[llvm] r348339 - [X86] Add more cost model tests for vector reductions with narrow vector types. NFC

Craig Topper via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 4 23:26:57 PST 2018


Author: ctopper
Date: Tue Dec  4 23:26:57 2018
New Revision: 348339

URL: http://llvm.org/viewvc/llvm-project?rev=348339&view=rev
Log:
[X86] Add more cost model tests for vector reductions with narrow vector types. NFC

Modified:
    llvm/trunk/test/Analysis/CostModel/X86/reduce-add-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-add.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-and-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-and.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-mul-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-mul.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-or-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-or.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-smax-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-smax.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-smin-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-smin.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-umax-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-umax.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-umin-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-umin.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-xor-widen.ll
    llvm/trunk/test/Analysis/CostModel/X86/reduce-xor.ll

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-add-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-add-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-add-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-add-widen.ll Tue Dec  4 23:26:57 2018
@@ -108,6 +108,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -116,6 +117,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -124,6 +126,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -132,6 +135,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 49 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -140,6 +144,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -148,6 +153,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -156,6 +162,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -164,6 +171,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -171,6 +179,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.add.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -181,6 +190,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 23 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -189,6 +200,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -197,6 +210,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -205,6 +220,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 61 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -213,6 +230,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -221,6 +240,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -229,6 +250,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -237,6 +260,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -244,6 +269,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.add.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -264,12 +291,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.add.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.add.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-add.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-add.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-add.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-add.ll Tue Dec  4 23:26:57 2018
@@ -108,6 +108,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -116,6 +117,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -124,6 +126,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -132,6 +135,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 49 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -140,6 +144,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -148,6 +153,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -156,6 +162,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -164,6 +171,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -171,6 +179,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.add.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16> undef)
@@ -181,6 +190,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -189,6 +200,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -197,6 +210,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -205,6 +220,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 61 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -213,6 +230,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -221,6 +240,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -229,6 +250,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -237,6 +260,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -244,6 +269,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.add.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8> undef)
@@ -264,12 +291,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.add.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.add.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.add.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.add.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.add.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.add.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.add.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-and-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-and-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-and-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-and-widen.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.and.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 23 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.and.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.and.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.and.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-and.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-and.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-and.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-and.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.and.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.and.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.and.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.and.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.and.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.and.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.and.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.and.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.and.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-mul-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-mul-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-mul-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-mul-widen.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 49 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.mul.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 23 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 67 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 89 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 113 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 77 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 77 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 171 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 33 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 106 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 86 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 36 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 86 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 164 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.mul.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.mul.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.mul.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-mul.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-mul.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-mul.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-mul.ll Tue Dec  4 23:26:57 2018
@@ -140,6 +140,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 15 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -148,6 +149,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 15 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -156,6 +158,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -164,6 +167,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 49 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -172,6 +176,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -180,6 +185,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -188,6 +194,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -196,6 +203,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -203,6 +211,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.mul.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16> undef)
@@ -213,6 +222,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 15 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 89 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 113 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -221,6 +232,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 15 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 77 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -229,6 +242,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 77 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -237,6 +252,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 53 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 171 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -245,6 +262,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 33 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 106 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -253,6 +272,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 86 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -261,6 +282,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 36 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -269,6 +292,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 86 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -276,6 +301,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 164 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.mul.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8> undef)
@@ -296,12 +323,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.mul.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.mul.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.mul.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.mul.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.mul.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.mul.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.mul.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-or-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-or-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-or-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-or-widen.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.or.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 23 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.or.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.or.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.or.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-or.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-or.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-or.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-or.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.or.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.or.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.or.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.or.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.or.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.or.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.or.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.or.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.or.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-smax-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-smax-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-smax-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-smax-widen.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 18 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.smax.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 28 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.smax.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.smax.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.smax.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-smax.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-smax.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-smax.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-smax.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.smax.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.smax.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.smax.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.smax.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.smax.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smax.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.smax.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.smax.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smax.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-smin-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-smin-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-smin-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-smin-widen.ll Tue Dec  4 23:26:57 2018
@@ -197,6 +197,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 28 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -205,6 +207,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -213,6 +217,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -221,6 +227,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -229,6 +237,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -237,6 +247,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -245,6 +257,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -253,6 +267,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -260,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.smin.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -280,12 +298,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.smin.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.smin.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-smin.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-smin.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-smin.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-smin.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.smin.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.smin.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.smin.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.smin.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.smin.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.smin.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.smin.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.smin.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.smin.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-umax-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-umax-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-umax-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-umax-widen.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 18 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.umax.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 28 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.umax.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.umax.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.umax.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-umax.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-umax.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-umax.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-umax.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.umax.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.umax.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.umax.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.umax.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.umax.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umax.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.umax.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.umax.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umax.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-umin-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-umin-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-umin-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-umin-widen.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 18 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.umin.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 28 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 40 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.umin.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.umin.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.umin.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-umin.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-umin.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-umin.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-umin.ll Tue Dec  4 23:26:57 2018
@@ -124,6 +124,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 29 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -132,6 +133,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 17 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -140,6 +142,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -148,6 +151,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -156,6 +160,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -164,6 +169,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -172,6 +178,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -180,6 +187,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -187,6 +195,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.umin.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16> undef)
@@ -197,6 +206,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 25 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 52 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 56 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -205,6 +216,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 14 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -213,6 +226,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 20 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -221,6 +236,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 69 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -229,6 +246,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -237,6 +256,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -245,6 +266,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -253,6 +276,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -260,6 +285,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.umin.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8> undef)
@@ -280,12 +307,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.umin.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.umin.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.umin.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.umin.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.umin.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.umin.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.umin.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-xor-widen.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-xor-widen.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-xor-widen.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-xor-widen.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 13 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.xor.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 23 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 34 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.xor.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.xor.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.xor.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8>)

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduce-xor.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduce-xor.ll?rev=348339&r1=348338&r2=348339&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduce-xor.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduce-xor.ll Tue Dec  4 23:26:57 2018
@@ -92,6 +92,7 @@ define i32 @reduce_i32(i32 %arg) {
 
 define i32 @reduce_i16(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i16'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -100,6 +101,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i16'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -108,6 +110,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i16'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -116,6 +119,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i16'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 37 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -124,6 +128,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i16'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -132,6 +137,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i16'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -140,6 +146,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i16'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -148,6 +155,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i16'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -155,6 +163,7 @@ define i32 @reduce_i16(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 27 for instruction: %V64 = call i16 @llvm.experimental.vector.reduce.xor.i16.v64i16(<64 x i16> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2  = call i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16> undef)
   %V4  = call i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16> undef)
   %V8  = call i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16> undef)
   %V16 = call i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16> undef)
@@ -165,6 +174,8 @@ define i32 @reduce_i16(i32 %arg) {
 
 define i32 @reduce_i8(i32 %arg) {
 ; SSE2-LABEL: 'reduce_i8'
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSE2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 19 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 45 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 47 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -173,6 +184,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSSE3-LABEL: 'reduce_i8'
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSSE3-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -181,6 +194,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSSE3-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SSE42-LABEL: 'reduce_i8'
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; SSE42-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 11 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -189,6 +204,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; SSE42-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX1-LABEL: 'reduce_i8'
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX1-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 46 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -197,6 +214,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX1-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX2-LABEL: 'reduce_i8'
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX2-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -205,6 +224,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX2-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512F-LABEL: 'reduce_i8'
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512F-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -213,6 +234,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512F-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512BW-LABEL: 'reduce_i8'
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 21 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -221,6 +244,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512BW-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; AVX512DQ-LABEL: 'reduce_i8'
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V4 = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V8 = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V16 = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 26 for instruction: %V32 = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -228,6 +253,8 @@ define i32 @reduce_i8(i32 %arg) {
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 32 for instruction: %V128 = call i8 @llvm.experimental.vector.reduce.xor.i8.v128i8(<128 x i8> undef)
 ; AVX512DQ-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
+  %V2   = call i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8> undef)
+  %V4   = call i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8> undef)
   %V8   = call i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8> undef)
   %V16  = call i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8> undef)
   %V32  = call i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8> undef)
@@ -348,12 +375,15 @@ declare i32 @llvm.experimental.vector.re
 declare i32 @llvm.experimental.vector.reduce.xor.i32.v16i32(<16 x i32>)
 declare i32 @llvm.experimental.vector.reduce.xor.i32.v32i32(<32 x i32>)
 
+declare i16 @llvm.experimental.vector.reduce.xor.i16.v2i16(<2 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v4i16(<4 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v8i16(<8 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v16i16(<16 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v32i16(<32 x i16>)
 declare i16 @llvm.experimental.vector.reduce.xor.i16.v64i16(<64 x i16>)
 
+declare i8 @llvm.experimental.vector.reduce.xor.i8.v2i8(<2 x i8>)
+declare i8 @llvm.experimental.vector.reduce.xor.i8.v4i8(<4 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v8i8(<8 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v16i8(<16 x i8>)
 declare i8 @llvm.experimental.vector.reduce.xor.i8.v32i8(<32 x i8>)




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