[llvm] r294040 - [InstCombine] auto-generate better test checks; NFC

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Fri Feb  3 14:56:38 2017
New Revision: 294040

URL: http://llvm.org/viewvc/llvm-project?rev=294040&view=rev
Log:
[InstCombine] auto-generate better test checks; NFC

Modified:
    llvm/trunk/test/Transforms/InstCombine/pr19420.ll

Modified: llvm/trunk/test/Transforms/InstCombine/pr19420.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/pr19420.ll?rev=294040&r1=294039&r2=294040&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/pr19420.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/pr19420.ll Fri Feb  3 14:56:38 2017
@@ -1,36 +1,44 @@
 ; RUN: opt -S -instcombine < %s | FileCheck %s
 
-; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL
-; CHECK: mul <4 x i32> %in, <i32 0, i32 -32, i32 0, i32 -32>
-; CHECK-NEXT: ret
 define <4 x i32> @test_FoldShiftByConstant_CreateSHL(<4 x i32> %in) {
+; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL(
+; CHECK-NEXT:    [[VSHL_N:%.*]] = mul <4 x i32> %in, <i32 0, i32 -32, i32 0, i32 -32>
+; CHECK-NEXT:    ret <4 x i32> [[VSHL_N]]
+;
   %mul.i = mul <4 x i32> %in, <i32 0, i32 -1, i32 0, i32 -1>
   %vshl_n = shl <4 x i32> %mul.i, <i32 5, i32 5, i32 5, i32 5>
   ret <4 x i32> %vshl_n
 }
 
-; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL2
-; CHECK: mul <8 x i16> %in, <i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32>
-; CHECK-NEXT: ret
 define <8 x i16> @test_FoldShiftByConstant_CreateSHL2(<8 x i16> %in) {
+; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL2(
+; CHECK-NEXT:    [[VSHL_N:%.*]] = mul <8 x i16> %in, <i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32>
+; CHECK-NEXT:    ret <8 x i16> [[VSHL_N]]
+;
   %mul.i = mul <8 x i16> %in, <i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1>
   %vshl_n = shl <8 x i16> %mul.i, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
   ret <8 x i16> %vshl_n
 }
 
-; CHECK-LABEL: @test_FoldShiftByConstant_CreateAnd
-; CHECK: mul <16 x i8> %in0, <i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33>
-; CHECK-NEXT: and <16 x i8> %vsra_n2, <i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32>
-; CHECK-NEXT: ret
 define <16 x i8> @test_FoldShiftByConstant_CreateAnd(<16 x i8> %in0) {
+; CHECK-LABEL: @test_FoldShiftByConstant_CreateAnd(
+; CHECK-NEXT:    [[VSRA_N2:%.*]] = mul <16 x i8> %in0, <i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33>
+; CHECK-NEXT:    [[VSHL_N:%.*]] = and <16 x i8> [[VSRA_N2]], <i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32>
+; CHECK-NEXT:    ret <16 x i8> [[VSHL_N]]
+;
   %vsra_n = ashr <16 x i8> %in0, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
   %tmp = add <16 x i8> %in0, %vsra_n
   %vshl_n = shl <16 x i8> %tmp, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
   ret <16 x i8> %vshl_n
 }
 
-
 define i32 @bar(i32 %x, i32 %y) {
+; CHECK-LABEL: @bar(
+; CHECK-NEXT:    [[B1:%.*]] = shl i32 %y, 4
+; CHECK-NEXT:    [[A2:%.*]] = add i32 [[B1]], %x
+; CHECK-NEXT:    [[C:%.*]] = and i32 [[A2]], -16
+; CHECK-NEXT:    ret i32 [[C]]
+;
   %a = lshr i32 %x, 4
   %b = add i32 %a, %y
   %c = shl i32 %b, 4
@@ -38,16 +46,25 @@ define i32 @bar(i32 %x, i32 %y) {
 }
 
 define <2 x i32> @bar_v2i32(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @bar_v2i32(
+; CHECK-NEXT:    [[B1:%.*]] = shl <2 x i32> %y, <i32 5, i32 5>
+; CHECK-NEXT:    [[A2:%.*]] = add <2 x i32> [[B1]], %x
+; CHECK-NEXT:    [[C:%.*]] = and <2 x i32> [[A2]], <i32 -32, i32 -32>
+; CHECK-NEXT:    ret <2 x i32> [[C]]
+;
   %a = lshr <2 x i32> %x, <i32 5, i32 5>
   %b = add <2 x i32> %a, %y
   %c = shl <2 x i32> %b, <i32 5, i32 5>
   ret <2 x i32> %c
 }
 
-
-
-
 define i32 @foo(i32 %x, i32 %y) {
+; CHECK-LABEL: @foo(
+; CHECK-NEXT:    [[C1:%.*]] = shl i32 %y, 4
+; CHECK-NEXT:    [[X_MASK:%.*]] = and i32 %x, 128
+; CHECK-NEXT:    [[D:%.*]] = add i32 [[X_MASK]], [[C1]]
+; CHECK-NEXT:    ret i32 [[D]]
+;
   %a = lshr i32 %x, 4
   %b = and i32 %a, 8
   %c = add i32 %b, %y
@@ -56,6 +73,13 @@ define i32 @foo(i32 %x, i32 %y) {
 }
 
 define <2 x i32> @foo_v2i32(<2 x i32> %x, <2 x i32> %y) {
+; CHECK-LABEL: @foo_v2i32(
+; CHECK-NEXT:    [[A:%.*]] = lshr <2 x i32> %x, <i32 4, i32 4>
+; CHECK-NEXT:    [[B:%.*]] = and <2 x i32> [[A]], <i32 8, i32 8>
+; CHECK-NEXT:    [[C:%.*]] = add <2 x i32> [[B]], %y
+; CHECK-NEXT:    [[D:%.*]] = shl <2 x i32> [[C]], <i32 4, i32 4>
+; CHECK-NEXT:    ret <2 x i32> [[D]]
+;
   %a = lshr <2 x i32> %x, <i32 4, i32 4>
   %b = and <2 x i32> %a, <i32 8, i32 8>
   %c = add <2 x i32> %b, %y
@@ -63,5 +87,3 @@ define <2 x i32> @foo_v2i32(<2 x i32> %x
   ret <2 x i32> %d
 }
 
-
-