[llvm] r288377 - [SLP] Additional tests with the cost of vector operations.

[Alexey Bataev via llvm-commits]

Author: abataev
Date: Thu Dec  1 11:26:54 2016
New Revision: 288377

URL: http://llvm.org/viewvc/llvm-project?rev=288377&view=rev
Log:
[SLP] Additional tests with the cost of vector operations.

Modified:
    llvm/trunk/test/Analysis/CostModel/X86/reduction.ll
    llvm/trunk/test/Transforms/SLPVectorizer/X86/reduction_unrolled.ll

Modified: llvm/trunk/test/Analysis/CostModel/X86/reduction.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/CostModel/X86/reduction.ll?rev=288377&r1=288376&r2=288377&view=diff
==============================================================================
--- llvm/trunk/test/Analysis/CostModel/X86/reduction.ll (original)
+++ llvm/trunk/test/Analysis/CostModel/X86/reduction.ll Thu Dec  1 11:26:54 2016
@@ -34,6 +34,8 @@ define fastcc i32 @reduction_cost_int(<8
 
 ; CHECK-LABEL: reduction_cost_int
 ; CHECK:  cost of 17 {{.*}} extractelement
+; AVX-LABEL: reduction_cost_int
+; AVX:  cost of 5 {{.*}} extractelement
 
   %r = extractelement <8 x i32> %bin.rdx.3, i32 0
   ret i32 %r

Modified: llvm/trunk/test/Transforms/SLPVectorizer/X86/reduction_unrolled.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/SLPVectorizer/X86/reduction_unrolled.ll?rev=288377&r1=288376&r2=288377&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/SLPVectorizer/X86/reduction_unrolled.ll (original)
+++ llvm/trunk/test/Transforms/SLPVectorizer/X86/reduction_unrolled.ll Thu Dec  1 11:26:54 2016
@@ -1,5 +1,7 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -slp-vectorizer -slp-vectorize-hor -S -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 < %s | FileCheck %s
+; RUN: opt -slp-vectorizer -slp-vectorize-hor -S -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 -debug < %s 2>&1 | FileCheck %s
+; RUN: opt -slp-vectorizer -slp-vectorize-hor -S -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 -debug < %s 2>&1 | FileCheck --check-prefix=SSE2 %s
+; REQUIRES: asserts
 
 ; int test(unsigned int *p) {
 ;   int sum = 0;
@@ -8,6 +10,10 @@
 ;   return sum;
 ; }
 
+; Vector cost is 5, Scalar cost is 32
+; CHECK: Adding cost -27 for reduction that starts with   %7 = load i32, i32* %arrayidx.7, align 4 (It is a splitting reduction)
+; Vector cost is 17, Scalar cost is 16
+; SSE2:  Adding cost 1 for reduction that starts with   %7 = load i32, i32* %arrayidx.7, align 4 (It is a splitting reduction)
 define i32 @test(i32* nocapture readonly %p) {
 ; CHECK-LABEL: @test(
 ; CHECK:         [[BC:%.*]] = bitcast i32* %p to <8 x i32>*
@@ -21,6 +27,18 @@ define i32 @test(i32* nocapture readonly
 ; CHECK-NEXT:    [[TMP2:%.*]] = extractelement <8 x i32> [[BIN_RDX4]], i32 0
 ; CHECK:         ret i32 [[TMP2]]
 ;
+; SSE2-LABEL: @test(
+; SSE2:         [[BC:%.*]] = bitcast i32* %p to <8 x i32>*
+; SSE2-NEXT:    [[LD:%.*]] = load <8 x i32>, <8 x i32>* [[BC]], align 4
+; SSE2:         [[RDX_SHUF:%.*]] = shufflevector <8 x i32> [[LD]], <8 x i32> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef>
+; SSE2-NEXT:    [[BIN_RDX:%.*]] = add <8 x i32> [[LD]], [[RDX_SHUF]]
+; SSE2-NEXT:    [[RDX_SHUF1:%.*]] = shufflevector <8 x i32> [[BIN_RDX]], <8 x i32> undef, <8 x i32> <i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
+; SSE2-NEXT:    [[BIN_RDX2:%.*]] = add <8 x i32> [[BIN_RDX]], [[RDX_SHUF1]]
+; SSE2-NEXT:    [[RDX_SHUF3:%.*]] = shufflevector <8 x i32> [[BIN_RDX2]], <8 x i32> undef, <8 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
+; SSE2-NEXT:    [[BIN_RDX4:%.*]] = add <8 x i32> [[BIN_RDX2]], [[RDX_SHUF3]]
+; SSE2-NEXT:    [[TMP2:%.*]] = extractelement <8 x i32> [[BIN_RDX4]], i32 0
+; SSE2:         ret i32 [[TMP2]]
+;
 entry:
   %0 = load i32, i32* %p, align 4
   %arrayidx.1 = getelementptr inbounds i32, i32* %p, i64 1