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[SLP] Test for extractelement cost fix. 

llvm-svn: 294980
This commit is contained in:
Alexey Bataev 2017-02-13 19:08:19 +00:00
parent 2f84e43ce2
commit 7bed48e7a3
1 changed files with 20 additions and 0 deletions
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20
llvm/test/Transforms/SLPVectorizer/X86/extractelement.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-unknown-linux -march=core-avx2 | FileCheck %s
define float @f(<2 x float> %x) {
; CHECK-LABEL: @f(
; CHECK-NEXT: [[X0:%.*]] = extractelement <2 x float> [[X:%.*]], i32 0
; CHECK-NEXT: [[X1:%.*]] = extractelement <2 x float> [[X]], i32 1
; CHECK-NEXT: [[X0X0:%.*]] = fmul float [[X0]], [[X0]]
; CHECK-NEXT: [[X1X1:%.*]] = fmul float [[X1]], [[X1]]
; CHECK-NEXT: [[ADD:%.*]] = fadd float [[X0X0]], [[X1X1]]
; CHECK-NEXT: ret float [[ADD]]
;
%x0 = extractelement <2 x float> %x, i32 0
%x1 = extractelement <2 x float> %x, i32 1
%x0x0 = fmul float %x0, %x0
%x1x1 = fmul float %x1, %x1
%add = fadd float %x0x0, %x1x1
ret float %add
}