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[SLP] Add a tests for PR36280, NFC.

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llvm-svn: 324510
This commit is contained in:
Alexey Bataev 2018-02-07 20:11:37 +00:00
parent 9c82180d3a
commit cd8d6de381
1 changed files with 28 additions and 0 deletions
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llvm/test/Transforms/SLPVectorizer/X86/PR36280.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -S < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 | FileCheck %s
define float @jacobi(float* %p, float %x, float %y, float %z) {
; CHECK-LABEL: @jacobi(
; CHECK-NEXT: [[GEP1:%.*]] = getelementptr float, float* [[P:%.*]], i64 1
; CHECK-NEXT: [[GEP2:%.*]] = getelementptr float, float* [[P]], i64 2
; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[GEP1]] to <2 x float>*
; CHECK-NEXT: [[TMP2:%.*]] = load <2 x float>, <2 x float>* [[TMP1]], align 4
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x float> undef, float [[X:%.*]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x float> [[TMP3]], float [[Y:%.*]], i32 1
; CHECK-NEXT: [[TMP5:%.*]] = fmul <2 x float> [[TMP4]], [[TMP2]]
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x float> [[TMP5]], i32 0
; CHECK-NEXT: [[ADD1:%.*]] = fadd float [[TMP6]], [[Z:%.*]]
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x float> [[TMP5]], i32 1
; CHECK-NEXT: [[ADD2:%.*]] = fadd float [[TMP7]], [[ADD1]]
; CHECK-NEXT: ret float [[ADD2]]
;
%gep1 = getelementptr float, float* %p, i64 1
%gep2 = getelementptr float, float* %p, i64 2
%p1 = load float, float* %gep1
%p2 = load float, float* %gep2
%mul1 = fmul float %p1, %x
%mul2 = fmul float %p2, %y
%add1 = fadd float %mul1, %z
%add2 = fadd float %mul2, %add1
ret float %add2
}