llvm/test/Transforms/LoadStoreVectorizer/int_sideeffect.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s -load-store-vectorizer | FileCheck %s
; RUN: opt -S < %s -passes='function(load-store-vectorizer)' | FileCheck %s

declare void @llvm.sideeffect()

; load-store vectorization across a @llvm.sideeffect.

define void @test_sideeffect(float* %p) {
; CHECK-LABEL: @test_sideeffect(
; CHECK-NEXT:    [[P0:%.*]] = getelementptr float, float* [[P:%.*]], i64 0
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT:    [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 16
; CHECK-NEXT:    [[L01:%.*]] = extractelement <4 x float> [[TMP2]], i32 0
; CHECK-NEXT:    [[L12:%.*]] = extractelement <4 x float> [[TMP2]], i32 1
; CHECK-NEXT:    [[L23:%.*]] = extractelement <4 x float> [[TMP2]], i32 2
; CHECK-NEXT:    [[L34:%.*]] = extractelement <4 x float> [[TMP2]], i32 3
; CHECK-NEXT:    call void @llvm.sideeffect()
; CHECK-NEXT:    call void @llvm.sideeffect()
; CHECK-NEXT:    [[TMP3:%.*]] = insertelement <4 x float> poison, float [[L01]], i32 0
; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x float> [[TMP3]], float [[L12]], i32 1
; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x float> [[TMP4]], float [[L23]], i32 2
; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x float> [[TMP5]], float [[L34]], i32 3
; CHECK-NEXT:    [[TMP7:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT:    store <4 x float> [[TMP6]], <4 x float>* [[TMP7]], align 16
; CHECK-NEXT:    ret void
;
  %p0 = getelementptr float, float* %p, i64 0
  %p1 = getelementptr float, float* %p, i64 1
  %p2 = getelementptr float, float* %p, i64 2
  %p3 = getelementptr float, float* %p, i64 3
  %l0 = load float, float* %p0, align 16
  %l1 = load float, float* %p1
  %l2 = load float, float* %p2
  call void @llvm.sideeffect()
  %l3 = load float, float* %p3
  store float %l0, float* %p0, align 16
  call void @llvm.sideeffect()
  store float %l1, float* %p1
  store float %l2, float* %p2
  store float %l3, float* %p3
  ret void
}

declare void @foo()

define void @test_inaccessiblememonly(float* %p) {
; CHECK-LABEL: @test_inaccessiblememonly(
; CHECK-NEXT:    [[P0:%.*]] = getelementptr float, float* [[P:%.*]], i64 0
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT:    [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 16
; CHECK-NEXT:    [[L01:%.*]] = extractelement <4 x float> [[TMP2]], i32 0
; CHECK-NEXT:    [[L12:%.*]] = extractelement <4 x float> [[TMP2]], i32 1
; CHECK-NEXT:    [[L23:%.*]] = extractelement <4 x float> [[TMP2]], i32 2
; CHECK-NEXT:    [[L34:%.*]] = extractelement <4 x float> [[TMP2]], i32 3
; CHECK-NEXT:    call void @foo() #[[ATTR1:[0-9]+]]
; CHECK-NEXT:    call void @foo() #[[ATTR1]]
; CHECK-NEXT:    [[TMP3:%.*]] = insertelement <4 x float> poison, float [[L01]], i32 0
; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <4 x float> [[TMP3]], float [[L12]], i32 1
; CHECK-NEXT:    [[TMP5:%.*]] = insertelement <4 x float> [[TMP4]], float [[L23]], i32 2
; CHECK-NEXT:    [[TMP6:%.*]] = insertelement <4 x float> [[TMP5]], float [[L34]], i32 3
; CHECK-NEXT:    [[TMP7:%.*]] = bitcast float* [[P0]] to <4 x float>*
; CHECK-NEXT:    store <4 x float> [[TMP6]], <4 x float>* [[TMP7]], align 16
; CHECK-NEXT:    ret void
;
  %p0 = getelementptr float, float* %p, i64 0
  %p1 = getelementptr float, float* %p, i64 1
  %p2 = getelementptr float, float* %p, i64 2
  %p3 = getelementptr float, float* %p, i64 3
  %l0 = load float, float* %p0, align 16
  %l1 = load float, float* %p1
  %l2 = load float, float* %p2
  call void @foo() inaccessiblememonly nounwind
  %l3 = load float, float* %p3
  store float %l0, float* %p0, align 16
  call void @foo() inaccessiblememonly nounwind
  store float %l1, float* %p1
  store float %l2, float* %p2
  store float %l3, float* %p3
  ret void
}