7d6e8f2a96
If we vectorize a e.g. store, we leave around a bunch of getelementptrs for the individual scalar stores which we removed. We can go ahead and delete them as well. This is purely for test output quality and readability. It should have no effect in any sane pipeline. Differential Revision: https://reviews.llvm.org/D122493
65 lines
2.4 KiB
LLVM
65 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S < %s -slp-vectorizer -slp-max-reg-size=128 -slp-min-reg-size=128 | FileCheck %s
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declare void @llvm.sideeffect()
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; SLP vectorization across a @llvm.sideeffect.
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define void @test_sideeffect(float* %p) {
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; CHECK-LABEL: @test_sideeffect(
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; CHECK-NEXT: [[P0:%.*]] = getelementptr float, float* [[P:%.*]], i64 0
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; CHECK-NEXT: call void @llvm.sideeffect()
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; CHECK-NEXT: call void @llvm.sideeffect()
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[P0]] to <4 x float>*
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; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
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; CHECK-NEXT: [[TMP3:%.*]] = bitcast float* [[P0]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP2]], <4 x float>* [[TMP3]], align 4
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; CHECK-NEXT: ret void
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;
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%p0 = getelementptr float, float* %p, i64 0
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%p1 = getelementptr float, float* %p, i64 1
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%p2 = getelementptr float, float* %p, i64 2
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%p3 = getelementptr float, float* %p, i64 3
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%l0 = load float, float* %p0
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%l1 = load float, float* %p1
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%l2 = load float, float* %p2
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call void @llvm.sideeffect()
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%l3 = load float, float* %p3
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store float %l0, float* %p0
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call void @llvm.sideeffect()
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store float %l1, float* %p1
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store float %l2, float* %p2
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store float %l3, float* %p3
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ret void
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}
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declare void @foo()
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define void @test_inaccessiblememonly(float* %p) {
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; CHECK-LABEL: @test_inaccessiblememonly(
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; CHECK-NEXT: [[P0:%.*]] = getelementptr float, float* [[P:%.*]], i64 0
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; CHECK-NEXT: call void @foo() #[[ATTR1:[0-9]+]]
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; CHECK-NEXT: call void @foo() #[[ATTR1]]
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast float* [[P0]] to <4 x float>*
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; CHECK-NEXT: [[TMP2:%.*]] = load <4 x float>, <4 x float>* [[TMP1]], align 4
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; CHECK-NEXT: [[TMP3:%.*]] = bitcast float* [[P0]] to <4 x float>*
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; CHECK-NEXT: store <4 x float> [[TMP2]], <4 x float>* [[TMP3]], align 4
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; CHECK-NEXT: ret void
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;
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%p0 = getelementptr float, float* %p, i64 0
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%p1 = getelementptr float, float* %p, i64 1
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%p2 = getelementptr float, float* %p, i64 2
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%p3 = getelementptr float, float* %p, i64 3
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%l0 = load float, float* %p0
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%l1 = load float, float* %p1
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%l2 = load float, float* %p2
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call void @foo() inaccessiblememonly
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%l3 = load float, float* %p3
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store float %l0, float* %p0
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call void @foo() inaccessiblememonly
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store float %l1, float* %p1
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store float %l2, float* %p2
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store float %l3, float* %p3
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ret void
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}
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