forked from OSchip/llvm-project
35 lines
998 B
LLVM
35 lines
998 B
LLVM
; RUN: opt -S -instsimplify -instcombine < %s | FileCheck %s
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; CHECK-LABEL: define void @checkNonnullLaunder()
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define void @checkNonnullLaunder() {
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; CHECK: %[[p:.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* nonnull %0)
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; CHECK: call void @use(i8* nonnull %[[p]])
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entry:
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%0 = alloca i8, align 8
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%p = call i8* @llvm.launder.invariant.group.p0i8(i8* %0)
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%p2 = call i8* @llvm.launder.invariant.group.p0i8(i8* %p)
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call void @use(i8* %p2)
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ret void
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}
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; CHECK-LABEL: define void @checkNonnullStrip()
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define void @checkNonnullStrip() {
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; CHECK: %[[p:.*]] = call i8* @llvm.strip.invariant.group.p0i8(i8* nonnull %0)
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; CHECK: call void @use(i8* nonnull %[[p]])
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entry:
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%0 = alloca i8, align 8
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%p = call i8* @llvm.strip.invariant.group.p0i8(i8* %0)
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%p2 = call i8* @llvm.strip.invariant.group.p0i8(i8* %p)
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call void @use(i8* %p2)
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ret void
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}
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declare i8* @llvm.launder.invariant.group.p0i8(i8*)
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declare i8* @llvm.strip.invariant.group.p0i8(i8*)
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declare void @use(i8*)
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