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36 lines
861 B
LLVM
36 lines
861 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
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declare void @foo(i8* nocapture)
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define void @asan() sanitize_address {
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entry:
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; CHECK-LABEL: @asan(
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%text = alloca i8, align 1
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call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
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call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
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; CHECK: call void @llvm.lifetime.start
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; CHECK-NEXT: call void @llvm.lifetime.end
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call void @foo(i8* %text) ; Keep alloca alive
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ret void
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}
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define void @no_asan() {
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entry:
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; CHECK-LABEL: @no_asan(
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%text = alloca i8, align 1
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call void @llvm.lifetime.start.p0i8(i64 1, i8* %text)
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call void @llvm.lifetime.end.p0i8(i64 1, i8* %text)
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; CHECK-NO: call void @llvm.lifetime
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call void @foo(i8* %text) ; Keep alloca alive
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ret void
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}
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