37d6e5b7a5
RFC: https://discourse.llvm.org/t/rfc-add-llvm-experimental-hot-intrinsic-or-llvm-hot/77641
30 lines
866 B
LLVM
30 lines
866 B
LLVM
; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s --implicit-check-not=MemoryDef
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;
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; Ensures that allow.*.check are treated as not reading or writing memory.
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target triple = "aarch64-linux"
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define i1 @test_runtime(ptr %a) local_unnamed_addr {
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entry:
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; CHECK: 1 = MemoryDef(liveOnEntry)
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store i32 4, ptr %a, align 4
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%allow = call i1 @llvm.allow.runtime.check(metadata !"test_check")
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%0 = load i32, ptr %a, align 4
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; CHECK: MemoryUse(1)
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ret i1 %allow
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}
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declare i1 @llvm.allow.runtime.check(metadata)
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define i1 @test_ubsan(ptr %a) local_unnamed_addr {
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entry:
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; CHECK: 1 = MemoryDef(liveOnEntry)
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store i32 4, ptr %a, align 4
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%allow = call i1 @llvm.allow.ubsan.check(i8 7)
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%0 = load i32, ptr %a, align 4
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; CHECK: MemoryUse(1)
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ret i1 %allow
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}
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declare i1 @llvm.allow.ubsan.check(i8)
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