xref: /llvm-project/llvm/test/Analysis/MemorySSA/allow-check.ll (revision 37d6e5b7a555e8c85c3e34803a710725c26857c7) 
1; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s --implicit-check-not=MemoryDef
2;
3; Ensures that allow.*.check are treated as not reading or writing memory.
4
5target triple = "aarch64-linux"
6
7define i1 @test_runtime(ptr %a) local_unnamed_addr {
8entry:
9; CHECK: 1 = MemoryDef(liveOnEntry)
10  store i32 4, ptr %a, align 4
11  %allow = call i1 @llvm.allow.runtime.check(metadata !"test_check")
12  %0 = load i32, ptr %a, align 4
13; CHECK: MemoryUse(1)
14  ret i1 %allow
15}
16
17declare i1 @llvm.allow.runtime.check(metadata)
18
19define i1 @test_ubsan(ptr %a) local_unnamed_addr {
20entry:
21; CHECK: 1 = MemoryDef(liveOnEntry)
22  store i32 4, ptr %a, align 4
23  %allow = call i1 @llvm.allow.ubsan.check(i8 7)
24  %0 = load i32, ptr %a, align 4
25; CHECK: MemoryUse(1)
26  ret i1 %allow
27}
28
29declare i1 @llvm.allow.ubsan.check(i8)
30