1; Test that ASAN will not instrument lifetime markers on alloca offsets.
2;
3; RUN: opt < %s --asan --asan-use-after-scope -S -enable-new-pm=0 | FileCheck %s
4; RUN: opt < %s -passes=asan-function-pipeline --asan-use-after-scope -S | FileCheck %s
5
6target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
7target triple = "x86_64-apple-macosx10.15.0"
8
9%t = type { void (%t*)*, void (%t*)*, %sub, i64 }
10%sub = type { i32 }
11
12define void @foo() sanitize_address {
13entry:
14  %0 = alloca %t, align 8
15  %x = getelementptr inbounds %t, %t* %0, i64 0, i32 2
16  %1 = bitcast %sub* %x to i8*
17  call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %1)
18  call void @bar(%sub* nonnull %x)
19  call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %1) #3
20  ret void
21}
22
23declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
24declare void @bar(%sub*)
25declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
26
27; CHECK: store i64 %[[STACK_BASE:.+]], i64* %asan_local_stack_base, align 8
28; CHECK-NOT: store i8 0
29; CHECK: call void @bar(%sub* nonnull %x)
30