1; RUN: opt < %s -tsan -S | FileCheck %s
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4target triple = "x86_64-unknown-linux-gnu"
5
6; no sanitize_thread attribute here
7define i32 @read_4_bytes(i32* %a) {
8entry:
9  %tmp1 = load i32* %a, align 4
10  ret i32 %tmp1
11}
12
13; CHECK: define i32 @read_4_bytes(i32* %a) {
14; CHECK-NEXT: entry:
15; CHECK-NEXT:   %tmp1 = load i32* %a, align 4
16; CHECK: ret i32 %tmp1
17
18; no sanitize_thread attribute here
19define i32 @read_4_bytes_and_call(i32* %a) {
20entry:
21  call void @foo()
22  %tmp1 = load i32* %a, align 4
23  ret i32 %tmp1
24}
25
26; CHECK: define i32 @read_4_bytes_and_call(i32* %a) {
27; CHECK-NEXT: entry:
28; CHECK-NEXT:   %0 = call i8* @llvm.returnaddress(i32 0)
29; CHECK-NEXT:   call void @__tsan_func_entry(i8* %0)
30; CHECK-NEXT:   call void @foo()
31; CHECK-NEXT:   %tmp1 = load i32* %a, align 4
32; CHECK-NEXT:   call void @__tsan_func_exit()
33; CHECK-NEXT:   ret i32 %tmp1
34
35declare void @foo()
36
37