1; Test that AddressSanitizer instruments "(*a)++" only once.
2; RUN: opt < %s -asan -S -asan-opt=1 | FileCheck %s -check-prefix=OPT1
3; RUN: opt < %s -asan -S -asan-opt=0 | FileCheck %s -check-prefix=OPT0
4
5target 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"
6target triple = "x86_64-unknown-linux-gnu"
7define void @IncrementMe(i32* %a) sanitize_address {
8entry:
9  %tmp1 = load i32* %a, align 4
10  %tmp2 = add i32 %tmp1,  1
11  store i32 %tmp2, i32* %a, align 4
12  ret void
13}
14
15; With optimizations enabled we should see only one call to __asan_report_*
16; OPT1: IncrementMe
17; OPT1: __asan_report_
18; OPT1-NOT: __asan_report_
19; OPT1: asan.module_ctor
20
21; Without optimizations we should see two calls to __asan_report_*
22; OPT0: IncrementMe
23; OPT0: __asan_report_
24; OPT0: __asan_report_
25; OPT0: asan.module_ctor
26