1*d21b3d34SFangrui Song // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
2*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
3*d21b3d34SFangrui Song // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1
4*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
5*d21b3d34SFangrui Song // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1
6*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
7*d21b3d34SFangrui Song // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1
8*d21b3d34SFangrui Song // RUN: FileCheck %s < %t.out
9*d21b3d34SFangrui Song 
10*d21b3d34SFangrui Song #include <stdlib.h>
main(int argc,char ** argv)11*d21b3d34SFangrui Song int main(int argc, char **argv) {
12*d21b3d34SFangrui Song   int x;
13*d21b3d34SFangrui Song   int *volatile p = &x;
14*d21b3d34SFangrui Song   int z = *p ? 1 : 0;
15*d21b3d34SFangrui Song   if (z)
16*d21b3d34SFangrui Song     exit(0);
17*d21b3d34SFangrui Song   // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
18*d21b3d34SFangrui Song   // CHECK: {{#0 0x.* in main .*select.cpp:}}[[@LINE-3]]
19*d21b3d34SFangrui Song 
20*d21b3d34SFangrui Song   // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*select.cpp:.* main}}
21*d21b3d34SFangrui Song   return 0;
22*d21b3d34SFangrui Song }
23