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1 // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1
2 // RUN: FileCheck %s < %t.out
3 // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1
4 // RUN: FileCheck %s < %t.out
5 // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1
6 // RUN: FileCheck %s < %t.out
7 // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1
8 // RUN: FileCheck %s < %t.out
9 
10 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1
11 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
12 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1
13 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
14 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1
15 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
16 // RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1
17 // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
18 
19 #include <stdlib.h>
main(int argc,char ** argv)20 int main(int argc, char **argv) {
21   int x;
22   int *volatile p = &x;
23   return *p;
24   // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
25   // CHECK: {{#0 0x.* in main .*stack-origin.cc:}}[[@LINE-2]]
26 
27   // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main'
28   // CHECK-ORIGINS: {{#0 0x.* in main .*stack-origin.cc:}}[[@LINE-8]]
29 
30   // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin.cc:.* main}}
31 }
32