heap-origin.cc revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1// RUN: %clangxx_msan -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
2// RUN: FileCheck %s < %t.out
3// RUN: %clangxx_msan -m64 -O1 %s -o %t && not %run %t >%t.out 2>&1
4// RUN: FileCheck %s < %t.out
5// RUN: %clangxx_msan -m64 -O2 %s -o %t && not %run %t >%t.out 2>&1
6// RUN: FileCheck %s < %t.out
7// RUN: %clangxx_msan -m64 -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 -m64 -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 -m64 -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 -m64 -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 -m64 -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>
20int main(int argc, char **argv) {
21  char *volatile x = (char*)malloc(5 * sizeof(char));
22  return *x;
23  // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
24  // CHECK: {{#0 0x.* in main .*heap-origin.cc:}}[[@LINE-2]]
25
26  // CHECK-ORIGINS: Uninitialized value was created by a heap allocation
27  // CHECK-ORIGINS: {{#0 0x.* in .*malloc}}
28  // CHECK-ORIGINS: {{#1 0x.* in main .*heap-origin.cc:}}[[@LINE-7]]
29
30  // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*heap-origin.cc:.* main}}
31}
32