| 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> |
| 20 | int main(int argc, char **argv) { |
| 21 | int *volatile p = (int *)malloc(size: sizeof(int)); |
| 22 | *p = 42; |
| 23 | free(ptr: p); |
| 24 | |
| 25 | if (*p) |
| 26 | exit(status: 0); |
| 27 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
| 28 | // CHECK: {{#0 0x.* in main .*use-after-free.cpp:}}[[@LINE-3]] |
| 29 | |
| 30 | // CHECK-ORIGINS: Uninitialized value was created by a heap deallocation |
| 31 | // CHECK-ORIGINS: {{#0 0x.* in .*free}} |
| 32 | // CHECK-ORIGINS: {{#1 0x.* in main .*use-after-free.cpp:}}[[@LINE-9]] |
| 33 | return 0; |
| 34 | } |
| 35 | |