| // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| // RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
| |
| #include <stdlib.h> |
| int main(int argc, char **argv) { |
| int *volatile p = (int *)malloc(sizeof(int)); |
| *p = 42; |
| free(p); |
| |
| if (*p) |
| exit(0); |
| // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
| // CHECK: {{#0 0x.* in main .*use-after-free.cpp:}}[[@LINE-3]] |
| |
| // CHECK-ORIGINS: Uninitialized value was created by a heap deallocation |
| // CHECK-ORIGINS: {{#0 0x.* in .*free}} |
| // CHECK-ORIGINS: {{#1 0x.* in main .*use-after-free.cpp:}}[[@LINE-9]] |
| return 0; |
| } |
