| // RUN: %clang_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s |
| #include <stdlib.h> |
| |
| void __attribute__((noinline)) foo(int *mem) { |
| free(mem); |
| } |
| |
| void __attribute__((noinline)) bar(int *mem) { |
| mem[0] = 42; |
| } |
| |
| int main() { |
| int *mem = (int*)malloc(100); |
| foo(mem); |
| bar(mem); |
| return 0; |
| } |
| |
| // CHECK: WARNING: ThreadSanitizer: heap-use-after-free |
| // CHECK: Write of size 4 at {{.*}} by main thread: |
| // CHECK: #0 bar |
| // CHECK: #1 main |
| // CHECK: Previous write of size 8 at {{.*}} by main thread: |
| // CHECK: #0 free |
| // CHECK: #{{1|2}} foo |
| // CHECK: #{{2|3}} main |
