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 <sanitizer/msan_interface.h>
20#include <stdlib.h>
21
22int main(int argc, char **argv) {
23 int *volatile p = (int *)malloc(size: sizeof(int));
24
25 __msan_check_mem_is_initialized(x: p, size: sizeof(*p));
26 // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
27 // CHECK: {{#0 0x.* in main .*check_mem_is_initialized.cpp:}}[[@LINE-2]]
28
29 // CHECK-ORIGINS: Uninitialized value was created by a heap allocation
30 // CHECK-ORIGINS: {{#0 0x.* in .*malloc}}
31 // CHECK-ORIGINS: {{#1 0x.* in main .*check_mem_is_initialized.cpp:}}[[@LINE-8]]
32 return 0;
33}
34

source code of compiler-rt/test/msan/check_mem_is_initialized.cpp