1 | // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O0 %s -o %t && %run %t >%t.out 2>&1 |
2 | // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O1 %s -o %t && %run %t >%t.out 2>&1 |
3 | // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O2 %s -o %t && %run %t >%t.out 2>&1 |
4 | // RUN: %clangxx_msan -fno-sanitize-memory-param-retval -O3 %s -o %t && %run %t >%t.out 2>&1 |
5 | |
6 | // Test that (no_sanitize_memory) functions DO NOT propagate shadow. |
7 | |
8 | #include <stdlib.h> |
9 | #include <stdio.h> |
10 | |
11 | __attribute__((noinline)) |
12 | __attribute__((weak)) |
13 | __attribute__((no_sanitize_memory)) |
14 | int f(int x) { |
15 | return x; |
16 | } |
17 | |
18 | int main(void) { |
19 | int x; |
20 | int * volatile p = &x; |
21 | int y = f(x: *p); |
22 | if (y) |
23 | exit(status: 0); |
24 | return 0; |
25 | } |
26 | |