| 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 | |