| 1 | // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t |
|---|---|
| 2 | // RUN: %run %t 2>&1 |
| 3 | // |
| 4 | // MSVC doesn't support VLAs |
| 5 | // UNSUPPORTED: msvc |
| 6 | |
| 7 | #include <assert.h> |
| 8 | #include <stdint.h> |
| 9 | |
| 10 | __attribute__((noinline)) void foo(int index, int len) { |
| 11 | volatile char str[len] __attribute__((aligned(32))); |
| 12 | assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); |
| 13 | str[index] = '1'; |
| 14 | } |
| 15 | |
| 16 | int main(int argc, char **argv) { |
| 17 | foo(index: 4, len: 5); |
| 18 | foo(index: 39, len: 40); |
| 19 | return 0; |
| 20 | } |
| 21 |