28 lines · cpp
1// RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t2// RUN: %clangxx_asan -O3 -mllvm -asan-instrument-dynamic-allocas %s -o %t3// RUN: %run %t 2>&14//5// MSVC does not support asan-instrument-dynamic-allocas yet6// UNSUPPORTED: msvc7 8#include "sanitizer/asan_interface.h"9#include <assert.h>10#include <stdint.h>11 12__attribute__((noinline)) void foo(int index, int len) {13 volatile char str[len] __attribute__((aligned(32)));14 assert(!(reinterpret_cast<uintptr_t>(str) & 31L));15 char *q = (char *)__asan_region_is_poisoned((char *)str, 64);16 assert(q && ((q - str) == index));17}18 19int main(int argc, char **argv) {20 for (int i = 1; i < 33; ++i)21 foo(i, i);22 23 for (int i = 1; i < 33; ++i)24 foo(i, i);25 26 return 0;27}28