alloca_instruments_all_paddings.cpp
640 Bytes
// RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
// RUN: %clangxx_asan -O3 -mllvm -asan-instrument-dynamic-allocas %s -o %t
// RUN: %run %t 2>&1
//
#include "sanitizer/asan_interface.h"
#include <assert.h>
__attribute__((noinline)) void foo(int index, int len) {
volatile char str[len] __attribute__((aligned(32)));
assert(!(reinterpret_cast<long>(str) & 31L));
char *q = (char *)__asan_region_is_poisoned((char *)str, 64);
assert(q && ((q - str) == index));
}
int main(int argc, char **argv) {
for (int i = 1; i < 33; ++i)
foo(i, i);
for (int i = 1; i < 33; ++i)
foo(i, i);
return 0;
}