// RUN: %clangxx_asan %s -pthread -o %t
// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK0
+// RUN: %clangxx_asan -O3 %s -pthread -o %t
+// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
+// RUN: env ASAN_OPTIONS=detect_stack_use_after_return=0 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK0
// REQUIRES: stable-runtime
#include <assert.h>
#include <sanitizer/asan_interface.h>
static const int kNumThreads = 2;
+static const int kLeftRedzoneSize = sizeof(void *) * 4;
void *Thread(void *unused) {
void *fake_stack = __asan_get_current_fake_stack();
assert(real_stack);
assert((char*)beg <= (char*)&var[0]);
assert((char*)end > (char*)&var[0]);
- for (int i = -32; i < 15; i++) {
+ for (int i = -kLeftRedzoneSize; i < 15; i++) {
void *beg1, *end1;
char *ptr = &var[0] + i;
void *real_stack1 =