1 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t
2 // RUN: not %run %t 2>&1 | FileCheck %s
3 //
4 
5 #include <assert.h>
6 
foo(int index,int len)7 __attribute__((noinline)) void foo(int index, int len) {
8   volatile char str[len] __attribute__((aligned(128)));
9   assert(!(reinterpret_cast<long>(str) & 127L));
10   str[index] = '1'; // BOOM
11 // CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
12 // CHECK: WRITE of size 1 at [[ADDR]] thread T0
13 }
14 
main(int argc,char ** argv)15 int main(int argc, char **argv) {
16   foo(10, 10);
17   return 0;
18 }
19