1 /* { dg-do run } */
2 /* { dg-shouldfail "asan" } */
3 
4 #include <assert.h>
5 
6 volatile const int ten = 10;
7 
foo(int index,int len)8 __attribute__((noinline)) void foo(int index, int len) {
9   volatile char str[len] __attribute__((aligned(32)));
10   assert(!((long) str & 31L));
11   str[index] = '1'; // BOOM
12 }
13 
main(int argc,char ** argv)14 int main(int argc, char **argv) {
15   foo(-1, ten);
16   return 0;
17 }
18 
19 /* { dg-output "WRITE of size 1 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
20 /* { dg-output "    #0 0x\[0-9a-f\]+ +(in _*foo(\[^\n\r]*alloca_underflow_left.c:11|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
21 /* { dg-output "\[^\n\r]*Address 0x\[0-9a-f\]+ is located in stack of thread T0.*(\n|\r\n|\r)" */
22 /* { dg-output "\[^\n\r]*in foo.*alloca_underflow_left.c.*(\n|\r\n|\r)" */
23