1  /* { dg-do run } */
       2  /* { dg-shouldfail "asan" } */
       3  
       4  #include <assert.h>
       5  
       6  volatile const int ten = 10;
       7  
       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  
      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)" */