+
−/* { dg-do compile } */
+
−/* { dg-options "-O2" } */
+
−
+
−#include <errno.h>
+
−#include <stdlib.h>
+
−
+
−void do_not_optimize_away ();
+
−
+
−int main()
+
−{
+
−  void * volatile p;
+
−  errno = 0;
+
−  /* The malloc call below may cause a -Walloc-size-larger-than warning.  */
+
−  p = malloc (-1);
+
−  if (errno != 0)
+
−    do_not_optimize_away ();
+
−  return 0;
+
−}
+
−
+
−/* { dg-final { scan-assembler "do_not_optimize_away" } } */
+
−/* { dg-prune-output "exceeds maximum object size" } */