gcc/testsuite/gcc.dg/pr84710.c

   1 /* PR target/84710 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -fno-forward-propagate" } */
   4
   5 char a;
   6 int b;
   7
   8 void
   9 foo (void)
  10 {
  11   int d;
  12   b = __builtin_mul_overflow ((char) d, 0xfe, &a);
  13 }