gcc/testsuite/gcc.dg/pr57980.c

   1 /* PR tree-optimization/57980 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -foptimize-sibling-calls -w" } */
   4
   5 typedef int V __attribute__ ((vector_size (2 * sizeof (int))));
   6 extern V f (void);
   7
   8 V
   9 bar (void)
  10 {
  11   return -f ();
  12 }
  13
  14 V
  15 foo (void)
  16 {
  17   V v = { };
  18   return v - f ();
  19 }