gcc/testsuite/gcc.dg/fold-cstvecshift.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-ccp1" } */
   3
   4 typedef int vec __attribute__ ((vector_size (4 * sizeof (int))));
   5
   6 void f (vec *r)
   7 {
   8   vec a = { 2, 3, 4, 5 };
   9   *r = (a << 2) >> 1;
  10 }
  11
  12 /* { dg-final { scan-tree-dump "{ 4, 6, 8, 10 }" "ccp1"} } */