gcc/testsuite/gcc.dg/tree-ssa/pr52631.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-tree-forwprop -fdump-tree-fre1-details" } */
   3
   4 unsigned f(unsigned a)
   5 {
   6 #if __SIZEOF_INT__ == 2
   7   unsigned b = a >> 15;
   8 #else
   9   unsigned b = a >> 31;
  10 #endif
  11   return b&1;
  12 }
  13
  14 /* We want to verify that we replace the b & 1 with b.  */
  15 /* { dg-final { scan-tree-dump-times "Replaced b_\[0-9\]+ & 1 with b_\[0-9\]+ in" 1 "fre1"} } */
  16
  17