gcc/testsuite/gcc.dg/tree-ssa/pr94783.c

   1 /* PR tree-optimization/94783 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4 /* { dg-final { scan-tree-dump "ABS_EXPR" "optimized" } } */
   5 /* { dg-final { scan-tree-dump-not " >> 31" "optimized" } } */
   6
   7 int
   8 foo (int v)
   9 {
  10   int mask = v >> (__SIZEOF_INT__ * __CHAR_BIT__ - 1);
  11   return (v + mask) ^ mask;
  12 }