gcc/testsuite/gcc.dg/fold-notshift-2.c

   1 /* PR middle-end/55299 */
   2
   3 /* { dg-do compile } */
   4 /* { dg-options "-O -fdump-tree-cddce1" } */
   5
   6 unsigned int
   7 lsr (unsigned int a, unsigned int b)
   8 {
   9   return ~((~a) >> b);
  10 }
  11
  12 int
  13 sl (int a, int b)
  14 {
  15   return ~((~a) << b);
  16 }
  17
  18 typedef unsigned __INT32_TYPE__ uint32_t;
  19 typedef __INT64_TYPE__ int64_t;
  20
  21 int64_t
  22 asr_widen1 (uint32_t a, int b)
  23 {
  24   return ~((int64_t)(~a) >> b);
  25 }
  26
  27 int64_t
  28 asr_widen2 (uint32_t a, int b)
  29 {
  30   return ~(int64_t)(~a >> b);
  31 }
  32
  33 /* { dg-final { scan-tree-dump-times "~" 8 "cddce1" } } */