gcc/testsuite/gcc.dg/tree-ssa/pr82498.c

   1 /* PR target/82498 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-original" } */
   4 /* { dg-final { scan-tree-dump-times "x r<< y" 4 "original" { target int32 } } } */
   5 /* { dg-final { scan-tree-dump-times "x r>> y" 4 "original" { target int32 } } } */
   6
   7 unsigned
   8 f1 (unsigned x, int y)
   9 {
  10   return (x << y) | (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  11 }
  12
  13 unsigned
  14 f2 (unsigned x, int y)
  15 {
  16   return (x << y) | (x >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  17 }
  18
  19 unsigned
  20 f3 (unsigned x, int y)
  21 {
  22   return (x >> y) | (x << (__CHAR_BIT__ * __SIZEOF_INT__ - y));
  23 }
  24
  25 unsigned
  26 f4 (unsigned x, int y)
  27 {
  28   return (x >> y) | (x << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1)));
  29 }
  30
  31 unsigned
  32 f5 (unsigned x, int y)
  33 {
  34   return (x >> (__CHAR_BIT__ * __SIZEOF_INT__ - y)) | (x << y);
  35 }
  36
  37 unsigned
  38 f6 (unsigned x, int y)
  39 {
  40   return (x >> (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x << y);
  41 }
  42
  43 unsigned
  44 f7 (unsigned x, int y)
  45 {
  46   return (x << (__CHAR_BIT__ * __SIZEOF_INT__ - y)) | (x >> y);
  47 }
  48
  49 unsigned
  50 f8 (unsigned x, int y)
  51 {
  52   return (x << (-y & (__CHAR_BIT__ * __SIZEOF_INT__ - 1))) | (x >> y);
  53 }