gcc/testsuite/gcc.target/i386/pr45903.c

   1 /* PR tree-optimization/45903 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 unsigned long long a, b;
   6 unsigned char c;
   7
   8 void
   9 f1 (void)
  10 {
  11   c = (a >> 8) + (b >> 8);
  12 }
  13
  14 void
  15 f2 (void)
  16 {
  17   c = (a >> 8) | (b >> 8);
  18 }
  19
  20 void
  21 f3 (void)
  22 {
  23   c = (a >> 16) ^ (b >> 56);
  24 }
  25
  26 unsigned char
  27 f4 (void)
  28 {
  29   return (a >> 48) + (b >> 40);
  30 }
  31
  32 unsigned char
  33 f5 (void)
  34 {
  35   return (a >> 32) | (b >> 16);
  36 }
  37
  38 unsigned char
  39 f6 (void)
  40 {
  41   return (a >> 24) ^ (b >> 32);
  42 }
  43
  44 /* { dg-final { scan-assembler-not "shr\[qdl\]" } } */