gcc/testsuite/gcc.target/mips/bswap-5.c

   1 /* { dg-options "isa_rev>=2 -mgp64" } */
   2 /* { dg-skip-if "bswap recognition needs expensive optimizations" { *-*-* } { "-O0" "-O1" } { "" } } */
   3
   4 typedef unsigned long long uint64_t;
   5
   6 NOMIPS16 uint64_t
   7 foo (uint64_t x)
   8 {
   9   return (((x << 56) & 0xff00000000000000ull)
  10           | ((x << 40) & 0xff000000000000ull)
  11           | ((x << 24) & 0xff0000000000ull)
  12           | ((x << 8) & 0xff00000000ull)
  13           | ((x >> 8) & 0xff000000)
  14           | ((x >> 24) & 0xff0000)
  15           | ((x >> 40) & 0xff00)
  16           | ((x >> 56) & 0xff));
  17 }
  18
  19 /* { dg-final { scan-assembler "\tdsbh\t" } } */
  20 /* { dg-final { scan-assembler "\tdshd\t" } } */