gcc/testsuite/gcc.target/mips/bswap-3.c

   1 /* { dg-options "isa_rev>=2" } */
   2 /* { dg-skip-if "bswap recognition needs expensive optimizations" { *-*-* } { "-O0" "-O1" } { "" } } */
   3
   4 NOMIPS16 unsigned int
   5 foo (unsigned int x)
   6 {
   7   return (((x << 24) & 0xff000000)
   8           | ((x << 8) & 0xff0000)
   9           | ((x >> 8) & 0xff00)
  10           | ((x >> 24) & 0xff));
  11 }
  12
  13 /* { dg-final { scan-assembler "\twsbh\t" } } */
  14 /* { dg-final { scan-assembler "\tror\t" } } */