1  /* Turn the truncate,zero_extend,lshiftrt sequence before the or into a
       2     zero_extract.  The truncate is due to TARGET_PROMOTE_PROTOTYPES, the
       3     zero_extend to PROMOTE_MODE.  As of GCC 6, we no longer define
       4     TARGET_PROMOTE_PROTOTYPES so that truncate is gone and we can
       5     generate either a single extract or a single shift instruction.  */
       6  /* { dg-do compile } */
       7  /* { dg-options "isa_rev>=2 -mgp64 -mlong64" } */
       8  /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
       9  /* { dg-final { scan-assembler-times "\tdext\t|\td?srl" 1 } } */
      10  /* { dg-final { scan-assembler-not "\tand" } } */
      11  
      12  NOMIPS16 void
      13  f (unsigned char x, unsigned char *r)
      14  {
      15    *r = 0x50 | (x >> 4);
      16  }