gcc/testsuite/gcc.target/vax/ffshi.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-rtl-peephole2" } */
   3 /* { dg-skip-if "code quality test" { *-*-* } { "-O0" "-O1" } { "" } } */
   4
   5 typedef int __attribute__ ((mode (HI))) int_t;
   6
   7 int
   8 ffshi (int_t *x)
   9 {
  10   return __builtin_ffs (*x);
  11 }
  12
  13 /* Expect assembly like:
  14
  15         ffs $0,$16,*4(%ap),%r0
  16         jneq .L2
  17         mnegl $1,%r0
  18 .L2:
  19         incl %r0
  20
  21  */
  22
  23 /* { dg-final { scan-rtl-dump-times "Splitting with gen_peephole2" 1 "peephole2" } } */
  24 /* { dg-final { scan-assembler "\tffs \\\$0,\\\$16," } } */