| /* { dg-do compile } */ |
| /* { dg-options "-fdump-rtl-peephole2 -dp" } */ |
| /* { dg-skip-if "code quality test" { *-*-* } { "-O0" "-O1" } { "" } } */ |
| |
| typedef int __attribute__ ((mode (QI))) int_t; |
| |
| void |
| eq_ffsqi (int_t *w, int_t *x) |
| { |
| *w = __builtin_ffs (*x); |
| } |
| |
| /* Expect assembly like: |
| |
| ffs $0,$8,*8(%ap),%r1 # 40 [c=28] *ctzqi2_ccz |
| jneq .L2 # 30 [c=26] *branch_ccz |
| mnegl $1,%r1 # 26 [c=8] *negsi2 |
| .L2: |
| addb3 %r1,$1,*4(%ap) # 25 [c=32] *addqi3 |
| |
| */ |
| |
| /* { dg-final { scan-rtl-dump-times "Splitting with gen_peephole2" 1 "peephole2" } } */ |
| /* { dg-final { scan-assembler-not "\t(bit|cmpz?|tst). " } } */ |
| /* { dg-final { scan-assembler "ctzqi\[^ \]*_ccz(/\[0-9\]+)?\n" } } */ |
| /* { dg-final { scan-assembler "branch_ccz\n" } } */ |
