| /* { 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_ctzqi (int_t *w, int_t *x) |
| { |
| int_t v; |
| |
| v = __builtin_ctz (*x); |
| if (*x == 0) |
| *w = v; |
| else |
| *w = v + 2; |
| } |
| |
| /* Expect assembly like: |
| |
| movb *8(%ap),%r1 # 34 [c=24] *movqi |
| ffs $0,$8,%r1,%r0 # 49 [c=4] *ctzqi2_ccz |
| jeql .L3 # 38 [c=26] *branch_ccz |
| addb2 $2,%r0 # 33 [c=32] *addqi3 |
| .L3: |
| |
| */ |
| |
| /* { dg-final { scan-rtl-dump-times "Splitting with gen_peephole2" 2 "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" } } */ |