| /* { dg-do compile } */ |
| /* { dg-options "-fdump-rtl-peephole2 -dp" } */ |
| /* { dg-skip-if "code quality test" { *-*-* } { "-O0" "-O1" } { "" } } */ |
| |
| typedef int __attribute__ ((mode (SI))) int_t; |
| |
| int_t |
| eq_ctzsi (int_t x) |
| { |
| int_t v; |
| |
| v = __builtin_ctz (x + 1); |
| if (v == 0) |
| return v; |
| else |
| return v + 2; |
| } |
| |
| /* Expect assembly like: |
| |
| addl3 4(%ap),$1,%r0 # 33 [c=40] *addsi3 |
| ffs $0,$32,%r0,%r0 # 34 [c=4] *ctzsi2 |
| tstl %r0 # 35 [c=6] *cmpsi_ccz/0 |
| jeql .L1 # 36 [c=26] *branch_ccz |
| addl2 $2,%r0 # 32 [c=32] *addsi3 |
| .L1: |
| |
| */ |
| |
| /* { dg-final { scan-rtl-dump-not "Splitting with gen_peephole2" "peephole2" } } */ |
| /* { dg-final { scan-assembler "\t(bit|cmpz?|tst). " } } */ |
| /* { dg-final { scan-assembler "cmpsi\[^ \]*_ccz(/\[0-9\]+)?\n" } } */ |
| /* { dg-final { scan-assembler "branch_ccz\n" } } */ |
