/* { 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" } } */