OK. Thanks!
> This define_insn is never used, since a sign-extend to the same mode is > just a move, so delete it. > > Tested on x86_64-linux-gnu host for bpf-unknown-none target. > > gcc/ > > * config/bpf/bpf.md (extendsisi2): Delete useless define_insn. > --- > gcc/config/bpf/bpf.md | 7 ------- > 1 file changed, 7 deletions(-) > > diff --git a/gcc/config/bpf/bpf.md b/gcc/config/bpf/bpf.md > index e0a42b9f939..a64de1095ed 100644 > --- a/gcc/config/bpf/bpf.md > +++ b/gcc/config/bpf/bpf.md > @@ -350,13 +350,6 @@ (define_insn "extendqidi2" > {ldxsb\t%0,%1|%0 = *(s8 *) (%1)}" > [(set_attr "type" "alu,ldx")]) > > -(define_insn "extendsisi2" > - [(set (match_operand:SI 0 "register_operand" "=r") > - (sign_extend:SI (match_operand:SI 1 "register_operand" "r")))] > - "bpf_has_smov" > - "{movs32\t%0,%1,32|%w0 = (s32) %w1}" > - [(set_attr "type" "alu")]) > - > (define_insn "extendhisi2" > [(set (match_operand:SI 0 "register_operand" "=r") > (sign_extend:SI (match_operand:HI 1 "register_operand" "r")))]