bpf: remove useless define_insn for extendsisi2

This define_insn is never used, since a sign-extend to the same mode is
just a move, so delete it.

gcc/

	* config/bpf/bpf.md (extendsisi2): Delete useless define_insn.

diff --git a/gcc/config/bpf/bpf.md b/gcc/config/bpf/bpf.md
index e0a42b9f9390c842f1e2ab7e2f877bb8e7ccf084..a64de1095eda3a9d55190843f7694468d114d11f 100644 (file)
--- a/gcc/config/bpf/bpf.md
+++ b/gcc/config/bpf/bpf.md
@@ -350,13 +350,6 @@
    {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")))]