From 5da4c0b85a97727e6802eaf3a0d47bcdb8da5f51 Mon Sep 17 00:00:00 2001
From: David Faust <david.faust@oracle.com>
Date: Tue, 15 Aug 2023 11:11:23 -0700
Subject: [PATCH] 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.
---
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 e0a42b9f9390..a64de1095eda 100644
--- 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")))]
--
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