From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1130) id 14CF2385B51B; Wed, 1 Feb 2023 09:54:08 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 14CF2385B51B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1675245248; bh=ecLI4rp2UI+bvYEUD83QAjJKSnfhQ+hBocrXGhoyXAM=; h=From:To:Subject:Date:From; b=Fj5P4y9qDVgdeRrzjqiOyzcElVqDyVHeKJ1Kt2+b6evDdN4TygDRYmR871g7x7vBM cV0LPp0/eNUlqoIgFWGWKwXIa1piTIArKEf4VudRN5wC4Knc4muRCStW5ZHLAY3Ln7 czMzhe78G01kNA0YEXvwqq3gsmeiBkg+orn9676k= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Richard Sandiford To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-5623] compare-elim: Fix an RTL checking failure X-Act-Checkin: gcc X-Git-Author: Richard Sandiford X-Git-Refname: refs/heads/trunk X-Git-Oldrev: f3b1af49702a3d1989fbe512b004a129f2c50e07 X-Git-Newrev: 3cef9dca57ba70576dc387c40e600f00de5d55de Message-Id: <20230201095408.14CF2385B51B@sourceware.org> Date: Wed, 1 Feb 2023 09:54:08 +0000 (GMT) List-Id: https://gcc.gnu.org/g:3cef9dca57ba70576dc387c40e600f00de5d55de commit r13-5623-g3cef9dca57ba70576dc387c40e600f00de5d55de Author: Richard Sandiford Date: Wed Feb 1 09:53:50 2023 +0000 compare-elim: Fix an RTL checking failure find_flags_uses_in_insn used SET_SRC without first checking for a SET. This showed up as an RTL checking failure in g++.dg/torture/pr90994.C on aarch64. gcc/ * compare-elim.cc (find_flags_uses_in_insn): Guard use of SET_SRC. Diff: --- gcc/compare-elim.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc index 5cbd2c027b1..c59dc0cf5a5 100644 --- a/gcc/compare-elim.cc +++ b/gcc/compare-elim.cc @@ -254,7 +254,8 @@ find_flags_uses_in_insn (struct comparison *cmp, rtx_insn *insn) x = PATTERN (insn); if (GET_CODE (x) == PARALLEL) x = XVECEXP (x, 0, 0); - x = SET_SRC (x); + if (GET_CODE (x) == SET) + x = SET_SRC (x); if (GET_CODE (x) == IF_THEN_ELSE) x = XEXP (x, 0); if (COMPARISON_P (x)