From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id ED357385DC15; Fri, 8 Mar 2024 15:20:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ED357385DC15 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1709911249; bh=Y64lMlgBbM2hdVgE+r5XHxZgzH4uk5WsnWZycI93EOs=; h=From:To:Subject:Date:In-Reply-To:References:From; b=M9gufl3j1moh4mTXFMvqYZ7rbSpPFWyWHz90O/1U9wG17bfFmJl7h+XpMDg9BxuEB MTrOnXSWeWLfz/+NCFyLgPI9VvxsIuD5pb/A7SoSNiy5TvLQcAE1f0KHwtZXFN+DON jWBtRlc0UtQ8qIPHCSrL0Cy4FpVv55sNFcwAiBhg= From: "aoliva at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/114059] ICE in extract_insn, at recog.cc:2812 | sme2 vs -fsanitize=address -mtrack-speculation -fharden-control-flow-redundancy Date: Fri, 08 Mar 2024 15:20:48 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: aoliva at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114059 --- Comment #1 from Alexandre Oliva --- ISTM that -fharden-control-flow-redundancy is only instrumental to trigger = the latent problem, but the real problem is in the back end: aarch64_restore_za emits a aarch64_cbnedi1 unconditionally, but insn aarch64_cb1 = is disabled on aarch64_track_speculation, which the test uses.=