From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C82FE3858D33; Sun, 8 Jan 2023 17:31:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C82FE3858D33 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1673199107; bh=D1F0YIRQBi/e+cy5bWnXFMG1gD09PaclgpU/s5NmRR8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=AIRlifWiPFEe/51FqHvvCm4H8aWhv2bKTVj2g6gKj/Mikt1syZr9tTx4kHxJ4hyDX 5klhbHJAaW3qE4qNEN6PGKY53klE/vNAcbzRcLtEB6R+PaDeSWWerVNh4kEkIln+B3 WhacjXvpLUwW5+kxBeuKXIn/bUMIEDUNvhtPhl9o= From: "segher at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/107949] PPC: Unnecessary rlwinm after lbzx Date: Sun, 08 Jan 2023 17:31:46 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 12.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: segher at gcc dot gnu.org X-Bugzilla-Status: NEW 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: cc 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=3D107949 Segher Boessenkool changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |segher at gcc dot gnu.org --- Comment #4 from Segher Boessenkool --- How would GCC know no extension is needed? The asm template is not parsed at all, by design. Making h1 an unsigned char might solve it here?=