From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 71E9C3858D33; Tue, 25 Apr 2023 12:24:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 71E9C3858D33 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1682425496; bh=4JbesOeK/zwAwFvLcamAfkHborwkWEt0jvVU/YYFU1k=; h=From:To:Subject:Date:In-Reply-To:References:From; b=QET18PopY8a7lwJF0+Qd5W4QNE+PhO1C0tPMORY7/DBFc31JmSL+JmSHKWX/CuUR/ 1qEnhyhs467y1GHRenXF5iPF9wWGdo6j8jBfFTbSOwMn6ohZr7hakhri2YAQ7VlioR BfSW4F824kXZGsJMbTSFxhniASb0q2Y2wSdO1r8s= From: "segher at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/109566] [12/13/14 Regression] powerpc: unrecognizable insn for -mcpu=e6500, -mcpu=power3, ..., -mcpu=power10 Date: Tue, 25 Apr 2023 12:24:56 +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: 13.0 X-Bugzilla-Keywords: build, ice-on-valid-code 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: 13.0 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=3D109566 --- Comment #17 from Segher Boessenkool --- So, apparently powerpc-rtems uses -mpowerpc64 by default?! That is problematic, it changes the ABI, might not actually work at all (it requires your setjmp/longjmp and getcontext/setcontext to restore the full 64-bit registers), and is oft= en bigger and slower code (but not always). I suppose powerpc-rtems gets this from a default CPU choice?=