From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 07D4D3858D26; Thu, 23 May 2024 05:17:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 07D4D3858D26 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1716441429; bh=94kZ2fxwIwOW8YFf3VfC2jg766gAj9DPckUlWpexBkc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=xqkvdLU9Xm1KedRTp0Zmw4FJxB0vrQG2TrDb0J/iXp1vzyv2nylv59WFDo6cjYeXO 7/drbt7zXfpcJPZO6qQjt45jIig/UYqAZcviaaNswWAIb6c7xiys+QdAg3Fa36IY0x YHSRRX8HXODZjh8THie15Y7N2sD98jxWgBKJip+k= From: "admin@tho-otto.de" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/115010] m68k: invalid subl instruction generated Date: Thu, 23 May 2024 05:17:08 +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: 14.1.0 X-Bugzilla-Keywords: assemble-failure, build X-Bugzilla-Severity: normal X-Bugzilla-Who: admin@tho-otto.de 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=3D115010 --- Comment #16 from Thorsten Otto --- Yes, i'm just curious what that "latent bug" might be. It might not have to do directly with that __builtin_mul_overflow() at all, because when using -m68060, library calls to __mulsi3() are used to avoid t= he 32x32 muls.l instruction which is not implemented on 060. That makes less registers available in the caller.=