From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E5E2B3858D37; Thu, 27 Apr 2023 17:26:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E5E2B3858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1682616409; bh=LdRn8nVOQUNSJnV/UM1Ckdp532MmWm1iC5Gx0dvkb6A=; h=From:To:Subject:Date:In-Reply-To:References:From; b=oJLtmliJgRnx9DApBX6MjTrBYFei0rmQscEvxYMT2VzkYbuyL0nG2/A4Cs7oX5ptD FL6Maos6V2TebMrhxhGhhIbYEqM/10+Qkc201LOs0i06rBojrCNKk4RQRRgSkBENZy AI97bI5e1ocrDUIMwNq9P0MD0JFRNCHuJZVfc/IQ= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/109650] avr-gcc incorrect code with -Os Date: Thu, 27 Apr 2023 17:26:49 +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: 12.2.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia 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=3D109650 --- Comment #1 from Andrew Pinski --- x86_64 prints (with a simple: `#define uart_putc __builtin_putchar`): ``` 0123456789 0 ?????????? 1 XXXXXXXXX? 2 XXXXXXXXX? 3 XXXXXXX??? 4 XXXXXXX??? 5 XXXXX????? 6 XXXXX????? 7 XXX??????? 8 ?????????? ``` Which I think is the correct output=