From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6E8B0383D838; Sat, 11 Jun 2022 23:20:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6E8B0383D838 From: "torvalds@linux-foundation.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/105930] Excessive stack spill generation on 32-bit x86 Date: Sat, 11 Jun 2022 23:20:57 +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: 12.1.1 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: torvalds@linux-foundation.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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Jun 2022 23:20:57 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105930 --- Comment #1 from Linus Torvalds --- Side note: it might be best to clarify that this is a regression specific to gcc-12. Gcc 11.3 doesn't have the problem, and generates code for this same test-ca= se with a stack frame of only 428 bytes. That's still bigger than clang, but n= ot "crazy bigger".=