From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 40E403858C66; Wed, 22 May 2024 00:05:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 40E403858C66 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1716336302; bh=rV/iasrOGbFSpXkidCqCTRAMAQy+JY/WTGDhvBfbSkE=; h=From:To:Subject:Date:In-Reply-To:References:From; b=btTuCcJUJlEdbxdk9vRUYKXlfz8anTZ4HQCvlffkC8ccKyTTNrN/LByslIcTMy+SC gUnTl0u2T6IlVOcozqsJbkCu4oFNw2qJN3Qi7lCiTg557cFwB7zNvrk1DWwloodYXV OowE6QrddP4bQL70692XcR7eo+JSgSYkiBaRwMhM= From: "olegendo at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/99531] [11 Regression] Performance regression since gcc 9 (argument passing / register allocation) Date: Wed, 22 May 2024 00:05:01 +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: 10.2.0 X-Bugzilla-Keywords: missed-optimization, ra X-Bugzilla-Severity: normal X-Bugzilla-Who: olegendo at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.5 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=3D99531 --- Comment #12 from Oleg Endo --- (In reply to Oleg Endo from comment #11) >=20 > This caused PR 115148 I absolutely lack the imagination to see the connection of the change in #c6 and PR 115148. This is the change in the output code that results in the problem on SH: .LVL108: bt/s .L178 ! mov #-1,r0 !, @@ -1832,36 +1830,39 @@ .byte .L215-.L190 .byte .L181-.L190 .LVL109: - .align 1 -.L192: .LBE111: .LBE110: .loc 1 234 9 .loc 1 234 14 + .align 1 +.L287: + .align 1 +.L288: Any ideas or suggestions are appreciated.=