From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 54FC2385841B; Tue, 22 Feb 2022 11:33:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 54FC2385841B From: "segher at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/103353] Indefinite recursion when compiling -mmma requiring testcase w/ -maltivec Date: Tue, 22 Feb 2022 11:33:44 +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: 12.0 X-Bugzilla-Keywords: error-recovery, ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: segher at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linkw 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: Tue, 22 Feb 2022 11:33:44 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103353 --- Comment #4 from Segher Boessenkool --- You miss all extra errors the expand_call can generate. This is the general reason why we try to continue instead of stopping after the first error. T= he reason is that later errors may be more obvious to the user. This of course does no longer work so well because our errors now take 30 lines instead of= 1. It probably is best if the generic opaque-mode emit_move code does not try to move it via some other mode_class. Peter? Failing that, we can work around it by having move patterns for those modes always, but hard erroring on them (FAIL is no good).=