From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6340 invoked by alias); 5 Oct 2012 14:29:23 -0000 Received: (qmail 6284 invoked by uid 48); 5 Oct 2012 14:29:07 -0000 From: "glisse at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/54825] ICE with vector extension Date: Fri, 05 Oct 2012 14:29:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: glisse at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-10/txt/msg00431.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54825 --- Comment #8 from Marc Glisse 2012-10-05 14:29:07 UTC --- Hmm, how should I compile the code? I tried with g++ bug.cc -std=c++11 but that fails because of typeof (you want decltype instead). With -std=gnu++11, I get an error that "the last argument must be an 8-bit immediate" in __builtin_ia32_psrldqi128, which seems like a bug, but not the ICE reported here. Ah, if I remove the body of __sse2_recursion (and make it non-inline) and compile with -O2, then I get an ICE (but not with -O1) in tree-ssa-pre.c. Is that it? I'll look (but will probably have to defer to more knowledgeable people).