From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12636 invoked by alias); 27 May 2014 11:25:09 -0000 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 Received: (qmail 12610 invoked by uid 48); 27 May 2014 11:25:06 -0000 From: "ktietz at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/61207] Win64 gcc 4.9.0: ICE at -Os compiling some C++ code Date: Tue, 27 May 2014 11:25:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ktietz at gcc dot gnu.org X-Bugzilla-Status: NEW 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: bug_status cf_reconfirmed_on everconfirmed Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-05/txt/msg02314.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61207 Kai Tietz changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-05-27 Ever confirmed|0 |1 --- Comment #1 from Kai Tietz --- ICE happens in in expand_expr_addr_expr_1 because the result is (reg/v:TI 86 [ func ]), which is obviously no memory. Issue seems here to be that x64 ABI has pre-allocated stack-area on call, so for the first 4 arguments no stack-allocation is necessary. So we might need to specialize allocate_stack_slots_for_args-hook for this target.