From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19799 invoked by alias); 19 Apr 2010 20:33:43 -0000 Received: (qmail 19346 invoked by uid 48); 19 Apr 2010 20:33:22 -0000 Date: Mon, 19 Apr 2010 20:33:00 -0000 Message-ID: <20100419203322.19345.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/43805] ICE when building Linux kernel 2.6.34-rc4 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "philpem at philpem dot me dot uk" 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: 2010-04/txt/msg01900.txt.bz2 ------- Comment #2 from philpem at philpem dot me dot uk 2010-04-19 20:33 ------- Admittedly removing -O2 does fix the ICE in this file, however a different source file (mm/filemap.c) causes a gcc ICE when it isn't built with -O2: mm/filemap.c: In function ‘do_generic_file_read’: mm/filemap.c:1171:1: error: unrecognizable insn: (insn 402 401 403 20 mm/filemap.c:1029 (set (reg:SI 389) (subreg:SI (mem/c/i:DI (plus:SI (reg/f:SI 33 virtual-stack-vars) (const_int -52 [0xffffffffffffffcc])) [0 isize+0 S8 A64]) 4)) -1 (nil)) mm/filemap.c:1171:1: internal compiler error: in extract_insn, at recog.c:2103 So removing -O2 is *not* a viable workaround. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43805