From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23790 invoked by alias); 29 Mar 2011 16:23:42 -0000 Received: (qmail 23766 invoked by uid 22791); 29 Mar 2011 16:23:39 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 29 Mar 2011 16:23:31 +0000 From: "ibolton at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/48325] ICE in reload_cse_simplify_operands, at postreload.c:403 with neon optimized code X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ibolton 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-Changed-Fields: Status Last reconfirmed CC Ever Confirmed Known to fail 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 Date: Tue, 29 Mar 2011 16:37:00 -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 X-SW-Source: 2011-03/txt/msg03035.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48325 Ian Bolton changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.03.29 16:23:26 CC| |ibolton at gcc dot gnu.org Ever Confirmed|0 |1 Known to fail| |4.5.3, 4.7.0 --- Comment #2 from Ian Bolton 2011-03-29 16:23:26 UTC --- I get the same thing when I use r171282 of FSF 4.5 branch. arm-none-linux-gnueabi-gcc pr48325.c -mfloat-abi=softfp -mfpu=neon -O1 pr48325.c: In function 'test': pr48325.c:19:1: error: insn does not satisfy its constraints: (insn 40 38 26 2 /work/ianbol01/cross-build/gcc45-r171282-thumb/arm-none-linux-gnueabi/tools/lib/gcc/arm-none-linux-gnueabi/4.5.3/include/arm_neon.h:10277 (set (reg:OI 95 d16 [orig:152 __b ] [152]) (mem/s/c:OI (pre_dec:SI (reg/f:SI 3 r3 [151])) [0 __b+0 S32 A64])) 731 {*neon_movoi} (expr_list:REG_INC (reg/f:SI 3 r3 [151]) (nil))) pr48325.c:19:1: internal compiler error: in reload_cse_simplify_operands, at postreload.c:396 Here is the command-line just for cc1: cc1 -quiet pr48325.c -mfloat-abi=softfp -mfpu=neon -marm -mcpu=cortex-a9 -O1 Doesn't work for thumb either. It also fails on trunk. There are two other bugs in flight that manifest in reload_cse_simplify_operands: PR48250 (broke on trunk for EABI, works on 4.5 for EABI) and PR42949 (works on EABI for trunk and gcc4.5, broke for OABI). I do not know if they are duplicates of each other, or if there are two or more separate bugs causing this.