From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22512 invoked by alias); 8 Nov 2011 12:17:18 -0000 Received: (qmail 22500 invoked by uid 22791); 8 Nov 2011 12:17:15 -0000 X-SWARE-Spam-Status: No, hits=-2.7 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,RP_MATCHES_RCVD,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Received: from mo11.iij4u.or.jp (HELO mo.iij4u.or.jp) (210.138.174.79) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 08 Nov 2011 12:16:58 +0000 Received: by mo.iij4u.or.jp (mo11) id pA8CGqUC020967; Tue, 8 Nov 2011 21:16:52 +0900 Received: from localhost (238.152.138.210.bn.2iij.net [210.138.152.238]) by mbox.iij4u.or.jp (mbox11) id pA8CGqBt003253; Tue, 8 Nov 2011 21:16:52 +0900 Date: Tue, 08 Nov 2011 12:38:00 -0000 Message-Id: <20111108.211651.151281633.kkojima@rr.iij4u.or.jp> To: joern.rennecke@embecosm.com Cc: gcc-patches@gcc.gnu.org Subject: RFT: Fix PR middle/end-40154 From: Kaz Kojima In-Reply-To: <00264351905752@mail.embecosm.com> References: <00264351905752@mail.embecosm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2011-11/txt/msg01171.txt.bz2 "joern.rennecke@embecosm.com" wrote: > This fixes the problem on the Epiphany, but I haven't tested if it also fixes it on > the SH - AAUI you'd have to back out a workaround first to properly test it. > > Bootstrapped powerpc64-unknown-linux-gnu. With the patch + reverting 148018 workaround, I've got a failure when building libgcc on SH. /exp/ldroot/dodes/xsh-gcc/./gcc/xgcc -B/exp/ldroot/dodes/xsh-gcc/./gcc/ -B/usr/local/sh4-unknown-linux-gnu/bin/ -B/usr/local/sh4-unknown-linux-gnu/lib/ -isystem /usr/local/sh4-unknown-linux-gnu/include -isystem /usr/local/sh4-unknown-linux-gnu/sys-include -g -O2 -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -mieee -mieee -DNO_FPSCR_VALUES -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -mieee -mieee -DNO_FPSCR_VALUES -I. -I. -I../.././gcc -I../../../LOCAL/trunk/libgcc -I../../../LOCAL/trunk/libgcc/. -I../../../LOCAL/trunk/libgcc/../gcc -I../../../LOCAL/trunk/libgcc/../include -DHAVE_CC_TLS -o _muldc3.o -MT _muldc3.o -MD -MP -MF _muldc3.dep -DL_muldc3 -c ../../../LOCAL/trunk/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS ../../../LOCAL/trunk/libgcc/libgcc2.c: In function '__muldc3': ../../../LOCAL/trunk/libgcc/libgcc2.c:1929:1: internal compiler error: in set_unique_reg_note, at emit-rtl.c:4960 #0 fancy_abort (file=0x8929248 "../../LOCAL/trunk/gcc/emit-rtl.c", line=4960, function=0x8928f44 "set_unique_reg_note") at ../../LOCAL/trunk/gcc/diagnostic.c:899 #1 0x0826dead in set_unique_reg_note (insn=0xb7fda120, kind=REG_EQUAL, datum=0xb7fd5aa4) at ../../LOCAL/trunk/gcc/emit-rtl.c:4960 #2 0x08486dc6 in find_reloads (insn=0xb7fa59fc, replace=1, ind_levels=0, live_known=1, reload_reg_p=0x8ad2660) at ../../LOCAL/trunk/gcc/reload.c:2866 #3 0x0849596f in reload_as_needed (live_known=1) at ../../LOCAL/trunk/gcc/reload1.c:4631 #4 0x08498422 in reload (first=0xb7f436a0, global=1) at ../../LOCAL/trunk/gcc/reload1.c:1058 (gdb) fr 1 #1 0x0826dead in set_unique_reg_note (insn=0xb7fda120, kind=REG_EQUAL, datum=0xb7fd5aa4) at ../../LOCAL/trunk/gcc/emit-rtl.c:4960 4960 gcc_assert (set); (gdb) call debug_rtx(insn) (insn 601 576 67 10 (use (reg/v:DF 219 [ a ])) ../../../LOCAL/trunk/libgcc/libgcc2.c:1892 -1 (nil)) (gdb) fr 2 #2 0x08486dc6 in find_reloads (insn=0xb7fa59fc, replace=1, ind_levels=0, live_known=1, reload_reg_p=0x8ad2660) at ../../LOCAL/trunk/gcc/reload.c:2866 2866 set_unique_reg_note (emit_insn_before (gen_rtx_USE (VOIDmode, reg), It seems that find_reloads calls set_unique_reg_note for a USE insn. Regards, kaz