From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14110 invoked by alias); 13 Dec 2008 22:10:47 -0000 Received: (qmail 13015 invoked by uid 48); 13 Dec 2008 22:09:21 -0000 Date: Sat, 13 Dec 2008 22:10:00 -0000 Message-ID: <20081213220921.13014.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug c++/37922] code generation error In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rwgk at yahoo dot com" 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: 2008-12/txt/msg01449.txt.bz2 ------- Comment #5 from rwgk at yahoo dot com 2008-12-13 22:09 ------- The bug is still present in svn revsion 140355 from last night. I ran an automatic search through the svn history. The result is that revision 129269 (svn log below) introduced the bug. Could someone please confirm the bug with the reproducer I posted last weekend? It should only take a second. ------------------------------------------------------------------------ r129269 | rsandifo | 2007-10-12 09:54:38 -0700 (Fri, 12 Oct 2007) | 14 lines gcc/ * dse.c (find_shift_sequence): Reinstate "<= UNITS_PER_WORD" condition. * var-tracking.c (micro_operation_def): Update comment on u.loc. (mode_for_reg_attrs, var_lowpart): New functions. (add_uses): Consider recording a lowpart of LOC for MO_USE. (add_stores): Likewise MO_SET and MO_COPY. If the source of a set or copy is known, set LOC to the SET that performs the set, instead of the destination. (find_src_status, find_src_set_src): Remove LOC parameter. Replace INSN with the source value. (compute_bb_dataflow, emit_notes_in_bb): Check for a SET u.loc when handling MO_SET and MO_COPY. Update the calls to find_src_status and find_src_set_src. ------------------------------------------------------------------------ -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37922