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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/52080] Stores to bitfields introduce a store-data-race on adjacent data
Date: Wed, 14 Mar 2012 11:01:00 -0000 [thread overview]
Message-ID: <bug-52080-4-yxZWFcapxK@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-52080-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080
--- Comment #13 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-14 10:55:16 UTC ---
Author: rguenth
Date: Wed Mar 14 10:55:09 2012
New Revision: 185379
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185379
Log:
2012-03-14 Richard Guenther <rguenther@suse.de>
* tree.h (DECL_BIT_FIELD_REPRESENTATIVE): New define.
* stor-layout.c (start_bitfield_representative): New function.
(finish_bitfield_representative): Likewise.
(finish_bitfield_layout): Likewise.
(finish_record_layout): Call finish_bitfield_layout.
* tree.c (free_lang_data_in_decl): Only free DECL_QUALIFIER
for QUAL_UNION_TYPE fields.
* tree-streamer-in.c (lto_input_ts_field_decl_tree_pointers):
Stream DECL_BIT_FIELD_REPRESENTATIVE.
* tree-streamer-out.c (write_ts_field_decl_tree_pointers): Likewise.
PR middle-end/52080
PR middle-end/52097
PR middle-end/48124
* expr.c (get_bit_range): Unconditionally extract bitrange
from DECL_BIT_FIELD_REPRESENTATIVE.
(expand_assignment): Adjust call to get_bit_range.
* gcc.dg/torture/pr48124-1.c: New testcase.
* gcc.dg/torture/pr48124-2.c: Likewise.
* gcc.dg/torture/pr48124-3.c: Likewise.
* gcc.dg/torture/pr48124-4.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr48124-1.c
trunk/gcc/testsuite/gcc.dg/torture/pr48124-2.c
trunk/gcc/testsuite/gcc.dg/torture/pr48124-3.c
trunk/gcc/testsuite/gcc.dg/torture/pr48124-4.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/expr.c
trunk/gcc/stor-layout.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-streamer-in.c
trunk/gcc/tree-streamer-out.c
trunk/gcc/tree.c
trunk/gcc/tree.h
next prev parent reply other threads:[~2012-03-14 11:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-01 10:07 [Bug target/52080] New: " rguenth at gcc dot gnu.org
2012-02-01 10:23 ` [Bug target/52080] " rguenth at gcc dot gnu.org
2012-02-01 10:25 ` rguenth at gcc dot gnu.org
2012-02-01 10:39 ` rguenth at gcc dot gnu.org
2012-02-01 11:13 ` rguenth at gcc dot gnu.org
2012-02-01 17:12 ` ebotcazou at gcc dot gnu.org
2012-02-01 17:45 ` ebotcazou at gcc dot gnu.org
2012-02-01 17:50 ` matz at gcc dot gnu.org
2012-02-01 18:53 ` bergner at gcc dot gnu.org
2012-02-02 11:01 ` gcc-bugs at tesarici dot cz
2012-02-02 11:11 ` rguenth at gcc dot gnu.org
2012-02-02 12:40 ` gcc-bugs at tesarici dot cz
2012-02-21 12:04 ` rguenth at gcc dot gnu.org
2012-03-14 11:00 ` rguenth at gcc dot gnu.org
2012-03-14 11:01 ` rguenth at gcc dot gnu.org [this message]
2012-06-04 8:44 ` rguenth at gcc dot gnu.org
2013-02-19 20:37 ` LpSolit at netscape dot net
2014-02-16 13:17 ` jackie.rosen at hushmail dot com
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