[prev in list] [next in list] [prev in thread] [next in thread]
List: gcc-bugs
Subject: [Bug middle-end/22156] [4.0/4.1/4.2 Regression] bit-field copying regressed
From: "aoliva at gcc dot gnu dot org" <gcc-bugzilla () gcc ! gnu ! org>
Date: 2007-04-30 17:41:24
Message-ID: 20070430174124.23537.qmail () sourceware ! org
[Download RAW message or body]
------- Comment #14 from aoliva at gcc dot gnu dot org 2007-04-30 18:41 -------
Subject: Bug 22156
Author: aoliva
Date: Mon Apr 30 18:41:11 2007
New Revision: 124302
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124302
Log:
PR middle-end/22156
Temporarily revert:
2007-04-06 Andreas Tobler <a.tobler@schweiz.org>
2007-04-05 Alexandre Oliva <aoliva@redhat.com>
* tree-sra.c (try_instantiate_multiple_fields): Needlessly
initialize align to silence bogus warning.
2007-04-05 Alexandre Oliva <aoliva@redhat.com>
* tree-sra.c (struct sra_elt): Add in_bitfld_block. Remove
all_no_warning.
(struct sra_walk_fns): Remove use_all parameter from use.
(sra_hash_tree): Handle BIT_FIELD_REFs.
(sra_elt_hash): Don't hash bitfld blocks.
(sra_elt_eq): Skip them in parent compares as well. Handle
BIT_FIELD_REFs.
(sra_walk_expr): Don't maintain or pass down use_all_p.
(scan_use): Remove use_all parameter.
(scalarize_use): Likewise. Re-expand assignment to
BIT_FIELD_REF of gimple_reg. De-scalarize before input or
output, and re-scalarize after output. Don't mark anything
for no warning.
(scalarize_ldst): Adjust.
(scalarize_walk_gimple_modify_statement): Likewise.
(build_element_name_1): Handle BIT_FIELD_REFs.
(instantiate_element): Don't warn for any element whose parent
is used as a whole.
(instantiate_missing_elements_1): Return the sra_elt.
(canon_type_for_field): New.
(try_instantiate_multiple_fields): New.
(instantiate_missing_elemnts): Use them.
(mark_no_warning): Removed.
(generate_one_element_ref): Handle BIT_FIELD_REFs.
(REPLDUP, sra_build_elt_assignment): New.
(generate_copy_inout): Use them.
(generate_element_copy): Likewise. Handle bitfld differences.
(generate_element_zero): Don't recurse for blocks. Use
sra_build_elt_assignment.
(generate_one_element_int): Take elt instead of var. Use
sra_build_elt_assignment.
(generate_element_init_1): Adjust.
(scalarize_use, scalarize_copy): Use REPLDUP.
(scalarize_ldst): Move assert before dereference.
(dump_sra_elt_name): Handle BIT_FIELD_REFs.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-sra.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22156
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic