------- Comment #4 from cvs-commit at gcc dot gnu dot org 2005-10-19 14:00 ------- Subject: Bug 24287
CVSROOT: /cvs/gcc
Module name: gcc
Branch: improved-aliasing-branch
Changes by: [EMAIL PROTECTED] 2005-10-19 14:00:53
Modified files:
gcc : ChangeLog.iab passes.c tree-dfa.c tree-flow.h
tree-ssa-alias.c tree-ssa-operands.c
tree-ssa-structalias.c
gcc/cp : ptree.c
Added files:
gcc/testsuite/gcc.dg/tree-ssa: pr24287.c
Log message:
2005-10-18 Daniel Berlin <[EMAIL PROTECTED]>
Fix PR tree-optimization/24287
* tree-dfa.c (dump_variable): Print reasons for call clobbering.
* tree-flow.h (struct ptr_info_def): Add escape mask to pointer.
(ESCAPE_TRANSITIVE): Removed.
(ESCAPE_TO_PURE_CONST): New.
(ESCAPE_IS_PARM): New.
(ESCAPE_UNKNOWN): New.
* tree-ssa-alias.c (set_initial_properties): Incoming pointers are
value escaping.
Pointers that point to anything are not.
Use pointer escape mask.
(is_escape_site): Use ESCAPE_TO_PURE_CONST.
* tree-ssa-operands.c (add_call_clobber_ops): Clean up a bit.
Things that *only* escape to pure/const functions are only read by
pure/const functions, and are not clobbered by the non-pure/const
functions.
(add_call_read_ops): Cleanup.
* tree-ssa-structalias.c (update_alias_info): Use pi->escape_mask,
not v_ann.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.iab.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=1.1.2.13&r2=1.1.2.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/passes.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.109.2.7&r2=2.109.2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.63.4.6&r2=2.63.4.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.132.2.8&r2=2.132.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-alias.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.109.4.11&r2=2.109.4.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-operands.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.100.4.7&r2=2.100.4.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-structalias.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=2.27.2.10&r2=2.27.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ptree.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=1.51&r2=1.51.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr24287.c.diff?cvsroot=gcc&only_with_tag=improved-aliasing-branch&r1=NONE&r2=1.1.2.1
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24287
