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gcc/gcc ChangeLog.tree-ssa tree-dfa.c tree-flow.h
- From: law at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: 20 Feb 2003 19:09:06 -0000
- Subject: gcc/gcc ChangeLog.tree-ssa tree-dfa.c tree-flow.h
CVSROOT: /cvs/gcc
Module name: gcc
Branch: tree-ssa-20020619-branch
Changes by: law at gcc dot gnu dot org 2003-02-20 19:09:06
Modified files:
gcc : ChangeLog.tree-ssa tree-dfa.c tree-flow.h
Log message:
* tree-dfa.c (INDIRECT_REFs and ADDRESSABLE_VARs varrays): Replace
with a single ALIASED_OBJECTs set of varrays.
(dump_dfa_stats): Corresponding changes.
(compute_may_aliases, dump_alias_info): Likewise.
(compute_alias_sets): Likesise. Update comments. Register
alias sets for all potentially aliased objects which are stored.
Check each potentially aliased object with the registered alias
sets.
(register_alias_set): If DEREF aliases a single registered _DECL,
then replace the _DECL's entry with DEREF.
(find_alias_for): Update comments. Do not stop the search when
an alias is found. There may be multiple entries with conflicting
alias sets.
(struct walk_state): New structure for statement walker callbacks.
(find_vars_r): Add logic to track loads and stores of potentially
aliased objects separately. Various changes related to
using a single set of varrays for all aliased objects.
(add_referenced_var): Record in the var's annotation if the
var is read or written. Various changes related to using a
single set of varrays for all the aliased objects.
(add_stmt_operand): Only set may_point_to_global_mem for INDIRECT_REFs.
* tree-flow.h (struct var_ann_d): Add new fields indicating if
the var is loaded or stored. Explicitly note unused bitfield
entries.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.239&r2=1.1.2.240
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.79&r2=1.1.4.80
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.57&r2=1.1.4.58