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authordberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>2006-02-20 13:38:01 +0000
committerdberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>2006-02-20 13:38:01 +0000
commitabd433a73a0d509e9769dfb35dd2af57edc1ca48 (patch)
tree16d20e32d96535b3c2b5c91db8c2382c5b3fb541 /gcc/tree-ssa-forwprop.c
parent1ed004b714e2f2f646040e6fde2100dbe1f79e1d (diff)
downloadgcc-abd433a73a0d509e9769dfb35dd2af57edc1ca48.tar.gz
2006-02-20 Daniel Berlin <dberlin@dberlin.org>
* tree.h (struct tree_memory_tag): Add is_used_alone member. (TMT_USED_ALONE): New macro. * tree-pass.h (PROP_tmt_usage): New property. (TODO_update_tmt_usage): New todo. * tree-ssa-alias.c (updating_used_alone): New variable. (recalculate_used_alone): New function. (compute_may_aliases): Set updating_used_alone, call recalculate_used_alone. * tree-sra.c (pass_sra): Note that this pass destroys PROP_tmt_usage, and add TODO_update_tmt_usage. * tree-ssa-forwprop.c (pass_forwprop): Ditto. * tree-flow.h (updating_used_alone): Prototype. (recalculate_used_alone): Ditto. * passes.c (execute_todo): Add code to set updating_used_alone, and call recalculate. * tree-ssa-operands.c (add_virtual_operand): Only append bare def for clobber if used alone, and add assert to verify used_alone status. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111300 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-forwprop.c')
-rw-r--r--gcc/tree-ssa-forwprop.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c
index 892edde7a36..bcd4a13a4e3 100644
--- a/gcc/tree-ssa-forwprop.c
+++ b/gcc/tree-ssa-forwprop.c
@@ -1011,9 +1011,10 @@ struct tree_opt_pass pass_forwprop = {
PROP_cfg | PROP_ssa
| PROP_alias, /* properties_required */
0, /* properties_provided */
- 0, /* properties_destroyed */
+ PROP_tmt_usage, /* properties_destroyed */
0, /* todo_flags_start */
- TODO_dump_func | TODO_ggc_collect /* todo_flags_finish */
+ TODO_update_tmt_usage |TODO_dump_func /* todo_flags_finish */
+ | TODO_ggc_collect
| TODO_update_ssa | TODO_verify_ssa,
0 /* letter */
};