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authorKazu Hirata <kazu@cs.umass.edu>2005-03-02 19:12:55 +0000
committerKazu Hirata <kazu@gcc.gnu.org>2005-03-02 19:12:55 +0000
commit13396b14c0ef1eceba7f6e40b947d99b6cdbe387 (patch)
tree9a2c0b0d53466e0099e7eeebd71253f810eafb3c /gcc
parentadf4a335e37437dd870ed1fd9952d4014bd318af (diff)
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tree-ssa-dom.c (tree_ssa_dominator_optimize): Call free_dominance_info only when needed.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Call free_dominance_info only when needed. From-SVN: r95791
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog3
-rw-r--r--gcc/tree-ssa-dom.c3
2 files changed, 5 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d65dd24..e5e19cc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -5,6 +5,9 @@
(unchecked_make_edge, remove_edge, redirect_edge_succ,
redirect_edge_pred): Use the new functions.
+ * tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
+ free_dominance_info only when needed.
+
2005-03-02 David Edelsohn <edelsohn@gnu.org>
PR target/20276
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c
index 5216c3b..242de47 100644
--- a/gcc/tree-ssa-dom.c
+++ b/gcc/tree-ssa-dom.c
@@ -444,7 +444,8 @@ tree_ssa_dominator_optimize (void)
bitmap_zero (need_eh_cleanup);
}
- free_dominance_info (CDI_DOMINATORS);
+ if (cfg_altered)
+ free_dominance_info (CDI_DOMINATORS);
cfg_altered |= cleanup_tree_cfg ();
calculate_dominance_info (CDI_DOMINATORS);