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authorKazu Hirata <kazu@cs.umass.edu>2005-01-17 06:44:05 +0000
committerKazu Hirata <kazu@gcc.gnu.org>2005-01-17 06:44:05 +0000
commit724e4d443ba36e51daed91d8b93b11053addf910 (patch)
tree35e78d2d4b3d6cadba5f70c71cc50d49cc21c4da /gcc/tree-ssa-dom.c
parent7f233d9f549b29a7fcd4f5b54b8dde438bcb5119 (diff)
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tree-ssa-dom.c (tree_ssa_dominator_optimize): Don't call mark_dfs_back_edges.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Don't call mark_dfs_back_edges. From-SVN: r93753
Diffstat (limited to 'gcc/tree-ssa-dom.c')
-rw-r--r--gcc/tree-ssa-dom.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c
index a969422..68bf4f9 100644
--- a/gcc/tree-ssa-dom.c
+++ b/gcc/tree-ssa-dom.c
@@ -374,11 +374,6 @@ tree_ssa_dominator_optimize (void)
for (i = 0; i < num_referenced_vars; i++)
var_ann (referenced_var (i))->current_def = NULL;
- /* Mark loop edges so we avoid threading across loop boundaries.
- This may result in transforming natural loop into irreducible
- region. */
- mark_dfs_back_edges ();
-
/* Create our hash tables. */
avail_exprs = htab_create (1024, real_avail_expr_hash, avail_expr_eq, free);
vrp_data = htab_create (ceil_log2 (num_ssa_names), vrp_hash, vrp_eq, free);