2008-10-16 Daniel Berlin <dberlin@dberlin.org>

	* tree-ssa-pre.c (phi_translate_set): Add constants to phi
	translation cache.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141182 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9fdf2c5..07b3b40 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-10-16  Daniel Berlin  <dberlin@dberlin.org>
+
+       * tree-ssa-pre.c (phi_translate_set): Add constants to phi
+       translation cache.
+
 2008-10-16  Joseph Myers  <joseph@codesourcery.com>
 
        PR c/33192

diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index 84c884b..f57500e 100644 (file)
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -1745,9 +1745,8 @@ phi_translate_set (bitmap_set_t dest, bitmap_set_t set, basic_block pred,
       pre_expr translated;
       translated = phi_translate (expr, set, NULL, pred, phiblock);
 
-      /* Don't add constants or empty translations to the cache, since
-        we won't look them up that way, or use the result, anyway.  */
-      if (translated && !value_id_constant_p (get_expr_value_id (translated)))
+      /* Don't add empty translations to the cache  */
+      if (translated)
        phi_trans_add (expr, translated, pred);
 
       if (translated != NULL)