tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Copy alias info.

2010-07-05 Richard Guenther <rguenther@suse.de> * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Copy alias info. From-SVN: r161841

tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Copy alias info.
2010-07-05 Richard Guenther <rguenther@suse.de> * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Copy alias info. From-SVN: r161841
bdf0f819 · Richard Guenther · Richard Biener · a41e5e86 · bdf0f819 · bdf0f819
Commit bdf0f819 authored 14 years ago by Richard Guenther Committed by Richard Biener 14 years ago
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gcc/ChangeLog
+5 -0

gcc/tree-ssa-loop-ivopts.c
+6 -2

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2010-07-05  Richard Guenther  <rguenther@suse.de>

+	* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Copy
+	alias info.
+
+2010-07-05  Richard Guenther  <rguenther@suse.de>
+
 	* tree.c (reference_alias_ptr_type): New function.
 	* tree.h (reference_alias_ptr_type): Declare.
 	* tree-ssa-loop-ivopts.c (copy_ref_info): Restructure to

--- a/gcc/tree-ssa-loop-ivopts.c
+++ b/gcc/tree-ssa-loop-ivopts.c
@@ -5486,8 +5486,12 @@ rewrite_use_nonlinear_expr (struct ivopts_data *data,
 	     to still.  */
 	  && (get_gimple_rhs_num_ops (TREE_CODE (comp))
 	      >= gimple_num_ops (gsi_stmt (bsi)))))
-    comp = force_gimple_operand_gsi (&bsi, comp, false, SSA_NAME_VAR (tgt),
-				     true, GSI_SAME_STMT);
+    {
+      comp = force_gimple_operand_gsi (&bsi, comp, true, NULL_TREE,
+				       true, GSI_SAME_STMT);
+      if (POINTER_TYPE_P (TREE_TYPE (tgt)))
+	duplicate_ssa_name_ptr_info (comp, SSA_NAME_PTR_INFO (tgt));
+    }

  if (gimple_code (use->stmt) == GIMPLE_PHI)
    {