tree-into-ssa.c (REWRITE_THIS_STMT): Define.

	* tree-into-ssa.c (REWRITE_THIS_STMT): Define.
	(mark_def_sites): Clear REWRITE_THIS_STMT for statements that
	don't need any operands rewritten.
	(rewrite_stmt): Ignore statements that don't need to be
	rewritten.
	(rewrite_operand): Validate that an existing SSA_NAME is
	identical to the current reaching definition of the operand.


	* tree-dfa.c (mark_call_clobbered_vars_to_rename): New function.
	* tree-vectorizer.c (vectorizable_load): Call it.
	* tree-flow.h (mark_call_clobbered_vars_to_rename): Declare.
	* tree-sra.c (mark_all_v_defs): Also mark VUSEs for renaming.

From-SVN: r92010

1 files changed, 15 insertions, 0 deletions

diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c
index 90ff710..d7ccd69 100644
--- a/gcc/tree-dfa.c
+++ b/gcc/tree-dfa.c
@@ -1032,3 +1032,18 @@ find_new_referenced_vars (tree *stmt_p)
 {
   walk_tree (stmt_p, find_new_referenced_vars_1, NULL, NULL);
 }
+
+
+/* Mark all call-clobbered variables for renaming.  */
+
+void
+mark_call_clobbered_vars_to_rename (void)
+{
+  unsigned i;
+  bitmap_iterator bi;
+  EXECUTE_IF_SET_IN_BITMAP (call_clobbered_vars, 0, i, bi)
+    {
+      tree var = referenced_var (i);
+      bitmap_set_bit (vars_to_rename, var_ann (var)->uid);
+    }
+}