tree-gimple.c (is_gimple_min_invariant): Treat constant vector CONSTRUCTORs as min invariants.

2006-12-20  Andrew Pinski  <pinskia@gmail.com>

        * tree-gimple.c (is_gimple_min_invariant): Treat constant vector
        CONSTRUCTORs as min invariants.

From-SVN: r120079

gcc/ChangeLog

+2006-12-20  Andrew Pinski  <pinskia@gmail.com>
+
+	* tree-gimple.c (is_gimple_min_invariant): Treat constant vector
+	CONSTRUCTORs as min invariants.
+
 2006-12-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* rtlanal.c (struct subreg_info, subreg_get_info, subreg_nregs):

gcc/tree-gimple.c

@@ -183,6 +183,13 @@ is_gimple_min_invariant (tree t)
     case VECTOR_CST:
       return true;
 
+    /* Vector constant constructors are gimple invariant.  */
+    case CONSTRUCTOR:
+      if (TREE_TYPE (t) && TREE_CODE (TREE_TYPE (t)) == VECTOR_TYPE)
+	return TREE_CONSTANT (t);
+      else
+	return false;
+
     default:
       return false;
     }