re PR tree-optimization/65551 (FAIL: 26_numerics/complex/50880.cc execution test)

	PR tree-optimization/65551
	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Use
	TYPE_PRECISION only for INTEGRAL_TYPE_P types.

From-SVN: r221702

gcc/ChangeLog

+2015-03-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/65551
+	* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Use
+	TYPE_PRECISION only for INTEGRAL_TYPE_P types.
+
 2015-03-26  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/65555

gcc/tree-ssa-sccvn.c

@@ -1352,7 +1352,11 @@ fully_constant_vn_reference_p (vn_reference_t ref)
 	       || TYPE_PRECISION (ref->type) % BITS_PER_UNIT == 0))
     {
       HOST_WIDE_INT off = 0;
-      HOST_WIDE_INT size = TYPE_PRECISION (ref->type);
+      HOST_WIDE_INT size;
+      if (INTEGRAL_TYPE_P (ref->type))
+	size = TYPE_PRECISION (ref->type);
+      else
+	size = tree_to_shwi (TYPE_SIZE (ref->type));
       if (size % BITS_PER_UNIT != 0
 	  || size > MAX_BITSIZE_MODE_ANY_MODE)
 	return NULL_TREE;