tree-sra.c (sra_explode_bitfield_assignment): Always call unsigned_type_for...

	* tree-sra.c (sra_explode_bitfield_assignment): Always
	call unsigned_type_for, if the precision is higher than
	needed, call build_nonstandard_integer_type.

From-SVN: r142483

gcc/ChangeLog

 2008-12-05  Jakub Jelinek  <jakub@redhat.com>
 
+	* tree-sra.c (sra_explode_bitfield_assignment): Always
+	call unsigned_type_for, if the precision is higher than
+	needed, call build_nonstandard_integer_type.
+
 	PR debug/38367
 	* function.c (assign_parm_find_stack_rtl): If promoted_mode
 	is wider than DECL_MODE, adjust MEM_OFFSET (stack_parm) for

gcc/tree-sra.c

@@ -3013,11 +3013,9 @@ sra_explode_bitfield_assignment (tree var, tree vpos, bool to_var,
 
 	  infld = fld->replacement;
 
-	  type = TREE_TYPE (infld);
+	  type = unsigned_type_for (TREE_TYPE (infld));
 	  if (TYPE_PRECISION (type) != TREE_INT_CST_LOW (flen))
-	    type = lang_hooks.types.type_for_size (TREE_INT_CST_LOW (flen), 1);
-	  else
-	    type = unsigned_type_for (type);
+	    type = build_nonstandard_integer_type (TREE_INT_CST_LOW (flen), 1);
 
 	  if (TREE_CODE (infld) == BIT_FIELD_REF)
 	    {