Fix a GET_MODE_CLASS typo in mem_loc_descriptor

It should have been checking the size instead.

gcc/
2016-11-15  Richard Sandiford  <richard.sandiford@arm.com>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

	* dwarf2out.c (mem_loc_descriptor): Fix GET_MODE_CLASS/
	GET_MODE_SIZE typo.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r242409

gcc/ChangeLog

+2016-11-15  Richard Sandiford  <richard.sandiford@arm.com>
+
+2016-11-15  Richard Sandiford  <richard.sandiford@arm.com>
+	    Alan Hayward  <alan.hayward@arm.com>
+	    David Sherwood  <david.sherwood@arm.com>
+
+	* dwarf2out.c (mem_loc_descriptor): Fix GET_MODE_CLASS/
+	GET_MODE_SIZE typo.
+
 2016-11-14  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* config/rs6000/rs6000.c (rs6000_expand_vector_set): Add support

gcc/dwarf2out.c

@@ -14976,7 +14976,7 @@ mem_loc_descriptor (rtx rtl, machine_mode mode,
       if ((!dwarf_strict || dwarf_version >= 5)
 	  && SCALAR_INT_MODE_P (mode))
 	{
-	  if (GET_MODE_CLASS (mode) > DWARF2_ADDR_SIZE)
+	  if (GET_MODE_SIZE (mode) > DWARF2_ADDR_SIZE)
 	    {
 	      op = DW_OP_div;
 	      goto do_binop;