nvptx.c (nvptx_assemble_undefined_decl): Check it's not a constant pool object.

	* config/nvptx/nvptx.c (nvptx_assemble_undefined_decl): Check
	it's not a constant pool object.

From-SVN: r232003

gcc/ChangeLog

+2015-12-30  Nathan Sidwell  <nathan@acm.org>
+
+	* config/nvptx/nvptx.c (nvptx_assemble_undefined_decl): Check
+	it's not a constant pool object.
+
 2015-12-29  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* config/rs6000/rs6000.c (init_float128_ieee): Remove IEEE 128-bit

gcc/config/nvptx/nvptx.c

@@ -1718,6 +1718,11 @@ nvptx_globalize_label (FILE *, const char *)
 static void
 nvptx_assemble_undefined_decl (FILE *file, const char *name, const_tree decl)
 {
+  /* The middle end can place constant pool decls into the varpool as
+     undefined.  Until that is fixed, catch the problem here.  */
+  if (DECL_IN_CONSTANT_POOL (decl))
+    return;
+
   write_var_marker (file, false, TREE_PUBLIC (decl), name);
 
   fprintf (file, "\t.extern ");