nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused args.

	* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused
	args.
	(MOVE_MAX): Set to 8.

Co-Authored-By: Nathan Sidwell <nathan@acm.org>

From-SVN: r229610

gcc/ChangeLog

+2015-10-30  Jeff Law <jeff@redhat.com>
+	    Nathan Sidwell  <nathan@acm.org>
+
+	* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Avoid warning on unused
+	args.
+	(MOVE_MAX): Set to 8.
+
 2015-10-30  Cesar Philippidis  <cesar@codesourcery.com>
 
 	* cgraph.c: Include context.h for offloading.

gcc/config/nvptx/nvptx.h

@@ -88,7 +88,7 @@
 #define CALL_USED_REGISTERS				\
   { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
 
-#define HARD_REGNO_NREGS(regno, mode)	1
+#define HARD_REGNO_NREGS(regno, mode)	((void)(regno), (void)(mode), 1)
 #define CANNOT_CHANGE_MODE_CLASS(M1, M2, CLS) ((CLS) == RETURN_REG)
 #define HARD_REGNO_MODE_OK(REG, MODE) nvptx_hard_regno_mode_ok (REG, MODE)
 
@@ -356,7 +356,7 @@ struct GTY(()) machine_function
 #define FLOAT_STORE_FLAG_VALUE(MODE) REAL_VALUE_ATOF("1.0", (MODE))
 
 #define CASE_VECTOR_MODE SImode
-#define MOVE_MAX 4
+#define MOVE_MAX 8
 #define MOVE_RATIO(SPEED) 4
 #define TRULY_NOOP_TRUNCATION(outprec, inprec) 1
 #define FUNCTION_MODE QImode