nvptx.md (atomic_compare_and_swap<mode>_1, [...]): Input values can be immediates.

	* config/nvptx/nvptx.md (atomic_compare_and_swap<mode>_1,
	atomic_exchange<mode>): Input values can be immediates.

From-SVN: r230606

gcc/ChangeLog

+2015-11-19  Nathan Sidwell  <nathanacm.org>
+
+	* config/nvptx/nvptx.md (atomic_compare_and_swap<mode>_1,
+	atomic_exchange<mode>): Input values can be immediates.
+
 2015-11-19  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR lto/61313

gcc/config/nvptx/nvptx.md

@@ -1494,8 +1494,8 @@
   [(set (match_operand:SDIM 0 "nvptx_register_operand" "=R")
 	(unspec_volatile:SDIM
 	  [(match_operand:SDIM 1 "memory_operand" "+m")
-	   (match_operand:SDIM 2 "nvptx_register_operand" "R")
-	   (match_operand:SDIM 3 "nvptx_register_operand" "R")
+	   (match_operand:SDIM 2 "nvptx_nonmemory_operand" "Ri")
+	   (match_operand:SDIM 3 "nvptx_nonmemory_operand" "Ri")
 	   (match_operand:SI 4 "const_int_operand")]
 	  UNSPECV_CAS))
    (set (match_dup 1)
@@ -1510,7 +1510,7 @@
 	   (match_operand:SI 3 "const_int_operand")]		;; model
 	  UNSPECV_XCHG))
    (set (match_dup 1)
-	(match_operand:SDIM 2 "nvptx_register_operand" "R"))]	;; input
+	(match_operand:SDIM 2 "nvptx_nonmemory_operand" "Ri"))]	;; input
   ""
   "%.\\tatom%A1.exch.b%T0\\t%0, %1, %2;")