predicates.md (zero_extend_operand): New predicate.

	* config/sh/predicates.md (zero_extend_operand): New predicate.
	* config/sh/sh.md (zero_extendhisi2): Simplify by using new
	zero_extend_operand predicate.
	(zero_extendqisi2): Likewise.

From-SVN: r189269

gcc/ChangeLog

+2012-07-04  Oleg Endo  <olegendo@gcc.gnu.org>
+
+	* config/sh/predicates.md (zero_extend_operand): New predicate.
+	* config/sh/sh.md (zero_extendhisi2): Simplify by using new
+	zero_extend_operand predicate.
+	(zero_extendqisi2): Likewise.
+
 2012-07-04  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR middle-end/53321

gcc/config/sh/predicates.md

@@ -368,6 +368,13 @@
 	  : nonimmediate_operand) (op, mode);
 })
 
+;; Returns 1 if the operand can be used in a zero_extend.
+(define_predicate "zero_extend_operand"
+  (ior (and (match_test "TARGET_SHMEDIA")
+	    (match_operand 0 "general_extend_operand"))
+       (and (match_test "! TARGET_SHMEDIA")
+	    (match_operand 0 "arith_reg_operand"))))
+
 ;; Returns 1 if OP can be source of a simple move operation. Same as
 ;; general_operand, but a LABEL_REF is valid, PRE_DEC is invalid as
 ;; are subregs of system registers.

gcc/config/sh/sh.md

@@ -4725,13 +4725,8 @@ label:
 	      (const_string "ignore")))])
 
 (define_expand "zero_extendhisi2"
-  [(set (match_operand:SI 0 "arith_reg_operand" "")
-	(zero_extend:SI (match_operand:HI 1 "general_extend_operand" "")))]
-  ""
-{
-  if (! TARGET_SHMEDIA && ! arith_reg_operand (operands[1], HImode))
-    operands[1] = copy_to_mode_reg (HImode, operands[1]);
-})
+  [(set (match_operand:SI 0 "arith_reg_dest" "")
+	(zero_extend:SI (match_operand:HI 1 "zero_extend_operand" "")))])
 
 (define_insn "*zero_extendhisi2_compact"
   [(set (match_operand:SI 0 "arith_reg_dest" "=r")
@@ -4770,13 +4765,8 @@ label:
 })
 
 (define_expand "zero_extendqisi2"
-  [(set (match_operand:SI 0 "arith_reg_operand" "")
-	(zero_extend:SI (match_operand:QI 1 "general_extend_operand" "")))]
-  ""
-{
-  if (! TARGET_SHMEDIA && ! arith_reg_operand (operands[1], QImode))
-    operands[1] = copy_to_mode_reg (QImode, operands[1]);
-})
+  [(set (match_operand:SI 0 "arith_reg_dest" "")
+	(zero_extend:SI (match_operand:QI 1 "zero_extend_operand" "")))])
 
 (define_insn "*zero_extendqisi2_compact"
   [(set (match_operand:SI 0 "arith_reg_dest" "=r")