c4x.c (dst_operand): New.

	* config/c4x/c4x.c (dst_operand): New.
	(PREDICATE_CODES): Update.
	* config/c4x/c4x.h (dst_operand): Declare it.
	* config/c4x/c4x.md:  Define mode for each unspec usage.
	(move patterns):  Use dst_operand predicate instead of src_operand.
	(movqi_update, movqf_update): Delete.

From-SVN: r29996

gcc/ChangeLog

+Fri Oct 15 17:27:17 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* config/c4x/c4x.c (dst_operand): New.
+	(PREDICATE_CODES): Update.
+	* config/c4x/c4x.h (dst_operand): Declare it.
+	* config/c4x/c4x.md:  Define mode for each unspec usage.
+	(move patterns):  Use dst_operand predicate instead of src_operand.
+	(movqi_update, movqf_update): Delete.
+
 Thu Oct 14 18:48:54 1999  Richard Henderson  <rth@cygnus.com>
 
 	* recog.c (pmode_register_operand): New.

gcc/config/c4x/c4x.c

@@ -3060,8 +3060,24 @@ symbolic_address_operand (op, mode)
 }
 
 
-/* Check src operand of two operand arithmetic instructions.  */
+/* Check dst operand of a move instruction.  */
+int
+dst_operand (op, mode)
+     rtx op;
+     enum machine_mode mode;
+{
+  if (GET_CODE (op) == SUBREG
+      && mixed_subreg_operand (op, mode))
+    return 0;
 
+  if (REG_P (op))
+    return reg_operand (op, mode);
+
+  return memory_operand (op, mode);
+}
+
+
+/* Check src operand of two operand arithmetic instructions.  */
 int
 src_operand (op, mode)
      rtx op;

gcc/config/c4x/c4x.h

@@ -2594,6 +2594,7 @@ if (final_sequence != NULL_RTX)		\
   {"st_reg_operand", {REG}},					\
   {"rc_reg_operand", {REG}},					\
   {"call_address_operand", {REG, SYMBOL_REF, LABEL_REF, CONST}}, \
+  {"dst_operand", {SUBREG, REG, MEM}}, \
   {"src_operand", {SUBREG, REG, MEM, CONST_INT, CONST_DOUBLE}}, \
   {"src_hi_operand", {SUBREG, REG, MEM, CONST_DOUBLE}}, 	\
   {"lsrc_operand", {SUBREG, REG, MEM, CONST_INT, CONST_DOUBLE}}, \
@@ -2674,6 +2675,8 @@ extern int ext_reg_operand ();
 
 extern int std_reg_operand ();
 
+extern int dst_operand ();
+
 extern int src_operand ();
 
 extern int src_hi_operand ();