Make 'insn' argument of iq2000_cgen_insn_supported be const.

cpu/ChangeLog

@@ -1,3 +1,7 @@
+2004-05-15  Nick Clifton  <nickc@redhat.com>
+
+	* iq2000.opc (iq2000_cgen_insn_supported): Make 'insn' argument const.
+
 2004-03-30  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>
 
 	* m32r.opc (parse_hi16): Fixed shigh(0xffff8000) bug.

cpu/iq2000.opc

@@ -52,7 +52,7 @@
    instructions have same mnemonics but different functionality. */
 #define CGEN_VALIDATE_INSN_SUPPORTED
 
-extern int iq2000_cgen_insn_supported (CGEN_CPU_DESC cd, CGEN_INSN *insn);
+extern int iq2000_cgen_insn_supported (CGEN_CPU_DESC cd, const CGEN_INSN *insn);
 
 /* -- asm.c */
 static const char * parse_mimm PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
@@ -60,11 +60,11 @@ static const char * parse_imm  PARAMS ((CGEN_CPU_DESC, const char **, int, unsig
 static const char * parse_hi16 PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
 static const char * parse_lo16 PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 
-/* Special check to ensure that instruction exists for given machine */
+/* Special check to ensure that instruction exists for given machine.  */
 int
 iq2000_cgen_insn_supported (cd, insn)
      CGEN_CPU_DESC cd;
-     CGEN_INSN *insn;
+     const CGEN_INSN *insn;
 {
   int machs = cd->machs;