h8300.md (*extzv_8_8): Use '?' to simplify the pattern.

	* config/h8300/h8300.md (*extzv_8_8): Use '?' to simplify the
	pattern.

From-SVN: r63755

gcc/ChangeLog

+2003-03-03  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (*extzv_8_8): Use '?' to simplify the
+	pattern.
+
 2003-03-03  Geoffrey Keating  <geoffk@apple.com>
 
 	* doc/install.texi (Specific): Update entry for powerpc-darwin.

gcc/config/h8300/h8300.md

@@ -2625,21 +2625,16 @@
 ;; extzv:SI
 
 (define_insn "*extzv_8_8"
-  [(set (match_operand:SI 0 "register_operand" "=r")
-	(zero_extract:SI (match_operand:SI 1 "register_operand" "r")
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
+	(zero_extract:SI (match_operand:SI 1 "register_operand" "?0,r")
 			 (const_int 8)
 			 (const_int 8)))]
   "TARGET_H8300H || TARGET_H8300S"
-  "*
-{
-  if (REG_P (operands[0]) && REG_P (operands[1])
-      && REGNO (operands[0]) != REGNO (operands[1]))
-    return \"sub.l\\t%S0,%S0\;mov.b\\t%x1,%w0\";
-  else
-    return \"mov.b\\t%x1,%w0\;extu.w\\t%f0\;extu.l\\t%S0\";
-}"
-  [(set_attr "cc" "set_znv")
-   (set_attr "length" "6")])
+  "@
+   mov.b\\t%x1,%w0\;extu.w\\t%f0\;extu.l\\t%S0
+   sub.l\\t%S0,%S0\;mov.b\\t%x1,%w0"
+  [(set_attr "cc" "clobber,set_znv")
+   (set_attr "length" "4,6")])
 
 (define_insn "*extzv_8_16"
   [(set (match_operand:SI 0 "register_operand" "=r")