* config/h8300/h8300.md (a peephole2): New.

From-SVN: r62900

gcc/ChangeLog

+2003-02-14  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (*iorsi2_and_1_lshiftrt_1): New.
+
 2003-02-13  Adam Nemet  <anemet@lnxw.com>
+
         PR opt/2391 
         * combine.c: Fix spelling in comment.
         (cached_nonzero_bits): New function.

gcc/config/h8300/h8300.md

@@ -2878,6 +2878,17 @@
 		(match_dup 0)))]
   "operands[3] = gen_rtx_REG (HImode, REGNO (operands[2]));")
 
+(define_insn "*iorsi2_and_1_lshiftrt_1"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+	(ior:SI (and:SI (match_operand:SI 1 "register_operand" "0")
+			(const_int 1))
+		(lshiftrt:SI (match_dup 1)
+			     (const_int 1))))]
+  "TARGET_H8300H || TARGET_H8300S"
+  "shlr.l\\t%S0\;bor\\t#0,%w0\;bst\\t#0,%w0"
+  [(set_attr "length" "6")
+   (set_attr "cc" "clobber")])
+
 ;; Used to add the exponent of a float.
 
 (define_insn "*addsi3_shift"