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

From-SVN: r63224

gcc/ChangeLog

+2003-02-21  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* config/h8300/h8300.md (a peephole2): New.
+
 Fri Feb 21 11:05:44 CET 2003  Jan Hubicka  <jh@suse.cz>
 
 	* cfgrtl.c (commit_one_edge_insertion): Only mark BB for splitting.

gcc/config/h8300/h8300.md

@@ -3847,3 +3847,35 @@
 		      (pc)))]
   "operands[4] = gen_rtx_REG (HImode, REGNO (operands[0]));
    operands[5] = GEN_INT (trunc_int_for_mode (INTVAL (operands[1]), HImode));")
+
+(define_peephole2
+  [(set (match_operand:SI 0 "register_operand" "")
+	(and:SI (match_dup 0)
+		(match_operand:SI 1 "const_int_qi_operand" "")))
+   (set (match_dup 0)
+	(xor:SI (match_dup 0)
+		(match_operand:SI 2 "const_int_qi_operand" "")))
+   (set (cc0)
+	(match_dup 0))
+   (set (pc)
+	(if_then_else (match_operator 4 "eqne_operator"
+			[(cc0) (const_int 0)])
+		      (label_ref (match_operand 3 "" ""))
+		      (pc)))]
+  "peep2_reg_dead_p (3, operands[0])
+   && (~INTVAL (operands[1]) & INTVAL (operands[2])) == 0"
+  [(set (match_dup 5)
+	(and:QI (match_dup 5)
+		(match_dup 6)))
+   (set (match_dup 5)
+	(xor:QI (match_dup 5)
+		(match_dup 7)))
+   (set (cc0)
+	(match_dup 5))
+   (set (pc)
+	(if_then_else (match_op_dup 4 [(cc0) (const_int 0)])
+		      (label_ref (match_dup 3))
+		      (pc)))]
+  "operands[5] = gen_rtx_REG (QImode, REGNO (operands[0]));
+   operands[6] = GEN_INT (trunc_int_for_mode (INTVAL (operands[1]), QImode));
+   operands[7] = GEN_INT (trunc_int_for_mode (INTVAL (operands[2]), QImode));")