m68hc11.md (SOFT_Z_REGNUM): New constant.

	* config/m68hc11/m68hc11.md (SOFT_Z_REGNUM): New constant.
	("tstqi_z_used" split): Use it.
	("cmphi_z_used"): Likewise.
	("bitcmpqi_z_used"): Likewise; also use SP_REGNUM constant.
	("cmpqi_z_used"): Likewise.

From-SVN: r65522

gcc/ChangeLog

+2003-04-12  Stephane Carrez  <stcarrez@nerim.fr>
+
+	* config/m68hc11/m68hc11.md (SOFT_Z_REGNUM): New constant.
+	("tstqi_z_used" split): Use it.
+	("cmphi_z_used"): Likewise.
+	("bitcmpqi_z_used"): Likewise; also use SP_REGNUM constant.
+	("cmpqi_z_used"): Likewise.
+
 2003-04-12  Mark Mitchell  <mark@codesourcery.com>
 
 	PR c++/7910

gcc/config/m68hc11/m68hc11.md

@@ -143,6 +143,7 @@
    (A_REGNUM        5)		; A (high part of D)
    (B_REGNUM        6)		; B (low part of D)
    (CC_REGNUM       7)		; Condition code register
+   (SOFT_Z_REGNUM  11)          ; Z soft register
 ])
 
 ;;--------------------------------------------------------------------
@@ -258,7 +259,7 @@
   [(set (cc0)
 	(match_operand:QI 0 "tst_operand" ""))
    (use (match_operand:HI 1 "hard_reg_operand" ""))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   "z_replacement_completed == 2"
   [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNUM))) (match_dup 1))
    (set (match_dup 1) (match_dup 2))
@@ -365,7 +366,7 @@
 	(compare (match_operand:HI 0 "tst_operand" "dxy,m")
 		 (match_operand:HI 1 "cmp_operand" "m,dxy")))
    (use (match_operand:HI 2 "hard_reg_operand" "dxy,dxy"))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   ""
   "#")
   
@@ -374,7 +375,7 @@
 	(compare (match_operand:HI 0 "tst_operand" "")
 		 (match_operand:HI 1 "cmp_operand" "")))
    (use (match_operand:HI 2 "hard_reg_operand" ""))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   "z_replacement_completed == 2"
   [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNUM))) (match_dup 2))
    (set (match_dup 2) (match_dup 3))
@@ -456,7 +457,7 @@
 	(and:QI (match_operand:QI 0 "tst_operand" "d,m")
 		(match_operand:QI 1 "cmp_operand" "m,d")))
    (use (match_operand:HI 2 "hard_reg_operand" "xy,xy"))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   ""
   "#")
   
@@ -465,12 +466,12 @@
 	(and:QI (match_operand:QI 0 "tst_operand" "")
 		(match_operand:QI 1 "cmp_operand" "")))
    (use (match_operand:HI 2 "hard_reg_operand" ""))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   "z_replacement_completed == 2"
-  [(set (mem:HI (pre_dec:HI (reg:HI 3))) (match_dup 2))
+  [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNUM))) (match_dup 2))
    (set (match_dup 2) (match_dup 3))
    (set (cc0) (and:QI (match_dup 0) (match_dup 1)))
-   (set (match_dup 2) (mem:HI (post_inc:HI (reg:HI 3))))]
+   (set (match_dup 2) (mem:HI (post_inc:HI (reg:HI SP_REGNUM))))]
   "operands[3] = gen_rtx (REG, HImode, SOFT_Z_REGNUM);")
 
 (define_insn "bitcmphi"
@@ -546,7 +547,7 @@
 	(compare (match_operand:QI 0 "tst_operand" "dxy,m")
 		 (match_operand:QI 1 "cmp_operand" "m,dxy")))
    (use (match_operand:HI 2 "hard_reg_operand" "dxy,dxy"))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   ""
   "#")
   
@@ -555,7 +556,7 @@
 	(compare (match_operand:QI 0 "tst_operand" "")
 		 (match_operand:QI 1 "cmp_operand" "")))
    (use (match_operand:HI 2 "hard_reg_operand" ""))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   "z_replacement_completed == 2"
   [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNUM))) (match_dup 2))
    (set (match_dup 2) (match_dup 3))
@@ -620,7 +621,7 @@
 ;; because there is no memory->memory moves.  It must be defined with
 ;; earlyclobber (&) so that it does not appear in the source or destination 
 ;; address.  Providing patterns for movdi/movdf allows GCC to generate
-;; better code.  [Until now, the scratch register is limited to D becuse
+;; better code.  [Until now, the scratch register is limited to D because
 ;; otherwise we can run out of registers in the A_REGS class for reload].
 ;;
 ;; For 68HC12, the scratch register is not necessary.  To use the same