* config/m68hc11/m68hc11.md (SOFT_TMP_REGNUM): Define.

	(SOFT_XY_REGNUM): Define.
	(cmp split): Use the above instead of hard coded numbers.
	(8-bit op split): No need to check the mode; allow Q_REG.
	(ashift split): Adjust the first operand if it uses the SP and we
	are pushing the shifted value.
	(plus shift split): Fix when a source is in register D+X.
	("doloop_end"): Pass dummy arguments to gen_rtx_NE.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@78781 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index af21040..f8a1e26 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,16 @@
 2004-03-02  Stephane Carrez  <stcarrez@nerim.fr>
 
+       * config/m68hc11/m68hc11.md (SOFT_TMP_REGNUM): Define.
+       (SOFT_XY_REGNUM): Define.
+       (cmp split): Use the above instead of hard coded numbers.
+       (8-bit op split): No need to check the mode; allow Q_REG.
+       (ashift split): Adjust the first operand if it uses the SP and we
+       are pushing the shifted value.
+       (plus shift split): Fix when a source is in register D+X.
+       ("doloop_end"): Pass dummy arguments to gen_rtx_NE.
+
+2004-03-02  Stephane Carrez  <stcarrez@nerim.fr>
+
        * config/m68hc11/m68hc11.c (m68hc11_check_z_replacement): Fix when
        comparing with Z register.
 

diff --git a/gcc/config/m68hc11/m68hc11.md b/gcc/config/m68hc11/m68hc11.md
index deea231..335095e 100644 (file)
--- a/gcc/config/m68hc11/m68hc11.md
+++ b/gcc/config/m68hc11/m68hc11.md
@@ -144,7 +144,9 @@
    (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
+   (SOFT_TMP_REGNUM 10)         ; TMP soft register
+   (SOFT_Z_REGNUM   11)         ; Z soft register
+   (SOFT_XY_REGNUM  12)         ; XY soft register
 ])
 
 ;;--------------------------------------------------------------------
@@ -252,7 +254,7 @@
   [(set (cc0)
        (match_operand:QI 0 "tst_operand" "m"))
    (use (match_operand:HI 1 "hard_reg_operand" "dxy"))
-   (use (reg:HI 11))]
+   (use (reg:HI SOFT_Z_REGNUM))]
   ""
   "#")
 
@@ -937,9 +939,9 @@
 (define_split
   [(set (match_operand:QI 0 "hard_addr_reg_operand" "")
         (match_operand:QI 1 "general_operand" ""))]
-  "z_replacement_completed == 2 && GET_MODE (operands[0]) == QImode
+  "z_replacement_completed == 2
    && !reg_mentioned_p (operands[0], operands[1])
-   && !D_REG_P (operands[1])"
+   && !(D_REG_P (operands[1]) || Q_REG_P (operands[1]))"
   [(parallel [(set (reg:HI D_REGNUM) (match_dup 2))
               (set (match_dup 2) (reg:HI D_REGNUM))])
    (set (reg:QI D_REGNUM) (match_dup 1))
@@ -953,9 +955,9 @@
 (define_split
   [(set (match_operand:QI 0 "nonimmediate_operand" "")
         (match_operand:QI 1 "hard_addr_reg_operand" ""))]
-  "z_replacement_completed == 2 && GET_MODE (operands[1]) == QImode
+  "z_replacement_completed == 2
    && !reg_mentioned_p (operands[1], operands[0])
-   && !D_REG_P (operands[0])"
+   && !(D_REG_P (operands[0]) || Q_REG_P (operands[0]))"
   [(parallel [(set (reg:HI D_REGNUM) (match_dup 2))
               (set (match_dup 2) (reg:HI D_REGNUM))])
    (set (match_dup 0) (reg:QI D_REGNUM))
@@ -4443,6 +4445,13 @@
       {
          m68hc11_split_move (m68hc11_gen_lowpart (SImode, operands[0]),
                             const0_rtx, operands[2]);
+
+         /* Adjust first operand if it uses SP so that we take into
+            account the above push.  Can occur only for 68HC12.  */
+         if (reg_mentioned_p (gen_rtx (REG, HImode, HARD_SP_REGNUM),
+                             operands[1]))
+           operands[1] = adjust_address (operands[1],
+                                        GET_MODE (operands[0]), 4);
       }
     m68hc11_split_move (m68hc11_gen_highpart (SImode, operands[0]),
                        m68hc11_gen_lowpart (SImode, operands[1]),
@@ -4531,14 +4540,24 @@
                                (const_int 16))
                   (match_operand:SI 2 "general_operand" "")))]
   "z_replacement_completed == 2 && X_REG_P (operands[1])"
-  [(set (reg:HI D_REGNUM) (reg:HI X_REGNUM))
+  [(set (reg:HI D_REGNUM) (match_dup 5))
    (set (reg:HI X_REGNUM) (match_dup 3))
    (set (reg:HI D_REGNUM) (plus:HI (reg:HI D_REGNUM) (match_dup 4)))
    (set (reg:HI X_REGNUM) (plus:HI (plus:HI (reg:HI X_REGNUM)
                                            (const_int 0))
                                   (reg:HI CC_REGNUM)))]
   "operands[3] = m68hc11_gen_highpart (HImode, operands[2]);
-   operands[4] = m68hc11_gen_lowpart (HImode, operands[2]);")
+   if (X_REG_P (operands[2]))
+     {
+       operands[4] = gen_rtx (REG, HImode, HARD_X_REGNUM);
+       operands[5] = gen_rtx (REG, HImode, HARD_D_REGNUM);
+     }
+   else
+     {
+       operands[4] = m68hc11_gen_lowpart (HImode, operands[2]);
+       operands[5] = gen_rtx (REG, HImode, HARD_X_REGNUM);
+     }
+")
 
 (define_insn "addsi_ashift16"
   [(set (match_operand:SI 0 "register_operand" "=D")