From b340d2b8de4571dce424c3c53e8bcca26277fc13 Mon Sep 17 00:00:00 2001
From: Alexandre Oliva <aoliva@cygnus.com>
Date: Thu, 27 Apr 2000 15:49:20 +0000
Subject: [PATCH] mn10300.md (movhi): Simplify.

* config/mn10300/mn10300.md (movhi): Simplify.  Prefer data
registers.

From-SVN: r33489
---
 gcc/ChangeLog                 |  5 +++++
 gcc/config/mn10300/mn10300.md | 38 +++++++++++++----------------------
 2 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e309f7eea63..d33cd55e893 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Thu Apr 27 12:47:00 2000  Alexandre Oliva  <aoliva@cygnus.com>
+
+	* config/mn10300/mn10300.md (movhi): Simplify.  Prefer data
+	registers.
+
 Thu Apr 27 17:33:05 MET DST 2000  Jan Hubicka  <jh@suse.cz>
 
 	* function.c (epilogue_done): Pass whole insn to record_insns.
diff --git a/gcc/config/mn10300/mn10300.md b/gcc/config/mn10300/mn10300.md
index 12e809fdb86..c3a7d9c0b05 100644
--- a/gcc/config/mn10300/mn10300.md
+++ b/gcc/config/mn10300/mn10300.md
@@ -146,8 +146,8 @@
 }")
 
 (define_insn ""
-  [(set (match_operand:HI 0 "general_operand" "=dx,a,dx,a,dx,a,dx,a,dxa,m")
-	(match_operand:HI 1 "general_operand" "0,0,I,I,a,dx,dxi,ia,m,dxa"))]
+  [(set (match_operand:HI 0 "general_operand" "=d*x*a,d*x,d*x*a,d*x*a,m")
+	(match_operand:HI 1 "general_operand" "0,I,d*x*ai,m,d*x*a"))]
   "TARGET_AM33
    && (register_operand (operands[0], HImode)
        || register_operand (operands[1], HImode))"
@@ -156,15 +156,10 @@
   switch (which_alternative)
     {
     case 0:
-    case 1:
       return \"nop\";
-    case 2:
+    case 1:
       return \"clr %0\";
-    case 3:
-    case 4:
-    case 5:
-    case 6:
-    case 7:
+    case 2:
       if (GET_CODE (operands[1]) == CONST_DOUBLE)
 	{
 	  rtx xoperands[2];
@@ -184,18 +179,18 @@
 	    return \"movu %1,%0\";
 	}
       return \"mov %1,%0\";
-    case 8:
-    case 9:
+    case 3:
+    case 4:
       return \"movhu %1,%0\";
     default:
       abort ();
     }
 }"
-  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit")])
+  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])
 
 (define_insn ""
-  [(set (match_operand:HI 0 "general_operand" "=dx,*a,dx,*a,dx,*a,dx,*a,dx,m")
-	(match_operand:HI 1 "general_operand" "0,0,I,I,a,dx,dxi,ia,m,dx"))]
+  [(set (match_operand:HI 0 "general_operand" "=d*a,d,d*a,d,m")
+	(match_operand:HI 1 "general_operand" "0,I,dai,m,d"))]
   "register_operand (operands[0], HImode)
    || register_operand (operands[1], HImode)"
   "*
@@ -203,15 +198,10 @@
   switch (which_alternative)
     {
     case 0:
-    case 1:
       return \"nop\";
-    case 2:
+    case 1:
       return \"clr %0\";
-    case 3:
-    case 4:
-    case 5:
-    case 6:
-    case 7:
+    case 2:
       if (GET_CODE (operands[1]) == CONST_DOUBLE)
 	{
 	  rtx xoperands[2];
@@ -221,14 +211,14 @@
 	  return \"\";
 	}
       return \"mov %1,%0\";
-    case 8:
-    case 9:
+    case 3:
+    case 4:
       return \"movhu %1,%0\";
     default:
       abort ();
     }
 }"
-  [(set_attr "cc" "none,none,clobber,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit,none_0hit")])
+  [(set_attr "cc" "none,clobber,none_0hit,none_0hit,none_0hit")])
 
 ;; movsi and helpers