re PR target/24949 (FAIL: gcc.c-torture/compile/20000403-2.c -O0)

	PR target/24949
	* config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
	ashrdi_const, ashrdi3): Use a scratch register.

From-SVN: r113675

gcc/ChangeLog

+2006-05-10  Kazu Hirata  <kazu@codesourcery.com>
+
+	PR target/24949
+	* config/m68k/m68k.md (ashrdi_const32, ashrdi_const32_mem,
+	ashrdi_const, ashrdi3): Use a scratch register.
+
 2006-05-10  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/27302

gcc/config/m68k/m68k.md

@@ -4283,42 +4283,40 @@
 })
 
 (define_insn "ashrdi_const32"
-  [(set (match_operand:DI 0 "register_operand" "=d")
-	(ashiftrt:DI (match_operand:DI 1 "general_operand" "ro")
-		     (const_int 32)))]
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=d,o,<")
+	(ashiftrt:DI (match_operand:DI 1 "general_operand" "ro,ro,ro")
+		     (const_int 32)))
+   (clobber (match_scratch:SI 2 "=X,d,d"))]
   ""
 {
   CC_STATUS_INIT;
+  if (which_alternative == 0)
+    {
       operands[2] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1);
       if (TARGET_68020)
 	return "move%.l %1,%2\;smi %0\;extb%.l %0";
       else
 	return "move%.l %1,%2\;smi %0\;ext%.w %0\;ext%.l %0";
-})
-
-(define_insn "ashrdi_const32_mem"
-  [(set (match_operand:DI 0 "nonimmediate_operand" "=o,<")
-	(ashiftrt:DI (match_operand:DI 1 "general_operand" "ro,ro")
-		     (const_int 32)))
-   (clobber (match_scratch:SI 2 "=d,d"))]
-  ""
-{
-  CC_STATUS_INIT;
-  if (which_alternative == 1)
-    operands[3] = operands[0];
+    }
   else
+    {
+      if (which_alternative == 2)
+	operands[3] = operands[0];
+      else if (which_alternative == 1)
 	operands[3] = adjust_address (operands[0], SImode, 4);
       if (TARGET_68020)
 	return "move%.l %1,%3\;smi %2\;extb%.l %2\;move%.l %2,%0";
       else
 	return "move%.l %1,%3\;smi %2\;ext%.w %2\;ext%.l %2\;move%.l %2,%0";
+    }
 })
 
 ;; The predicate below must be general_operand, because ashrdi3 allows that
 (define_insn "ashrdi_const"
   [(set (match_operand:DI 0 "nonimmediate_operand" "=d")
 	(ashiftrt:DI (match_operand:DI 1 "general_operand" "0")
-		     (match_operand 2 "const_int_operand" "n")))]
+		     (match_operand 2 "const_int_operand" "n")))
+   (clobber (match_scratch:SI 3 "=X"))]
   "(!TARGET_COLDFIRE 
     && ((INTVAL (operands[2]) >= 1 && INTVAL (operands[2]) <= 3)
 	|| INTVAL (operands[2]) == 8 || INTVAL (operands[2]) == 16
@@ -4355,9 +4353,10 @@
 })
 
 (define_expand "ashrdi3"
-  [(set (match_operand:DI 0 "nonimmediate_operand" "")
+  [(parallel [(set (match_operand:DI 0 "nonimmediate_operand" "")
 		   (ashiftrt:DI (match_operand:DI 1 "general_operand" "")
-		     (match_operand 2 "const_int_operand" "")))]
+				(match_operand 2 "const_int_operand" "")))
+	      (clobber (match_scratch:SI 3 ""))])]
   "!TARGET_COLDFIRE"
   "
 {
@@ -4368,6 +4367,7 @@
 	  && INTVAL (operands[2]) != 8 && INTVAL (operands[2]) != 16
 	  && (INTVAL (operands[2]) < 31 || INTVAL (operands[2]) > 63)))
     FAIL;
+  operands[3] = gen_rtx_SCRATCH (SImode);
 } ")
 
 ;; On all 68k models, this makes faster code in a special case.