reload.c (find_equiv_reg): Checks all valueno and regno regs as a call-clobbered regs.

        * reload.c (find_equiv_reg): Checks all valueno and regno regs
        as a call-clobbered regs.

From-SVN: r33320

gcc/ChangeLog

+Fri Apr 21 14:58:29 2000  Denis Chertykov  <denisc@overta.ru>
+
+	* reload.c (find_equiv_reg): Checks all valueno and regno regs
+	as a call-clobbered regs.
+
 Fri Apr 21 13:30:26 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* rtl.c: Use NOTE_INSN_REPEATED_LINE_NUMBER and NOTE_INSN_RANGE_BEG.

gcc/reload.c

@@ -6160,16 +6160,23 @@ find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
 
       /* Don't trust the conversion past a function call
 	 if either of the two is in a call-clobbered register, or memory.  */
-      if (GET_CODE (p) == CALL_INSN
-	  && ((regno >= 0 && regno < FIRST_PSEUDO_REGISTER
-	       && call_used_regs[regno])
-	      ||
-	      (valueno >= 0 && valueno < FIRST_PSEUDO_REGISTER
-	       && call_used_regs[valueno])
-	      ||
-	      goal_mem
-	      || need_stable_sp))
-	return 0;
+      if (GET_CODE (p) == CALL_INSN)
+	{
+	  int i;
+	  
+	  if (goal_mem || need_stable_sp)
+	    return 0;
+	  
+	  if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER)
+	    for (i = 0; i < nregs; ++i)
+	      if (call_used_regs[regno + i])
+		return 0;
+
+	  if (valueno >= 0 && valueno < FIRST_PSEUDO_REGISTER)
+	    for (i = 0; i < valuenregs; ++i)
+	      if (call_used_regs[valueno + i])
+		return 0;
+	}
 
 #ifdef NON_SAVING_SETJMP
       if (NON_SAVING_SETJMP && GET_CODE (p) == NOTE