reload1.c (reload_reg_free_for_value_p): When considered reload has an output...

	* reload1.c (reload_reg_free_for_value_p): When considered reload
	has an output, matching inputs are not sufficient to avoid conflict.

From-SVN: r23687

gcc/ChangeLog

+Tue Nov 17 22:25:16 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* reload1.c (reload_reg_free_for_value_p): When considered reload
+	has an output, matching inputs are not sufficient to avoid conflict.
+
 Tue Nov 17 11:51:16 1998  Mark Mitchell  <mark@markmitchell.com>
 
 	* hash.h (hash_table_key): New type.

gcc/reload1.c

@@ -5152,7 +5152,7 @@ reload_reg_free_for_value_p (regno, opnum, type, value, out, reloadnum,
 	  && i != reloadnum)
 	{
 	  if (! reload_in[i] || ! rtx_equal_p (reload_in[i], value)
-	      || reload_out[i])
+	      || reload_out[i] || out)
 	    {
 	      int time2;
 	      switch (reload_when_needed[i])
@@ -5246,8 +5246,10 @@ reload_reg_free_for_value_p (regno, opnum, type, value, out, reloadnum,
 		default:
 		  return 0;
 		}
-	      if (time1 >= time2
-		  || (out && time2 >= MAX_RECOG_OPERANDS * 4 + 4))
+	      if ((time1 >= time2
+		   && (! reload_in[i] || reload_out[i]
+		       || ! rtx_equal_p (reload_in[i], value)))
+		  || (out && time2 >= MAX_RECOG_OPERANDS * 4 + 3))
 		return 0;
 	    }
 	}