loop.c (maybe_eliminate_biv): Check regno against max_reg_before_loop.

        * loop.c (maybe_eliminate_biv): Check regno against
        max_reg_before_loop.

From-SVN: r26918

gcc/ChangeLog

 Thu May 13 01:49:55 1999  Graham Stott <GrahamS@RCP.co.uk>
 
+        * loop.c (maybe_eliminate_biv): Check regno against
+        max_reg_before_loop.
+
 	* i386.c (memory_address_info): Correct the scale
 	factor test.
 

gcc/loop.c

@@ -8131,7 +8131,8 @@ maybe_eliminate_biv (bl, loop_start, end, eliminate_p, threshold, insn_count)
 		{
 		  int regno = REGNO (SET_DEST (set));
 
-		  if (REG_IV_TYPE (regno) == GENERAL_INDUCT
+		  if (regno < max_reg_before_loop
+		      && REG_IV_TYPE (regno) == GENERAL_INDUCT
 		      && REG_IV_INFO (regno)->src_reg == bl->biv->src_reg)
 		    p = last;
 		}