* loop.c (strength_reduce): Dump biv increment -> giv conversions.

From-SVN: r25250

gcc/ChangeLog

+Wed Feb 17 00:43:12 1999  J"orn Rennecke <amylaar@cygnus.co.uk>
+
+	* loop.c (strength_reduce): Dump biv increment -> giv conversions.
+
 Tue Feb 16 15:31:39 1999  Ovidiu Predescu  <ovidiu@cup.hp.com>
 
 	* objc/objc-act.c (encode_type): Encode the type instead of

gcc/loop.c

@@ -4260,6 +4260,11 @@ strength_reduce (scan_start, end, loop_top, insn_count,
 		 This will not prevent the biv from being eliminated.  */
 	      if (v->lifetime == 0)
 		v->ignore = 1;
+
+	      if (loop_dump_stream)
+		fprintf (loop_dump_stream,
+			 "Increment %d of biv %d converted to giv %d.\n\n",
+			 INSN_UID (v->insn), old_regno, new_regno);
 	    }
 	}
     }