From: Graham Stott <grahams@rcp.co.uk>
Date: Thu, 13 May 1999 00:57:05 +0000 (-0600)
Subject: loop.c (maybe_eliminate_biv): Check regno against max_reg_before_loop.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ab5193833ce054ed6066b02a25d8e5bac196d5c5;p=gcc.git

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
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6727dd59cc7..24c75b9cf64 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 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.
 
diff --git a/gcc/loop.c b/gcc/loop.c
index 55f52bf6c51..192461a934c 100644
--- a/gcc/loop.c
+++ b/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;
 		}