From cdc30c457970d9876af28cdfe7e3a90d590e55ae Mon Sep 17 00:00:00 2001
From: Zdenek Dvorak <dvorakz@suse.cz>
Date: Tue, 25 Jul 2006 22:38:37 +0200
Subject: [PATCH] tree-chrec.c (chrec_convert_aggressive): Return NULL on
 failure.

	* tree-chrec.c (chrec_convert_aggressive): Return NULL on failure.

From-SVN: r115740
---
 gcc/ChangeLog    | 4 ++++
 gcc/tree-chrec.c | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 636ec2374723..80caad9edded 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2006-07-25  Zdenek Dvorak <dvorakz@suse.cz>
+
+	* tree-chrec.c (chrec_convert_aggressive): Return NULL on failure.
+
 2006-07-25  Nick Clifton  <nickc@redhat.com>
 
 	* ggc-page.c (NUM_SIZE_LOOKUP): New constant - the length of the
diff --git a/gcc/tree-chrec.c b/gcc/tree-chrec.c
index f9b804e61774..f36fc9b02918 100644
--- a/gcc/tree-chrec.c
+++ b/gcc/tree-chrec.c
@@ -1326,7 +1326,7 @@ chrec_convert_aggressive (tree type, tree chrec)
 
   /* If we cannot perform arithmetic in TYPE, avoid creating an scev.  */
   if (avoid_arithmetics_in_type_p (type))
-    return false;
+    return NULL_TREE;
 
   left = CHREC_LEFT (chrec);
   right = CHREC_RIGHT (chrec);