From: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Tue, 26 Jan 2016 20:57:37 +0000 (+0000)
Subject: re PR rtl-optimization/69217 (ICE at var-tracking.c:5038 Segmentation fault)
X-Git-Tag: basepoints/gcc-7~1311
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3671c99673af214992ef23e4fd9a28ab2417f33a;p=thirdparty%2Fgcc.git

re PR rtl-optimization/69217 (ICE at var-tracking.c:5038 Segmentation fault)

	PR rtl-optimization/69217
	* var-tracking.c (tracked_record_parameter_p): Don't segfault if there
	are no TYPE_FIELDS set for the record type.

From-SVN: r232845
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd774bef2bd9..e94010a9cc56 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-01-26  Iain Buclaw  <ibuclaw@gdcproject.org>
+
+	PR rtl-optimization/69217
+	* var-tracking.c (tracked_record_parameter_p): Don't segfault if there
+	are no TYPE_FIELDS set for the record type.
+
 2016-01-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/68662
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index d044b7f989dd..9f09d30b1f91 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -5128,7 +5128,8 @@ tracked_record_parameter_p (tree t)
   if (TREE_CODE (type) != RECORD_TYPE)
     return false;
 
-  if (DECL_CHAIN (TYPE_FIELDS (type)) == NULL_TREE)
+  if (TYPE_FIELDS (type) == NULL_TREE
+      || DECL_CHAIN (TYPE_FIELDS (type)) == NULL_TREE)
     return false;
 
   return true;