From: Richard Henderson <rth@cygnus.com>
Date: Tue, 13 Jan 1998 21:40:27 +0000 (-0800)
Subject: * c-typeck.c (comptypes): Exit early on NULL input.
X-Git-Tag: releases/libf2c-0.5.21~202
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8d47dfc57f318e28e4e551633705b8d89899dec9;p=thirdparty%2Fgcc.git

* c-typeck.c (comptypes): Exit early on NULL input.

From-SVN: r17347
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1ac803a76218..ef5bb6347c2c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 Tue Jan 13 22:39:40 1998  Richard Henderson  (rth@cygnus.com)
 
+	* c-typeck.c (comptypes): Exit early on NULL input.
+
 	* haifa-sched.c (schedule_insns): Correctly remove inter-block
 	dependencies after reload.
 
diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 5bf265ac2083..fb5efd76bdba 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -441,7 +441,8 @@ comptypes (type1, type2)
 
   /* Suppress errors caused by previously reported errors.  */
 
-  if (t1 == t2 || TREE_CODE (t1) == ERROR_MARK || TREE_CODE (t2) == ERROR_MARK)
+  if (t1 == t2 || !t1 || !t2
+      || TREE_CODE (t1) == ERROR_MARK || TREE_CODE (t2) == ERROR_MARK)
     return 1;
 
   /* Treat an enum type as the integer type of the same width and