From 3ac4f0e6d01988a06968fbf268f6f7a00bafb672 Mon Sep 17 00:00:00 2001
From: Jason Merrill <merrill@gnu.org>
Date: Wed, 5 Oct 1994 23:08:12 +0000
Subject: [PATCH] (fold, COMPONENT_REF): Don't die if the CONSTRUCTOR        
 doesn't initialize the field we want.

From-SVN: r8223
---
 gcc/fold-const.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index e93516ebfcf..50217a08490 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -3424,7 +3424,11 @@ fold (expr)
 
     case COMPONENT_REF:
       if (TREE_CODE (arg0) == CONSTRUCTOR)
-	t = TREE_VALUE (purpose_member (arg1, CONSTRUCTOR_ELTS (arg0)));
+	{
+	  tree m = purpose_member (arg1, CONSTRUCTOR_ELTS (arg0));
+	  if (m)
+	    t = TREE_VALUE (m);
+	}
       return t;
 
     case RANGE_EXPR:
-- 
2.30.2