From 872814ae048df032bddf9299c850f5bda08299a9 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 21 Jul 2010 18:54:18 +0000
Subject: Disallow null as a named metadata operand. Make MDNode::destroy
 private. Fix the one thing that used MDNode::destroy, outside of MDNode
 itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AsmParser/LLParser.cpp | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'lib/AsmParser')

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 221b994..06229d7 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -546,12 +546,6 @@ bool LLParser::ParseNamedMetadata() {
   SmallVector<MDNode *, 8> Elts;
   if (Lex.getKind() != lltok::rbrace)
     do {
-      // Null is a special case since it is typeless.
-      if (EatIfPresent(lltok::kw_null)) {
-        Elts.push_back(0);
-        continue;
-      }
-
       if (ParseToken(lltok::exclaim, "Expected '!' here"))
         return true;
     
-- 
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