From 698138384e94bf315b4bc67481400ffab65e5f93 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 25 Aug 2010 20:22:53 +0000
Subject: [PATCH] Fix the bitcode reader to clear out function-specific state
 from MDValueList between each function, now that the bitcode writer is
 reusing the index space for function-local metadata.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112082 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Bitcode/Reader/BitcodeReader.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 63c85974e45..0d961c3ab91 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1636,6 +1636,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
 
   InstructionList.clear();
   unsigned ModuleValueListSize = ValueList.size();
+  unsigned ModuleMDValueListSize = MDValueList.size();
 
   // Add all the function arguments to the value table.
   for(Function::arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E; ++I)
@@ -2353,6 +2354,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
   
   // Trim the value list down to the size it was before we parsed this function.
   ValueList.shrinkTo(ModuleValueListSize);
+  MDValueList.shrinkTo(ModuleMDValueListSize);
   std::vector<BasicBlock*>().swap(FunctionBBs);
 
   return false;