From 6209869f83979319e2e5791382f09b83e54191e0 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Wed, 2 Jun 2010 23:05:04 +0000
Subject: Speedup bitcode writer. Do not walk all values for all functions to
 emit function local metadata. In one testcase, probably worst case scenario,
 the 70x speed up is seen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105360 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Bitcode/Writer/ValueEnumerator.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lib/Bitcode/Writer/ValueEnumerator.h')

diff --git a/lib/Bitcode/Writer/ValueEnumerator.h b/lib/Bitcode/Writer/ValueEnumerator.h
index 4f8ebf55e1..2b9b15fa5a 100644
--- a/lib/Bitcode/Writer/ValueEnumerator.h
+++ b/lib/Bitcode/Writer/ValueEnumerator.h
@@ -15,6 +15,7 @@
 #define VALUE_ENUMERATOR_H
 
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
 #include "llvm/Attributes.h"
 #include <vector>
 
@@ -26,7 +27,7 @@ class Instruction;
 class BasicBlock;
 class Function;
 class Module;
-class MetadataBase;
+class MDNode;
 class NamedMDNode;
 class AttrListPtr;
 class TypeSymbolTable;
@@ -49,6 +50,7 @@ private:
   ValueMapType ValueMap;
   ValueList Values;
   ValueList MDValues;
+  SmallVector<const MDNode *, 8> FunctionLocalMDs;
   ValueMapType MDValueMap;
   
   typedef DenseMap<void*, unsigned> AttributeMapType;
@@ -105,6 +107,9 @@ public:
   
   const ValueList &getValues() const { return Values; }
   const ValueList &getMDValues() const { return MDValues; }
+  const SmallVector<const MDNode *, 8> &getFunctionLocalMDValues() const { 
+    return FunctionLocalMDs;
+  }
   const TypeList &getTypes() const { return Types; }
   const std::vector<const BasicBlock*> &getBasicBlocks() const {
     return BasicBlocks; 
-- 
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