From: Ted Kremenek <kremenek@apple.com>
Date: Mon, 29 Mar 2010 18:29:57 +0000 (+0000)
Subject: Change 'TypeCache' from being an std::map to a llvm::DenseMap.  This reduces codegen... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=590838badd46e0559a6b709857fb87530e546276;p=clang

Change 'TypeCache' from being an std::map to a llvm::DenseMap.  This reduces codegen time
on one .i file from 403.gcc by 0.5%.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99823 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 97e99ea1e0..d8a9f36c82 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1212,7 +1212,7 @@ llvm::DIType CGDebugInfo::getOrCreateType(QualType Ty,
   Ty = UnwrapTypeForDebugInfo(Ty);
   
   // Check for existing entry.
-  std::map<void *, llvm::WeakVH>::iterator it =
+  llvm::DenseMap<void *, llvm::WeakVH>::iterator it =
     TypeCache.find(Ty.getAsOpaquePtr());
   if (it != TypeCache.end()) {
     // Verify that the debug info still exists.
diff --git a/lib/CodeGen/CGDebugInfo.h b/lib/CodeGen/CGDebugInfo.h
index 47a4620483..3a9a4cc12b 100644
--- a/lib/CodeGen/CGDebugInfo.h
+++ b/lib/CodeGen/CGDebugInfo.h
@@ -53,7 +53,7 @@ class CGDebugInfo {
   
   /// TypeCache - Cache of previously constructed Types.
   // FIXME: Eliminate this map.  Be careful of iterator invalidation.
-  std::map<void *, llvm::WeakVH> TypeCache;
+  llvm::DenseMap<void *, llvm::WeakVH> TypeCache;
 
   bool BlockLiteralGenericSet;
   llvm::DIType BlockLiteralGeneric;