From: Ted Kremenek <kremenek@apple.com>
Date: Sat, 17 Oct 2009 00:34:24 +0000 (+0000)
Subject: Add 'UseBumpPtrAllocator' flag to ASTUnit::LoadFromPCHFile() to cause the created... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5cf48766d626ff6b223acc9d4b7e415ca8480836;p=clang

Add 'UseBumpPtrAllocator' flag to ASTUnit::LoadFromPCHFile() to cause the created ASTContext to use
its own BumpPtrAllocator to allocate ASTs.

Change clang_createTranslationUnit (CIndex) to pass 'UseBumpPtrAllocator = true' to
ASTUnit::LoadFromPCHFile().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84296 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Frontend/ASTUnit.h b/include/clang/Frontend/ASTUnit.h
index 0ce473f2af..dd3db39343 100644
--- a/include/clang/Frontend/ASTUnit.h
+++ b/include/clang/Frontend/ASTUnit.h
@@ -88,7 +88,8 @@ public:
                                   Diagnostic &Diags,
                                   FileManager &FileMgr,
                                   std::string *ErrMsg = 0,
-                                  bool OnlyLocalDecls = false);
+                                  bool OnlyLocalDecls = false,
+                                  bool UseBumpAllocator = false);
 };
 
 } // namespace clang
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index 15002385a8..7ee6648699 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -95,7 +95,8 @@ ASTUnit *ASTUnit::LoadFromPCHFile(const std::string &Filename,
                                   Diagnostic &Diags,
                                   FileManager &FileMgr,
                                   std::string *ErrMsg,
-                                  bool OnlyLocalDecls) {
+                                  bool OnlyLocalDecls,
+                                  bool UseBumpAllocator) {
   llvm::OwningPtr<ASTUnit> AST(new ASTUnit(Diags));
   AST->OnlyLocalDecls = OnlyLocalDecls;
   AST->HeaderInfo.reset(new HeaderSearch(FileMgr));
@@ -146,7 +147,7 @@ ASTUnit *ASTUnit::LoadFromPCHFile(const std::string &Filename,
                                 PP.getIdentifierTable(),
                                 PP.getSelectorTable(),
                                 PP.getBuiltinInfo(),
-                                /* FreeMemory = */ true,
+                                /* FreeMemory = */ !UseBumpAllocator,
                                 /* size_reserve = */0));
   ASTContext &Context = *AST->Ctx.get();
 
diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index d0638d0772..d355025da9 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -323,7 +323,8 @@ CXTranslationUnit clang_createTranslationUnit(
   
   return ASTUnit::LoadFromPCHFile(astName, CXXIdx->getDiagnostics(),
                                   CXXIdx->getFileManager(), &ErrMsg,
-                                  CXXIdx->getOnlyLocalDecls());
+                                  CXXIdx->getOnlyLocalDecls(),
+                                  /* UseBumpAllocator = */ true);
 }
 
 CXTranslationUnit clang_createTranslationUnitFromSourceFile(