Add CompilerInstance, and starting moving clang-cc to it.

 - The design philosophy is in the CompilerInstance doxyment, if you don't agree
   with it now would be a good time to speak up.

llvm-svn: 87078

1 files changed, 25 insertions, 0 deletions

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
new file mode 100644
index 00000000000..e791f24ee80
--- /dev/null
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -0,0 +1,25 @@
+//===--- CompilerInstance.cpp ---------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/TargetInfo.h"
+#include "llvm/LLVMContext.h"
+using namespace clang;
+
+CompilerInstance::CompilerInstance(llvm::LLVMContext *_LLVMContext,
+                                   bool _OwnsLLVMContext)
+  : LLVMContext(_LLVMContext),
+    OwnsLLVMContext(_OwnsLLVMContext) {
+}
+
+CompilerInstance::~CompilerInstance() {
+  if (OwnsLLVMContext)
+    delete LLVMContext;
+}