First step of implementing PR1538: move llvm2cpp logic to new 'target'

llvm-svn: 50189

1 files changed, 41 insertions, 0 deletions

diff --git a/llvm/lib/Target/CppBackend/CPPTargetMachine.h b/llvm/lib/Target/CppBackend/CPPTargetMachine.h
new file mode 100644
index 00000000000..4170cdf4e4f
--- /dev/null
+++ b/llvm/lib/Target/CppBackend/CPPTargetMachine.h
@@ -0,0 +1,41 @@
+//===-- CPPTargetMachine.h - TargetMachine for the C++ backend --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the TargetMachine that is used by the C++ backend.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CPPTARGETMACHINE_H
+#define CPPTARGETMACHINE_H
+
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetData.h"
+
+namespace llvm {
+
+struct CPPTargetMachine : public TargetMachine {
+  const TargetData DataLayout;       // Calculates type size & alignment
+
+  CPPTargetMachine(const Module &M, const std::string &FS)
+    : DataLayout(&M) {}
+
+  virtual bool WantsWholeFile() const { return true; }
+  virtual bool addPassesToEmitWholeFile(PassManager &PM, std::ostream &Out,
+                                        CodeGenFileType FileType, bool Fast);
+
+  // This class always works, but shouldn't be the default in most cases.
+  static unsigned getModuleMatchQuality(const Module &M) { return 1; }
+
+  virtual const TargetData *getTargetData() const { return &DataLayout; }
+};
+
+} // End llvm namespace
+
+
+#endif