[AVR] Add AVRMCTargetDesc.cpp

[dylanmckay]

Summary

This adds the AVRMCTargetDesc file in tree. It allows creation of the
core classes used in the backend.

[kparzysz]

lib/Target/AVR/MCTargetDesc/AVRMCTargetDesc.cpp

34

This is not needed. The static functions are local to this file and the external function has C linkage.

[dylanmckay]

Remove redundant LLVM namespace

[dylanmckay]

Remove redundant LLVM namespace

[dylanmckay]

Ignore the first updated diff, I had a hicup with arcanist and git-svn

lib/Target/AVR/MCTargetDesc/AVRMCTargetDesc.cpp

36

Nice catch

lib/Target/AVR/MCTargetDesc/AVRMCTargetDesc.cpp

+//===-- AVRMCTargetDesc.cpp - AVR Target Descriptions ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides AVR specific target descriptions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "AVRELFStreamer.h"
+#include "AVRMCAsmInfo.h"
+#include "AVRMCTargetDesc.h"
+#include "AVRTargetStreamer.h"
+
+#include "llvm/MC/MCELFStreamer.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Support/TargetRegistry.h"
+
+#define GET_INSTRINFO_MC_DESC
+#include "AVRGenInstrInfo.inc"
+
+#define GET_SUBTARGETINFO_MC_DESC
+#include "AVRGenSubtargetInfo.inc"
+
+#define GET_REGINFO_MC_DESC
+#include "AVRGenRegisterInfo.inc"
+
+namespace llvm {
+
+static MCInstrInfo *createAVRMCInstrInfo() {
+  MCInstrInfo *X = new MCInstrInfo();
+  InitAVRMCInstrInfo(X);
+
+  return X;
+}
+
+static MCRegisterInfo *createAVRMCRegisterInfo(const Triple &TT) {
+  MCRegisterInfo *X = new MCRegisterInfo();
+  InitAVRMCRegisterInfo(X, 0);
+
+  return X;
+}
+
+static MCSubtargetInfo *createAVRMCSubtargetInfo(const Triple &TT,
+                                                 StringRef CPU, StringRef FS) {
+  return createAVRMCSubtargetInfoImpl(TT, CPU, FS);
+}
+
+static MCStreamer *createMCStreamer(const Triple &T, MCContext &Context,
+                                    MCAsmBackend &MAB, raw_pwrite_stream &OS,
+                                    MCCodeEmitter *Emitter, bool RelaxAll) {
+  return createELFStreamer(Context, MAB, OS, Emitter, RelaxAll);
+}
+
+static MCTargetStreamer *
+createAVRObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
+  return new AVRELFStreamer(S, STI);
+}
+
+static MCTargetStreamer *createMCAsmTargetStreamer(MCStreamer &S,
+                                                   formatted_raw_ostream &OS,
+                                                   MCInstPrinter *InstPrint,
+                                                   bool isVerboseAsm) {
+  return new AVRTargetAsmStreamer(S);
+}
+
+extern "C" void LLVMInitializeAVRTargetMC() {
+  // Register the MC asm info.
+  RegisterMCAsmInfo<AVRMCAsmInfo> X(TheAVRTarget);
+
+  // Register the MC instruction info.
+  TargetRegistry::RegisterMCInstrInfo(TheAVRTarget, createAVRMCInstrInfo);
+
+  // Register the MC register info.
+  TargetRegistry::RegisterMCRegInfo(TheAVRTarget, createAVRMCRegisterInfo);
+
+  // Register the MC subtarget info.
+  TargetRegistry::RegisterMCSubtargetInfo(TheAVRTarget,
+                                          createAVRMCSubtargetInfo);
+
+  // Register the ELF streamer
+  TargetRegistry::RegisterELFStreamer(TheAVRTarget, createMCStreamer);
+
+  // Register the obj target streamer.
+  TargetRegistry::RegisterObjectTargetStreamer(TheAVRTarget,
+                                               createAVRObjectTargetStreamer);
+
+  // Register the asm target streamer.
+  TargetRegistry::RegisterAsmTargetStreamer(TheAVRTarget,
+                                            createMCAsmTargetStreamer);
+}
+
+} // end of namespace llvm
+

lib/Target/AVR/MCTargetDesc/CMakeLists.txt

 add_llvm_library(LLVMAVRDesc
   AVRELFStreamer.cpp
   AVRMCAsmInfo.cpp
   AVRMCExpr.cpp
+  AVRMCTargetDesc.cpp
   AVRTargetStreamer.cpp
 )
 
 add_dependencies(LLVMAVRDesc AVRCommonTableGen)
 

lib/Target/AVR/TargetInfo/AVRTargetInfo.cpp

 Target TheAVRTarget;
 }
 
 extern "C" void LLVMInitializeAVRTargetInfo() {
   llvm::RegisterTarget<llvm::Triple::avr> X(
       llvm::TheAVRTarget, "avr", "Atmel AVR Microcontroller");
 }
 
-// FIXME: Temporary stub - this function must be defined for linking
-// to succeed. Remove once this function is properly implemented.
-extern "C" void LLVMInitializeAVRTargetMC() {
-}