Hexagon backend support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146412 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Hexagon/HexagonTargetMachine.h

@@ -0,0 +1,86 @@
+//=-- HexagonTargetMachine.h - Define TargetMachine for Hexagon ---*- 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 Hexagon specific subclass of TargetMachine.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef HexagonTARGETMACHINE_H
+#define HexagonTARGETMACHINE_H
+
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetData.h"
+#include "HexagonInstrInfo.h"
+#include "HexagonSubtarget.h"
+#include "HexagonISelLowering.h"
+#include "HexagonSelectionDAGInfo.h"
+#include "HexagonFrameLowering.h"
+
+namespace llvm {
+
+class Module;
+
+class HexagonTargetMachine : public LLVMTargetMachine {
+  const TargetData DataLayout;       // Calculates type size & alignment.
+  HexagonSubtarget Subtarget;
+  HexagonTargetLowering TLInfo;
+  HexagonInstrInfo InstrInfo;
+  HexagonSelectionDAGInfo TSInfo;
+  HexagonFrameLowering FrameLowering;
+  const InstrItineraryData* InstrItins;
+
+public:
+  HexagonTargetMachine(const Target &T, StringRef TT,StringRef CPU,
+                       StringRef FS, TargetOptions Options, Reloc::Model RM,
+                       CodeModel::Model CM, CodeGenOpt::Level OL);
+
+  virtual const HexagonInstrInfo *getInstrInfo() const {
+    return &InstrInfo;
+  }
+  virtual const HexagonSubtarget *getSubtargetImpl() const {
+    return &Subtarget;
+  }
+  virtual const HexagonRegisterInfo *getRegisterInfo() const {
+    return &InstrInfo.getRegisterInfo();
+  }
+
+  virtual const InstrItineraryData* getInstrItineraryData() const {
+    return InstrItins;
+  }
+
+
+  virtual const HexagonTargetLowering* getTargetLowering() const {
+    return &TLInfo;
+  }
+
+  virtual const HexagonFrameLowering* getFrameLowering() const {
+    return &FrameLowering;
+  }
+
+  virtual const HexagonSelectionDAGInfo* getSelectionDAGInfo() const {
+    return &TSInfo;
+  }
+
+  virtual const TargetData       *getTargetData() const { return &DataLayout; }
+  static unsigned getModuleMatchQuality(const Module &M);
+
+  // Pass Pipeline Configuration.
+  virtual bool addPassesForOptimizations(PassManagerBase &PM);
+  virtual bool addInstSelector(PassManagerBase &PM);
+  virtual bool addPreEmitPass(PassManagerBase &PM);
+  virtual bool addPreRegAlloc(llvm::PassManagerBase &PM);
+  virtual bool addPostRegAlloc(PassManagerBase &PM);
+  virtual bool addPreSched2(PassManagerBase &PM);
+};
+
+extern bool flag_aligned_memcpy;
+
+} // end namespace llvm
+
+#endif