LLVM API Documentation

AlphaSubtarget.h

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00001 //=====-- AlphaSubtarget.h - Define Subtarget for the Alpha --*- C++ -*--====//
00002 //
00003 //                     The LLVM Compiler Infrastructure
00004 //
00005 // This file was developed by Andrew Lenharth and is distributed under the
00006 // University of Illinois Open Source License. See LICENSE.TXT for details.
00007 //
00008 //===----------------------------------------------------------------------===//
00009 //
00010 // This file declares the Alpha specific subclass of TargetSubtarget.
00011 //
00012 //===----------------------------------------------------------------------===//
00013 
00014 #ifndef ALPHASUBTARGET_H
00015 #define ALPHASUBTARGET_H
00016 
00017 #include "llvm/Target/TargetInstrItineraries.h"
00018 #include "llvm/Target/TargetSubtarget.h"
00019 
00020 #include <string>
00021 
00022 namespace llvm {
00023 class Module;
00024 
00025 class AlphaSubtarget : public TargetSubtarget {
00026 protected:
00027 
00028   /// Used by the ISel to turn in optimizations for POWER4-derived architectures
00029   bool HasF2I;
00030   bool HasCT;
00031 
00032   InstrItineraryData InstrItins;
00033 
00034 public:
00035   /// This constructor initializes the data members to match that
00036   /// of the specified module.
00037   ///
00038   AlphaSubtarget(const Module &M, const std::string &FS);
00039   
00040   /// ParseSubtargetFeatures - Parses features string setting specified 
00041   /// subtarget options.  Definition of function is auto generated by tblgen.
00042   void ParseSubtargetFeatures(const std::string &FS, const std::string &CPU);
00043 
00044   bool hasF2I() const { return HasF2I; }
00045   bool hasCT() const { return HasCT; }
00046 };
00047 } // End llvm namespace
00048 
00049 #endif