llvm-6502/lib/Target/Blackfin/BlackfinSubtarget.cpp
Evan Cheng 59ee62d241 - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11 03:57:24 +00:00

59 lines
1.8 KiB
C++

//===- BlackfinSubtarget.cpp - BLACKFIN Subtarget Information -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the blackfin specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#include "BlackfinSubtarget.h"
#include "Blackfin.h"
#include "llvm/Target/TargetRegistry.h"
#define GET_SUBTARGETINFO_ENUM
#define GET_SUBTARGETINFO_MC_DESC
#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "BlackfinGenSubtargetInfo.inc"
using namespace llvm;
BlackfinSubtarget::BlackfinSubtarget(const std::string &TT,
const std::string &CPU,
const std::string &FS)
: BlackfinGenSubtargetInfo(TT, CPU, FS), sdram(false),
icplb(false),
wa_mi_shift(false),
wa_csync(false),
wa_specld(false),
wa_mmr_stall(false),
wa_lcregs(false),
wa_hwloop(false),
wa_ind_call(false),
wa_killed_mmr(false),
wa_rets(false)
{
std::string CPUName = CPU;
if (CPUName.empty())
CPUName = "generic";
// Parse features string.
ParseSubtargetFeatures(CPUName, FS);
}
MCSubtargetInfo *createBlackfinMCSubtargetInfo(StringRef TT, StringRef CPU,
StringRef FS) {
MCSubtargetInfo *X = new MCSubtargetInfo();
InitBlackfinMCSubtargetInfo(X, TT, CPU, FS);
return X;
}
extern "C" void LLVMInitializeBlackfinMCSubtargetInfo() {
TargetRegistry::RegisterMCSubtargetInfo(TheBlackfinTarget,
createBlackfinMCSubtargetInfo);
}