path: root/lib/Target/CellSPU/SPUISelDAGToDAG.cpp

//===-- SPUISelDAGToDAG.cpp - CellSPU pattern matching inst selector ------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a pattern matching instruction selector for the Cell SPU,
// converting from a legalized dag to a SPU-target dag.
//
//===----------------------------------------------------------------------===//

#include "SPU.h"
#include "SPUTargetMachine.h"
#include "SPUISelLowering.h"
#include "SPUHazardRecognizers.h"
#include "SPUFrameInfo.h"
#include "SPURegisterNames.h"
#include "SPUTargetMachine.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Constants.h"
#include "llvm/GlobalValue.h"
#include "llvm/Intrinsics.h"
#include "llvm/LLVMContext.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/raw_ostream.h"

using namespace llvm;

namespace {
  //! ConstantSDNode predicate for i32 sign-extended, 10-bit immediates
  bool
  isI64IntS10Immediate(ConstantSDNode *CN)
  {
    return isInt<10>(CN->getSExtValue());
  }

  //! ConstantSDNode predicate for i32 sign-extended, 10-bit immediates
  bool
  isI32IntS10Immediate(ConstantSDNode *CN)
  {
    return isInt<10>(CN->getSExtValue());
  }

  //! ConstantSDNode predicate for i32 unsigned 10-bit immediate values
  bool
  isI32IntU10Immediate(ConstantSDNode *CN)
  {
    return isUInt<10>(CN->getSExtValue());
  }

  //! ConstantSDNode predicate for i16 sign-extended, 10-bit immediate values
  bool
  isI16IntS10Immediate(ConstantSDNode *CN)
  {
    return isInt<10>(CN->getSExtValue());
  }

  //! SDNode predicate for i16 sign-extended, 10-bit immediate values
  bool
  isI16IntS10Immediate(SDNode *N)
  {
    ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N);
    return (CN != 0 && isI16IntS10Immediate(CN));
  }

  //! ConstantSDNode predicate for i16 unsigned 10-bit immediate values
  bool
  isI16IntU10Immediate(ConstantSDNode *CN)
  {
    return isUInt<10>((short) CN->getZExtValue());
  }

  //! SDNode predicate for i16 sign-extended, 10-bit immediate values
  bool
  isI16IntU10Immediate(SDNode *N)
  {
    return (N->getOpcode() == ISD::Constant
            && isI16IntU10Immediate(cast<ConstantSDNode>(N)));
  }

  //! ConstantSDNode predicate for signed 16-bit values
  /*!
    \arg CN The constant SelectionDAG node holding the value
    \arg Imm The returned 16-bit value, if returning true

    This predicate tests the value in \a CN to see whether it can be
    represented as a 16-bit, sign-extended quantity. Returns true if
    this is the case.
   */
  bool
  isIntS16Immediate(ConstantSDNode *CN, short &Imm)
  {
    EVT