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//===-- M68kInstructionSelector.cpp -----------------------------*- C++ -*-===//
//===----------------------------------------------------------------------===//
/// \file
/// This file implements the targeting of the InstructionSelector class for
/// M68k.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//
#include "M68kRegisterBankInfo.h"
#include "M68kSubtarget.h"
#include "M68kTargetMachine.h"
#include "llvm/CodeGen/GlobalISel/GIMatchTableExecutorImpl.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
#include "llvm/Support/Debug.h"
#define DEBUG_TYPE "m68k-isel"
using namespace llvm;
#define GET_GLOBALISEL_PREDICATE_BITSET
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_PREDICATE_BITSET
namespace {
class M68kInstructionSelector : public InstructionSelector {
public:
M68kInstructionSelector(const M68kTargetMachine &TM, const M68kSubtarget &STI,
const M68kRegisterBankInfo &RBI);
bool select(MachineInstr &I) override;
static const char *getName() { return DEBUG_TYPE; }
private:
bool selectImpl(MachineInstr &I, CodeGenCoverage &CoverageInfo) const;
const M68kTargetMachine &TM;
const M68kInstrInfo &TII;
const M68kRegisterInfo &TRI;
const M68kRegisterBankInfo &RBI;
#define GET_GLOBALISEL_PREDICATES_DECL
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_PREDICATES_DECL
#define GET_GLOBALISEL_TEMPORARIES_DECL
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_TEMPORARIES_DECL
};
} // end anonymous namespace
#define GET_GLOBALISEL_IMPL
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_IMPL
M68kInstructionSelector::M68kInstructionSelector(
const M68kTargetMachine &TM, const M68kSubtarget &STI,
const M68kRegisterBankInfo &RBI)
: InstructionSelector(), TM(TM), TII(*STI.getInstrInfo()),
TRI(*STI.getRegisterInfo()), RBI(RBI),
#define GET_GLOBALISEL_PREDICATES_INIT
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_PREDICATES_INIT
#define GET_GLOBALISEL_TEMPORARIES_INIT
#include "M68kGenGlobalISel.inc"
#undef GET_GLOBALISEL_TEMPORARIES_INIT
{
}
bool M68kInstructionSelector::select(MachineInstr &I) {
// Certain non-generic instructions also need some special handling.
if (!isPreISelGenericOpcode(I.getOpcode()))
return true;
if (selectImpl(I, *CoverageInfo))
return true;
return false;
}
namespace llvm {
InstructionSelector *
createM68kInstructionSelector(const M68kTargetMachine &TM,
const M68kSubtarget &Subtarget,
const M68kRegisterBankInfo &RBI) {
return new M68kInstructionSelector(TM, Subtarget, RBI);
}
} // end namespace llvm
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