1fe7d9c799
Makes `InstructionSelector.h`/`InstructionSelectorImpl.h` generic so the match tables can also be used for the combiner. Some notes: - Coverage was made an optional parameter of `executeMatchTable`, combines won't use it for now. - `GIPFP_` -> `GICXXPred_` so it's more generic. Those are just C++ predicates and aren't PatFrag-specific. - Pass the MatcherState directly to testMIPredicate_MI, the combiner will need it. Reviewed By: arsenm Differential Revision: https://reviews.llvm.org/D153755
91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
//===-- M68kInstructionSelector.cpp -----------------------------*- C++ -*-===//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This file implements the targeting of the InstructionSelector class for
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/// M68k.
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/// \todo This should be generated by TableGen.
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//===----------------------------------------------------------------------===//
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#include "M68kRegisterBankInfo.h"
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#include "M68kSubtarget.h"
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#include "M68kTargetMachine.h"
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#include "llvm/CodeGen/GlobalISel/GIMatchTableExecutorImpl.h"
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#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
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#include "llvm/Support/Debug.h"
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#define DEBUG_TYPE "m68k-isel"
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using namespace llvm;
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#define GET_GLOBALISEL_PREDICATE_BITSET
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATE_BITSET
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namespace {
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class M68kInstructionSelector : public InstructionSelector {
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public:
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M68kInstructionSelector(const M68kTargetMachine &TM, const M68kSubtarget &STI,
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const M68kRegisterBankInfo &RBI);
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bool select(MachineInstr &I) override;
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static const char *getName() { return DEBUG_TYPE; }
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private:
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bool selectImpl(MachineInstr &I, CodeGenCoverage &CoverageInfo) const;
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const M68kTargetMachine &TM;
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const M68kInstrInfo &TII;
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const M68kRegisterInfo &TRI;
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const M68kRegisterBankInfo &RBI;
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#define GET_GLOBALISEL_PREDICATES_DECL
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATES_DECL
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#define GET_GLOBALISEL_TEMPORARIES_DECL
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_TEMPORARIES_DECL
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};
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} // end anonymous namespace
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#define GET_GLOBALISEL_IMPL
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_IMPL
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M68kInstructionSelector::M68kInstructionSelector(
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const M68kTargetMachine &TM, const M68kSubtarget &STI,
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const M68kRegisterBankInfo &RBI)
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: InstructionSelector(), TM(TM), TII(*STI.getInstrInfo()),
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TRI(*STI.getRegisterInfo()), RBI(RBI),
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#define GET_GLOBALISEL_PREDICATES_INIT
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATES_INIT
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#define GET_GLOBALISEL_TEMPORARIES_INIT
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#include "M68kGenGlobalISel.inc"
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#undef GET_GLOBALISEL_TEMPORARIES_INIT
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{
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}
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bool M68kInstructionSelector::select(MachineInstr &I) {
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// Certain non-generic instructions also need some special handling.
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if (!isPreISelGenericOpcode(I.getOpcode()))
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return true;
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if (selectImpl(I, *CoverageInfo))
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return true;
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return false;
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}
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namespace llvm {
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InstructionSelector *
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createM68kInstructionSelector(const M68kTargetMachine &TM,
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const M68kSubtarget &Subtarget,
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const M68kRegisterBankInfo &RBI) {
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return new M68kInstructionSelector(TM, Subtarget, RBI);
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}
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} // end namespace llvm
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