9976e5702f
This PR is the first step towards bringing GlobalISel to the Wasm backend. Split from #157161
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
//===- WebAssemblyInstructionSelector.cpp ------------------------*- C++ -*-==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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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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/// WebAssembly.
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/// \todo This should be generated by TableGen.
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//===----------------------------------------------------------------------===//
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#include "GISel/WebAssemblyRegisterBankInfo.h"
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#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
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#include "WebAssemblyRegisterInfo.h"
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#include "WebAssemblySubtarget.h"
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#include "WebAssemblyTargetMachine.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/CodeGen/GlobalISel/MachineIRBuilder.h"
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#include "llvm/CodeGen/GlobalISel/Utils.h"
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#include "llvm/CodeGen/MachineOperand.h"
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#include "llvm/CodeGen/TargetLowering.h"
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#include "llvm/IR/IntrinsicsWebAssembly.h"
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#define DEBUG_TYPE "wasm-isel"
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using namespace llvm;
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namespace {
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#define GET_GLOBALISEL_PREDICATE_BITSET
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#include "WebAssemblyGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATE_BITSET
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class WebAssemblyInstructionSelector : public InstructionSelector {
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public:
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WebAssemblyInstructionSelector(const WebAssemblyTargetMachine &TM,
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const WebAssemblySubtarget &STI,
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const WebAssemblyRegisterBankInfo &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 WebAssemblyTargetMachine &TM;
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// const WebAssemblySubtarget &STI;
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const WebAssemblyInstrInfo &TII;
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const WebAssemblyRegisterInfo &TRI;
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const WebAssemblyRegisterBankInfo &RBI;
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#define GET_GLOBALISEL_PREDICATES_DECL
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#include "WebAssemblyGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATES_DECL
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#define GET_GLOBALISEL_TEMPORARIES_DECL
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#include "WebAssemblyGenGlobalISel.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 "WebAssemblyGenGlobalISel.inc"
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#undef GET_GLOBALISEL_IMPL
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WebAssemblyInstructionSelector::WebAssemblyInstructionSelector(
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const WebAssemblyTargetMachine &TM, const WebAssemblySubtarget &STI,
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const WebAssemblyRegisterBankInfo &RBI)
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: TM(TM), /*STI(STI),*/ 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 "WebAssemblyGenGlobalISel.inc"
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#undef GET_GLOBALISEL_PREDICATES_INIT
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#define GET_GLOBALISEL_TEMPORARIES_INIT
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#include "WebAssemblyGenGlobalISel.inc"
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#undef GET_GLOBALISEL_TEMPORARIES_INIT
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{
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}
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bool WebAssemblyInstructionSelector::select(MachineInstr &I) {
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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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createWebAssemblyInstructionSelector(const WebAssemblyTargetMachine &TM,
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const WebAssemblySubtarget &Subtarget,
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const WebAssemblyRegisterBankInfo &RBI) {
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return new WebAssemblyInstructionSelector(TM, Subtarget, RBI);
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}
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} // namespace llvm
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