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Current Path: /usr/src/contrib/llvm-project/llvm/lib/Target/WebAssembly

usr / src / contrib / llvm-project / llvm / lib / Target / WebAssembly /

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 README.txt(8.34 KB)
📁 TargetInfo
📄 WebAssembly.h(4.05 KB)
📄 WebAssembly.td(4.85 KB)
📄 WebAssemblyAddMissingPrototypes.cpp(5.41 KB)
📄 WebAssemblyArgumentMove.cpp(3.36 KB)
📄 WebAssemblyAsmPrinter.cpp(16.09 KB)
📄 WebAssemblyAsmPrinter.h(3.12 KB)
📄 WebAssemblyCFGSort.cpp(15.94 KB)
📄 WebAssemblyCFGStackify.cpp(55.56 KB)
📄 WebAssemblyDebugFixup.cpp(5.4 KB)
📄 WebAssemblyDebugValueManager.cpp(1.77 KB)
📄 WebAssemblyDebugValueManager.h(1.13 KB)
📄 WebAssemblyExceptionInfo.cpp(6.23 KB)
📄 WebAssemblyExceptionInfo.h(6.24 KB)
📄 WebAssemblyExplicitLocals.cpp(15.04 KB)
📄 WebAssemblyFastISel.cpp(40.39 KB)
📄 WebAssemblyFixBrTableDefaults.cpp(5.81 KB)
📄 WebAssemblyFixFunctionBitcasts.cpp(12.59 KB)
📄 WebAssemblyFixIrreducibleControlFlow.cpp(18.91 KB)
📄 WebAssemblyFrameLowering.cpp(12.68 KB)
📄 WebAssemblyFrameLowering.h(2.98 KB)
📄 WebAssemblyISD.def(1.17 KB)
📄 WebAssemblyISelDAGToDAG.cpp(9.08 KB)
📄 WebAssemblyISelLowering.cpp(68.59 KB)
📄 WebAssemblyISelLowering.h(5.85 KB)
📄 WebAssemblyInstrAtomics.td(48.5 KB)
📄 WebAssemblyInstrBulkMemory.td(2.84 KB)
📄 WebAssemblyInstrCall.td(3.21 KB)
📄 WebAssemblyInstrControl.td(7.93 KB)
📄 WebAssemblyInstrConv.td(14.1 KB)
📄 WebAssemblyInstrFloat.td(6.03 KB)
📄 WebAssemblyInstrFormats.td(3.1 KB)
📄 WebAssemblyInstrInfo.cpp(8.21 KB)
📄 WebAssemblyInstrInfo.h(2.63 KB)
📄 WebAssemblyInstrInfo.td(14.37 KB)
📄 WebAssemblyInstrInteger.td(6.05 KB)
📄 WebAssemblyInstrMemory.td(18.63 KB)
📄 WebAssemblyInstrRef.td(1.15 KB)
📄 WebAssemblyInstrSIMD.td(39.08 KB)
📄 WebAssemblyLateEHPrepare.cpp(14.57 KB)
📄 WebAssemblyLowerBrUnless.cpp(6.21 KB)
📄 WebAssemblyLowerEmscriptenEHSjLj.cpp(45.45 KB)
📄 WebAssemblyLowerGlobalDtors.cpp(7.79 KB)
📄 WebAssemblyMCInstLower.cpp(13.72 KB)
📄 WebAssemblyMCInstLower.h(1.63 KB)
📄 WebAssemblyMachineFunctionInfo.cpp(4.29 KB)
📄 WebAssemblyMachineFunctionInfo.h(6.75 KB)
📄 WebAssemblyMemIntrinsicResults.cpp(7.39 KB)
📄 WebAssemblyOptimizeLiveIntervals.cpp(4.61 KB)
📄 WebAssemblyOptimizeReturned.cpp(2.46 KB)
📄 WebAssemblyPeephole.cpp(6.33 KB)
📄 WebAssemblyPrepareForLiveIntervals.cpp(4.34 KB)
📄 WebAssemblyRegColoring.cpp(6.37 KB)
📄 WebAssemblyRegNumbering.cpp(3.86 KB)
📄 WebAssemblyRegStackify.cpp(38.22 KB)
📄 WebAssemblyRegisterInfo.cpp(6.21 KB)
📄 WebAssemblyRegisterInfo.h(1.74 KB)
📄 WebAssemblyRegisterInfo.td(2.83 KB)
📄 WebAssemblyReplacePhysRegs.cpp(3.89 KB)
📄 WebAssemblyRuntimeLibcallSignatures.cpp(33.82 KB)
📄 WebAssemblyRuntimeLibcallSignatures.h(1.37 KB)
📄 WebAssemblySelectionDAGInfo.cpp(2.57 KB)
📄 WebAssemblySelectionDAGInfo.h(1.94 KB)
📄 WebAssemblySetP2AlignOperands.cpp(3.32 KB)
📄 WebAssemblySubtarget.cpp(2.18 KB)
📄 WebAssemblySubtarget.h(3.88 KB)
📄 WebAssemblyTargetMachine.cpp(18.85 KB)
📄 WebAssemblyTargetMachine.h(2.29 KB)
📄 WebAssemblyTargetObjectFile.cpp(886 B)
📄 WebAssemblyTargetObjectFile.h(959 B)
📄 WebAssemblyTargetTransformInfo.cpp(2.9 KB)
📄 WebAssemblyTargetTransformInfo.h(2.5 KB)
📄 WebAssemblyUtilities.cpp(3.43 KB)
📄 WebAssemblyUtilities.h(1.8 KB)
📄 known_gcc_test_failures.txt(2.07 KB)

Editing: WebAssemblyMachineFunctionInfo.cpp

//=- WebAssemblyMachineFunctionInfo.cpp - WebAssembly Machine Function Info -=//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file implements WebAssembly-specific per-machine-function
/// information.
///
//===----------------------------------------------------------------------===//

#include "WebAssemblyMachineFunctionInfo.h"
#include "WebAssemblyISelLowering.h"
#include "WebAssemblySubtarget.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;

WebAssemblyFunctionInfo::~WebAssemblyFunctionInfo() = default; // anchor.

void WebAssemblyFunctionInfo::initWARegs(MachineRegisterInfo &MRI) {
  assert(WARegs.empty());
  unsigned Reg = UnusedReg;
  WARegs.resize(MRI.getNumVirtRegs(), Reg);
}

void llvm::computeLegalValueVTs(const Function &F, const TargetMachine &TM,
                                Type *Ty, SmallVectorImpl<MVT> &ValueVTs) {
  const DataLayout &DL(F.getParent()->getDataLayout());
  const WebAssemblyTargetLowering &TLI =
      *TM.getSubtarget<WebAssemblySubtarget>(F).getTargetLowering();
  SmallVector<EVT, 4> VTs;
  ComputeValueVTs(TLI, DL, Ty, VTs);

for (EVT VT : VTs) {
    unsigned NumRegs = TLI.getNumRegisters(F.getContext(), VT);
    MVT RegisterVT = TLI.getRegisterType(F.getContext(), VT);
    for (unsigned I = 0; I != NumRegs; ++I)
      ValueVTs.push_back(RegisterVT);
  }
}

void llvm::computeSignatureVTs(const FunctionType *Ty,
                               const Function *TargetFunc,
                               const Function &ContextFunc,
                               const TargetMachine &TM,
                               SmallVectorImpl<MVT> &Params,
                               SmallVectorImpl<MVT> &Results) {
  computeLegalValueVTs(ContextFunc, TM, Ty->getReturnType(), Results);

MVT PtrVT = MVT::getIntegerVT(TM.createDataLayout().getPointerSizeInBits());
  if (Results.size() > 1 &&
      !TM.getSubtarget<WebAssemblySubtarget>(ContextFunc).hasMultivalue()) {
    // WebAssembly can't lower returns of multiple values without demoting to
    // sret unless multivalue is enabled (see
    // WebAssemblyTargetLowering::CanLowerReturn). So replace multiple return
    // values with a poitner parameter.
    Results.clear();
    Params.push_back(PtrVT);
  }

for (auto *Param : Ty->params())
    computeLegalValueVTs(ContextFunc, TM, Param, Params);
  if (Ty->isVarArg())
    Params.push_back(PtrVT);

// For swiftcc, emit additional swiftself and swifterror parameters
  // if there aren't. These additional parameters are also passed for caller.
  // They are necessary to match callee and caller signature for indirect
  // call.

if (TargetFunc && TargetFunc->getCallingConv() == CallingConv::Swift) {
    MVT PtrVT = MVT::getIntegerVT(TM.createDataLayout().getPointerSizeInBits());
    bool HasSwiftErrorArg = false;
    bool HasSwiftSelfArg = false;
    for (const auto &Arg : TargetFunc->args()) {
      HasSwiftErrorArg |= Arg.hasAttribute(Attribute::SwiftError);
      HasSwiftSelfArg |= Arg.hasAttribute(Attribute::SwiftSelf);
    }
    if (!HasSwiftErrorArg)
      Params.push_back(PtrVT);
    if (!HasSwiftSelfArg)
      Params.push_back(PtrVT);
  }
}

void llvm::valTypesFromMVTs(const ArrayRef<MVT> &In,
                            SmallVectorImpl<wasm::ValType> &Out) {
  for (MVT Ty : In)
    Out.push_back(WebAssembly::toValType(Ty));
}

std::unique_ptr<wasm::WasmSignature>
llvm::signatureFromMVTs(const SmallVectorImpl<MVT> &Results,
                        const SmallVectorImpl<MVT> &Params) {
  auto Sig = std::make_unique<wasm::WasmSignature>();
  valTypesFromMVTs(Results, Sig->Returns);
  valTypesFromMVTs(Params, Sig->Params);
  return Sig;
}

yaml::WebAssemblyFunctionInfo::WebAssemblyFunctionInfo(
    const llvm::WebAssemblyFunctionInfo &MFI)
    : CFGStackified(MFI.isCFGStackified()) {}

void yaml::WebAssemblyFunctionInfo::mappingImpl(yaml::IO &YamlIO) {
  MappingTraits<WebAssemblyFunctionInfo>::mapping(YamlIO, *this);
}

void WebAssemblyFunctionInfo::initializeBaseYamlFields(
    const yaml::WebAssemblyFunctionInfo &YamlMFI) {
  CFGStackified = YamlMFI.CFGStackified;
}

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Editing: WebAssemblyMachineFunctionInfo.cpp

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