llvm/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h

// WebAssemblyMachineFunctionInfo.h-WebAssembly machine function info-*- C++ -*-
//
// 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 declares WebAssembly-specific per-machine-function
/// information.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYMACHINEFUNCTIONINFO_H

#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
#include "llvm/CodeGen/MIRYamlMapping.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/MC/MCSymbolWasm.h"

namespace llvm {
class WebAssemblyTargetLowering;

struct WasmEHFuncInfo;

namespace yaml {
struct WebAssemblyFunctionInfo;
}

/// This class is derived from MachineFunctionInfo and contains private
/// WebAssembly-specific information for each MachineFunction.
class WebAssemblyFunctionInfo final : public MachineFunctionInfo { … };

void computeLegalValueVTs(const WebAssemblyTargetLowering &TLI,
                          LLVMContext &Ctx, const DataLayout &DL, Type *Ty,
                          SmallVectorImpl<MVT> &ValueVTs);

void computeLegalValueVTs(const Function &F, const TargetMachine &TM, Type *Ty,
                          SmallVectorImpl<MVT> &ValueVTs);

// Compute the signature for a given FunctionType (Ty). Note that it's not the
// signature for ContextFunc (ContextFunc is just used to get varous context)
void computeSignatureVTs(const FunctionType *Ty, const Function *TargetFunc,
                         const Function &ContextFunc, const TargetMachine &TM,
                         SmallVectorImpl<MVT> &Params,
                         SmallVectorImpl<MVT> &Results);

void valTypesFromMVTs(ArrayRef<MVT> In, SmallVectorImpl<wasm::ValType> &Out);

wasm::WasmSignature *signatureFromMVTs(MCContext &Ctx,
                                       const SmallVectorImpl<MVT> &Results,
                                       const SmallVectorImpl<MVT> &Params);

namespace yaml {

BBNumberMap;

struct WebAssemblyFunctionInfo final : public yaml::MachineFunctionInfo { … };

template <> struct MappingTraits<WebAssemblyFunctionInfo> { … };

template <> struct CustomMappingTraits<BBNumberMap> { … };

} // end namespace yaml

} // end namespace llvm

#endif