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// SPDX-License-Identifier: GPL-3.0-or-later
// The private header follows the source-tree ownership of LLVM TableGen Common.
// NOLINTNEXTLINE(llvm-header-guard)
#ifndef RCC_UTILS_TABLEGEN_COMMON_CODEGENTARGET_H
#define RCC_UTILS_TABLEGEN_COMMON_CODEGENTARGET_H
#include "rcc/TableGen/Record.h"
#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
namespace rcc::targetgen {
struct NormalizedRegisterUnitLane final {
std::uint32_t UnitID = 0;
std::uint64_t Lanes = 0;
};
struct NormalizedRegister final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t Encoding = 0;
std::uint32_t DwarfRegister = 0;
std::vector<NormalizedRegisterUnitLane> Units;
bool IsConstant = false;
bool IsArtificial = false;
bool IsReserved = false;
std::vector<std::string> AlternativeNames;
};
struct NormalizedRegisterBank final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t MaximumSizeInBits = 0;
std::vector<std::uint32_t> RegisterClasses;
};
struct NormalizedRegisterClass final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t BankID = 0;
std::uint32_t SizeInBits = 0;
std::uint32_t SpillSizeInBits = 0;
std::uint32_t SpillAlignmentInBits = 0;
std::uint64_t Lanes = 0;
std::vector<std::uint32_t> Registers;
std::vector<std::uint32_t> AllocationOrder;
bool Allocatable = true;
std::uint32_t CopyCost = 1;
};
struct NormalizedRegisterMask final {
std::string Name;
std::vector<std::uint32_t> PreservedRegisters;
};
struct NormalizedCallingConvention final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t IntegerRegisterClass = 0;
std::uint32_t FloatingRegisterClass = 0;
std::vector<std::uint32_t> IntegerArgumentRegisters;
std::vector<std::uint32_t> FloatingArgumentRegisters;
std::vector<std::uint32_t> IntegerReturnRegisters;
std::vector<std::uint32_t> FloatingReturnRegisters;
std::string PreservedMaskName;
std::uint32_t StackAlignmentBytes = 0;
std::uint32_t StackArgumentAlignmentBytes = 0;
std::uint32_t ShadowSpaceBytes = 0;
bool SupportsVarArgs = false;
bool SupportsTailCalls = false;
};
struct NormalizedNamedOperand final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
};
struct NormalizedImmediatePredicate final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
bool IsSigned = false;
std::uint32_t Bits = 0;
std::uint64_t Alignment = 1;
bool NonZero = false;
std::vector<std::int64_t> AllowedValues;
};
struct NormalizedSchedulingClass final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t MicroOps = 0;
std::uint32_t Latency = 0;
};
struct NormalizedEncodingCategory final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::uint32_t SizeInBytes = 0;
};
struct NormalizedAssemblyFormat final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
};
struct NormalizedOperand final {
std::vector<std::string> Kinds;
std::string RegisterRole;
std::optional<std::uint32_t> RegisterClass;
std::optional<std::uint32_t> RegisterBank;
std::optional<std::uint32_t> ImmediatePredicate;
std::string MemoryRole;
std::optional<std::uint32_t> DefaultTiedOperand;
bool EarlyClobber = false;
bool Optional = false;
bool VariadicGroup = false;
bool AllowSubReg = false;
std::optional<std::uint32_t> Name;
std::uint32_t AllowedTargetFlags = 0;
};
struct NormalizedImplicitRegister final {
std::uint32_t Register = 0;
bool EarlyClobber = false;
bool Renamable = false;
};
struct NormalizedInstruction final {
std::uint32_t ID = 0;
std::string Symbol;
std::string Name;
std::string AssemblyMnemonic;
std::uint32_t BinaryEncoding = 0;
std::vector<NormalizedOperand> Operands;
std::uint32_t NumExplicitDefs = 0;
bool Variadic = false;
std::vector<NormalizedImplicitRegister> ImplicitDefs;
std::vector<NormalizedImplicitRegister> ImplicitUses;
bool AllowExtraImplicitOperands = false;
std::vector<std::string> Flags;
std::uint32_t SchedulingClass = 0;
std::uint32_t EncodingCategory = 0;
std::uint32_t AssemblyFormat = 0;
bool RequiresMemoryOperands = false;
std::string Owner;
std::string Deadline;
};
struct NormalizedTargetModel final {
SourceTarget Target;
std::vector<SourceRegisterUnit> RegisterUnits;
std::vector<NormalizedRegister> Registers;
std::vector<NormalizedRegisterBank> RegisterBanks;
std::vector<NormalizedRegisterClass> RegisterClasses;
std::vector<NormalizedRegisterMask> RegisterMasks;
SourceMIROperandFlags MIROperandFlags;
std::vector<NormalizedCallingConvention> CallingConventions;
std::vector<NormalizedNamedOperand> NamedOperands;
std::vector<NormalizedImmediatePredicate> ImmediatePredicates;
std::vector<NormalizedSchedulingClass> SchedulingClasses;
std::vector<NormalizedEncodingCategory> EncodingCategories;
std::vector<NormalizedAssemblyFormat> AssemblyFormats;
std::vector<NormalizedInstruction> Instructions;
};
[[nodiscard]] std::optional<std::string_view>
operandKindEnumerator(std::string_view Value) noexcept;
[[nodiscard]] std::optional<std::string_view>
registerRoleEnumerator(std::string_view Value) noexcept;
[[nodiscard]] std::optional<std::string_view> memoryRoleEnumerator(std::string_view Value) noexcept;
[[nodiscard]] std::optional<std::string_view>
instructionFlagEnumerator(std::string_view Value) noexcept;
[[nodiscard]] std::optional<std::string_view>
pseudoOwnerEnumerator(std::string_view Value) noexcept;
[[nodiscard]] std::optional<std::string_view>
pipelineStageEnumerator(std::string_view Value) noexcept;
[[nodiscard]] bool isPowerOfTwo(std::uint64_t Value) noexcept;
class CodeGenTarget final {
public:
CodeGenTarget(const DescriptionAST &Input, std::string SourceName);
[[nodiscard]] std::optional<NormalizedTargetModel> normalize();
[[nodiscard]] std::vector<TextDiagnostic> takeDiagnostics();
private:
void fail(TextRange Range, std::string Message);
[[nodiscard]] bool validateTarget();
[[nodiscard]] bool normalizeRegisterUnits();
[[nodiscard]] bool normalizeRegisters(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeRegisterBanks(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeRegisterClasses(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeRegisterMasks(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeMIROperandFlags(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeCallingConventions(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeNamedOperands(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeImmediatePredicates(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeSchedulingClasses(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeEncodingCategories(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeAssemblyFormats(NormalizedTargetModel &Result);
[[nodiscard]] bool normalizeOperand(const SourceOperand &InputOperand, NormalizedOperand &Result);
[[nodiscard]] bool
normalizeImplicitRegisters(const std::vector<SourceImplicitRegister> &InputRegisters, bool IsDef,
std::vector<NormalizedImplicitRegister> &Result);
[[nodiscard]] bool normalizeInstructions(NormalizedTargetModel &Result);
const DescriptionAST &Input;
std::string SourceName;
std::unordered_map<std::string, std::uint32_t> UnitBySymbol;
std::unordered_map<std::string, std::uint32_t> RegisterBySymbol;
std::unordered_map<std::string, std::uint32_t> BankBySymbol;
std::unordered_map<std::string, std::uint32_t> ClassBySymbol;
std::unordered_map<std::string, std::uint32_t> NamedOperandBySymbol;
std::unordered_map<std::string, std::uint32_t> ImmediatePredicateBySymbol;
std::unordered_map<std::string, std::uint32_t> SchedulingClassBySymbol;
std::unordered_map<std::string, std::uint32_t> EncodingCategoryBySymbol;
std::unordered_map<std::string, std::uint32_t> AssemblyFormatBySymbol;
std::unordered_map<std::string, std::uint32_t> CallingConventionBySymbol;
std::vector<TextDiagnostic> Diagnostics;
};
[[nodiscard]] const NormalizedRegister &findRegister(const NormalizedTargetModel &Model,
std::uint32_t ID);
[[nodiscard]] const SourceRegisterUnit &findRegisterUnit(const NormalizedTargetModel &Model,
std::uint32_t ID);
[[nodiscard]] const NormalizedRegisterBank &findRegisterBank(const NormalizedTargetModel &Model,
std::uint32_t ID);
} // namespace rcc::targetgen
#endif // RCC_UTILS_TABLEGEN_COMMON_CODEGENTARGET_H
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