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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_CODEGEN_MACHINEMCCONTEXT_H
#define RCC_CODEGEN_MACHINEMCCONTEXT_H
#include "rcc/CodeGen/MachineIRTypes.h"
#include "rcc/MC/MCContext.h"
#include "rcc/MC/MCSymbol.h"
#include "rcc/Support/Error.h"
#include <string>
#include <string_view>
#include <unordered_map>
namespace rcc {
class CompilationUnit;
struct GlobalObjectDesc;
class MachineBasicBlock;
class MachineFunction;
class MachineMCContext final {
public:
explicit MachineMCContext(mc::MCContext &Context) noexcept : Context(&Context) {}
[[nodiscard]] Expected<void> initialize(const CompilationUnit &Unit);
[[nodiscard]] Expected<void> initializeFunction(const MachineFunction &Function);
[[nodiscard]] mc::MCSymbolRef functionSymbol(const MachineFunction &Function) const noexcept;
[[nodiscard]] mc::MCSymbolRef globalSymbol(const GlobalObjectDesc &Object) const noexcept;
[[nodiscard]] mc::MCSymbolRef blockSymbol(const MachineBasicBlock &Block) const noexcept;
[[nodiscard]] mc::MCSymbolRef constantPoolSymbol(const MachineFunction &Function,
ConstantPoolIndex Index) const noexcept;
[[nodiscard]] mc::MCSymbolRef jumpTableSymbol(const MachineFunction &Function,
JumpTableIndex Index) const noexcept;
[[nodiscard]] Expected<mc::MCSymbolRef> symbol(std::string Name,
mc::MCSymbolKind Kind = mc::MCSymbolKind::Generic);
[[nodiscard]] Expected<mc::MCSymbolRef> blockAddressSymbol(std::string_view FunctionName,
std::string_view BlockName) const;
[[nodiscard]] mc::MCContext &context() const noexcept {
return *Context;
}
private:
struct FunctionIndexKey final {
const MachineFunction *Function = nullptr;
std::uint32_t Index = 0;
friend bool operator==(FunctionIndexKey Left, FunctionIndexKey Right) noexcept = default;
};
struct FunctionIndexHash final {
[[nodiscard]] std::size_t operator()(FunctionIndexKey Key) const noexcept;
};
mc::MCContext *Context;
std::unordered_map<const MachineFunction *, mc::MCSymbolRef> FunctionSymbols;
std::unordered_map<const GlobalObjectDesc *, mc::MCSymbolRef> GlobalSymbols;
std::unordered_map<const MachineBasicBlock *, mc::MCSymbolRef> BlockSymbols;
std::unordered_map<FunctionIndexKey, mc::MCSymbolRef, FunctionIndexHash> ConstantPoolSymbols;
std::unordered_map<FunctionIndexKey, mc::MCSymbolRef, FunctionIndexHash> JumpTableSymbols;
};
} // namespace rcc
#endif // RCC_CODEGEN_MACHINEMCCONTEXT_H
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