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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_CODEGEN_ASMPRINTER_H
#define RCC_CODEGEN_ASMPRINTER_H
#include "rcc/IR/DataLayout.h"
#include "rcc/Support/Error.h"
#include <cstddef>
#include <cstdint>
#include <utility>
namespace rcc {
class CompilationUnit;
class GlobalInitializer;
class MachineFunction;
class MachineJumpTableEntry;
class MachineMCContext;
struct GenericConstantData;
class TargetConstant;
class TargetDescription;
class TargetLoweringObjectFile;
class TargetMCInstLowering;
namespace mc {
class MCStreamer;
} // namespace mc
struct AsmPrinterOptions final {
bool EmitFunctionDirectives = true;
bool EmitCFI = true;
bool EmitBlockLabels = true;
bool EmitInstructionSymbols = true;
bool VerifyInput = true;
};
class AsmPrinter {
public:
AsmPrinter(const TargetDescription &Target, const TargetMCInstLowering &Lowering,
const TargetLoweringObjectFile &ObjectFile, DataLayout Layout,
MachineMCContext &Context, mc::MCStreamer &Streamer,
AsmPrinterOptions Options = {}) noexcept
: Target(&Target), Lowering(&Lowering), ObjectFile(&ObjectFile), Layout(std::move(Layout)),
Context(&Context), Streamer(&Streamer), Options(Options) {}
virtual ~AsmPrinter() = default;
[[nodiscard]] Expected<void> emitCompilationUnit(const CompilationUnit &Unit);
[[nodiscard]] Expected<void> emitFunction(const MachineFunction &Function);
protected:
[[nodiscard]] virtual Expected<void> emitStartOfAsmFile();
[[nodiscard]] virtual Expected<void> emitEndOfAsmFile();
[[nodiscard]] virtual Expected<void> emitTargetConstant(const TargetConstant &Constant);
[[nodiscard]] virtual Expected<void> emitTargetJumpTable(const MachineFunction &Function,
const MachineJumpTableEntry &Entry);
[[nodiscard]] MachineMCContext &machineContext() const noexcept {
return *Context;
}
[[nodiscard]] mc::MCStreamer &streamer() const noexcept {
return *Streamer;
}
private:
[[nodiscard]] Expected<void> verifyFunction(const MachineFunction &Function) const;
[[nodiscard]] Expected<void> emitGlobalObjects(const CompilationUnit &Unit);
[[nodiscard]] Expected<void> emitFunctionImpl(const MachineFunction &Function);
[[nodiscard]] Expected<void> emitFunctionBody(const MachineFunction &Function);
[[nodiscard]] Expected<void> emitConstantPool(const MachineFunction &Function);
[[nodiscard]] Expected<void> emitJumpTables(const MachineFunction &Function);
[[nodiscard]] Expected<void> emitGenericConstant(const GenericConstantData &Constant,
std::uint64_t AllocationSize,
std::size_t Depth = 0);
[[nodiscard]] Expected<void> emitGlobalInitializer(const GlobalInitializer &Initializer,
std::size_t Depth = 0);
const TargetDescription *Target;
const TargetMCInstLowering *Lowering;
const TargetLoweringObjectFile *ObjectFile;
DataLayout Layout;
MachineMCContext *Context;
mc::MCStreamer *Streamer;
AsmPrinterOptions Options;
bool EmissionStarted = false;
bool EmissionFinished = false;
};
} // namespace rcc
#endif // RCC_CODEGEN_ASMPRINTER_H
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