3297758901
Add support of parsing .csky_attribute directive and emit related target attributes in .csky.attribute section. It does not emit attribute directive in assembly code, so only emit target attributes in ELF streamer. In ELF streamer, it handles the header EFlag and the csky_attribute section which contains some attribute items. The EFlag and attribute items are calculated from feature bits based on Subtarget.
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
//===-- CSKYAsmPrinter.h - CSKY implementation of AsmPrinter ----*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_CSKY_CSKYASMPRINTER_H
|
|
#define LLVM_LIB_TARGET_CSKY_CSKYASMPRINTER_H
|
|
|
|
#include "CSKYMCInstLower.h"
|
|
#include "CSKYSubtarget.h"
|
|
#include "llvm/CodeGen/AsmPrinter.h"
|
|
#include "llvm/MC/MCDirectives.h"
|
|
|
|
namespace llvm {
|
|
class LLVM_LIBRARY_VISIBILITY CSKYAsmPrinter : public AsmPrinter {
|
|
CSKYMCInstLower MCInstLowering;
|
|
|
|
const MCSubtargetInfo *Subtarget;
|
|
const TargetInstrInfo *TII;
|
|
|
|
bool InConstantPool = false;
|
|
|
|
/// Keep a pointer to constantpool entries of the current
|
|
/// MachineFunction.
|
|
MachineConstantPool *MCP;
|
|
|
|
void expandTLSLA(const MachineInstr *MI);
|
|
void emitCustomConstantPool(const MachineInstr *MI);
|
|
void emitAttributes();
|
|
|
|
public:
|
|
explicit CSKYAsmPrinter(TargetMachine &TM,
|
|
std::unique_ptr<MCStreamer> Streamer);
|
|
|
|
StringRef getPassName() const override { return "CSKY Assembly Printer"; }
|
|
|
|
void EmitToStreamer(MCStreamer &S, const MCInst &Inst);
|
|
|
|
/// tblgen'erated driver function for lowering simple MI->MC
|
|
/// pseudo instructions.
|
|
bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
|
|
const MachineInstr *MI);
|
|
|
|
void emitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) override;
|
|
|
|
void emitFunctionBodyEnd() override;
|
|
|
|
void emitStartOfAsmFile(Module &M) override;
|
|
|
|
void emitEndOfAsmFile(Module &M) override;
|
|
|
|
void emitInstruction(const MachineInstr *MI) override;
|
|
|
|
bool runOnMachineFunction(MachineFunction &MF) override;
|
|
|
|
// we emit constant pools customly!
|
|
void emitConstantPool() override{};
|
|
|
|
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
|
|
const char *ExtraCode, raw_ostream &OS) override;
|
|
|
|
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
|
|
const char *ExtraCode, raw_ostream &OS) override;
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_LIB_TARGET_CSKY_CSKYASMPRINTER_H
|