1//===--------- AVRMCELFStreamer.cpp - AVR subclass of MCELFStreamer -------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file is a stub that parses a MCInst bundle and passes the
10// instructions on to the real streamer.
11//
12//===----------------------------------------------------------------------===//
13#define DEBUG_TYPE "avrmcelfstreamer"
14
15#include "MCTargetDesc/AVRMCELFStreamer.h"
16#include "llvm/MC/MCContext.h"
17#include "llvm/MC/MCExpr.h"
18#include "llvm/MC/MCSymbol.h"
19#include "llvm/MC/MCObjectWriter.h"
20
21using namespace llvm;
22
23void AVRMCELFStreamer::emitValueForModiferKind(
24    const MCSymbol *Sym, unsigned SizeInBytes, SMLoc Loc,
25    AVRMCExpr::VariantKind ModifierKind) {
26  MCSymbolRefExpr::VariantKind Kind = MCSymbolRefExpr::VK_AVR_NONE;
27  if (ModifierKind == AVRMCExpr::VK_AVR_None) {
28    Kind = MCSymbolRefExpr::VK_AVR_DIFF8;
29    if (SizeInBytes == SIZE_LONG)
30      Kind = MCSymbolRefExpr::VK_AVR_DIFF32;
31    else if (SizeInBytes == SIZE_WORD)
32      Kind = MCSymbolRefExpr::VK_AVR_DIFF16;
33  } else if (ModifierKind == AVRMCExpr::VK_AVR_LO8)
34    Kind = MCSymbolRefExpr::VK_AVR_LO8;
35  else if (ModifierKind == AVRMCExpr::VK_AVR_HI8)
36    Kind = MCSymbolRefExpr::VK_AVR_HI8;
37  else if (ModifierKind == AVRMCExpr::VK_AVR_HH8)
38    Kind = MCSymbolRefExpr::VK_AVR_HLO8;
39  MCELFStreamer::emitValue(MCSymbolRefExpr::create(Sym, Kind, getContext()),
40                           SizeInBytes, Loc);
41}
42
43namespace llvm {
44MCStreamer *createAVRELFStreamer(Triple const &TT, MCContext &Context,
45                                 std::unique_ptr<MCAsmBackend> MAB,
46                                 std::unique_ptr<MCObjectWriter> OW,
47                                 std::unique_ptr<MCCodeEmitter> CE) {
48  return new AVRMCELFStreamer(Context, std::move(MAB), std::move(OW),
49                              std::move(CE));
50}
51
52} // end namespace llvm
53