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1 //===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "llvm/ADT/StringRef.h"
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10 #include "llvm/MC/MCInst.h"
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11 #include "llvm/MC/MCStreamer.h"
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12 #include "llvm/MC/MCSymbol.h"
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13
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14 using namespace llvm;
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15
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16 namespace {
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17
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18 class MCNullStreamer : public MCStreamer {
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19 public:
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20 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
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21
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22 /// @name MCStreamer Interface
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23 /// @{
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24
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25 bool hasRawTextSupport() const override { return true; }
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26 void emitRawTextImpl(StringRef String) override {}
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27
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28 bool emitSymbolAttribute(MCSymbol *Symbol,
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29 MCSymbolAttr Attribute) override {
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30 return true;
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31 }
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32
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33 void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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34 unsigned ByteAlignment) override {}
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35 void emitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
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36 uint64_t Size = 0, unsigned ByteAlignment = 0,
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37 SMLoc Loc = SMLoc()) override {}
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38 void emitGPRel32Value(const MCExpr *Value) override {}
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39 void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
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40 void EmitCOFFSymbolStorageClass(int StorageClass) override {}
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41 void EmitCOFFSymbolType(int Type) override {}
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42 void EndCOFFSymbolDef() override {}
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43 };
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44
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45 }
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46
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47 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
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48 return new MCNullStreamer(Context);
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49 }
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