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annotate lib/MC/MCValue.cpp @ 77:54457678186b

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents 95c75e76d11b
children 60c9769439b8
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1 //===- lib/MC/MCValue.cpp - MCValue implementation ------------------------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "llvm/MC/MCValue.h"
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11 #include "llvm/MC/MCExpr.h"
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12 #include "llvm/Support/Debug.h"
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13 #include "llvm/Support/ErrorHandling.h"
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14 #include "llvm/Support/raw_ostream.h"
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15
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16 using namespace llvm;
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17
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18 void MCValue::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
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19 if (isAbsolute()) {
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20 OS << getConstant();
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21 return;
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22 }
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23
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24 // FIXME: prints as a number, which isn't ideal. But the meaning will be
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25 // target-specific anyway.
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26 if (getRefKind())
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27 OS << ':' << getRefKind() << ':';
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28
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29 getSymA()->print(OS);
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30
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31 if (getSymB()) {
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32 OS << " - ";
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33 getSymB()->print(OS);
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34 }
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35
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36 if (getConstant())
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37 OS << " + " << getConstant();
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38 }
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39
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40 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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41 void MCValue::dump() const {
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42 print(dbgs(), nullptr);
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43 }
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44 #endif
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46 MCSymbolRefExpr::VariantKind MCValue::getAccessVariant() const {
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47 const MCSymbolRefExpr *B = getSymB();
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48 if (B) {
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49 if (B->getKind() != MCSymbolRefExpr::VK_None)
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50 llvm_unreachable("unsupported");
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51 }
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52
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53 const MCSymbolRefExpr *A = getSymA();
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54 if (!A)
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55 return MCSymbolRefExpr::VK_None;
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56
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57 MCSymbolRefExpr::VariantKind Kind = A->getKind();
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58 if (Kind == MCSymbolRefExpr::VK_WEAKREF)
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59 return MCSymbolRefExpr::VK_None;
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60 return Kind;
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61 }