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annotate gen/metadata.h @ 1343:c21a6654cce2

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Update for metadata changes in LLVM trunk.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 11 May 2009 11:59:22 +0200
parents 4099548c80e0
children 3297edb697eb
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1 #ifndef LDC_GEN_METADATA_H
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2 #define LDC_GEN_METADATA_H
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3
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4 #include "gen/llvm-version.h"
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5
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6 #if LLVM_REV >= 68420
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7 // Yay, we have metadata!
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8
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9 // The metadata interface is still in flux...
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10 #if LLVM_REV >= 71407
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11 // MDNode was moved into its own header, and contains Value*s
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12 #include "llvm/MDNode.h"
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13 typedef llvm::Value MDNodeField;
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14
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15 // Use getNumElements() and getElement() to access elements.
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16 inline unsigned MD_GetNumElements(llvm::MDNode* N) {
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17 return N->getNumElements();
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18 }
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19 inline MDNodeField* MD_GetElement(llvm::MDNode* N, unsigned i) {
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20 return N->getElement(i);
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21 }
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22 #else
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23 // MDNode is in Constants.h, and contains Constant*s
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24 #include "llvm/Constants.h"
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25 typedef llvm::Constant MDNodeField;
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26
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27 // Use getNumOperands() and getOperand() to access elements.
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28 inline unsigned MD_GetNumElements(llvm::MDNode* N) {
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29 return N->getNumOperands();
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30 }
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31 inline MDNodeField* MD_GetElement(llvm::MDNode* N, unsigned i) {
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32 return N->getOperand(i);
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33 }
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34 #endif
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35
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36 #define USE_METADATA
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37 #define METADATA_LINKAGE_TYPE llvm::GlobalValue::WeakODRLinkage
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38
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39 // *** Metadata for TypeInfo instances ***
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40 #define TD_PREFIX "llvm.ldc.typeinfo."
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41
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42 /// The fields in the metadata node for a TypeInfo instance.
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43 /// (Its name will be TD_PREFIX ~ <Name of TypeInfo global>)
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44 enum TypeDataFields {
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45 // TD_Confirm is disabled for now due to an LLVM bug when MDNodes contain
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46 // globals (see http://llvm.org/PR4180 / http://llvm.org/PR4046 )
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47 TD_Confirm = -1,/// The TypeInfo this node is for.
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48
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49 TD_Type, /// A value of the LLVM type corresponding to this D type
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50
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51 // Must be kept last:
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52 TD_NumFields /// The number of fields in TypeInfo metadata
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53 };
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54
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55
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56 // *** Metadata for ClassInfo instances ***
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57 #define CD_PREFIX "llvm.ldc.classinfo."
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58
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59 /// The fields in the metadata node for a ClassInfo instance.
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60 /// (Its name will be CD_PREFIX ~ <Name of ClassInfo global>)
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61 enum ClassDataFields {
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62 CD_BodyType, /// A value of the LLVM type corresponding to the class body.
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63 CD_Finalize, /// True if this class (or a base class) has a destructor.
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64 CD_CustomDelete,/// True if this class has an overridden delete operator.
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65
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66 // Must be kept last
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67 CD_NumFields /// The number of fields in ClassInfo metadata
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68 };
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69
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70 #endif
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71
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72 #endif