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annotate ir/irtypeclass.h @ 1650:40bd4a0d4870

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Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.
author Tomas Lindquist Olsen
date Wed, 19 May 2010 12:42:32 +0200
parents 465a77c904d4
children
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1 #ifndef __LDC_IR_IRTYPECLASS_H__
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2 #define __LDC_IR_IRTYPECLASS_H__
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3
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4 #include "ir/irtypestruct.h"
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5
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6 ///
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7 class IrTypeClass : public IrTypeAggr
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8 {
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9 public:
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10 ///
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11 IrTypeClass(ClassDeclaration* cd);
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12
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13 ///
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14 virtual IrTypeClass* isClass() { return this; }
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15
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16 ///
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17 const llvm::Type* buildType();
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18
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19 ///
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20 const llvm::Type* get();
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21
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22 /// Returns the vtable type for this class.
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23 const llvm::Type* getVtbl() { return vtbl_pa.get(); }
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24
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25 /// Get index to interface implementation.
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26 /// Returns the index of a specific interface implementation in this
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27 /// class or ~0 if not found.
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28 size_t getInterfaceIndex(ClassDeclaration* inter);
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29
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30 /// Returns the total number of pointers in the vtable.
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31 unsigned getVtblSize() { return vtbl_size; }
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32
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33 /// Returns the number of interface implementations (vtables) in this
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34 /// class.
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35 unsigned getNumInterfaceVtbls() { return num_interface_vtbls; }
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36
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37 protected:
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38 ///
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39 ClassDeclaration* cd;
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40 ///
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41 TypeClass* tc;
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42
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43 /// Type holder for the vtable type.
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44 llvm::PATypeHolder vtbl_pa;
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45
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46 /// Number of pointers in vtable.
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47 unsigned vtbl_size;
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48
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49 /// Number of interface implementations (vtables) in this class.
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50 unsigned num_interface_vtbls;
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51
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52 /// std::map type mapping ClassDeclaration* to size_t.
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53 typedef std::map<ClassDeclaration*, size_t> ClassIndexMap;
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54
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55 /// Map for mapping the index of a specific interface implementation
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56 /// in this class to its ClassDeclaration.
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57 ClassIndexMap interfaceMap;
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58
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59 //////////////////////////////////////////////////////////////////////////
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60
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61 /// Builds a vtable type given the type of the first entry and an array
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62 /// of all entries.
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63 const llvm::Type* buildVtblType(Type* first, Array* vtbl_array);
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64
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65 ///
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66 void addBaseClassData(
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67 std::vector<const llvm::Type*>& defaultTypes,
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68 ClassDeclaration* base,
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69 size_t& offset,
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70 size_t& field_index);
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72 /// Adds the interface and all it's base interface to the interface
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73 /// to index map.
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74 void addInterfaceToMap(ClassDeclaration* inter, size_t index);
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75 };
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76
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77 #endif