1 //===-- LLVMContextImpl.cpp - Implement LLVMContextImpl -------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the opaque LLVMContextImpl.
12 //===----------------------------------------------------------------------===//
14 #include "LLVMContextImpl.h"
15 #include "llvm/ADT/STLExtras.h"
16 #include "llvm/IR/Attributes.h"
17 #include "llvm/IR/Module.h"
21 LLVMContextImpl::LLVMContextImpl(LLVMContext &C)
22 : TheTrueVal(0), TheFalseVal(0),
23 VoidTy(C, Type::VoidTyID),
24 LabelTy(C, Type::LabelTyID),
25 HalfTy(C, Type::HalfTyID),
26 FloatTy(C, Type::FloatTyID),
27 DoubleTy(C, Type::DoubleTyID),
28 MetadataTy(C, Type::MetadataTyID),
29 X86_FP80Ty(C, Type::X86_FP80TyID),
30 FP128Ty(C, Type::FP128TyID),
31 PPC_FP128Ty(C, Type::PPC_FP128TyID),
32 X86_MMXTy(C, Type::X86_MMXTyID),
38 InlineAsmDiagHandler = 0;
39 InlineAsmDiagContext = 0;
40 DiagnosticHandler = 0;
41 DiagnosticContext = 0;
42 NamedStructTypesUniqueID = 0;
46 struct DropReferences {
47 // Takes the value_type of a ConstantUniqueMap's internal map, whose 'second'
49 template<typename PairT>
50 void operator()(const PairT &P) {
51 P.second->dropAllReferences();
55 // Temporary - drops pair.first instead of second.
57 // Takes the value_type of a ConstantUniqueMap's internal map, whose 'second'
59 template<typename PairT>
60 void operator()(const PairT &P) {
61 P.first->dropAllReferences();
66 LLVMContextImpl::~LLVMContextImpl() {
67 // NOTE: We need to delete the contents of OwnedModules, but we have to
68 // duplicate it into a temporary vector, because the destructor of Module
69 // will try to remove itself from OwnedModules set. This would cause
70 // iterator invalidation if we iterated on the set directly.
71 std::vector<Module*> Modules(OwnedModules.begin(), OwnedModules.end());
72 DeleteContainerPointers(Modules);
74 // Free the constants. This is important to do here to ensure that they are
75 // freed before the LeakDetector is torn down.
76 std::for_each(ExprConstants.map_begin(), ExprConstants.map_end(),
78 std::for_each(ArrayConstants.map_begin(), ArrayConstants.map_end(),
80 std::for_each(StructConstants.map_begin(), StructConstants.map_end(),
82 std::for_each(VectorConstants.map_begin(), VectorConstants.map_end(),
84 ExprConstants.freeConstants();
85 ArrayConstants.freeConstants();
86 StructConstants.freeConstants();
87 VectorConstants.freeConstants();
88 DeleteContainerSeconds(CAZConstants);
89 DeleteContainerSeconds(CPNConstants);
90 DeleteContainerSeconds(UVConstants);
91 InlineAsms.freeConstants();
92 DeleteContainerSeconds(IntConstants);
93 DeleteContainerSeconds(FPConstants);
95 for (StringMap<ConstantDataSequential*>::iterator I = CDSConstants.begin(),
96 E = CDSConstants.end(); I != E; ++I)
100 // Destroy attributes.
101 for (FoldingSetIterator<AttributeImpl> I = AttrsSet.begin(),
102 E = AttrsSet.end(); I != E; ) {
103 FoldingSetIterator<AttributeImpl> Elem = I++;
107 // Destroy attribute lists.
108 for (FoldingSetIterator<AttributeSetImpl> I = AttrsLists.begin(),
109 E = AttrsLists.end(); I != E; ) {
110 FoldingSetIterator<AttributeSetImpl> Elem = I++;
114 // Destroy attribute node lists.
115 for (FoldingSetIterator<AttributeSetNode> I = AttrsSetNodes.begin(),
116 E = AttrsSetNodes.end(); I != E; ) {
117 FoldingSetIterator<AttributeSetNode> Elem = I++;
121 // Destroy MDNodes. ~MDNode can move and remove nodes between the MDNodeSet
122 // and the NonUniquedMDNodes sets, so copy the values out first.
123 SmallVector<MDNode*, 8> MDNodes;
124 MDNodes.reserve(MDNodeSet.size() + NonUniquedMDNodes.size());
125 for (FoldingSetIterator<MDNode> I = MDNodeSet.begin(), E = MDNodeSet.end();
127 MDNodes.push_back(&*I);
128 MDNodes.append(NonUniquedMDNodes.begin(), NonUniquedMDNodes.end());
129 for (SmallVectorImpl<MDNode *>::iterator I = MDNodes.begin(),
130 E = MDNodes.end(); I != E; ++I)
132 assert(MDNodeSet.empty() && NonUniquedMDNodes.empty() &&
133 "Destroying all MDNodes didn't empty the Context's sets.");
135 // Destroy MDStrings.
136 DeleteContainerSeconds(MDStringCache);
139 // ConstantsContext anchors
140 void UnaryConstantExpr::anchor() { }
142 void BinaryConstantExpr::anchor() { }
144 void SelectConstantExpr::anchor() { }
146 void ExtractElementConstantExpr::anchor() { }
148 void InsertElementConstantExpr::anchor() { }
150 void ShuffleVectorConstantExpr::anchor() { }
152 void ExtractValueConstantExpr::anchor() { }
154 void InsertValueConstantExpr::anchor() { }
156 void GetElementPtrConstantExpr::anchor() { }
158 void CompareConstantExpr::anchor() { }