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"
16 LLVMContextImpl::LLVMContextImpl(LLVMContext &C)
17 : TheTrueVal(0), TheFalseVal(0),
18 VoidTy(C, Type::VoidTyID),
19 LabelTy(C, Type::LabelTyID),
20 FloatTy(C, Type::FloatTyID),
21 DoubleTy(C, Type::DoubleTyID),
22 MetadataTy(C, Type::MetadataTyID),
23 X86_FP80Ty(C, Type::X86_FP80TyID),
24 FP128Ty(C, Type::FP128TyID),
25 PPC_FP128Ty(C, Type::PPC_FP128TyID),
31 AlwaysOpaqueTy(new OpaqueType(C)) {
32 // Make sure the AlwaysOpaqueTy stays alive as long as the Context.
33 AlwaysOpaqueTy->addRef();
34 OpaqueTypes.insert(AlwaysOpaqueTy);
37 LLVMContextImpl::~LLVMContextImpl() {
38 ExprConstants.freeConstants();
39 ArrayConstants.freeConstants();
40 StructConstants.freeConstants();
41 VectorConstants.freeConstants();
42 AggZeroConstants.freeConstants();
43 NullPtrConstants.freeConstants();
44 UndefValueConstants.freeConstants();
45 InlineAsms.freeConstants();
46 for (IntMapTy::iterator I = IntConstants.begin(), E = IntConstants.end();
48 if (I->second->use_empty())
51 for (FPMapTy::iterator I = FPConstants.begin(), E = FPConstants.end();
53 if (I->second->use_empty())
56 AlwaysOpaqueTy->dropRef();
57 for (OpaqueTypesTy::iterator I = OpaqueTypes.begin(), E = OpaqueTypes.end();
59 (*I)->AbstractTypeUsers.clear();
62 // Destroy MDNodes. ~MDNode can move and remove nodes between the MDNodeSet
63 // and the NonUniquedMDNodes sets, so copy the values out first.
64 SmallVector<MDNode*, 8> MDNodes;
65 MDNodes.reserve(MDNodeSet.size() + NonUniquedMDNodes.size());
66 for (FoldingSetIterator<MDNode> I = MDNodeSet.begin(), E = MDNodeSet.end();
68 MDNodes.push_back(&*I);
70 MDNodes.append(NonUniquedMDNodes.begin(), NonUniquedMDNodes.end());
71 for (SmallVector<MDNode*, 8>::iterator I = MDNodes.begin(),
72 E = MDNodes.end(); I != E; ++I) {
75 assert(MDNodeSet.empty() && NonUniquedMDNodes.empty() &&
76 "Destroying all MDNodes didn't empty the Context's sets.");
78 for (StringMap<MDString*>::iterator I = MDStringCache.begin(),
79 E = MDStringCache.end(); I != E; ++I) {