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/DiagnosticInfo.h"
18 #include "llvm/IR/Module.h"
19 #include "llvm/Support/CommandLine.h"
20 #include "llvm/Support/Regex.h"
24 LLVMContextImpl::LLVMContextImpl(LLVMContext &C)
25 : TheTrueVal(nullptr), TheFalseVal(nullptr),
26 VoidTy(C, Type::VoidTyID),
27 LabelTy(C, Type::LabelTyID),
28 HalfTy(C, Type::HalfTyID),
29 FloatTy(C, Type::FloatTyID),
30 DoubleTy(C, Type::DoubleTyID),
31 MetadataTy(C, Type::MetadataTyID),
32 X86_FP80Ty(C, Type::X86_FP80TyID),
33 FP128Ty(C, Type::FP128TyID),
34 PPC_FP128Ty(C, Type::PPC_FP128TyID),
35 X86_MMXTy(C, Type::X86_MMXTyID),
41 InlineAsmDiagHandler = nullptr;
42 InlineAsmDiagContext = nullptr;
43 DiagnosticHandler = nullptr;
44 DiagnosticContext = nullptr;
45 YieldCallback = nullptr;
46 YieldOpaqueHandle = nullptr;
47 NamedStructTypesUniqueID = 0;
52 /// \brief Regular expression corresponding to the value given in one of the
53 /// -pass-remarks* command line flags. Passes whose name matches this regexp
54 /// will emit a diagnostic when calling the associated diagnostic function
55 /// (emitOptimizationRemark, emitOptimizationRemarkMissed or
56 /// emitOptimizationRemarkAnalysis).
57 struct PassRemarksOpt {
58 std::shared_ptr<Regex> Pattern;
60 void operator=(const std::string &Val) {
61 // Create a regexp object to match pass names for emitOptimizationRemark.
63 Pattern = std::make_shared<Regex>(Val);
64 std::string RegexError;
65 if (!Pattern->isValid(RegexError))
66 report_fatal_error("Invalid regular expression '" + Val +
67 "' in -pass-remarks: " + RegexError,
73 static PassRemarksOpt PassRemarksOptLoc;
74 static PassRemarksOpt PassRemarksMissedOptLoc;
75 static PassRemarksOpt PassRemarksAnalysisOptLoc;
78 // Command line flag to enable emitOptimizationRemark()
79 static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
80 PassRemarks("pass-remarks", cl::value_desc("pattern"),
81 cl::desc("Enable optimization remarks from passes whose name match "
82 "the given regular expression"),
83 cl::Hidden, cl::location(PassRemarksOptLoc), cl::ValueRequired,
86 // -pass-remarks-missed
87 // Command line flag to enable emitOptimizationRemarkMissed()
88 static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> PassRemarksMissed(
89 "pass-remarks-missed", cl::value_desc("pattern"),
90 cl::desc("Enable missed optimization remarks from passes whose name match "
91 "the given regular expression"),
92 cl::Hidden, cl::location(PassRemarksMissedOptLoc), cl::ValueRequired,
95 // -pass-remarks-analysis
96 // Command line flag to enable emitOptimizationRemarkAnalysis()
97 static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
99 "pass-remarks-analysis", cl::value_desc("pattern"),
101 "Enable optimization analysis remarks from passes whose name match "
102 "the given regular expression"),
103 cl::Hidden, cl::location(PassRemarksAnalysisOptLoc), cl::ValueRequired,
107 bool LLVMContextImpl::optimizationRemarkEnabledFor(
108 const DiagnosticInfoOptimizationRemark *DI) const {
109 return PassRemarksOptLoc.Pattern &&
110 PassRemarksOptLoc.Pattern->match(DI->getPassName());
113 bool LLVMContextImpl::optimizationRemarkEnabledFor(
114 const DiagnosticInfoOptimizationRemarkMissed *DI) const {
115 return PassRemarksMissedOptLoc.Pattern &&
116 PassRemarksMissedOptLoc.Pattern->match(DI->getPassName());
119 bool LLVMContextImpl::optimizationRemarkEnabledFor(
120 const DiagnosticInfoOptimizationRemarkAnalysis *DI) const {
121 return PassRemarksAnalysisOptLoc.Pattern &&
122 PassRemarksAnalysisOptLoc.Pattern->match(DI->getPassName());
126 struct DropReferences {
127 // Takes the value_type of a ConstantUniqueMap's internal map, whose 'second'
129 template <typename PairT> void operator()(const PairT &P) {
130 P.second->dropAllReferences();
134 // Temporary - drops pair.first instead of second.
136 // Takes the value_type of a ConstantUniqueMap's internal map, whose 'second'
138 template<typename PairT>
139 void operator()(const PairT &P) {
140 P.first->dropAllReferences();
145 LLVMContextImpl::~LLVMContextImpl() {
146 // NOTE: We need to delete the contents of OwnedModules, but Module's dtor
147 // will call LLVMContextImpl::removeModule, thus invalidating iterators into
148 // the container. Avoid iterators during this operation:
149 while (!OwnedModules.empty())
150 delete *OwnedModules.begin();
152 // Free the constants. This is important to do here to ensure that they are
153 // freed before the LeakDetector is torn down.
154 std::for_each(ExprConstants.map_begin(), ExprConstants.map_end(),
156 std::for_each(ArrayConstants.map_begin(), ArrayConstants.map_end(),
158 std::for_each(StructConstants.map_begin(), StructConstants.map_end(),
160 std::for_each(VectorConstants.map_begin(), VectorConstants.map_end(),
162 ExprConstants.freeConstants();
163 ArrayConstants.freeConstants();
164 StructConstants.freeConstants();
165 VectorConstants.freeConstants();
166 DeleteContainerSeconds(CAZConstants);
167 DeleteContainerSeconds(CPNConstants);
168 DeleteContainerSeconds(UVConstants);
169 InlineAsms.freeConstants();
170 DeleteContainerSeconds(IntConstants);
171 DeleteContainerSeconds(FPConstants);
173 for (StringMap<ConstantDataSequential*>::iterator I = CDSConstants.begin(),
174 E = CDSConstants.end(); I != E; ++I)
176 CDSConstants.clear();
178 // Destroy attributes.
179 for (FoldingSetIterator<AttributeImpl> I = AttrsSet.begin(),
180 E = AttrsSet.end(); I != E; ) {
181 FoldingSetIterator<AttributeImpl> Elem = I++;
185 // Destroy attribute lists.
186 for (FoldingSetIterator<AttributeSetImpl> I = AttrsLists.begin(),
187 E = AttrsLists.end(); I != E; ) {
188 FoldingSetIterator<AttributeSetImpl> Elem = I++;
192 // Destroy attribute node lists.
193 for (FoldingSetIterator<AttributeSetNode> I = AttrsSetNodes.begin(),
194 E = AttrsSetNodes.end(); I != E; ) {
195 FoldingSetIterator<AttributeSetNode> Elem = I++;
199 // Destroy MDNodes. ~MDNode can move and remove nodes between the MDNodeSet
200 // and the NonUniquedMDNodes sets, so copy the values out first.
201 SmallVector<MDNode*, 8> MDNodes;
202 MDNodes.reserve(MDNodeSet.size() + NonUniquedMDNodes.size());
203 for (FoldingSetIterator<MDNode> I = MDNodeSet.begin(), E = MDNodeSet.end();
205 MDNodes.push_back(&*I);
206 MDNodes.append(NonUniquedMDNodes.begin(), NonUniquedMDNodes.end());
207 for (SmallVectorImpl<MDNode *>::iterator I = MDNodes.begin(),
208 E = MDNodes.end(); I != E; ++I)
210 assert(MDNodeSet.empty() && NonUniquedMDNodes.empty() &&
211 "Destroying all MDNodes didn't empty the Context's sets.");
213 // Destroy MDStrings.
214 DeleteContainerSeconds(MDStringCache);
217 // ConstantsContext anchors
218 void UnaryConstantExpr::anchor() { }
220 void BinaryConstantExpr::anchor() { }
222 void SelectConstantExpr::anchor() { }
224 void ExtractElementConstantExpr::anchor() { }
226 void InsertElementConstantExpr::anchor() { }
228 void ShuffleVectorConstantExpr::anchor() { }
230 void ExtractValueConstantExpr::anchor() { }
232 void InsertValueConstantExpr::anchor() { }
234 void GetElementPtrConstantExpr::anchor() { }
236 void CompareConstantExpr::anchor() { }