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-rw-r--r--lib/IR/DebugInfo.cpp828
1 files changed, 95 insertions, 733 deletions
diff --git a/lib/IR/DebugInfo.cpp b/lib/IR/DebugInfo.cpp
index 9a6b953..719c28b 100644
--- a/lib/IR/DebugInfo.cpp
+++ b/lib/IR/DebugInfo.cpp
@@ -17,7 +17,6 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringSwitch.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DIBuilder.h"
@@ -25,6 +24,7 @@
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/GVMaterializer.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/Debug.h"
@@ -33,612 +33,62 @@
using namespace llvm;
using namespace llvm::dwarf;
-//===----------------------------------------------------------------------===//
-// DIDescriptor
-//===----------------------------------------------------------------------===//
-
-unsigned DIDescriptor::getFlag(StringRef Flag) {
- return StringSwitch<unsigned>(Flag)
-#define HANDLE_DI_FLAG(ID, NAME) .Case("DIFlag" #NAME, Flag##NAME)
-#include "llvm/IR/DebugInfoFlags.def"
- .Default(0);
-}
-
-const char *DIDescriptor::getFlagString(unsigned Flag) {
- switch (Flag) {
- default:
- return "";
-#define HANDLE_DI_FLAG(ID, NAME) \
- case Flag##NAME: \
- return "DIFlag" #NAME;
-#include "llvm/IR/DebugInfoFlags.def"
- }
-}
-
-unsigned DIDescriptor::splitFlags(unsigned Flags,
- SmallVectorImpl<unsigned> &SplitFlags) {
- // Accessibility flags need to be specially handled, since they're packed
- // together.
- if (unsigned A = Flags & FlagAccessibility) {
- if (A == FlagPrivate)
- SplitFlags.push_back(FlagPrivate);
- else if (A == FlagProtected)
- SplitFlags.push_back(FlagProtected);
- else
- SplitFlags.push_back(FlagPublic);
- Flags &= ~A;
- }
-
-#define HANDLE_DI_FLAG(ID, NAME) \
- if (unsigned Bit = Flags & ID) { \
- SplitFlags.push_back(Bit); \
- Flags &= ~Bit; \
- }
-#include "llvm/IR/DebugInfoFlags.def"
-
- return Flags;
-}
-
-bool DIDescriptor::Verify() const {
- return DbgNode &&
- (DIDerivedType(DbgNode).Verify() ||
- DICompositeType(DbgNode).Verify() || DIBasicType(DbgNode).Verify() ||
- DIVariable(DbgNode).Verify() || DISubprogram(DbgNode).Verify() ||
- DIGlobalVariable(DbgNode).Verify() || DIFile(DbgNode).Verify() ||
- DICompileUnit(DbgNode).Verify() || DINameSpace(DbgNode).Verify() ||
- DILexicalBlock(DbgNode).Verify() ||
- DILexicalBlockFile(DbgNode).Verify() ||
- DISubrange(DbgNode).Verify() || DIEnumerator(DbgNode).Verify() ||
- DIObjCProperty(DbgNode).Verify() ||
- DITemplateTypeParameter(DbgNode).Verify() ||
- DITemplateValueParameter(DbgNode).Verify() ||
- DIImportedEntity(DbgNode).Verify());
-}
-
-static Metadata *getField(const MDNode *DbgNode, unsigned Elt) {
- if (!DbgNode || Elt >= DbgNode->getNumOperands())
- return nullptr;
- return DbgNode->getOperand(Elt);
-}
-
-static MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
- return dyn_cast_or_null<MDNode>(getField(DbgNode, Elt));
-}
-
-static StringRef getStringField(const MDNode *DbgNode, unsigned Elt) {
- if (MDString *MDS = dyn_cast_or_null<MDString>(getField(DbgNode, Elt)))
- return MDS->getString();
- return StringRef();
-}
-
-StringRef DIDescriptor::getStringField(unsigned Elt) const {
- return ::getStringField(DbgNode, Elt);
-}
-
-uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
- if (auto *C = getConstantField(Elt))
- if (ConstantInt *CI = dyn_cast<ConstantInt>(C))
- return CI->getZExtValue();
-
- return 0;
-}
-
-int64_t DIDescriptor::getInt64Field(unsigned Elt) const {
- if (auto *C = getConstantField(Elt))
- if (ConstantInt *CI = dyn_cast<ConstantInt>(C))
- return CI->getZExtValue();
-
- return 0;
-}
-
-DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
- MDNode *Field = getNodeField(DbgNode, Elt);
- return DIDescriptor(Field);
-}
-
-GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
- return dyn_cast_or_null<GlobalVariable>(getConstantField(Elt));
-}
-
-Constant *DIDescriptor::getConstantField(unsigned Elt) const {
- if (!DbgNode)
- return nullptr;
-
- if (Elt < DbgNode->getNumOperands())
- if (auto *C =
- dyn_cast_or_null<ConstantAsMetadata>(DbgNode->getOperand(Elt)))
- return C->getValue();
- return nullptr;
-}
-
-Function *DIDescriptor::getFunctionField(unsigned Elt) const {
- return dyn_cast_or_null<Function>(getConstantField(Elt));
-}
-
-/// \brief Return the size reported by the variable's type.
-unsigned DIVariable::getSizeInBits(const DITypeIdentifierMap &Map) {
- DIType Ty = getType().resolve(Map);
- // Follow derived types until we reach a type that
- // reports back a size.
- while (Ty.isDerivedType() && !Ty.getSizeInBits()) {
- DIDerivedType DT(&*Ty);
- Ty = DT.getTypeDerivedFrom().resolve(Map);
- }
- assert(Ty.getSizeInBits() && "type with size 0");
- return Ty.getSizeInBits();
-}
-
-bool DIExpression::isBitPiece() const {
- unsigned N = getNumElements();
- return N >=3 && getElement(N-3) == dwarf::DW_OP_bit_piece;
-}
-
-uint64_t DIExpression::getBitPieceOffset() const {
- assert(isBitPiece() && "not a piece");
- return getElement(getNumElements()-2);
-}
-
-uint64_t DIExpression::getBitPieceSize() const {
- assert(isBitPiece() && "not a piece");
- return getElement(getNumElements()-1);
-}
-
-DIExpression::iterator DIExpression::Operand::getNext() const {
- iterator it(I);
- return ++it;
-}
-
-//===----------------------------------------------------------------------===//
-// Simple Descriptor Constructors and other Methods
-//===----------------------------------------------------------------------===//
-
-void DIDescriptor::replaceAllUsesWith(LLVMContext &, DIDescriptor D) {
- assert(DbgNode && "Trying to replace an unverified type!");
- assert(DbgNode->isTemporary() && "Expected temporary node");
- TempMDNode Temp(get());
-
- // Since we use a TrackingVH for the node, its easy for clients to manufacture
- // legitimate situations where they want to replaceAllUsesWith() on something
- // which, due to uniquing, has merged with the source. We shield clients from
- // this detail by allowing a value to be replaced with replaceAllUsesWith()
- // itself.
- if (Temp.get() == D.get()) {
- DbgNode = MDNode::replaceWithUniqued(std::move(Temp));
- return;
- }
-
- Temp->replaceAllUsesWith(D.get());
- DbgNode = D.get();
-}
-
-void DIDescriptor::replaceAllUsesWith(MDNode *D) {
- assert(DbgNode && "Trying to replace an unverified type!");
- assert(DbgNode != D && "This replacement should always happen");
- assert(DbgNode->isTemporary() && "Expected temporary node");
- TempMDNode Node(get());
- Node->replaceAllUsesWith(D);
-}
-
-bool DICompileUnit::Verify() const {
- if (!isCompileUnit())
- return false;
-
- // Don't bother verifying the compilation directory or producer string
- // as those could be empty.
- return !getFilename().empty();
-}
-
-bool DIObjCProperty::Verify() const { return isObjCProperty(); }
-
-/// \brief Check if a value can be a reference to a type.
-static bool isTypeRef(const Metadata *MD) {
- if (!MD)
- return true;
- if (auto *S = dyn_cast<MDString>(MD))
- return !S->getString().empty();
- return isa<MDType>(MD);
-}
-
-/// \brief Check if a value can be a ScopeRef.
-static bool isScopeRef(const Metadata *MD) {
- if (!MD)
- return true;
- if (auto *S = dyn_cast<MDString>(MD))
- return !S->getString().empty();
- return isa<MDScope>(MD);
-}
-
-#ifndef NDEBUG
-/// \brief Check if a value can be a DescriptorRef.
-static bool isDescriptorRef(const Metadata *MD) {
- if (!MD)
- return true;
- if (auto *S = dyn_cast<MDString>(MD))
- return !S->getString().empty();
- return isa<MDNode>(MD);
-}
-#endif
-
-bool DIType::Verify() const {
- auto *N = dyn_cast_or_null<MDType>(DbgNode);
- if (!N)
- return false;
- if (!isScopeRef(N->getScope()))
- return false;
-
- // DIType is abstract, it should be a BasicType, a DerivedType or
- // a CompositeType.
- if (isBasicType())
- return DIBasicType(DbgNode).Verify();
-
- // FIXME: Sink this into the various subclass verifies.
- if (getFilename().empty()) {
- // Check whether the filename is allowed to be empty.
- uint16_t Tag = getTag();
- if (Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
- Tag != dwarf::DW_TAG_pointer_type &&
- Tag != dwarf::DW_TAG_ptr_to_member_type &&
- Tag != dwarf::DW_TAG_reference_type &&
- Tag != dwarf::DW_TAG_rvalue_reference_type &&
- Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_array_type &&
- Tag != dwarf::DW_TAG_enumeration_type &&
- Tag != dwarf::DW_TAG_subroutine_type &&
- Tag != dwarf::DW_TAG_inheritance && Tag != dwarf::DW_TAG_friend &&
- Tag != dwarf::DW_TAG_structure_type && Tag != dwarf::DW_TAG_member &&
- Tag != dwarf::DW_TAG_typedef)
- return false;
- }
-
- if (isCompositeType())
- return DICompositeType(DbgNode).Verify();
- if (isDerivedType())
- return DIDerivedType(DbgNode).Verify();
- return false;
-}
-
-bool DIBasicType::Verify() const {
- return dyn_cast_or_null<MDBasicType>(DbgNode);
-}
-
-bool DIDerivedType::Verify() const {
- auto *N = dyn_cast_or_null<MDDerivedTypeBase>(DbgNode);
- if (!N)
- return false;
- if (getTag() == dwarf::DW_TAG_ptr_to_member_type) {
- auto *D = dyn_cast<MDDerivedType>(N);
- if (!D)
- return false;
- if (!isTypeRef(D->getExtraData()))
- return false;
- }
- return isTypeRef(N->getBaseType());
-}
-
-bool DICompositeType::Verify() const {
- auto *N = dyn_cast_or_null<MDCompositeTypeBase>(DbgNode);
- return N && isTypeRef(N->getBaseType()) && isTypeRef(N->getVTableHolder()) &&
- !(isLValueReference() && isRValueReference());
-}
-
-bool DISubprogram::Verify() const {
- auto *N = dyn_cast_or_null<MDSubprogram>(DbgNode);
- if (!N)
- return false;
-
- if (!isScopeRef(N->getScope()))
- return false;
-
- if (auto *Op = N->getType())
- if (!isa<MDNode>(Op))
- return false;
-
- if (!isTypeRef(getContainingType()))
- return false;
-
- if (isLValueReference() && isRValueReference())
- return false;
-
- // If a DISubprogram has an llvm::Function*, then scope chains from all
- // instructions within the function should lead to this DISubprogram.
- if (auto *F = getFunction()) {
- for (auto &BB : *F) {
- for (auto &I : BB) {
- DebugLoc DL = I.getDebugLoc();
- if (DL.isUnknown())
- continue;
-
- MDNode *Scope = nullptr;
- MDNode *IA = nullptr;
- // walk the inlined-at scopes
- while ((IA = DL.getInlinedAt()))
- DL = DebugLoc::getFromDILocation(IA);
- DL.getScopeAndInlinedAt(Scope, IA);
- if (!Scope)
- return false;
- assert(!IA);
- while (!DIDescriptor(Scope).isSubprogram()) {
- DILexicalBlockFile D(Scope);
- Scope = D.isLexicalBlockFile()
- ? D.getScope()
- : DebugLoc::getFromDILexicalBlock(Scope).getScope();
- if (!Scope)
- return false;
- }
- if (!DISubprogram(Scope).describes(F))
- return false;
- }
- }
- }
-
- return true;
-}
-
-bool DIGlobalVariable::Verify() const {
- auto *N = dyn_cast_or_null<MDGlobalVariable>(DbgNode);
-
- if (!N)
- return false;
-
- if (N->getDisplayName().empty())
- return false;
-
- if (auto *Op = N->getScope())
- if (!isa<MDNode>(Op))
- return false;
-
- if (auto *Op = N->getStaticDataMemberDeclaration())
- if (!isa<MDNode>(Op))
- return false;
-
- return isTypeRef(N->getType());
-}
-
-bool DIVariable::Verify() const {
- auto *N = dyn_cast_or_null<MDLocalVariable>(DbgNode);
-
- if (!N)
- return false;
-
- if (auto *Op = N->getScope())
- if (!isa<MDNode>(Op))
- return false;
-
- return isTypeRef(N->getType());
-}
-
-bool DILocation::Verify() const {
- return dyn_cast_or_null<MDLocation>(DbgNode);
-}
-bool DINameSpace::Verify() const {
- return dyn_cast_or_null<MDNamespace>(DbgNode);
-}
-bool DIFile::Verify() const { return dyn_cast_or_null<MDFile>(DbgNode); }
-bool DIEnumerator::Verify() const {
- return dyn_cast_or_null<MDEnumerator>(DbgNode);
-}
-bool DISubrange::Verify() const {
- return dyn_cast_or_null<MDSubrange>(DbgNode);
-}
-bool DILexicalBlock::Verify() const {
- return dyn_cast_or_null<MDLexicalBlock>(DbgNode);
-}
-bool DILexicalBlockFile::Verify() const {
- return dyn_cast_or_null<MDLexicalBlockFile>(DbgNode);
-}
-bool DITemplateTypeParameter::Verify() const {
- return dyn_cast_or_null<MDTemplateTypeParameter>(DbgNode);
-}
-bool DITemplateValueParameter::Verify() const {
- return dyn_cast_or_null<MDTemplateValueParameter>(DbgNode);
-}
-bool DIImportedEntity::Verify() const {
- return dyn_cast_or_null<MDImportedEntity>(DbgNode);
-}
-
-void DICompositeType::setArraysHelper(MDNode *Elements, MDNode *TParams) {
- TypedTrackingMDRef<MDCompositeTypeBase> N(get());
- if (Elements)
- N->replaceElements(cast<MDTuple>(Elements));
- if (TParams)
- N->replaceTemplateParams(cast<MDTuple>(TParams));
- DbgNode = N;
-}
-
-DIScopeRef DIScope::getRef() const {
- if (!isCompositeType())
- return DIScopeRef(*this);
- DICompositeType DTy(DbgNode);
- if (!DTy.getIdentifier())
- return DIScopeRef(*this);
- return DIScopeRef(DTy.getIdentifier());
-}
-
-void DICompositeType::setContainingType(DICompositeType ContainingType) {
- TypedTrackingMDRef<MDCompositeTypeBase> N(get());
- N->replaceVTableHolder(ContainingType.getRef());
- DbgNode = N;
-}
-
-bool DIVariable::isInlinedFnArgument(const Function *CurFn) {
- assert(CurFn && "Invalid function");
- if (!getContext().isSubprogram())
- return false;
- // This variable is not inlined function argument if its scope
- // does not describe current function.
- return !DISubprogram(getContext()).describes(CurFn);
-}
-
-Function *DISubprogram::getFunction() const {
- if (auto *N = get())
- if (auto *C = dyn_cast_or_null<ConstantAsMetadata>(N->getFunction()))
- return dyn_cast<Function>(C->getValue());
- return nullptr;
-}
-
-bool DISubprogram::describes(const Function *F) {
- assert(F && "Invalid function");
- if (F == getFunction())
- return true;
- StringRef Name = getLinkageName();
- if (Name.empty())
- Name = getName();
- if (F->getName() == Name)
- return true;
- return false;
-}
-
-GlobalVariable *DIGlobalVariable::getGlobal() const {
- return dyn_cast_or_null<GlobalVariable>(getConstant());
-}
-
-DIScopeRef DIScope::getContext() const {
-
- if (isType())
- return DIType(DbgNode).getContext();
-
- if (isSubprogram())
- return DIScopeRef(DISubprogram(DbgNode).getContext());
-
- if (isLexicalBlock())
- return DIScopeRef(DILexicalBlock(DbgNode).getContext());
-
- if (isLexicalBlockFile())
- return DIScopeRef(DILexicalBlockFile(DbgNode).getContext());
-
- if (isNameSpace())
- return DIScopeRef(DINameSpace(DbgNode).getContext());
-
- assert((isFile() || isCompileUnit()) && "Unhandled type of scope.");
- return DIScopeRef(nullptr);
-}
-
-StringRef DIScope::getName() const {
- if (isType())
- return DIType(DbgNode).getName();
- if (isSubprogram())
- return DISubprogram(DbgNode).getName();
- if (isNameSpace())
- return DINameSpace(DbgNode).getName();
- assert((isLexicalBlock() || isLexicalBlockFile() || isFile() ||
- isCompileUnit()) &&
- "Unhandled type of scope.");
- return StringRef();
-}
-
-StringRef DIScope::getFilename() const {
- if (auto *N = get())
- return ::getStringField(dyn_cast_or_null<MDNode>(N->getFile()), 0);
- return "";
-}
-
-StringRef DIScope::getDirectory() const {
- if (auto *N = get())
- return ::getStringField(dyn_cast_or_null<MDNode>(N->getFile()), 1);
- return "";
-}
-
-void DICompileUnit::replaceSubprograms(DIArray Subprograms) {
- assert(Verify() && "Expected compile unit");
- get()->replaceSubprograms(cast_or_null<MDTuple>(Subprograms.get()));
-}
-
-void DICompileUnit::replaceGlobalVariables(DIArray GlobalVariables) {
- assert(Verify() && "Expected compile unit");
- get()->replaceGlobalVariables(cast_or_null<MDTuple>(GlobalVariables.get()));
-}
-
-DILocation DILocation::copyWithNewScope(LLVMContext &Ctx,
- DILexicalBlockFile NewScope) {
- assert(Verify());
- assert(NewScope && "Expected valid scope");
-
- const auto *Old = cast<MDLocation>(DbgNode);
- return DILocation(MDLocation::get(Ctx, Old->getLine(), Old->getColumn(),
- NewScope, Old->getInlinedAt()));
-}
-
-unsigned DILocation::computeNewDiscriminator(LLVMContext &Ctx) {
- std::pair<const char *, unsigned> Key(getFilename().data(), getLineNumber());
- return ++Ctx.pImpl->DiscriminatorTable[Key];
-}
-
-DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
- LLVMContext &VMContext) {
- assert(DIVariable(DV).Verify() && "Expected a DIVariable");
- return cast<MDLocalVariable>(DV)
- ->withInline(cast_or_null<MDLocation>(InlinedScope));
-}
-
-DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
- assert(DIVariable(DV).Verify() && "Expected a DIVariable");
- return cast<MDLocalVariable>(DV)->withoutInline();
-}
-
DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
- DIDescriptor D(Scope);
- if (D.isSubprogram())
- return DISubprogram(Scope);
-
- if (D.isLexicalBlockFile())
- return getDISubprogram(DILexicalBlockFile(Scope).getContext());
-
- if (D.isLexicalBlock())
- return getDISubprogram(DILexicalBlock(Scope).getContext());
-
- return DISubprogram();
+ if (auto *LocalScope = dyn_cast_or_null<MDLocalScope>(Scope))
+ return LocalScope->getSubprogram();
+ return nullptr;
}
DISubprogram llvm::getDISubprogram(const Function *F) {
// We look for the first instr that has a debug annotation leading back to F.
for (auto &BB : *F) {
auto Inst = std::find_if(BB.begin(), BB.end(), [](const Instruction &Inst) {
- return !Inst.getDebugLoc().isUnknown();
+ return Inst.getDebugLoc();
});
if (Inst == BB.end())
continue;
DebugLoc DLoc = Inst->getDebugLoc();
- const MDNode *Scope = DLoc.getScopeNode();
+ const MDNode *Scope = DLoc.getInlinedAtScope();
DISubprogram Subprogram = getDISubprogram(Scope);
- return Subprogram.describes(F) ? Subprogram : DISubprogram();
+ return Subprogram->describes(F) ? Subprogram : DISubprogram();
}
return DISubprogram();
}
DICompositeType llvm::getDICompositeType(DIType T) {
- if (T.isCompositeType())
- return DICompositeType(T);
+ if (auto *C = dyn_cast_or_null<MDCompositeTypeBase>(T))
+ return C;
- if (T.isDerivedType()) {
+ if (auto *D = dyn_cast_or_null<MDDerivedTypeBase>(T)) {
// This function is currently used by dragonegg and dragonegg does
// not generate identifier for types, so using an empty map to resolve
// DerivedFrom should be fine.
DITypeIdentifierMap EmptyMap;
- return getDICompositeType(
- DIDerivedType(T).getTypeDerivedFrom().resolve(EmptyMap));
+ return getDICompositeType(D->getBaseType().resolve(EmptyMap));
}
- return DICompositeType();
+ return nullptr;
}
DITypeIdentifierMap
llvm::generateDITypeIdentifierMap(const NamedMDNode *CU_Nodes) {
DITypeIdentifierMap Map;
for (unsigned CUi = 0, CUe = CU_Nodes->getNumOperands(); CUi != CUe; ++CUi) {
- DICompileUnit CU(CU_Nodes->getOperand(CUi));
- DIArray Retain = CU.getRetainedTypes();
- for (unsigned Ti = 0, Te = Retain.getNumElements(); Ti != Te; ++Ti) {
- if (!Retain.getElement(Ti).isCompositeType())
+ auto *CU = cast<MDCompileUnit>(CU_Nodes->getOperand(CUi));
+ DIArray Retain = CU->getRetainedTypes();
+ for (unsigned Ti = 0, Te = Retain.size(); Ti != Te; ++Ti) {
+ if (!isa<MDCompositeType>(Retain[Ti]))
continue;
- DICompositeType Ty(Retain.getElement(Ti));
- if (MDString *TypeId = Ty.getIdentifier()) {
+ auto *Ty = cast<MDCompositeType>(Retain[Ti]);
+ if (MDString *TypeId = Ty->getRawIdentifier()) {
// Definition has priority over declaration.
// Try to insert (TypeId, Ty) to Map.
std::pair<DITypeIdentifierMap::iterator, bool> P =
Map.insert(std::make_pair(TypeId, Ty));
// If TypeId already exists in Map and this is a definition, replace
// whatever we had (declaration or definition) with the definition.
- if (!P.second && !Ty.isForwardDecl())
+ if (!P.second && !Ty->isForwardDecl())
P.first->second = Ty;
}
}
@@ -673,37 +123,28 @@ void DebugInfoFinder::processModule(const Module &M) {
InitializeTypeMap(M);
if (NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu")) {
for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
- DICompileUnit CU(CU_Nodes->getOperand(i));
+ DICompileUnit CU = cast<MDCompileUnit>(CU_Nodes->getOperand(i));
addCompileUnit(CU);
- DIArray GVs = CU.getGlobalVariables();
- for (unsigned i = 0, e = GVs.getNumElements(); i != e; ++i) {
- DIGlobalVariable DIG(GVs.getElement(i));
+ for (DIGlobalVariable DIG : CU->getGlobalVariables()) {
if (addGlobalVariable(DIG)) {
- processScope(DIG.getContext());
- processType(DIG.getType().resolve(TypeIdentifierMap));
+ processScope(DIG->getScope());
+ processType(DIG->getType().resolve(TypeIdentifierMap));
}
}
- DIArray SPs = CU.getSubprograms();
- for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i)
- processSubprogram(DISubprogram(SPs.getElement(i)));
- DIArray EnumTypes = CU.getEnumTypes();
- for (unsigned i = 0, e = EnumTypes.getNumElements(); i != e; ++i)
- processType(DIType(EnumTypes.getElement(i)));
- DIArray RetainedTypes = CU.getRetainedTypes();
- for (unsigned i = 0, e = RetainedTypes.getNumElements(); i != e; ++i)
- processType(DIType(RetainedTypes.getElement(i)));
- DIArray Imports = CU.getImportedEntities();
- for (unsigned i = 0, e = Imports.getNumElements(); i != e; ++i) {
- DIImportedEntity Import = DIImportedEntity(Imports.getElement(i));
- if (!Import)
- continue;
- DIDescriptor Entity = Import.getEntity().resolve(TypeIdentifierMap);
- if (Entity.isType())
- processType(DIType(Entity));
- else if (Entity.isSubprogram())
- processSubprogram(DISubprogram(Entity));
- else if (Entity.isNameSpace())
- processScope(DINameSpace(Entity).getContext());
+ for (auto *SP : CU->getSubprograms())
+ processSubprogram(SP);
+ for (auto *ET : CU->getEnumTypes())
+ processType(ET);
+ for (auto *RT : CU->getRetainedTypes())
+ processType(RT);
+ for (DIImportedEntity Import : CU->getImportedEntities()) {
+ auto *Entity = Import->getEntity().resolve(TypeIdentifierMap);
+ if (auto *T = dyn_cast<MDType>(Entity))
+ processType(T);
+ else if (auto *SP = dyn_cast<MDSubprogram>(Entity))
+ processSubprogram(SP);
+ else if (auto *NS = dyn_cast<MDNamespace>(Entity))
+ processScope(NS->getScope());
}
}
}
@@ -713,79 +154,66 @@ void DebugInfoFinder::processLocation(const Module &M, DILocation Loc) {
if (!Loc)
return;
InitializeTypeMap(M);
- processScope(Loc.getScope());
- processLocation(M, Loc.getOrigLocation());
+ processScope(Loc->getScope());
+ processLocation(M, Loc->getInlinedAt());
}
void DebugInfoFinder::processType(DIType DT) {
if (!addType(DT))
return;
- processScope(DT.getContext().resolve(TypeIdentifierMap));
- if (DT.isCompositeType()) {
- DICompositeType DCT(DT);
- processType(DCT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
- if (DT.isSubroutineType()) {
- DITypeArray DTA = DISubroutineType(DT).getTypeArray();
- for (unsigned i = 0, e = DTA.getNumElements(); i != e; ++i)
- processType(DTA.getElement(i).resolve(TypeIdentifierMap));
+ processScope(DT->getScope().resolve(TypeIdentifierMap));
+ if (auto *DCT = dyn_cast<MDCompositeTypeBase>(DT)) {
+ processType(DCT->getBaseType().resolve(TypeIdentifierMap));
+ if (auto *ST = dyn_cast<MDSubroutineType>(DCT)) {
+ for (MDTypeRef Ref : ST->getTypeArray())
+ processType(Ref.resolve(TypeIdentifierMap));
return;
}
- DIArray DA = DCT.getElements();
- for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
- DIDescriptor D = DA.getElement(i);
- if (D.isType())
- processType(DIType(D));
- else if (D.isSubprogram())
- processSubprogram(DISubprogram(D));
+ for (Metadata *D : DCT->getElements()) {
+ if (auto *T = dyn_cast<MDType>(D))
+ processType(T);
+ else if (DISubprogram SP = dyn_cast<MDSubprogram>(D))
+ processSubprogram(SP);
}
- } else if (DT.isDerivedType()) {
- DIDerivedType DDT(DT);
- processType(DDT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
+ } else if (auto *DDT = dyn_cast<MDDerivedTypeBase>(DT)) {
+ processType(DDT->getBaseType().resolve(TypeIdentifierMap));
}
}
void DebugInfoFinder::processScope(DIScope Scope) {
- if (Scope.isType()) {
- DIType Ty(Scope);
+ if (!Scope)
+ return;
+ if (DIType Ty = dyn_cast<MDType>(Scope)) {
processType(Ty);
return;
}
- if (Scope.isCompileUnit()) {
- addCompileUnit(DICompileUnit(Scope));
+ if (DICompileUnit CU = dyn_cast<MDCompileUnit>(Scope)) {
+ addCompileUnit(CU);
return;
}
- if (Scope.isSubprogram()) {
- processSubprogram(DISubprogram(Scope));
+ if (DISubprogram SP = dyn_cast<MDSubprogram>(Scope)) {
+ processSubprogram(SP);
return;
}
if (!addScope(Scope))
return;
- if (Scope.isLexicalBlock()) {
- DILexicalBlock LB(Scope);
- processScope(LB.getContext());
- } else if (Scope.isLexicalBlockFile()) {
- DILexicalBlockFile LBF = DILexicalBlockFile(Scope);
- processScope(LBF.getScope());
- } else if (Scope.isNameSpace()) {
- DINameSpace NS(Scope);
- processScope(NS.getContext());
+ if (auto *LB = dyn_cast<MDLexicalBlockBase>(Scope)) {
+ processScope(LB->getScope());
+ } else if (auto *NS = dyn_cast<MDNamespace>(Scope)) {
+ processScope(NS->getScope());
}
}
void DebugInfoFinder::processSubprogram(DISubprogram SP) {
if (!addSubprogram(SP))
return;
- processScope(SP.getContext().resolve(TypeIdentifierMap));
- processType(SP.getType());
- DIArray TParams = SP.getTemplateParams();
- for (unsigned I = 0, E = TParams.getNumElements(); I != E; ++I) {
- DIDescriptor Element = TParams.getElement(I);
- if (Element.isTemplateTypeParameter()) {
- DITemplateTypeParameter TType(Element);
- processType(TType.getType().resolve(TypeIdentifierMap));
- } else if (Element.isTemplateValueParameter()) {
- DITemplateValueParameter TVal(Element);
- processType(TVal.getType().resolve(TypeIdentifierMap));
+ processScope(SP->getScope().resolve(TypeIdentifierMap));
+ processType(SP->getType());
+ for (auto *Element : SP->getTemplateParams()) {
+ if (auto *TType = dyn_cast<MDTemplateTypeParameter>(Element)) {
+ processType(TType->getType().resolve(TypeIdentifierMap));
+ } else if (auto *TVal = dyn_cast<MDTemplateValueParameter>(Element)) {
+ processType(TVal->getType().resolve(TypeIdentifierMap));
}
}
}
@@ -797,14 +225,14 @@ void DebugInfoFinder::processDeclare(const Module &M,
return;
InitializeTypeMap(M);
- DIDescriptor DV(N);
- if (!DV.isVariable())
+ DIVariable DV = dyn_cast<MDLocalVariable>(N);
+ if (!DV)
return;
if (!NodesSeen.insert(DV).second)
return;
- processScope(DIVariable(N).getContext());
- processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
+ processScope(DV->getScope());
+ processType(DV->getType().resolve(TypeIdentifierMap));
}
void DebugInfoFinder::processValue(const Module &M, const DbgValueInst *DVI) {
@@ -813,14 +241,14 @@ void DebugInfoFinder::processValue(const Module &M, const DbgValueInst *DVI) {
return;
InitializeTypeMap(M);
- DIDescriptor DV(N);
- if (!DV.isVariable())
+ DIVariable DV = dyn_cast<MDLocalVariable>(N);
+ if (!DV)
return;
if (!NodesSeen.insert(DV).second)
return;
- processScope(DIVariable(N).getContext());
- processType(DIVariable(N).getType().resolve(TypeIdentifierMap));
+ processScope(DV->getScope());
+ processType(DV->getType().resolve(TypeIdentifierMap));
}
bool DebugInfoFinder::addType(DIType DT) {
@@ -879,76 +307,17 @@ bool DebugInfoFinder::addScope(DIScope Scope) {
return true;
}
-//===----------------------------------------------------------------------===//
-// DIDescriptor: dump routines for all descriptors.
-//===----------------------------------------------------------------------===//
-
-void DIDescriptor::dump() const {
- print(dbgs());
- dbgs() << '\n';
-}
-
-void DIDescriptor::print(raw_ostream &OS) const {
- if (!get())
- return;
- get()->print(OS);
-}
-
-static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
- const LLVMContext &Ctx) {
- if (!DL.isUnknown()) { // Print source line info.
- DIScope Scope(DL.getScope(Ctx));
- assert(Scope.isScope() && "Scope of a DebugLoc should be a DIScope.");
- // Omit the directory, because it's likely to be long and uninteresting.
- CommentOS << Scope.getFilename();
- CommentOS << ':' << DL.getLine();
- if (DL.getCol() != 0)
- CommentOS << ':' << DL.getCol();
- DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx));
- if (!InlinedAtDL.isUnknown()) {
- CommentOS << " @[ ";
- printDebugLoc(InlinedAtDL, CommentOS, Ctx);
- CommentOS << " ]";
- }
- }
-}
-
-void DIVariable::printExtendedName(raw_ostream &OS) const {
- const LLVMContext &Ctx = DbgNode->getContext();
- StringRef Res = getName();
- if (!Res.empty())
- OS << Res << "," << getLineNumber();
- if (MDNode *InlinedAt = getInlinedAt()) {
- DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt);
- if (!InlinedAtDL.isUnknown()) {
- OS << " @[";
- printDebugLoc(InlinedAtDL, OS, Ctx);
- OS << "]";
+bool llvm::stripDebugInfo(Function &F) {
+ bool Changed = false;
+ for (BasicBlock &BB : F) {
+ for (Instruction &I : BB) {
+ if (I.getDebugLoc()) {
+ Changed = true;
+ I.setDebugLoc(DebugLoc());
+ }
}
}
-}
-
-template <> DIRef<DIDescriptor>::DIRef(const Metadata *V) : Val(V) {
- assert(isDescriptorRef(V) &&
- "DIDescriptorRef should be a MDString or MDNode");
-}
-template <> DIRef<DIScope>::DIRef(const Metadata *V) : Val(V) {
- assert(isScopeRef(V) && "DIScopeRef should be a MDString or MDNode");
-}
-template <> DIRef<DIType>::DIRef(const Metadata *V) : Val(V) {
- assert(isTypeRef(V) && "DITypeRef should be a MDString or MDNode");
-}
-
-template <>
-DIDescriptorRef DIDescriptor::getFieldAs<DIDescriptorRef>(unsigned Elt) const {
- return DIDescriptorRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
-}
-template <>
-DIScopeRef DIDescriptor::getFieldAs<DIScopeRef>(unsigned Elt) const {
- return DIScopeRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
-}
-template <> DITypeRef DIDescriptor::getFieldAs<DITypeRef>(unsigned Elt) const {
- return DITypeRef(cast_or_null<Metadata>(getField(DbgNode, Elt)));
+ return Changed;
}
bool llvm::StripDebugInfo(Module &M) {
@@ -984,16 +353,11 @@ bool llvm::StripDebugInfo(Module &M) {
}
}
- for (Module::iterator MI = M.begin(), ME = M.end(); MI != ME; ++MI)
- for (Function::iterator FI = MI->begin(), FE = MI->end(); FI != FE;
- ++FI)
- for (BasicBlock::iterator BI = FI->begin(), BE = FI->end(); BI != BE;
- ++BI) {
- if (!BI->getDebugLoc().isUnknown()) {
- Changed = true;
- BI->setDebugLoc(DebugLoc());
- }
- }
+ for (Function &F : M)
+ Changed |= stripDebugInfo(F);
+
+ if (GVMaterializer *Materializer = M.getMaterializer())
+ Materializer->setStripDebugInfo();
return Changed;
}
@@ -1014,11 +378,9 @@ llvm::makeSubprogramMap(const Module &M) {
return R;
for (MDNode *N : CU_Nodes->operands()) {
- DICompileUnit CUNode(N);
- DIArray SPs = CUNode.getSubprograms();
- for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
- DISubprogram SP(SPs.getElement(i));
- if (Function *F = SP.getFunction())
+ DICompileUnit CUNode = cast<MDCompileUnit>(N);
+ for (DISubprogram SP : CUNode->getSubprograms()) {
+ if (Function *F = SP->getFunction())
R.insert(std::make_pair(F, SP));
}
}
generated by cgit v1.1 at 2024-04-28 15:14:52 +0000