#include "llvm/Intrinsics.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Instructions.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Analysis/ValueTracking.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/DebugLoc.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
+using namespace llvm::dwarf;
//===----------------------------------------------------------------------===//
// DIDescriptor
//===----------------------------------------------------------------------===//
-DIDescriptor::DIDescriptor(GlobalVariable *gv, unsigned RequiredTag) {
- GV = gv;
+/// ValidDebugInfo - Return true if V represents valid debug info value.
+/// FIXME : Add DIDescriptor.isValid()
+bool DIDescriptor::ValidDebugInfo(MDNode *N, CodeGenOpt::Level OptLevel) {
+ if (!N)
+ return false;
+
+ DIDescriptor DI(N);
+
+ // Check current version. Allow Version6 for now.
+ unsigned Version = DI.getVersion();
+ if (Version != LLVMDebugVersion && Version != LLVMDebugVersion6)
+ return false;
+
+ unsigned Tag = DI.getTag();
+ switch (Tag) {
+ case DW_TAG_variable:
+ assert(DIVariable(N).Verify() && "Invalid DebugInfo value");
+ break;
+ case DW_TAG_compile_unit:
+ assert(DICompileUnit(N).Verify() && "Invalid DebugInfo value");
+ break;
+ case DW_TAG_subprogram:
+ assert(DISubprogram(N).Verify() && "Invalid DebugInfo value");
+ break;
+ case DW_TAG_lexical_block:
+ // FIXME: This interfers with the quality of generated code during
+ // optimization.
+ if (OptLevel != CodeGenOpt::None)
+ return false;
+ // FALLTHROUGH
+ default:
+ break;
+ }
+
+ return true;
+}
+
+DIDescriptor::DIDescriptor(MDNode *N, unsigned RequiredTag) {
+ DbgNode = N;
- // If this is non-null, check to see if the Tag matches. If not, set to null.
- if (GV && getTag() != RequiredTag)
- GV = 0;
+ // If this is non-null, check to see if the Tag matches. If not, set to null.
+ if (N && getTag() != RequiredTag) {
+ DbgNode = 0;
+ }
}
+const std::string &
+DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
+ Result.clear();
+ if (DbgNode == 0)
+ return Result;
-std::string DIDescriptor::getStringField(unsigned Elt) const {
- if (GV == 0) return "";
- Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
- return "";
+ if (Elt < DbgNode->getNumElements())
+ if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getElement(Elt))) {
+ Result.assign(MDS->begin(), MDS->begin() + MDS->length());
+ return Result;
+ }
- std::string Result;
- // Fills in the string if it succeeds
- if (!GetConstantStringInfo(C->getOperand(Elt), Result))
- Result.clear();
return Result;
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
- if (GV == 0) return 0;
- Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
+ if (DbgNode == 0)
return 0;
- if (ConstantInt *CI = dyn_cast<ConstantInt>(C->getOperand(Elt)))
- return CI->getZExtValue();
+
+ if (Elt < DbgNode->getNumElements())
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(DbgNode->getElement(Elt)))
+ return CI->getZExtValue();
+
return 0;
}
-
DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
- if (GV == 0) return DIDescriptor();
- Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
+ if (DbgNode == 0)
return DIDescriptor();
- C = C->getOperand(Elt);
- return DIDescriptor(dyn_cast<GlobalVariable>(C->stripPointerCasts()));
+
+ if (Elt < DbgNode->getNumElements() && DbgNode->getElement(Elt))
+ return DIDescriptor(dyn_cast<MDNode>(DbgNode->getElement(Elt)));
+
+ return DIDescriptor();
}
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
- if (GV == 0) return 0;
- Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
+ if (DbgNode == 0)
return 0;
- C = C->getOperand(Elt);
-
- return dyn_cast<GlobalVariable>(C->stripPointerCasts());
-}
-
+ if (Elt < DbgNode->getNumElements())
+ return dyn_cast<GlobalVariable>(DbgNode->getElement(Elt));
+ return 0;
+}
//===----------------------------------------------------------------------===//
-// Simple Descriptor Constructors and other Methods
+// Predicates
//===----------------------------------------------------------------------===//
-DIAnchor::DIAnchor(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_anchor) {}
-DIEnumerator::DIEnumerator(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_enumerator) {}
-DISubrange::DISubrange(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_subrange_type) {}
-DICompileUnit::DICompileUnit(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_compile_unit) {}
-DIBasicType::DIBasicType(GlobalVariable *GV)
- : DIType(GV, dwarf::DW_TAG_base_type) {}
-DISubprogram::DISubprogram(GlobalVariable *GV)
- : DIGlobal(GV, dwarf::DW_TAG_subprogram) {}
-DIGlobalVariable::DIGlobalVariable(GlobalVariable *GV)
- : DIGlobal(GV, dwarf::DW_TAG_variable) {}
-DIBlock::DIBlock(GlobalVariable *GV)
- : DIDescriptor(GV, dwarf::DW_TAG_lexical_block) {}
-// needed by DIVariable::getType()
-DIType::DIType(GlobalVariable *gv) : DIDescriptor(gv) {
- if (!gv) return;
- unsigned tag = getTag();
- if (tag != dwarf::DW_TAG_base_type && !DIDerivedType::isDerivedType(tag) &&
- !DICompositeType::isCompositeType(tag))
- GV = 0;
-}
-
-/// isDerivedType - Return true if the specified tag is legal for
-/// DIDerivedType.
-bool DIDerivedType::isDerivedType(unsigned Tag) {
+/// isBasicType - Return true if the specified tag is legal for
+/// DIBasicType.
+bool DIDescriptor::isBasicType() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
+ return Tag == dwarf::DW_TAG_base_type;
+}
+
+/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
+bool DIDescriptor::isDerivedType() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
switch (Tag) {
case dwarf::DW_TAG_typedef:
case dwarf::DW_TAG_pointer_type:
case dwarf::DW_TAG_inheritance:
return true;
default:
- // FIXME: Even though it doesn't make sense, CompositeTypes are current
- // modelled as DerivedTypes, this should return true for them as well.
- return false;
+ // CompositeTypes are currently modelled as DerivedTypes.
+ return isCompositeType();
}
}
-DIDerivedType::DIDerivedType(GlobalVariable *GV) : DIType(GV, true, true) {
- if (GV && !isDerivedType(getTag()))
- GV = 0;
-}
-
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
-bool DICompositeType::isCompositeType(unsigned TAG) {
- switch (TAG) {
+bool DIDescriptor::isCompositeType() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
+ switch (Tag) {
case dwarf::DW_TAG_array_type:
case dwarf::DW_TAG_structure_type:
case dwarf::DW_TAG_union_type:
case dwarf::DW_TAG_enumeration_type:
case dwarf::DW_TAG_vector_type:
case dwarf::DW_TAG_subroutine_type:
+ case dwarf::DW_TAG_class_type:
return true;
default:
return false;
}
}
-DICompositeType::DICompositeType(GlobalVariable *GV)
- : DIDerivedType(GV, true, true) {
- if (GV && !isCompositeType(getTag()))
- GV = 0;
-}
-
/// isVariable - Return true if the specified tag is legal for DIVariable.
-bool DIVariable::isVariable(unsigned Tag) {
+bool DIDescriptor::isVariable() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
switch (Tag) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
}
}
-DIVariable::DIVariable(GlobalVariable *GV) : DIDescriptor(GV) {
- if (GV && !isVariable(getTag()))
- GV = 0;
+/// isSubprogram - Return true if the specified tag is legal for
+/// DISubprogram.
+bool DIDescriptor::isSubprogram() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
+ return Tag == dwarf::DW_TAG_subprogram;
}
-unsigned DIArray::getNumElements() const {
- assert (GV && "Invalid DIArray");
- Constant *C = GV->getInitializer();
- assert (C && "Invalid DIArray initializer");
- return C->getNumOperands();
+/// isGlobalVariable - Return true if the specified tag is legal for
+/// DIGlobalVariable.
+bool DIDescriptor::isGlobalVariable() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
+ return Tag == dwarf::DW_TAG_variable;
}
-/// isSubrange - Return true if the specified tag is legal for DISubrange.
-bool DISubrange::isSubrange(unsigned Tag) {
- return Tag == dwarf::DW_TAG_subrange_type;
+/// isScope - Return true if the specified tag is one of the scope
+/// related tag.
+bool DIDescriptor::isScope() const {
+ assert (!isNull() && "Invalid descriptor!");
+ unsigned Tag = getTag();
+
+ switch (Tag) {
+ case dwarf::DW_TAG_compile_unit:
+ case dwarf::DW_TAG_lexical_block:
+ case dwarf::DW_TAG_subprogram:
+ return true;
+ default:
+ break;
+ }
+ return false;
}
//===----------------------------------------------------------------------===//
-// DIFactory: Basic Helpers
+// Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===//
-DIFactory::DIFactory(Module &m) : M(m) {
- StopPointFn = FuncStartFn = RegionStartFn = RegionEndFn = DeclareFn = 0;
- EmptyStructPtr = PointerType::getUnqual(StructType::get(NULL, NULL));
+DIType::DIType(MDNode *N) : DIDescriptor(N) {
+ if (!N) return;
+ if (!isBasicType() && !isDerivedType() && !isCompositeType()) {
+ DbgNode = 0;
+ }
}
-/// getCastToEmpty - Return this descriptor as a Constant* with type '{}*'.
-/// This is only valid when the descriptor is non-null.
-Constant *DIFactory::getCastToEmpty(DIDescriptor D) {
- if (D.isNull()) return Constant::getNullValue(EmptyStructPtr);
- return ConstantExpr::getBitCast(D.getGV(), EmptyStructPtr);
+unsigned DIArray::getNumElements() const {
+ assert (DbgNode && "Invalid DIArray");
+ return DbgNode->getNumElements();
}
-Constant *DIFactory::GetTagConstant(unsigned TAG) {
- assert((TAG & DIDescriptor::VersionMask) == 0 &&
- "Tag too large for debug encoding!");
- return ConstantInt::get(Type::Int32Ty, TAG | DIDescriptor::Version7);
+/// replaceAllUsesWith - Replace all uses of debug info referenced by
+/// this descriptor. After this completes, the current debug info value
+/// is erased.
+void DIDerivedType::replaceAllUsesWith(DIDescriptor &D) {
+ if (isNull())
+ return;
+
+ assert (!D.isNull() && "Can not replace with null");
+ DbgNode->replaceAllUsesWith(D.getNode());
+ delete DbgNode;
}
-Constant *DIFactory::GetStringConstant(const std::string &String) {
- // Check string cache for previous edition.
- Constant *&Slot = StringCache[String];
-
- // Return Constant if previously defined.
- if (Slot) return Slot;
-
- const PointerType *DestTy = PointerType::getUnqual(Type::Int8Ty);
-
- // If empty string then use a sbyte* null instead.
- if (String.empty())
- return Slot = ConstantPointerNull::get(DestTy);
+/// Verify - Verify that a compile unit is well formed.
+bool DICompileUnit::Verify() const {
+ if (isNull())
+ return false;
+ std::string Res;
+ if (getFilename(Res).empty())
+ return false;
+ // It is possible that directory and produce string is empty.
+ return true;
+}
- // Construct string as an llvm constant.
- Constant *ConstStr = ConstantArray::get(String);
-
- // Otherwise create and return a new string global.
- GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
- GlobalVariable::InternalLinkage,
- ConstStr, ".str", &M);
- StrGV->setSection("llvm.metadata");
- return Slot = ConstantExpr::getBitCast(StrGV, DestTy);
-}
-
-/// GetOrCreateAnchor - Look up an anchor for the specified tag and name. If it
-/// already exists, return it. If not, create a new one and return it.
-DIAnchor DIFactory::GetOrCreateAnchor(unsigned TAG, const char *Name) {
- const Type *EltTy = StructType::get(Type::Int32Ty, Type::Int32Ty, NULL);
-
- // Otherwise, create the global or return it if already in the module.
- Constant *C = M.getOrInsertGlobal(Name, EltTy);
- assert(isa<GlobalVariable>(C) && "Incorrectly typed anchor?");
- GlobalVariable *GV = cast<GlobalVariable>(C);
-
- // If it has an initializer, it is already in the module.
- if (GV->hasInitializer())
- return SubProgramAnchor = DIAnchor(GV);
+/// Verify - Verify that a type descriptor is well formed.
+bool DIType::Verify() const {
+ if (isNull())
+ return false;
+ if (getContext().isNull())
+ return false;
+
+ DICompileUnit CU = getCompileUnit();
+ if (!CU.isNull() && !CU.Verify())
+ return false;
+ return true;
+}
+
+/// Verify - Verify that a composite type descriptor is well formed.
+bool DICompositeType::Verify() const {
+ if (isNull())
+ return false;
+ if (getContext().isNull())
+ return false;
+
+ DICompileUnit CU = getCompileUnit();
+ if (!CU.isNull() && !CU.Verify())
+ return false;
+ return true;
+}
+
+/// Verify - Verify that a subprogram descriptor is well formed.
+bool DISubprogram::Verify() const {
+ if (isNull())
+ return false;
- GV->setLinkage(GlobalValue::LinkOnceLinkage);
- GV->setSection("llvm.metadata");
- GV->setConstant(true);
- M.addTypeName("llvm.dbg.anchor.type", EltTy);
+ if (getContext().isNull())
+ return false;
+
+ DICompileUnit CU = getCompileUnit();
+ if (!CU.Verify())
+ return false;
+
+ DICompositeType Ty = getType();
+ if (!Ty.isNull() && !Ty.Verify())
+ return false;
+ return true;
+}
+
+/// Verify - Verify that a global variable descriptor is well formed.
+bool DIGlobalVariable::Verify() const {
+ if (isNull())
+ return false;
- // Otherwise, set the initializer.
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_anchor),
- ConstantInt::get(Type::Int32Ty, TAG)
- };
+ if (getContext().isNull())
+ return false;
+
+ DICompileUnit CU = getCompileUnit();
+ if (!CU.isNull() && !CU.Verify())
+ return false;
+
+ DIType Ty = getType();
+ if (!Ty.Verify())
+ return false;
+
+ if (!getGlobal())
+ return false;
+
+ return true;
+}
+
+/// Verify - Verify that a variable descriptor is well formed.
+bool DIVariable::Verify() const {
+ if (isNull())
+ return false;
- GV->setInitializer(ConstantStruct::get(Elts, 2));
- return DIAnchor(GV);
+ if (getContext().isNull())
+ return false;
+
+ DIType Ty = getType();
+ if (!Ty.Verify())
+ return false;
+
+ return true;
}
+/// getOriginalTypeSize - If this type is derived from a base type then
+/// return base type size.
+uint64_t DIDerivedType::getOriginalTypeSize() const {
+ if (getTag() != dwarf::DW_TAG_member)
+ return getSizeInBits();
+ DIType BT = getTypeDerivedFrom();
+ if (BT.getTag() != dwarf::DW_TAG_base_type)
+ return getSizeInBits();
+ return BT.getSizeInBits();
+}
+/// describes - Return true if this subprogram provides debugging
+/// information for the function F.
+bool DISubprogram::describes(const Function *F) {
+ assert (F && "Invalid function");
+ std::string Name;
+ getLinkageName(Name);
+ if (Name.empty())
+ getName(Name);
+ if (F->getName() == Name)
+ return true;
+ return false;
+}
//===----------------------------------------------------------------------===//
-// DIFactory: Primary Constructors
+// DIDescriptor: dump routines for all descriptors.
//===----------------------------------------------------------------------===//
-/// GetOrCreateCompileUnitAnchor - Return the anchor for compile units,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateCompileUnitAnchor() {
- // If we already created one, just return it.
- if (!CompileUnitAnchor.isNull())
- return CompileUnitAnchor;
- return CompileUnitAnchor = GetOrCreateAnchor(dwarf::DW_TAG_compile_unit,
- "llvm.dbg.compile_units");
+
+/// dump - Print descriptor.
+void DIDescriptor::dump() const {
+ errs() << "[" << dwarf::TagString(getTag()) << "] ";
+ errs().write_hex((intptr_t)DbgNode) << ']';
}
-/// GetOrCreateSubprogramAnchor - Return the anchor for subprograms,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateSubprogramAnchor() {
- // If we already created one, just return it.
- if (!SubProgramAnchor.isNull())
- return SubProgramAnchor;
- return SubProgramAnchor = GetOrCreateAnchor(dwarf::DW_TAG_subprogram,
- "llvm.dbg.subprograms");
+/// dump - Print compile unit.
+void DICompileUnit::dump() const {
+ if (getLanguage())
+ errs() << " [" << dwarf::LanguageString(getLanguage()) << "] ";
+
+ std::string Res1, Res2;
+ errs() << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]";
}
-/// GetOrCreateGlobalVariableAnchor - Return the anchor for globals,
-/// creating a new one if there isn't already one in the module.
-DIAnchor DIFactory::GetOrCreateGlobalVariableAnchor() {
- // If we already created one, just return it.
- if (!GlobalVariableAnchor.isNull())
- return GlobalVariableAnchor;
- return GlobalVariableAnchor = GetOrCreateAnchor(dwarf::DW_TAG_variable,
- "llvm.dbg.global_variables");
+/// dump - Print type.
+void DIType::dump() const {
+ if (isNull()) return;
+
+ std::string Res;
+ if (!getName(Res).empty())
+ errs() << " [" << Res << "] ";
+
+ unsigned Tag = getTag();
+ errs() << " [" << dwarf::TagString(Tag) << "] ";
+
+ // TODO : Print context
+ getCompileUnit().dump();
+ errs() << " ["
+ << getLineNumber() << ", "
+ << getSizeInBits() << ", "
+ << getAlignInBits() << ", "
+ << getOffsetInBits()
+ << "] ";
+
+ if (isPrivate())
+ errs() << " [private] ";
+ else if (isProtected())
+ errs() << " [protected] ";
+
+ if (isForwardDecl())
+ errs() << " [fwd] ";
+
+ if (isBasicType())
+ DIBasicType(DbgNode).dump();
+ else if (isDerivedType())
+ DIDerivedType(DbgNode).dump();
+ else if (isCompositeType())
+ DICompositeType(DbgNode).dump();
+ else {
+ errs() << "Invalid DIType\n";
+ return;
+ }
+
+ errs() << "\n";
}
+/// dump - Print basic type.
+void DIBasicType::dump() const {
+ errs() << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
+}
+
+/// dump - Print derived type.
+void DIDerivedType::dump() const {
+ errs() << "\n\t Derived From: "; getTypeDerivedFrom().dump();
+}
+
+/// dump - Print composite type.
+void DICompositeType::dump() const {
+ DIArray A = getTypeArray();
+ if (A.isNull())
+ return;
+ errs() << " [" << A.getNumElements() << " elements]";
+}
+
+/// dump - Print global.
+void DIGlobal::dump() const {
+ std::string Res;
+ if (!getName(Res).empty())
+ errs() << " [" << Res << "] ";
+
+ unsigned Tag = getTag();
+ errs() << " [" << dwarf::TagString(Tag) << "] ";
+
+ // TODO : Print context
+ getCompileUnit().dump();
+ errs() << " [" << getLineNumber() << "] ";
+
+ if (isLocalToUnit())
+ errs() << " [local] ";
+
+ if (isDefinition())
+ errs() << " [def] ";
+
+ if (isGlobalVariable())
+ DIGlobalVariable(DbgNode).dump();
+
+ errs() << "\n";
+}
+
+/// dump - Print subprogram.
+void DISubprogram::dump() const {
+ DIGlobal::dump();
+}
+
+/// dump - Print global variable.
+void DIGlobalVariable::dump() const {
+ errs() << " [";
+ getGlobal()->dump();
+ errs() << "] ";
+}
+
+/// dump - Print variable.
+void DIVariable::dump() const {
+ std::string Res;
+ if (!getName(Res).empty())
+ errs() << " [" << Res << "] ";
+
+ getCompileUnit().dump();
+ errs() << " [" << getLineNumber() << "] ";
+ getType().dump();
+ errs() << "\n";
+}
+
+//===----------------------------------------------------------------------===//
+// DIFactory: Basic Helpers
+//===----------------------------------------------------------------------===//
+
+DIFactory::DIFactory(Module &m)
+ : M(m), VMContext(M.getContext()), StopPointFn(0), FuncStartFn(0),
+ RegionStartFn(0), RegionEndFn(0),
+ DeclareFn(0) {
+ EmptyStructPtr = PointerType::getUnqual(StructType::get(VMContext));
+}
+
+Constant *DIFactory::GetTagConstant(unsigned TAG) {
+ assert((TAG & LLVMDebugVersionMask) == 0 &&
+ "Tag too large for debug encoding!");
+ return ConstantInt::get(Type::getInt32Ty(VMContext), TAG | LLVMDebugVersion);
+}
+
+//===----------------------------------------------------------------------===//
+// DIFactory: Primary Constructors
+//===----------------------------------------------------------------------===//
+
/// GetOrCreateArray - Create an descriptor for an array of descriptors.
/// This implicitly uniques the arrays created.
DIArray DIFactory::GetOrCreateArray(DIDescriptor *Tys, unsigned NumTys) {
- SmallVector<Constant*, 16> Elts;
+ SmallVector<Value*, 16> Elts;
- for (unsigned i = 0; i != NumTys; ++i)
- Elts.push_back(getCastToEmpty(Tys[i]));
-
- Constant *Init = ConstantArray::get(ArrayType::get(EmptyStructPtr,
- Elts.size()),
- &Elts[0], Elts.size());
- // If we already have this array, just return the uniqued version.
- DIDescriptor &Entry = SimpleConstantCache[Init];
- if (!Entry.isNull()) return DIArray(Entry.getGV());
-
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.array", &M);
- GV->setSection("llvm.metadata");
- Entry = DIDescriptor(GV);
- return DIArray(GV);
+ if (NumTys == 0)
+ Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
+ else
+ for (unsigned i = 0; i != NumTys; ++i)
+ Elts.push_back(Tys[i].getNode());
+
+ return DIArray(MDNode::get(VMContext,Elts.data(), Elts.size()));
}
/// GetOrCreateSubrange - Create a descriptor for a value range. This
/// implicitly uniques the values returned.
DISubrange DIFactory::GetOrCreateSubrange(int64_t Lo, int64_t Hi) {
- Constant *Elts[] = {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subrange_type),
- ConstantInt::get(Type::Int64Ty, Lo),
- ConstantInt::get(Type::Int64Ty, Hi)
+ ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
+ ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
};
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- // If we already have this range, just return the uniqued version.
- DIDescriptor &Entry = SimpleConstantCache[Init];
- if (!Entry.isNull()) return DISubrange(Entry.getGV());
-
- M.addTypeName("llvm.dbg.subrange.type", Init->getType());
-
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.subrange", &M);
- GV->setSection("llvm.metadata");
- Entry = DIDescriptor(GV);
- return DISubrange(GV);
+ return DISubrange(MDNode::get(VMContext, &Elts[0], 3));
}
DICompileUnit DIFactory::CreateCompileUnit(unsigned LangID,
const std::string &Filename,
const std::string &Directory,
- const std::string &Producer) {
- Constant *Elts[] = {
+ const std::string &Producer,
+ bool isMain,
+ bool isOptimized,
+ const char *Flags,
+ unsigned RunTimeVer) {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_compile_unit),
- getCastToEmpty(GetOrCreateCompileUnitAnchor()),
- ConstantInt::get(Type::Int32Ty, LangID),
- GetStringConstant(Filename),
- GetStringConstant(Directory),
- GetStringConstant(Producer)
+ llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LangID),
+ MDString::get(VMContext, Filename),
+ MDString::get(VMContext, Directory),
+ MDString::get(VMContext, Producer),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isMain),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
+ MDString::get(VMContext, Flags),
+ ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer)
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.compile_unit.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.compile_unit", &M);
- GV->setSection("llvm.metadata");
- return DICompileUnit(GV);
+
+ return DICompileUnit(MDNode::get(VMContext, &Elts[0], 10));
}
/// CreateEnumerator - Create a single enumerator value.
DIEnumerator DIFactory::CreateEnumerator(const std::string &Name, uint64_t Val){
- Constant *Elts[] = {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_enumerator),
- GetStringConstant(Name),
- ConstantInt::get(Type::Int64Ty, Val)
+ MDString::get(VMContext, Name),
+ ConstantInt::get(Type::getInt64Ty(VMContext), Val)
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.enumerator.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.enumerator", &M);
- GV->setSection("llvm.metadata");
- return DIEnumerator(GV);
+ return DIEnumerator(MDNode::get(VMContext, &Elts[0], 3));
}
uint64_t SizeInBits,
uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
- unsigned Encoding,
- const std::string *FileName,
- const std::string *Directory) {
- Constant *Elts[] = {
+ unsigned Encoding) {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_base_type),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNumber),
- ConstantInt::get(Type::Int64Ty, SizeInBits),
- ConstantInt::get(Type::Int64Ty, AlignInBits),
- ConstantInt::get(Type::Int64Ty, OffsetInBits),
- ConstantInt::get(Type::Int32Ty, Flags),
- ConstantInt::get(Type::Int32Ty, Encoding),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+ ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
+ ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+ ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.basictype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.basictype", &M);
- GV->setSection("llvm.metadata");
- return DIBasicType(GV);
+ return DIBasicType(MDNode::get(VMContext, &Elts[0], 10));
}
/// CreateDerivedType - Create a derived type like const qualified type,
uint64_t AlignInBits,
uint64_t OffsetInBits,
unsigned Flags,
- DIType DerivedFrom,
- const std::string *FileName,
- const std::string *Directory) {
- Constant *Elts[] = {
+ DIType DerivedFrom) {
+ Value *Elts[] = {
GetTagConstant(Tag),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNumber),
- ConstantInt::get(Type::Int64Ty, SizeInBits),
- ConstantInt::get(Type::Int64Ty, AlignInBits),
- ConstantInt::get(Type::Int64Ty, OffsetInBits),
- ConstantInt::get(Type::Int32Ty, Flags),
- getCastToEmpty(DerivedFrom),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+ ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
+ ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+ DerivedFrom.getNode(),
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.derivedtype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.derivedtype", &M);
- GV->setSection("llvm.metadata");
- return DIDerivedType(GV);
+ return DIDerivedType(MDNode::get(VMContext, &Elts[0], 10));
}
/// CreateCompositeType - Create a composite type like array, struct, etc.
unsigned Flags,
DIType DerivedFrom,
DIArray Elements,
- const std::string *FileName,
- const std::string *Directory) {
+ unsigned RuntimeLang) {
- Constant *Elts[] = {
+ Value *Elts[] = {
GetTagConstant(Tag),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNumber),
- ConstantInt::get(Type::Int64Ty, SizeInBits),
- ConstantInt::get(Type::Int64Ty, AlignInBits),
- ConstantInt::get(Type::Int64Ty, OffsetInBits),
- ConstantInt::get(Type::Int32Ty, Flags),
- getCastToEmpty(DerivedFrom),
- getCastToEmpty(Elements),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+ ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+ ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
+ ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+ DerivedFrom.getNode(),
+ Elements.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.composite.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.composite", &M);
- GV->setSection("llvm.metadata");
- return DICompositeType(GV);
+ return DICompositeType(MDNode::get(VMContext, &Elts[0], 12));
}
DICompileUnit CompileUnit,
unsigned LineNo, DIType Type,
bool isLocalToUnit,
- bool isDefinition,
- const std::string *FileName,
- const std::string *Directory) {
+ bool isDefinition) {
- Constant *Elts[] = {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subprogram),
- getCastToEmpty(GetOrCreateSubprogramAnchor()),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- GetStringConstant(DisplayName),
- GetStringConstant(LinkageName),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNo),
- getCastToEmpty(Type),
- ConstantInt::get(Type::Int1Ty, isLocalToUnit),
- ConstantInt::get(Type::Int1Ty, isDefinition),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ MDString::get(VMContext, DisplayName),
+ MDString::get(VMContext, LinkageName),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+ Type.getNode(),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition)
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.subprogram.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.subprogram", &M);
- GV->setSection("llvm.metadata");
- return DISubprogram(GV);
+ return DISubprogram(MDNode::get(VMContext, &Elts[0], 11));
}
/// CreateGlobalVariable - Create a new descriptor for the specified global.
const std::string &LinkageName,
DICompileUnit CompileUnit,
unsigned LineNo, DIType Type,bool isLocalToUnit,
- bool isDefinition, llvm::GlobalVariable *Val,
- const std::string *FileName,
- const std::string *Directory) {
- Constant *Elts[] = {
+ bool isDefinition, llvm::GlobalVariable *Val) {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_variable),
- getCastToEmpty(GetOrCreateGlobalVariableAnchor()),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- GetStringConstant(DisplayName),
- GetStringConstant(LinkageName),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNo),
- getCastToEmpty(Type),
- ConstantInt::get(Type::Int1Ty, isLocalToUnit),
- ConstantInt::get(Type::Int1Ty, isDefinition),
- ConstantExpr::getBitCast(Val, EmptyStructPtr),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ MDString::get(VMContext, DisplayName),
+ MDString::get(VMContext, LinkageName),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+ Type.getNode(),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
+ ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
+ Val
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.global_variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.global_variable", &M);
- GV->setSection("llvm.metadata");
- return DIGlobalVariable(GV);
+
+ Value *const *Vs = &Elts[0];
+ MDNode *Node = MDNode::get(VMContext,Vs, 12);
+
+ // Create a named metadata so that we do not lose this mdnode.
+ NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
+ NMD->addElement(Node);
+
+ return DIGlobalVariable(Node);
}
DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context,
const std::string &Name,
DICompileUnit CompileUnit, unsigned LineNo,
- DIType Type,
- const std::string *FileName,
- const std::string *Directory) {
-
-
- Constant *Elts[] = {
+ DIType Type) {
+ Value *Elts[] = {
GetTagConstant(Tag),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNo),
- getCastToEmpty(Type),
- GetStringConstant(FileName ? FileName->c_str() : ""),
- GetStringConstant(Directory ? Directory->c_str() : "")
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+ Type.getNode(),
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.variable", &M);
- GV->setSection("llvm.metadata");
- return DIVariable(GV);
+ return DIVariable(MDNode::get(VMContext, &Elts[0], 6));
}
/// CreateBlock - This creates a descriptor for a lexical block with the
-/// specified parent context.
+/// specified parent VMContext.
DIBlock DIFactory::CreateBlock(DIDescriptor Context) {
- Constant *Elts[] = {
+ Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_lexical_block),
- getCastToEmpty(Context)
+ Context.getNode()
};
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.block.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.block", &M);
- GV->setSection("llvm.metadata");
- return DIBlock(GV);
+ return DIBlock(MDNode::get(VMContext, &Elts[0], 2));
}
// Invoke llvm.dbg.stoppoint
Value *Args[] = {
- llvm::ConstantInt::get(llvm::Type::Int32Ty, LineNo),
- llvm::ConstantInt::get(llvm::Type::Int32Ty, ColNo),
- getCastToEmpty(CU)
+ ConstantInt::get(llvm::Type::getInt32Ty(VMContext), LineNo),
+ ConstantInt::get(llvm::Type::getInt32Ty(VMContext), ColNo),
+ CU.getNode()
};
CallInst::Create(StopPointFn, Args, Args+3, "", BB);
}
void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) {
// Lazily construct llvm.dbg.func.start.
if (!FuncStartFn)
- FuncStartFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_func_start);
+ FuncStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_func_start);
// Call llvm.dbg.func.start which also implicitly sets a stoppoint.
- CallInst::Create(FuncStartFn, getCastToEmpty(SP), "", BB);
+ CallInst::Create(FuncStartFn, SP.getNode(), "", BB);
}
/// InsertRegionStart - Insert a new llvm.dbg.region.start intrinsic call to
void DIFactory::InsertRegionStart(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.start function.
if (!RegionStartFn)
- RegionStartFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_region_start);
+ RegionStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_start);
+
// Call llvm.dbg.func.start.
- CallInst::Create(RegionStartFn, getCastToEmpty(D), "", BB);
+ CallInst::Create(RegionStartFn, D.getNode(), "", BB);
}
-
/// InsertRegionEnd - Insert a new llvm.dbg.region.end intrinsic call to
/// mark the end of a region for the specified scoping descriptor.
void DIFactory::InsertRegionEnd(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.end function.
if (!RegionEndFn)
- RegionEndFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_region_end);
-
- CallInst::Create(RegionEndFn, getCastToEmpty(D), "", BB);
+ RegionEndFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_end);
+
+ // Call llvm.dbg.region.end.
+ CallInst::Create(RegionEndFn, D.getNode(), "", BB);
}
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
-void DIFactory::InsertDeclare(llvm::Value *Storage, DIVariable D,
- BasicBlock *BB) {
+void DIFactory::InsertDeclare(Value *Storage, DIVariable D, BasicBlock *BB) {
// Cast the storage to a {}* for the call to llvm.dbg.declare.
- Storage = new llvm::BitCastInst(Storage, EmptyStructPtr, "", BB);
+ Storage = new BitCastInst(Storage, EmptyStructPtr, "", BB);
if (!DeclareFn)
- DeclareFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_declare);
- Value *Args[] = { Storage, getCastToEmpty(D) };
+ DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
+
+ Value *Args[] = { Storage, D.getNode() };
CallInst::Create(DeclareFn, Args, Args+2, "", BB);
}
+
+//===----------------------------------------------------------------------===//
+// DebugInfoFinder implementations.
+//===----------------------------------------------------------------------===//
+
+/// processModule - Process entire module and collect debug info.
+void DebugInfoFinder::processModule(Module &M) {
+
+
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
+ for (Function::iterator FI = (*I).begin(), FE = (*I).end(); FI != FE; ++FI)
+ for (BasicBlock::iterator BI = (*FI).begin(), BE = (*FI).end(); BI != BE;
+ ++BI) {
+ if (DbgStopPointInst *SPI = dyn_cast<DbgStopPointInst>(BI))
+ processStopPoint(SPI);
+ else if (DbgFuncStartInst *FSI = dyn_cast<DbgFuncStartInst>(BI))
+ processFuncStart(FSI);
+ else if (DbgRegionStartInst *DRS = dyn_cast<DbgRegionStartInst>(BI))
+ processRegionStart(DRS);
+ else if (DbgRegionEndInst *DRE = dyn_cast<DbgRegionEndInst>(BI))
+ processRegionEnd(DRE);
+ else if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
+ processDeclare(DDI);
+ }
+
+ NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
+ if (!NMD)
+ return;
+
+ for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
+ DIGlobalVariable DIG(cast<MDNode>(NMD->getElement(i)));
+ if (addGlobalVariable(DIG)) {
+ addCompileUnit(DIG.getCompileUnit());
+ processType(DIG.getType());
+ }
+ }
+}
+
+/// processType - Process DIType.
+void DebugInfoFinder::processType(DIType DT) {
+ if (!addType(DT))
+ return;
+
+ addCompileUnit(DT.getCompileUnit());
+ if (DT.isCompositeType()) {
+ DICompositeType DCT(DT.getNode());
+ processType(DCT.getTypeDerivedFrom());
+ DIArray DA = DCT.getTypeArray();
+ if (!DA.isNull())
+ for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
+ DIDescriptor D = DA.getElement(i);
+ DIType TypeE = DIType(D.getNode());
+ if (!TypeE.isNull())
+ processType(TypeE);
+ else
+ processSubprogram(DISubprogram(D.getNode()));
+ }
+ } else if (DT.isDerivedType()) {
+ DIDerivedType DDT(DT.getNode());
+ if (!DDT.isNull())
+ processType(DDT.getTypeDerivedFrom());
+ }
+}
+
+/// processSubprogram - Process DISubprogram.
+void DebugInfoFinder::processSubprogram(DISubprogram SP) {
+ if (SP.isNull())
+ return;
+ if (!addSubprogram(SP))
+ return;
+ addCompileUnit(SP.getCompileUnit());
+ processType(SP.getType());
+}
+
+/// processStopPoint - Process DbgStopPointInst.
+void DebugInfoFinder::processStopPoint(DbgStopPointInst *SPI) {
+ MDNode *Context = dyn_cast<MDNode>(SPI->getContext());
+ addCompileUnit(DICompileUnit(Context));
+}
+
+/// processFuncStart - Process DbgFuncStartInst.
+void DebugInfoFinder::processFuncStart(DbgFuncStartInst *FSI) {
+ MDNode *SP = dyn_cast<MDNode>(FSI->getSubprogram());
+ processSubprogram(DISubprogram(SP));
+}
+
+/// processRegionStart - Process DbgRegionStart.
+void DebugInfoFinder::processRegionStart(DbgRegionStartInst *DRS) {
+ MDNode *SP = dyn_cast<MDNode>(DRS->getContext());
+ processSubprogram(DISubprogram(SP));
+}
+
+/// processRegionEnd - Process DbgRegionEnd.
+void DebugInfoFinder::processRegionEnd(DbgRegionEndInst *DRE) {
+ MDNode *SP = dyn_cast<MDNode>(DRE->getContext());
+ processSubprogram(DISubprogram(SP));
+}
+
+/// processDeclare - Process DbgDeclareInst.
+void DebugInfoFinder::processDeclare(DbgDeclareInst *DDI) {
+ DIVariable DV(cast<MDNode>(DDI->getVariable()));
+ if (DV.isNull())
+ return;
+
+ if (!NodesSeen.insert(DV.getNode()))
+ return;
+
+ addCompileUnit(DV.getCompileUnit());
+ processType(DV.getType());
+}
+
+/// addType - Add type into Tys.
+bool DebugInfoFinder::addType(DIType DT) {
+ if (DT.isNull())
+ return false;
+
+ if (!NodesSeen.insert(DT.getNode()))
+ return false;
+
+ TYs.push_back(DT.getNode());
+ return true;
+}
+
+/// addCompileUnit - Add compile unit into CUs.
+bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
+ if (CU.isNull())
+ return false;
+
+ if (!NodesSeen.insert(CU.getNode()))
+ return false;
+
+ CUs.push_back(CU.getNode());
+ return true;
+}
+
+/// addGlobalVariable - Add global variable into GVs.
+bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
+ if (DIG.isNull())
+ return false;
+
+ if (!NodesSeen.insert(DIG.getNode()))
+ return false;
+
+ GVs.push_back(DIG.getNode());
+ return true;
+}
+
+// addSubprogram - Add subprgoram into SPs.
+bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
+ if (SP.isNull())
+ return false;
+
+ if (!NodesSeen.insert(SP.getNode()))
+ return false;
+
+ SPs.push_back(SP.getNode());
+ return true;
+}
+
namespace llvm {
- /// Finds the stoppoint coressponding to this instruction, that is the
- /// stoppoint that dominates this instruction
- const DbgStopPointInst *findStopPoint(const Instruction *Inst)
- {
+ /// findStopPoint - Find the stoppoint coressponding to this instruction, that
+ /// is the stoppoint that dominates this instruction.
+ const DbgStopPointInst *findStopPoint(const Instruction *Inst) {
if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(Inst))
return DSI;
const BasicBlock *BB = Inst->getParent();
BasicBlock::const_iterator I = Inst, B;
- do {
+ while (BB) {
B = BB->begin();
+
// A BB consisting only of a terminator can't have a stoppoint.
- if (I != B) {
- do {
- --I;
- if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
- return DSI;
- } while (I != B);
+ while (I != B) {
+ --I;
+ if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
+ return DSI;
}
- // This BB didn't have a stoppoint: if there is only one
- // predecessor, look for a stoppoint there.
- // We could use getIDom(), but that would require dominator info.
+
+ // This BB didn't have a stoppoint: if there is only one predecessor, look
+ // for a stoppoint there. We could use getIDom(), but that would require
+ // dominator info.
BB = I->getParent()->getUniquePredecessor();
if (BB)
I = BB->getTerminator();
- } while (BB != 0);
+ }
+
return 0;
}
- /// Finds the stoppoint corresponding to first real (non-debug intrinsic)
- /// instruction in this Basic Block, and returns the stoppoint for it.
- const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB)
- {
- for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
+ /// findBBStopPoint - Find the stoppoint corresponding to first real
+ /// (non-debug intrinsic) instruction in this Basic Block, and return the
+ /// stoppoint for it.
+ const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB) {
+ for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
return DSI;
- }
- // Fallback to looking for stoppoint of unique predecessor.
- // Useful if this BB contains no stoppoints, but unique predecessor does.
+
+ // Fallback to looking for stoppoint of unique predecessor. Useful if this
+ // BB contains no stoppoints, but unique predecessor does.
BB = BB->getUniquePredecessor();
if (BB)
return findStopPoint(BB->getTerminator());
+
return 0;
}
- /// Finds the dbg.declare intrinsic corresponding to this value if any.
+ Value *findDbgGlobalDeclare(GlobalVariable *V) {
+ const Module *M = V->getParent();
+ NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
+ if (!NMD)
+ return 0;
+
+ for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
+ DIGlobalVariable DIG(cast_or_null<MDNode>(NMD->getElement(i)));
+ if (DIG.isNull())
+ continue;
+ if (DIG.getGlobal() == V)
+ return DIG.getNode();
+ }
+ return 0;
+ }
+
+ /// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
/// It looks through pointer casts too.
- const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts)
- {
+ const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts) {
if (stripCasts) {
V = V->stripPointerCasts();
+
// Look for the bitcast.
for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
- I != E; ++I) {
+ I != E; ++I)
if (isa<BitCastInst>(I))
return findDbgDeclare(*I, false);
- }
+
return 0;
}
- // Find dbg.declare among uses of the instruction.
+ // Find llvm.dbg.declare among uses of the instruction.
for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
- I != E; ++I) {
+ I != E; ++I)
if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I))
return DDI;
- }
+
return 0;
}
-}
+ bool getLocationInfo(const Value *V, std::string &DisplayName,
+ std::string &Type, unsigned &LineNo, std::string &File,
+ std::string &Dir) {
+ DICompileUnit Unit;
+ DIType TypeD;
+
+ if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
+ Value *DIGV = findDbgGlobalDeclare(GV);
+ if (!DIGV) return false;
+ DIGlobalVariable Var(cast<MDNode>(DIGV));
+
+ Var.getDisplayName(DisplayName);
+ LineNo = Var.getLineNumber();
+ Unit = Var.getCompileUnit();
+ TypeD = Var.getType();
+ } else {
+ const DbgDeclareInst *DDI = findDbgDeclare(V);
+ if (!DDI) return false;
+ DIVariable Var(cast<MDNode>(DDI->getVariable()));
+
+ Var.getName(DisplayName);
+ LineNo = Var.getLineNumber();
+ Unit = Var.getCompileUnit();
+ TypeD = Var.getType();
+ }
+
+ TypeD.getName(Type);
+ Unit.getFilename(File);
+ Unit.getDirectory(Dir);
+ return true;
+ }
+
+ /// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgStopPointInst &SPI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(SPI.getContext(), OptLev);
+ }
+
+ /// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(FSI.getSubprogram(), OptLev);
+ }
+
+ /// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(RSI.getContext(), OptLev);
+ }
+
+ /// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionEndInst &REI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(REI.getContext(), OptLev);
+ }
+
+
+ /// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgDeclareInst &DI,
+ CodeGenOpt::Level OptLev) {
+ return DIDescriptor::ValidDebugInfo(DI.getVariable(), OptLev);
+ }
+
+ /// ExtractDebugLocation - Extract debug location information
+ /// from llvm.dbg.stoppoint intrinsic.
+ DebugLoc ExtractDebugLocation(DbgStopPointInst &SPI,
+ DebugLocTracker &DebugLocInfo) {
+ DebugLoc DL;
+ Value *Context = SPI.getContext();
+
+ // If this location is already tracked then use it.
+ DebugLocTuple Tuple(cast<MDNode>(Context), SPI.getLine(),
+ SPI.getColumn());
+ DenseMap<DebugLocTuple, unsigned>::iterator II
+ = DebugLocInfo.DebugIdMap.find(Tuple);
+ if (II != DebugLocInfo.DebugIdMap.end())
+ return DebugLoc::get(II->second);
+
+ // Add a new location entry.
+ unsigned Id = DebugLocInfo.DebugLocations.size();
+ DebugLocInfo.DebugLocations.push_back(Tuple);
+ DebugLocInfo.DebugIdMap[Tuple] = Id;
+
+ return DebugLoc::get(Id);
+ }
+
+ /// ExtractDebugLocation - Extract debug location information
+ /// from llvm.dbg.func_start intrinsic.
+ DebugLoc ExtractDebugLocation(DbgFuncStartInst &FSI,
+ DebugLocTracker &DebugLocInfo) {
+ DebugLoc DL;
+ Value *SP = FSI.getSubprogram();
+
+ DISubprogram Subprogram(cast<MDNode>(SP));
+ unsigned Line = Subprogram.getLineNumber();
+ DICompileUnit CU(Subprogram.getCompileUnit());
+
+ // If this location is already tracked then use it.
+ DebugLocTuple Tuple(CU.getNode(), Line, /* Column */ 0);
+ DenseMap<DebugLocTuple, unsigned>::iterator II
+ = DebugLocInfo.DebugIdMap.find(Tuple);
+ if (II != DebugLocInfo.DebugIdMap.end())
+ return DebugLoc::get(II->second);
+
+ // Add a new location entry.
+ unsigned Id = DebugLocInfo.DebugLocations.size();
+ DebugLocInfo.DebugLocations.push_back(Tuple);
+ DebugLocInfo.DebugIdMap[Tuple] = Id;
+
+ return DebugLoc::get(Id);
+ }
+
+ /// isInlinedFnStart - Return true if FSI is starting an inlined function.
+ bool isInlinedFnStart(DbgFuncStartInst &FSI, const Function *CurrentFn) {
+ DISubprogram Subprogram(cast<MDNode>(FSI.getSubprogram()));
+ if (Subprogram.describes(CurrentFn))
+ return false;
+
+ return true;
+ }
+
+ /// isInlinedFnEnd - Return true if REI is ending an inlined function.
+ bool isInlinedFnEnd(DbgRegionEndInst &REI, const Function *CurrentFn) {
+ DISubprogram Subprogram(cast<MDNode>(REI.getContext()));
+ if (Subprogram.isNull() || Subprogram.describes(CurrentFn))
+ return false;
+
+ return true;
+ }
+}
projects / oota-llvm.git / blobdiff