#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/ADT/SmallString.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/DebugLoc.h"
-#include "llvm/Support/Streams.h"
-
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::dwarf;
// DIDescriptor
//===----------------------------------------------------------------------===//
-/// ValidDebugInfo - Return true if V represents valid debug info value.
-bool DIDescriptor::ValidDebugInfo(Value *V, CodeGenOpt::Level OptLevel) {
- if (!V)
- return false;
-
- GlobalVariable *GV = dyn_cast<GlobalVariable>(V->stripPointerCasts());
- if (!GV)
- return false;
-
- if (!GV->hasInternalLinkage () && !GV->hasLinkOnceLinkage())
- return false;
-
- DIDescriptor DI(GV);
-
- // Check current version. Allow Version6 for now.
- unsigned Version = DI.getVersion();
- if (Version != LLVMDebugVersion && Version != LLVMDebugVersion6)
- return false;
+DIDescriptor::DIDescriptor(const DIFile F) : DbgNode(F.DbgNode) {
+}
- unsigned Tag = DI.getTag();
- switch (Tag) {
- case DW_TAG_variable:
- assert(DIVariable(GV).Verify() && "Invalid DebugInfo value");
- break;
- case DW_TAG_compile_unit:
- assert(DICompileUnit(GV).Verify() && "Invalid DebugInfo value");
- break;
- case DW_TAG_subprogram:
- assert(DISubprogram(GV).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;
- }
+DIDescriptor::DIDescriptor(const DISubprogram F) : DbgNode(F.DbgNode) {
+}
- return true;
+DIDescriptor::DIDescriptor(const DILexicalBlock F) : DbgNode(F.DbgNode) {
}
-DIDescriptor::DIDescriptor(GlobalVariable *GV, unsigned RequiredTag) {
- DbgGV = GV;
-
- // If this is non-null, check to see if the Tag matches. If not, set to null.
- if (GV && getTag() != RequiredTag)
- DbgGV = 0;
+DIDescriptor::DIDescriptor(const DIVariable F) : DbgNode(F.DbgNode) {
}
-const std::string &
-DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
- if (DbgGV == 0) {
- Result.clear();
- return Result;
- }
+DIDescriptor::DIDescriptor(const DIType F) : DbgNode(F.DbgNode) {
+}
- Constant *C = DbgGV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands()) {
- Result.clear();
- return Result;
- }
+StringRef
+DIDescriptor::getStringField(unsigned Elt) const {
+ if (DbgNode == 0)
+ return StringRef();
- // Fills in the string if it succeeds
- if (!GetConstantStringInfo(C->getOperand(Elt), Result))
- Result.clear();
+ if (Elt < DbgNode->getNumOperands())
+ if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getOperand(Elt)))
+ return MDS->getString();
- return Result;
+ return StringRef();
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
- if (DbgGV == 0) return 0;
- if (!DbgGV->hasInitializer()) return 0;
-
- Constant *C = DbgGV->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->getNumOperands())
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(DbgNode->getOperand(Elt)))
+ return CI->getZExtValue();
+
return 0;
}
DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
- if (DbgGV == 0) return DIDescriptor();
-
- Constant *C = DbgGV->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->getNumOperands())
+ return
+ DIDescriptor(dyn_cast_or_null<const MDNode>(DbgNode->getOperand(Elt)));
+ return DIDescriptor();
}
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
- if (DbgGV == 0) return 0;
+ if (DbgNode == 0)
+ return 0;
+
+ if (Elt < DbgNode->getNumOperands())
+ return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
+ return 0;
+}
- Constant *C = DbgGV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands())
+Constant *DIDescriptor::getConstantField(unsigned Elt) const {
+ if (DbgNode == 0)
return 0;
- C = C->getOperand(Elt);
- return dyn_cast<GlobalVariable>(C->stripPointerCasts());
+ if (Elt < DbgNode->getNumOperands())
+ return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
+ return 0;
}
+Function *DIDescriptor::getFunctionField(unsigned Elt) const {
+ if (DbgNode == 0)
+ return 0;
+
+ if (Elt < DbgNode->getNumOperands())
+ return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
+ return 0;
+}
+
+unsigned DIVariable::getNumAddrElements() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return DbgNode->getNumOperands()-6;
+ return DbgNode->getNumOperands()-7;
+}
+
+
//===----------------------------------------------------------------------===//
-// Simple Descriptor Constructors and other Methods
+// Predicates
//===----------------------------------------------------------------------===//
-// 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))
- DbgGV = 0;
+/// isBasicType - Return true if the specified tag is legal for
+/// DIBasicType.
+bool DIDescriptor::isBasicType() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_base_type;
}
-/// isDerivedType - Return true if the specified tag is legal for
-/// DIDerivedType.
-bool DIType::isDerivedType(unsigned Tag) {
- switch (Tag) {
+/// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
+bool DIDescriptor::isDerivedType() const {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_typedef:
case dwarf::DW_TAG_pointer_type:
case dwarf::DW_TAG_reference_type:
case dwarf::DW_TAG_restrict_type:
case dwarf::DW_TAG_member:
case dwarf::DW_TAG_inheritance:
+ case dwarf::DW_TAG_friend:
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();
}
}
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
-bool DIType::isCompositeType(unsigned TAG) {
- switch (TAG) {
+bool DIDescriptor::isCompositeType() const {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_array_type:
case dwarf::DW_TAG_structure_type:
case dwarf::DW_TAG_union_type:
}
/// isVariable - Return true if the specified tag is legal for DIVariable.
-bool DIVariable::isVariable(unsigned Tag) {
- switch (Tag) {
+bool DIDescriptor::isVariable() const {
+ if (!DbgNode) return false;
+ switch (getTag()) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
case dwarf::DW_TAG_return_variable:
}
}
+/// isType - Return true if the specified tag is legal for DIType.
+bool DIDescriptor::isType() const {
+ return isBasicType() || isCompositeType() || isDerivedType();
+}
+
+/// isSubprogram - Return true if the specified tag is legal for
+/// DISubprogram.
+bool DIDescriptor::isSubprogram() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_subprogram;
+}
+
+/// isGlobalVariable - Return true if the specified tag is legal for
+/// DIGlobalVariable.
+bool DIDescriptor::isGlobalVariable() const {
+ return DbgNode && (getTag() == dwarf::DW_TAG_variable ||
+ getTag() == dwarf::DW_TAG_constant);
+}
+
+/// isGlobal - Return true if the specified tag is legal for DIGlobal.
+bool DIDescriptor::isGlobal() const {
+ return isGlobalVariable();
+}
+
+/// isUnspecifiedParmeter - Return true if the specified tag is
+/// DW_TAG_unspecified_parameters.
+bool DIDescriptor::isUnspecifiedParameter() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_unspecified_parameters;
+}
+
+/// isScope - Return true if the specified tag is one of the scope
+/// related tag.
+bool DIDescriptor::isScope() const {
+ if (!DbgNode) return false;
+ switch (getTag()) {
+ case dwarf::DW_TAG_compile_unit:
+ case dwarf::DW_TAG_lexical_block:
+ case dwarf::DW_TAG_subprogram:
+ case dwarf::DW_TAG_namespace:
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
+
+/// isTemplateTypeParameter - Return true if the specified tag is
+/// DW_TAG_template_type_parameter.
+bool DIDescriptor::isTemplateTypeParameter() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_template_type_parameter;
+}
+
+/// isTemplateValueParameter - Return true if the specified tag is
+/// DW_TAG_template_value_parameter.
+bool DIDescriptor::isTemplateValueParameter() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_template_value_parameter;
+}
+
+/// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
+bool DIDescriptor::isCompileUnit() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
+}
+
+/// isFile - Return true if the specified tag is DW_TAG_file_type.
+bool DIDescriptor::isFile() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_file_type;
+}
+
+/// isNameSpace - Return true if the specified tag is DW_TAG_namespace.
+bool DIDescriptor::isNameSpace() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_namespace;
+}
+
+/// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
+bool DIDescriptor::isLexicalBlock() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_lexical_block;
+}
+
+/// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
+bool DIDescriptor::isSubrange() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_subrange_type;
+}
+
+/// isEnumerator - Return true if the specified tag is DW_TAG_enumerator.
+bool DIDescriptor::isEnumerator() const {
+ return DbgNode && getTag() == dwarf::DW_TAG_enumerator;
+}
+
+//===----------------------------------------------------------------------===//
+// Simple Descriptor Constructors and other Methods
+//===----------------------------------------------------------------------===//
+
+DIType::DIType(const MDNode *N) : DIScope(N) {
+ if (!N) return;
+ if (!isBasicType() && !isDerivedType() && !isCompositeType()) {
+ DbgNode = 0;
+ }
+}
+
unsigned DIArray::getNumElements() const {
- assert (DbgGV && "Invalid DIArray");
- Constant *C = DbgGV->getInitializer();
- assert (C && "Invalid DIArray initializer");
- return C->getNumOperands();
+ if (!DbgNode)
+ return 0;
+ return DbgNode->getNumOperands();
}
/// 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())
+/// this descriptor.
+void DIType::replaceAllUsesWith(DIDescriptor &D) {
+ if (!DbgNode)
return;
- assert (!D.isNull() && "Can not replace with null");
- getGV()->replaceAllUsesWith(D.getGV());
- getGV()->eraseFromParent();
+ // 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 (DbgNode != D) {
+ MDNode *Node = const_cast<MDNode*>(DbgNode);
+ const MDNode *DN = D;
+ const Value *V = cast_or_null<Value>(DN);
+ Node->replaceAllUsesWith(const_cast<Value*>(V));
+ MDNode::deleteTemporary(Node);
+ }
+}
+
+/// replaceAllUsesWith - Replace all uses of debug info referenced by
+/// this descriptor.
+void DIType::replaceAllUsesWith(MDNode *D) {
+ if (!DbgNode)
+ return;
+
+ // 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 (DbgNode != D) {
+ MDNode *Node = const_cast<MDNode*>(DbgNode);
+ const MDNode *DN = D;
+ const Value *V = cast_or_null<Value>(DN);
+ Node->replaceAllUsesWith(const_cast<Value*>(V));
+ MDNode::deleteTemporary(Node);
+ }
}
/// Verify - Verify that a compile unit is well formed.
bool DICompileUnit::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- std::string Res;
- if (getFilename(Res).empty())
+ StringRef N = getFilename();
+ if (N.empty())
return false;
// It is possible that directory and produce string is empty.
return true;
/// Verify - Verify that a type descriptor is well formed.
bool DIType::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
-
- DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ unsigned Tag = getTag();
+ if (!isBasicType() && Tag != dwarf::DW_TAG_const_type &&
+ Tag != dwarf::DW_TAG_volatile_type && Tag != dwarf::DW_TAG_pointer_type &&
+ Tag != dwarf::DW_TAG_reference_type && Tag != dwarf::DW_TAG_restrict_type
+ && Tag != dwarf::DW_TAG_vector_type && Tag != dwarf::DW_TAG_array_type
+ && Tag != dwarf::DW_TAG_enumeration_type
+ && getFilename().empty())
return false;
return true;
}
+/// Verify - Verify that a basic type descriptor is well formed.
+bool DIBasicType::Verify() const {
+ return isBasicType();
+}
+
+/// Verify - Verify that a derived type descriptor is well formed.
+bool DIDerivedType::Verify() const {
+ return isDerivedType();
+}
+
/// Verify - Verify that a composite type descriptor is well formed.
bool DICompositeType::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
- if (getContext().isNull())
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ if (!CU.Verify())
return false;
return true;
}
/// Verify - Verify that a subprogram descriptor is well formed.
bool DISubprogram::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
-
- if (getContext().isNull())
+
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.Verify())
+ if (!CU.Verify())
return false;
DICompositeType Ty = getType();
- if (!Ty.isNull() && !Ty.Verify())
+ if (!Ty.Verify())
return false;
return true;
}
/// Verify - Verify that a global variable descriptor is well formed.
bool DIGlobalVariable::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
-
- if (getContext().isNull())
+
+ if (getDisplayName().empty())
+ return false;
+
+ if (!getContext().Verify())
return false;
DICompileUnit CU = getCompileUnit();
- if (!CU.isNull() && !CU.Verify())
+ if (!CU.Verify())
return false;
DIType Ty = getType();
if (!Ty.Verify())
return false;
- if (!getGlobal())
+ if (!getGlobal() && !getConstant())
return false;
return true;
/// Verify - Verify that a variable descriptor is well formed.
bool DIVariable::Verify() const {
- if (isNull())
+ if (!DbgNode)
return false;
-
- if (getContext().isNull())
+
+ if (!getContext().Verify())
+ return false;
+
+ if (!getCompileUnit().Verify())
return false;
DIType Ty = getType();
return true;
}
+/// Verify - Verify that a location descriptor is well formed.
+bool DILocation::Verify() const {
+ if (!DbgNode)
+ return false;
+
+ return DbgNode->getNumOperands() == 4;
+}
+
+/// Verify - Verify that a namespace descriptor is well formed.
+bool DINameSpace::Verify() const {
+ if (!DbgNode)
+ return false;
+ if (getName().empty())
+ return false;
+ if (!getCompileUnit().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();
+ unsigned Tag = getTag();
+ if (Tag == dwarf::DW_TAG_member || Tag == dwarf::DW_TAG_typedef ||
+ Tag == dwarf::DW_TAG_const_type || Tag == dwarf::DW_TAG_volatile_type ||
+ Tag == dwarf::DW_TAG_restrict_type) {
+ DIType BaseType = getTypeDerivedFrom();
+ // If this type is not derived from any type then take conservative
+ // approach.
+ if (!BaseType.isValid())
+ return getSizeInBits();
+ if (BaseType.isDerivedType())
+ return DIDerivedType(BaseType).getOriginalTypeSize();
+ else
+ return BaseType.getSizeInBits();
+ }
+
+ return getSizeInBits();
+}
+
+/// isInlinedFnArgument - Return true if this variable provides debugging
+/// information for an inlined function arguments.
+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));
}
/// 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);
+ assert(F && "Invalid function");
+ if (F == getFunction())
+ return true;
+ StringRef Name = getLinkageName();
if (Name.empty())
- getName(Name);
+ Name = getName();
if (F->getName() == Name)
return true;
return false;
}
+unsigned DISubprogram::isOptimized() const {
+ assert (DbgNode && "Invalid subprogram descriptor!");
+ if (DbgNode->getNumOperands() == 16)
+ return getUnsignedField(15);
+ return 0;
+}
+
+StringRef DIScope::getFilename() const {
+ if (!DbgNode)
+ return StringRef();
+ if (isLexicalBlock())
+ return DILexicalBlock(DbgNode).getFilename();
+ if (isSubprogram())
+ return DISubprogram(DbgNode).getFilename();
+ if (isCompileUnit())
+ return DICompileUnit(DbgNode).getFilename();
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getFilename();
+ if (isType())
+ return DIType(DbgNode).getFilename();
+ if (isFile())
+ return DIFile(DbgNode).getFilename();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
+}
+
+StringRef DIScope::getDirectory() const {
+ if (!DbgNode)
+ return StringRef();
+ if (isLexicalBlock())
+ return DILexicalBlock(DbgNode).getDirectory();
+ if (isSubprogram())
+ return DISubprogram(DbgNode).getDirectory();
+ if (isCompileUnit())
+ return DICompileUnit(DbgNode).getDirectory();
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getDirectory();
+ if (isType())
+ return DIType(DbgNode).getDirectory();
+ if (isFile())
+ return DIFile(DbgNode).getDirectory();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
+}
+
//===----------------------------------------------------------------------===//
// DIDescriptor: dump routines for all descriptors.
//===----------------------------------------------------------------------===//
-/// dump - Print descriptor.
-void DIDescriptor::dump() const {
- cerr << "[" << dwarf::TagString(getTag()) << "] ";
- cerr << std::hex << "[GV:" << DbgGV << "]" << std::dec;
+/// print - Print descriptor.
+void DIDescriptor::print(raw_ostream &OS) const {
+ OS << "[" << dwarf::TagString(getTag()) << "] ";
+ OS.write_hex((intptr_t) &*DbgNode) << ']';
}
-/// dump - Print compile unit.
-void DICompileUnit::dump() const {
+/// print - Print compile unit.
+void DICompileUnit::print(raw_ostream &OS) const {
if (getLanguage())
- cerr << " [" << dwarf::LanguageString(getLanguage()) << "] ";
+ OS << " [" << dwarf::LanguageString(getLanguage()) << "] ";
- std::string Res1, Res2;
- cerr << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]";
+ OS << " [" << getDirectory() << "/" << getFilename() << "]";
}
-/// dump - Print type.
-void DIType::dump() const {
- if (isNull()) return;
+/// print - Print type.
+void DIType::print(raw_ostream &OS) const {
+ if (!DbgNode) return;
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
unsigned Tag = getTag();
- cerr << " [" << dwarf::TagString(Tag) << "] ";
+ OS << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
- getCompileUnit().dump();
- cerr << " ["
- << getLineNumber() << ", "
- << getSizeInBits() << ", "
- << getAlignInBits() << ", "
- << getOffsetInBits()
- << "] ";
-
- if (isPrivate())
- cerr << " [private] ";
+ getCompileUnit().print(OS);
+ OS << " ["
+ << "line " << getLineNumber() << ", "
+ << getSizeInBits() << " bits, "
+ << getAlignInBits() << " bit alignment, "
+ << getOffsetInBits() << " bit offset"
+ << "] ";
+
+ if (isPrivate())
+ OS << " [private] ";
else if (isProtected())
- cerr << " [protected] ";
+ OS << " [protected] ";
if (isForwardDecl())
- cerr << " [fwd] ";
-
- if (isBasicType(Tag))
- DIBasicType(DbgGV).dump();
- else if (isDerivedType(Tag))
- DIDerivedType(DbgGV).dump();
- else if (isCompositeType(Tag))
- DICompositeType(DbgGV).dump();
+ OS << " [fwd] ";
+
+ if (isBasicType())
+ DIBasicType(DbgNode).print(OS);
+ else if (isDerivedType())
+ DIDerivedType(DbgNode).print(OS);
+ else if (isCompositeType())
+ DICompositeType(DbgNode).print(OS);
else {
- cerr << "Invalid DIType\n";
+ OS << "Invalid DIType\n";
return;
}
- cerr << "\n";
+ OS << "\n";
}
-/// dump - Print basic type.
-void DIBasicType::dump() const {
- cerr << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
+/// print - Print basic type.
+void DIBasicType::print(raw_ostream &OS) const {
+ OS << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
}
-/// dump - Print derived type.
-void DIDerivedType::dump() const {
- cerr << "\n\t Derived From: "; getTypeDerivedFrom().dump();
+/// print - Print derived type.
+void DIDerivedType::print(raw_ostream &OS) const {
+ OS << "\n\t Derived From: "; getTypeDerivedFrom().print(OS);
}
-/// dump - Print composite type.
-void DICompositeType::dump() const {
+/// print - Print composite type.
+void DICompositeType::print(raw_ostream &OS) const {
DIArray A = getTypeArray();
- if (A.isNull())
- return;
- cerr << " [" << A.getNumElements() << " elements]";
+ OS << " [" << A.getNumElements() << " elements]";
}
-/// dump - Print global.
-void DIGlobal::dump() const {
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+/// print - Print subprogram.
+void DISubprogram::print(raw_ostream &OS) const {
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
unsigned Tag = getTag();
- cerr << " [" << dwarf::TagString(Tag) << "] ";
+ OS << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
- getCompileUnit().dump();
- cerr << " [" << getLineNumber() << "] ";
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
if (isLocalToUnit())
- cerr << " [local] ";
+ OS << " [local] ";
if (isDefinition())
- cerr << " [def] ";
+ OS << " [def] ";
- if (isGlobalVariable(Tag))
- DIGlobalVariable(DbgGV).dump();
-
- cerr << "\n";
+ OS << "\n";
}
-/// dump - Print subprogram.
-void DISubprogram::dump() const {
- DIGlobal::dump();
-}
+/// print - Print global variable.
+void DIGlobalVariable::print(raw_ostream &OS) const {
+ OS << " [";
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
-/// dump - Print global variable.
-void DIGlobalVariable::dump() const {
- cerr << " ["; getGlobal()->dump(); cerr << "] ";
-}
+ unsigned Tag = getTag();
+ OS << " [" << dwarf::TagString(Tag) << "] ";
-/// dump - Print variable.
-void DIVariable::dump() const {
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+ // TODO : Print context
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
- getCompileUnit().dump();
- cerr << " [" << getLineNumber() << "] ";
- getType().dump();
- cerr << "\n";
-}
+ if (isLocalToUnit())
+ OS << " [local] ";
-//===----------------------------------------------------------------------===//
-// DIFactory: Basic Helpers
-//===----------------------------------------------------------------------===//
+ if (isDefinition())
+ OS << " [def] ";
-DIFactory::DIFactory(Module &m)
- : M(m), VMContext(M.getContext()), StopPointFn(0), FuncStartFn(0),
- RegionStartFn(0), RegionEndFn(0),
- DeclareFn(0) {
- EmptyStructPtr = PointerType::getUnqual(StructType::get());
+ if (isGlobalVariable())
+ DIGlobalVariable(DbgNode).print(OS);
+ OS << "]\n";
}
-/// 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 VMContext.getNullValue(EmptyStructPtr);
- return ConstantExpr::getBitCast(D.getGV(), EmptyStructPtr);
-}
+/// print - Print variable.
+void DIVariable::print(raw_ostream &OS) const {
+ StringRef Res = getName();
+ if (!Res.empty())
+ OS << " [" << Res << "] ";
-Constant *DIFactory::GetTagConstant(unsigned TAG) {
- assert((TAG & LLVMDebugVersionMask) == 0 &&
- "Tag too large for debug encoding!");
- return ConstantInt::get(Type::Int32Ty, TAG | LLVMDebugVersion);
-}
+ getCompileUnit().print(OS);
+ OS << " [" << getLineNumber() << "] ";
+ getType().print(OS);
+ OS << "\n";
-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 i8* null instead.
- if (String.empty())
- return Slot = VMContext.getConstantPointerNull(DestTy);
+ // FIXME: Dump complex addresses
+}
- // Construct string as an llvm constant.
- Constant *ConstStr = ConstantArray::get(String);
-
- // Otherwise create and return a new string global.
- GlobalVariable *StrGV = new GlobalVariable(M, ConstStr->getType(), true,
- GlobalVariable::InternalLinkage,
- ConstStr, ".str");
- StrGV->setSection("llvm.metadata");
- return Slot = ConstantExpr::getBitCast(StrGV, DestTy);
+/// dump - Print descriptor to dbgs() with a newline.
+void DIDescriptor::dump() const {
+ print(dbgs()); dbgs() << '\n';
}
-//===----------------------------------------------------------------------===//
-// DIFactory: Primary Constructors
-//===----------------------------------------------------------------------===//
+/// dump - Print compile unit to dbgs() with a newline.
+void DICompileUnit::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
-/// 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;
-
- for (unsigned i = 0; i != NumTys; ++i)
- Elts.push_back(getCastToEmpty(Tys[i]));
-
- Constant *Init = ConstantArray::get(ArrayType::get(EmptyStructPtr,
- Elts.size()),
- Elts.data(), 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(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.array");
- GV->setSection("llvm.metadata");
- Entry = DIDescriptor(GV);
- return DIArray(GV);
-}
-
-/// 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[] = {
- GetTagConstant(dwarf::DW_TAG_subrange_type),
- ConstantInt::get(Type::Int64Ty, Lo),
- ConstantInt::get(Type::Int64Ty, Hi)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
+/// dump - Print type to dbgs() with a newline.
+void DIType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
- // 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(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.subrange");
- GV->setSection("llvm.metadata");
- Entry = DIDescriptor(GV);
- return DISubrange(GV);
-}
-
-
-
-/// CreateCompileUnit - Create a new descriptor for the specified compile
-/// unit. Note that this does not unique compile units within the module.
-DICompileUnit DIFactory::CreateCompileUnit(unsigned LangID,
- const std::string &Filename,
- const std::string &Directory,
- const std::string &Producer,
- bool isMain,
- bool isOptimized,
- const char *Flags,
- unsigned RunTimeVer) {
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_compile_unit),
- VMContext.getNullValue(EmptyStructPtr),
- ConstantInt::get(Type::Int32Ty, LangID),
- GetStringConstant(Filename),
- GetStringConstant(Directory),
- GetStringConstant(Producer),
- ConstantInt::get(Type::Int1Ty, isMain),
- ConstantInt::get(Type::Int1Ty, isOptimized),
- GetStringConstant(Flags),
- ConstantInt::get(Type::Int32Ty, RunTimeVer)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.compile_unit.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::LinkOnceAnyLinkage,
- Init, "llvm.dbg.compile_unit");
- GV->setSection("llvm.metadata");
- return DICompileUnit(GV);
-}
-
-/// CreateEnumerator - Create a single enumerator value.
-DIEnumerator DIFactory::CreateEnumerator(const std::string &Name, uint64_t Val){
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_enumerator),
- GetStringConstant(Name),
- ConstantInt::get(Type::Int64Ty, Val)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.enumerator.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.enumerator");
- GV->setSection("llvm.metadata");
- return DIEnumerator(GV);
-}
-
-
-/// CreateBasicType - Create a basic type like int, float, etc.
-DIBasicType DIFactory::CreateBasicType(DIDescriptor Context,
- const std::string &Name,
- DICompileUnit CompileUnit,
- unsigned LineNumber,
- uint64_t SizeInBits,
- uint64_t AlignInBits,
- uint64_t OffsetInBits, unsigned Flags,
- unsigned Encoding) {
- Constant *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)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.basictype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.basictype");
- GV->setSection("llvm.metadata");
- return DIBasicType(GV);
-}
-
-/// CreateDerivedType - Create a derived type like const qualified type,
-/// pointer, typedef, etc.
-DIDerivedType DIFactory::CreateDerivedType(unsigned Tag,
- DIDescriptor Context,
- const std::string &Name,
- DICompileUnit CompileUnit,
- unsigned LineNumber,
- uint64_t SizeInBits,
- uint64_t AlignInBits,
- uint64_t OffsetInBits,
- unsigned Flags,
- DIType DerivedFrom) {
- Constant *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)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.derivedtype.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.derivedtype");
- GV->setSection("llvm.metadata");
- return DIDerivedType(GV);
-}
-
-/// CreateCompositeType - Create a composite type like array, struct, etc.
-DICompositeType DIFactory::CreateCompositeType(unsigned Tag,
- DIDescriptor Context,
- const std::string &Name,
- DICompileUnit CompileUnit,
- unsigned LineNumber,
- uint64_t SizeInBits,
- uint64_t AlignInBits,
- uint64_t OffsetInBits,
- unsigned Flags,
- DIType DerivedFrom,
- DIArray Elements,
- unsigned RuntimeLang) {
-
- Constant *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),
- ConstantInt::get(Type::Int32Ty, RuntimeLang)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.composite.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.composite");
- GV->setSection("llvm.metadata");
- return DICompositeType(GV);
-}
-
-
-/// CreateSubprogram - Create a new descriptor for the specified subprogram.
-/// See comments in DISubprogram for descriptions of these fields. This
-/// method does not unique the generated descriptors.
-DISubprogram DIFactory::CreateSubprogram(DIDescriptor Context,
- const std::string &Name,
- const std::string &DisplayName,
- const std::string &LinkageName,
- DICompileUnit CompileUnit,
- unsigned LineNo, DIType Type,
- bool isLocalToUnit,
- bool isDefinition) {
-
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_subprogram),
- VMContext.getNullValue(EmptyStructPtr),
- 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)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.subprogram.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::LinkOnceAnyLinkage,
- Init, "llvm.dbg.subprogram");
- GV->setSection("llvm.metadata");
- return DISubprogram(GV);
-}
-
-/// CreateGlobalVariable - Create a new descriptor for the specified global.
-DIGlobalVariable
-DIFactory::CreateGlobalVariable(DIDescriptor Context, const std::string &Name,
- const std::string &DisplayName,
- const std::string &LinkageName,
- DICompileUnit CompileUnit,
- unsigned LineNo, DIType Type,bool isLocalToUnit,
- bool isDefinition, llvm::GlobalVariable *Val) {
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_variable),
- VMContext.getNullValue(EmptyStructPtr),
- 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)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.global_variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::LinkOnceAnyLinkage,
- Init, "llvm.dbg.global_variable");
- GV->setSection("llvm.metadata");
- return DIGlobalVariable(GV);
-}
-
-
-/// CreateVariable - Create a new descriptor for the specified variable.
-DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context,
- const std::string &Name,
- DICompileUnit CompileUnit, unsigned LineNo,
- DIType Type) {
- Constant *Elts[] = {
- GetTagConstant(Tag),
- getCastToEmpty(Context),
- GetStringConstant(Name),
- getCastToEmpty(CompileUnit),
- ConstantInt::get(Type::Int32Ty, LineNo),
- getCastToEmpty(Type)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.variable.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.variable");
- GV->setSection("llvm.metadata");
- return DIVariable(GV);
-}
-
-
-/// CreateBlock - This creates a descriptor for a lexical block with the
-/// specified parent VMContext.
-DIBlock DIFactory::CreateBlock(DIDescriptor Context) {
- Constant *Elts[] = {
- GetTagConstant(dwarf::DW_TAG_lexical_block),
- getCastToEmpty(Context)
- };
-
- Constant *Init = ConstantStruct::get(Elts, sizeof(Elts)/sizeof(Elts[0]));
-
- M.addTypeName("llvm.dbg.block.type", Init->getType());
- GlobalVariable *GV = new GlobalVariable(M, Init->getType(), true,
- GlobalValue::InternalLinkage,
- Init, "llvm.dbg.block");
- GV->setSection("llvm.metadata");
- return DIBlock(GV);
+/// dump - Print basic type to dbgs() with a newline.
+void DIBasicType::dump() const {
+ print(dbgs()); dbgs() << '\n';
}
+/// dump - Print derived type to dbgs() with a newline.
+void DIDerivedType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
-//===----------------------------------------------------------------------===//
-// DIFactory: Routines for inserting code into a function
-//===----------------------------------------------------------------------===//
+/// dump - Print composite type to dbgs() with a newline.
+void DICompositeType::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
-/// InsertStopPoint - Create a new llvm.dbg.stoppoint intrinsic invocation,
-/// inserting it at the end of the specified basic block.
-void DIFactory::InsertStopPoint(DICompileUnit CU, unsigned LineNo,
- unsigned ColNo, BasicBlock *BB) {
-
- // Lazily construct llvm.dbg.stoppoint function.
- if (!StopPointFn)
- StopPointFn = llvm::Intrinsic::getDeclaration(&M,
- llvm::Intrinsic::dbg_stoppoint);
-
- // Invoke llvm.dbg.stoppoint
- Value *Args[] = {
- ConstantInt::get(llvm::Type::Int32Ty, LineNo),
- ConstantInt::get(llvm::Type::Int32Ty, ColNo),
- getCastToEmpty(CU)
- };
- CallInst::Create(StopPointFn, Args, Args+3, "", BB);
-}
-
-/// InsertSubprogramStart - Create a new llvm.dbg.func.start intrinsic to
-/// mark the start of the specified subprogram.
-void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) {
- // Lazily construct llvm.dbg.func.start.
- if (!FuncStartFn)
- 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);
+/// dump - Print subprogram to dbgs() with a newline.
+void DISubprogram::dump() const {
+ print(dbgs()); dbgs() << '\n';
}
-/// InsertRegionStart - Insert a new llvm.dbg.region.start intrinsic call to
-/// mark the start of a region for the specified scoping descriptor.
-void DIFactory::InsertRegionStart(DIDescriptor D, BasicBlock *BB) {
- // Lazily construct llvm.dbg.region.start function.
- if (!RegionStartFn)
- RegionStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_start);
+/// dump - Print global variable.
+void DIGlobalVariable::dump() const {
+ print(dbgs()); dbgs() << '\n';
+}
- // Call llvm.dbg.func.start.
- CallInst::Create(RegionStartFn, getCastToEmpty(D), "", BB);
+/// dump - Print variable.
+void DIVariable::dump() const {
+ print(dbgs()); dbgs() << '\n';
}
-/// 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 = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_end);
+/// fixupObjcLikeName - Replace contains special characters used
+/// in a typical Objective-C names with '.' in a given string.
+static void fixupObjcLikeName(std::string &Str) {
+ for (size_t i = 0, e = Str.size(); i < e; ++i) {
+ char C = Str[i];
+ if (C == '[' || C == ']' || C == ' ' || C == ':' || C == '+' ||
+ C == '(' || C == ')')
+ Str[i] = '.';
+ }
+}
- // Call llvm.dbg.region.end.
- CallInst::Create(RegionEndFn, getCastToEmpty(D), "", BB);
+/// getFnSpecificMDNode - Return a NameMDNode, if available, that is
+/// suitable to hold function specific information.
+NamedMDNode *llvm::getFnSpecificMDNode(const Module &M, StringRef FuncName) {
+ if (FuncName.find('[') == StringRef::npos)
+ return M.getNamedMetadata(Twine("llvm.dbg.lv.", FuncName));
+ std::string Name = FuncName;
+ fixupObjcLikeName(Name);
+ return M.getNamedMetadata(Twine("llvm.dbg.lv.", Name));
}
-/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
-void DIFactory::InsertDeclare(Value *Storage, DIVariable D, BasicBlock *BB) {
- // Cast the storage to a {}* for the call to llvm.dbg.declare.
- Storage = new BitCastInst(Storage, EmptyStructPtr, "", BB);
+/// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
+/// to hold function specific information.
+NamedMDNode *llvm::getOrInsertFnSpecificMDNode(Module &M, StringRef FuncName) {
+ SmallString<32> Out;
+ if (FuncName.find('[') == StringRef::npos)
+ return M.getOrInsertNamedMetadata(Twine("llvm.dbg.lv.", FuncName)
+ .toStringRef(Out));
- if (!DeclareFn)
- DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
-
- Value *Args[] = { Storage, getCastToEmpty(D) };
- CallInst::Create(DeclareFn, Args, Args+2, "", BB);
+ std::string Name = FuncName;
+ fixupObjcLikeName(Name);
+ return M.getOrInsertNamedMetadata(Twine("llvm.dbg.lv.", Name)
+ .toStringRef(Out));
}
+
//===----------------------------------------------------------------------===//
-// DebugInfoEnumerator implementations.
+// DebugInfoFinder implementations.
//===----------------------------------------------------------------------===//
-/// enumerateModule - Enumerate entire module and collect debug info.
-void DebugInfoEnumerator::enumerateModule(Module &M) {
-
+/// 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))
- enumerateStopPoint(SPI);
- else if (DbgFuncStartInst *FSI = dyn_cast<DbgFuncStartInst>(BI))
- enumerateFuncStart(FSI);
+ if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
+ processDeclare(DDI);
+
+ DebugLoc Loc = BI->getDebugLoc();
+ if (Loc.isUnknown())
+ continue;
+
+ LLVMContext &Ctx = BI->getContext();
+ DIDescriptor Scope(Loc.getScope(Ctx));
+
+ if (Scope.isCompileUnit())
+ addCompileUnit(DICompileUnit(Scope));
+ else if (Scope.isSubprogram())
+ processSubprogram(DISubprogram(Scope));
+ else if (Scope.isLexicalBlock())
+ processLexicalBlock(DILexicalBlock(Scope));
+
+ if (MDNode *IA = Loc.getInlinedAt(Ctx))
+ processLocation(DILocation(IA));
+ }
+
+ if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv")) {
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+ DIGlobalVariable DIG(cast<MDNode>(NMD->getOperand(i)));
+ if (addGlobalVariable(DIG)) {
+ addCompileUnit(DIG.getCompileUnit());
+ processType(DIG.getType());
}
-
- for (Module::global_iterator GVI = M.global_begin(), GVE = M.global_end();
- GVI != GVE; ++GVI) {
- GlobalVariable *GV = GVI;
- if (!GV->hasName() || !GV->isConstant()
- || strcmp(GV->getName().data(), "llvm.dbg.global_variable")
- || !GV->hasInitializer())
- continue;
- DIGlobalVariable DIG(GV);
- if (addGlobalVariable(DIG)) {
- addCompileUnit(DIG.getCompileUnit());
- enumerateType(DIG.getType());
}
}
+
+ if (NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.sp"))
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
+ processSubprogram(DISubprogram(NMD->getOperand(i)));
}
-
-/// enumerateType - Enumerate DIType.
-void DebugInfoEnumerator::enumerateType(DIType DT) {
- if (DT.isNull())
- return;
- if (!NodesSeen.insert(DT.getGV()))
+
+/// processLocation - Process DILocation.
+void DebugInfoFinder::processLocation(DILocation Loc) {
+ if (!Loc.Verify()) return;
+ DIDescriptor S(Loc.getScope());
+ if (S.isCompileUnit())
+ addCompileUnit(DICompileUnit(S));
+ else if (S.isSubprogram())
+ processSubprogram(DISubprogram(S));
+ else if (S.isLexicalBlock())
+ processLexicalBlock(DILexicalBlock(S));
+ processLocation(Loc.getOrigLocation());
+}
+
+/// processType - Process DIType.
+void DebugInfoFinder::processType(DIType DT) {
+ if (!addType(DT))
return;
addCompileUnit(DT.getCompileUnit());
- if (DT.isCompositeType(DT.getTag())) {
- DICompositeType DCT(DT.getGV());
- enumerateType(DCT.getTypeDerivedFrom());
+ if (DT.isCompositeType()) {
+ DICompositeType DCT(DT);
+ 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.getGV());
- if (!TypeE.isNull())
- enumerateType(TypeE);
- else
- enumerateSubprogram(DISubprogram(D.getGV()));
- }
- } else if (DT.isDerivedType(DT.getTag())) {
- DIDerivedType DDT(DT.getGV());
- if (!DDT.isNull())
- enumerateType(DDT.getTypeDerivedFrom());
+ 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));
+ }
+ } else if (DT.isDerivedType()) {
+ DIDerivedType DDT(DT);
+ processType(DDT.getTypeDerivedFrom());
}
}
-/// enumerateSubprogram - Enumberate DISubprogram.
-void DebugInfoEnumerator::enumerateSubprogram(DISubprogram SP) {
+/// processLexicalBlock
+void DebugInfoFinder::processLexicalBlock(DILexicalBlock LB) {
+ DIScope Context = LB.getContext();
+ if (Context.isLexicalBlock())
+ return processLexicalBlock(DILexicalBlock(Context));
+ else
+ return processSubprogram(DISubprogram(Context));
+}
+
+/// processSubprogram - Process DISubprogram.
+void DebugInfoFinder::processSubprogram(DISubprogram SP) {
if (!addSubprogram(SP))
return;
addCompileUnit(SP.getCompileUnit());
- enumerateType(SP.getType());
+ processType(SP.getType());
}
-/// enumerateStopPoint - Enumerate DbgStopPointInst.
-void DebugInfoEnumerator::enumerateStopPoint(DbgStopPointInst *SPI) {
- GlobalVariable *Context = dyn_cast<GlobalVariable>(SPI->getContext());
- addCompileUnit(DICompileUnit(Context));
+/// processDeclare - Process DbgDeclareInst.
+void DebugInfoFinder::processDeclare(DbgDeclareInst *DDI) {
+ MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
+ if (!N) return;
+
+ DIDescriptor DV(N);
+ if (!DV.isVariable())
+ return;
+
+ if (!NodesSeen.insert(DV))
+ return;
+
+ addCompileUnit(DIVariable(N).getCompileUnit());
+ processType(DIVariable(N).getType());
}
-/// enumerateFuncStart - Enumberate DbgFuncStartInst.
-void DebugInfoEnumerator::enumerateFuncStart(DbgFuncStartInst *FSI) {
- GlobalVariable *SP = dyn_cast<GlobalVariable>(FSI->getSubprogram());
- enumerateSubprogram(DISubprogram(SP));
+/// addType - Add type into Tys.
+bool DebugInfoFinder::addType(DIType DT) {
+ if (!DT.isValid())
+ return false;
+
+ if (!NodesSeen.insert(DT))
+ return false;
+
+ TYs.push_back(DT);
+ return true;
}
/// addCompileUnit - Add compile unit into CUs.
-bool DebugInfoEnumerator::addCompileUnit(DICompileUnit CU) {
- if (CU.isNull())
+bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
+ if (!CU.Verify())
return false;
- if (!NodesSeen.insert(CU.getGV()))
+ if (!NodesSeen.insert(CU))
return false;
- CUs.push_back(CU.getGV());
+ CUs.push_back(CU);
return true;
}
-
+
/// addGlobalVariable - Add global variable into GVs.
-bool DebugInfoEnumerator::addGlobalVariable(DIGlobalVariable DIG) {
- if (DIG.isNull())
+bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
+ if (!DIDescriptor(DIG).isGlobalVariable())
return false;
- if (!NodesSeen.insert(DIG.getGV()))
+ if (!NodesSeen.insert(DIG))
return false;
- GVs.push_back(DIG.getGV());
+ GVs.push_back(DIG);
return true;
}
// addSubprogram - Add subprgoram into SPs.
-bool DebugInfoEnumerator::addSubprogram(DISubprogram SP) {
- if (SP.isNull())
+bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
+ if (!DIDescriptor(SP).isSubprogram())
return false;
-
- if (!NodesSeen.insert(SP.getGV()))
+
+ if (!NodesSeen.insert(SP))
return false;
- SPs.push_back(SP.getGV());
+ SPs.push_back(SP);
return true;
}
-namespace llvm {
- /// 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;
- while (BB) {
- B = BB->begin();
-
- // A BB consisting only of a terminator can't have a stoppoint.
- 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.
- BB = I->getParent()->getUniquePredecessor();
- if (BB)
- I = BB->getTerminator();
- }
-
- return 0;
- }
-
- /// 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.
- BB = BB->getUniquePredecessor();
- if (BB)
- return findStopPoint(BB->getTerminator());
-
- return 0;
- }
-
- Value *findDbgGlobalDeclare(GlobalVariable *V) {
- const Module *M = V->getParent();
- LLVMContext& Context = M->getContext();
-
- const Type *Ty = M->getTypeByName("llvm.dbg.global_variable.type");
- if (!Ty) return 0;
-
- Ty = PointerType::get(Ty, 0);
-
- Value *Val = V->stripPointerCasts();
- for (Value::use_iterator I = Val->use_begin(), E = Val->use_end();
- I != E; ++I) {
- if (ConstantExpr *CE = dyn_cast<ConstantExpr>(I)) {
- if (CE->getOpcode() == Instruction::BitCast) {
- Value *VV = CE;
-
- while (VV->hasOneUse())
- VV = *VV->use_begin();
+/// getDISubprogram - Find subprogram that is enclosing this scope.
+DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
+ DIDescriptor D(Scope);
+ if (D.isSubprogram())
+ return DISubprogram(Scope);
- if (VV->getType() == Ty)
- return VV;
- }
- }
- }
-
- if (Val->getType() == Ty)
- return Val;
-
- 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) {
- 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)
- if (isa<BitCastInst>(I))
- return findDbgDeclare(*I, false);
-
- return 0;
- }
+ if (D.isLexicalBlock())
+ return getDISubprogram(DILexicalBlock(Scope).getContext());
- // 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)
- 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<GlobalVariable>(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<GlobalVariable>(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;
- }
-
- /// CollectDebugInfoAnchors - Collect debugging information anchors.
- void CollectDebugInfoAnchors(Module &M,
- SmallVector<GlobalVariable *, 2> &CUs,
- SmallVector<GlobalVariable *, 4> &GVs,
- SmallVector<GlobalVariable *, 4> &SPs) {
-
- for (Module::global_iterator GVI = M.global_begin(), E = M.global_end();
- GVI != E; GVI++) {
- GlobalVariable *GV = GVI;
- if (GV->hasName() && GV->getName().startswith("llvm.dbg")
- && GV->isConstant() && GV->hasInitializer()) {
- DICompileUnit C(GV);
- if (C.isNull() == false) {
- CUs.push_back(GV);
- continue;
- }
- DIGlobalVariable G(GV);
- if (G.isNull() == false) {
- GVs.push_back(GV);
- continue;
- }
- DISubprogram S(GV);
- if (S.isNull() == false) {
- SPs.push_back(GV);
- continue;
- }
- }
- }
- }
-
- /// 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<GlobalVariable>(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<GlobalVariable>(SP));
- unsigned Line = Subprogram.getLineNumber();
- DICompileUnit CU(Subprogram.getCompileUnit());
-
- // If this location is already tracked then use it.
- DebugLocTuple Tuple(CU.getGV(), 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<GlobalVariable>(FSI.getSubprogram()));
- if (Subprogram.describes(CurrentFn))
- return false;
-
- return true;
- }
+ return DISubprogram();
+}
- /// isInlinedFnEnd - Return true if REI is ending an inlined function.
- bool isInlinedFnEnd(DbgRegionEndInst &REI, const Function *CurrentFn) {
- DISubprogram Subprogram(cast<GlobalVariable>(REI.getContext()));
- if (Subprogram.isNull() || Subprogram.describes(CurrentFn))
- return false;
+/// getDICompositeType - Find underlying composite type.
+DICompositeType llvm::getDICompositeType(DIType T) {
+ if (T.isCompositeType())
+ return DICompositeType(T);
- return true;
- }
+ if (T.isDerivedType())
+ return getDICompositeType(DIDerivedType(T).getTypeDerivedFrom());
+ return DICompositeType();
}
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