//===----------------------------------------------------------------------===//
#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Target/TargetMachine.h" // FIXME: LAYERING VIOLATION!
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#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/Debug.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/DebugLoc.h"
#include "llvm/Support/raw_ostream.h"
/// ValidDebugInfo - Return true if V represents valid debug info value.
/// FIXME : Add DIDescriptor.isValid()
-bool DIDescriptor::ValidDebugInfo(MDNode *N, CodeGenOpt::Level OptLevel) {
+bool DIDescriptor::ValidDebugInfo(MDNode *N, unsigned OptLevel) {
if (!N)
return false;
if (Version != LLVMDebugVersion && Version != LLVMDebugVersion6)
return false;
- unsigned Tag = DI.getTag();
- switch (Tag) {
+ switch (DI.getTag()) {
case DW_TAG_variable:
assert(DIVariable(N).Verify() && "Invalid DebugInfo value");
break;
}
}
-const char *
+StringRef
DIDescriptor::getStringField(unsigned Elt) const {
if (DbgNode == 0)
- return NULL;
+ return StringRef();
if (Elt < DbgNode->getNumElements())
if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getElement(Elt)))
- return MDS->getString().data();
+ return MDS->getString();
- return NULL;
+ return StringRef();
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
/// 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;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == 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) {
+ assert(!isNull() && "Invalid descriptor!");
+ switch (getTag()) {
case dwarf::DW_TAG_typedef:
case dwarf::DW_TAG_pointer_type:
case dwarf::DW_TAG_reference_type:
/// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType.
bool DIDescriptor::isCompositeType() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
+ assert(!isNull() && "Invalid descriptor!");
+ 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 DIDescriptor::isVariable() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- switch (Tag) {
+ assert(!isNull() && "Invalid descriptor!");
+ switch (getTag()) {
case dwarf::DW_TAG_auto_variable:
case dwarf::DW_TAG_arg_variable:
case dwarf::DW_TAG_return_variable:
/// 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;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_subprogram;
}
/// 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;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_variable;
}
/// isGlobal - Return true if the specified tag is legal for DIGlobal.
/// 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;
+ assert(!isNull() && "Invalid descriptor!");
+ 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;
}
/// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
bool DIDescriptor::isCompileUnit() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_compile_unit;
+}
- return Tag == dwarf::DW_TAG_compile_unit;
+/// isNameSpace - Return true if the specified tag is DW_TAG_namespace.
+bool DIDescriptor::isNameSpace() const {
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_namespace;
}
/// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
bool DIDescriptor::isLexicalBlock() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_lexical_block;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_lexical_block;
}
/// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
bool DIDescriptor::isSubrange() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_subrange_type;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_subrange_type;
}
/// isEnumerator - Return true if the specified tag is DW_TAG_enumerator.
bool DIDescriptor::isEnumerator() const {
- assert (!isNull() && "Invalid descriptor!");
- unsigned Tag = getTag();
-
- return Tag == dwarf::DW_TAG_enumerator;
+ assert(!isNull() && "Invalid descriptor!");
+ return getTag() == dwarf::DW_TAG_enumerator;
}
//===----------------------------------------------------------------------===//
}
unsigned DIArray::getNumElements() const {
- assert (DbgNode && "Invalid DIArray");
+ assert(DbgNode && "Invalid DIArray");
return DbgNode->getNumElements();
}
if (isNull())
return;
- assert (!D.isNull() && "Can not replace with null");
+ assert(!D.isNull() && "Can not replace with null");
// Since we use a TrackingVH for the node, its easy for clients to manufacture
// legitimate situations where they want to replaceAllUsesWith() on something
bool DICompileUnit::Verify() const {
if (isNull())
return false;
- const char *N = getFilename();
- if (!N)
+ StringRef N = getFilename();
+ if (N.empty())
return false;
// It is possible that directory and produce string is empty.
return true;
if (isNull())
return false;
+ if (getDisplayName().empty())
+ return false;
+
if (getContext().isNull())
return false;
/// getOriginalTypeSize - If this type is derived from a base type then
/// return base type size.
uint64_t DIDerivedType::getOriginalTypeSize() const {
- DIType BT = getTypeDerivedFrom();
- if (!BT.isNull() && BT.isDerivedType())
- return DIDerivedType(BT.getNode()).getOriginalTypeSize();
- if (BT.isNull())
- 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.isNull())
+ return getSizeInBits();
+ if (BaseType.isDerivedType())
+ return DIDerivedType(BaseType.getNode()).getOriginalTypeSize();
+ else
+ return BaseType.getSizeInBits();
+ }
+
+ return getSizeInBits();
}
/// describes - Return true if this subprogram provides debugging
/// information for the function F.
bool DISubprogram::describes(const Function *F) {
- assert (F && "Invalid function");
- const char *Name = getLinkageName();
- if (!Name)
+ assert(F && "Invalid function");
+ StringRef Name = getLinkageName();
+ if (Name.empty())
Name = getName();
- if (strcmp(F->getName().data(), Name) == 0)
+ if (F->getName() == Name)
return true;
return false;
}
-const char *DIScope::getFilename() const {
+StringRef DIScope::getFilename() const {
if (isLexicalBlock())
return DILexicalBlock(DbgNode).getFilename();
- else if (isSubprogram())
+ if (isSubprogram())
return DISubprogram(DbgNode).getFilename();
- else if (isCompileUnit())
+ if (isCompileUnit())
return DICompileUnit(DbgNode).getFilename();
- else
- assert (0 && "Invalid DIScope!");
- return NULL;
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getFilename();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
}
-const char *DIScope::getDirectory() const {
+StringRef DIScope::getDirectory() const {
if (isLexicalBlock())
return DILexicalBlock(DbgNode).getDirectory();
- else if (isSubprogram())
+ if (isSubprogram())
return DISubprogram(DbgNode).getDirectory();
- else if (isCompileUnit())
+ if (isCompileUnit())
return DICompileUnit(DbgNode).getDirectory();
- else
- assert (0 && "Invalid DIScope!");
- return NULL;
+ if (isNameSpace())
+ return DINameSpace(DbgNode).getDirectory();
+ assert(0 && "Invalid DIScope!");
+ return StringRef();
}
//===----------------------------------------------------------------------===//
/// dump - Print descriptor.
void DIDescriptor::dump() const {
- errs() << "[" << dwarf::TagString(getTag()) << "] ";
- errs().write_hex((intptr_t) &*DbgNode) << ']';
+ dbgs() << "[" << dwarf::TagString(getTag()) << "] ";
+ dbgs().write_hex((intptr_t) &*DbgNode) << ']';
}
/// dump - Print compile unit.
void DICompileUnit::dump() const {
if (getLanguage())
- errs() << " [" << dwarf::LanguageString(getLanguage()) << "] ";
+ dbgs() << " [" << dwarf::LanguageString(getLanguage()) << "] ";
- errs() << " [" << getDirectory() << "/" << getFilename() << " ]";
+ dbgs() << " [" << getDirectory() << "/" << getFilename() << " ]";
}
/// dump - Print type.
void DIType::dump() const {
if (isNull()) return;
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ dbgs() << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ dbgs() << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
getCompileUnit().dump();
- errs() << " ["
+ dbgs() << " ["
<< getLineNumber() << ", "
<< getSizeInBits() << ", "
<< getAlignInBits() << ", "
<< "] ";
if (isPrivate())
- errs() << " [private] ";
+ dbgs() << " [private] ";
else if (isProtected())
- errs() << " [protected] ";
+ dbgs() << " [protected] ";
if (isForwardDecl())
- errs() << " [fwd] ";
+ dbgs() << " [fwd] ";
if (isBasicType())
DIBasicType(DbgNode).dump();
else if (isCompositeType())
DICompositeType(DbgNode).dump();
else {
- errs() << "Invalid DIType\n";
+ dbgs() << "Invalid DIType\n";
return;
}
- errs() << "\n";
+ dbgs() << "\n";
}
/// dump - Print basic type.
void DIBasicType::dump() const {
- errs() << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
+ dbgs() << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
}
/// dump - Print derived type.
void DIDerivedType::dump() const {
- errs() << "\n\t Derived From: "; getTypeDerivedFrom().dump();
+ dbgs() << "\n\t Derived From: "; getTypeDerivedFrom().dump();
}
/// dump - Print composite type.
DIArray A = getTypeArray();
if (A.isNull())
return;
- errs() << " [" << A.getNumElements() << " elements]";
+ dbgs() << " [" << A.getNumElements() << " elements]";
}
/// dump - Print global.
void DIGlobal::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ dbgs() << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ dbgs() << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
+ dbgs() << " [" << getLineNumber() << "] ";
if (isLocalToUnit())
- errs() << " [local] ";
+ dbgs() << " [local] ";
if (isDefinition())
- errs() << " [def] ";
+ dbgs() << " [def] ";
if (isGlobalVariable())
DIGlobalVariable(DbgNode).dump();
- errs() << "\n";
+ dbgs() << "\n";
}
/// dump - Print subprogram.
void DISubprogram::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ dbgs() << " [" << Res << "] ";
unsigned Tag = getTag();
- errs() << " [" << dwarf::TagString(Tag) << "] ";
+ dbgs() << " [" << dwarf::TagString(Tag) << "] ";
// TODO : Print context
getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
+ dbgs() << " [" << getLineNumber() << "] ";
if (isLocalToUnit())
- errs() << " [local] ";
+ dbgs() << " [local] ";
if (isDefinition())
- errs() << " [def] ";
+ dbgs() << " [def] ";
- errs() << "\n";
+ dbgs() << "\n";
}
/// dump - Print global variable.
void DIGlobalVariable::dump() const {
- errs() << " [";
+ dbgs() << " [";
getGlobal()->dump();
- errs() << "] ";
+ dbgs() << "] ";
}
/// dump - Print variable.
void DIVariable::dump() const {
- if (const char *Res = getName())
- errs() << " [" << Res << "] ";
+ StringRef Res = getName();
+ if (!Res.empty())
+ dbgs() << " [" << Res << "] ";
getCompileUnit().dump();
- errs() << " [" << getLineNumber() << "] ";
+ dbgs() << " [" << getLineNumber() << "] ";
getType().dump();
- errs() << "\n";
+ dbgs() << "\n";
// FIXME: Dump complex addresses
}
//===----------------------------------------------------------------------===//
DIFactory::DIFactory(Module &m)
- : M(m), VMContext(M.getContext()), StopPointFn(0), FuncStartFn(0),
- RegionStartFn(0), RegionEndFn(0),
- DeclareFn(0) {
+ : M(m), VMContext(M.getContext()), DeclareFn(0) {
EmptyStructPtr = PointerType::getUnqual(StructType::get(VMContext));
}
StringRef Producer,
bool isMain,
bool isOptimized,
- const char *Flags,
+ StringRef Flags,
unsigned RunTimeVer) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_compile_unit),
DICompileUnit CompileUnit,
unsigned LineNo, DIType Type,
bool isLocalToUnit,
- bool isDefinition) {
+ bool isDefinition,
+ unsigned VK, unsigned VIndex,
+ DIType ContainingType) {
Value *Elts[] = {
GetTagConstant(dwarf::DW_TAG_subprogram),
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Type.getNode(),
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
- ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition)
+ ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
+ ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
+ ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
+ ContainingType.getNode()
};
- return DISubprogram(MDNode::get(VMContext, &Elts[0], 11));
+ return DISubprogram(MDNode::get(VMContext, &Elts[0], 14));
+}
+
+/// CreateSubprogramDefinition - Create new subprogram descriptor for the
+/// given declaration.
+DISubprogram DIFactory::CreateSubprogramDefinition(DISubprogram &SPDeclaration) {
+ if (SPDeclaration.isDefinition())
+ return DISubprogram(SPDeclaration.getNode());
+
+ MDNode *DeclNode = SPDeclaration.getNode();
+ Value *Elts[] = {
+ GetTagConstant(dwarf::DW_TAG_subprogram),
+ llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ DeclNode->getElement(2), // Context
+ DeclNode->getElement(3), // Name
+ DeclNode->getElement(4), // DisplayName
+ DeclNode->getElement(5), // LinkageName
+ DeclNode->getElement(6), // CompileUnit
+ DeclNode->getElement(7), // LineNo
+ DeclNode->getElement(8), // Type
+ DeclNode->getElement(9), // isLocalToUnit
+ ConstantInt::get(Type::getInt1Ty(VMContext), true),
+ DeclNode->getElement(11), // Virtuality
+ DeclNode->getElement(12), // VIndex
+ DeclNode->getElement(13) // Containting Type
+ };
+ return DISubprogram(MDNode::get(VMContext, &Elts[0], 14));
}
/// CreateGlobalVariable - Create a new descriptor for the specified global.
return DILexicalBlock(MDNode::get(VMContext, &Elts[0], 2));
}
+/// CreateNameSpace - This creates new descriptor for a namespace
+/// with the specified parent context.
+DINameSpace DIFactory::CreateNameSpace(DIDescriptor Context, StringRef Name,
+ DICompileUnit CompileUnit,
+ unsigned LineNo) {
+ Value *Elts[] = {
+ GetTagConstant(dwarf::DW_TAG_namespace),
+ Context.getNode(),
+ MDString::get(VMContext, Name),
+ CompileUnit.getNode(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
+ };
+ return DINameSpace(MDNode::get(VMContext, &Elts[0], 5));
+}
+
/// CreateLocation - Creates a debug info location.
DILocation DIFactory::CreateLocation(unsigned LineNo, unsigned ColumnNo,
DIScope S, DILocation OrigLoc) {
return DILocation(MDNode::get(VMContext, &Elts[0], 4));
}
+/// CreateLocation - Creates a debug info location.
+DILocation DIFactory::CreateLocation(unsigned LineNo, unsigned ColumnNo,
+ DIScope S, MDNode *OrigLoc) {
+ Value *Elts[] = {
+ ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+ ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo),
+ S.getNode(),
+ OrigLoc
+ };
+ return DILocation(MDNode::get(VMContext, &Elts[0], 4));
+}
//===----------------------------------------------------------------------===//
// DIFactory: Routines for inserting code into a function
//===----------------------------------------------------------------------===//
-/// 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::getInt32Ty(VMContext), LineNo),
- ConstantInt::get(llvm::Type::getInt32Ty(VMContext), ColNo),
- CU.getNode()
- };
- 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, SP.getNode(), "", BB);
-}
-
-/// 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);
-
- // Call llvm.dbg.func.start.
- 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 = 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(Value *Storage, DIVariable D,
+Instruction *DIFactory::InsertDeclare(Value *Storage, DIVariable D,
Instruction *InsertBefore) {
// Cast the storage to a {}* for the call to llvm.dbg.declare.
Storage = new BitCastInst(Storage, EmptyStructPtr, "", InsertBefore);
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
Value *Args[] = { Storage, D.getNode() };
- CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
+ return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
}
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
-void DIFactory::InsertDeclare(Value *Storage, DIVariable D,
+Instruction *DIFactory::InsertDeclare(Value *Storage, DIVariable D,
BasicBlock *InsertAtEnd) {
// Cast the storage to a {}* for the call to llvm.dbg.declare.
Storage = new BitCastInst(Storage, EmptyStructPtr, "", InsertAtEnd);
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
Value *Args[] = { Storage, D.getNode() };
- CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
+ return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
}
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIFactory::InsertDbgValueIntrinsic(Value *V, Value *Offset,
+ DIVariable D,
+ Instruction *InsertBefore) {
+ assert(V && "no value passed to dbg.value");
+ assert(Offset->getType() == Type::getInt64Ty(V->getContext()) &&
+ "offset must be i64");
+ if (!ValueFn)
+ ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+ Value *Elts[] = { V };
+ Value *Args[] = { MDNode::get(V->getContext(), Elts, 1), Offset,
+ D.getNode() };
+ return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore);
+}
+
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIFactory::InsertDbgValueIntrinsic(Value *V, Value *Offset,
+ DIVariable D,
+ BasicBlock *InsertAtEnd) {
+ assert(V && "no value passed to dbg.value");
+ assert(Offset->getType() == Type::getInt64Ty(V->getContext()) &&
+ "offset must be i64");
+ if (!ValueFn)
+ ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+ Value *Elts[] = { V };
+ Value *Args[] = { MDNode::get(V->getContext(), Elts, 1), Offset,
+ D.getNode() };
+ return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd);
+}
//===----------------------------------------------------------------------===//
// DebugInfoFinder implementations.
/// processModule - Process entire module and collect debug info.
void DebugInfoFinder::processModule(Module &M) {
+ unsigned MDDbgKind = M.getMDKindID("dbg");
-#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
- MetadataContext &TheMetadata = M.getContext().getMetadata();
- unsigned MDDbgKind = TheMetadata.getMDKind("dbg");
-#endif
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))
+ if (DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(BI))
processDeclare(DDI);
-#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
- else if (MDDbgKind) {
- if (MDNode *L = TheMetadata.getMD(MDDbgKind, BI)) {
- DILocation Loc(L);
- DIScope S(Loc.getScope().getNode());
- if (S.isCompileUnit())
- addCompileUnit(DICompileUnit(S.getNode()));
- else if (S.isSubprogram())
- processSubprogram(DISubprogram(S.getNode()));
- else if (S.isLexicalBlock())
- processLexicalBlock(DILexicalBlock(S.getNode()));
- }
- }
-#endif
+ else if (MDNode *L = BI->getMetadata(MDDbgKind))
+ processLocation(DILocation(L));
}
NamedMDNode *NMD = M.getNamedMetadata("llvm.dbg.gv");
}
}
+/// processLocation - Process DILocation.
+void DebugInfoFinder::processLocation(DILocation Loc) {
+ if (Loc.isNull()) return;
+ DIScope S(Loc.getScope().getNode());
+ if (S.isNull()) return;
+ if (S.isCompileUnit())
+ addCompileUnit(DICompileUnit(S.getNode()));
+ else if (S.isSubprogram())
+ processSubprogram(DISubprogram(S.getNode()));
+ else if (S.isLexicalBlock())
+ processLexicalBlock(DILexicalBlock(S.getNode()));
+ processLocation(Loc.getOrigLocation());
+}
+
/// processType - Process DIType.
void DebugInfoFinder::processType(DIType DT) {
if (!addType(DT))
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()));
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();
- }
+/// findStopPoint - Find the stoppoint coressponding to this instruction, that
+/// is the stoppoint that dominates this instruction.
+const DbgStopPointInst *llvm::findStopPoint(const Instruction *Inst) {
+ if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(Inst))
+ return DSI;
- return 0;
- }
+ const BasicBlock *BB = Inst->getParent();
+ BasicBlock::const_iterator I = Inst, B;
+ while (BB) {
+ B = BB->begin();
- /// 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)
+ // 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;
-
- // 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();
- 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) {
- 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)) {
- const DbgDeclareInst *DDI = findDbgDeclare(*I, false);
- if (DDI) return DDI;
- }
- return 0;
- }
-
- // 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;
+ // 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();
}
-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));
-
- if (const char *D = Var.getDisplayName())
- DisplayName = D;
- 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()));
-
- if (const char *D = Var.getName())
- DisplayName = D;
- LineNo = Var.getLineNumber();
- Unit = Var.getCompileUnit();
- TypeD = Var.getType();
- }
+ return 0;
+}
- if (const char *T = TypeD.getName())
- Type = T;
- if (const char *F = Unit.getFilename())
- File = F;
- if (const char *D = Unit.getDirectory())
- Dir = D;
- return true;
- }
+/// findBBStopPoint - Find the stoppoint corresponding to first real
+/// (non-debug intrinsic) instruction in this Basic Block, and return the
+/// stoppoint for it.
+const DbgStopPointInst *llvm::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;
- /// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgStopPointInst &SPI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(SPI.getContext(), OptLev);
- }
+ // 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());
- /// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(FSI.getSubprogram(), OptLev);
- }
+ return 0;
+}
- /// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(RSI.getContext(), OptLev);
- }
+Value *llvm::findDbgGlobalDeclare(GlobalVariable *V) {
+ const Module *M = V->getParent();
+ NamedMDNode *NMD = M->getNamedMetadata("llvm.dbg.gv");
+ if (!NMD)
+ return 0;
- /// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgRegionEndInst &REI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(REI.getContext(), OptLev);
+ 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 *llvm::findDbgDeclare(const Value *V, bool stripCasts) {
+ if (stripCasts) {
+ V = V->stripPointerCasts();
- /// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
- /// info intrinsic.
- bool isValidDebugInfoIntrinsic(DbgDeclareInst &DI,
- CodeGenOpt::Level OptLev) {
- return DIDescriptor::ValidDebugInfo(DI.getVariable(), OptLev);
+ // Look for the bitcast.
+ for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
+ I != E; ++I)
+ if (isa<BitCastInst>(I)) {
+ const DbgDeclareInst *DDI = findDbgDeclare(*I, false);
+ if (DDI) return DDI;
+ }
+ return 0;
}
- /// 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), NULL, 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);
- }
+ // 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;
- /// ExtractDebugLocation - Extract debug location information
- /// from DILocation.
- DebugLoc ExtractDebugLocation(DILocation &Loc,
- DebugLocTracker &DebugLocInfo) {
- DebugLoc DL;
- MDNode *Context = Loc.getScope().getNode();
- MDNode *InlinedLoc = NULL;
- if (!Loc.getOrigLocation().isNull())
- InlinedLoc = Loc.getOrigLocation().getNode();
- // If this location is already tracked then use it.
- DebugLocTuple Tuple(Context, InlinedLoc, Loc.getLineNumber(),
- Loc.getColumnNumber());
- 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);
- }
+ return 0;
+}
- /// 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(), NULL, 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);
+bool llvm::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));
+
+ StringRef D = Var.getDisplayName();
+ if (!D.empty())
+ DisplayName = D;
+ 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()));
+
+ StringRef D = Var.getName();
+ if (!D.empty())
+ DisplayName = D;
+ LineNo = Var.getLineNumber();
+ Unit = Var.getCompileUnit();
+ TypeD = Var.getType();
}
- /// 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;
- }
+ StringRef T = TypeD.getName();
+ if (!T.empty())
+ Type = T;
+ StringRef F = Unit.getFilename();
+ if (!F.empty())
+ File = F;
+ StringRef D = Unit.getDirectory();
+ if (!D.empty())
+ Dir = D;
+ 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;
+/// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
+/// info intrinsic.
+bool llvm::isValidDebugInfoIntrinsic(DbgStopPointInst &SPI, unsigned OptLev) {
+ return DIDescriptor::ValidDebugInfo(SPI.getContext(), OptLev);
+}
- return true;
- }
+/// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
+/// info intrinsic.
+bool llvm::isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI, unsigned OptLev) {
+ return DIDescriptor::ValidDebugInfo(FSI.getSubprogram(), OptLev);
+}
+
+/// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
+/// info intrinsic.
+bool llvm::isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI, unsigned OptLev) {
+ return DIDescriptor::ValidDebugInfo(RSI.getContext(), OptLev);
+}
+
+/// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
+/// info intrinsic.
+bool llvm::isValidDebugInfoIntrinsic(DbgRegionEndInst &REI, unsigned OptLev) {
+ return DIDescriptor::ValidDebugInfo(REI.getContext(), OptLev);
+}
+
+/// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
+/// info intrinsic.
+bool llvm::isValidDebugInfoIntrinsic(DbgDeclareInst &DI, unsigned OptLev) {
+ return DIDescriptor::ValidDebugInfo(DI.getVariable(), OptLev);
+}
+
+/// ExtractDebugLocation - Extract debug location information
+/// from llvm.dbg.stoppoint intrinsic.
+DebugLoc llvm::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), NULL, 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 DILocation.
+DebugLoc llvm::ExtractDebugLocation(DILocation &Loc,
+ DebugLocTracker &DebugLocInfo) {
+ DebugLoc DL;
+ MDNode *Context = Loc.getScope().getNode();
+ MDNode *InlinedLoc = NULL;
+ if (!Loc.getOrigLocation().isNull())
+ InlinedLoc = Loc.getOrigLocation().getNode();
+ // If this location is already tracked then use it.
+ DebugLocTuple Tuple(Context, InlinedLoc, Loc.getLineNumber(),
+ Loc.getColumnNumber());
+ 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 llvm::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(), NULL, 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);
+}
+
+/// getDISubprogram - Find subprogram that is enclosing this scope.
+DISubprogram llvm::getDISubprogram(MDNode *Scope) {
+ DIDescriptor D(Scope);
+ if (D.isNull())
+ return DISubprogram();
+
+ if (D.isCompileUnit())
+ return DISubprogram();
+
+ if (D.isSubprogram())
+ return DISubprogram(Scope);
+
+ if (D.isLexicalBlock())
+ return getDISubprogram(DILexicalBlock(Scope).getContext().getNode());
+
+ return DISubprogram();
+}
+
+/// getDICompositeType - Find underlying composite type.
+DICompositeType llvm::getDICompositeType(DIType T) {
+ if (T.isNull())
+ return DICompositeType();
+
+ if (T.isCompositeType())
+ return DICompositeType(T.getNode());
+
+ if (T.isDerivedType())
+ return getDICompositeType(DIDerivedType(T.getNode()).getTypeDerivedFrom());
+
+ return DICompositeType();
}
projects / oota-llvm.git / blobdiff