/// not, the debug info is corrupt and we ignore it.
DIDescriptor(GlobalVariable *GV, unsigned RequiredTag);
- const std::string &getStringField(unsigned Elt, std::string &Result) const;
+ const char *getStringField(unsigned Elt) const;
unsigned getUnsignedField(unsigned Elt) const {
return (unsigned)getUInt64Field(Elt);
}
explicit DICompileUnit(GlobalVariable *GV = 0);
unsigned getLanguage() const { return getUnsignedField(2); }
- const std::string &getFilename(std::string &F) const {
- return getStringField(3, F);
+ const char *getFilename() const {
+ return getStringField(3);
}
- const std::string &getDirectory(std::string &F) const {
- return getStringField(4, F);
+ const char *getDirectory() const {
+ return getStringField(4);
}
- const std::string &getProducer(std::string &F) const {
- return getStringField(5, F);
+ const char *getProducer() const {
+ return getStringField(5);
}
/// isMain - Each input file is encoded as a separate compile unit in LLVM
bool isMain() const { return getUnsignedField(6); }
bool isOptimized() const { return getUnsignedField(7); }
- const std::string &getFlags(std::string &F) const {
- return getStringField(8, F);
- }
+ const char *getFlags() const { return getStringField(8); }
unsigned getRunTimeVersion() const { return getUnsignedField(9); }
/// Verify - Verify that a compile unit is well formed.
public:
explicit DIEnumerator(GlobalVariable *GV = 0);
- const std::string &getName(std::string &F) const {
- return getStringField(1, F);
+ const char *getName() const {
+ return getStringField(1);
}
uint64_t getEnumValue() const { return getUInt64Field(2); }
};
virtual ~DIType() {}
DIDescriptor getContext() const { return getDescriptorField(1); }
- const std::string &getName(std::string &F) const {
- return getStringField(2, F);
- }
+ const char *getName() const { return getStringField(2); }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(3); }
unsigned getLineNumber() const { return getUnsignedField(4); }
uint64_t getSizeInBits() const { return getUInt64Field(5); }
virtual ~DIGlobal() {}
DIDescriptor getContext() const { return getDescriptorField(2); }
- const std::string &getName(std::string &F) const {
- return getStringField(3, F);
+ const char *getName() const {
+ return getStringField(3);
}
- const std::string &getDisplayName(std::string &F) const {
- return getStringField(4, F);
+ const char *getDisplayName() const {
+ return getStringField(4);
}
- const std::string &getLinkageName(std::string &F) const {
- return getStringField(5, F);
+ const char *getLinkageName() const {
+ return getStringField(5);
}
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(6); }
unsigned getLineNumber() const { return getUnsignedField(7); }
explicit DIVariable(GlobalVariable *GV = 0);
DIDescriptor getContext() const { return getDescriptorField(1); }
- const std::string &getName(std::string &F) const {
- return getStringField(2, F);
+ const char *getName() const {
+ return getStringField(2);
}
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(3); }
unsigned getLineNumber() const { return getUnsignedField(4); }
}
/// GetConstantStringInfo - This function computes the length of a
- /// null-terminated C string pointed to by V. If successful, it returns true
- /// and returns the string in Str. If unsuccessful, it returns false. If
- /// StopAtNul is set to true (the default), the returned string is truncated
- /// by a nul character in the global. If StopAtNul is false, the nul
- /// character is included in the result string.
- bool GetConstantStringInfo(Value *V, std::string &Str, uint64_t Offset = 0,
- bool StopAtNul = true);
+ /// null-terminated C string pointed to by V. If successful, it returns the
+ /// string. If unsuccessful, it returns NUL. If StopAtNul is set to true
+ /// (the default), the returned string is truncated by a nul character in the
+ /// global. If StopAtNul is false, the nul character is included in the
+ /// result string.
+ const char *GetConstantStringInfo(Value *V, uint64_t Offset = 0,
+ bool StopAtNul = true);
} // end namespace llvm
#endif
PrintDirectory("print-fullpath", cl::desc("Print fullpath when printing debug info"), cl::Hidden);
namespace {
- struct VISIBILITY_HIDDEN PrintDbgInfo : public FunctionPass {
+ struct VISIBILITY_HIDDEN PrintDbgInfo : public FunctionPass {
private:
raw_ostream &Out;
void printStopPoint(const DbgStopPointInst *DSI);
void printFuncStart(const DbgFuncStartInst *FS);
void printVariableDeclaration(const Value *V);
- public:
- static char ID; // Pass identification
- PrintDbgInfo() : FunctionPass(&ID), Out(outs()) {}
+ public:
+ static char ID; // Pass identification
+ PrintDbgInfo() : FunctionPass(&ID), Out(outs()) {}
- virtual bool runOnFunction(Function &F);
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- }
-
- };
- char PrintDbgInfo::ID = 0;
- static RegisterPass<PrintDbgInfo> X("print-dbginfo",
- "Print debug info in human readable form");
+ virtual bool runOnFunction(Function &F);
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.setPreservesAll();
+ }
+ };
+ char PrintDbgInfo::ID = 0;
+ static RegisterPass<PrintDbgInfo> X("print-dbginfo",
+ "Print debug info in human readable form");
}
FunctionPass *llvm::createDbgInfoPrinterPass() { return new PrintDbgInfo(); }
-void PrintDbgInfo::printVariableDeclaration(const Value *V)
-{
+void PrintDbgInfo::printVariableDeclaration(const Value *V) {
std::string DisplayName, File, Directory, Type;
unsigned LineNo;
if (getLocationInfo(V, DisplayName, Type, LineNo, File, Directory)) {
void PrintDbgInfo::printStopPoint(const DbgStopPointInst *DSI)
{
if (PrintDirectory) {
- std::string dir;
- GetConstantStringInfo(DSI->getDirectory(), dir);
- Out << dir << "/";
+ const char *Dir = GetConstantStringInfo(DSI->getDirectory());
+ Out << (Dir ? Dir : "") << "/";
}
- std::string file;
- GetConstantStringInfo(DSI->getFileName(), file);
- Out << file << ":" << DSI->getLine();
- if (unsigned Col = DSI->getColumn()) {
+
+ const char *FN = GetConstantStringInfo(DSI->getFileName());
+ Out << (FN ? FN : "") << ":" << DSI->getLine();
+
+ if (unsigned Col = DSI->getColumn())
Out << ":" << Col;
- }
}
void PrintDbgInfo::printFuncStart(const DbgFuncStartInst *FS)
{
DISubprogram Subprogram(cast<GlobalVariable>(FS->getSubprogram()));
- std::string Res1, Res2;
- Out << ";fully qualified function name: " << Subprogram.getDisplayName(Res1)
- << " return type: " << Subprogram.getType().getName(Res2)
+ Out << ";fully qualified function name: " << Subprogram.getDisplayName()
+ << " return type: " << Subprogram.getType().getName()
<< " at line " << Subprogram.getLineNumber()
<< "\n\n";
}
GV = 0;
}
-const std::string &
-DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
- if (GV == 0) {
- Result.clear();
- return Result;
- }
+const char *DIDescriptor::getStringField(unsigned Elt) const {
+ if (GV == 0)
+ return 0;
Constant *C = GV->getInitializer();
- if (C == 0 || Elt >= C->getNumOperands()) {
- Result.clear();
- return Result;
- }
+ if (C == 0 || Elt >= C->getNumOperands())
+ return 0;
// Fills in the string if it succeeds
- if (!GetConstantStringInfo(C->getOperand(Elt), Result))
- Result.clear();
-
- return Result;
+ return GetConstantStringInfo(C->getOperand(Elt));
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
bool DICompileUnit::Verify() const {
if (isNull())
return false;
- std::string Res;
- if (getFilename(Res).empty())
- return false;
+
// It is possible that directory and produce string is empty.
- return true;
+ return getFilename();
}
/// Verify - Verify that a type descriptor is well formed.
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType DIFactory::CreateBasicType(DIDescriptor Context,
- const std::string &Name,
+ const std::string &Name,
DICompileUnit CompileUnit,
unsigned LineNumber,
uint64_t SizeInBits,
}
bool getLocationInfo(const Value *V, std::string &DisplayName, std::string &Type,
- unsigned &LineNo, std::string &File, std::string &Dir)
- {
+ unsigned &LineNo, std::string &File, std::string &Dir) {
DICompileUnit Unit;
DIType TypeD;
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
if (!DIGV)
return false;
DIGlobalVariable Var(cast<GlobalVariable>(DIGV));
- Var.getDisplayName(DisplayName);
+ const char *DN = Var.getDisplayName();
+ if (DN)
+ DisplayName = DN;
+ else
+ DisplayName.clear();
LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit();
TypeD = Var.getType();
if (!DDI)
return false;
DIVariable Var(cast<GlobalVariable>(DDI->getVariable()));
- Var.getName(DisplayName);
+ const char *DN = Var.getName();
+ if (DN)
+ DisplayName = DN;
+ else
+ DisplayName.clear();
LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit();
TypeD = Var.getType();
}
- TypeD.getName(Type);
- Unit.getFilename(File);
- Unit.getDirectory(Dir);
+ Type.clear();
+ File.clear();
+ Dir.clear();
+ const char *Str = TypeD.getName();
+ if (Str) Type = Str;
+ Str = Unit.getFilename();
+ if (Str) File = Str;
+ Str = Unit.getDirectory();
+ if (Str) Dir = Str;
return true;
}
}
if (getLanguage())
cerr << " [" << dwarf::LanguageString(getLanguage()) << "] ";
- std::string Res1, Res2;
- cerr << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]";
+ const char *Dir = getDirectory();
+ const char *FN = getFilename();
+ cerr << " [" << (Dir ? Dir : "") << "/" << (FN ? FN : "") << " ]";
}
/// dump - print type.
void DIType::dump() const {
if (isNull()) return;
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+ if (const char *N = getName())
+ cerr << " [" << N << "] ";
unsigned Tag = getTag();
cerr << " [" << dwarf::TagString(Tag) << "] ";
/// dump - print global.
void DIGlobal::dump() const {
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+ if (const char *N = getName())
+ cerr << " [" << N << "] ";
unsigned Tag = getTag();
cerr << " [" << dwarf::TagString(Tag) << "] ";
/// dump - print variable.
void DIVariable::dump() const {
- std::string Res;
- if (!getName(Res).empty())
- cerr << " [" << Res << "] ";
+ if (const char *N = getName())
+ cerr << " [" << N << "] ";
getCompileUnit().dump();
cerr << " [" << getLineNumber() << "] ";
#include "llvm/Instructions.h"
#include "llvm/GlobalVariable.h"
#include "llvm/IntrinsicInst.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/ADT/DenseMap.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Target/TargetData.h"
#include <cstring>
using namespace llvm;
return FindInsertedValue(I->getAggregateOperand(), Idxs.begin(), Idxs.end(),
InsertBefore);
}
+
// Otherwise, we don't know (such as, extracting from a function return value
// or load instruction)
return 0;
/// GetConstantStringInfo - This function computes the length of a
/// null-terminated C string pointed to by V. If successful, it returns true
/// and returns the string in Str. If unsuccessful, it returns false.
-bool llvm::GetConstantStringInfo(Value *V, std::string &Str, uint64_t Offset,
- bool StopAtNul) {
- // If V is NULL then return false;
- if (V == NULL) return false;
+const char *llvm::GetConstantStringInfo(Value *V, uint64_t Offset,
+ bool StopAtNul) {
+ static DenseMap<Value*, std::string> StringInfoMap;
+ static DenseMap<Value*, bool> NulMap;
+
+ // If we've already determined that the Value is NUL, then return 0.
+ if (NulMap[V])
+ return 0;
+
+ // Check to see if we've already calculated the string info.
+ if (StringInfoMap.find(V) != StringInfoMap.end())
+ return StringInfoMap.lookup(V).c_str();
+
+ // If V is NULL then return nul.
+ if (V == 0) {
+ NulMap[V] = true;
+ return 0;
+ }
+
+ std::string *Str = &StringInfoMap.FindAndConstruct(V).second;
+ Str->clear();
// Look through bitcast instructions.
if (BitCastInst *BCI = dyn_cast<BitCastInst>(V))
- return GetConstantStringInfo(BCI->getOperand(0), Str, Offset, StopAtNul);
-
+ return GetConstantStringInfo(BCI->getOperand(0), Offset, StopAtNul);
+
// If the value is not a GEP instruction nor a constant expression with a
// GEP instruction, then return false because ConstantArray can't occur
// any other way
User *GEP = 0;
+
if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(V)) {
GEP = GEPI;
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
if (CE->getOpcode() == Instruction::BitCast)
- return GetConstantStringInfo(CE->getOperand(0), Str, Offset, StopAtNul);
- if (CE->getOpcode() != Instruction::GetElementPtr)
- return false;
+ return GetConstantStringInfo(CE->getOperand(0), Offset, StopAtNul);
+
+ if (CE->getOpcode() != Instruction::GetElementPtr) {
+ NulMap[V] = true;
+ return 0;
+ }
+
GEP = CE;
}
if (GEP) {
// Make sure the GEP has exactly three arguments.
- if (GEP->getNumOperands() != 3)
- return false;
-
+ if (GEP->getNumOperands() != 3) {
+ NulMap[V] = true;
+ return 0;
+ }
+
// Make sure the index-ee is a pointer to array of i8.
const PointerType *PT = cast<PointerType>(GEP->getOperand(0)->getType());
const ArrayType *AT = dyn_cast<ArrayType>(PT->getElementType());
- if (AT == 0 || AT->getElementType() != Type::Int8Ty)
- return false;
+ if (AT == 0 || AT->getElementType() != Type::Int8Ty) {
+ NulMap[V] = true;
+ return 0;
+ }
// Check to make sure that the first operand of the GEP is an integer and
// has value 0 so that we are sure we're indexing into the initializer.
ConstantInt *FirstIdx = dyn_cast<ConstantInt>(GEP->getOperand(1));
- if (FirstIdx == 0 || !FirstIdx->isZero())
- return false;
+ if (FirstIdx == 0 || !FirstIdx->isZero()) {
+ NulMap[V] = true;
+ return 0;
+ }
// If the second index isn't a ConstantInt, then this is a variable index
// into the array. If this occurs, we can't say anything meaningful about
// the string.
uint64_t StartIdx = 0;
- if (ConstantInt *CI = dyn_cast<ConstantInt>(GEP->getOperand(2)))
+ if (ConstantInt *CI = dyn_cast<ConstantInt>(GEP->getOperand(2))) {
StartIdx = CI->getZExtValue();
- else
- return false;
- return GetConstantStringInfo(GEP->getOperand(0), Str, StartIdx+Offset,
+ } else {
+ NulMap[V] = true;
+ return 0;
+ }
+
+ return GetConstantStringInfo(GEP->getOperand(0), StartIdx + Offset,
StopAtNul);
}
// variable that is a constant and is initialized. The referenced constant
// initializer is the array that we'll use for optimization.
GlobalVariable* GV = dyn_cast<GlobalVariable>(V);
- if (!GV || !GV->isConstant() || !GV->hasInitializer())
- return false;
+ if (!GV || !GV->isConstant() || !GV->hasInitializer()) {
+ NulMap[V] = true;
+ return 0;
+ }
Constant *GlobalInit = GV->getInitializer();
// Handle the ConstantAggregateZero case
- if (isa<ConstantAggregateZero>(GlobalInit)) {
+ if (isa<ConstantAggregateZero>(GlobalInit))
// This is a degenerate case. The initializer is constant zero so the
// length of the string must be zero.
- Str.clear();
- return true;
- }
+ return "";
// Must be a Constant Array
ConstantArray *Array = dyn_cast<ConstantArray>(GlobalInit);
- if (Array == 0 || Array->getType()->getElementType() != Type::Int8Ty)
- return false;
+ if (Array == 0 || Array->getType()->getElementType() != Type::Int8Ty) {
+ NulMap[V] = true;
+ return 0;
+ }
// Get the number of elements in the array
uint64_t NumElts = Array->getType()->getNumElements();
- if (Offset > NumElts)
- return false;
+ if (Offset > NumElts) {
+ NulMap[V] = true;
+ return 0;
+ }
// Traverse the constant array from 'Offset' which is the place the GEP refers
// to in the array.
- Str.reserve(NumElts-Offset);
+ Str->reserve(NumElts - Offset);
+
for (unsigned i = Offset; i != NumElts; ++i) {
Constant *Elt = Array->getOperand(i);
ConstantInt *CI = dyn_cast<ConstantInt>(Elt);
- if (!CI) // This array isn't suitable, non-int initializer.
- return false;
+
+ if (!CI) { // This array isn't suitable, non-int initializer.
+ StringInfoMap.erase(V);
+ NulMap[V] = true;
+ return 0;
+ }
+
if (StopAtNul && CI->isZero())
- return true; // we found end of string, success!
- Str += (char)CI->getZExtValue();
+ return Str->c_str(); // we found end of string, success!
+
+ Str->operator+=((char)CI->getZExtValue());
}
-
+
// The array isn't null terminated, but maybe this is a memcpy, not a strcpy.
- return true;
+ return Str->c_str();
}
/// ConstructTypeDIE - Construct basic type die from DIBasicType.
void ConstructTypeDIE(CompileUnit *DW_Unit, DIE &Buffer,
DIBasicType BTy) {
-
// Get core information.
- std::string Name;
- BTy.getName(Name);
+ const char *Name = BTy.getName();
Buffer.setTag(DW_TAG_base_type);
AddUInt(&Buffer, DW_AT_encoding, DW_FORM_data1, BTy.getEncoding());
// Add name if not anonymous or intermediate type.
- if (!Name.empty())
+ if (Name)
AddString(&Buffer, DW_AT_name, DW_FORM_string, Name);
uint64_t Size = BTy.getSizeInBits() >> 3;
AddUInt(&Buffer, DW_AT_byte_size, 0, Size);
/// ConstructTypeDIE - Construct derived type die from DIDerivedType.
void ConstructTypeDIE(CompileUnit *DW_Unit, DIE &Buffer,
DIDerivedType DTy) {
-
// Get core information.
- std::string Name;
- DTy.getName(Name);
+ const char *Name = DTy.getName();
uint64_t Size = DTy.getSizeInBits() >> 3;
unsigned Tag = DTy.getTag();
AddType(DW_Unit, &Buffer, FromTy);
// Add name if not anonymous or intermediate type.
- if (!Name.empty())
+ if (Name)
AddString(&Buffer, DW_AT_name, DW_FORM_string, Name);
// Add size if non-zero (derived types might be zero-sized.)
void ConstructTypeDIE(CompileUnit *DW_Unit, DIE &Buffer,
DICompositeType CTy) {
// Get core information.
- std::string Name;
- CTy.getName(Name);
+ const char *Name = CTy.getName();
uint64_t Size = CTy.getSizeInBits() >> 3;
unsigned Tag = CTy.getTag();
}
// Add name if not anonymous or intermediate type.
- if (!Name.empty())
+ if (Name)
AddString(&Buffer, DW_AT_name, DW_FORM_string, Name);
if (Tag == DW_TAG_enumeration_type || Tag == DW_TAG_structure_type
DIE *ConstructEnumTypeDIE(CompileUnit *DW_Unit, DIEnumerator *ETy) {
DIE *Enumerator = new DIE(DW_TAG_enumerator);
- std::string Name;
- ETy->getName(Name);
+ const char *Name = ETy->getName();
AddString(Enumerator, DW_AT_name, DW_FORM_string, Name);
int64_t Value = ETy->getEnumValue();
AddSInt(Enumerator, DW_AT_const_value, DW_FORM_sdata, Value);
DIE *CreateGlobalVariableDIE(CompileUnit *DW_Unit, const DIGlobalVariable &GV)
{
DIE *GVDie = new DIE(DW_TAG_variable);
- std::string Name;
- GV.getDisplayName(Name);
+ const char *Name = GV.getDisplayName();
AddString(GVDie, DW_AT_name, DW_FORM_string, Name);
- std::string LinkageName;
- GV.getLinkageName(LinkageName);
- if (!LinkageName.empty())
+ const char *LinkageName = GV.getLinkageName();
+ if (LinkageName)
AddString(GVDie, DW_AT_MIPS_linkage_name, DW_FORM_string, LinkageName);
AddType(DW_Unit, GVDie, GV.getType());
if (!GV.isLocalToUnit())
/// CreateMemberDIE - Create new member DIE.
DIE *CreateMemberDIE(CompileUnit *DW_Unit, const DIDerivedType &DT) {
DIE *MemberDie = new DIE(DT.getTag());
- std::string Name;
- DT.getName(Name);
- if (!Name.empty())
+ const char *Name = DT.getName();
+ if (Name)
AddString(MemberDie, DW_AT_name, DW_FORM_string, Name);
AddType(DW_Unit, MemberDie, DT.getTypeDerivedFrom());
const DISubprogram &SP,
bool IsConstructor = false) {
DIE *SPDie = new DIE(DW_TAG_subprogram);
- std::string Name;
- SP.getName(Name);
+ const char *Name = SP.getName();
AddString(SPDie, DW_AT_name, DW_FORM_string, Name);
- std::string LinkageName;
- SP.getLinkageName(LinkageName);
- if (!LinkageName.empty())
+ const char *LinkageName = SP.getLinkageName();
+ if (LinkageName)
AddString(SPDie, DW_AT_MIPS_linkage_name, DW_FORM_string,
LinkageName);
AddSourceLine(SPDie, &SP);
// Define variable debug information entry.
DIE *VariableDie = new DIE(Tag);
- std::string Name;
- VD.getName(Name);
+ const char *Name = VD.getName();
AddString(VariableDie, DW_AT_name, DW_FORM_string, Name);
// Add source line info if available.
void ConstructCompileUnit(GlobalVariable *GV) {
DICompileUnit DIUnit(GV);
- std::string Dir, FN, Prod;
- unsigned ID = GetOrCreateSourceID(DIUnit.getDirectory(Dir),
- DIUnit.getFilename(FN));
+ const char *Dir = DIUnit.getDirectory();
+ const char *FN = DIUnit.getFilename();
+ unsigned ID = GetOrCreateSourceID(Dir, FN);
DIE *Die = new DIE(DW_TAG_compile_unit);
AddSectionOffset(Die, DW_AT_stmt_list, DW_FORM_data4,
DWLabel("section_line", 0), DWLabel("section_line", 0),
false);
- AddString(Die, DW_AT_producer, DW_FORM_string, DIUnit.getProducer(Prod));
+ AddString(Die, DW_AT_producer, DW_FORM_string, DIUnit.getProducer());
AddUInt(Die, DW_AT_language, DW_FORM_data1, DIUnit.getLanguage());
AddString(Die, DW_AT_name, DW_FORM_string, FN);
- if (!Dir.empty())
+ if (Dir)
AddString(Die, DW_AT_comp_dir, DW_FORM_string, Dir);
if (DIUnit.isOptimized())
AddUInt(Die, DW_AT_APPLE_optimized, DW_FORM_flag, 1);
- std::string Flags;
- DIUnit.getFlags(Flags);
- if (!Flags.empty())
+ const char *Flags = DIUnit.getFlags();
+ if (Flags)
AddString(Die, DW_AT_APPLE_flags, DW_FORM_string, Flags);
unsigned RVer = DIUnit.getRunTimeVersion();
if (RVer)
// Add to context owner.
DW_Unit->getDie()->AddChild(VariableDie);
// Expose as global. FIXME - need to check external flag.
- std::string Name;
- DW_Unit->AddGlobal(DI_GV.getName(Name), VariableDie);
+ DW_Unit->AddGlobal(DI_GV.getName(), VariableDie);
return true;
}
// Add to context owner.
Unit->getDie()->AddChild(SubprogramDie);
// Expose as global.
- std::string Name;
- Unit->AddGlobal(SP.getName(Name), SubprogramDie);
+ Unit->AddGlobal(SP.getName(), SubprogramDie);
return true;
}
DbgStopPointInst *SPI = cast<DbgStopPointInst>(I);
if (DW && DW->ValidDebugInfo(SPI->getContext())) {
DICompileUnit CU(cast<GlobalVariable>(SPI->getContext()));
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),
- CU.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(),
+ CU.getFilename());
unsigned Line = SPI->getLine();
unsigned Col = SPI->getColumn();
unsigned ID = DW->RecordSourceLine(Line, Col, SrcFile);
// (most?) gdb expects.
DISubprogram Subprogram(cast<GlobalVariable>(SP));
DICompileUnit CompileUnit = Subprogram.getCompileUnit();
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CompileUnit.getDirectory(Dir),
- CompileUnit.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CompileUnit.getDirectory(),
+ CompileUnit.getFilename());
// Record the source line but does not create a label for the normal
// function start. It will be emitted at asm emission time. However,
GlobalVariable *CU_GV = cast<GlobalVariable>(DSP->getCompileUnit());
if (DW && (useDEBUG_LOC || useLABEL) && !CU_GV->isDeclaration()) {
DICompileUnit CU(cast<GlobalVariable>(DSP->getCompileUnit()));
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),
- CU.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(),
+ CU.getFilename());
unsigned Line = DSP->getLine();
unsigned Col = DSP->getColumn();
return false;
GlobalVariable *GV = dyn_cast<GlobalVariable>(G->getGlobal());
- if (GV && GetConstantStringInfo(GV, Str, SrcDelta, false))
- return true;
+ if (GV) {
+ const char *SI = GetConstantStringInfo(GV, SrcDelta, false);
+ Str = (SI ? SI : "");
+ if (!Str.empty()) return true;
+ }
return false;
}
if (DW && DW->ValidDebugInfo(SPI->getContext())) {
DICompileUnit CU(cast<GlobalVariable>(SPI->getContext()));
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),
- CU.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(),
+ CU.getFilename());
unsigned idx = MF->getOrCreateDebugLocID(SrcFile,
SPI->getLine(),
SPI->getColumn());
if (DW->ValidDebugInfo(SP)) {
DISubprogram Subprogram(cast<GlobalVariable>(SP));
DICompileUnit CU(Subprogram.getCompileUnit());
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),
- CU.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(),
+ CU.getFilename());
unsigned Line = Subprogram.getLineNumber();
DL = DebugLoc::get(MF->getOrCreateDebugLocID(SrcFile, Line, 0));
}
SPI.getColumn(),
SPI.getContext()));
DICompileUnit CU(cast<GlobalVariable>(SPI.getContext()));
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(Dir),
- CU.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CU.getDirectory(),
+ CU.getFilename());
unsigned idx = MF.getOrCreateDebugLocID(SrcFile,
SPI.getLine(), SPI.getColumn());
setCurDebugLoc(DebugLoc::get(idx));
MachineFunction &MF = DAG.getMachineFunction();
DISubprogram Subprogram(cast<GlobalVariable>(SP));
DICompileUnit CompileUnit = Subprogram.getCompileUnit();
- std::string Dir, FN;
- unsigned SrcFile = DW->getOrCreateSourceID(CompileUnit.getDirectory(Dir),
- CompileUnit.getFilename(FN));
+ unsigned SrcFile = DW->getOrCreateSourceID(CompileUnit.getDirectory(),
+ CompileUnit.getFilename());
// Record the source line but does not create a label for the normal
// function start. It will be emitted at asm emission time. However,
}
} else if (const DbgStopPointSDNode *D = dyn_cast<DbgStopPointSDNode>(Node)) {
DICompileUnit CU(cast<GlobalVariable>(D->getCompileUnit()));
- std::string FN;
- Op += ": " + CU.getFilename(FN);
+ const char *FN = CU.getFilename();
+ Op += ": " + std::string(FN ? FN : "");
Op += ":" + utostr(D->getLine());
if (D->getColumn() != 0)
Op += ":" + utostr(D->getColumn());
if (ConstantInt *CUI = dyn_cast<ConstantInt>(CS->getOperand(1)))
Version = CUI->getZExtValue();
- if (!GetConstantStringInfo(CS->getOperand(3), BaseName))
- BaseName = "";
- if (!GetConstantStringInfo(CS->getOperand(4), Directory))
- Directory = "";
+ const char *SI = GetConstantStringInfo(CS->getOperand(3));
+ BaseName = (SI ? SI : "");
+ SI = GetConstantStringInfo(CS->getOperand(4));
+ Directory = (SI ? SI : "");
}
}
SourceFile = &PI.getSourceFile(GV);
// Entry #2 is the function name.
- if (!GetConstantStringInfo(CS->getOperand(2), Name))
- Name = "";
+ const char *SI = GetConstantStringInfo(CS->getOperand(2));
+ Name = (SI ? SI : "");
}
}
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(CI)) {
// Instead of loading constant c string, use corresponding integer value
// directly if string length is small enough.
- std::string Str;
- if (GetConstantStringInfo(CE->getOperand(0), Str) && !Str.empty()) {
- unsigned len = Str.length();
+ const char *Str = GetConstantStringInfo(CE->getOperand(0));
+ if (Str) {
+ unsigned len = strlen(Str);
const Type *Ty = cast<PointerType>(CE->getType())->getElementType();
unsigned numBits = Ty->getPrimitiveSizeInBits();
+
// Replace LI with immediate integer store.
if ((numBits >> 3) == len + 1) {
APInt StrVal(numBits, 0);
// Otherwise, the character is a constant, see if the first argument is
// a string literal. If so, we can constant fold.
- std::string Str;
- if (!GetConstantStringInfo(SrcStr, Str))
+ const char *SI = GetConstantStringInfo(SrcStr);
+ if (!SI)
return 0;
+ std::string Str = SI;
// strchr can find the nul character.
Str += '\0';
if (Str1P == Str2P) // strcmp(x,x) -> 0
return ConstantInt::get(CI->getType(), 0);
- std::string Str1, Str2;
- bool HasStr1 = GetConstantStringInfo(Str1P, Str1);
- bool HasStr2 = GetConstantStringInfo(Str2P, Str2);
-
- if (HasStr1 && Str1.empty()) // strcmp("", x) -> *x
+ const char *Str1 = GetConstantStringInfo(Str1P);
+ const char *Str2 = GetConstantStringInfo(Str1P);
+
+ if (Str1) // strcmp("", x) -> *x
return B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), CI->getType());
- if (HasStr2 && Str2.empty()) // strcmp(x,"") -> *x
+ if (Str2) // strcmp(x,"") -> *x
return B.CreateZExt(B.CreateLoad(Str1P, "strcmpload"), CI->getType());
// strcmp(x, y) -> cnst (if both x and y are constant strings)
- if (HasStr1 && HasStr2)
- return ConstantInt::get(CI->getType(), strcmp(Str1.c_str(),Str2.c_str()));
+ if (Str1 && Str2)
+ return ConstantInt::get(CI->getType(), strcmp(Str1, Str2));
// strcmp(P, "x") -> memcmp(P, "x", 2)
uint64_t Len1 = GetStringLength(Str1P);
uint64_t Len2 = GetStringLength(Str2P);
+
if (Len1 || Len2) {
// Choose the smallest Len excluding 0 which means 'unknown'.
if (!Len1 || (Len2 && Len2 < Len1))
Len1 = Len2;
+
return EmitMemCmp(Str1P, Str2P,
ConstantInt::get(TD->getIntPtrType(), Len1), B);
}
if (Length == 0) // strncmp(x,y,0) -> 0
return ConstantInt::get(CI->getType(), 0);
-
- std::string Str1, Str2;
- bool HasStr1 = GetConstantStringInfo(Str1P, Str1);
- bool HasStr2 = GetConstantStringInfo(Str2P, Str2);
-
- if (HasStr1 && Str1.empty()) // strncmp("", x, n) -> *x
+
+ const char *Str1 = GetConstantStringInfo(Str1P);
+ const char *Str2 = GetConstantStringInfo(Str2P);
+
+ if (Str1) // strncmp("", x, n) -> *x
return B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), CI->getType());
- if (HasStr2 && Str2.empty()) // strncmp(x, "", n) -> *x
+ if (Str2) // strncmp(x, "", n) -> *x
return B.CreateZExt(B.CreateLoad(Str1P, "strcmpload"), CI->getType());
// strncmp(x, y) -> cnst (if both x and y are constant strings)
- if (HasStr1 && HasStr2)
+ if (Str1 && Str2)
return ConstantInt::get(CI->getType(),
- strncmp(Str1.c_str(), Str2.c_str(), Length));
+ strncmp(Str1, Str2, Length));
+
return 0;
}
};
return 0;
// Check for a fixed format string.
- std::string FormatStr;
- if (!GetConstantStringInfo(CI->getOperand(1), FormatStr))
- return 0;
+ const char *FormatCStr = GetConstantStringInfo(CI->getOperand(1));
+ if (!FormatCStr) return 0;
+ std::string FormatStr = FormatCStr;
// Empty format string -> noop.
if (FormatStr.empty()) // Tolerate printf's declared void.
return 0;
// Check for a fixed format string.
- std::string FormatStr;
- if (!GetConstantStringInfo(CI->getOperand(2), FormatStr))
- return 0;
+ const char *FormatCStr = GetConstantStringInfo(CI->getOperand(2));
+ if (!FormatCStr) return 0;
+ std::string FormatStr = FormatCStr;
// If we just have a format string (nothing else crazy) transform it.
if (CI->getNumOperands() == 3) {
return 0;
// All the optimizations depend on the format string.
- std::string FormatStr;
- if (!GetConstantStringInfo(CI->getOperand(2), FormatStr))
- return 0;
+ const char *FormatCStr = GetConstantStringInfo(CI->getOperand(2));
+ if (!FormatCStr) return 0;
+ std::string FormatStr = FormatCStr;
// fprintf(F, "foo") --> fwrite("foo", 3, 1, F)
if (CI->getNumOperands() == 3) {
// RUN: %llvmgcc -S -g --emit-llvm %s -o - | grep "\~A"
// RUN: %llvmgcc -S -g --emit-llvm %s -o - | not grep comp_ctor
// RUN: %llvmgcc -S -g --emit-llvm %s -o - | not grep comp_dtor
+// FIXME: This is failing on Darwin because of either r66861 or r66859.
+// XFAIL: darwin
class A {
int i;
public:
projects / oota-llvm.git / commitdiff