1 //===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This library implements the functionality defined in llvm/Assembly/Writer.h
12 // Note that these routines must be extremely tolerant of various errors in the
13 // LLVM code, because it can be used for debugging transformations.
15 //===----------------------------------------------------------------------===//
17 #include "llvm/Assembly/Writer.h"
18 #include "llvm/Assembly/PrintModulePass.h"
19 #include "llvm/Assembly/AsmAnnotationWriter.h"
20 #include "llvm/CallingConv.h"
21 #include "llvm/Constants.h"
22 #include "llvm/DerivedTypes.h"
23 #include "llvm/InlineAsm.h"
24 #include "llvm/IntrinsicInst.h"
25 #include "llvm/Operator.h"
26 #include "llvm/Module.h"
27 #include "llvm/ValueSymbolTable.h"
28 #include "llvm/TypeSymbolTable.h"
29 #include "llvm/ADT/DenseSet.h"
30 #include "llvm/ADT/StringExtras.h"
31 #include "llvm/ADT/STLExtras.h"
32 #include "llvm/Support/CFG.h"
33 #include "llvm/Support/Dwarf.h"
34 #include "llvm/Support/ErrorHandling.h"
35 #include "llvm/Support/MathExtras.h"
36 #include "llvm/Support/FormattedStream.h"
42 // Make virtual table appear in this compilation unit.
43 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
45 //===----------------------------------------------------------------------===//
47 //===----------------------------------------------------------------------===//
49 static const Module *getModuleFromVal(const Value *V) {
50 if (const Argument *MA = dyn_cast<Argument>(V))
51 return MA->getParent() ? MA->getParent()->getParent() : 0;
53 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
54 return BB->getParent() ? BB->getParent()->getParent() : 0;
56 if (const Instruction *I = dyn_cast<Instruction>(V)) {
57 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
58 return M ? M->getParent() : 0;
61 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
62 return GV->getParent();
66 // PrintEscapedString - Print each character of the specified string, escaping
67 // it if it is not printable or if it is an escape char.
68 static void PrintEscapedString(const StringRef &Name,
70 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
71 unsigned char C = Name[i];
72 if (isprint(C) && C != '\\' && C != '"')
75 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
86 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
87 /// prefixed with % (if the string only contains simple characters) or is
88 /// surrounded with ""'s (if it has special chars in it). Print it out.
89 static void PrintLLVMName(raw_ostream &OS, const StringRef &Name,
91 assert(Name.data() && "Cannot get empty name!");
93 default: llvm_unreachable("Bad prefix!");
95 case GlobalPrefix: OS << '@'; break;
96 case LabelPrefix: break;
97 case LocalPrefix: OS << '%'; break;
100 // Scan the name to see if it needs quotes first.
101 bool NeedsQuotes = isdigit(Name[0]);
103 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
105 if (!isalnum(C) && C != '-' && C != '.' && C != '_') {
112 // If we didn't need any quotes, just write out the name in one blast.
118 // Okay, we need quotes. Output the quotes and escape any scary characters as
121 PrintEscapedString(Name, OS);
125 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
126 /// prefixed with % (if the string only contains simple characters) or is
127 /// surrounded with ""'s (if it has special chars in it). Print it out.
128 static void PrintLLVMName(raw_ostream &OS, const Value *V) {
129 PrintLLVMName(OS, V->getName(),
130 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
133 //===----------------------------------------------------------------------===//
134 // TypePrinting Class: Type printing machinery
135 //===----------------------------------------------------------------------===//
137 static DenseMap<const Type *, std::string> &getTypeNamesMap(void *M) {
138 return *static_cast<DenseMap<const Type *, std::string>*>(M);
141 void TypePrinting::clear() {
142 getTypeNamesMap(TypeNames).clear();
145 bool TypePrinting::hasTypeName(const Type *Ty) const {
146 return getTypeNamesMap(TypeNames).count(Ty);
149 void TypePrinting::addTypeName(const Type *Ty, const std::string &N) {
150 getTypeNamesMap(TypeNames).insert(std::make_pair(Ty, N));
154 TypePrinting::TypePrinting() {
155 TypeNames = new DenseMap<const Type *, std::string>();
158 TypePrinting::~TypePrinting() {
159 delete &getTypeNamesMap(TypeNames);
162 /// CalcTypeName - Write the specified type to the specified raw_ostream, making
163 /// use of type names or up references to shorten the type name where possible.
164 void TypePrinting::CalcTypeName(const Type *Ty,
165 SmallVectorImpl<const Type *> &TypeStack,
166 raw_ostream &OS, bool IgnoreTopLevelName) {
167 // Check to see if the type is named.
168 if (!IgnoreTopLevelName) {
169 DenseMap<const Type *, std::string> &TM = getTypeNamesMap(TypeNames);
170 DenseMap<const Type *, std::string>::iterator I = TM.find(Ty);
177 // Check to see if the Type is already on the stack...
178 unsigned Slot = 0, CurSize = TypeStack.size();
179 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
181 // This is another base case for the recursion. In this case, we know
182 // that we have looped back to a type that we have previously visited.
183 // Generate the appropriate upreference to handle this.
184 if (Slot < CurSize) {
185 OS << '\\' << unsigned(CurSize-Slot); // Here's the upreference
189 TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
191 switch (Ty->getTypeID()) {
192 case Type::VoidTyID: OS << "void"; break;
193 case Type::FloatTyID: OS << "float"; break;
194 case Type::DoubleTyID: OS << "double"; break;
195 case Type::X86_FP80TyID: OS << "x86_fp80"; break;
196 case Type::FP128TyID: OS << "fp128"; break;
197 case Type::PPC_FP128TyID: OS << "ppc_fp128"; break;
198 case Type::LabelTyID: OS << "label"; break;
199 case Type::MetadataTyID: OS << "metadata"; break;
200 case Type::IntegerTyID:
201 OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
204 case Type::FunctionTyID: {
205 const FunctionType *FTy = cast<FunctionType>(Ty);
206 CalcTypeName(FTy->getReturnType(), TypeStack, OS);
208 for (FunctionType::param_iterator I = FTy->param_begin(),
209 E = FTy->param_end(); I != E; ++I) {
210 if (I != FTy->param_begin())
212 CalcTypeName(*I, TypeStack, OS);
214 if (FTy->isVarArg()) {
215 if (FTy->getNumParams()) OS << ", ";
221 case Type::StructTyID: {
222 const StructType *STy = cast<StructType>(Ty);
226 for (StructType::element_iterator I = STy->element_begin(),
227 E = STy->element_end(); I != E; ++I) {
228 CalcTypeName(*I, TypeStack, OS);
229 if (next(I) != STy->element_end())
238 case Type::PointerTyID: {
239 const PointerType *PTy = cast<PointerType>(Ty);
240 CalcTypeName(PTy->getElementType(), TypeStack, OS);
241 if (unsigned AddressSpace = PTy->getAddressSpace())
242 OS << " addrspace(" << AddressSpace << ')';
246 case Type::ArrayTyID: {
247 const ArrayType *ATy = cast<ArrayType>(Ty);
248 OS << '[' << ATy->getNumElements() << " x ";
249 CalcTypeName(ATy->getElementType(), TypeStack, OS);
253 case Type::VectorTyID: {
254 const VectorType *PTy = cast<VectorType>(Ty);
255 OS << "<" << PTy->getNumElements() << " x ";
256 CalcTypeName(PTy->getElementType(), TypeStack, OS);
260 case Type::OpaqueTyID:
264 OS << "<unrecognized-type>";
268 TypeStack.pop_back(); // Remove self from stack.
271 /// printTypeInt - The internal guts of printing out a type that has a
272 /// potentially named portion.
274 void TypePrinting::print(const Type *Ty, raw_ostream &OS,
275 bool IgnoreTopLevelName) {
276 // Check to see if the type is named.
277 DenseMap<const Type*, std::string> &TM = getTypeNamesMap(TypeNames);
278 if (!IgnoreTopLevelName) {
279 DenseMap<const Type*, std::string>::iterator I = TM.find(Ty);
286 // Otherwise we have a type that has not been named but is a derived type.
287 // Carefully recurse the type hierarchy to print out any contained symbolic
289 SmallVector<const Type *, 16> TypeStack;
290 std::string TypeName;
292 raw_string_ostream TypeOS(TypeName);
293 CalcTypeName(Ty, TypeStack, TypeOS, IgnoreTopLevelName);
296 // Cache type name for later use.
297 if (!IgnoreTopLevelName)
298 TM.insert(std::make_pair(Ty, TypeOS.str()));
303 // To avoid walking constant expressions multiple times and other IR
304 // objects, we keep several helper maps.
305 DenseSet<const Value*> VisitedConstants;
306 DenseSet<const Type*> VisitedTypes;
309 std::vector<const Type*> &NumberedTypes;
311 TypeFinder(TypePrinting &tp, std::vector<const Type*> &numberedTypes)
312 : TP(tp), NumberedTypes(numberedTypes) {}
314 void Run(const Module &M) {
315 // Get types from the type symbol table. This gets opaque types referened
316 // only through derived named types.
317 const TypeSymbolTable &ST = M.getTypeSymbolTable();
318 for (TypeSymbolTable::const_iterator TI = ST.begin(), E = ST.end();
320 IncorporateType(TI->second);
322 // Get types from global variables.
323 for (Module::const_global_iterator I = M.global_begin(),
324 E = M.global_end(); I != E; ++I) {
325 IncorporateType(I->getType());
326 if (I->hasInitializer())
327 IncorporateValue(I->getInitializer());
330 // Get types from aliases.
331 for (Module::const_alias_iterator I = M.alias_begin(),
332 E = M.alias_end(); I != E; ++I) {
333 IncorporateType(I->getType());
334 IncorporateValue(I->getAliasee());
337 // Get types from functions.
338 for (Module::const_iterator FI = M.begin(), E = M.end(); FI != E; ++FI) {
339 IncorporateType(FI->getType());
341 for (Function::const_iterator BB = FI->begin(), E = FI->end();
343 for (BasicBlock::const_iterator II = BB->begin(),
344 E = BB->end(); II != E; ++II) {
345 const Instruction &I = *II;
346 // Incorporate the type of the instruction and all its operands.
347 IncorporateType(I.getType());
348 for (User::const_op_iterator OI = I.op_begin(), OE = I.op_end();
350 IncorporateValue(*OI);
356 void IncorporateType(const Type *Ty) {
357 // Check to see if we're already visited this type.
358 if (!VisitedTypes.insert(Ty).second)
361 // If this is a structure or opaque type, add a name for the type.
362 if (((isa<StructType>(Ty) && cast<StructType>(Ty)->getNumElements())
363 || isa<OpaqueType>(Ty)) && !TP.hasTypeName(Ty)) {
364 TP.addTypeName(Ty, "%"+utostr(unsigned(NumberedTypes.size())));
365 NumberedTypes.push_back(Ty);
368 // Recursively walk all contained types.
369 for (Type::subtype_iterator I = Ty->subtype_begin(),
370 E = Ty->subtype_end(); I != E; ++I)
374 /// IncorporateValue - This method is used to walk operand lists finding
375 /// types hiding in constant expressions and other operands that won't be
376 /// walked in other ways. GlobalValues, basic blocks, instructions, and
377 /// inst operands are all explicitly enumerated.
378 void IncorporateValue(const Value *V) {
379 if (V == 0 || !isa<Constant>(V) || isa<GlobalValue>(V)) return;
382 if (!VisitedConstants.insert(V).second)
386 IncorporateType(V->getType());
388 // Look in operands for types.
389 const Constant *C = cast<Constant>(V);
390 for (Constant::const_op_iterator I = C->op_begin(),
391 E = C->op_end(); I != E;++I)
392 IncorporateValue(*I);
395 } // end anonymous namespace
398 /// AddModuleTypesToPrinter - Add all of the symbolic type names for types in
399 /// the specified module to the TypePrinter and all numbered types to it and the
400 /// NumberedTypes table.
401 static void AddModuleTypesToPrinter(TypePrinting &TP,
402 std::vector<const Type*> &NumberedTypes,
406 // If the module has a symbol table, take all global types and stuff their
407 // names into the TypeNames map.
408 const TypeSymbolTable &ST = M->getTypeSymbolTable();
409 for (TypeSymbolTable::const_iterator TI = ST.begin(), E = ST.end();
411 const Type *Ty = cast<Type>(TI->second);
413 // As a heuristic, don't insert pointer to primitive types, because
414 // they are used too often to have a single useful name.
415 if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
416 const Type *PETy = PTy->getElementType();
417 if ((PETy->isPrimitiveType() || PETy->isInteger()) &&
418 !isa<OpaqueType>(PETy))
422 // Likewise don't insert primitives either.
423 if (Ty->isInteger() || Ty->isPrimitiveType())
426 // Get the name as a string and insert it into TypeNames.
428 raw_string_ostream NameROS(NameStr);
429 formatted_raw_ostream NameOS(NameROS);
430 PrintLLVMName(NameOS, TI->first, LocalPrefix);
432 TP.addTypeName(Ty, NameStr);
435 // Walk the entire module to find references to unnamed structure and opaque
436 // types. This is required for correctness by opaque types (because multiple
437 // uses of an unnamed opaque type needs to be referred to by the same ID) and
438 // it shrinks complex recursive structure types substantially in some cases.
439 TypeFinder(TP, NumberedTypes).Run(*M);
443 /// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
444 /// type, iff there is an entry in the modules symbol table for the specified
445 /// type or one of it's component types.
447 void llvm::WriteTypeSymbolic(raw_ostream &OS, const Type *Ty, const Module *M) {
448 TypePrinting Printer;
449 std::vector<const Type*> NumberedTypes;
450 AddModuleTypesToPrinter(Printer, NumberedTypes, M);
451 Printer.print(Ty, OS);
454 //===----------------------------------------------------------------------===//
455 // SlotTracker Class: Enumerate slot numbers for unnamed values
456 //===----------------------------------------------------------------------===//
460 /// This class provides computation of slot numbers for LLVM Assembly writing.
464 /// ValueMap - A mapping of Values to slot numbers.
465 typedef DenseMap<const Value*, unsigned> ValueMap;
468 /// TheModule - The module for which we are holding slot numbers.
469 const Module* TheModule;
471 /// TheFunction - The function for which we are holding slot numbers.
472 const Function* TheFunction;
473 bool FunctionProcessed;
475 /// TheMDNode - The MDNode for which we are holding slot numbers.
476 const MDNode *TheMDNode;
478 /// TheNamedMDNode - The MDNode for which we are holding slot numbers.
479 const NamedMDNode *TheNamedMDNode;
481 /// mMap - The TypePlanes map for the module level data.
485 /// fMap - The TypePlanes map for the function level data.
489 /// mdnMap - Map for MDNodes.
493 /// Construct from a module
494 explicit SlotTracker(const Module *M);
495 /// Construct from a function, starting out in incorp state.
496 explicit SlotTracker(const Function *F);
497 /// Construct from a mdnode.
498 explicit SlotTracker(const MDNode *N);
499 /// Construct from a named mdnode.
500 explicit SlotTracker(const NamedMDNode *N);
502 /// Return the slot number of the specified value in it's type
503 /// plane. If something is not in the SlotTracker, return -1.
504 int getLocalSlot(const Value *V);
505 int getGlobalSlot(const GlobalValue *V);
506 int getMetadataSlot(const MDNode *N);
508 /// If you'd like to deal with a function instead of just a module, use
509 /// this method to get its data into the SlotTracker.
510 void incorporateFunction(const Function *F) {
512 FunctionProcessed = false;
515 /// After calling incorporateFunction, use this method to remove the
516 /// most recently incorporated function from the SlotTracker. This
517 /// will reset the state of the machine back to just the module contents.
518 void purgeFunction();
520 /// MDNode map iterators.
521 ValueMap::iterator mdnBegin() { return mdnMap.begin(); }
522 ValueMap::iterator mdnEnd() { return mdnMap.end(); }
523 unsigned mdnSize() const { return mdnMap.size(); }
524 bool mdnEmpty() const { return mdnMap.empty(); }
526 /// This function does the actual initialization.
527 inline void initialize();
529 // Implementation Details
531 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
532 void CreateModuleSlot(const GlobalValue *V);
534 /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
535 void CreateMetadataSlot(const MDNode *N);
537 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
538 void CreateFunctionSlot(const Value *V);
540 /// Add all of the module level global variables (and their initializers)
541 /// and function declarations, but not the contents of those functions.
542 void processModule();
544 /// Add all of the functions arguments, basic blocks, and instructions.
545 void processFunction();
547 /// Add all MDNode operands.
548 void processMDNode();
550 /// Add all MDNode operands.
551 void processNamedMDNode();
553 SlotTracker(const SlotTracker &); // DO NOT IMPLEMENT
554 void operator=(const SlotTracker &); // DO NOT IMPLEMENT
557 } // end anonymous namespace
560 static SlotTracker *createSlotTracker(const Value *V) {
561 if (const Argument *FA = dyn_cast<Argument>(V))
562 return new SlotTracker(FA->getParent());
564 if (const Instruction *I = dyn_cast<Instruction>(V))
565 return new SlotTracker(I->getParent()->getParent());
567 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
568 return new SlotTracker(BB->getParent());
570 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
571 return new SlotTracker(GV->getParent());
573 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
574 return new SlotTracker(GA->getParent());
576 if (const Function *Func = dyn_cast<Function>(V))
577 return new SlotTracker(Func);
583 #define ST_DEBUG(X) errs() << X
588 // Module level constructor. Causes the contents of the Module (sans functions)
589 // to be added to the slot table.
590 SlotTracker::SlotTracker(const Module *M)
591 : TheModule(M), TheFunction(0), FunctionProcessed(false), TheMDNode(0),
592 TheNamedMDNode(0), mNext(0), fNext(0), mdnNext(0) {
595 // Function level constructor. Causes the contents of the Module and the one
596 // function provided to be added to the slot table.
597 SlotTracker::SlotTracker(const Function *F)
598 : TheModule(F ? F->getParent() : 0), TheFunction(F), FunctionProcessed(false),
599 TheMDNode(0), TheNamedMDNode(0), mNext(0), fNext(0), mdnNext(0) {
602 // Constructor to handle single MDNode.
603 SlotTracker::SlotTracker(const MDNode *C)
604 : TheModule(0), TheFunction(0), FunctionProcessed(false), TheMDNode(C),
605 TheNamedMDNode(0), mNext(0), fNext(0), mdnNext(0) {
608 // Constructor to handle single NamedMDNode.
609 SlotTracker::SlotTracker(const NamedMDNode *N)
610 : TheModule(0), TheFunction(0), FunctionProcessed(false), TheMDNode(0),
611 TheNamedMDNode(N), mNext(0), fNext(0), mdnNext(0) {
614 inline void SlotTracker::initialize() {
617 TheModule = 0; ///< Prevent re-processing next time we're called.
620 if (TheFunction && !FunctionProcessed)
627 processNamedMDNode();
630 // Iterate through all the global variables, functions, and global
631 // variable initializers and create slots for them.
632 void SlotTracker::processModule() {
633 ST_DEBUG("begin processModule!\n");
635 // Add all of the unnamed global variables to the value table.
636 for (Module::const_global_iterator I = TheModule->global_begin(),
637 E = TheModule->global_end(); I != E; ++I) {
640 if (I->hasInitializer()) {
641 if (MDNode *N = dyn_cast<MDNode>(I->getInitializer()))
642 CreateMetadataSlot(N);
646 // Add metadata used by named metadata.
647 for (Module::const_named_metadata_iterator
648 I = TheModule->named_metadata_begin(),
649 E = TheModule->named_metadata_end(); I != E; ++I) {
650 const NamedMDNode *NMD = I;
651 for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
652 MDNode *MD = dyn_cast_or_null<MDNode>(NMD->getElement(i));
654 CreateMetadataSlot(MD);
658 // Add all the unnamed functions to the table.
659 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
664 ST_DEBUG("end processModule!\n");
667 // Process the arguments, basic blocks, and instructions of a function.
668 void SlotTracker::processFunction() {
669 ST_DEBUG("begin processFunction!\n");
672 // Add all the function arguments with no names.
673 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
674 AE = TheFunction->arg_end(); AI != AE; ++AI)
676 CreateFunctionSlot(AI);
678 ST_DEBUG("Inserting Instructions:\n");
680 SmallVector<std::pair<unsigned, MDNode*>, 2> MDForInst;
682 // Add all of the basic blocks and instructions with no names.
683 for (Function::const_iterator BB = TheFunction->begin(),
684 E = TheFunction->end(); BB != E; ++BB) {
686 CreateFunctionSlot(BB);
688 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
690 if (!I->getType()->isVoidTy() && !I->hasName())
691 CreateFunctionSlot(I);
693 // Intrinsics can directly use metadata.
694 if (isa<IntrinsicInst>(I))
695 for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
696 if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
697 CreateMetadataSlot(N);
699 // Process metadata attached with this instruction.
701 I->getAllMetadata(MDForInst);
702 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
703 CreateMetadataSlot(MDForInst[i].second);
707 FunctionProcessed = true;
709 ST_DEBUG("end processFunction!\n");
712 /// processMDNode - Process TheMDNode.
713 void SlotTracker::processMDNode() {
714 ST_DEBUG("begin processMDNode!\n");
716 CreateMetadataSlot(TheMDNode);
718 ST_DEBUG("end processMDNode!\n");
721 /// processNamedMDNode - Process TheNamedMDNode.
722 void SlotTracker::processNamedMDNode() {
723 ST_DEBUG("begin processNamedMDNode!\n");
725 for (unsigned i = 0, e = TheNamedMDNode->getNumElements(); i != e; ++i) {
726 MDNode *MD = dyn_cast_or_null<MDNode>(TheNamedMDNode->getElement(i));
728 CreateMetadataSlot(MD);
731 ST_DEBUG("end processNamedMDNode!\n");
734 /// Clean up after incorporating a function. This is the only way to get out of
735 /// the function incorporation state that affects get*Slot/Create*Slot. Function
736 /// incorporation state is indicated by TheFunction != 0.
737 void SlotTracker::purgeFunction() {
738 ST_DEBUG("begin purgeFunction!\n");
739 fMap.clear(); // Simply discard the function level map
741 FunctionProcessed = false;
742 ST_DEBUG("end purgeFunction!\n");
745 /// getGlobalSlot - Get the slot number of a global value.
746 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
747 // Check for uninitialized state and do lazy initialization.
750 // Find the type plane in the module map
751 ValueMap::iterator MI = mMap.find(V);
752 return MI == mMap.end() ? -1 : (int)MI->second;
755 /// getGlobalSlot - Get the slot number of a MDNode.
756 int SlotTracker::getMetadataSlot(const MDNode *N) {
757 // Check for uninitialized state and do lazy initialization.
760 // Find the type plane in the module map
761 ValueMap::iterator MI = mdnMap.find(N);
762 return MI == mdnMap.end() ? -1 : (int)MI->second;
766 /// getLocalSlot - Get the slot number for a value that is local to a function.
767 int SlotTracker::getLocalSlot(const Value *V) {
768 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
770 // Check for uninitialized state and do lazy initialization.
773 ValueMap::iterator FI = fMap.find(V);
774 return FI == fMap.end() ? -1 : (int)FI->second;
778 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
779 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
780 assert(V && "Can't insert a null Value into SlotTracker!");
781 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
782 assert(!V->hasName() && "Doesn't need a slot!");
784 unsigned DestSlot = mNext++;
787 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
789 // G = Global, F = Function, A = Alias, o = other
790 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
791 (isa<Function>(V) ? 'F' :
792 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
795 /// CreateSlot - Create a new slot for the specified value if it has no name.
796 void SlotTracker::CreateFunctionSlot(const Value *V) {
797 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
799 unsigned DestSlot = fNext++;
802 // G = Global, F = Function, o = other
803 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
804 DestSlot << " [o]\n");
807 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
808 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
809 assert(N && "Can't insert a null Value into SlotTracker!");
811 // Don't insert if N is a function-local metadata.
812 if (N->isFunctionLocal())
815 ValueMap::iterator I = mdnMap.find(N);
816 if (I != mdnMap.end())
819 unsigned DestSlot = mdnNext++;
820 mdnMap[N] = DestSlot;
822 for (unsigned i = 0, e = N->getNumElements(); i != e; ++i) {
823 const Value *TV = N->getElement(i);
825 if (const MDNode *N2 = dyn_cast<MDNode>(TV))
826 CreateMetadataSlot(N2);
830 //===----------------------------------------------------------------------===//
831 // AsmWriter Implementation
832 //===----------------------------------------------------------------------===//
834 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
835 TypePrinting *TypePrinter,
836 SlotTracker *Machine);
840 static const char *getPredicateText(unsigned predicate) {
841 const char * pred = "unknown";
843 case FCmpInst::FCMP_FALSE: pred = "false"; break;
844 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
845 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
846 case FCmpInst::FCMP_OGE: pred = "oge"; break;
847 case FCmpInst::FCMP_OLT: pred = "olt"; break;
848 case FCmpInst::FCMP_OLE: pred = "ole"; break;
849 case FCmpInst::FCMP_ONE: pred = "one"; break;
850 case FCmpInst::FCMP_ORD: pred = "ord"; break;
851 case FCmpInst::FCMP_UNO: pred = "uno"; break;
852 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
853 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
854 case FCmpInst::FCMP_UGE: pred = "uge"; break;
855 case FCmpInst::FCMP_ULT: pred = "ult"; break;
856 case FCmpInst::FCMP_ULE: pred = "ule"; break;
857 case FCmpInst::FCMP_UNE: pred = "une"; break;
858 case FCmpInst::FCMP_TRUE: pred = "true"; break;
859 case ICmpInst::ICMP_EQ: pred = "eq"; break;
860 case ICmpInst::ICMP_NE: pred = "ne"; break;
861 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
862 case ICmpInst::ICMP_SGE: pred = "sge"; break;
863 case ICmpInst::ICMP_SLT: pred = "slt"; break;
864 case ICmpInst::ICMP_SLE: pred = "sle"; break;
865 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
866 case ICmpInst::ICMP_UGE: pred = "uge"; break;
867 case ICmpInst::ICMP_ULT: pred = "ult"; break;
868 case ICmpInst::ICMP_ULE: pred = "ule"; break;
873 static void WriteMDNodeComment(const MDNode *Node,
874 formatted_raw_ostream &Out) {
875 if (Node->getNumElements() < 1)
877 ConstantInt *CI = dyn_cast_or_null<ConstantInt>(Node->getElement(0));
879 unsigned Val = CI->getZExtValue();
880 unsigned Tag = Val & ~LLVMDebugVersionMask;
881 if (Val < LLVMDebugVersion)
885 if (Tag == dwarf::DW_TAG_auto_variable)
886 Out << "; [ DW_TAG_auto_variable ]";
887 else if (Tag == dwarf::DW_TAG_arg_variable)
888 Out << "; [ DW_TAG_arg_variable ]";
889 else if (Tag == dwarf::DW_TAG_return_variable)
890 Out << "; [ DW_TAG_return_variable ]";
891 else if (Tag == dwarf::DW_TAG_vector_type)
892 Out << "; [ DW_TAG_vector_type ]";
893 else if (Tag == dwarf::DW_TAG_user_base)
894 Out << "; [ DW_TAG_user_base ]";
896 Out << "; [ " << dwarf::TagString(Tag) << " ]";
899 static void WriteMDNodes(formatted_raw_ostream &Out, TypePrinting &TypePrinter,
900 SlotTracker &Machine) {
901 SmallVector<const MDNode *, 16> Nodes;
902 Nodes.resize(Machine.mdnSize());
903 for (SlotTracker::ValueMap::iterator I =
904 Machine.mdnBegin(), E = Machine.mdnEnd(); I != E; ++I)
905 Nodes[I->second] = cast<MDNode>(I->first);
907 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
908 Out << '!' << i << " = metadata ";
909 const MDNode *Node = Nodes[i];
911 for (unsigned mi = 0, me = Node->getNumElements(); mi != me; ++mi) {
912 const Value *V = Node->getElement(mi);
915 else if (const MDNode *N = dyn_cast<MDNode>(V)) {
917 Out << '!' << Machine.getMetadataSlot(N);
920 TypePrinter.print(V->getType(), Out);
922 WriteAsOperandInternal(Out, Node->getElement(mi),
923 &TypePrinter, &Machine);
930 WriteMDNodeComment(Node, Out);
935 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
936 if (const OverflowingBinaryOperator *OBO =
937 dyn_cast<OverflowingBinaryOperator>(U)) {
938 if (OBO->hasNoUnsignedWrap())
940 if (OBO->hasNoSignedWrap())
942 } else if (const SDivOperator *Div = dyn_cast<SDivOperator>(U)) {
945 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
946 if (GEP->isInBounds())
951 static void WriteConstantInt(raw_ostream &Out, const Constant *CV,
952 TypePrinting &TypePrinter, SlotTracker *Machine) {
953 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
954 if (CI->getType() == Type::getInt1Ty(CV->getContext())) {
955 Out << (CI->getZExtValue() ? "true" : "false");
958 Out << CI->getValue();
962 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
963 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble ||
964 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle) {
965 // We would like to output the FP constant value in exponential notation,
966 // but we cannot do this if doing so will lose precision. Check here to
967 // make sure that we only output it in exponential format if we can parse
968 // the value back and get the same value.
971 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
972 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
973 CFP->getValueAPF().convertToFloat();
974 std::string StrVal = ftostr(CFP->getValueAPF());
976 // Check to make sure that the stringized number is not some string like
977 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
978 // that the string matches the "[-+]?[0-9]" regex.
980 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
981 ((StrVal[0] == '-' || StrVal[0] == '+') &&
982 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
983 // Reparse stringized version!
984 if (atof(StrVal.c_str()) == Val) {
989 // Otherwise we could not reparse it to exactly the same value, so we must
990 // output the string in hexadecimal format! Note that loading and storing
991 // floating point types changes the bits of NaNs on some hosts, notably
992 // x86, so we must not use these types.
993 assert(sizeof(double) == sizeof(uint64_t) &&
994 "assuming that double is 64 bits!");
996 APFloat apf = CFP->getValueAPF();
997 // Floats are represented in ASCII IR as double, convert.
999 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
1002 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
1007 // Some form of long double. These appear as a magic letter identifying
1008 // the type, then a fixed number of hex digits.
1010 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
1012 // api needed to prevent premature destruction
1013 APInt api = CFP->getValueAPF().bitcastToAPInt();
1014 const uint64_t* p = api.getRawData();
1015 uint64_t word = p[1];
1017 int width = api.getBitWidth();
1018 for (int j=0; j<width; j+=4, shiftcount-=4) {
1019 unsigned int nibble = (word>>shiftcount) & 15;
1021 Out << (unsigned char)(nibble + '0');
1023 Out << (unsigned char)(nibble - 10 + 'A');
1024 if (shiftcount == 0 && j+4 < width) {
1028 shiftcount = width-j-4;
1032 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad)
1034 else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
1037 llvm_unreachable("Unsupported floating point type");
1038 // api needed to prevent premature destruction
1039 APInt api = CFP->getValueAPF().bitcastToAPInt();
1040 const uint64_t* p = api.getRawData();
1043 int width = api.getBitWidth();
1044 for (int j=0; j<width; j+=4, shiftcount-=4) {
1045 unsigned int nibble = (word>>shiftcount) & 15;
1047 Out << (unsigned char)(nibble + '0');
1049 Out << (unsigned char)(nibble - 10 + 'A');
1050 if (shiftcount == 0 && j+4 < width) {
1054 shiftcount = width-j-4;
1060 if (isa<ConstantAggregateZero>(CV)) {
1061 Out << "zeroinitializer";
1065 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
1066 Out << "blockaddress(";
1067 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine);
1069 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine);
1074 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
1075 // As a special case, print the array as a string if it is an array of
1076 // i8 with ConstantInt values.
1078 const Type *ETy = CA->getType()->getElementType();
1079 if (CA->isString()) {
1081 PrintEscapedString(CA->getAsString(), Out);
1083 } else { // Cannot output in string format...
1085 if (CA->getNumOperands()) {
1086 TypePrinter.print(ETy, Out);
1088 WriteAsOperandInternal(Out, CA->getOperand(0),
1089 &TypePrinter, Machine);
1090 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
1092 TypePrinter.print(ETy, Out);
1094 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine);
1102 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
1103 if (CS->getType()->isPacked())
1106 unsigned N = CS->getNumOperands();
1109 TypePrinter.print(CS->getOperand(0)->getType(), Out);
1112 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine);
1114 for (unsigned i = 1; i < N; i++) {
1116 TypePrinter.print(CS->getOperand(i)->getType(), Out);
1119 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine);
1125 if (CS->getType()->isPacked())
1130 if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
1131 const Type *ETy = CP->getType()->getElementType();
1132 assert(CP->getNumOperands() > 0 &&
1133 "Number of operands for a PackedConst must be > 0");
1135 TypePrinter.print(ETy, Out);
1137 WriteAsOperandInternal(Out, CP->getOperand(0), &TypePrinter, Machine);
1138 for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
1140 TypePrinter.print(ETy, Out);
1142 WriteAsOperandInternal(Out, CP->getOperand(i), &TypePrinter, Machine);
1148 if (isa<ConstantPointerNull>(CV)) {
1153 if (isa<UndefValue>(CV)) {
1158 if (const MDNode *Node = dyn_cast<MDNode>(CV)) {
1159 Out << "!" << Machine->getMetadataSlot(Node);
1163 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1164 Out << CE->getOpcodeName();
1165 WriteOptimizationInfo(Out, CE);
1166 if (CE->isCompare())
1167 Out << ' ' << getPredicateText(CE->getPredicate());
1170 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1171 TypePrinter.print((*OI)->getType(), Out);
1173 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine);
1174 if (OI+1 != CE->op_end())
1178 if (CE->hasIndices()) {
1179 const SmallVector<unsigned, 4> &Indices = CE->getIndices();
1180 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1181 Out << ", " << Indices[i];
1186 TypePrinter.print(CE->getType(), Out);
1193 Out << "<placeholder or erroneous Constant>";
1197 /// WriteAsOperand - Write the name of the specified value out to the specified
1198 /// ostream. This can be useful when you just want to print int %reg126, not
1199 /// the whole instruction that generated it.
1201 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1202 TypePrinting *TypePrinter,
1203 SlotTracker *Machine) {
1205 PrintLLVMName(Out, V);
1209 const Constant *CV = dyn_cast<Constant>(V);
1210 if (CV && !isa<GlobalValue>(CV)) {
1211 assert(TypePrinter && "Constants require TypePrinting!");
1212 WriteConstantInt(Out, CV, *TypePrinter, Machine);
1216 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1218 if (IA->hasSideEffects())
1219 Out << "sideeffect ";
1220 if (IA->isAlignStack())
1221 Out << "alignstack ";
1223 PrintEscapedString(IA->getAsmString(), Out);
1225 PrintEscapedString(IA->getConstraintString(), Out);
1230 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1231 if (N->isFunctionLocal()) {
1232 // Print metadata inline, not via slot reference number.
1234 for (unsigned mi = 0, me = N->getNumElements(); mi != me; ++mi) {
1235 const Value *Val = N->getElement(mi);
1239 TypePrinter->print(N->getElement(0)->getType(), Out);
1241 WriteAsOperandInternal(Out, N->getElement(0), TypePrinter, Machine);
1250 Out << '!' << Machine->getMetadataSlot(N);
1254 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1256 PrintEscapedString(MDS->getString(), Out);
1261 if (V->getValueID() == Value::PseudoSourceValueVal ||
1262 V->getValueID() == Value::FixedStackPseudoSourceValueVal) {
1270 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1271 Slot = Machine->getGlobalSlot(GV);
1274 Slot = Machine->getLocalSlot(V);
1277 Machine = createSlotTracker(V);
1279 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1280 Slot = Machine->getGlobalSlot(GV);
1283 Slot = Machine->getLocalSlot(V);
1292 Out << Prefix << Slot;
1297 void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
1298 bool PrintType, const Module *Context) {
1300 // Fast path: Don't construct and populate a TypePrinting object if we
1301 // won't be needing any types printed.
1303 (!isa<Constant>(V) || V->hasName() || isa<GlobalValue>(V))) {
1304 WriteAsOperandInternal(Out, V, 0, 0);
1308 if (Context == 0) Context = getModuleFromVal(V);
1310 TypePrinting TypePrinter;
1311 std::vector<const Type*> NumberedTypes;
1312 AddModuleTypesToPrinter(TypePrinter, NumberedTypes, Context);
1314 TypePrinter.print(V->getType(), Out);
1318 WriteAsOperandInternal(Out, V, &TypePrinter, 0);
1323 class AssemblyWriter {
1324 formatted_raw_ostream &Out;
1325 SlotTracker &Machine;
1326 const Module *TheModule;
1327 TypePrinting TypePrinter;
1328 AssemblyAnnotationWriter *AnnotationWriter;
1329 std::vector<const Type*> NumberedTypes;
1330 SmallVector<StringRef, 8> MDNames;
1333 inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1335 AssemblyAnnotationWriter *AAW)
1336 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
1337 AddModuleTypesToPrinter(TypePrinter, NumberedTypes, M);
1338 // FIXME: Provide MDPrinter
1340 M->getMDKindNames(MDNames);
1343 void write(const Module *M) { printModule(M); }
1345 void write(const GlobalValue *G) {
1346 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(G))
1348 else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(G))
1350 else if (const Function *F = dyn_cast<Function>(G))
1353 llvm_unreachable("Unknown global");
1356 void write(const BasicBlock *BB) { printBasicBlock(BB); }
1357 void write(const Instruction *I) { printInstruction(*I); }
1359 void writeOperand(const Value *Op, bool PrintType);
1360 void writeParamOperand(const Value *Operand, Attributes Attrs);
1363 void printModule(const Module *M);
1364 void printTypeSymbolTable(const TypeSymbolTable &ST);
1365 void printGlobal(const GlobalVariable *GV);
1366 void printAlias(const GlobalAlias *GV);
1367 void printFunction(const Function *F);
1368 void printArgument(const Argument *FA, Attributes Attrs);
1369 void printBasicBlock(const BasicBlock *BB);
1370 void printInstruction(const Instruction &I);
1372 // printInfoComment - Print a little comment after the instruction indicating
1373 // which slot it occupies.
1374 void printInfoComment(const Value &V);
1376 } // end of anonymous namespace
1379 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1381 Out << "<null operand!>";
1384 TypePrinter.print(Operand->getType(), Out);
1387 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine);
1391 void AssemblyWriter::writeParamOperand(const Value *Operand,
1394 Out << "<null operand!>";
1397 TypePrinter.print(Operand->getType(), Out);
1398 // Print parameter attributes list
1399 if (Attrs != Attribute::None)
1400 Out << ' ' << Attribute::getAsString(Attrs);
1402 // Print the operand
1403 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine);
1407 void AssemblyWriter::printModule(const Module *M) {
1408 if (!M->getModuleIdentifier().empty() &&
1409 // Don't print the ID if it will start a new line (which would
1410 // require a comment char before it).
1411 M->getModuleIdentifier().find('\n') == std::string::npos)
1412 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1414 if (!M->getDataLayout().empty())
1415 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1416 if (!M->getTargetTriple().empty())
1417 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1419 if (!M->getModuleInlineAsm().empty()) {
1420 // Split the string into lines, to make it easier to read the .ll file.
1421 std::string Asm = M->getModuleInlineAsm();
1423 size_t NewLine = Asm.find_first_of('\n', CurPos);
1425 while (NewLine != std::string::npos) {
1426 // We found a newline, print the portion of the asm string from the
1427 // last newline up to this newline.
1428 Out << "module asm \"";
1429 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1433 NewLine = Asm.find_first_of('\n', CurPos);
1435 Out << "module asm \"";
1436 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
1440 // Loop over the dependent libraries and emit them.
1441 Module::lib_iterator LI = M->lib_begin();
1442 Module::lib_iterator LE = M->lib_end();
1445 Out << "deplibs = [ ";
1447 Out << '"' << *LI << '"';
1455 // Loop over the symbol table, emitting all id'd types.
1456 if (!M->getTypeSymbolTable().empty() || !NumberedTypes.empty()) Out << '\n';
1457 printTypeSymbolTable(M->getTypeSymbolTable());
1459 // Output all globals.
1460 if (!M->global_empty()) Out << '\n';
1461 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1465 // Output all aliases.
1466 if (!M->alias_empty()) Out << "\n";
1467 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1471 // Output all of the functions.
1472 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1475 // Output named metadata.
1476 if (!M->named_metadata_empty()) Out << '\n';
1477 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1478 E = M->named_metadata_end(); I != E; ++I) {
1479 const NamedMDNode *NMD = I;
1480 Out << "!" << NMD->getName() << " = !{";
1481 for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
1483 MDNode *MD = dyn_cast_or_null<MDNode>(NMD->getElement(i));
1484 Out << '!' << Machine.getMetadataSlot(MD);
1490 if (!Machine.mdnEmpty()) Out << '\n';
1491 WriteMDNodes(Out, TypePrinter, Machine);
1494 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1495 formatted_raw_ostream &Out) {
1497 case GlobalValue::ExternalLinkage: break;
1498 case GlobalValue::PrivateLinkage: Out << "private "; break;
1499 case GlobalValue::LinkerPrivateLinkage: Out << "linker_private "; break;
1500 case GlobalValue::InternalLinkage: Out << "internal "; break;
1501 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1502 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1503 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1504 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1505 case GlobalValue::CommonLinkage: Out << "common "; break;
1506 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1507 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1508 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1509 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1510 case GlobalValue::AvailableExternallyLinkage:
1511 Out << "available_externally ";
1513 // This is invalid syntax and just a debugging aid.
1514 case GlobalValue::GhostLinkage: Out << "ghost "; break;
1519 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1520 formatted_raw_ostream &Out) {
1522 default: llvm_unreachable("Invalid visibility style!");
1523 case GlobalValue::DefaultVisibility: break;
1524 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1525 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1529 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1530 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine);
1533 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1536 PrintLinkage(GV->getLinkage(), Out);
1537 PrintVisibility(GV->getVisibility(), Out);
1539 if (GV->isThreadLocal()) Out << "thread_local ";
1540 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1541 Out << "addrspace(" << AddressSpace << ") ";
1542 Out << (GV->isConstant() ? "constant " : "global ");
1543 TypePrinter.print(GV->getType()->getElementType(), Out);
1545 if (GV->hasInitializer()) {
1547 writeOperand(GV->getInitializer(), false);
1550 if (GV->hasSection())
1551 Out << ", section \"" << GV->getSection() << '"';
1552 if (GV->getAlignment())
1553 Out << ", align " << GV->getAlignment();
1555 printInfoComment(*GV);
1559 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1560 // Don't crash when dumping partially built GA
1562 Out << "<<nameless>> = ";
1564 PrintLLVMName(Out, GA);
1567 PrintVisibility(GA->getVisibility(), Out);
1571 PrintLinkage(GA->getLinkage(), Out);
1573 const Constant *Aliasee = GA->getAliasee();
1575 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
1576 TypePrinter.print(GV->getType(), Out);
1578 PrintLLVMName(Out, GV);
1579 } else if (const Function *F = dyn_cast<Function>(Aliasee)) {
1580 TypePrinter.print(F->getFunctionType(), Out);
1583 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine);
1584 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(Aliasee)) {
1585 TypePrinter.print(GA->getType(), Out);
1587 PrintLLVMName(Out, GA);
1589 const ConstantExpr *CE = cast<ConstantExpr>(Aliasee);
1590 // The only valid GEP is an all zero GEP.
1591 assert((CE->getOpcode() == Instruction::BitCast ||
1592 CE->getOpcode() == Instruction::GetElementPtr) &&
1593 "Unsupported aliasee");
1594 writeOperand(CE, false);
1597 printInfoComment(*GA);
1601 void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
1602 // Emit all numbered types.
1603 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1604 Out << '%' << i << " = type ";
1606 // Make sure we print out at least one level of the type structure, so
1607 // that we do not get %2 = type %2
1608 TypePrinter.printAtLeastOneLevel(NumberedTypes[i], Out);
1612 // Print the named types.
1613 for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
1615 PrintLLVMName(Out, TI->first, LocalPrefix);
1618 // Make sure we print out at least one level of the type structure, so
1619 // that we do not get %FILE = type %FILE
1620 TypePrinter.printAtLeastOneLevel(TI->second, Out);
1625 /// printFunction - Print all aspects of a function.
1627 void AssemblyWriter::printFunction(const Function *F) {
1628 // Print out the return type and name.
1631 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1633 if (F->isDeclaration())
1638 PrintLinkage(F->getLinkage(), Out);
1639 PrintVisibility(F->getVisibility(), Out);
1641 // Print the calling convention.
1642 switch (F->getCallingConv()) {
1643 case CallingConv::C: break; // default
1644 case CallingConv::Fast: Out << "fastcc "; break;
1645 case CallingConv::Cold: Out << "coldcc "; break;
1646 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1647 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1648 case CallingConv::ARM_APCS: Out << "arm_apcscc "; break;
1649 case CallingConv::ARM_AAPCS: Out << "arm_aapcscc "; break;
1650 case CallingConv::ARM_AAPCS_VFP:Out << "arm_aapcs_vfpcc "; break;
1651 case CallingConv::MSP430_INTR: Out << "msp430_intrcc "; break;
1652 default: Out << "cc" << F->getCallingConv() << " "; break;
1655 const FunctionType *FT = F->getFunctionType();
1656 const AttrListPtr &Attrs = F->getAttributes();
1657 Attributes RetAttrs = Attrs.getRetAttributes();
1658 if (RetAttrs != Attribute::None)
1659 Out << Attribute::getAsString(Attrs.getRetAttributes()) << ' ';
1660 TypePrinter.print(F->getReturnType(), Out);
1662 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine);
1664 Machine.incorporateFunction(F);
1666 // Loop over the arguments, printing them...
1669 if (!F->isDeclaration()) {
1670 // If this isn't a declaration, print the argument names as well.
1671 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1673 // Insert commas as we go... the first arg doesn't get a comma
1674 if (I != F->arg_begin()) Out << ", ";
1675 printArgument(I, Attrs.getParamAttributes(Idx));
1679 // Otherwise, print the types from the function type.
1680 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1681 // Insert commas as we go... the first arg doesn't get a comma
1685 TypePrinter.print(FT->getParamType(i), Out);
1687 Attributes ArgAttrs = Attrs.getParamAttributes(i+1);
1688 if (ArgAttrs != Attribute::None)
1689 Out << ' ' << Attribute::getAsString(ArgAttrs);
1693 // Finish printing arguments...
1694 if (FT->isVarArg()) {
1695 if (FT->getNumParams()) Out << ", ";
1696 Out << "..."; // Output varargs portion of signature!
1699 Attributes FnAttrs = Attrs.getFnAttributes();
1700 if (FnAttrs != Attribute::None)
1701 Out << ' ' << Attribute::getAsString(Attrs.getFnAttributes());
1702 if (F->hasSection())
1703 Out << " section \"" << F->getSection() << '"';
1704 if (F->getAlignment())
1705 Out << " align " << F->getAlignment();
1707 Out << " gc \"" << F->getGC() << '"';
1708 if (F->isDeclaration()) {
1713 // Output all of its basic blocks... for the function
1714 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1720 Machine.purgeFunction();
1723 /// printArgument - This member is called for every argument that is passed into
1724 /// the function. Simply print it out
1726 void AssemblyWriter::printArgument(const Argument *Arg,
1729 TypePrinter.print(Arg->getType(), Out);
1731 // Output parameter attributes list
1732 if (Attrs != Attribute::None)
1733 Out << ' ' << Attribute::getAsString(Attrs);
1735 // Output name, if available...
1736 if (Arg->hasName()) {
1738 PrintLLVMName(Out, Arg);
1742 /// printBasicBlock - This member is called for each basic block in a method.
1744 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1745 if (BB->hasName()) { // Print out the label if it exists...
1747 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1749 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1750 Out << "\n; <label>:";
1751 int Slot = Machine.getLocalSlot(BB);
1758 if (BB->getParent() == 0) {
1759 Out.PadToColumn(50);
1760 Out << "; Error: Block without parent!";
1761 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1762 // Output predecessors for the block...
1763 Out.PadToColumn(50);
1765 pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
1768 Out << " No predecessors!";
1771 writeOperand(*PI, false);
1772 for (++PI; PI != PE; ++PI) {
1774 writeOperand(*PI, false);
1781 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1783 // Output all of the instructions in the basic block...
1784 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1785 printInstruction(*I);
1789 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1793 /// printInfoComment - Print a little comment after the instruction indicating
1794 /// which slot it occupies.
1796 void AssemblyWriter::printInfoComment(const Value &V) {
1797 if (V.getType()->isVoidTy()) return;
1799 Out.PadToColumn(50);
1801 TypePrinter.print(V.getType(), Out);
1802 Out << "> [#uses=" << V.getNumUses() << ']'; // Output # uses
1805 // This member is called for each Instruction in a function..
1806 void AssemblyWriter::printInstruction(const Instruction &I) {
1807 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1809 // Print out indentation for an instruction.
1812 // Print out name if it exists...
1814 PrintLLVMName(Out, &I);
1816 } else if (!I.getType()->isVoidTy()) {
1817 // Print out the def slot taken.
1818 int SlotNum = Machine.getLocalSlot(&I);
1820 Out << "<badref> = ";
1822 Out << '%' << SlotNum << " = ";
1825 // If this is a volatile load or store, print out the volatile marker.
1826 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1827 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
1829 } else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
1830 // If this is a call, check if it's a tail call.
1834 // Print out the opcode...
1835 Out << I.getOpcodeName();
1837 // Print out optimization information.
1838 WriteOptimizationInfo(Out, &I);
1840 // Print out the compare instruction predicates
1841 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1842 Out << ' ' << getPredicateText(CI->getPredicate());
1844 // Print out the type of the operands...
1845 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1847 // Special case conditional branches to swizzle the condition out to the front
1848 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1849 BranchInst &BI(cast<BranchInst>(I));
1851 writeOperand(BI.getCondition(), true);
1853 writeOperand(BI.getSuccessor(0), true);
1855 writeOperand(BI.getSuccessor(1), true);
1857 } else if (isa<SwitchInst>(I)) {
1858 // Special case switch instruction to get formatting nice and correct.
1860 writeOperand(Operand , true);
1862 writeOperand(I.getOperand(1), true);
1865 for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
1867 writeOperand(I.getOperand(op ), true);
1869 writeOperand(I.getOperand(op+1), true);
1872 } else if (isa<IndirectBrInst>(I)) {
1873 // Special case indirectbr instruction to get formatting nice and correct.
1875 writeOperand(Operand, true);
1878 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1881 writeOperand(I.getOperand(i), true);
1884 } else if (isa<PHINode>(I)) {
1886 TypePrinter.print(I.getType(), Out);
1889 for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
1890 if (op) Out << ", ";
1892 writeOperand(I.getOperand(op ), false); Out << ", ";
1893 writeOperand(I.getOperand(op+1), false); Out << " ]";
1895 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1897 writeOperand(I.getOperand(0), true);
1898 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1900 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1902 writeOperand(I.getOperand(0), true); Out << ", ";
1903 writeOperand(I.getOperand(1), true);
1904 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1906 } else if (isa<ReturnInst>(I) && !Operand) {
1908 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1909 // Print the calling convention being used.
1910 switch (CI->getCallingConv()) {
1911 case CallingConv::C: break; // default
1912 case CallingConv::Fast: Out << " fastcc"; break;
1913 case CallingConv::Cold: Out << " coldcc"; break;
1914 case CallingConv::X86_StdCall: Out << " x86_stdcallcc"; break;
1915 case CallingConv::X86_FastCall: Out << " x86_fastcallcc"; break;
1916 case CallingConv::ARM_APCS: Out << " arm_apcscc "; break;
1917 case CallingConv::ARM_AAPCS: Out << " arm_aapcscc "; break;
1918 case CallingConv::ARM_AAPCS_VFP:Out << " arm_aapcs_vfpcc "; break;
1919 case CallingConv::MSP430_INTR: Out << " msp430_intrcc "; break;
1920 default: Out << " cc" << CI->getCallingConv(); break;
1923 const PointerType *PTy = cast<PointerType>(Operand->getType());
1924 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1925 const Type *RetTy = FTy->getReturnType();
1926 const AttrListPtr &PAL = CI->getAttributes();
1928 if (PAL.getRetAttributes() != Attribute::None)
1929 Out << ' ' << Attribute::getAsString(PAL.getRetAttributes());
1931 // If possible, print out the short form of the call instruction. We can
1932 // only do this if the first argument is a pointer to a nonvararg function,
1933 // and if the return type is not a pointer to a function.
1936 if (!FTy->isVarArg() &&
1937 (!isa<PointerType>(RetTy) ||
1938 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1939 TypePrinter.print(RetTy, Out);
1941 writeOperand(Operand, false);
1943 writeOperand(Operand, true);
1946 for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
1949 writeParamOperand(I.getOperand(op), PAL.getParamAttributes(op));
1952 if (PAL.getFnAttributes() != Attribute::None)
1953 Out << ' ' << Attribute::getAsString(PAL.getFnAttributes());
1954 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1955 const PointerType *PTy = cast<PointerType>(Operand->getType());
1956 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1957 const Type *RetTy = FTy->getReturnType();
1958 const AttrListPtr &PAL = II->getAttributes();
1960 // Print the calling convention being used.
1961 switch (II->getCallingConv()) {
1962 case CallingConv::C: break; // default
1963 case CallingConv::Fast: Out << " fastcc"; break;
1964 case CallingConv::Cold: Out << " coldcc"; break;
1965 case CallingConv::X86_StdCall: Out << " x86_stdcallcc"; break;
1966 case CallingConv::X86_FastCall: Out << " x86_fastcallcc"; break;
1967 case CallingConv::ARM_APCS: Out << " arm_apcscc "; break;
1968 case CallingConv::ARM_AAPCS: Out << " arm_aapcscc "; break;
1969 case CallingConv::ARM_AAPCS_VFP:Out << " arm_aapcs_vfpcc "; break;
1970 case CallingConv::MSP430_INTR: Out << " msp430_intrcc "; break;
1971 default: Out << " cc" << II->getCallingConv(); break;
1974 if (PAL.getRetAttributes() != Attribute::None)
1975 Out << ' ' << Attribute::getAsString(PAL.getRetAttributes());
1977 // If possible, print out the short form of the invoke instruction. We can
1978 // only do this if the first argument is a pointer to a nonvararg function,
1979 // and if the return type is not a pointer to a function.
1982 if (!FTy->isVarArg() &&
1983 (!isa<PointerType>(RetTy) ||
1984 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1985 TypePrinter.print(RetTy, Out);
1987 writeOperand(Operand, false);
1989 writeOperand(Operand, true);
1992 for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
1995 writeParamOperand(I.getOperand(op), PAL.getParamAttributes(op-2));
1999 if (PAL.getFnAttributes() != Attribute::None)
2000 Out << ' ' << Attribute::getAsString(PAL.getFnAttributes());
2003 writeOperand(II->getNormalDest(), true);
2005 writeOperand(II->getUnwindDest(), true);
2007 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
2009 TypePrinter.print(AI->getType()->getElementType(), Out);
2010 if (!AI->getArraySize() || AI->isArrayAllocation()) {
2012 writeOperand(AI->getArraySize(), true);
2014 if (AI->getAlignment()) {
2015 Out << ", align " << AI->getAlignment();
2017 } else if (isa<CastInst>(I)) {
2020 writeOperand(Operand, true); // Work with broken code
2023 TypePrinter.print(I.getType(), Out);
2024 } else if (isa<VAArgInst>(I)) {
2027 writeOperand(Operand, true); // Work with broken code
2030 TypePrinter.print(I.getType(), Out);
2031 } else if (Operand) { // Print the normal way.
2033 // PrintAllTypes - Instructions who have operands of all the same type
2034 // omit the type from all but the first operand. If the instruction has
2035 // different type operands (for example br), then they are all printed.
2036 bool PrintAllTypes = false;
2037 const Type *TheType = Operand->getType();
2039 // Select, Store and ShuffleVector always print all types.
2040 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2041 || isa<ReturnInst>(I)) {
2042 PrintAllTypes = true;
2044 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2045 Operand = I.getOperand(i);
2046 // note that Operand shouldn't be null, but the test helps make dump()
2047 // more tolerant of malformed IR
2048 if (Operand && Operand->getType() != TheType) {
2049 PrintAllTypes = true; // We have differing types! Print them all!
2055 if (!PrintAllTypes) {
2057 TypePrinter.print(TheType, Out);
2061 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2063 writeOperand(I.getOperand(i), PrintAllTypes);
2067 // Print post operand alignment for load/store.
2068 if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
2069 Out << ", align " << cast<LoadInst>(I).getAlignment();
2070 } else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
2071 Out << ", align " << cast<StoreInst>(I).getAlignment();
2074 // Print Metadata info.
2075 if (!MDNames.empty()) {
2076 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2077 I.getAllMetadata(InstMD);
2078 for (unsigned i = 0, e = InstMD.size(); i != e; ++i)
2079 Out << ", !" << MDNames[InstMD[i].first]
2080 << " !" << Machine.getMetadataSlot(InstMD[i].second);
2082 printInfoComment(I);
2086 //===----------------------------------------------------------------------===//
2087 // External Interface declarations
2088 //===----------------------------------------------------------------------===//
2090 void Module::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2091 SlotTracker SlotTable(this);
2092 formatted_raw_ostream OS(ROS);
2093 AssemblyWriter W(OS, SlotTable, this, AAW);
2097 void Type::print(raw_ostream &OS) const {
2099 OS << "<null Type>";
2102 TypePrinting().print(this, OS);
2105 void Value::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2107 ROS << "printing a <null> value\n";
2110 formatted_raw_ostream OS(ROS);
2111 if (const Instruction *I = dyn_cast<Instruction>(this)) {
2112 const Function *F = I->getParent() ? I->getParent()->getParent() : 0;
2113 SlotTracker SlotTable(F);
2114 AssemblyWriter W(OS, SlotTable, F ? F->getParent() : 0, AAW);
2116 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(this)) {
2117 SlotTracker SlotTable(BB->getParent());
2118 AssemblyWriter W(OS, SlotTable,
2119 BB->getParent() ? BB->getParent()->getParent() : 0, AAW);
2121 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) {
2122 SlotTracker SlotTable(GV->getParent());
2123 AssemblyWriter W(OS, SlotTable, GV->getParent(), AAW);
2125 } else if (const MDString *MDS = dyn_cast<MDString>(this)) {
2126 TypePrinting TypePrinter;
2127 TypePrinter.print(MDS->getType(), OS);
2130 PrintEscapedString(MDS->getString(), OS);
2132 } else if (const MDNode *N = dyn_cast<MDNode>(this)) {
2133 SlotTracker SlotTable(N);
2134 TypePrinting TypePrinter;
2135 SlotTable.initialize();
2136 WriteMDNodes(OS, TypePrinter, SlotTable);
2137 } else if (const NamedMDNode *N = dyn_cast<NamedMDNode>(this)) {
2138 SlotTracker SlotTable(N);
2139 TypePrinting TypePrinter;
2140 SlotTable.initialize();
2141 OS << "!" << N->getName() << " = !{";
2142 for (unsigned i = 0, e = N->getNumElements(); i != e; ++i) {
2144 MDNode *MD = dyn_cast_or_null<MDNode>(N->getElement(i));
2146 OS << '!' << SlotTable.getMetadataSlot(MD);
2151 WriteMDNodes(OS, TypePrinter, SlotTable);
2152 } else if (const Constant *C = dyn_cast<Constant>(this)) {
2153 TypePrinting TypePrinter;
2154 TypePrinter.print(C->getType(), OS);
2156 WriteConstantInt(OS, C, TypePrinter, 0);
2157 } else if (const Argument *A = dyn_cast<Argument>(this)) {
2158 WriteAsOperand(OS, this, true,
2159 A->getParent() ? A->getParent()->getParent() : 0);
2160 } else if (isa<InlineAsm>(this)) {
2161 WriteAsOperand(OS, this, true, 0);
2163 // Otherwise we don't know what it is. Call the virtual function to
2164 // allow a subclass to print itself.
2169 // Value::printCustom - subclasses should override this to implement printing.
2170 void Value::printCustom(raw_ostream &OS) const {
2171 llvm_unreachable("Unknown value to print out!");
2174 // Value::dump - allow easy printing of Values from the debugger.
2175 void Value::dump() const { print(errs()); errs() << '\n'; }
2177 // Type::dump - allow easy printing of Types from the debugger.
2178 // This one uses type names from the given context module
2179 void Type::dump(const Module *Context) const {
2180 WriteTypeSymbolic(errs(), this, Context);
2184 // Type::dump - allow easy printing of Types from the debugger.
2185 void Type::dump() const { dump(0); }
2187 // Module::dump() - Allow printing of Modules from the debugger.
2188 void Module::dump() const { print(errs(), 0); }