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/Instruction.h"
25 #include "llvm/Instructions.h"
26 #include "llvm/Module.h"
27 #include "llvm/ValueSymbolTable.h"
28 #include "llvm/TypeSymbolTable.h"
29 #include "llvm/ADT/DenseMap.h"
30 #include "llvm/ADT/StringExtras.h"
31 #include "llvm/ADT/STLExtras.h"
32 #include "llvm/Support/CFG.h"
33 #include "llvm/Support/MathExtras.h"
34 #include "llvm/Support/Streams.h"
35 #include "llvm/Support/raw_ostream.h"
40 // Make virtual table appear in this compilation unit.
41 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
43 char PrintModulePass::ID = 0;
44 static RegisterPass<PrintModulePass>
45 X("printm", "Print module to stderr");
46 char PrintFunctionPass::ID = 0;
47 static RegisterPass<PrintFunctionPass>
48 Y("print","Print function to stderr");
51 //===----------------------------------------------------------------------===//
53 //===----------------------------------------------------------------------===//
55 static const Module *getModuleFromVal(const Value *V) {
56 if (const Argument *MA = dyn_cast<Argument>(V))
57 return MA->getParent() ? MA->getParent()->getParent() : 0;
59 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
60 return BB->getParent() ? BB->getParent()->getParent() : 0;
62 if (const Instruction *I = dyn_cast<Instruction>(V)) {
63 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
64 return M ? M->getParent() : 0;
67 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
68 return GV->getParent();
73 /// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
75 static std::string QuoteNameIfNeeded(const std::string &Name) {
77 bool needsQuotes = Name[0] >= '0' && Name[0] <= '9';
78 // Scan the name to see if it needs quotes and to replace funky chars with
79 // their octal equivalent.
80 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
82 assert(C != '"' && "Illegal character in LLVM value name!");
83 if (isalnum(C) || C == '-' || C == '.' || C == '_')
88 } else if (isprint(C)) {
94 char hex1 = (C >> 4) & 0x0F;
98 result += hex1 - 10 + 'A';
101 result += hex2 + '0';
103 result += hex2 - 10 + 'A';
107 result.insert(0,"\"");
113 /// getLLVMName - Turn the specified string into an 'LLVM name', which is either
114 /// prefixed with % (if the string only contains simple characters) or is
115 /// surrounded with ""'s (if it has special chars in it).
116 static std::string getLLVMName(const std::string &Name) {
117 assert(!Name.empty() && "Cannot get empty name!");
118 return '%' + QuoteNameIfNeeded(Name);
127 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
128 /// prefixed with % (if the string only contains simple characters) or is
129 /// surrounded with ""'s (if it has special chars in it). Print it out.
130 static void PrintLLVMName(std::ostream &OS, const ValueName *Name,
132 assert(Name && "Cannot get empty name!");
134 default: assert(0 && "Bad prefix!");
135 case GlobalPrefix: OS << '@'; break;
136 case LabelPrefix: break;
137 case LocalPrefix: OS << '%'; break;
140 // Scan the name to see if it needs quotes first.
141 const char *NameStr = Name->getKeyData();
142 unsigned NameLen = Name->getKeyLength();
144 bool NeedsQuotes = NameStr[0] >= '0' && NameStr[0] <= '9';
146 for (unsigned i = 0; i != NameLen; ++i) {
148 if (!isalnum(C) && C != '-' && C != '.' && C != '_') {
155 // If we didn't need any quotes, just write out the name in one blast.
157 OS.write(NameStr, NameLen);
161 // Okay, we need quotes. Output the quotes and escape any scary characters as
164 for (unsigned i = 0; i != NameLen; ++i) {
166 assert(C != '"' && "Illegal character in LLVM value name!");
169 } else if (isprint(C)) {
173 char hex1 = (C >> 4) & 0x0F;
175 OS << (char)(hex1 + '0');
177 OS << (char)(hex1 - 10 + 'A');
178 char hex2 = C & 0x0F;
180 OS << (char)(hex2 + '0');
182 OS << (char)(hex2 - 10 + 'A');
188 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
189 /// prefixed with % (if the string only contains simple characters) or is
190 /// surrounded with ""'s (if it has special chars in it). Print it out.
191 static void PrintLLVMName(std::ostream &OS, const Value *V) {
192 PrintLLVMName(OS, V->getValueName(),
193 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
198 //===----------------------------------------------------------------------===//
199 // SlotTracker Class: Enumerate slot numbers for unnamed values
200 //===----------------------------------------------------------------------===//
204 /// This class provides computation of slot numbers for LLVM Assembly writing.
208 /// ValueMap - A mapping of Values to slot numbers
209 typedef DenseMap<const Value*, unsigned> ValueMap;
212 /// TheModule - The module for which we are holding slot numbers
213 const Module* TheModule;
215 /// TheFunction - The function for which we are holding slot numbers
216 const Function* TheFunction;
217 bool FunctionProcessed;
219 /// mMap - The TypePlanes map for the module level data
223 /// fMap - The TypePlanes map for the function level data
228 /// Construct from a module
229 explicit SlotTracker(const Module *M);
230 /// Construct from a function, starting out in incorp state.
231 explicit SlotTracker(const Function *F);
233 /// Return the slot number of the specified value in it's type
234 /// plane. If something is not in the SlotTracker, return -1.
235 int getLocalSlot(const Value *V);
236 int getGlobalSlot(const GlobalValue *V);
238 /// If you'd like to deal with a function instead of just a module, use
239 /// this method to get its data into the SlotTracker.
240 void incorporateFunction(const Function *F) {
242 FunctionProcessed = false;
245 /// After calling incorporateFunction, use this method to remove the
246 /// most recently incorporated function from the SlotTracker. This
247 /// will reset the state of the machine back to just the module contents.
248 void purgeFunction();
250 // Implementation Details
252 /// This function does the actual initialization.
253 inline void initialize();
255 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
256 void CreateModuleSlot(const GlobalValue *V);
258 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
259 void CreateFunctionSlot(const Value *V);
261 /// Add all of the module level global variables (and their initializers)
262 /// and function declarations, but not the contents of those functions.
263 void processModule();
265 /// Add all of the functions arguments, basic blocks, and instructions
266 void processFunction();
268 SlotTracker(const SlotTracker &); // DO NOT IMPLEMENT
269 void operator=(const SlotTracker &); // DO NOT IMPLEMENT
272 } // end anonymous namespace
275 static SlotTracker *createSlotTracker(const Value *V) {
276 if (const Argument *FA = dyn_cast<Argument>(V))
277 return new SlotTracker(FA->getParent());
279 if (const Instruction *I = dyn_cast<Instruction>(V))
280 return new SlotTracker(I->getParent()->getParent());
282 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
283 return new SlotTracker(BB->getParent());
285 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
286 return new SlotTracker(GV->getParent());
288 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
289 return new SlotTracker(GA->getParent());
291 if (const Function *Func = dyn_cast<Function>(V))
292 return new SlotTracker(Func);
298 #define ST_DEBUG(X) cerr << X
303 // Module level constructor. Causes the contents of the Module (sans functions)
304 // to be added to the slot table.
305 SlotTracker::SlotTracker(const Module *M)
306 : TheModule(M) ///< Saved for lazy initialization.
308 , FunctionProcessed(false)
313 // Function level constructor. Causes the contents of the Module and the one
314 // function provided to be added to the slot table.
315 SlotTracker::SlotTracker(const Function *F)
316 : TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
317 , TheFunction(F) ///< Saved for lazy initialization
318 , FunctionProcessed(false)
323 inline void SlotTracker::initialize() {
326 TheModule = 0; ///< Prevent re-processing next time we're called.
328 if (TheFunction && !FunctionProcessed)
332 // Iterate through all the global variables, functions, and global
333 // variable initializers and create slots for them.
334 void SlotTracker::processModule() {
335 ST_DEBUG("begin processModule!\n");
337 // Add all of the unnamed global variables to the value table.
338 for (Module::const_global_iterator I = TheModule->global_begin(),
339 E = TheModule->global_end(); I != E; ++I)
343 // Add all the unnamed functions to the table.
344 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
349 ST_DEBUG("end processModule!\n");
353 // Process the arguments, basic blocks, and instructions of a function.
354 void SlotTracker::processFunction() {
355 ST_DEBUG("begin processFunction!\n");
358 // Add all the function arguments with no names.
359 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
360 AE = TheFunction->arg_end(); AI != AE; ++AI)
362 CreateFunctionSlot(AI);
364 ST_DEBUG("Inserting Instructions:\n");
366 // Add all of the basic blocks and instructions with no names.
367 for (Function::const_iterator BB = TheFunction->begin(),
368 E = TheFunction->end(); BB != E; ++BB) {
370 CreateFunctionSlot(BB);
371 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
372 if (I->getType() != Type::VoidTy && !I->hasName())
373 CreateFunctionSlot(I);
376 FunctionProcessed = true;
378 ST_DEBUG("end processFunction!\n");
381 /// Clean up after incorporating a function. This is the only way to get out of
382 /// the function incorporation state that affects get*Slot/Create*Slot. Function
383 /// incorporation state is indicated by TheFunction != 0.
384 void SlotTracker::purgeFunction() {
385 ST_DEBUG("begin purgeFunction!\n");
386 fMap.clear(); // Simply discard the function level map
388 FunctionProcessed = false;
389 ST_DEBUG("end purgeFunction!\n");
392 /// getGlobalSlot - Get the slot number of a global value.
393 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
394 // Check for uninitialized state and do lazy initialization.
397 // Find the type plane in the module map
398 ValueMap::iterator MI = mMap.find(V);
399 return MI == mMap.end() ? -1 : MI->second;
403 /// getLocalSlot - Get the slot number for a value that is local to a function.
404 int SlotTracker::getLocalSlot(const Value *V) {
405 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
407 // Check for uninitialized state and do lazy initialization.
410 ValueMap::iterator FI = fMap.find(V);
411 return FI == fMap.end() ? -1 : FI->second;
415 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
416 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
417 assert(V && "Can't insert a null Value into SlotTracker!");
418 assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
419 assert(!V->hasName() && "Doesn't need a slot!");
421 unsigned DestSlot = mNext++;
424 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
426 // G = Global, F = Function, A = Alias, o = other
427 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
428 (isa<Function>(V) ? 'F' :
429 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
433 /// CreateSlot - Create a new slot for the specified value if it has no name.
434 void SlotTracker::CreateFunctionSlot(const Value *V) {
435 assert(V->getType() != Type::VoidTy && !V->hasName() &&
436 "Doesn't need a slot!");
438 unsigned DestSlot = fNext++;
441 // G = Global, F = Function, o = other
442 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
443 DestSlot << " [o]\n");
448 //===----------------------------------------------------------------------===//
449 // AsmWriter Implementation
450 //===----------------------------------------------------------------------===//
452 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
453 std::map<const Type *, std::string> &TypeTable,
454 SlotTracker *Machine);
458 /// fillTypeNameTable - If the module has a symbol table, take all global types
459 /// and stuff their names into the TypeNames map.
461 static void fillTypeNameTable(const Module *M,
462 std::map<const Type *, std::string> &TypeNames) {
464 const TypeSymbolTable &ST = M->getTypeSymbolTable();
465 TypeSymbolTable::const_iterator TI = ST.begin();
466 for (; TI != ST.end(); ++TI) {
467 // As a heuristic, don't insert pointer to primitive types, because
468 // they are used too often to have a single useful name.
470 const Type *Ty = cast<Type>(TI->second);
471 if (!isa<PointerType>(Ty) ||
472 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType() ||
473 !cast<PointerType>(Ty)->getElementType()->isInteger() ||
474 isa<OpaqueType>(cast<PointerType>(Ty)->getElementType()))
475 TypeNames.insert(std::make_pair(Ty, getLLVMName(TI->first)));
481 static void calcTypeName(const Type *Ty,
482 std::vector<const Type *> &TypeStack,
483 std::map<const Type *, std::string> &TypeNames,
484 std::string & Result){
485 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty))) {
486 Result += Ty->getDescription(); // Base case
490 // Check to see if the type is named.
491 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
492 if (I != TypeNames.end()) {
497 if (isa<OpaqueType>(Ty)) {
502 // Check to see if the Type is already on the stack...
503 unsigned Slot = 0, CurSize = TypeStack.size();
504 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
506 // This is another base case for the recursion. In this case, we know
507 // that we have looped back to a type that we have previously visited.
508 // Generate the appropriate upreference to handle this.
509 if (Slot < CurSize) {
510 Result += "\\" + utostr(CurSize-Slot); // Here's the upreference
514 TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
516 switch (Ty->getTypeID()) {
517 case Type::IntegerTyID: {
518 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
519 Result += "i" + utostr(BitWidth);
522 case Type::FunctionTyID: {
523 const FunctionType *FTy = cast<FunctionType>(Ty);
524 calcTypeName(FTy->getReturnType(), TypeStack, TypeNames, Result);
526 for (FunctionType::param_iterator I = FTy->param_begin(),
527 E = FTy->param_end(); I != E; ++I) {
528 if (I != FTy->param_begin())
530 calcTypeName(*I, TypeStack, TypeNames, Result);
532 if (FTy->isVarArg()) {
533 if (FTy->getNumParams()) Result += ", ";
539 case Type::StructTyID: {
540 const StructType *STy = cast<StructType>(Ty);
544 for (StructType::element_iterator I = STy->element_begin(),
545 E = STy->element_end(); I != E; ++I) {
546 if (I != STy->element_begin())
548 calcTypeName(*I, TypeStack, TypeNames, Result);
555 case Type::PointerTyID: {
556 const PointerType *PTy = cast<PointerType>(Ty);
557 calcTypeName(PTy->getElementType(),
558 TypeStack, TypeNames, Result);
559 if (unsigned AddressSpace = PTy->getAddressSpace())
560 Result += " addrspace(" + utostr(AddressSpace) + ")";
564 case Type::ArrayTyID: {
565 const ArrayType *ATy = cast<ArrayType>(Ty);
566 Result += "[" + utostr(ATy->getNumElements()) + " x ";
567 calcTypeName(ATy->getElementType(), TypeStack, TypeNames, Result);
571 case Type::VectorTyID: {
572 const VectorType *PTy = cast<VectorType>(Ty);
573 Result += "<" + utostr(PTy->getNumElements()) + " x ";
574 calcTypeName(PTy->getElementType(), TypeStack, TypeNames, Result);
578 case Type::OpaqueTyID:
582 Result += "<unrecognized-type>";
586 TypeStack.pop_back(); // Remove self from stack...
590 /// printTypeInt - The internal guts of printing out a type that has a
591 /// potentially named portion.
593 static std::ostream &printTypeInt(std::ostream &Out, const Type *Ty,
594 std::map<const Type *, std::string> &TypeNames) {
595 // Primitive types always print out their description, regardless of whether
596 // they have been named or not.
598 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty)))
599 return Out << Ty->getDescription();
601 // Check to see if the type is named.
602 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
603 if (I != TypeNames.end()) return Out << I->second;
605 // Otherwise we have a type that has not been named but is a derived type.
606 // Carefully recurse the type hierarchy to print out any contained symbolic
609 std::vector<const Type *> TypeStack;
610 std::string TypeName;
611 calcTypeName(Ty, TypeStack, TypeNames, TypeName);
612 TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
613 return (Out << TypeName);
617 /// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
618 /// type, iff there is an entry in the modules symbol table for the specified
619 /// type or one of it's component types. This is slower than a simple x << Type
621 void llvm::WriteTypeSymbolic(std::ostream &Out, const Type *Ty,
625 // If they want us to print out a type, but there is no context, we can't
626 // print it symbolically.
628 Out << Ty->getDescription();
630 std::map<const Type *, std::string> TypeNames;
631 fillTypeNameTable(M, TypeNames);
632 printTypeInt(Out, Ty, TypeNames);
636 // PrintEscapedString - Print each character of the specified string, escaping
637 // it if it is not printable or if it is an escape char.
638 static void PrintEscapedString(const std::string &Str, std::ostream &Out) {
639 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
640 unsigned char C = Str[i];
641 if (isprint(C) && C != '"' && C != '\\') {
645 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
646 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
651 static const char *getPredicateText(unsigned predicate) {
652 const char * pred = "unknown";
654 case FCmpInst::FCMP_FALSE: pred = "false"; break;
655 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
656 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
657 case FCmpInst::FCMP_OGE: pred = "oge"; break;
658 case FCmpInst::FCMP_OLT: pred = "olt"; break;
659 case FCmpInst::FCMP_OLE: pred = "ole"; break;
660 case FCmpInst::FCMP_ONE: pred = "one"; break;
661 case FCmpInst::FCMP_ORD: pred = "ord"; break;
662 case FCmpInst::FCMP_UNO: pred = "uno"; break;
663 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
664 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
665 case FCmpInst::FCMP_UGE: pred = "uge"; break;
666 case FCmpInst::FCMP_ULT: pred = "ult"; break;
667 case FCmpInst::FCMP_ULE: pred = "ule"; break;
668 case FCmpInst::FCMP_UNE: pred = "une"; break;
669 case FCmpInst::FCMP_TRUE: pred = "true"; break;
670 case ICmpInst::ICMP_EQ: pred = "eq"; break;
671 case ICmpInst::ICMP_NE: pred = "ne"; break;
672 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
673 case ICmpInst::ICMP_SGE: pred = "sge"; break;
674 case ICmpInst::ICMP_SLT: pred = "slt"; break;
675 case ICmpInst::ICMP_SLE: pred = "sle"; break;
676 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
677 case ICmpInst::ICMP_UGE: pred = "uge"; break;
678 case ICmpInst::ICMP_ULT: pred = "ult"; break;
679 case ICmpInst::ICMP_ULE: pred = "ule"; break;
684 static void WriteConstantInt(std::ostream &Out, const Constant *CV,
685 std::map<const Type *, std::string> &TypeTable,
686 SlotTracker *Machine) {
687 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
688 if (CI->getType() == Type::Int1Ty) {
689 Out << (CI->getZExtValue() ? "true" : "false");
692 Out << CI->getValue();
696 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
697 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble ||
698 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle) {
699 // We would like to output the FP constant value in exponential notation,
700 // but we cannot do this if doing so will lose precision. Check here to
701 // make sure that we only output it in exponential format if we can parse
702 // the value back and get the same value.
704 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
705 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
706 CFP->getValueAPF().convertToFloat();
707 std::string StrVal = ftostr(CFP->getValueAPF());
709 // Check to make sure that the stringized number is not some string like
710 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
711 // that the string matches the "[-+]?[0-9]" regex.
713 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
714 ((StrVal[0] == '-' || StrVal[0] == '+') &&
715 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
716 // Reparse stringized version!
717 if (atof(StrVal.c_str()) == Val) {
722 // Otherwise we could not reparse it to exactly the same value, so we must
723 // output the string in hexadecimal format!
724 assert(sizeof(double) == sizeof(uint64_t) &&
725 "assuming that double is 64 bits!");
726 Out << "0x" << utohexstr(DoubleToBits(Val));
728 // Some form of long double. These appear as a magic letter identifying
729 // the type, then a fixed number of hex digits.
731 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended)
733 else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad)
735 else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
738 assert(0 && "Unsupported floating point type");
739 // api needed to prevent premature destruction
740 APInt api = CFP->getValueAPF().convertToAPInt();
741 const uint64_t* p = api.getRawData();
744 int width = api.getBitWidth();
745 for (int j=0; j<width; j+=4, shiftcount-=4) {
746 unsigned int nibble = (word>>shiftcount) & 15;
748 Out << (unsigned char)(nibble + '0');
750 Out << (unsigned char)(nibble - 10 + 'A');
751 if (shiftcount == 0 && j+4 < width) {
755 shiftcount = width-j-4;
759 } else if (isa<ConstantAggregateZero>(CV)) {
760 Out << "zeroinitializer";
761 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
762 // As a special case, print the array as a string if it is an array of
763 // i8 with ConstantInt values.
765 const Type *ETy = CA->getType()->getElementType();
766 if (CA->isString()) {
768 PrintEscapedString(CA->getAsString(), Out);
771 } else { // Cannot output in string format...
773 if (CA->getNumOperands()) {
775 printTypeInt(Out, ETy, TypeTable);
776 WriteAsOperandInternal(Out, CA->getOperand(0),
778 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
780 printTypeInt(Out, ETy, TypeTable);
781 WriteAsOperandInternal(Out, CA->getOperand(i), TypeTable, Machine);
786 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
787 if (CS->getType()->isPacked())
790 unsigned N = CS->getNumOperands();
793 printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
795 WriteAsOperandInternal(Out, CS->getOperand(0), TypeTable, Machine);
797 for (unsigned i = 1; i < N; i++) {
799 printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
801 WriteAsOperandInternal(Out, CS->getOperand(i), TypeTable, Machine);
806 if (CS->getType()->isPacked())
808 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
809 const Type *ETy = CP->getType()->getElementType();
810 assert(CP->getNumOperands() > 0 &&
811 "Number of operands for a PackedConst must be > 0");
813 printTypeInt(Out, ETy, TypeTable);
814 WriteAsOperandInternal(Out, CP->getOperand(0), TypeTable, Machine);
815 for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
817 printTypeInt(Out, ETy, TypeTable);
818 WriteAsOperandInternal(Out, CP->getOperand(i), TypeTable, Machine);
821 } else if (isa<ConstantPointerNull>(CV)) {
824 } else if (isa<UndefValue>(CV)) {
827 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
828 Out << CE->getOpcodeName();
830 Out << " " << getPredicateText(CE->getPredicate());
833 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
834 printTypeInt(Out, (*OI)->getType(), TypeTable);
835 WriteAsOperandInternal(Out, *OI, TypeTable, Machine);
836 if (OI+1 != CE->op_end())
840 if (CE->hasIndices()) {
841 const SmallVector<unsigned, 4> &Indices = CE->getIndices();
842 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
843 Out << ", " << Indices[i];
848 printTypeInt(Out, CE->getType(), TypeTable);
854 Out << "<placeholder or erroneous Constant>";
859 /// WriteAsOperand - Write the name of the specified value out to the specified
860 /// ostream. This can be useful when you just want to print int %reg126, not
861 /// the whole instruction that generated it.
863 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
864 std::map<const Type*, std::string> &TypeTable,
865 SlotTracker *Machine) {
868 PrintLLVMName(Out, V);
872 const Constant *CV = dyn_cast<Constant>(V);
873 if (CV && !isa<GlobalValue>(CV)) {
874 WriteConstantInt(Out, CV, TypeTable, Machine);
875 } else if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
877 if (IA->hasSideEffects())
878 Out << "sideeffect ";
880 PrintEscapedString(IA->getAsmString(), Out);
882 PrintEscapedString(IA->getConstraintString(), Out);
888 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
889 Slot = Machine->getGlobalSlot(GV);
892 Slot = Machine->getLocalSlot(V);
895 Machine = createSlotTracker(V);
897 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
898 Slot = Machine->getGlobalSlot(GV);
901 Slot = Machine->getLocalSlot(V);
909 Out << Prefix << Slot;
915 /// WriteAsOperand - Write the name of the specified value out to the specified
916 /// ostream. This can be useful when you just want to print int %reg126, not
917 /// the whole instruction that generated it.
919 void llvm::WriteAsOperand(std::ostream &Out, const Value *V, bool PrintType,
920 const Module *Context) {
921 std::map<const Type *, std::string> TypeNames;
922 if (Context == 0) Context = getModuleFromVal(V);
925 fillTypeNameTable(Context, TypeNames);
928 printTypeInt(Out, V->getType(), TypeNames);
930 WriteAsOperandInternal(Out, V, TypeNames, 0);
936 class AssemblyWriter {
938 SlotTracker &Machine;
939 const Module *TheModule;
940 std::map<const Type *, std::string> TypeNames;
941 AssemblyAnnotationWriter *AnnotationWriter;
943 inline AssemblyWriter(std::ostream &o, SlotTracker &Mac, const Module *M,
944 AssemblyAnnotationWriter *AAW)
945 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
947 // If the module has a symbol table, take all global types and stuff their
948 // names into the TypeNames map.
950 fillTypeNameTable(M, TypeNames);
953 inline void write(const Module *M) { printModule(M); }
954 inline void write(const GlobalVariable *G) { printGlobal(G); }
955 inline void write(const GlobalAlias *G) { printAlias(G); }
956 inline void write(const Function *F) { printFunction(F); }
957 inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
958 inline void write(const Instruction *I) { printInstruction(*I); }
959 inline void write(const Type *Ty) { printType(Ty); }
961 void writeOperand(const Value *Op, bool PrintType);
962 void writeParamOperand(const Value *Operand, ParameterAttributes Attrs);
964 const Module* getModule() { return TheModule; }
967 void printModule(const Module *M);
968 void printTypeSymbolTable(const TypeSymbolTable &ST);
969 void printGlobal(const GlobalVariable *GV);
970 void printAlias(const GlobalAlias *GV);
971 void printFunction(const Function *F);
972 void printArgument(const Argument *FA, ParameterAttributes Attrs);
973 void printBasicBlock(const BasicBlock *BB);
974 void printInstruction(const Instruction &I);
976 // printType - Go to extreme measures to attempt to print out a short,
977 // symbolic version of a type name.
979 std::ostream &printType(const Type *Ty) {
980 return printTypeInt(Out, Ty, TypeNames);
983 // printTypeAtLeastOneLevel - Print out one level of the possibly complex type
984 // without considering any symbolic types that we may have equal to it.
986 std::ostream &printTypeAtLeastOneLevel(const Type *Ty);
988 // printInfoComment - Print a little comment after the instruction indicating
989 // which slot it occupies.
990 void printInfoComment(const Value &V);
992 } // end of llvm namespace
994 /// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
995 /// without considering any symbolic types that we may have equal to it.
997 std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
998 if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
999 Out << "i" << utostr(ITy->getBitWidth());
1000 else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
1001 printType(FTy->getReturnType());
1003 for (FunctionType::param_iterator I = FTy->param_begin(),
1004 E = FTy->param_end(); I != E; ++I) {
1005 if (I != FTy->param_begin())
1009 if (FTy->isVarArg()) {
1010 if (FTy->getNumParams()) Out << ", ";
1014 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
1015 if (STy->isPacked())
1018 for (StructType::element_iterator I = STy->element_begin(),
1019 E = STy->element_end(); I != E; ++I) {
1020 if (I != STy->element_begin())
1025 if (STy->isPacked())
1027 } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
1028 printType(PTy->getElementType());
1029 if (unsigned AddressSpace = PTy->getAddressSpace())
1030 Out << " addrspace(" << AddressSpace << ")";
1032 } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
1033 Out << '[' << ATy->getNumElements() << " x ";
1034 printType(ATy->getElementType()) << ']';
1035 } else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
1036 Out << '<' << PTy->getNumElements() << " x ";
1037 printType(PTy->getElementType()) << '>';
1039 else if (isa<OpaqueType>(Ty)) {
1042 if (!Ty->isPrimitiveType())
1043 Out << "<unknown derived type>";
1050 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1052 Out << "<null operand!>";
1054 if (PrintType) { Out << ' '; printType(Operand->getType()); }
1055 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
1059 void AssemblyWriter::writeParamOperand(const Value *Operand,
1060 ParameterAttributes Attrs) {
1062 Out << "<null operand!>";
1066 printType(Operand->getType());
1067 // Print parameter attributes list
1068 if (Attrs != ParamAttr::None)
1069 Out << ' ' << ParamAttr::getAsString(Attrs);
1070 // Print the operand
1071 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
1075 void AssemblyWriter::printModule(const Module *M) {
1076 if (!M->getModuleIdentifier().empty() &&
1077 // Don't print the ID if it will start a new line (which would
1078 // require a comment char before it).
1079 M->getModuleIdentifier().find('\n') == std::string::npos)
1080 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1082 if (!M->getDataLayout().empty())
1083 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1084 if (!M->getTargetTriple().empty())
1085 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1087 if (!M->getModuleInlineAsm().empty()) {
1088 // Split the string into lines, to make it easier to read the .ll file.
1089 std::string Asm = M->getModuleInlineAsm();
1091 size_t NewLine = Asm.find_first_of('\n', CurPos);
1092 while (NewLine != std::string::npos) {
1093 // We found a newline, print the portion of the asm string from the
1094 // last newline up to this newline.
1095 Out << "module asm \"";
1096 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1100 NewLine = Asm.find_first_of('\n', CurPos);
1102 Out << "module asm \"";
1103 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
1107 // Loop over the dependent libraries and emit them.
1108 Module::lib_iterator LI = M->lib_begin();
1109 Module::lib_iterator LE = M->lib_end();
1111 Out << "deplibs = [ ";
1113 Out << '"' << *LI << '"';
1121 // Loop over the symbol table, emitting all named constants.
1122 printTypeSymbolTable(M->getTypeSymbolTable());
1124 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1128 // Output all aliases.
1129 if (!M->alias_empty()) Out << "\n";
1130 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1134 // Output all of the functions.
1135 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1139 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1140 if (GV->hasName()) {
1141 PrintLLVMName(Out, GV);
1145 if (!GV->hasInitializer()) {
1146 switch (GV->getLinkage()) {
1147 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1148 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1149 default: Out << "external "; break;
1152 switch (GV->getLinkage()) {
1153 case GlobalValue::InternalLinkage: Out << "internal "; break;
1154 case GlobalValue::CommonLinkage: Out << "common "; break;
1155 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
1156 case GlobalValue::WeakLinkage: Out << "weak "; break;
1157 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1158 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1159 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1160 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1161 case GlobalValue::ExternalLinkage: break;
1162 case GlobalValue::GhostLinkage:
1163 cerr << "GhostLinkage not allowed in AsmWriter!\n";
1166 switch (GV->getVisibility()) {
1167 default: assert(0 && "Invalid visibility style!");
1168 case GlobalValue::DefaultVisibility: break;
1169 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1170 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1174 if (GV->isThreadLocal()) Out << "thread_local ";
1175 Out << (GV->isConstant() ? "constant " : "global ");
1176 printType(GV->getType()->getElementType());
1178 if (GV->hasInitializer())
1179 writeOperand(GV->getInitializer(), false);
1181 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1182 Out << " addrspace(" << AddressSpace << ") ";
1184 if (GV->hasSection())
1185 Out << ", section \"" << GV->getSection() << '"';
1186 if (GV->getAlignment())
1187 Out << ", align " << GV->getAlignment();
1189 printInfoComment(*GV);
1193 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1194 // Don't crash when dumping partially built GA
1196 Out << "<<nameless>> = ";
1198 PrintLLVMName(Out, GA);
1201 switch (GA->getVisibility()) {
1202 default: assert(0 && "Invalid visibility style!");
1203 case GlobalValue::DefaultVisibility: break;
1204 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1205 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1210 switch (GA->getLinkage()) {
1211 case GlobalValue::WeakLinkage: Out << "weak "; break;
1212 case GlobalValue::InternalLinkage: Out << "internal "; break;
1213 case GlobalValue::ExternalLinkage: break;
1215 assert(0 && "Invalid alias linkage");
1218 const Constant *Aliasee = GA->getAliasee();
1220 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
1221 printType(GV->getType());
1223 PrintLLVMName(Out, GV);
1224 } else if (const Function *F = dyn_cast<Function>(Aliasee)) {
1225 printType(F->getFunctionType());
1229 PrintLLVMName(Out, F);
1232 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(Aliasee)) {
1233 printType(GA->getType());
1235 PrintLLVMName(Out, GA);
1237 const ConstantExpr *CE = 0;
1238 if ((CE = dyn_cast<ConstantExpr>(Aliasee)) &&
1239 (CE->getOpcode() == Instruction::BitCast)) {
1240 writeOperand(CE, false);
1242 assert(0 && "Unsupported aliasee");
1245 printInfoComment(*GA);
1249 void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
1251 for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
1253 Out << "\t" << getLLVMName(TI->first) << " = type ";
1255 // Make sure we print out at least one level of the type structure, so
1256 // that we do not get %FILE = type %FILE
1258 printTypeAtLeastOneLevel(TI->second) << "\n";
1262 /// printFunction - Print all aspects of a function.
1264 void AssemblyWriter::printFunction(const Function *F) {
1265 // Print out the return type and name...
1268 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1270 if (F->isDeclaration())
1275 switch (F->getLinkage()) {
1276 case GlobalValue::InternalLinkage: Out << "internal "; break;
1277 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
1278 case GlobalValue::WeakLinkage: Out << "weak "; break;
1279 case GlobalValue::CommonLinkage: Out << "common "; break;
1280 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1281 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1282 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1283 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1284 case GlobalValue::ExternalLinkage: break;
1285 case GlobalValue::GhostLinkage:
1286 cerr << "GhostLinkage not allowed in AsmWriter!\n";
1289 switch (F->getVisibility()) {
1290 default: assert(0 && "Invalid visibility style!");
1291 case GlobalValue::DefaultVisibility: break;
1292 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1293 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1296 // Print the calling convention.
1297 switch (F->getCallingConv()) {
1298 case CallingConv::C: break; // default
1299 case CallingConv::Fast: Out << "fastcc "; break;
1300 case CallingConv::Cold: Out << "coldcc "; break;
1301 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1302 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1303 case CallingConv::X86_SSECall: Out << "x86_ssecallcc "; break;
1304 default: Out << "cc" << F->getCallingConv() << " "; break;
1307 const FunctionType *FT = F->getFunctionType();
1308 const PAListPtr &Attrs = F->getParamAttrs();
1309 printType(F->getReturnType()) << ' ';
1311 PrintLLVMName(Out, F);
1315 Machine.incorporateFunction(F);
1317 // Loop over the arguments, printing them...
1320 if (!F->isDeclaration()) {
1321 // If this isn't a declaration, print the argument names as well.
1322 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1324 // Insert commas as we go... the first arg doesn't get a comma
1325 if (I != F->arg_begin()) Out << ", ";
1326 printArgument(I, Attrs.getParamAttrs(Idx));
1330 // Otherwise, print the types from the function type.
1331 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1332 // Insert commas as we go... the first arg doesn't get a comma
1336 printType(FT->getParamType(i));
1338 ParameterAttributes ArgAttrs = Attrs.getParamAttrs(i+1);
1339 if (ArgAttrs != ParamAttr::None)
1340 Out << ' ' << ParamAttr::getAsString(ArgAttrs);
1344 // Finish printing arguments...
1345 if (FT->isVarArg()) {
1346 if (FT->getNumParams()) Out << ", ";
1347 Out << "..."; // Output varargs portion of signature!
1350 ParameterAttributes RetAttrs = Attrs.getParamAttrs(0);
1351 if (RetAttrs != ParamAttr::None)
1352 Out << ' ' << ParamAttr::getAsString(Attrs.getParamAttrs(0));
1353 if (F->hasSection())
1354 Out << " section \"" << F->getSection() << '"';
1355 if (F->getAlignment())
1356 Out << " align " << F->getAlignment();
1358 Out << " gc \"" << F->getGC() << '"';
1360 if (F->isDeclaration()) {
1365 // Output all of its basic blocks... for the function
1366 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1372 Machine.purgeFunction();
1375 /// printArgument - This member is called for every argument that is passed into
1376 /// the function. Simply print it out
1378 void AssemblyWriter::printArgument(const Argument *Arg,
1379 ParameterAttributes Attrs) {
1381 printType(Arg->getType());
1383 // Output parameter attributes list
1384 if (Attrs != ParamAttr::None)
1385 Out << ' ' << ParamAttr::getAsString(Attrs);
1387 // Output name, if available...
1388 if (Arg->hasName()) {
1390 PrintLLVMName(Out, Arg);
1394 /// printBasicBlock - This member is called for each basic block in a method.
1396 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1397 if (BB->hasName()) { // Print out the label if it exists...
1399 PrintLLVMName(Out, BB->getValueName(), LabelPrefix);
1401 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1402 Out << "\n; <label>:";
1403 int Slot = Machine.getLocalSlot(BB);
1410 if (BB->getParent() == 0)
1411 Out << "\t\t; Error: Block without parent!";
1412 else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1413 // Output predecessors for the block...
1415 pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
1418 Out << " No predecessors!";
1421 writeOperand(*PI, false);
1422 for (++PI; PI != PE; ++PI) {
1424 writeOperand(*PI, false);
1431 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1433 // Output all of the instructions in the basic block...
1434 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1435 printInstruction(*I);
1437 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1441 /// printInfoComment - Print a little comment after the instruction indicating
1442 /// which slot it occupies.
1444 void AssemblyWriter::printInfoComment(const Value &V) {
1445 if (V.getType() != Type::VoidTy) {
1447 printType(V.getType()) << '>';
1451 if (const GlobalValue *GV = dyn_cast<GlobalValue>(&V))
1452 SlotNum = Machine.getGlobalSlot(GV);
1454 SlotNum = Machine.getLocalSlot(&V);
1458 Out << ':' << SlotNum; // Print out the def slot taken.
1460 Out << " [#uses=" << V.getNumUses() << ']'; // Output # uses
1464 // This member is called for each Instruction in a function..
1465 void AssemblyWriter::printInstruction(const Instruction &I) {
1466 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1470 // Print out name if it exists...
1472 PrintLLVMName(Out, &I);
1476 // If this is a volatile load or store, print out the volatile marker.
1477 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1478 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
1480 } else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
1481 // If this is a call, check if it's a tail call.
1485 // Print out the opcode...
1486 Out << I.getOpcodeName();
1488 // Print out the compare instruction predicates
1489 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1490 Out << " " << getPredicateText(CI->getPredicate());
1492 // Print out the type of the operands...
1493 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1495 // Special case conditional branches to swizzle the condition out to the front
1496 if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
1497 writeOperand(I.getOperand(2), true);
1499 writeOperand(Operand, true);
1501 writeOperand(I.getOperand(1), true);
1503 } else if (isa<SwitchInst>(I)) {
1504 // Special case switch statement to get formatting nice and correct...
1505 writeOperand(Operand , true); Out << ',';
1506 writeOperand(I.getOperand(1), true); Out << " [";
1508 for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
1510 writeOperand(I.getOperand(op ), true); Out << ',';
1511 writeOperand(I.getOperand(op+1), true);
1514 } else if (isa<PHINode>(I)) {
1516 printType(I.getType());
1519 for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
1520 if (op) Out << ", ";
1522 writeOperand(I.getOperand(op ), false); Out << ',';
1523 writeOperand(I.getOperand(op+1), false); Out << " ]";
1525 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1526 writeOperand(I.getOperand(0), true);
1527 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1529 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1530 writeOperand(I.getOperand(0), true); Out << ',';
1531 writeOperand(I.getOperand(1), true);
1532 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1534 } else if (isa<ReturnInst>(I) && !Operand) {
1536 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1537 // Print the calling convention being used.
1538 switch (CI->getCallingConv()) {
1539 case CallingConv::C: break; // default
1540 case CallingConv::Fast: Out << " fastcc"; break;
1541 case CallingConv::Cold: Out << " coldcc"; break;
1542 case CallingConv::X86_StdCall: Out << " x86_stdcallcc"; break;
1543 case CallingConv::X86_FastCall: Out << " x86_fastcallcc"; break;
1544 case CallingConv::X86_SSECall: Out << " x86_ssecallcc"; break;
1545 default: Out << " cc" << CI->getCallingConv(); break;
1548 const PointerType *PTy = cast<PointerType>(Operand->getType());
1549 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1550 const Type *RetTy = FTy->getReturnType();
1551 const PAListPtr &PAL = CI->getParamAttrs();
1553 // If possible, print out the short form of the call instruction. We can
1554 // only do this if the first argument is a pointer to a nonvararg function,
1555 // and if the return type is not a pointer to a function.
1557 if (!FTy->isVarArg() &&
1558 (!isa<PointerType>(RetTy) ||
1559 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1560 Out << ' '; printType(RetTy);
1561 writeOperand(Operand, false);
1563 writeOperand(Operand, true);
1566 for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
1569 writeParamOperand(I.getOperand(op), PAL.getParamAttrs(op));
1572 if (PAL.getParamAttrs(0) != ParamAttr::None)
1573 Out << ' ' << ParamAttr::getAsString(PAL.getParamAttrs(0));
1574 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1575 const PointerType *PTy = cast<PointerType>(Operand->getType());
1576 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1577 const Type *RetTy = FTy->getReturnType();
1578 const PAListPtr &PAL = II->getParamAttrs();
1580 // Print the calling convention being used.
1581 switch (II->getCallingConv()) {
1582 case CallingConv::C: break; // default
1583 case CallingConv::Fast: Out << " fastcc"; break;
1584 case CallingConv::Cold: Out << " coldcc"; break;
1585 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1586 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1587 case CallingConv::X86_SSECall: Out << "x86_ssecallcc "; break;
1588 default: Out << " cc" << II->getCallingConv(); break;
1591 // If possible, print out the short form of the invoke instruction. We can
1592 // only do this if the first argument is a pointer to a nonvararg function,
1593 // and if the return type is not a pointer to a function.
1595 if (!FTy->isVarArg() &&
1596 (!isa<PointerType>(RetTy) ||
1597 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1598 Out << ' '; printType(RetTy);
1599 writeOperand(Operand, false);
1601 writeOperand(Operand, true);
1605 for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
1608 writeParamOperand(I.getOperand(op), PAL.getParamAttrs(op-2));
1612 if (PAL.getParamAttrs(0) != ParamAttr::None)
1613 Out << ' ' << ParamAttr::getAsString(PAL.getParamAttrs(0));
1614 Out << "\n\t\t\tto";
1615 writeOperand(II->getNormalDest(), true);
1617 writeOperand(II->getUnwindDest(), true);
1619 } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
1621 printType(AI->getType()->getElementType());
1622 if (AI->isArrayAllocation()) {
1624 writeOperand(AI->getArraySize(), true);
1626 if (AI->getAlignment()) {
1627 Out << ", align " << AI->getAlignment();
1629 } else if (isa<CastInst>(I)) {
1630 if (Operand) writeOperand(Operand, true); // Work with broken code
1632 printType(I.getType());
1633 } else if (isa<VAArgInst>(I)) {
1634 if (Operand) writeOperand(Operand, true); // Work with broken code
1636 printType(I.getType());
1637 } else if (Operand) { // Print the normal way...
1639 // PrintAllTypes - Instructions who have operands of all the same type
1640 // omit the type from all but the first operand. If the instruction has
1641 // different type operands (for example br), then they are all printed.
1642 bool PrintAllTypes = false;
1643 const Type *TheType = Operand->getType();
1645 // Select, Store and ShuffleVector always print all types.
1646 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
1647 || isa<ReturnInst>(I)) {
1648 PrintAllTypes = true;
1650 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
1651 Operand = I.getOperand(i);
1652 if (Operand->getType() != TheType) {
1653 PrintAllTypes = true; // We have differing types! Print them all!
1659 if (!PrintAllTypes) {
1664 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
1666 writeOperand(I.getOperand(i), PrintAllTypes);
1670 // Print post operand alignment for load/store
1671 if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
1672 Out << ", align " << cast<LoadInst>(I).getAlignment();
1673 } else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
1674 Out << ", align " << cast<StoreInst>(I).getAlignment();
1677 printInfoComment(I);
1682 //===----------------------------------------------------------------------===//
1683 // External Interface declarations
1684 //===----------------------------------------------------------------------===//
1686 void Module::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1687 SlotTracker SlotTable(this);
1688 AssemblyWriter W(o, SlotTable, this, AAW);
1692 void GlobalVariable::print(std::ostream &o) const {
1693 SlotTracker SlotTable(getParent());
1694 AssemblyWriter W(o, SlotTable, getParent(), 0);
1698 void GlobalAlias::print(std::ostream &o) const {
1699 SlotTracker SlotTable(getParent());
1700 AssemblyWriter W(o, SlotTable, getParent(), 0);
1704 void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1705 SlotTracker SlotTable(getParent());
1706 AssemblyWriter W(o, SlotTable, getParent(), AAW);
1711 void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1712 WriteAsOperand(o, this, true, 0);
1715 void BasicBlock::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1716 SlotTracker SlotTable(getParent());
1717 AssemblyWriter W(o, SlotTable,
1718 getParent() ? getParent()->getParent() : 0, AAW);
1722 void Instruction::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1723 const Function *F = getParent() ? getParent()->getParent() : 0;
1724 SlotTracker SlotTable(F);
1725 AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0, AAW);
1730 void Constant::print(std::ostream &o) const {
1731 if (this == 0) { o << "<null> constant value\n"; return; }
1733 o << ' ' << getType()->getDescription() << ' ';
1735 std::map<const Type *, std::string> TypeTable;
1736 WriteConstantInt(o, this, TypeTable, 0);
1739 void Type::print(std::ostream &o) const {
1743 o << getDescription();
1746 void Argument::print(std::ostream &o) const {
1747 WriteAsOperand(o, this, true, getParent() ? getParent()->getParent() : 0);
1750 // Value::dump - allow easy printing of Values from the debugger.
1751 // Located here because so much of the needed functionality is here.
1752 void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
1754 // Type::dump - allow easy printing of Values from the debugger.
1755 // Located here because so much of the needed functionality is here.
1756 void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }