1 //===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source 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/ParameterAttributes.h"
24 #include "llvm/InlineAsm.h"
25 #include "llvm/Instruction.h"
26 #include "llvm/Instructions.h"
27 #include "llvm/Module.h"
28 #include "llvm/ValueSymbolTable.h"
29 #include "llvm/TypeSymbolTable.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"
41 // Make virtual table appear in this compilation unit.
42 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
44 /// This class provides computation of slot numbers for LLVM Assembly writing.
45 /// @brief LLVM Assembly Writing Slot Computation.
52 /// @brief A mapping of Values to slot numbers
53 typedef std::map<const Value*,unsigned> ValueMap;
56 /// @name Constructors
59 /// @brief Construct from a module
60 SlotMachine(const Module *M);
62 /// @brief Construct from a function, starting out in incorp state.
63 SlotMachine(const Function *F);
69 /// Return the slot number of the specified value in it's type
70 /// plane. If something is not in the SlotMachine, return -1.
71 int getLocalSlot(const Value *V);
72 int getGlobalSlot(const GlobalValue *V);
78 /// If you'd like to deal with a function instead of just a module, use
79 /// this method to get its data into the SlotMachine.
80 void incorporateFunction(const Function *F) {
82 FunctionProcessed = false;
85 /// After calling incorporateFunction, use this method to remove the
86 /// most recently incorporated function from the SlotMachine. This
87 /// will reset the state of the machine back to just the module contents.
91 /// @name Implementation Details
94 /// This function does the actual initialization.
95 inline void initialize();
97 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
98 void CreateModuleSlot(const GlobalValue *V);
100 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
101 void CreateFunctionSlot(const Value *V);
103 /// Add all of the module level global variables (and their initializers)
104 /// and function declarations, but not the contents of those functions.
105 void processModule();
107 /// Add all of the functions arguments, basic blocks, and instructions
108 void processFunction();
110 SlotMachine(const SlotMachine &); // DO NOT IMPLEMENT
111 void operator=(const SlotMachine &); // DO NOT IMPLEMENT
118 /// @brief The module for which we are holding slot numbers
119 const Module* TheModule;
121 /// @brief The function for which we are holding slot numbers
122 const Function* TheFunction;
123 bool FunctionProcessed;
125 /// @brief The TypePlanes map for the module level data
129 /// @brief The TypePlanes map for the function level data
137 } // end namespace llvm
139 char PrintModulePass::ID = 0;
140 static RegisterPass<PrintModulePass>
141 X("printm", "Print module to stderr");
142 char PrintFunctionPass::ID = 0;
143 static RegisterPass<PrintFunctionPass>
144 Y("print","Print function to stderr");
146 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
147 std::map<const Type *, std::string> &TypeTable,
148 SlotMachine *Machine);
150 static const Module *getModuleFromVal(const Value *V) {
151 if (const Argument *MA = dyn_cast<Argument>(V))
152 return MA->getParent() ? MA->getParent()->getParent() : 0;
153 else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
154 return BB->getParent() ? BB->getParent()->getParent() : 0;
155 else if (const Instruction *I = dyn_cast<Instruction>(V)) {
156 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
157 return M ? M->getParent() : 0;
158 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
159 return GV->getParent();
163 static SlotMachine *createSlotMachine(const Value *V) {
164 if (const Argument *FA = dyn_cast<Argument>(V)) {
165 return new SlotMachine(FA->getParent());
166 } else if (const Instruction *I = dyn_cast<Instruction>(V)) {
167 return new SlotMachine(I->getParent()->getParent());
168 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
169 return new SlotMachine(BB->getParent());
170 } else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)){
171 return new SlotMachine(GV->getParent());
172 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V)){
173 return new SlotMachine(GA->getParent());
174 } else if (const Function *Func = dyn_cast<Function>(V)) {
175 return new SlotMachine(Func);
180 /// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
182 static std::string QuoteNameIfNeeded(const std::string &Name) {
184 bool needsQuotes = Name[0] >= '0' && Name[0] <= '9';
185 // Scan the name to see if it needs quotes and to replace funky chars with
186 // their octal equivalent.
187 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
189 assert(C != '"' && "Illegal character in LLVM value name!");
190 if (isalnum(C) || C == '-' || C == '.' || C == '_')
192 else if (C == '\\') {
195 } else if (isprint(C)) {
201 char hex1 = (C >> 4) & 0x0F;
203 result += hex1 + '0';
205 result += hex1 - 10 + 'A';
206 char hex2 = C & 0x0F;
208 result += hex2 + '0';
210 result += hex2 - 10 + 'A';
214 result.insert(0,"\"");
226 /// getLLVMName - Turn the specified string into an 'LLVM name', which is either
227 /// prefixed with % (if the string only contains simple characters) or is
228 /// surrounded with ""'s (if it has special chars in it).
229 static std::string getLLVMName(const std::string &Name, PrefixType Prefix) {
230 assert(!Name.empty() && "Cannot get empty name!");
232 default: assert(0 && "Bad prefix!");
233 case GlobalPrefix: return '@' + QuoteNameIfNeeded(Name);
234 case LabelPrefix: return QuoteNameIfNeeded(Name);
235 case LocalPrefix: return '%' + QuoteNameIfNeeded(Name);
240 /// fillTypeNameTable - If the module has a symbol table, take all global types
241 /// and stuff their names into the TypeNames map.
243 static void fillTypeNameTable(const Module *M,
244 std::map<const Type *, std::string> &TypeNames) {
246 const TypeSymbolTable &ST = M->getTypeSymbolTable();
247 TypeSymbolTable::const_iterator TI = ST.begin();
248 for (; TI != ST.end(); ++TI) {
249 // As a heuristic, don't insert pointer to primitive types, because
250 // they are used too often to have a single useful name.
252 const Type *Ty = cast<Type>(TI->second);
253 if (!isa<PointerType>(Ty) ||
254 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType() ||
255 !cast<PointerType>(Ty)->getElementType()->isInteger() ||
256 isa<OpaqueType>(cast<PointerType>(Ty)->getElementType()))
257 TypeNames.insert(std::make_pair(Ty, getLLVMName(TI->first, LocalPrefix)));
263 static void calcTypeName(const Type *Ty,
264 std::vector<const Type *> &TypeStack,
265 std::map<const Type *, std::string> &TypeNames,
266 std::string & Result){
267 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty))) {
268 Result += Ty->getDescription(); // Base case
272 // Check to see if the type is named.
273 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
274 if (I != TypeNames.end()) {
279 if (isa<OpaqueType>(Ty)) {
284 // Check to see if the Type is already on the stack...
285 unsigned Slot = 0, CurSize = TypeStack.size();
286 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
288 // This is another base case for the recursion. In this case, we know
289 // that we have looped back to a type that we have previously visited.
290 // Generate the appropriate upreference to handle this.
291 if (Slot < CurSize) {
292 Result += "\\" + utostr(CurSize-Slot); // Here's the upreference
296 TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
298 switch (Ty->getTypeID()) {
299 case Type::IntegerTyID: {
300 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
301 Result += "i" + utostr(BitWidth);
304 case Type::FunctionTyID: {
305 const FunctionType *FTy = cast<FunctionType>(Ty);
306 calcTypeName(FTy->getReturnType(), TypeStack, TypeNames, Result);
309 const ParamAttrsList *Attrs = FTy->getParamAttrs();
310 for (FunctionType::param_iterator I = FTy->param_begin(),
311 E = FTy->param_end(); I != E; ++I) {
312 if (I != FTy->param_begin())
314 calcTypeName(*I, TypeStack, TypeNames, Result);
315 if (Attrs && Attrs->getParamAttrs(Idx) != ParamAttr::None) {
317 Result += Attrs->getParamAttrsTextByIndex(Idx);
321 if (FTy->isVarArg()) {
322 if (FTy->getNumParams()) Result += ", ";
326 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None) {
328 Result += Attrs->getParamAttrsTextByIndex(0);
332 case Type::StructTyID: {
333 const StructType *STy = cast<StructType>(Ty);
337 for (StructType::element_iterator I = STy->element_begin(),
338 E = STy->element_end(); I != E; ++I) {
339 if (I != STy->element_begin())
341 calcTypeName(*I, TypeStack, TypeNames, Result);
348 case Type::PointerTyID:
349 calcTypeName(cast<PointerType>(Ty)->getElementType(),
350 TypeStack, TypeNames, Result);
353 case Type::ArrayTyID: {
354 const ArrayType *ATy = cast<ArrayType>(Ty);
355 Result += "[" + utostr(ATy->getNumElements()) + " x ";
356 calcTypeName(ATy->getElementType(), TypeStack, TypeNames, Result);
360 case Type::VectorTyID: {
361 const VectorType *PTy = cast<VectorType>(Ty);
362 Result += "<" + utostr(PTy->getNumElements()) + " x ";
363 calcTypeName(PTy->getElementType(), TypeStack, TypeNames, Result);
367 case Type::OpaqueTyID:
371 Result += "<unrecognized-type>";
375 TypeStack.pop_back(); // Remove self from stack...
379 /// printTypeInt - The internal guts of printing out a type that has a
380 /// potentially named portion.
382 static std::ostream &printTypeInt(std::ostream &Out, const Type *Ty,
383 std::map<const Type *, std::string> &TypeNames) {
384 // Primitive types always print out their description, regardless of whether
385 // they have been named or not.
387 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty)))
388 return Out << Ty->getDescription();
390 // Check to see if the type is named.
391 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
392 if (I != TypeNames.end()) return Out << I->second;
394 // Otherwise we have a type that has not been named but is a derived type.
395 // Carefully recurse the type hierarchy to print out any contained symbolic
398 std::vector<const Type *> TypeStack;
399 std::string TypeName;
400 calcTypeName(Ty, TypeStack, TypeNames, TypeName);
401 TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
402 return (Out << TypeName);
406 /// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
407 /// type, iff there is an entry in the modules symbol table for the specified
408 /// type or one of it's component types. This is slower than a simple x << Type
410 std::ostream &llvm::WriteTypeSymbolic(std::ostream &Out, const Type *Ty,
414 // If they want us to print out a type, but there is no context, we can't
415 // print it symbolically.
417 return Out << Ty->getDescription();
419 std::map<const Type *, std::string> TypeNames;
420 fillTypeNameTable(M, TypeNames);
421 return printTypeInt(Out, Ty, TypeNames);
424 // PrintEscapedString - Print each character of the specified string, escaping
425 // it if it is not printable or if it is an escape char.
426 static void PrintEscapedString(const std::string &Str, std::ostream &Out) {
427 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
428 unsigned char C = Str[i];
429 if (isprint(C) && C != '"' && C != '\\') {
433 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
434 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
439 static const char *getPredicateText(unsigned predicate) {
440 const char * pred = "unknown";
442 case FCmpInst::FCMP_FALSE: pred = "false"; break;
443 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
444 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
445 case FCmpInst::FCMP_OGE: pred = "oge"; break;
446 case FCmpInst::FCMP_OLT: pred = "olt"; break;
447 case FCmpInst::FCMP_OLE: pred = "ole"; break;
448 case FCmpInst::FCMP_ONE: pred = "one"; break;
449 case FCmpInst::FCMP_ORD: pred = "ord"; break;
450 case FCmpInst::FCMP_UNO: pred = "uno"; break;
451 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
452 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
453 case FCmpInst::FCMP_UGE: pred = "uge"; break;
454 case FCmpInst::FCMP_ULT: pred = "ult"; break;
455 case FCmpInst::FCMP_ULE: pred = "ule"; break;
456 case FCmpInst::FCMP_UNE: pred = "une"; break;
457 case FCmpInst::FCMP_TRUE: pred = "true"; break;
458 case ICmpInst::ICMP_EQ: pred = "eq"; break;
459 case ICmpInst::ICMP_NE: pred = "ne"; break;
460 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
461 case ICmpInst::ICMP_SGE: pred = "sge"; break;
462 case ICmpInst::ICMP_SLT: pred = "slt"; break;
463 case ICmpInst::ICMP_SLE: pred = "sle"; break;
464 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
465 case ICmpInst::ICMP_UGE: pred = "uge"; break;
466 case ICmpInst::ICMP_ULT: pred = "ult"; break;
467 case ICmpInst::ICMP_ULE: pred = "ule"; break;
472 /// @brief Internal constant writer.
473 static void WriteConstantInt(std::ostream &Out, const Constant *CV,
474 std::map<const Type *, std::string> &TypeTable,
475 SlotMachine *Machine) {
476 const int IndentSize = 4;
477 static std::string Indent = "\n";
478 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
479 if (CI->getType() == Type::Int1Ty)
480 Out << (CI->getZExtValue() ? "true" : "false");
482 Out << CI->getValue().toStringSigned(10);
483 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
484 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble ||
485 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle) {
486 // We would like to output the FP constant value in exponential notation,
487 // but we cannot do this if doing so will lose precision. Check here to
488 // make sure that we only output it in exponential format if we can parse
489 // the value back and get the same value.
491 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
492 double Val = (isDouble) ? CFP->getValueAPF().convertToDouble() :
493 CFP->getValueAPF().convertToFloat();
494 std::string StrVal = ftostr(CFP->getValueAPF());
496 // Check to make sure that the stringized number is not some string like
497 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
498 // that the string matches the "[-+]?[0-9]" regex.
500 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
501 ((StrVal[0] == '-' || StrVal[0] == '+') &&
502 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
503 // Reparse stringized version!
504 if (atof(StrVal.c_str()) == Val) {
509 // Otherwise we could not reparse it to exactly the same value, so we must
510 // output the string in hexadecimal format!
511 assert(sizeof(double) == sizeof(uint64_t) &&
512 "assuming that double is 64 bits!");
513 Out << "0x" << utohexstr(DoubleToBits(Val));
515 // Some form of long double. These appear as a magic letter identifying
516 // the type, then a fixed number of hex digits.
518 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended)
520 else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad)
523 assert(0 && "Unsupported floating point type");
524 // api needed to prevent premature destruction
525 APInt api = CFP->getValueAPF().convertToAPInt();
526 const uint64_t* p = api.getRawData();
529 int width = CFP->getValueAPF().convertToAPInt().getBitWidth();
530 for (int j=0; j<width; j+=4, shiftcount-=4) {
531 unsigned int nibble = (word>>shiftcount) & 15;
533 Out << (unsigned char)(nibble + '0');
535 Out << (unsigned char)(nibble - 10 + 'A');
536 if (shiftcount == 0) {
540 shiftcount = width-j-4;
544 } else if (isa<ConstantAggregateZero>(CV)) {
545 Out << "zeroinitializer";
546 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
547 // As a special case, print the array as a string if it is an array of
548 // ubytes or an array of sbytes with positive values.
550 const Type *ETy = CA->getType()->getElementType();
551 if (CA->isString()) {
553 PrintEscapedString(CA->getAsString(), Out);
556 } else { // Cannot output in string format...
558 if (CA->getNumOperands()) {
560 printTypeInt(Out, ETy, TypeTable);
561 WriteAsOperandInternal(Out, CA->getOperand(0),
563 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
565 printTypeInt(Out, ETy, TypeTable);
566 WriteAsOperandInternal(Out, CA->getOperand(i), TypeTable, Machine);
571 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
572 if (CS->getType()->isPacked())
575 unsigned N = CS->getNumOperands();
578 Indent += std::string(IndentSize, ' ');
583 printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
585 WriteAsOperandInternal(Out, CS->getOperand(0), TypeTable, Machine);
587 for (unsigned i = 1; i < N; i++) {
589 if (N > 2) Out << Indent;
590 printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
592 WriteAsOperandInternal(Out, CS->getOperand(i), TypeTable, Machine);
594 if (N > 2) Indent.resize(Indent.size() - IndentSize);
598 if (CS->getType()->isPacked())
600 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
601 const Type *ETy = CP->getType()->getElementType();
602 assert(CP->getNumOperands() > 0 &&
603 "Number of operands for a PackedConst must be > 0");
606 printTypeInt(Out, ETy, TypeTable);
607 WriteAsOperandInternal(Out, CP->getOperand(0), TypeTable, Machine);
608 for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
610 printTypeInt(Out, ETy, TypeTable);
611 WriteAsOperandInternal(Out, CP->getOperand(i), TypeTable, Machine);
614 } else if (isa<ConstantPointerNull>(CV)) {
617 } else if (isa<UndefValue>(CV)) {
620 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
621 Out << CE->getOpcodeName();
623 Out << " " << getPredicateText(CE->getPredicate());
626 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
627 printTypeInt(Out, (*OI)->getType(), TypeTable);
628 WriteAsOperandInternal(Out, *OI, TypeTable, Machine);
629 if (OI+1 != CE->op_end())
635 printTypeInt(Out, CE->getType(), TypeTable);
641 Out << "<placeholder or erroneous Constant>";
646 /// WriteAsOperand - Write the name of the specified value out to the specified
647 /// ostream. This can be useful when you just want to print int %reg126, not
648 /// the whole instruction that generated it.
650 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
651 std::map<const Type*, std::string> &TypeTable,
652 SlotMachine *Machine) {
655 Out << getLLVMName(V->getName(),
656 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
658 const Constant *CV = dyn_cast<Constant>(V);
659 if (CV && !isa<GlobalValue>(CV)) {
660 WriteConstantInt(Out, CV, TypeTable, Machine);
661 } else if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
663 if (IA->hasSideEffects())
664 Out << "sideeffect ";
666 PrintEscapedString(IA->getAsmString(), Out);
668 PrintEscapedString(IA->getConstraintString(), Out);
674 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
675 Slot = Machine->getGlobalSlot(GV);
678 Slot = Machine->getLocalSlot(V);
681 Machine = createSlotMachine(V);
683 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
684 Slot = Machine->getGlobalSlot(GV);
687 Slot = Machine->getLocalSlot(V);
695 Out << Prefix << Slot;
702 /// WriteAsOperand - Write the name of the specified value out to the specified
703 /// ostream. This can be useful when you just want to print int %reg126, not
704 /// the whole instruction that generated it.
706 std::ostream &llvm::WriteAsOperand(std::ostream &Out, const Value *V,
707 bool PrintType, const Module *Context) {
708 std::map<const Type *, std::string> TypeNames;
709 if (Context == 0) Context = getModuleFromVal(V);
712 fillTypeNameTable(Context, TypeNames);
715 printTypeInt(Out, V->getType(), TypeNames);
717 WriteAsOperandInternal(Out, V, TypeNames, 0);
724 class AssemblyWriter {
726 SlotMachine &Machine;
727 const Module *TheModule;
728 std::map<const Type *, std::string> TypeNames;
729 AssemblyAnnotationWriter *AnnotationWriter;
731 inline AssemblyWriter(std::ostream &o, SlotMachine &Mac, const Module *M,
732 AssemblyAnnotationWriter *AAW)
733 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
735 // If the module has a symbol table, take all global types and stuff their
736 // names into the TypeNames map.
738 fillTypeNameTable(M, TypeNames);
741 inline void write(const Module *M) { printModule(M); }
742 inline void write(const GlobalVariable *G) { printGlobal(G); }
743 inline void write(const GlobalAlias *G) { printAlias(G); }
744 inline void write(const Function *F) { printFunction(F); }
745 inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
746 inline void write(const Instruction *I) { printInstruction(*I); }
747 inline void write(const Type *Ty) { printType(Ty); }
749 void writeOperand(const Value *Op, bool PrintType);
751 const Module* getModule() { return TheModule; }
754 void printModule(const Module *M);
755 void printTypeSymbolTable(const TypeSymbolTable &ST);
756 void printGlobal(const GlobalVariable *GV);
757 void printAlias(const GlobalAlias *GV);
758 void printFunction(const Function *F);
759 void printArgument(const Argument *FA, uint16_t ParamAttrs);
760 void printBasicBlock(const BasicBlock *BB);
761 void printInstruction(const Instruction &I);
763 // printType - Go to extreme measures to attempt to print out a short,
764 // symbolic version of a type name.
766 std::ostream &printType(const Type *Ty) {
767 return printTypeInt(Out, Ty, TypeNames);
770 // printTypeAtLeastOneLevel - Print out one level of the possibly complex type
771 // without considering any symbolic types that we may have equal to it.
773 std::ostream &printTypeAtLeastOneLevel(const Type *Ty);
775 // printInfoComment - Print a little comment after the instruction indicating
776 // which slot it occupies.
777 void printInfoComment(const Value &V);
779 } // end of llvm namespace
781 /// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
782 /// without considering any symbolic types that we may have equal to it.
784 std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
785 if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
786 Out << "i" << utostr(ITy->getBitWidth());
787 else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
788 printType(FTy->getReturnType());
791 const ParamAttrsList *Attrs = FTy->getParamAttrs();
792 for (FunctionType::param_iterator I = FTy->param_begin(),
793 E = FTy->param_end(); I != E; ++I) {
794 if (I != FTy->param_begin())
797 if (Attrs && Attrs->getParamAttrs(Idx) != ParamAttr::None) {
798 Out << " " << Attrs->getParamAttrsTextByIndex(Idx);
802 if (FTy->isVarArg()) {
803 if (FTy->getNumParams()) Out << ", ";
807 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None)
808 Out << ' ' << Attrs->getParamAttrsTextByIndex(0);
809 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
813 for (StructType::element_iterator I = STy->element_begin(),
814 E = STy->element_end(); I != E; ++I) {
815 if (I != STy->element_begin())
822 } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
823 printType(PTy->getElementType()) << '*';
824 } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
825 Out << '[' << ATy->getNumElements() << " x ";
826 printType(ATy->getElementType()) << ']';
827 } else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
828 Out << '<' << PTy->getNumElements() << " x ";
829 printType(PTy->getElementType()) << '>';
831 else if (isa<OpaqueType>(Ty)) {
834 if (!Ty->isPrimitiveType())
835 Out << "<unknown derived type>";
842 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
844 Out << "<null operand!>";
846 if (PrintType) { Out << ' '; printType(Operand->getType()); }
847 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
852 void AssemblyWriter::printModule(const Module *M) {
853 if (!M->getModuleIdentifier().empty() &&
854 // Don't print the ID if it will start a new line (which would
855 // require a comment char before it).
856 M->getModuleIdentifier().find('\n') == std::string::npos)
857 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
859 if (!M->getDataLayout().empty())
860 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
861 if (!M->getTargetTriple().empty())
862 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
864 if (!M->getModuleInlineAsm().empty()) {
865 // Split the string into lines, to make it easier to read the .ll file.
866 std::string Asm = M->getModuleInlineAsm();
868 size_t NewLine = Asm.find_first_of('\n', CurPos);
869 while (NewLine != std::string::npos) {
870 // We found a newline, print the portion of the asm string from the
871 // last newline up to this newline.
872 Out << "module asm \"";
873 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
877 NewLine = Asm.find_first_of('\n', CurPos);
879 Out << "module asm \"";
880 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
884 // Loop over the dependent libraries and emit them.
885 Module::lib_iterator LI = M->lib_begin();
886 Module::lib_iterator LE = M->lib_end();
888 Out << "deplibs = [ ";
890 Out << '"' << *LI << '"';
898 // Loop over the symbol table, emitting all named constants.
899 printTypeSymbolTable(M->getTypeSymbolTable());
901 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
905 // Output all aliases.
906 if (!M->alias_empty()) Out << "\n";
907 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
911 // Output all of the functions.
912 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
916 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
917 if (GV->hasName()) Out << getLLVMName(GV->getName(), GlobalPrefix) << " = ";
919 if (!GV->hasInitializer())
920 switch (GV->getLinkage()) {
921 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
922 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
923 default: Out << "external "; break;
925 switch (GV->getLinkage()) {
926 case GlobalValue::InternalLinkage: Out << "internal "; break;
927 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
928 case GlobalValue::WeakLinkage: Out << "weak "; break;
929 case GlobalValue::AppendingLinkage: Out << "appending "; break;
930 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
931 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
932 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
933 case GlobalValue::ExternalLinkage: break;
934 case GlobalValue::GhostLinkage:
935 cerr << "GhostLinkage not allowed in AsmWriter!\n";
938 switch (GV->getVisibility()) {
939 default: assert(0 && "Invalid visibility style!");
940 case GlobalValue::DefaultVisibility: break;
941 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
942 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
946 if (GV->isThreadLocal()) Out << "thread_local ";
947 Out << (GV->isConstant() ? "constant " : "global ");
948 printType(GV->getType()->getElementType());
950 if (GV->hasInitializer()) {
951 Constant* C = cast<Constant>(GV->getInitializer());
952 assert(C && "GlobalVar initializer isn't constant?");
953 writeOperand(GV->getInitializer(), false);
956 if (GV->hasSection())
957 Out << ", section \"" << GV->getSection() << '"';
958 if (GV->getAlignment())
959 Out << ", align " << GV->getAlignment();
961 printInfoComment(*GV);
965 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
966 Out << getLLVMName(GA->getName(), GlobalPrefix) << " = ";
967 switch (GA->getVisibility()) {
968 default: assert(0 && "Invalid visibility style!");
969 case GlobalValue::DefaultVisibility: break;
970 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
971 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
976 switch (GA->getLinkage()) {
977 case GlobalValue::WeakLinkage: Out << "weak "; break;
978 case GlobalValue::InternalLinkage: Out << "internal "; break;
979 case GlobalValue::ExternalLinkage: break;
981 assert(0 && "Invalid alias linkage");
984 const Constant *Aliasee = GA->getAliasee();
986 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
987 printType(GV->getType());
988 Out << " " << getLLVMName(GV->getName(), GlobalPrefix);
989 } else if (const Function *F = dyn_cast<Function>(Aliasee)) {
990 printType(F->getFunctionType());
993 if (!F->getName().empty())
994 Out << getLLVMName(F->getName(), GlobalPrefix);
998 const ConstantExpr *CE = 0;
999 if ((CE = dyn_cast<ConstantExpr>(Aliasee)) &&
1000 (CE->getOpcode() == Instruction::BitCast)) {
1001 writeOperand(CE, false);
1003 assert(0 && "Unsupported aliasee");
1006 printInfoComment(*GA);
1010 void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
1012 for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
1014 Out << "\t" << getLLVMName(TI->first, LocalPrefix) << " = type ";
1016 // Make sure we print out at least one level of the type structure, so
1017 // that we do not get %FILE = type %FILE
1019 printTypeAtLeastOneLevel(TI->second) << "\n";
1023 /// printFunction - Print all aspects of a function.
1025 void AssemblyWriter::printFunction(const Function *F) {
1026 // Print out the return type and name...
1029 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1031 if (F->isDeclaration())
1036 switch (F->getLinkage()) {
1037 case GlobalValue::InternalLinkage: Out << "internal "; break;
1038 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
1039 case GlobalValue::WeakLinkage: Out << "weak "; break;
1040 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1041 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1042 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1043 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1044 case GlobalValue::ExternalLinkage: break;
1045 case GlobalValue::GhostLinkage:
1046 cerr << "GhostLinkage not allowed in AsmWriter!\n";
1049 switch (F->getVisibility()) {
1050 default: assert(0 && "Invalid visibility style!");
1051 case GlobalValue::DefaultVisibility: break;
1052 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1053 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1056 // Print the calling convention.
1057 switch (F->getCallingConv()) {
1058 case CallingConv::C: break; // default
1059 case CallingConv::Fast: Out << "fastcc "; break;
1060 case CallingConv::Cold: Out << "coldcc "; break;
1061 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1062 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1063 default: Out << "cc" << F->getCallingConv() << " "; break;
1066 const FunctionType *FT = F->getFunctionType();
1067 const ParamAttrsList *Attrs = FT->getParamAttrs();
1068 printType(F->getReturnType()) << ' ';
1069 if (!F->getName().empty())
1070 Out << getLLVMName(F->getName(), GlobalPrefix);
1074 Machine.incorporateFunction(F);
1076 // Loop over the arguments, printing them...
1079 if (!F->isDeclaration()) {
1080 // If this isn't a declaration, print the argument names as well.
1081 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1083 // Insert commas as we go... the first arg doesn't get a comma
1084 if (I != F->arg_begin()) Out << ", ";
1085 printArgument(I, (Attrs ? Attrs->getParamAttrs(Idx)
1086 : uint16_t(ParamAttr::None)));
1090 // Otherwise, print the types from the function type.
1091 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1092 // Insert commas as we go... the first arg doesn't get a comma
1096 printType(FT->getParamType(i));
1098 unsigned ArgAttrs = ParamAttr::None;
1099 if (Attrs) ArgAttrs = Attrs->getParamAttrs(i+1);
1100 if (ArgAttrs != ParamAttr::None)
1101 Out << ' ' << ParamAttrsList::getParamAttrsText(ArgAttrs);
1105 // Finish printing arguments...
1106 if (FT->isVarArg()) {
1107 if (FT->getNumParams()) Out << ", ";
1108 Out << "..."; // Output varargs portion of signature!
1111 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None)
1112 Out << ' ' << Attrs->getParamAttrsTextByIndex(0);
1113 if (F->hasSection())
1114 Out << " section \"" << F->getSection() << '"';
1115 if (F->getAlignment())
1116 Out << " align " << F->getAlignment();
1118 if (F->isDeclaration()) {
1123 // Output all of its basic blocks... for the function
1124 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1130 Machine.purgeFunction();
1133 /// printArgument - This member is called for every argument that is passed into
1134 /// the function. Simply print it out
1136 void AssemblyWriter::printArgument(const Argument *Arg, uint16_t Attrs) {
1138 printType(Arg->getType());
1140 if (Attrs != ParamAttr::None)
1141 Out << ' ' << ParamAttrsList::getParamAttrsText(Attrs);
1143 // Output name, if available...
1145 Out << ' ' << getLLVMName(Arg->getName(), LocalPrefix);
1148 /// printBasicBlock - This member is called for each basic block in a method.
1150 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1151 if (BB->hasName()) { // Print out the label if it exists...
1152 Out << "\n" << getLLVMName(BB->getName(), LabelPrefix) << ':';
1153 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1154 Out << "\n; <label>:";
1155 int Slot = Machine.getLocalSlot(BB);
1162 if (BB->getParent() == 0)
1163 Out << "\t\t; Error: Block without parent!";
1165 if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1166 // Output predecessors for the block...
1168 pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
1171 Out << " No predecessors!";
1174 writeOperand(*PI, false);
1175 for (++PI; PI != PE; ++PI) {
1177 writeOperand(*PI, false);
1185 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1187 // Output all of the instructions in the basic block...
1188 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1189 printInstruction(*I);
1191 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1195 /// printInfoComment - Print a little comment after the instruction indicating
1196 /// which slot it occupies.
1198 void AssemblyWriter::printInfoComment(const Value &V) {
1199 if (V.getType() != Type::VoidTy) {
1201 printType(V.getType()) << '>';
1205 if (const GlobalValue *GV = dyn_cast<GlobalValue>(&V))
1206 SlotNum = Machine.getGlobalSlot(GV);
1208 SlotNum = Machine.getLocalSlot(&V);
1212 Out << ':' << SlotNum; // Print out the def slot taken.
1214 Out << " [#uses=" << V.getNumUses() << ']'; // Output # uses
1218 // This member is called for each Instruction in a function..
1219 void AssemblyWriter::printInstruction(const Instruction &I) {
1220 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1224 // Print out name if it exists...
1226 Out << getLLVMName(I.getName(), LocalPrefix) << " = ";
1228 // If this is a volatile load or store, print out the volatile marker.
1229 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1230 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
1232 } else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
1233 // If this is a call, check if it's a tail call.
1237 // Print out the opcode...
1238 Out << I.getOpcodeName();
1240 // Print out the compare instruction predicates
1241 if (const FCmpInst *FCI = dyn_cast<FCmpInst>(&I)) {
1242 Out << " " << getPredicateText(FCI->getPredicate());
1243 } else if (const ICmpInst *ICI = dyn_cast<ICmpInst>(&I)) {
1244 Out << " " << getPredicateText(ICI->getPredicate());
1247 // Print out the type of the operands...
1248 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1250 // Special case conditional branches to swizzle the condition out to the front
1251 if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
1252 writeOperand(I.getOperand(2), true);
1254 writeOperand(Operand, true);
1256 writeOperand(I.getOperand(1), true);
1258 } else if (isa<SwitchInst>(I)) {
1259 // Special case switch statement to get formatting nice and correct...
1260 writeOperand(Operand , true); Out << ',';
1261 writeOperand(I.getOperand(1), true); Out << " [";
1263 for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
1265 writeOperand(I.getOperand(op ), true); Out << ',';
1266 writeOperand(I.getOperand(op+1), true);
1269 } else if (isa<PHINode>(I)) {
1271 printType(I.getType());
1274 for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
1275 if (op) Out << ", ";
1277 writeOperand(I.getOperand(op ), false); Out << ',';
1278 writeOperand(I.getOperand(op+1), false); Out << " ]";
1280 } else if (isa<ReturnInst>(I) && !Operand) {
1282 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1283 // Print the calling convention being used.
1284 switch (CI->getCallingConv()) {
1285 case CallingConv::C: break; // default
1286 case CallingConv::Fast: Out << " fastcc"; break;
1287 case CallingConv::Cold: Out << " coldcc"; break;
1288 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1289 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1290 default: Out << " cc" << CI->getCallingConv(); break;
1293 const PointerType *PTy = cast<PointerType>(Operand->getType());
1294 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1295 const Type *RetTy = FTy->getReturnType();
1296 const ParamAttrsList *PAL = FTy->getParamAttrs();
1298 // If possible, print out the short form of the call instruction. We can
1299 // only do this if the first argument is a pointer to a nonvararg function,
1300 // and if the return type is not a pointer to a function.
1302 if (!FTy->isVarArg() &&
1303 (!isa<PointerType>(RetTy) ||
1304 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1305 Out << ' '; printType(RetTy);
1306 writeOperand(Operand, false);
1308 writeOperand(Operand, true);
1311 for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
1314 writeOperand(I.getOperand(op), true);
1315 if (PAL && PAL->getParamAttrs(op) != ParamAttr::None)
1316 Out << " " << PAL->getParamAttrsTextByIndex(op);
1319 if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
1320 Out << ' ' << PAL->getParamAttrsTextByIndex(0);
1321 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1322 const PointerType *PTy = cast<PointerType>(Operand->getType());
1323 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1324 const Type *RetTy = FTy->getReturnType();
1325 const ParamAttrsList *PAL = FTy->getParamAttrs();
1327 // Print the calling convention being used.
1328 switch (II->getCallingConv()) {
1329 case CallingConv::C: break; // default
1330 case CallingConv::Fast: Out << " fastcc"; break;
1331 case CallingConv::Cold: Out << " coldcc"; break;
1332 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1333 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1334 default: Out << " cc" << II->getCallingConv(); break;
1337 // If possible, print out the short form of the invoke instruction. We can
1338 // only do this if the first argument is a pointer to a nonvararg function,
1339 // and if the return type is not a pointer to a function.
1341 if (!FTy->isVarArg() &&
1342 (!isa<PointerType>(RetTy) ||
1343 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1344 Out << ' '; printType(RetTy);
1345 writeOperand(Operand, false);
1347 writeOperand(Operand, true);
1351 for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
1354 writeOperand(I.getOperand(op), true);
1355 if (PAL && PAL->getParamAttrs(op-2) != ParamAttr::None)
1356 Out << " " << PAL->getParamAttrsTextByIndex(op-2);
1360 if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
1361 Out << " " << PAL->getParamAttrsTextByIndex(0);
1362 Out << "\n\t\t\tto";
1363 writeOperand(II->getNormalDest(), true);
1365 writeOperand(II->getUnwindDest(), true);
1367 } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
1369 printType(AI->getType()->getElementType());
1370 if (AI->isArrayAllocation()) {
1372 writeOperand(AI->getArraySize(), true);
1374 if (AI->getAlignment()) {
1375 Out << ", align " << AI->getAlignment();
1377 } else if (isa<CastInst>(I)) {
1378 if (Operand) writeOperand(Operand, true); // Work with broken code
1380 printType(I.getType());
1381 } else if (isa<VAArgInst>(I)) {
1382 if (Operand) writeOperand(Operand, true); // Work with broken code
1384 printType(I.getType());
1385 } else if (Operand) { // Print the normal way...
1387 // PrintAllTypes - Instructions who have operands of all the same type
1388 // omit the type from all but the first operand. If the instruction has
1389 // different type operands (for example br), then they are all printed.
1390 bool PrintAllTypes = false;
1391 const Type *TheType = Operand->getType();
1393 // Select, Store and ShuffleVector always print all types.
1394 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)) {
1395 PrintAllTypes = true;
1397 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
1398 Operand = I.getOperand(i);
1399 if (Operand->getType() != TheType) {
1400 PrintAllTypes = true; // We have differing types! Print them all!
1406 if (!PrintAllTypes) {
1411 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
1413 writeOperand(I.getOperand(i), PrintAllTypes);
1417 // Print post operand alignment for load/store
1418 if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
1419 Out << ", align " << cast<LoadInst>(I).getAlignment();
1420 } else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
1421 Out << ", align " << cast<StoreInst>(I).getAlignment();
1424 printInfoComment(I);
1429 //===----------------------------------------------------------------------===//
1430 // External Interface declarations
1431 //===----------------------------------------------------------------------===//
1433 void Module::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1434 SlotMachine SlotTable(this);
1435 AssemblyWriter W(o, SlotTable, this, AAW);
1439 void GlobalVariable::print(std::ostream &o) const {
1440 SlotMachine SlotTable(getParent());
1441 AssemblyWriter W(o, SlotTable, getParent(), 0);
1445 void GlobalAlias::print(std::ostream &o) const {
1446 SlotMachine SlotTable(getParent());
1447 AssemblyWriter W(o, SlotTable, getParent(), 0);
1451 void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1452 SlotMachine SlotTable(getParent());
1453 AssemblyWriter W(o, SlotTable, getParent(), AAW);
1458 void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1459 WriteAsOperand(o, this, true, 0);
1462 void BasicBlock::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1463 SlotMachine SlotTable(getParent());
1464 AssemblyWriter W(o, SlotTable,
1465 getParent() ? getParent()->getParent() : 0, AAW);
1469 void Instruction::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1470 const Function *F = getParent() ? getParent()->getParent() : 0;
1471 SlotMachine SlotTable(F);
1472 AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0, AAW);
1477 void Constant::print(std::ostream &o) const {
1478 if (this == 0) { o << "<null> constant value\n"; return; }
1480 o << ' ' << getType()->getDescription() << ' ';
1482 std::map<const Type *, std::string> TypeTable;
1483 WriteConstantInt(o, this, TypeTable, 0);
1486 void Type::print(std::ostream &o) const {
1490 o << getDescription();
1493 void Argument::print(std::ostream &o) const {
1494 WriteAsOperand(o, this, true, getParent() ? getParent()->getParent() : 0);
1497 // Value::dump - allow easy printing of Values from the debugger.
1498 // Located here because so much of the needed functionality is here.
1499 void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
1501 // Type::dump - allow easy printing of Values from the debugger.
1502 // Located here because so much of the needed functionality is here.
1503 void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }
1506 ParamAttrsList::dump() const {
1508 for (unsigned i = 0; i < attrs.size(); ++i) {
1509 uint16_t index = getParamIndex(i);
1510 uint16_t attrs = getParamAttrs(index);
1511 cerr << "{" << index << "," << attrs << "} ";
1516 //===----------------------------------------------------------------------===//
1517 // SlotMachine Implementation
1518 //===----------------------------------------------------------------------===//
1521 #define SC_DEBUG(X) cerr << X
1526 // Module level constructor. Causes the contents of the Module (sans functions)
1527 // to be added to the slot table.
1528 SlotMachine::SlotMachine(const Module *M)
1529 : TheModule(M) ///< Saved for lazy initialization.
1531 , FunctionProcessed(false)
1532 , mMap(), mNext(0), fMap(), fNext(0)
1536 // Function level constructor. Causes the contents of the Module and the one
1537 // function provided to be added to the slot table.
1538 SlotMachine::SlotMachine(const Function *F)
1539 : TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
1540 , TheFunction(F) ///< Saved for lazy initialization
1541 , FunctionProcessed(false)
1542 , mMap(), mNext(0), fMap(), fNext(0)
1546 inline void SlotMachine::initialize() {
1549 TheModule = 0; ///< Prevent re-processing next time we're called.
1551 if (TheFunction && !FunctionProcessed)
1555 // Iterate through all the global variables, functions, and global
1556 // variable initializers and create slots for them.
1557 void SlotMachine::processModule() {
1558 SC_DEBUG("begin processModule!\n");
1560 // Add all of the unnamed global variables to the value table.
1561 for (Module::const_global_iterator I = TheModule->global_begin(),
1562 E = TheModule->global_end(); I != E; ++I)
1564 CreateModuleSlot(I);
1566 // Add all the unnamed functions to the table.
1567 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1570 CreateModuleSlot(I);
1572 SC_DEBUG("end processModule!\n");
1576 // Process the arguments, basic blocks, and instructions of a function.
1577 void SlotMachine::processFunction() {
1578 SC_DEBUG("begin processFunction!\n");
1581 // Add all the function arguments with no names.
1582 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
1583 AE = TheFunction->arg_end(); AI != AE; ++AI)
1585 CreateFunctionSlot(AI);
1587 SC_DEBUG("Inserting Instructions:\n");
1589 // Add all of the basic blocks and instructions with no names.
1590 for (Function::const_iterator BB = TheFunction->begin(),
1591 E = TheFunction->end(); BB != E; ++BB) {
1593 CreateFunctionSlot(BB);
1594 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1595 if (I->getType() != Type::VoidTy && !I->hasName())
1596 CreateFunctionSlot(I);
1599 FunctionProcessed = true;
1601 SC_DEBUG("end processFunction!\n");
1604 /// Clean up after incorporating a function. This is the only way to get out of
1605 /// the function incorporation state that affects get*Slot/Create*Slot. Function
1606 /// incorporation state is indicated by TheFunction != 0.
1607 void SlotMachine::purgeFunction() {
1608 SC_DEBUG("begin purgeFunction!\n");
1609 fMap.clear(); // Simply discard the function level map
1611 FunctionProcessed = false;
1612 SC_DEBUG("end purgeFunction!\n");
1615 /// getGlobalSlot - Get the slot number of a global value.
1616 int SlotMachine::getGlobalSlot(const GlobalValue *V) {
1617 // Check for uninitialized state and do lazy initialization.
1620 // Find the type plane in the module map
1621 ValueMap::const_iterator MI = mMap.find(V);
1622 if (MI == mMap.end()) return -1;
1628 /// getLocalSlot - Get the slot number for a value that is local to a function.
1629 int SlotMachine::getLocalSlot(const Value *V) {
1630 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
1632 // Check for uninitialized state and do lazy initialization.
1635 ValueMap::const_iterator FI = fMap.find(V);
1636 if (FI == fMap.end()) return -1;
1642 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
1643 void SlotMachine::CreateModuleSlot(const GlobalValue *V) {
1644 assert(V && "Can't insert a null Value into SlotMachine!");
1645 assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
1646 assert(!V->hasName() && "Doesn't need a slot!");
1648 unsigned DestSlot = mNext++;
1651 SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
1653 // G = Global, F = Function, A = Alias, o = other
1654 SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
1655 (isa<Function> ? 'F' :
1656 (isa<GlobalAlias> ? 'A' : 'o'))) << "]\n");
1660 /// CreateSlot - Create a new slot for the specified value if it has no name.
1661 void SlotMachine::CreateFunctionSlot(const Value *V) {
1662 const Type *VTy = V->getType();
1663 assert(VTy != Type::VoidTy && !V->hasName() && "Doesn't need a slot!");
1665 unsigned DestSlot = fNext++;
1668 // G = Global, F = Function, o = other
1669 SC_DEBUG(" Inserting value [" << VTy << "] = " << V << " slot=" <<
1670 DestSlot << " [o]\n");