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/StringExtras.h"
30 #include "llvm/ADT/STLExtras.h"
31 #include "llvm/Support/CFG.h"
32 #include "llvm/Support/MathExtras.h"
33 #include "llvm/Support/Streams.h"
34 #include "llvm/Support/raw_ostream.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.
48 /// ValueMap - A mapping of Values to slot numbers
49 typedef std::map<const Value*, unsigned> ValueMap;
52 /// TheModule - The module for which we are holding slot numbers
53 const Module* TheModule;
55 /// TheFunction - The function for which we are holding slot numbers
56 const Function* TheFunction;
57 bool FunctionProcessed;
59 /// mMap - The TypePlanes map for the module level data
63 /// fMap - The TypePlanes map for the function level data
68 /// Construct from a module
69 explicit SlotMachine(const Module *M);
70 /// Construct from a function, starting out in incorp state.
71 explicit SlotMachine(const Function *F);
73 /// Return the slot number of the specified value in it's type
74 /// plane. If something is not in the SlotMachine, return -1.
75 int getLocalSlot(const Value *V);
76 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.
90 // Implementation Details
92 /// This function does the actual initialization.
93 inline void initialize();
95 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
96 void CreateModuleSlot(const GlobalValue *V);
98 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
99 void CreateFunctionSlot(const Value *V);
101 /// Add all of the module level global variables (and their initializers)
102 /// and function declarations, but not the contents of those functions.
103 void processModule();
105 /// Add all of the functions arguments, basic blocks, and instructions
106 void processFunction();
108 SlotMachine(const SlotMachine &); // DO NOT IMPLEMENT
109 void operator=(const SlotMachine &); // DO NOT IMPLEMENT
112 } // end namespace llvm
114 char PrintModulePass::ID = 0;
115 static RegisterPass<PrintModulePass>
116 X("printm", "Print module to stderr");
117 char PrintFunctionPass::ID = 0;
118 static RegisterPass<PrintFunctionPass>
119 Y("print","Print function to stderr");
121 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
122 std::map<const Type *, std::string> &TypeTable,
123 SlotMachine *Machine);
125 static const Module *getModuleFromVal(const Value *V) {
126 if (const Argument *MA = dyn_cast<Argument>(V))
127 return MA->getParent() ? MA->getParent()->getParent() : 0;
128 else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
129 return BB->getParent() ? BB->getParent()->getParent() : 0;
130 else if (const Instruction *I = dyn_cast<Instruction>(V)) {
131 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
132 return M ? M->getParent() : 0;
133 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
134 return GV->getParent();
138 static SlotMachine *createSlotMachine(const Value *V) {
139 if (const Argument *FA = dyn_cast<Argument>(V)) {
140 return new SlotMachine(FA->getParent());
141 } else if (const Instruction *I = dyn_cast<Instruction>(V)) {
142 return new SlotMachine(I->getParent()->getParent());
143 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
144 return new SlotMachine(BB->getParent());
145 } else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)){
146 return new SlotMachine(GV->getParent());
147 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V)){
148 return new SlotMachine(GA->getParent());
149 } else if (const Function *Func = dyn_cast<Function>(V)) {
150 return new SlotMachine(Func);
155 /// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
157 static std::string QuoteNameIfNeeded(const std::string &Name) {
159 bool needsQuotes = Name[0] >= '0' && Name[0] <= '9';
160 // Scan the name to see if it needs quotes and to replace funky chars with
161 // their octal equivalent.
162 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
164 assert(C != '"' && "Illegal character in LLVM value name!");
165 if (isalnum(C) || C == '-' || C == '.' || C == '_')
167 else if (C == '\\') {
170 } else if (isprint(C)) {
176 char hex1 = (C >> 4) & 0x0F;
178 result += hex1 + '0';
180 result += hex1 - 10 + 'A';
181 char hex2 = C & 0x0F;
183 result += hex2 + '0';
185 result += hex2 - 10 + 'A';
189 result.insert(0,"\"");
201 /// getLLVMName - Turn the specified string into an 'LLVM name', which is either
202 /// prefixed with % (if the string only contains simple characters) or is
203 /// surrounded with ""'s (if it has special chars in it).
204 static std::string getLLVMName(const std::string &Name, PrefixType Prefix) {
205 assert(!Name.empty() && "Cannot get empty name!");
207 default: assert(0 && "Bad prefix!");
208 case GlobalPrefix: return '@' + QuoteNameIfNeeded(Name);
209 case LabelPrefix: return QuoteNameIfNeeded(Name);
210 case LocalPrefix: return '%' + QuoteNameIfNeeded(Name);
214 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
215 /// prefixed with % (if the string only contains simple characters) or is
216 /// surrounded with ""'s (if it has special chars in it). Print it out.
217 static void PrintLLVMName(std::ostream &OS, const ValueName *Name,
219 assert(Name && "Cannot get empty name!");
221 default: assert(0 && "Bad prefix!");
222 case GlobalPrefix: OS << '@'; break;
223 case LabelPrefix: break;
224 case LocalPrefix: OS << '%'; break;
227 // Scan the name to see if it needs quotes first.
228 const char *NameStr = Name->getKeyData();
229 unsigned NameLen = Name->getKeyLength();
231 bool NeedsQuotes = NameStr[0] >= '0' && NameStr[0] <= '9';
233 for (unsigned i = 0; i != NameLen; ++i) {
235 if (!isalnum(C) && C != '-' && C != '.' && C != '_') {
242 // If we didn't need any quotes, just write out the name in one blast.
244 OS.write(NameStr, NameLen);
248 // Okay, we need quotes. Output the quotes and escape any scary characters as
251 for (unsigned i = 0; i != NameLen; ++i) {
253 assert(C != '"' && "Illegal character in LLVM value name!");
256 } else if (isprint(C)) {
260 char hex1 = (C >> 4) & 0x0F;
264 OS << (hex1 - 10 + 'A');
265 char hex2 = C & 0x0F;
269 OS << (hex2 - 10 + 'A');
275 static void PrintLLVMName(std::ostream &OS, const Value *V) {
276 PrintLLVMName(OS, V->getValueName(),
277 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
281 /// fillTypeNameTable - If the module has a symbol table, take all global types
282 /// and stuff their names into the TypeNames map.
284 static void fillTypeNameTable(const Module *M,
285 std::map<const Type *, std::string> &TypeNames) {
287 const TypeSymbolTable &ST = M->getTypeSymbolTable();
288 TypeSymbolTable::const_iterator TI = ST.begin();
289 for (; TI != ST.end(); ++TI) {
290 // As a heuristic, don't insert pointer to primitive types, because
291 // they are used too often to have a single useful name.
293 const Type *Ty = cast<Type>(TI->second);
294 if (!isa<PointerType>(Ty) ||
295 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType() ||
296 !cast<PointerType>(Ty)->getElementType()->isInteger() ||
297 isa<OpaqueType>(cast<PointerType>(Ty)->getElementType()))
298 TypeNames.insert(std::make_pair(Ty, getLLVMName(TI->first, LocalPrefix)));
304 static void calcTypeName(const Type *Ty,
305 std::vector<const Type *> &TypeStack,
306 std::map<const Type *, std::string> &TypeNames,
307 std::string & Result){
308 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty))) {
309 Result += Ty->getDescription(); // Base case
313 // Check to see if the type is named.
314 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
315 if (I != TypeNames.end()) {
320 if (isa<OpaqueType>(Ty)) {
325 // Check to see if the Type is already on the stack...
326 unsigned Slot = 0, CurSize = TypeStack.size();
327 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
329 // This is another base case for the recursion. In this case, we know
330 // that we have looped back to a type that we have previously visited.
331 // Generate the appropriate upreference to handle this.
332 if (Slot < CurSize) {
333 Result += "\\" + utostr(CurSize-Slot); // Here's the upreference
337 TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
339 switch (Ty->getTypeID()) {
340 case Type::IntegerTyID: {
341 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
342 Result += "i" + utostr(BitWidth);
345 case Type::FunctionTyID: {
346 const FunctionType *FTy = cast<FunctionType>(Ty);
347 calcTypeName(FTy->getReturnType(), TypeStack, TypeNames, Result);
349 for (FunctionType::param_iterator I = FTy->param_begin(),
350 E = FTy->param_end(); I != E; ++I) {
351 if (I != FTy->param_begin())
353 calcTypeName(*I, TypeStack, TypeNames, Result);
355 if (FTy->isVarArg()) {
356 if (FTy->getNumParams()) Result += ", ";
362 case Type::StructTyID: {
363 const StructType *STy = cast<StructType>(Ty);
367 for (StructType::element_iterator I = STy->element_begin(),
368 E = STy->element_end(); I != E; ++I) {
369 if (I != STy->element_begin())
371 calcTypeName(*I, TypeStack, TypeNames, Result);
378 case Type::PointerTyID: {
379 const PointerType *PTy = cast<PointerType>(Ty);
380 calcTypeName(PTy->getElementType(),
381 TypeStack, TypeNames, Result);
382 if (unsigned AddressSpace = PTy->getAddressSpace())
383 Result += " addrspace(" + utostr(AddressSpace) + ")";
387 case Type::ArrayTyID: {
388 const ArrayType *ATy = cast<ArrayType>(Ty);
389 Result += "[" + utostr(ATy->getNumElements()) + " x ";
390 calcTypeName(ATy->getElementType(), TypeStack, TypeNames, Result);
394 case Type::VectorTyID: {
395 const VectorType *PTy = cast<VectorType>(Ty);
396 Result += "<" + utostr(PTy->getNumElements()) + " x ";
397 calcTypeName(PTy->getElementType(), TypeStack, TypeNames, Result);
401 case Type::OpaqueTyID:
405 Result += "<unrecognized-type>";
409 TypeStack.pop_back(); // Remove self from stack...
413 /// printTypeInt - The internal guts of printing out a type that has a
414 /// potentially named portion.
416 static std::ostream &printTypeInt(std::ostream &Out, const Type *Ty,
417 std::map<const Type *, std::string> &TypeNames) {
418 // Primitive types always print out their description, regardless of whether
419 // they have been named or not.
421 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty)))
422 return Out << Ty->getDescription();
424 // Check to see if the type is named.
425 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
426 if (I != TypeNames.end()) return Out << I->second;
428 // Otherwise we have a type that has not been named but is a derived type.
429 // Carefully recurse the type hierarchy to print out any contained symbolic
432 std::vector<const Type *> TypeStack;
433 std::string TypeName;
434 calcTypeName(Ty, TypeStack, TypeNames, TypeName);
435 TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
436 return (Out << TypeName);
440 /// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
441 /// type, iff there is an entry in the modules symbol table for the specified
442 /// type or one of it's component types. This is slower than a simple x << Type
444 std::ostream &llvm::WriteTypeSymbolic(std::ostream &Out, const Type *Ty,
448 // If they want us to print out a type, but there is no context, we can't
449 // print it symbolically.
451 return Out << Ty->getDescription();
453 std::map<const Type *, std::string> TypeNames;
454 fillTypeNameTable(M, TypeNames);
455 return printTypeInt(Out, Ty, TypeNames);
458 // PrintEscapedString - Print each character of the specified string, escaping
459 // it if it is not printable or if it is an escape char.
460 static void PrintEscapedString(const std::string &Str, std::ostream &Out) {
461 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
462 unsigned char C = Str[i];
463 if (isprint(C) && C != '"' && C != '\\') {
467 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
468 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
473 static const char *getPredicateText(unsigned predicate) {
474 const char * pred = "unknown";
476 case FCmpInst::FCMP_FALSE: pred = "false"; break;
477 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
478 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
479 case FCmpInst::FCMP_OGE: pred = "oge"; break;
480 case FCmpInst::FCMP_OLT: pred = "olt"; break;
481 case FCmpInst::FCMP_OLE: pred = "ole"; break;
482 case FCmpInst::FCMP_ONE: pred = "one"; break;
483 case FCmpInst::FCMP_ORD: pred = "ord"; break;
484 case FCmpInst::FCMP_UNO: pred = "uno"; break;
485 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
486 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
487 case FCmpInst::FCMP_UGE: pred = "uge"; break;
488 case FCmpInst::FCMP_ULT: pred = "ult"; break;
489 case FCmpInst::FCMP_ULE: pred = "ule"; break;
490 case FCmpInst::FCMP_UNE: pred = "une"; break;
491 case FCmpInst::FCMP_TRUE: pred = "true"; break;
492 case ICmpInst::ICMP_EQ: pred = "eq"; break;
493 case ICmpInst::ICMP_NE: pred = "ne"; break;
494 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
495 case ICmpInst::ICMP_SGE: pred = "sge"; break;
496 case ICmpInst::ICMP_SLT: pred = "slt"; break;
497 case ICmpInst::ICMP_SLE: pred = "sle"; break;
498 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
499 case ICmpInst::ICMP_UGE: pred = "uge"; break;
500 case ICmpInst::ICMP_ULT: pred = "ult"; break;
501 case ICmpInst::ICMP_ULE: pred = "ule"; break;
506 static void WriteConstantInt(std::ostream &Out, const Constant *CV,
507 std::map<const Type *, std::string> &TypeTable,
508 SlotMachine *Machine) {
509 const int IndentSize = 4;
510 // FIXME: WHY IS INDENT STATIC??
511 static std::string Indent = "\n";
512 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
513 if (CI->getType() == Type::Int1Ty) {
514 Out << (CI->getZExtValue() ? "true" : "false");
517 Out << CI->getValue();
521 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
522 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble ||
523 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle) {
524 // We would like to output the FP constant value in exponential notation,
525 // but we cannot do this if doing so will lose precision. Check here to
526 // make sure that we only output it in exponential format if we can parse
527 // the value back and get the same value.
529 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
530 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
531 CFP->getValueAPF().convertToFloat();
532 std::string StrVal = ftostr(CFP->getValueAPF());
534 // Check to make sure that the stringized number is not some string like
535 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
536 // that the string matches the "[-+]?[0-9]" regex.
538 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
539 ((StrVal[0] == '-' || StrVal[0] == '+') &&
540 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
541 // Reparse stringized version!
542 if (atof(StrVal.c_str()) == Val) {
547 // Otherwise we could not reparse it to exactly the same value, so we must
548 // output the string in hexadecimal format!
549 assert(sizeof(double) == sizeof(uint64_t) &&
550 "assuming that double is 64 bits!");
551 Out << "0x" << utohexstr(DoubleToBits(Val));
553 // Some form of long double. These appear as a magic letter identifying
554 // the type, then a fixed number of hex digits.
556 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended)
558 else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad)
560 else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
563 assert(0 && "Unsupported floating point type");
564 // api needed to prevent premature destruction
565 APInt api = CFP->getValueAPF().convertToAPInt();
566 const uint64_t* p = api.getRawData();
569 int width = api.getBitWidth();
570 for (int j=0; j<width; j+=4, shiftcount-=4) {
571 unsigned int nibble = (word>>shiftcount) & 15;
573 Out << (unsigned char)(nibble + '0');
575 Out << (unsigned char)(nibble - 10 + 'A');
576 if (shiftcount == 0 && j+4 < width) {
580 shiftcount = width-j-4;
584 } else if (isa<ConstantAggregateZero>(CV)) {
585 Out << "zeroinitializer";
586 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
587 // As a special case, print the array as a string if it is an array of
588 // i8 with ConstantInt values.
590 const Type *ETy = CA->getType()->getElementType();
591 if (CA->isString()) {
593 PrintEscapedString(CA->getAsString(), Out);
596 } else { // Cannot output in string format...
598 if (CA->getNumOperands()) {
600 printTypeInt(Out, ETy, TypeTable);
601 WriteAsOperandInternal(Out, CA->getOperand(0),
603 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
605 printTypeInt(Out, ETy, TypeTable);
606 WriteAsOperandInternal(Out, CA->getOperand(i), TypeTable, Machine);
611 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
612 if (CS->getType()->isPacked())
615 unsigned N = CS->getNumOperands();
618 Indent += std::string(IndentSize, ' ');
623 printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
625 WriteAsOperandInternal(Out, CS->getOperand(0), TypeTable, Machine);
627 for (unsigned i = 1; i < N; i++) {
629 if (N > 2) Out << Indent;
630 printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
632 WriteAsOperandInternal(Out, CS->getOperand(i), TypeTable, Machine);
634 if (N > 2) Indent.resize(Indent.size() - IndentSize);
638 if (CS->getType()->isPacked())
640 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
641 const Type *ETy = CP->getType()->getElementType();
642 assert(CP->getNumOperands() > 0 &&
643 "Number of operands for a PackedConst must be > 0");
646 printTypeInt(Out, ETy, TypeTable);
647 WriteAsOperandInternal(Out, CP->getOperand(0), TypeTable, Machine);
648 for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
650 printTypeInt(Out, ETy, TypeTable);
651 WriteAsOperandInternal(Out, CP->getOperand(i), TypeTable, Machine);
654 } else if (isa<ConstantPointerNull>(CV)) {
657 } else if (isa<UndefValue>(CV)) {
660 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
661 Out << CE->getOpcodeName();
663 Out << " " << getPredicateText(CE->getPredicate());
666 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
667 printTypeInt(Out, (*OI)->getType(), TypeTable);
668 WriteAsOperandInternal(Out, *OI, TypeTable, Machine);
669 if (OI+1 != CE->op_end())
673 if (CE->hasIndices()) {
674 const SmallVector<unsigned, 4> &Indices = CE->getIndices();
675 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
676 Out << ", " << Indices[i];
681 printTypeInt(Out, CE->getType(), TypeTable);
687 Out << "<placeholder or erroneous Constant>";
692 /// WriteAsOperand - Write the name of the specified value out to the specified
693 /// ostream. This can be useful when you just want to print int %reg126, not
694 /// the whole instruction that generated it.
696 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
697 std::map<const Type*, std::string> &TypeTable,
698 SlotMachine *Machine) {
701 PrintLLVMName(Out, V);
705 const Constant *CV = dyn_cast<Constant>(V);
706 if (CV && !isa<GlobalValue>(CV)) {
707 WriteConstantInt(Out, CV, TypeTable, Machine);
708 } else if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
710 if (IA->hasSideEffects())
711 Out << "sideeffect ";
713 PrintEscapedString(IA->getAsmString(), Out);
715 PrintEscapedString(IA->getConstraintString(), Out);
721 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
722 Slot = Machine->getGlobalSlot(GV);
725 Slot = Machine->getLocalSlot(V);
728 Machine = createSlotMachine(V);
730 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
731 Slot = Machine->getGlobalSlot(GV);
734 Slot = Machine->getLocalSlot(V);
742 Out << Prefix << Slot;
748 /// WriteAsOperand - Write the name of the specified value out to the specified
749 /// ostream. This can be useful when you just want to print int %reg126, not
750 /// the whole instruction that generated it.
752 std::ostream &llvm::WriteAsOperand(std::ostream &Out, const Value *V,
753 bool PrintType, const Module *Context) {
754 std::map<const Type *, std::string> TypeNames;
755 if (Context == 0) Context = getModuleFromVal(V);
758 fillTypeNameTable(Context, TypeNames);
761 printTypeInt(Out, V->getType(), TypeNames);
763 WriteAsOperandInternal(Out, V, TypeNames, 0);
770 class AssemblyWriter {
772 SlotMachine &Machine;
773 const Module *TheModule;
774 std::map<const Type *, std::string> TypeNames;
775 AssemblyAnnotationWriter *AnnotationWriter;
777 inline AssemblyWriter(std::ostream &o, SlotMachine &Mac, const Module *M,
778 AssemblyAnnotationWriter *AAW)
779 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
781 // If the module has a symbol table, take all global types and stuff their
782 // names into the TypeNames map.
784 fillTypeNameTable(M, TypeNames);
787 inline void write(const Module *M) { printModule(M); }
788 inline void write(const GlobalVariable *G) { printGlobal(G); }
789 inline void write(const GlobalAlias *G) { printAlias(G); }
790 inline void write(const Function *F) { printFunction(F); }
791 inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
792 inline void write(const Instruction *I) { printInstruction(*I); }
793 inline void write(const Type *Ty) { printType(Ty); }
795 void writeOperand(const Value *Op, bool PrintType);
796 void writeParamOperand(const Value *Operand, ParameterAttributes Attrs);
798 const Module* getModule() { return TheModule; }
801 void printModule(const Module *M);
802 void printTypeSymbolTable(const TypeSymbolTable &ST);
803 void printGlobal(const GlobalVariable *GV);
804 void printAlias(const GlobalAlias *GV);
805 void printFunction(const Function *F);
806 void printArgument(const Argument *FA, ParameterAttributes Attrs);
807 void printBasicBlock(const BasicBlock *BB);
808 void printInstruction(const Instruction &I);
810 // printType - Go to extreme measures to attempt to print out a short,
811 // symbolic version of a type name.
813 std::ostream &printType(const Type *Ty) {
814 return printTypeInt(Out, Ty, TypeNames);
817 // printTypeAtLeastOneLevel - Print out one level of the possibly complex type
818 // without considering any symbolic types that we may have equal to it.
820 std::ostream &printTypeAtLeastOneLevel(const Type *Ty);
822 // printInfoComment - Print a little comment after the instruction indicating
823 // which slot it occupies.
824 void printInfoComment(const Value &V);
826 } // end of llvm namespace
828 /// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
829 /// without considering any symbolic types that we may have equal to it.
831 std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
832 if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
833 Out << "i" << utostr(ITy->getBitWidth());
834 else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
835 printType(FTy->getReturnType());
837 for (FunctionType::param_iterator I = FTy->param_begin(),
838 E = FTy->param_end(); I != E; ++I) {
839 if (I != FTy->param_begin())
843 if (FTy->isVarArg()) {
844 if (FTy->getNumParams()) Out << ", ";
848 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
852 for (StructType::element_iterator I = STy->element_begin(),
853 E = STy->element_end(); I != E; ++I) {
854 if (I != STy->element_begin())
861 } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
862 printType(PTy->getElementType());
863 if (unsigned AddressSpace = PTy->getAddressSpace())
864 Out << " addrspace(" << AddressSpace << ")";
866 } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
867 Out << '[' << ATy->getNumElements() << " x ";
868 printType(ATy->getElementType()) << ']';
869 } else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
870 Out << '<' << PTy->getNumElements() << " x ";
871 printType(PTy->getElementType()) << '>';
873 else if (isa<OpaqueType>(Ty)) {
876 if (!Ty->isPrimitiveType())
877 Out << "<unknown derived type>";
884 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
886 Out << "<null operand!>";
888 if (PrintType) { Out << ' '; printType(Operand->getType()); }
889 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
893 void AssemblyWriter::writeParamOperand(const Value *Operand,
894 ParameterAttributes Attrs) {
896 Out << "<null operand!>";
900 printType(Operand->getType());
901 // Print parameter attributes list
902 if (Attrs != ParamAttr::None)
903 Out << ' ' << ParamAttr::getAsString(Attrs);
905 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
909 void AssemblyWriter::printModule(const Module *M) {
910 if (!M->getModuleIdentifier().empty() &&
911 // Don't print the ID if it will start a new line (which would
912 // require a comment char before it).
913 M->getModuleIdentifier().find('\n') == std::string::npos)
914 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
916 if (!M->getDataLayout().empty())
917 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
918 if (!M->getTargetTriple().empty())
919 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
921 if (!M->getModuleInlineAsm().empty()) {
922 // Split the string into lines, to make it easier to read the .ll file.
923 std::string Asm = M->getModuleInlineAsm();
925 size_t NewLine = Asm.find_first_of('\n', CurPos);
926 while (NewLine != std::string::npos) {
927 // We found a newline, print the portion of the asm string from the
928 // last newline up to this newline.
929 Out << "module asm \"";
930 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
934 NewLine = Asm.find_first_of('\n', CurPos);
936 Out << "module asm \"";
937 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
941 // Loop over the dependent libraries and emit them.
942 Module::lib_iterator LI = M->lib_begin();
943 Module::lib_iterator LE = M->lib_end();
945 Out << "deplibs = [ ";
947 Out << '"' << *LI << '"';
955 // Loop over the symbol table, emitting all named constants.
956 printTypeSymbolTable(M->getTypeSymbolTable());
958 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
962 // Output all aliases.
963 if (!M->alias_empty()) Out << "\n";
964 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
968 // Output all of the functions.
969 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
973 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
975 PrintLLVMName(Out, GV);
979 if (!GV->hasInitializer()) {
980 switch (GV->getLinkage()) {
981 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
982 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
983 default: Out << "external "; break;
986 switch (GV->getLinkage()) {
987 case GlobalValue::InternalLinkage: Out << "internal "; break;
988 case GlobalValue::CommonLinkage: Out << "common "; break;
989 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
990 case GlobalValue::WeakLinkage: Out << "weak "; break;
991 case GlobalValue::AppendingLinkage: Out << "appending "; break;
992 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
993 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
994 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
995 case GlobalValue::ExternalLinkage: break;
996 case GlobalValue::GhostLinkage:
997 cerr << "GhostLinkage not allowed in AsmWriter!\n";
1000 switch (GV->getVisibility()) {
1001 default: assert(0 && "Invalid visibility style!");
1002 case GlobalValue::DefaultVisibility: break;
1003 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1004 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1008 if (GV->isThreadLocal()) Out << "thread_local ";
1009 Out << (GV->isConstant() ? "constant " : "global ");
1010 printType(GV->getType()->getElementType());
1012 if (GV->hasInitializer())
1013 writeOperand(GV->getInitializer(), false);
1015 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1016 Out << " addrspace(" << AddressSpace << ") ";
1018 if (GV->hasSection())
1019 Out << ", section \"" << GV->getSection() << '"';
1020 if (GV->getAlignment())
1021 Out << ", align " << GV->getAlignment();
1023 printInfoComment(*GV);
1027 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1028 // Don't crash when dumping partially built GA
1030 Out << "<<nameless>> = ";
1032 PrintLLVMName(Out, GA);
1035 switch (GA->getVisibility()) {
1036 default: assert(0 && "Invalid visibility style!");
1037 case GlobalValue::DefaultVisibility: break;
1038 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1039 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1044 switch (GA->getLinkage()) {
1045 case GlobalValue::WeakLinkage: Out << "weak "; break;
1046 case GlobalValue::InternalLinkage: Out << "internal "; break;
1047 case GlobalValue::ExternalLinkage: break;
1049 assert(0 && "Invalid alias linkage");
1052 const Constant *Aliasee = GA->getAliasee();
1054 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
1055 printType(GV->getType());
1057 PrintLLVMName(Out, GV);
1058 } else if (const Function *F = dyn_cast<Function>(Aliasee)) {
1059 printType(F->getFunctionType());
1063 PrintLLVMName(Out, F);
1066 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(Aliasee)) {
1067 printType(GA->getType());
1069 PrintLLVMName(Out, GA);
1071 const ConstantExpr *CE = 0;
1072 if ((CE = dyn_cast<ConstantExpr>(Aliasee)) &&
1073 (CE->getOpcode() == Instruction::BitCast)) {
1074 writeOperand(CE, false);
1076 assert(0 && "Unsupported aliasee");
1079 printInfoComment(*GA);
1083 void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
1085 for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
1087 Out << "\t" << getLLVMName(TI->first, LocalPrefix) << " = type ";
1089 // Make sure we print out at least one level of the type structure, so
1090 // that we do not get %FILE = type %FILE
1092 printTypeAtLeastOneLevel(TI->second) << "\n";
1096 /// printFunction - Print all aspects of a function.
1098 void AssemblyWriter::printFunction(const Function *F) {
1099 // Print out the return type and name...
1102 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1104 if (F->isDeclaration())
1109 switch (F->getLinkage()) {
1110 case GlobalValue::InternalLinkage: Out << "internal "; break;
1111 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
1112 case GlobalValue::WeakLinkage: Out << "weak "; break;
1113 case GlobalValue::CommonLinkage: Out << "common "; break;
1114 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1115 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1116 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1117 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1118 case GlobalValue::ExternalLinkage: break;
1119 case GlobalValue::GhostLinkage:
1120 cerr << "GhostLinkage not allowed in AsmWriter!\n";
1123 switch (F->getVisibility()) {
1124 default: assert(0 && "Invalid visibility style!");
1125 case GlobalValue::DefaultVisibility: break;
1126 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1127 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1130 // Print the calling convention.
1131 switch (F->getCallingConv()) {
1132 case CallingConv::C: break; // default
1133 case CallingConv::Fast: Out << "fastcc "; break;
1134 case CallingConv::Cold: Out << "coldcc "; break;
1135 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1136 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1137 case CallingConv::X86_SSECall: Out << "x86_ssecallcc "; break;
1138 default: Out << "cc" << F->getCallingConv() << " "; break;
1141 const FunctionType *FT = F->getFunctionType();
1142 const PAListPtr &Attrs = F->getParamAttrs();
1143 printType(F->getReturnType()) << ' ';
1144 if (!F->getName().empty())
1145 PrintLLVMName(Out, F);
1149 Machine.incorporateFunction(F);
1151 // Loop over the arguments, printing them...
1154 if (!F->isDeclaration()) {
1155 // If this isn't a declaration, print the argument names as well.
1156 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1158 // Insert commas as we go... the first arg doesn't get a comma
1159 if (I != F->arg_begin()) Out << ", ";
1160 printArgument(I, Attrs.getParamAttrs(Idx));
1164 // Otherwise, print the types from the function type.
1165 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1166 // Insert commas as we go... the first arg doesn't get a comma
1170 printType(FT->getParamType(i));
1172 ParameterAttributes ArgAttrs = Attrs.getParamAttrs(i+1);
1173 if (ArgAttrs != ParamAttr::None)
1174 Out << ' ' << ParamAttr::getAsString(ArgAttrs);
1178 // Finish printing arguments...
1179 if (FT->isVarArg()) {
1180 if (FT->getNumParams()) Out << ", ";
1181 Out << "..."; // Output varargs portion of signature!
1184 ParameterAttributes RetAttrs = Attrs.getParamAttrs(0);
1185 if (RetAttrs != ParamAttr::None)
1186 Out << ' ' << ParamAttr::getAsString(Attrs.getParamAttrs(0));
1187 if (F->hasSection())
1188 Out << " section \"" << F->getSection() << '"';
1189 if (F->getAlignment())
1190 Out << " align " << F->getAlignment();
1191 if (F->hasCollector())
1192 Out << " gc \"" << F->getCollector() << '"';
1194 if (F->isDeclaration()) {
1199 // Output all of its basic blocks... for the function
1200 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1206 Machine.purgeFunction();
1209 /// printArgument - This member is called for every argument that is passed into
1210 /// the function. Simply print it out
1212 void AssemblyWriter::printArgument(const Argument *Arg,
1213 ParameterAttributes Attrs) {
1215 printType(Arg->getType());
1217 // Output parameter attributes list
1218 if (Attrs != ParamAttr::None)
1219 Out << ' ' << ParamAttr::getAsString(Attrs);
1221 // Output name, if available...
1222 if (Arg->hasName()) {
1224 PrintLLVMName(Out, Arg);
1228 /// printBasicBlock - This member is called for each basic block in a method.
1230 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1231 if (BB->hasName()) { // Print out the label if it exists...
1233 PrintLLVMName(Out, BB->getValueName(), LabelPrefix);
1235 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1236 Out << "\n; <label>:";
1237 int Slot = Machine.getLocalSlot(BB);
1244 if (BB->getParent() == 0)
1245 Out << "\t\t; Error: Block without parent!";
1246 else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1247 // Output predecessors for the block...
1249 pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
1252 Out << " No predecessors!";
1255 writeOperand(*PI, false);
1256 for (++PI; PI != PE; ++PI) {
1258 writeOperand(*PI, false);
1265 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1267 // Output all of the instructions in the basic block...
1268 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1269 printInstruction(*I);
1271 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1275 /// printInfoComment - Print a little comment after the instruction indicating
1276 /// which slot it occupies.
1278 void AssemblyWriter::printInfoComment(const Value &V) {
1279 if (V.getType() != Type::VoidTy) {
1281 printType(V.getType()) << '>';
1285 if (const GlobalValue *GV = dyn_cast<GlobalValue>(&V))
1286 SlotNum = Machine.getGlobalSlot(GV);
1288 SlotNum = Machine.getLocalSlot(&V);
1292 Out << ':' << SlotNum; // Print out the def slot taken.
1294 Out << " [#uses=" << V.getNumUses() << ']'; // Output # uses
1298 // This member is called for each Instruction in a function..
1299 void AssemblyWriter::printInstruction(const Instruction &I) {
1300 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1304 // Print out name if it exists...
1306 PrintLLVMName(Out, &I);
1310 // If this is a volatile load or store, print out the volatile marker.
1311 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1312 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
1314 } else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
1315 // If this is a call, check if it's a tail call.
1319 // Print out the opcode...
1320 Out << I.getOpcodeName();
1322 // Print out the compare instruction predicates
1323 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1324 Out << " " << getPredicateText(CI->getPredicate());
1326 // Print out the type of the operands...
1327 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1329 // Special case conditional branches to swizzle the condition out to the front
1330 if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
1331 writeOperand(I.getOperand(2), true);
1333 writeOperand(Operand, true);
1335 writeOperand(I.getOperand(1), true);
1337 } else if (isa<SwitchInst>(I)) {
1338 // Special case switch statement to get formatting nice and correct...
1339 writeOperand(Operand , true); Out << ',';
1340 writeOperand(I.getOperand(1), true); Out << " [";
1342 for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
1344 writeOperand(I.getOperand(op ), true); Out << ',';
1345 writeOperand(I.getOperand(op+1), true);
1348 } else if (isa<PHINode>(I)) {
1350 printType(I.getType());
1353 for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
1354 if (op) Out << ", ";
1356 writeOperand(I.getOperand(op ), false); Out << ',';
1357 writeOperand(I.getOperand(op+1), false); Out << " ]";
1359 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1360 writeOperand(I.getOperand(0), true);
1361 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1363 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1364 writeOperand(I.getOperand(0), true); Out << ',';
1365 writeOperand(I.getOperand(1), true);
1366 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1368 } else if (isa<ReturnInst>(I) && !Operand) {
1370 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1371 // Print the calling convention being used.
1372 switch (CI->getCallingConv()) {
1373 case CallingConv::C: break; // default
1374 case CallingConv::Fast: Out << " fastcc"; break;
1375 case CallingConv::Cold: Out << " coldcc"; break;
1376 case CallingConv::X86_StdCall: Out << " x86_stdcallcc"; break;
1377 case CallingConv::X86_FastCall: Out << " x86_fastcallcc"; break;
1378 case CallingConv::X86_SSECall: Out << " x86_ssecallcc"; break;
1379 default: Out << " cc" << CI->getCallingConv(); break;
1382 const PointerType *PTy = cast<PointerType>(Operand->getType());
1383 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1384 const Type *RetTy = FTy->getReturnType();
1385 const PAListPtr &PAL = CI->getParamAttrs();
1387 // If possible, print out the short form of the call instruction. We can
1388 // only do this if the first argument is a pointer to a nonvararg function,
1389 // and if the return type is not a pointer to a function.
1391 if (!FTy->isVarArg() &&
1392 (!isa<PointerType>(RetTy) ||
1393 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1394 Out << ' '; printType(RetTy);
1395 writeOperand(Operand, false);
1397 writeOperand(Operand, true);
1400 for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
1403 writeParamOperand(I.getOperand(op), PAL.getParamAttrs(op));
1406 if (PAL.getParamAttrs(0) != ParamAttr::None)
1407 Out << ' ' << ParamAttr::getAsString(PAL.getParamAttrs(0));
1408 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1409 const PointerType *PTy = cast<PointerType>(Operand->getType());
1410 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1411 const Type *RetTy = FTy->getReturnType();
1412 const PAListPtr &PAL = II->getParamAttrs();
1414 // Print the calling convention being used.
1415 switch (II->getCallingConv()) {
1416 case CallingConv::C: break; // default
1417 case CallingConv::Fast: Out << " fastcc"; break;
1418 case CallingConv::Cold: Out << " coldcc"; break;
1419 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1420 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1421 case CallingConv::X86_SSECall: Out << "x86_ssecallcc "; break;
1422 default: Out << " cc" << II->getCallingConv(); break;
1425 // If possible, print out the short form of the invoke instruction. We can
1426 // only do this if the first argument is a pointer to a nonvararg function,
1427 // and if the return type is not a pointer to a function.
1429 if (!FTy->isVarArg() &&
1430 (!isa<PointerType>(RetTy) ||
1431 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1432 Out << ' '; printType(RetTy);
1433 writeOperand(Operand, false);
1435 writeOperand(Operand, true);
1439 for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
1442 writeParamOperand(I.getOperand(op), PAL.getParamAttrs(op-2));
1446 if (PAL.getParamAttrs(0) != ParamAttr::None)
1447 Out << ' ' << ParamAttr::getAsString(PAL.getParamAttrs(0));
1448 Out << "\n\t\t\tto";
1449 writeOperand(II->getNormalDest(), true);
1451 writeOperand(II->getUnwindDest(), true);
1453 } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
1455 printType(AI->getType()->getElementType());
1456 if (AI->isArrayAllocation()) {
1458 writeOperand(AI->getArraySize(), true);
1460 if (AI->getAlignment()) {
1461 Out << ", align " << AI->getAlignment();
1463 } else if (isa<CastInst>(I)) {
1464 if (Operand) writeOperand(Operand, true); // Work with broken code
1466 printType(I.getType());
1467 } else if (isa<VAArgInst>(I)) {
1468 if (Operand) writeOperand(Operand, true); // Work with broken code
1470 printType(I.getType());
1471 } else if (Operand) { // Print the normal way...
1473 // PrintAllTypes - Instructions who have operands of all the same type
1474 // omit the type from all but the first operand. If the instruction has
1475 // different type operands (for example br), then they are all printed.
1476 bool PrintAllTypes = false;
1477 const Type *TheType = Operand->getType();
1479 // Select, Store and ShuffleVector always print all types.
1480 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
1481 || isa<ReturnInst>(I)) {
1482 PrintAllTypes = true;
1484 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
1485 Operand = I.getOperand(i);
1486 if (Operand->getType() != TheType) {
1487 PrintAllTypes = true; // We have differing types! Print them all!
1493 if (!PrintAllTypes) {
1498 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
1500 writeOperand(I.getOperand(i), PrintAllTypes);
1504 // Print post operand alignment for load/store
1505 if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
1506 Out << ", align " << cast<LoadInst>(I).getAlignment();
1507 } else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
1508 Out << ", align " << cast<StoreInst>(I).getAlignment();
1511 printInfoComment(I);
1516 //===----------------------------------------------------------------------===//
1517 // External Interface declarations
1518 //===----------------------------------------------------------------------===//
1520 void Module::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1521 SlotMachine SlotTable(this);
1522 AssemblyWriter W(o, SlotTable, this, AAW);
1526 void GlobalVariable::print(std::ostream &o) const {
1527 SlotMachine SlotTable(getParent());
1528 AssemblyWriter W(o, SlotTable, getParent(), 0);
1532 void GlobalAlias::print(std::ostream &o) const {
1533 SlotMachine SlotTable(getParent());
1534 AssemblyWriter W(o, SlotTable, getParent(), 0);
1538 void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1539 SlotMachine SlotTable(getParent());
1540 AssemblyWriter W(o, SlotTable, getParent(), AAW);
1545 void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1546 WriteAsOperand(o, this, true, 0);
1549 void BasicBlock::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1550 SlotMachine SlotTable(getParent());
1551 AssemblyWriter W(o, SlotTable,
1552 getParent() ? getParent()->getParent() : 0, AAW);
1556 void Instruction::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1557 const Function *F = getParent() ? getParent()->getParent() : 0;
1558 SlotMachine SlotTable(F);
1559 AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0, AAW);
1564 void Constant::print(std::ostream &o) const {
1565 if (this == 0) { o << "<null> constant value\n"; return; }
1567 o << ' ' << getType()->getDescription() << ' ';
1569 std::map<const Type *, std::string> TypeTable;
1570 WriteConstantInt(o, this, TypeTable, 0);
1573 void Type::print(std::ostream &o) const {
1577 o << getDescription();
1580 void Argument::print(std::ostream &o) const {
1581 WriteAsOperand(o, this, true, getParent() ? getParent()->getParent() : 0);
1584 // Value::dump - allow easy printing of Values from the debugger.
1585 // Located here because so much of the needed functionality is here.
1586 void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
1588 // Type::dump - allow easy printing of Values from the debugger.
1589 // Located here because so much of the needed functionality is here.
1590 void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }
1592 //===----------------------------------------------------------------------===//
1593 // SlotMachine Implementation
1594 //===----------------------------------------------------------------------===//
1597 #define SC_DEBUG(X) cerr << X
1602 // Module level constructor. Causes the contents of the Module (sans functions)
1603 // to be added to the slot table.
1604 SlotMachine::SlotMachine(const Module *M)
1605 : TheModule(M) ///< Saved for lazy initialization.
1607 , FunctionProcessed(false)
1608 , mNext(0), fMap(), fNext(0)
1612 // Function level constructor. Causes the contents of the Module and the one
1613 // function provided to be added to the slot table.
1614 SlotMachine::SlotMachine(const Function *F)
1615 : TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
1616 , TheFunction(F) ///< Saved for lazy initialization
1617 , FunctionProcessed(false)
1618 , mNext(0), fMap(), fNext(0)
1622 inline void SlotMachine::initialize() {
1625 TheModule = 0; ///< Prevent re-processing next time we're called.
1627 if (TheFunction && !FunctionProcessed)
1631 // Iterate through all the global variables, functions, and global
1632 // variable initializers and create slots for them.
1633 void SlotMachine::processModule() {
1634 SC_DEBUG("begin processModule!\n");
1636 // Add all of the unnamed global variables to the value table.
1637 for (Module::const_global_iterator I = TheModule->global_begin(),
1638 E = TheModule->global_end(); I != E; ++I)
1640 CreateModuleSlot(I);
1642 // Add all the unnamed functions to the table.
1643 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1646 CreateModuleSlot(I);
1648 SC_DEBUG("end processModule!\n");
1652 // Process the arguments, basic blocks, and instructions of a function.
1653 void SlotMachine::processFunction() {
1654 SC_DEBUG("begin processFunction!\n");
1657 // Add all the function arguments with no names.
1658 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
1659 AE = TheFunction->arg_end(); AI != AE; ++AI)
1661 CreateFunctionSlot(AI);
1663 SC_DEBUG("Inserting Instructions:\n");
1665 // Add all of the basic blocks and instructions with no names.
1666 for (Function::const_iterator BB = TheFunction->begin(),
1667 E = TheFunction->end(); BB != E; ++BB) {
1669 CreateFunctionSlot(BB);
1670 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1671 if (I->getType() != Type::VoidTy && !I->hasName())
1672 CreateFunctionSlot(I);
1675 FunctionProcessed = true;
1677 SC_DEBUG("end processFunction!\n");
1680 /// Clean up after incorporating a function. This is the only way to get out of
1681 /// the function incorporation state that affects get*Slot/Create*Slot. Function
1682 /// incorporation state is indicated by TheFunction != 0.
1683 void SlotMachine::purgeFunction() {
1684 SC_DEBUG("begin purgeFunction!\n");
1685 fMap.clear(); // Simply discard the function level map
1687 FunctionProcessed = false;
1688 SC_DEBUG("end purgeFunction!\n");
1691 /// getGlobalSlot - Get the slot number of a global value.
1692 int SlotMachine::getGlobalSlot(const GlobalValue *V) {
1693 // Check for uninitialized state and do lazy initialization.
1696 // Find the type plane in the module map
1697 ValueMap::const_iterator MI = mMap.find(V);
1698 if (MI == mMap.end()) return -1;
1704 /// getLocalSlot - Get the slot number for a value that is local to a function.
1705 int SlotMachine::getLocalSlot(const Value *V) {
1706 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
1708 // Check for uninitialized state and do lazy initialization.
1711 ValueMap::const_iterator FI = fMap.find(V);
1712 if (FI == fMap.end()) return -1;
1718 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
1719 void SlotMachine::CreateModuleSlot(const GlobalValue *V) {
1720 assert(V && "Can't insert a null Value into SlotMachine!");
1721 assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
1722 assert(!V->hasName() && "Doesn't need a slot!");
1724 unsigned DestSlot = mNext++;
1727 SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
1729 // G = Global, F = Function, A = Alias, o = other
1730 SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
1731 (isa<Function>(V) ? 'F' :
1732 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
1736 /// CreateSlot - Create a new slot for the specified value if it has no name.
1737 void SlotMachine::CreateFunctionSlot(const Value *V) {
1738 assert(V->getType() != Type::VoidTy && !V->hasName() &&
1739 "Doesn't need a slot!");
1741 unsigned DestSlot = fNext++;
1744 // G = Global, F = Function, o = other
1745 SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
1746 DestSlot << " [o]\n");