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"
40 // Make virtual table appear in this compilation unit.
41 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
43 /// This class provides computation of slot numbers for LLVM Assembly writing.
44 /// @brief LLVM Assembly Writing Slot Computation.
51 /// @brief A mapping of Values to slot numbers
52 typedef std::map<const Value*,unsigned> ValueMap;
55 /// @name Constructors
58 /// @brief Construct from a module
59 SlotMachine(const Module *M);
61 /// @brief Construct from a function, starting out in incorp state.
62 SlotMachine(const Function *F);
68 /// Return the slot number of the specified value in it's type
69 /// plane. If something is not in the SlotMachine, return -1.
70 int getLocalSlot(const Value *V);
71 int getGlobalSlot(const GlobalValue *V);
77 /// If you'd like to deal with a function instead of just a module, use
78 /// this method to get its data into the SlotMachine.
79 void incorporateFunction(const Function *F) {
81 FunctionProcessed = false;
84 /// After calling incorporateFunction, use this method to remove the
85 /// most recently incorporated function from the SlotMachine. This
86 /// will reset the state of the machine back to just the module contents.
90 /// @name Implementation Details
93 /// This function does the actual initialization.
94 inline void initialize();
96 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
97 void CreateModuleSlot(const GlobalValue *V);
99 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
100 void CreateFunctionSlot(const Value *V);
102 /// Add all of the module level global variables (and their initializers)
103 /// and function declarations, but not the contents of those functions.
104 void processModule();
106 /// Add all of the functions arguments, basic blocks, and instructions
107 void processFunction();
109 SlotMachine(const SlotMachine &); // DO NOT IMPLEMENT
110 void operator=(const SlotMachine &); // DO NOT IMPLEMENT
117 /// @brief The module for which we are holding slot numbers
118 const Module* TheModule;
120 /// @brief The function for which we are holding slot numbers
121 const Function* TheFunction;
122 bool FunctionProcessed;
124 /// @brief The TypePlanes map for the module level data
128 /// @brief The TypePlanes map for the function level data
136 } // end namespace llvm
138 static RegisterPass<PrintModulePass>
139 X("printm", "Print module to stderr");
140 static RegisterPass<PrintFunctionPass>
141 Y("print","Print function to stderr");
143 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
144 std::map<const Type *, std::string> &TypeTable,
145 SlotMachine *Machine);
147 static const Module *getModuleFromVal(const Value *V) {
148 if (const Argument *MA = dyn_cast<Argument>(V))
149 return MA->getParent() ? MA->getParent()->getParent() : 0;
150 else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
151 return BB->getParent() ? BB->getParent()->getParent() : 0;
152 else if (const Instruction *I = dyn_cast<Instruction>(V)) {
153 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
154 return M ? M->getParent() : 0;
155 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
156 return GV->getParent();
160 static SlotMachine *createSlotMachine(const Value *V) {
161 if (const Argument *FA = dyn_cast<Argument>(V)) {
162 return new SlotMachine(FA->getParent());
163 } else if (const Instruction *I = dyn_cast<Instruction>(V)) {
164 return new SlotMachine(I->getParent()->getParent());
165 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
166 return new SlotMachine(BB->getParent());
167 } else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)){
168 return new SlotMachine(GV->getParent());
169 } else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V)){
170 return new SlotMachine(GA->getParent());
171 } else if (const Function *Func = dyn_cast<Function>(V)) {
172 return new SlotMachine(Func);
177 /// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
179 static bool NameNeedsQuotes(const std::string &Name) {
180 if (Name[0] >= '0' && Name[0] <= '9') return true;
181 // Scan to see if we have any characters that are not on the "white list"
182 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
184 assert(C != '"' && "Illegal character in LLVM value name!");
185 if ((C < 'a' || C > 'z') && (C < 'A' || C > 'Z') && (C < '0' || C > '9') &&
186 C != '-' && C != '.' && C != '_')
198 /// getLLVMName - Turn the specified string into an 'LLVM name', which is either
199 /// prefixed with % (if the string only contains simple characters) or is
200 /// surrounded with ""'s (if it has special chars in it).
201 static std::string getLLVMName(const std::string &Name, PrefixType Prefix) {
202 assert(!Name.empty() && "Cannot get empty name!");
204 // First character cannot start with a number...
205 if (NameNeedsQuotes(Name)) {
206 if (Prefix == GlobalPrefix)
207 return "@\"" + Name + "\"";
208 return "\"" + Name + "\"";
211 // If we get here, then the identifier is legal to use as a "VarID".
213 default: assert(0 && "Bad prefix!");
214 case GlobalPrefix: return '@' + Name;
215 case LabelPrefix: return Name;
216 case LocalPrefix: return '%' + Name;
221 /// fillTypeNameTable - If the module has a symbol table, take all global types
222 /// and stuff their names into the TypeNames map.
224 static void fillTypeNameTable(const Module *M,
225 std::map<const Type *, std::string> &TypeNames) {
227 const TypeSymbolTable &ST = M->getTypeSymbolTable();
228 TypeSymbolTable::const_iterator TI = ST.begin();
229 for (; TI != ST.end(); ++TI) {
230 // As a heuristic, don't insert pointer to primitive types, because
231 // they are used too often to have a single useful name.
233 const Type *Ty = cast<Type>(TI->second);
234 if (!isa<PointerType>(Ty) ||
235 !cast<PointerType>(Ty)->getElementType()->isPrimitiveType() ||
236 !cast<PointerType>(Ty)->getElementType()->isInteger() ||
237 isa<OpaqueType>(cast<PointerType>(Ty)->getElementType()))
238 TypeNames.insert(std::make_pair(Ty, getLLVMName(TI->first, LocalPrefix)));
244 static void calcTypeName(const Type *Ty,
245 std::vector<const Type *> &TypeStack,
246 std::map<const Type *, std::string> &TypeNames,
247 std::string & Result){
248 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty))) {
249 Result += Ty->getDescription(); // Base case
253 // Check to see if the type is named.
254 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
255 if (I != TypeNames.end()) {
260 if (isa<OpaqueType>(Ty)) {
265 // Check to see if the Type is already on the stack...
266 unsigned Slot = 0, CurSize = TypeStack.size();
267 while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
269 // This is another base case for the recursion. In this case, we know
270 // that we have looped back to a type that we have previously visited.
271 // Generate the appropriate upreference to handle this.
272 if (Slot < CurSize) {
273 Result += "\\" + utostr(CurSize-Slot); // Here's the upreference
277 TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
279 switch (Ty->getTypeID()) {
280 case Type::IntegerTyID: {
281 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
282 Result += "i" + utostr(BitWidth);
285 case Type::FunctionTyID: {
286 const FunctionType *FTy = cast<FunctionType>(Ty);
287 calcTypeName(FTy->getReturnType(), TypeStack, TypeNames, Result);
290 const ParamAttrsList *Attrs = FTy->getParamAttrs();
291 for (FunctionType::param_iterator I = FTy->param_begin(),
292 E = FTy->param_end(); I != E; ++I) {
293 if (I != FTy->param_begin())
295 calcTypeName(*I, TypeStack, TypeNames, Result);
296 if (Attrs && Attrs->getParamAttrs(Idx) != ParamAttr::None) {
298 Result += Attrs->getParamAttrsTextByIndex(Idx);
302 if (FTy->isVarArg()) {
303 if (FTy->getNumParams()) Result += ", ";
307 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None) {
309 Result += Attrs->getParamAttrsTextByIndex(0);
313 case Type::StructTyID: {
314 const StructType *STy = cast<StructType>(Ty);
318 for (StructType::element_iterator I = STy->element_begin(),
319 E = STy->element_end(); I != E; ++I) {
320 if (I != STy->element_begin())
322 calcTypeName(*I, TypeStack, TypeNames, Result);
329 case Type::PointerTyID:
330 calcTypeName(cast<PointerType>(Ty)->getElementType(),
331 TypeStack, TypeNames, Result);
334 case Type::ArrayTyID: {
335 const ArrayType *ATy = cast<ArrayType>(Ty);
336 Result += "[" + utostr(ATy->getNumElements()) + " x ";
337 calcTypeName(ATy->getElementType(), TypeStack, TypeNames, Result);
341 case Type::VectorTyID: {
342 const VectorType *PTy = cast<VectorType>(Ty);
343 Result += "<" + utostr(PTy->getNumElements()) + " x ";
344 calcTypeName(PTy->getElementType(), TypeStack, TypeNames, Result);
348 case Type::OpaqueTyID:
352 Result += "<unrecognized-type>";
356 TypeStack.pop_back(); // Remove self from stack...
360 /// printTypeInt - The internal guts of printing out a type that has a
361 /// potentially named portion.
363 static std::ostream &printTypeInt(std::ostream &Out, const Type *Ty,
364 std::map<const Type *, std::string> &TypeNames) {
365 // Primitive types always print out their description, regardless of whether
366 // they have been named or not.
368 if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty)))
369 return Out << Ty->getDescription();
371 // Check to see if the type is named.
372 std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
373 if (I != TypeNames.end()) return Out << I->second;
375 // Otherwise we have a type that has not been named but is a derived type.
376 // Carefully recurse the type hierarchy to print out any contained symbolic
379 std::vector<const Type *> TypeStack;
380 std::string TypeName;
381 calcTypeName(Ty, TypeStack, TypeNames, TypeName);
382 TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
383 return (Out << TypeName);
387 /// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
388 /// type, iff there is an entry in the modules symbol table for the specified
389 /// type or one of it's component types. This is slower than a simple x << Type
391 std::ostream &llvm::WriteTypeSymbolic(std::ostream &Out, const Type *Ty,
395 // If they want us to print out a type, but there is no context, we can't
396 // print it symbolically.
398 return Out << Ty->getDescription();
400 std::map<const Type *, std::string> TypeNames;
401 fillTypeNameTable(M, TypeNames);
402 return printTypeInt(Out, Ty, TypeNames);
405 // PrintEscapedString - Print each character of the specified string, escaping
406 // it if it is not printable or if it is an escape char.
407 static void PrintEscapedString(const std::string &Str, std::ostream &Out) {
408 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
409 unsigned char C = Str[i];
410 if (isprint(C) && C != '"' && C != '\\') {
414 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
415 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
420 static const char *getPredicateText(unsigned predicate) {
421 const char * pred = "unknown";
423 case FCmpInst::FCMP_FALSE: pred = "false"; break;
424 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
425 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
426 case FCmpInst::FCMP_OGE: pred = "oge"; break;
427 case FCmpInst::FCMP_OLT: pred = "olt"; break;
428 case FCmpInst::FCMP_OLE: pred = "ole"; break;
429 case FCmpInst::FCMP_ONE: pred = "one"; break;
430 case FCmpInst::FCMP_ORD: pred = "ord"; break;
431 case FCmpInst::FCMP_UNO: pred = "uno"; break;
432 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
433 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
434 case FCmpInst::FCMP_UGE: pred = "uge"; break;
435 case FCmpInst::FCMP_ULT: pred = "ult"; break;
436 case FCmpInst::FCMP_ULE: pred = "ule"; break;
437 case FCmpInst::FCMP_UNE: pred = "une"; break;
438 case FCmpInst::FCMP_TRUE: pred = "true"; break;
439 case ICmpInst::ICMP_EQ: pred = "eq"; break;
440 case ICmpInst::ICMP_NE: pred = "ne"; break;
441 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
442 case ICmpInst::ICMP_SGE: pred = "sge"; break;
443 case ICmpInst::ICMP_SLT: pred = "slt"; break;
444 case ICmpInst::ICMP_SLE: pred = "sle"; break;
445 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
446 case ICmpInst::ICMP_UGE: pred = "uge"; break;
447 case ICmpInst::ICMP_ULT: pred = "ult"; break;
448 case ICmpInst::ICMP_ULE: pred = "ule"; break;
453 /// @brief Internal constant writer.
454 static void WriteConstantInt(std::ostream &Out, const Constant *CV,
455 std::map<const Type *, std::string> &TypeTable,
456 SlotMachine *Machine) {
457 const int IndentSize = 4;
458 static std::string Indent = "\n";
459 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
460 if (CI->getType() == Type::Int1Ty)
461 Out << (CI->getZExtValue() ? "true" : "false");
463 Out << CI->getValue().toStringSigned(10);
464 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
465 // We would like to output the FP constant value in exponential notation,
466 // but we cannot do this if doing so will lose precision. Check here to
467 // make sure that we only output it in exponential format if we can parse
468 // the value back and get the same value.
470 std::string StrVal = ftostr(CFP->getValue());
472 // Check to make sure that the stringized number is not some string like
473 // "Inf" or NaN, that atof will accept, but the lexer will not. Check that
474 // the string matches the "[-+]?[0-9]" regex.
476 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
477 ((StrVal[0] == '-' || StrVal[0] == '+') &&
478 (StrVal[1] >= '0' && StrVal[1] <= '9')))
479 // Reparse stringized version!
480 if (atof(StrVal.c_str()) == CFP->getValue()) {
485 // Otherwise we could not reparse it to exactly the same value, so we must
486 // output the string in hexadecimal format!
487 assert(sizeof(double) == sizeof(uint64_t) &&
488 "assuming that double is 64 bits!");
489 Out << "0x" << utohexstr(DoubleToBits(CFP->getValue()));
491 } else if (isa<ConstantAggregateZero>(CV)) {
492 Out << "zeroinitializer";
493 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
494 // As a special case, print the array as a string if it is an array of
495 // ubytes or an array of sbytes with positive values.
497 const Type *ETy = CA->getType()->getElementType();
498 if (CA->isString()) {
500 PrintEscapedString(CA->getAsString(), Out);
503 } else { // Cannot output in string format...
505 if (CA->getNumOperands()) {
507 printTypeInt(Out, ETy, TypeTable);
508 WriteAsOperandInternal(Out, CA->getOperand(0),
510 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
512 printTypeInt(Out, ETy, TypeTable);
513 WriteAsOperandInternal(Out, CA->getOperand(i), TypeTable, Machine);
518 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
519 if (CS->getType()->isPacked())
522 unsigned N = CS->getNumOperands();
525 Indent += std::string(IndentSize, ' ');
530 printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
532 WriteAsOperandInternal(Out, CS->getOperand(0), TypeTable, Machine);
534 for (unsigned i = 1; i < N; i++) {
536 if (N > 2) Out << Indent;
537 printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
539 WriteAsOperandInternal(Out, CS->getOperand(i), TypeTable, Machine);
541 if (N > 2) Indent.resize(Indent.size() - IndentSize);
545 if (CS->getType()->isPacked())
547 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
548 const Type *ETy = CP->getType()->getElementType();
549 assert(CP->getNumOperands() > 0 &&
550 "Number of operands for a PackedConst must be > 0");
553 printTypeInt(Out, ETy, TypeTable);
554 WriteAsOperandInternal(Out, CP->getOperand(0), TypeTable, Machine);
555 for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
557 printTypeInt(Out, ETy, TypeTable);
558 WriteAsOperandInternal(Out, CP->getOperand(i), TypeTable, Machine);
561 } else if (isa<ConstantPointerNull>(CV)) {
564 } else if (isa<UndefValue>(CV)) {
567 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
568 Out << CE->getOpcodeName();
570 Out << " " << getPredicateText(CE->getPredicate());
573 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
574 printTypeInt(Out, (*OI)->getType(), TypeTable);
575 WriteAsOperandInternal(Out, *OI, TypeTable, Machine);
576 if (OI+1 != CE->op_end())
582 printTypeInt(Out, CE->getType(), TypeTable);
588 Out << "<placeholder or erroneous Constant>";
593 /// WriteAsOperand - Write the name of the specified value out to the specified
594 /// ostream. This can be useful when you just want to print int %reg126, not
595 /// the whole instruction that generated it.
597 static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
598 std::map<const Type*, std::string> &TypeTable,
599 SlotMachine *Machine) {
602 Out << getLLVMName(V->getName(),
603 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
605 const Constant *CV = dyn_cast<Constant>(V);
606 if (CV && !isa<GlobalValue>(CV)) {
607 WriteConstantInt(Out, CV, TypeTable, Machine);
608 } else if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
610 if (IA->hasSideEffects())
611 Out << "sideeffect ";
613 PrintEscapedString(IA->getAsmString(), Out);
615 PrintEscapedString(IA->getConstraintString(), Out);
621 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
622 Slot = Machine->getGlobalSlot(GV);
625 Slot = Machine->getLocalSlot(V);
628 Machine = createSlotMachine(V);
630 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
631 Slot = Machine->getGlobalSlot(GV);
634 Slot = Machine->getLocalSlot(V);
642 Out << Prefix << Slot;
649 /// WriteAsOperand - Write the name of the specified value out to the specified
650 /// ostream. This can be useful when you just want to print int %reg126, not
651 /// the whole instruction that generated it.
653 std::ostream &llvm::WriteAsOperand(std::ostream &Out, const Value *V,
654 bool PrintType, const Module *Context) {
655 std::map<const Type *, std::string> TypeNames;
656 if (Context == 0) Context = getModuleFromVal(V);
659 fillTypeNameTable(Context, TypeNames);
662 printTypeInt(Out, V->getType(), TypeNames);
664 WriteAsOperandInternal(Out, V, TypeNames, 0);
671 class AssemblyWriter {
673 SlotMachine &Machine;
674 const Module *TheModule;
675 std::map<const Type *, std::string> TypeNames;
676 AssemblyAnnotationWriter *AnnotationWriter;
678 inline AssemblyWriter(std::ostream &o, SlotMachine &Mac, const Module *M,
679 AssemblyAnnotationWriter *AAW)
680 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
682 // If the module has a symbol table, take all global types and stuff their
683 // names into the TypeNames map.
685 fillTypeNameTable(M, TypeNames);
688 inline void write(const Module *M) { printModule(M); }
689 inline void write(const GlobalVariable *G) { printGlobal(G); }
690 inline void write(const GlobalAlias *G) { printAlias(G); }
691 inline void write(const Function *F) { printFunction(F); }
692 inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
693 inline void write(const Instruction *I) { printInstruction(*I); }
694 inline void write(const Type *Ty) { printType(Ty); }
696 void writeOperand(const Value *Op, bool PrintType);
698 const Module* getModule() { return TheModule; }
701 void printModule(const Module *M);
702 void printTypeSymbolTable(const TypeSymbolTable &ST);
703 void printGlobal(const GlobalVariable *GV);
704 void printAlias(const GlobalAlias *GV);
705 void printFunction(const Function *F);
706 void printArgument(const Argument *FA, uint16_t ParamAttrs);
707 void printBasicBlock(const BasicBlock *BB);
708 void printInstruction(const Instruction &I);
710 // printType - Go to extreme measures to attempt to print out a short,
711 // symbolic version of a type name.
713 std::ostream &printType(const Type *Ty) {
714 return printTypeInt(Out, Ty, TypeNames);
717 // printTypeAtLeastOneLevel - Print out one level of the possibly complex type
718 // without considering any symbolic types that we may have equal to it.
720 std::ostream &printTypeAtLeastOneLevel(const Type *Ty);
722 // printInfoComment - Print a little comment after the instruction indicating
723 // which slot it occupies.
724 void printInfoComment(const Value &V);
726 } // end of llvm namespace
728 /// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
729 /// without considering any symbolic types that we may have equal to it.
731 std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
732 if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
733 Out << "i" << utostr(ITy->getBitWidth());
734 else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
735 printType(FTy->getReturnType());
738 const ParamAttrsList *Attrs = FTy->getParamAttrs();
739 for (FunctionType::param_iterator I = FTy->param_begin(),
740 E = FTy->param_end(); I != E; ++I) {
741 if (I != FTy->param_begin())
744 if (Attrs && Attrs->getParamAttrs(Idx) != ParamAttr::None) {
745 Out << " " << Attrs->getParamAttrsTextByIndex(Idx);
749 if (FTy->isVarArg()) {
750 if (FTy->getNumParams()) Out << ", ";
754 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None)
755 Out << ' ' << Attrs->getParamAttrsTextByIndex(0);
756 } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
760 for (StructType::element_iterator I = STy->element_begin(),
761 E = STy->element_end(); I != E; ++I) {
762 if (I != STy->element_begin())
769 } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
770 printType(PTy->getElementType()) << '*';
771 } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
772 Out << '[' << ATy->getNumElements() << " x ";
773 printType(ATy->getElementType()) << ']';
774 } else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
775 Out << '<' << PTy->getNumElements() << " x ";
776 printType(PTy->getElementType()) << '>';
778 else if (isa<OpaqueType>(Ty)) {
781 if (!Ty->isPrimitiveType())
782 Out << "<unknown derived type>";
789 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
791 Out << "<null operand!>";
793 if (PrintType) { Out << ' '; printType(Operand->getType()); }
794 WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
799 void AssemblyWriter::printModule(const Module *M) {
800 if (!M->getModuleIdentifier().empty() &&
801 // Don't print the ID if it will start a new line (which would
802 // require a comment char before it).
803 M->getModuleIdentifier().find('\n') == std::string::npos)
804 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
806 if (!M->getDataLayout().empty())
807 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
808 if (!M->getTargetTriple().empty())
809 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
811 if (!M->getModuleInlineAsm().empty()) {
812 // Split the string into lines, to make it easier to read the .ll file.
813 std::string Asm = M->getModuleInlineAsm();
815 size_t NewLine = Asm.find_first_of('\n', CurPos);
816 while (NewLine != std::string::npos) {
817 // We found a newline, print the portion of the asm string from the
818 // last newline up to this newline.
819 Out << "module asm \"";
820 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
824 NewLine = Asm.find_first_of('\n', CurPos);
826 Out << "module asm \"";
827 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
831 // Loop over the dependent libraries and emit them.
832 Module::lib_iterator LI = M->lib_begin();
833 Module::lib_iterator LE = M->lib_end();
835 Out << "deplibs = [ ";
837 Out << '"' << *LI << '"';
845 // Loop over the symbol table, emitting all named constants.
846 printTypeSymbolTable(M->getTypeSymbolTable());
848 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
852 // Output all aliases.
853 if (!M->alias_empty()) Out << "\n";
854 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
858 // Output all of the functions.
859 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
863 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
864 if (GV->hasName()) Out << getLLVMName(GV->getName(), GlobalPrefix) << " = ";
866 if (!GV->hasInitializer())
867 switch (GV->getLinkage()) {
868 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
869 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
870 default: Out << "external "; break;
872 switch (GV->getLinkage()) {
873 case GlobalValue::InternalLinkage: Out << "internal "; break;
874 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
875 case GlobalValue::WeakLinkage: Out << "weak "; break;
876 case GlobalValue::AppendingLinkage: Out << "appending "; break;
877 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
878 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
879 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
880 case GlobalValue::ExternalLinkage: break;
881 case GlobalValue::GhostLinkage:
882 cerr << "GhostLinkage not allowed in AsmWriter!\n";
885 switch (GV->getVisibility()) {
886 default: assert(0 && "Invalid visibility style!");
887 case GlobalValue::DefaultVisibility: break;
888 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
892 if (GV->isThreadLocal()) Out << "thread_local ";
893 Out << (GV->isConstant() ? "constant " : "global ");
894 printType(GV->getType()->getElementType());
896 if (GV->hasInitializer()) {
897 Constant* C = cast<Constant>(GV->getInitializer());
898 assert(C && "GlobalVar initializer isn't constant?");
899 writeOperand(GV->getInitializer(), false);
902 if (GV->hasSection())
903 Out << ", section \"" << GV->getSection() << '"';
904 if (GV->getAlignment())
905 Out << ", align " << GV->getAlignment();
907 printInfoComment(*GV);
911 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
912 Out << getLLVMName(GA->getName(), GlobalPrefix) << " = ";
913 switch (GA->getVisibility()) {
914 default: assert(0 && "Invalid visibility style!");
915 case GlobalValue::DefaultVisibility: break;
916 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
921 switch (GA->getLinkage()) {
922 case GlobalValue::WeakLinkage: Out << "weak "; break;
923 case GlobalValue::InternalLinkage: Out << "internal "; break;
924 case GlobalValue::ExternalLinkage: break;
926 assert(0 && "Invalid alias linkage");
929 const GlobalValue *Aliasee = GA->getAliasee();
930 assert(Aliasee && "Aliasee cannot be null");
932 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
933 printType(GV->getType());
934 Out << " " << getLLVMName(GV->getName(), GlobalPrefix);
935 } else if (const Function *F = dyn_cast<Function>(Aliasee)) {
936 printType(F->getFunctionType());
939 if (!F->getName().empty())
940 Out << getLLVMName(F->getName(), GlobalPrefix);
944 assert(0 && "Unsupported aliasee");
946 printInfoComment(*GA);
950 void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
952 for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
954 Out << "\t" << getLLVMName(TI->first, LocalPrefix) << " = type ";
956 // Make sure we print out at least one level of the type structure, so
957 // that we do not get %FILE = type %FILE
959 printTypeAtLeastOneLevel(TI->second) << "\n";
963 /// printFunction - Print all aspects of a function.
965 void AssemblyWriter::printFunction(const Function *F) {
966 // Print out the return type and name...
969 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
971 if (F->isDeclaration())
972 switch (F->getLinkage()) {
973 case GlobalValue::DLLImportLinkage: Out << "declare dllimport "; break;
974 case GlobalValue::ExternalWeakLinkage: Out << "declare extern_weak "; break;
975 default: Out << "declare ";
979 switch (F->getLinkage()) {
980 case GlobalValue::InternalLinkage: Out << "internal "; break;
981 case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
982 case GlobalValue::WeakLinkage: Out << "weak "; break;
983 case GlobalValue::AppendingLinkage: Out << "appending "; break;
984 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
985 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
986 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
987 case GlobalValue::ExternalLinkage: break;
988 case GlobalValue::GhostLinkage:
989 cerr << "GhostLinkage not allowed in AsmWriter!\n";
992 switch (F->getVisibility()) {
993 default: assert(0 && "Invalid visibility style!");
994 case GlobalValue::DefaultVisibility: break;
995 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
999 // Print the calling convention.
1000 switch (F->getCallingConv()) {
1001 case CallingConv::C: break; // default
1002 case CallingConv::Fast: Out << "fastcc "; break;
1003 case CallingConv::Cold: Out << "coldcc "; break;
1004 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1005 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1006 default: Out << "cc" << F->getCallingConv() << " "; break;
1009 const FunctionType *FT = F->getFunctionType();
1010 const ParamAttrsList *Attrs = FT->getParamAttrs();
1011 printType(F->getReturnType()) << ' ';
1012 if (!F->getName().empty())
1013 Out << getLLVMName(F->getName(), GlobalPrefix);
1017 Machine.incorporateFunction(F);
1019 // Loop over the arguments, printing them...
1022 if (!F->isDeclaration()) {
1023 // If this isn't a declaration, print the argument names as well.
1024 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1026 // Insert commas as we go... the first arg doesn't get a comma
1027 if (I != F->arg_begin()) Out << ", ";
1028 printArgument(I, (Attrs ? Attrs->getParamAttrs(Idx)
1029 : uint16_t(ParamAttr::None)));
1033 // Otherwise, print the types from the function type.
1034 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1035 // Insert commas as we go... the first arg doesn't get a comma
1039 printType(FT->getParamType(i));
1041 unsigned ArgAttrs = ParamAttr::None;
1042 if (Attrs) ArgAttrs = Attrs->getParamAttrs(i+1);
1043 if (ArgAttrs != ParamAttr::None)
1044 Out << ' ' << ParamAttrsList::getParamAttrsText(ArgAttrs);
1048 // Finish printing arguments...
1049 if (FT->isVarArg()) {
1050 if (FT->getNumParams()) Out << ", ";
1051 Out << "..."; // Output varargs portion of signature!
1054 if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None)
1055 Out << ' ' << Attrs->getParamAttrsTextByIndex(0);
1056 if (F->hasSection())
1057 Out << " section \"" << F->getSection() << '"';
1058 if (F->getAlignment())
1059 Out << " align " << F->getAlignment();
1061 if (F->isDeclaration()) {
1066 // Output all of its basic blocks... for the function
1067 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1073 Machine.purgeFunction();
1076 /// printArgument - This member is called for every argument that is passed into
1077 /// the function. Simply print it out
1079 void AssemblyWriter::printArgument(const Argument *Arg, uint16_t Attrs) {
1081 printType(Arg->getType());
1083 if (Attrs != ParamAttr::None)
1084 Out << ' ' << ParamAttrsList::getParamAttrsText(Attrs);
1086 // Output name, if available...
1088 Out << ' ' << getLLVMName(Arg->getName(), LocalPrefix);
1091 /// printBasicBlock - This member is called for each basic block in a method.
1093 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1094 if (BB->hasName()) { // Print out the label if it exists...
1095 Out << "\n" << getLLVMName(BB->getName(), LabelPrefix) << ':';
1096 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1097 Out << "\n; <label>:";
1098 int Slot = Machine.getLocalSlot(BB);
1105 if (BB->getParent() == 0)
1106 Out << "\t\t; Error: Block without parent!";
1108 if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1109 // Output predecessors for the block...
1111 pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
1114 Out << " No predecessors!";
1117 writeOperand(*PI, false);
1118 for (++PI; PI != PE; ++PI) {
1120 writeOperand(*PI, false);
1128 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1130 // Output all of the instructions in the basic block...
1131 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1132 printInstruction(*I);
1134 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1138 /// printInfoComment - Print a little comment after the instruction indicating
1139 /// which slot it occupies.
1141 void AssemblyWriter::printInfoComment(const Value &V) {
1142 if (V.getType() != Type::VoidTy) {
1144 printType(V.getType()) << '>';
1148 if (const GlobalValue *GV = dyn_cast<GlobalValue>(&V))
1149 SlotNum = Machine.getGlobalSlot(GV);
1151 SlotNum = Machine.getLocalSlot(&V);
1155 Out << ':' << SlotNum; // Print out the def slot taken.
1157 Out << " [#uses=" << V.getNumUses() << ']'; // Output # uses
1161 // This member is called for each Instruction in a function..
1162 void AssemblyWriter::printInstruction(const Instruction &I) {
1163 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1167 // Print out name if it exists...
1169 Out << getLLVMName(I.getName(), LocalPrefix) << " = ";
1171 // If this is a volatile load or store, print out the volatile marker.
1172 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1173 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
1175 } else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
1176 // If this is a call, check if it's a tail call.
1180 // Print out the opcode...
1181 Out << I.getOpcodeName();
1183 // Print out the compare instruction predicates
1184 if (const FCmpInst *FCI = dyn_cast<FCmpInst>(&I)) {
1185 Out << " " << getPredicateText(FCI->getPredicate());
1186 } else if (const ICmpInst *ICI = dyn_cast<ICmpInst>(&I)) {
1187 Out << " " << getPredicateText(ICI->getPredicate());
1190 // Print out the type of the operands...
1191 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1193 // Special case conditional branches to swizzle the condition out to the front
1194 if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
1195 writeOperand(I.getOperand(2), true);
1197 writeOperand(Operand, true);
1199 writeOperand(I.getOperand(1), true);
1201 } else if (isa<SwitchInst>(I)) {
1202 // Special case switch statement to get formatting nice and correct...
1203 writeOperand(Operand , true); Out << ',';
1204 writeOperand(I.getOperand(1), true); Out << " [";
1206 for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
1208 writeOperand(I.getOperand(op ), true); Out << ',';
1209 writeOperand(I.getOperand(op+1), true);
1212 } else if (isa<PHINode>(I)) {
1214 printType(I.getType());
1217 for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
1218 if (op) Out << ", ";
1220 writeOperand(I.getOperand(op ), false); Out << ',';
1221 writeOperand(I.getOperand(op+1), false); Out << " ]";
1223 } else if (isa<ReturnInst>(I) && !Operand) {
1225 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1226 // Print the calling convention being used.
1227 switch (CI->getCallingConv()) {
1228 case CallingConv::C: break; // default
1229 case CallingConv::Fast: Out << " fastcc"; break;
1230 case CallingConv::Cold: Out << " coldcc"; break;
1231 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1232 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1233 default: Out << " cc" << CI->getCallingConv(); break;
1236 const PointerType *PTy = cast<PointerType>(Operand->getType());
1237 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1238 const Type *RetTy = FTy->getReturnType();
1239 const ParamAttrsList *PAL = FTy->getParamAttrs();
1241 // If possible, print out the short form of the call instruction. We can
1242 // only do this if the first argument is a pointer to a nonvararg function,
1243 // and if the return type is not a pointer to a function.
1245 if (!FTy->isVarArg() &&
1246 (!isa<PointerType>(RetTy) ||
1247 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1248 Out << ' '; printType(RetTy);
1249 writeOperand(Operand, false);
1251 writeOperand(Operand, true);
1254 for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
1257 writeOperand(I.getOperand(op), true);
1258 if (PAL && PAL->getParamAttrs(op) != ParamAttr::None)
1259 Out << " " << PAL->getParamAttrsTextByIndex(op);
1262 if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
1263 Out << ' ' << PAL->getParamAttrsTextByIndex(0);
1264 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1265 const PointerType *PTy = cast<PointerType>(Operand->getType());
1266 const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1267 const Type *RetTy = FTy->getReturnType();
1268 const ParamAttrsList *PAL = FTy->getParamAttrs();
1270 // Print the calling convention being used.
1271 switch (II->getCallingConv()) {
1272 case CallingConv::C: break; // default
1273 case CallingConv::Fast: Out << " fastcc"; break;
1274 case CallingConv::Cold: Out << " coldcc"; break;
1275 case CallingConv::X86_StdCall: Out << "x86_stdcallcc "; break;
1276 case CallingConv::X86_FastCall: Out << "x86_fastcallcc "; break;
1277 default: Out << " cc" << II->getCallingConv(); break;
1280 // If possible, print out the short form of the invoke instruction. We can
1281 // only do this if the first argument is a pointer to a nonvararg function,
1282 // and if the return type is not a pointer to a function.
1284 if (!FTy->isVarArg() &&
1285 (!isa<PointerType>(RetTy) ||
1286 !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
1287 Out << ' '; printType(RetTy);
1288 writeOperand(Operand, false);
1290 writeOperand(Operand, true);
1294 for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
1297 writeOperand(I.getOperand(op), true);
1298 if (PAL && PAL->getParamAttrs(op-2) != ParamAttr::None)
1299 Out << " " << PAL->getParamAttrsTextByIndex(op-2);
1303 if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
1304 Out << " " << PAL->getParamAttrsTextByIndex(0);
1305 Out << "\n\t\t\tto";
1306 writeOperand(II->getNormalDest(), true);
1308 writeOperand(II->getUnwindDest(), true);
1310 } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
1312 printType(AI->getType()->getElementType());
1313 if (AI->isArrayAllocation()) {
1315 writeOperand(AI->getArraySize(), true);
1317 if (AI->getAlignment()) {
1318 Out << ", align " << AI->getAlignment();
1320 } else if (isa<CastInst>(I)) {
1321 if (Operand) writeOperand(Operand, true); // Work with broken code
1323 printType(I.getType());
1324 } else if (isa<VAArgInst>(I)) {
1325 if (Operand) writeOperand(Operand, true); // Work with broken code
1327 printType(I.getType());
1328 } else if (Operand) { // Print the normal way...
1330 // PrintAllTypes - Instructions who have operands of all the same type
1331 // omit the type from all but the first operand. If the instruction has
1332 // different type operands (for example br), then they are all printed.
1333 bool PrintAllTypes = false;
1334 const Type *TheType = Operand->getType();
1336 // Select, Store and ShuffleVector always print all types.
1337 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)) {
1338 PrintAllTypes = true;
1340 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
1341 Operand = I.getOperand(i);
1342 if (Operand->getType() != TheType) {
1343 PrintAllTypes = true; // We have differing types! Print them all!
1349 if (!PrintAllTypes) {
1354 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
1356 writeOperand(I.getOperand(i), PrintAllTypes);
1360 // Print post operand alignment for load/store
1361 if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
1362 Out << ", align " << cast<LoadInst>(I).getAlignment();
1363 } else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
1364 Out << ", align " << cast<StoreInst>(I).getAlignment();
1367 printInfoComment(I);
1372 //===----------------------------------------------------------------------===//
1373 // External Interface declarations
1374 //===----------------------------------------------------------------------===//
1376 void Module::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1377 SlotMachine SlotTable(this);
1378 AssemblyWriter W(o, SlotTable, this, AAW);
1382 void GlobalVariable::print(std::ostream &o) const {
1383 SlotMachine SlotTable(getParent());
1384 AssemblyWriter W(o, SlotTable, getParent(), 0);
1388 void GlobalAlias::print(std::ostream &o) const {
1389 SlotMachine SlotTable(getParent());
1390 AssemblyWriter W(o, SlotTable, getParent(), 0);
1394 void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1395 SlotMachine SlotTable(getParent());
1396 AssemblyWriter W(o, SlotTable, getParent(), AAW);
1401 void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1402 WriteAsOperand(o, this, true, 0);
1405 void BasicBlock::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1406 SlotMachine SlotTable(getParent());
1407 AssemblyWriter W(o, SlotTable,
1408 getParent() ? getParent()->getParent() : 0, AAW);
1412 void Instruction::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
1413 const Function *F = getParent() ? getParent()->getParent() : 0;
1414 SlotMachine SlotTable(F);
1415 AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0, AAW);
1420 void Constant::print(std::ostream &o) const {
1421 if (this == 0) { o << "<null> constant value\n"; return; }
1423 o << ' ' << getType()->getDescription() << ' ';
1425 std::map<const Type *, std::string> TypeTable;
1426 WriteConstantInt(o, this, TypeTable, 0);
1429 void Type::print(std::ostream &o) const {
1433 o << getDescription();
1436 void Argument::print(std::ostream &o) const {
1437 WriteAsOperand(o, this, true, getParent() ? getParent()->getParent() : 0);
1440 // Value::dump - allow easy printing of Values from the debugger.
1441 // Located here because so much of the needed functionality is here.
1442 void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
1444 // Type::dump - allow easy printing of Values from the debugger.
1445 // Located here because so much of the needed functionality is here.
1446 void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }
1449 ParamAttrsList::dump() const {
1451 for (unsigned i = 0; i < attrs.size(); ++i) {
1452 uint16_t index = getParamIndex(i);
1453 uint16_t attrs = getParamAttrs(index);
1454 cerr << "{" << index << "," << attrs << "} ";
1459 //===----------------------------------------------------------------------===//
1460 // SlotMachine Implementation
1461 //===----------------------------------------------------------------------===//
1464 #define SC_DEBUG(X) cerr << X
1469 // Module level constructor. Causes the contents of the Module (sans functions)
1470 // to be added to the slot table.
1471 SlotMachine::SlotMachine(const Module *M)
1472 : TheModule(M) ///< Saved for lazy initialization.
1474 , FunctionProcessed(false)
1475 , mMap(), mNext(0), fMap(), fNext(0)
1479 // Function level constructor. Causes the contents of the Module and the one
1480 // function provided to be added to the slot table.
1481 SlotMachine::SlotMachine(const Function *F)
1482 : TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
1483 , TheFunction(F) ///< Saved for lazy initialization
1484 , FunctionProcessed(false)
1485 , mMap(), mNext(0), fMap(), fNext(0)
1489 inline void SlotMachine::initialize() {
1492 TheModule = 0; ///< Prevent re-processing next time we're called.
1494 if (TheFunction && !FunctionProcessed)
1498 // Iterate through all the global variables, functions, and global
1499 // variable initializers and create slots for them.
1500 void SlotMachine::processModule() {
1501 SC_DEBUG("begin processModule!\n");
1503 // Add all of the unnamed global variables to the value table.
1504 for (Module::const_global_iterator I = TheModule->global_begin(),
1505 E = TheModule->global_end(); I != E; ++I)
1507 CreateModuleSlot(I);
1509 // Add all the unnamed functions to the table.
1510 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1513 CreateModuleSlot(I);
1515 SC_DEBUG("end processModule!\n");
1519 // Process the arguments, basic blocks, and instructions of a function.
1520 void SlotMachine::processFunction() {
1521 SC_DEBUG("begin processFunction!\n");
1524 // Add all the function arguments with no names.
1525 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
1526 AE = TheFunction->arg_end(); AI != AE; ++AI)
1528 CreateFunctionSlot(AI);
1530 SC_DEBUG("Inserting Instructions:\n");
1532 // Add all of the basic blocks and instructions with no names.
1533 for (Function::const_iterator BB = TheFunction->begin(),
1534 E = TheFunction->end(); BB != E; ++BB) {
1536 CreateFunctionSlot(BB);
1537 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
1538 if (I->getType() != Type::VoidTy && !I->hasName())
1539 CreateFunctionSlot(I);
1542 FunctionProcessed = true;
1544 SC_DEBUG("end processFunction!\n");
1547 /// Clean up after incorporating a function. This is the only way to get out of
1548 /// the function incorporation state that affects get*Slot/Create*Slot. Function
1549 /// incorporation state is indicated by TheFunction != 0.
1550 void SlotMachine::purgeFunction() {
1551 SC_DEBUG("begin purgeFunction!\n");
1552 fMap.clear(); // Simply discard the function level map
1554 FunctionProcessed = false;
1555 SC_DEBUG("end purgeFunction!\n");
1558 /// getGlobalSlot - Get the slot number of a global value.
1559 int SlotMachine::getGlobalSlot(const GlobalValue *V) {
1560 // Check for uninitialized state and do lazy initialization.
1563 // Find the type plane in the module map
1564 ValueMap::const_iterator MI = mMap.find(V);
1565 if (MI == mMap.end()) return -1;
1571 /// getLocalSlot - Get the slot number for a value that is local to a function.
1572 int SlotMachine::getLocalSlot(const Value *V) {
1573 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
1575 // Check for uninitialized state and do lazy initialization.
1578 ValueMap::const_iterator FI = fMap.find(V);
1579 if (FI == fMap.end()) return -1;
1585 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
1586 void SlotMachine::CreateModuleSlot(const GlobalValue *V) {
1587 assert(V && "Can't insert a null Value into SlotMachine!");
1588 assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
1589 assert(!V->hasName() && "Doesn't need a slot!");
1591 unsigned DestSlot = mNext++;
1594 SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
1596 // G = Global, F = Function, A = Alias, o = other
1597 SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
1598 (isa<Function> ? 'F' :
1599 (isa<GlobalAlias> ? 'A' : 'o'))) << "]\n");
1603 /// CreateSlot - Create a new slot for the specified value if it has no name.
1604 void SlotMachine::CreateFunctionSlot(const Value *V) {
1605 const Type *VTy = V->getType();
1606 assert(VTy != Type::VoidTy && !V->hasName() && "Doesn't need a slot!");
1608 unsigned DestSlot = fNext++;
1611 // G = Global, F = Function, o = other
1612 SC_DEBUG(" Inserting value [" << VTy << "] = " << V << " slot=" <<
1613 DestSlot << " [o]\n");