1 //===-- CppWriter.cpp - Printing LLVM IR as a C++ Source 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 file implements the writing of the LLVM IR as a set of C++ calls to the
11 // LLVM IR interface. The input module is assumed to be verified.
13 //===----------------------------------------------------------------------===//
15 #include "llvm/CallingConv.h"
16 #include "llvm/Constants.h"
17 #include "llvm/DerivedTypes.h"
18 #include "llvm/InlineAsm.h"
19 #include "llvm/Instruction.h"
20 #include "llvm/Instructions.h"
21 #include "llvm/Module.h"
22 #include "llvm/TypeSymbolTable.h"
23 #include "llvm/ADT/StringExtras.h"
24 #include "llvm/ADT/STLExtras.h"
25 #include "llvm/ADT/SmallPtrSet.h"
26 #include "llvm/Support/CommandLine.h"
27 #include "llvm/Support/CFG.h"
28 #include "llvm/Support/ManagedStatic.h"
29 #include "llvm/Support/MathExtras.h"
30 #include "llvm/Config/config.h"
37 static cl::opt<std::string>
38 FuncName("funcname", cl::desc("Specify the name of the generated function"),
39 cl::value_desc("function name"));
52 static cl::opt<WhatToGenerate> GenerationType(cl::Optional,
53 cl::desc("Choose what kind of output to generate"),
56 clEnumValN(GenProgram, "gen-program", "Generate a complete program"),
57 clEnumValN(GenModule, "gen-module", "Generate a module definition"),
58 clEnumValN(GenContents, "gen-contents", "Generate contents of a module"),
59 clEnumValN(GenFunction, "gen-function", "Generate a function definition"),
60 clEnumValN(GenFunctions,"gen-functions", "Generate all function definitions"),
61 clEnumValN(GenInline, "gen-inline", "Generate an inline function"),
62 clEnumValN(GenVariable, "gen-variable", "Generate a variable definition"),
63 clEnumValN(GenType, "gen-type", "Generate a type definition"),
68 static cl::opt<std::string> NameToGenerate("for", cl::Optional,
69 cl::desc("Specify the name of the thing to generate"),
73 typedef std::vector<const Type*> TypeList;
74 typedef std::map<const Type*,std::string> TypeMap;
75 typedef std::map<const Value*,std::string> ValueMap;
76 typedef std::set<std::string> NameSet;
77 typedef std::set<const Type*> TypeSet;
78 typedef std::set<const Value*> ValueSet;
79 typedef std::map<const Value*,std::string> ForwardRefMap;
84 const Module *TheModule;
88 TypeMap UnresolvedTypes;
92 ValueSet DefinedValues;
93 ForwardRefMap ForwardRefs;
97 inline CppWriter(std::ostream &o, const Module *M, const char* pn="llvm2cpp")
98 : progname(pn), Out(o), TheModule(M), uniqueNum(0), TypeNames(),
99 ValueNames(), UnresolvedTypes(), TypeStack(), is_inline(false) { }
101 const Module* getModule() { return TheModule; }
103 void printProgram(const std::string& fname, const std::string& modName );
104 void printModule(const std::string& fname, const std::string& modName );
105 void printContents(const std::string& fname, const std::string& modName );
106 void printFunction(const std::string& fname, const std::string& funcName );
107 void printFunctions();
108 void printInline(const std::string& fname, const std::string& funcName );
109 void printVariable(const std::string& fname, const std::string& varName );
110 void printType(const std::string& fname, const std::string& typeName );
112 void error(const std::string& msg);
115 void printLinkageType(GlobalValue::LinkageTypes LT);
116 void printVisibilityType(GlobalValue::VisibilityTypes VisTypes);
117 void printCallingConv(unsigned cc);
118 void printEscapedString(const std::string& str);
119 void printCFP(const ConstantFP* CFP);
121 std::string getCppName(const Type* val);
122 inline void printCppName(const Type* val);
124 std::string getCppName(const Value* val);
125 inline void printCppName(const Value* val);
127 void printParamAttrs(const PAListPtr &PAL, const std::string &name);
128 bool printTypeInternal(const Type* Ty);
129 inline void printType(const Type* Ty);
130 void printTypes(const Module* M);
132 void printConstant(const Constant *CPV);
133 void printConstants(const Module* M);
135 void printVariableUses(const GlobalVariable *GV);
136 void printVariableHead(const GlobalVariable *GV);
137 void printVariableBody(const GlobalVariable *GV);
139 void printFunctionUses(const Function *F);
140 void printFunctionHead(const Function *F);
141 void printFunctionBody(const Function *F);
142 void printInstruction(const Instruction *I, const std::string& bbname);
143 std::string getOpName(Value*);
145 void printModuleBody();
149 static unsigned indent_level = 0;
150 inline std::ostream& nl(std::ostream& Out, int delta = 0) {
152 if (delta >= 0 || indent_level >= unsigned(-delta))
153 indent_level += delta;
154 for (unsigned i = 0; i < indent_level; ++i)
159 inline void in() { indent_level++; }
160 inline void out() { if (indent_level >0) indent_level--; }
163 sanitize(std::string& str) {
164 for (size_t i = 0; i < str.length(); ++i)
165 if (!isalnum(str[i]) && str[i] != '_')
170 getTypePrefix(const Type* Ty ) {
171 switch (Ty->getTypeID()) {
172 case Type::VoidTyID: return "void_";
173 case Type::IntegerTyID:
174 return std::string("int") + utostr(cast<IntegerType>(Ty)->getBitWidth()) +
176 case Type::FloatTyID: return "float_";
177 case Type::DoubleTyID: return "double_";
178 case Type::LabelTyID: return "label_";
179 case Type::FunctionTyID: return "func_";
180 case Type::StructTyID: return "struct_";
181 case Type::ArrayTyID: return "array_";
182 case Type::PointerTyID: return "ptr_";
183 case Type::VectorTyID: return "packed_";
184 case Type::OpaqueTyID: return "opaque_";
185 default: return "other_";
190 // Looks up the type in the symbol table and returns a pointer to its name or
191 // a null pointer if it wasn't found. Note that this isn't the same as the
192 // Mode::getTypeName function which will return an empty string, not a null
193 // pointer if the name is not found.
194 inline const std::string*
195 findTypeName(const TypeSymbolTable& ST, const Type* Ty)
197 TypeSymbolTable::const_iterator TI = ST.begin();
198 TypeSymbolTable::const_iterator TE = ST.end();
199 for (;TI != TE; ++TI)
200 if (TI->second == Ty)
206 CppWriter::error(const std::string& msg) {
207 std::cerr << progname << ": " << msg << "\n";
211 // printCFP - Print a floating point constant .. very carefully :)
212 // This makes sure that conversion to/from floating yields the same binary
213 // result so that we don't lose precision.
215 CppWriter::printCFP(const ConstantFP *CFP) {
216 APFloat APF = APFloat(CFP->getValueAPF()); // copy
217 if (CFP->getType() == Type::FloatTy)
218 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven);
219 Out << "ConstantFP::get(";
220 if (CFP->getType() == Type::DoubleTy)
221 Out << "Type::DoubleTy, ";
223 Out << "Type::FloatTy, ";
227 sprintf(Buffer, "%A", APF.convertToDouble());
228 if ((!strncmp(Buffer, "0x", 2) ||
229 !strncmp(Buffer, "-0x", 3) ||
230 !strncmp(Buffer, "+0x", 3)) &&
231 APF.bitwiseIsEqual(APFloat(atof(Buffer)))) {
232 if (CFP->getType() == Type::DoubleTy)
233 Out << "BitsToDouble(" << Buffer << ")";
235 Out << "BitsToFloat((float)" << Buffer << ")";
239 std::string StrVal = ftostr(CFP->getValueAPF());
241 while (StrVal[0] == ' ')
242 StrVal.erase(StrVal.begin());
244 // Check to make sure that the stringized number is not some string like
245 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex.
246 if (((StrVal[0] >= '0' && StrVal[0] <= '9') ||
247 ((StrVal[0] == '-' || StrVal[0] == '+') &&
248 (StrVal[1] >= '0' && StrVal[1] <= '9'))) &&
249 (CFP->isExactlyValue(atof(StrVal.c_str())))) {
250 if (CFP->getType() == Type::DoubleTy)
253 Out << StrVal << "f";
255 else if (CFP->getType() == Type::DoubleTy)
256 Out << "BitsToDouble(0x" << std::hex
257 << CFP->getValueAPF().convertToAPInt().getZExtValue()
258 << std::dec << "ULL) /* " << StrVal << " */";
260 Out << "BitsToFloat(0x" << std::hex
261 << (uint32_t)CFP->getValueAPF().convertToAPInt().getZExtValue()
262 << std::dec << "U) /* " << StrVal << " */";
271 CppWriter::printCallingConv(unsigned cc){
272 // Print the calling convention.
274 case CallingConv::C: Out << "CallingConv::C"; break;
275 case CallingConv::Fast: Out << "CallingConv::Fast"; break;
276 case CallingConv::Cold: Out << "CallingConv::Cold"; break;
277 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break;
278 default: Out << cc; break;
283 CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
285 case GlobalValue::InternalLinkage:
286 Out << "GlobalValue::InternalLinkage"; break;
287 case GlobalValue::LinkOnceLinkage:
288 Out << "GlobalValue::LinkOnceLinkage "; break;
289 case GlobalValue::WeakLinkage:
290 Out << "GlobalValue::WeakLinkage"; break;
291 case GlobalValue::AppendingLinkage:
292 Out << "GlobalValue::AppendingLinkage"; break;
293 case GlobalValue::ExternalLinkage:
294 Out << "GlobalValue::ExternalLinkage"; break;
295 case GlobalValue::DLLImportLinkage:
296 Out << "GlobalValue::DLLImportLinkage"; break;
297 case GlobalValue::DLLExportLinkage:
298 Out << "GlobalValue::DLLExportLinkage"; break;
299 case GlobalValue::ExternalWeakLinkage:
300 Out << "GlobalValue::ExternalWeakLinkage"; break;
301 case GlobalValue::GhostLinkage:
302 Out << "GlobalValue::GhostLinkage"; break;
307 CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) {
309 default: assert(0 && "Unknown GVar visibility");
310 case GlobalValue::DefaultVisibility:
311 Out << "GlobalValue::DefaultVisibility";
313 case GlobalValue::HiddenVisibility:
314 Out << "GlobalValue::HiddenVisibility";
316 case GlobalValue::ProtectedVisibility:
317 Out << "GlobalValue::ProtectedVisibility";
322 // printEscapedString - Print each character of the specified string, escaping
323 // it if it is not printable or if it is an escape char.
325 CppWriter::printEscapedString(const std::string &Str) {
326 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
327 unsigned char C = Str[i];
328 if (isprint(C) && C != '"' && C != '\\') {
332 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
333 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
339 CppWriter::getCppName(const Type* Ty)
341 // First, handle the primitive types .. easy
342 if (Ty->isPrimitiveType() || Ty->isInteger()) {
343 switch (Ty->getTypeID()) {
344 case Type::VoidTyID: return "Type::VoidTy";
345 case Type::IntegerTyID: {
346 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
347 return "IntegerType::get(" + utostr(BitWidth) + ")";
349 case Type::FloatTyID: return "Type::FloatTy";
350 case Type::DoubleTyID: return "Type::DoubleTy";
351 case Type::LabelTyID: return "Type::LabelTy";
353 error("Invalid primitive type");
356 return "Type::VoidTy"; // shouldn't be returned, but make it sensible
359 // Now, see if we've seen the type before and return that
360 TypeMap::iterator I = TypeNames.find(Ty);
361 if (I != TypeNames.end())
364 // Okay, let's build a new name for this type. Start with a prefix
365 const char* prefix = 0;
366 switch (Ty->getTypeID()) {
367 case Type::FunctionTyID: prefix = "FuncTy_"; break;
368 case Type::StructTyID: prefix = "StructTy_"; break;
369 case Type::ArrayTyID: prefix = "ArrayTy_"; break;
370 case Type::PointerTyID: prefix = "PointerTy_"; break;
371 case Type::OpaqueTyID: prefix = "OpaqueTy_"; break;
372 case Type::VectorTyID: prefix = "VectorTy_"; break;
373 default: prefix = "OtherTy_"; break; // prevent breakage
376 // See if the type has a name in the symboltable and build accordingly
377 const std::string* tName = findTypeName(TheModule->getTypeSymbolTable(), Ty);
380 name = std::string(prefix) + *tName;
382 name = std::string(prefix) + utostr(uniqueNum++);
386 return TypeNames[Ty] = name;
390 CppWriter::printCppName(const Type* Ty)
392 printEscapedString(getCppName(Ty));
396 CppWriter::getCppName(const Value* val) {
398 ValueMap::iterator I = ValueNames.find(val);
399 if (I != ValueNames.end() && I->first == val)
402 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) {
403 name = std::string("gvar_") +
404 getTypePrefix(GV->getType()->getElementType());
405 } else if (isa<Function>(val)) {
406 name = std::string("func_");
407 } else if (const Constant* C = dyn_cast<Constant>(val)) {
408 name = std::string("const_") + getTypePrefix(C->getType());
409 } else if (const Argument* Arg = dyn_cast<Argument>(val)) {
411 unsigned argNum = std::distance(Arg->getParent()->arg_begin(),
412 Function::const_arg_iterator(Arg)) + 1;
413 name = std::string("arg_") + utostr(argNum);
414 NameSet::iterator NI = UsedNames.find(name);
415 if (NI != UsedNames.end())
416 name += std::string("_") + utostr(uniqueNum++);
417 UsedNames.insert(name);
418 return ValueNames[val] = name;
420 name = getTypePrefix(val->getType());
423 name = getTypePrefix(val->getType());
425 name += (val->hasName() ? val->getName() : utostr(uniqueNum++));
427 NameSet::iterator NI = UsedNames.find(name);
428 if (NI != UsedNames.end())
429 name += std::string("_") + utostr(uniqueNum++);
430 UsedNames.insert(name);
431 return ValueNames[val] = name;
435 CppWriter::printCppName(const Value* val) {
436 printEscapedString(getCppName(val));
440 CppWriter::printParamAttrs(const PAListPtr &PAL, const std::string &name) {
441 Out << "PAListPtr " << name << "_PAL = 0;";
443 if (!PAL.isEmpty()) {
444 Out << '{'; in(); nl(Out);
445 Out << "SmallVector<ParamAttrsWithIndex, 4> Attrs;"; nl(Out);
446 Out << "ParamAttrsWithIndex PAWI;"; nl(Out);
447 for (unsigned i = 0; i < PAL.getNumSlots(); ++i) {
448 uint16_t index = PAL.getSlot(i).Index;
449 ParameterAttributes attrs = PAL.getSlot(i).Attrs;
450 Out << "PAWI.index = " << index << "; PAWI.attrs = 0 ";
451 if (attrs & ParamAttr::SExt)
452 Out << " | ParamAttr::SExt";
453 if (attrs & ParamAttr::ZExt)
454 Out << " | ParamAttr::ZExt";
455 if (attrs & ParamAttr::StructRet)
456 Out << " | ParamAttr::StructRet";
457 if (attrs & ParamAttr::InReg)
458 Out << " | ParamAttr::InReg";
459 if (attrs & ParamAttr::NoReturn)
460 Out << " | ParamAttr::NoReturn";
461 if (attrs & ParamAttr::NoUnwind)
462 Out << " | ParamAttr::NoUnwind";
463 if (attrs & ParamAttr::ByVal)
464 Out << " | ParamAttr::ByVal";
465 if (attrs & ParamAttr::NoAlias)
466 Out << " | ParamAttr::NoAlias";
467 if (attrs & ParamAttr::Nest)
468 Out << " | ParamAttr::Nest";
469 if (attrs & ParamAttr::ReadNone)
470 Out << " | ParamAttr::ReadNone";
471 if (attrs & ParamAttr::ReadOnly)
472 Out << " | ParamAttr::ReadOnly";
475 Out << "Attrs.push_back(PAWI);";
478 Out << name << "_PAL = PAListPtr::get(Attrs.begin(), Attrs.end());";
486 CppWriter::printTypeInternal(const Type* Ty) {
487 // We don't print definitions for primitive types
488 if (Ty->isPrimitiveType() || Ty->isInteger())
491 // If we already defined this type, we don't need to define it again.
492 if (DefinedTypes.find(Ty) != DefinedTypes.end())
495 // Everything below needs the name for the type so get it now.
496 std::string typeName(getCppName(Ty));
498 // Search the type stack for recursion. If we find it, then generate this
499 // as an OpaqueType, but make sure not to do this multiple times because
500 // the type could appear in multiple places on the stack. Once the opaque
501 // definition is issued, it must not be re-issued. Consequently we have to
502 // check the UnresolvedTypes list as well.
503 TypeList::const_iterator TI = std::find(TypeStack.begin(),TypeStack.end(),Ty);
504 if (TI != TypeStack.end()) {
505 TypeMap::const_iterator I = UnresolvedTypes.find(Ty);
506 if (I == UnresolvedTypes.end()) {
507 Out << "PATypeHolder " << typeName << "_fwd = OpaqueType::get();";
509 UnresolvedTypes[Ty] = typeName;
514 // We're going to print a derived type which, by definition, contains other
515 // types. So, push this one we're printing onto the type stack to assist with
516 // recursive definitions.
517 TypeStack.push_back(Ty);
519 // Print the type definition
520 switch (Ty->getTypeID()) {
521 case Type::FunctionTyID: {
522 const FunctionType* FT = cast<FunctionType>(Ty);
523 Out << "std::vector<const Type*>" << typeName << "_args;";
525 FunctionType::param_iterator PI = FT->param_begin();
526 FunctionType::param_iterator PE = FT->param_end();
527 for (; PI != PE; ++PI) {
528 const Type* argTy = static_cast<const Type*>(*PI);
529 bool isForward = printTypeInternal(argTy);
530 std::string argName(getCppName(argTy));
531 Out << typeName << "_args.push_back(" << argName;
537 bool isForward = printTypeInternal(FT->getReturnType());
538 std::string retTypeName(getCppName(FT->getReturnType()));
539 Out << "FunctionType* " << typeName << " = FunctionType::get(";
540 in(); nl(Out) << "/*Result=*/" << retTypeName;
544 nl(Out) << "/*Params=*/" << typeName << "_args,";
545 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");";
550 case Type::StructTyID: {
551 const StructType* ST = cast<StructType>(Ty);
552 Out << "std::vector<const Type*>" << typeName << "_fields;";
554 StructType::element_iterator EI = ST->element_begin();
555 StructType::element_iterator EE = ST->element_end();
556 for (; EI != EE; ++EI) {
557 const Type* fieldTy = static_cast<const Type*>(*EI);
558 bool isForward = printTypeInternal(fieldTy);
559 std::string fieldName(getCppName(fieldTy));
560 Out << typeName << "_fields.push_back(" << fieldName;
566 Out << "StructType* " << typeName << " = StructType::get("
567 << typeName << "_fields, /*isPacked=*/"
568 << (ST->isPacked() ? "true" : "false") << ");";
572 case Type::ArrayTyID: {
573 const ArrayType* AT = cast<ArrayType>(Ty);
574 const Type* ET = AT->getElementType();
575 bool isForward = printTypeInternal(ET);
576 std::string elemName(getCppName(ET));
577 Out << "ArrayType* " << typeName << " = ArrayType::get("
578 << elemName << (isForward ? "_fwd" : "")
579 << ", " << utostr(AT->getNumElements()) << ");";
583 case Type::PointerTyID: {
584 const PointerType* PT = cast<PointerType>(Ty);
585 const Type* ET = PT->getElementType();
586 bool isForward = printTypeInternal(ET);
587 std::string elemName(getCppName(ET));
588 Out << "PointerType* " << typeName << " = PointerType::get("
589 << elemName << (isForward ? "_fwd" : "")
590 << ", " << utostr(PT->getAddressSpace()) << ");";
594 case Type::VectorTyID: {
595 const VectorType* PT = cast<VectorType>(Ty);
596 const Type* ET = PT->getElementType();
597 bool isForward = printTypeInternal(ET);
598 std::string elemName(getCppName(ET));
599 Out << "VectorType* " << typeName << " = VectorType::get("
600 << elemName << (isForward ? "_fwd" : "")
601 << ", " << utostr(PT->getNumElements()) << ");";
605 case Type::OpaqueTyID: {
606 Out << "OpaqueType* " << typeName << " = OpaqueType::get();";
611 error("Invalid TypeID");
614 // If the type had a name, make sure we recreate it.
615 const std::string* progTypeName =
616 findTypeName(TheModule->getTypeSymbolTable(),Ty);
618 Out << "mod->addTypeName(\"" << *progTypeName << "\", "
623 // Pop us off the type stack
624 TypeStack.pop_back();
626 // Indicate that this type is now defined.
627 DefinedTypes.insert(Ty);
629 // Early resolve as many unresolved types as possible. Search the unresolved
630 // types map for the type we just printed. Now that its definition is complete
631 // we can resolve any previous references to it. This prevents a cascade of
633 TypeMap::iterator I = UnresolvedTypes.find(Ty);
634 if (I != UnresolvedTypes.end()) {
635 Out << "cast<OpaqueType>(" << I->second
636 << "_fwd.get())->refineAbstractTypeTo(" << I->second << ");";
638 Out << I->second << " = cast<";
639 switch (Ty->getTypeID()) {
640 case Type::FunctionTyID: Out << "FunctionType"; break;
641 case Type::ArrayTyID: Out << "ArrayType"; break;
642 case Type::StructTyID: Out << "StructType"; break;
643 case Type::VectorTyID: Out << "VectorType"; break;
644 case Type::PointerTyID: Out << "PointerType"; break;
645 case Type::OpaqueTyID: Out << "OpaqueType"; break;
646 default: Out << "NoSuchDerivedType"; break;
648 Out << ">(" << I->second << "_fwd.get());";
650 UnresolvedTypes.erase(I);
653 // Finally, separate the type definition from other with a newline.
656 // We weren't a recursive type
660 // Prints a type definition. Returns true if it could not resolve all the types
661 // in the definition but had to use a forward reference.
663 CppWriter::printType(const Type* Ty) {
664 assert(TypeStack.empty());
666 printTypeInternal(Ty);
667 assert(TypeStack.empty());
671 CppWriter::printTypes(const Module* M) {
673 // Walk the symbol table and print out all its types
674 const TypeSymbolTable& symtab = M->getTypeSymbolTable();
675 for (TypeSymbolTable::const_iterator TI = symtab.begin(), TE = symtab.end();
678 // For primitive types and types already defined, just add a name
679 TypeMap::const_iterator TNI = TypeNames.find(TI->second);
680 if (TI->second->isInteger() || TI->second->isPrimitiveType() ||
681 TNI != TypeNames.end()) {
682 Out << "mod->addTypeName(\"";
683 printEscapedString(TI->first);
684 Out << "\", " << getCppName(TI->second) << ");";
686 // For everything else, define the type
688 printType(TI->second);
692 // Add all of the global variables to the value table...
693 for (Module::const_global_iterator I = TheModule->global_begin(),
694 E = TheModule->global_end(); I != E; ++I) {
695 if (I->hasInitializer())
696 printType(I->getInitializer()->getType());
697 printType(I->getType());
700 // Add all the functions to the table
701 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
703 printType(FI->getReturnType());
704 printType(FI->getFunctionType());
705 // Add all the function arguments
706 for(Function::const_arg_iterator AI = FI->arg_begin(),
707 AE = FI->arg_end(); AI != AE; ++AI) {
708 printType(AI->getType());
711 // Add all of the basic blocks and instructions
712 for (Function::const_iterator BB = FI->begin(),
713 E = FI->end(); BB != E; ++BB) {
714 printType(BB->getType());
715 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
717 printType(I->getType());
718 for (unsigned i = 0; i < I->getNumOperands(); ++i)
719 printType(I->getOperand(i)->getType());
726 // printConstant - Print out a constant pool entry...
727 void CppWriter::printConstant(const Constant *CV) {
728 // First, if the constant is actually a GlobalValue (variable or function) or
729 // its already in the constant list then we've printed it already and we can
731 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end())
734 std::string constName(getCppName(CV));
735 std::string typeName(getCppName(CV->getType()));
736 if (CV->isNullValue()) {
737 Out << "Constant* " << constName << " = Constant::getNullValue("
742 if (isa<GlobalValue>(CV)) {
743 // Skip variables and functions, we emit them elsewhere
746 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
747 Out << "ConstantInt* " << constName << " = ConstantInt::get(APInt("
748 << cast<IntegerType>(CI->getType())->getBitWidth() << ", "
749 << " \"" << CI->getValue().toStringSigned(10) << "\", 10));";
750 } else if (isa<ConstantAggregateZero>(CV)) {
751 Out << "ConstantAggregateZero* " << constName
752 << " = ConstantAggregateZero::get(" << typeName << ");";
753 } else if (isa<ConstantPointerNull>(CV)) {
754 Out << "ConstantPointerNull* " << constName
755 << " = ConstanPointerNull::get(" << typeName << ");";
756 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
757 Out << "ConstantFP* " << constName << " = ";
760 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
761 if (CA->isString() && CA->getType()->getElementType() == Type::Int8Ty) {
762 Out << "Constant* " << constName << " = ConstantArray::get(\"";
763 std::string tmp = CA->getAsString();
764 bool nullTerminate = false;
765 if (tmp[tmp.length()-1] == 0) {
766 tmp.erase(tmp.length()-1);
767 nullTerminate = true;
769 printEscapedString(tmp);
770 // Determine if we want null termination or not.
772 Out << "\", true"; // Indicate that the null terminator should be added.
774 Out << "\", false";// No null terminator
777 Out << "std::vector<Constant*> " << constName << "_elems;";
779 unsigned N = CA->getNumOperands();
780 for (unsigned i = 0; i < N; ++i) {
781 printConstant(CA->getOperand(i)); // recurse to print operands
782 Out << constName << "_elems.push_back("
783 << getCppName(CA->getOperand(i)) << ");";
786 Out << "Constant* " << constName << " = ConstantArray::get("
787 << typeName << ", " << constName << "_elems);";
789 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
790 Out << "std::vector<Constant*> " << constName << "_fields;";
792 unsigned N = CS->getNumOperands();
793 for (unsigned i = 0; i < N; i++) {
794 printConstant(CS->getOperand(i));
795 Out << constName << "_fields.push_back("
796 << getCppName(CS->getOperand(i)) << ");";
799 Out << "Constant* " << constName << " = ConstantStruct::get("
800 << typeName << ", " << constName << "_fields);";
801 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
802 Out << "std::vector<Constant*> " << constName << "_elems;";
804 unsigned N = CP->getNumOperands();
805 for (unsigned i = 0; i < N; ++i) {
806 printConstant(CP->getOperand(i));
807 Out << constName << "_elems.push_back("
808 << getCppName(CP->getOperand(i)) << ");";
811 Out << "Constant* " << constName << " = ConstantVector::get("
812 << typeName << ", " << constName << "_elems);";
813 } else if (isa<UndefValue>(CV)) {
814 Out << "UndefValue* " << constName << " = UndefValue::get("
816 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
817 if (CE->getOpcode() == Instruction::GetElementPtr) {
818 Out << "std::vector<Constant*> " << constName << "_indices;";
820 printConstant(CE->getOperand(0));
821 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) {
822 printConstant(CE->getOperand(i));
823 Out << constName << "_indices.push_back("
824 << getCppName(CE->getOperand(i)) << ");";
827 Out << "Constant* " << constName
828 << " = ConstantExpr::getGetElementPtr("
829 << getCppName(CE->getOperand(0)) << ", "
830 << "&" << constName << "_indices[0], "
831 << constName << "_indices.size()"
833 } else if (CE->isCast()) {
834 printConstant(CE->getOperand(0));
835 Out << "Constant* " << constName << " = ConstantExpr::getCast(";
836 switch (CE->getOpcode()) {
837 default: assert(0 && "Invalid cast opcode");
838 case Instruction::Trunc: Out << "Instruction::Trunc"; break;
839 case Instruction::ZExt: Out << "Instruction::ZExt"; break;
840 case Instruction::SExt: Out << "Instruction::SExt"; break;
841 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break;
842 case Instruction::FPExt: Out << "Instruction::FPExt"; break;
843 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break;
844 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break;
845 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break;
846 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break;
847 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break;
848 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break;
849 case Instruction::BitCast: Out << "Instruction::BitCast"; break;
851 Out << ", " << getCppName(CE->getOperand(0)) << ", "
852 << getCppName(CE->getType()) << ");";
854 unsigned N = CE->getNumOperands();
855 for (unsigned i = 0; i < N; ++i ) {
856 printConstant(CE->getOperand(i));
858 Out << "Constant* " << constName << " = ConstantExpr::";
859 switch (CE->getOpcode()) {
860 case Instruction::Add: Out << "getAdd("; break;
861 case Instruction::Sub: Out << "getSub("; break;
862 case Instruction::Mul: Out << "getMul("; break;
863 case Instruction::UDiv: Out << "getUDiv("; break;
864 case Instruction::SDiv: Out << "getSDiv("; break;
865 case Instruction::FDiv: Out << "getFDiv("; break;
866 case Instruction::URem: Out << "getURem("; break;
867 case Instruction::SRem: Out << "getSRem("; break;
868 case Instruction::FRem: Out << "getFRem("; break;
869 case Instruction::And: Out << "getAnd("; break;
870 case Instruction::Or: Out << "getOr("; break;
871 case Instruction::Xor: Out << "getXor("; break;
872 case Instruction::ICmp:
873 Out << "getICmp(ICmpInst::ICMP_";
874 switch (CE->getPredicate()) {
875 case ICmpInst::ICMP_EQ: Out << "EQ"; break;
876 case ICmpInst::ICMP_NE: Out << "NE"; break;
877 case ICmpInst::ICMP_SLT: Out << "SLT"; break;
878 case ICmpInst::ICMP_ULT: Out << "ULT"; break;
879 case ICmpInst::ICMP_SGT: Out << "SGT"; break;
880 case ICmpInst::ICMP_UGT: Out << "UGT"; break;
881 case ICmpInst::ICMP_SLE: Out << "SLE"; break;
882 case ICmpInst::ICMP_ULE: Out << "ULE"; break;
883 case ICmpInst::ICMP_SGE: Out << "SGE"; break;
884 case ICmpInst::ICMP_UGE: Out << "UGE"; break;
885 default: error("Invalid ICmp Predicate");
888 case Instruction::FCmp:
889 Out << "getFCmp(FCmpInst::FCMP_";
890 switch (CE->getPredicate()) {
891 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break;
892 case FCmpInst::FCMP_ORD: Out << "ORD"; break;
893 case FCmpInst::FCMP_UNO: Out << "UNO"; break;
894 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break;
895 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break;
896 case FCmpInst::FCMP_ONE: Out << "ONE"; break;
897 case FCmpInst::FCMP_UNE: Out << "UNE"; break;
898 case FCmpInst::FCMP_OLT: Out << "OLT"; break;
899 case FCmpInst::FCMP_ULT: Out << "ULT"; break;
900 case FCmpInst::FCMP_OGT: Out << "OGT"; break;
901 case FCmpInst::FCMP_UGT: Out << "UGT"; break;
902 case FCmpInst::FCMP_OLE: Out << "OLE"; break;
903 case FCmpInst::FCMP_ULE: Out << "ULE"; break;
904 case FCmpInst::FCMP_OGE: Out << "OGE"; break;
905 case FCmpInst::FCMP_UGE: Out << "UGE"; break;
906 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break;
907 default: error("Invalid FCmp Predicate");
910 case Instruction::Shl: Out << "getShl("; break;
911 case Instruction::LShr: Out << "getLShr("; break;
912 case Instruction::AShr: Out << "getAShr("; break;
913 case Instruction::Select: Out << "getSelect("; break;
914 case Instruction::ExtractElement: Out << "getExtractElement("; break;
915 case Instruction::InsertElement: Out << "getInsertElement("; break;
916 case Instruction::ShuffleVector: Out << "getShuffleVector("; break;
918 error("Invalid constant expression");
921 Out << getCppName(CE->getOperand(0));
922 for (unsigned i = 1; i < CE->getNumOperands(); ++i)
923 Out << ", " << getCppName(CE->getOperand(i));
927 error("Bad Constant");
928 Out << "Constant* " << constName << " = 0; ";
934 CppWriter::printConstants(const Module* M) {
935 // Traverse all the global variables looking for constant initializers
936 for (Module::const_global_iterator I = TheModule->global_begin(),
937 E = TheModule->global_end(); I != E; ++I)
938 if (I->hasInitializer())
939 printConstant(I->getInitializer());
941 // Traverse the LLVM functions looking for constants
942 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
944 // Add all of the basic blocks and instructions
945 for (Function::const_iterator BB = FI->begin(),
946 E = FI->end(); BB != E; ++BB) {
947 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
949 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
950 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) {
959 void CppWriter::printVariableUses(const GlobalVariable *GV) {
960 nl(Out) << "// Type Definitions";
962 printType(GV->getType());
963 if (GV->hasInitializer()) {
964 Constant* Init = GV->getInitializer();
965 printType(Init->getType());
966 if (Function* F = dyn_cast<Function>(Init)) {
967 nl(Out)<< "/ Function Declarations"; nl(Out);
968 printFunctionHead(F);
969 } else if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
970 nl(Out) << "// Global Variable Declarations"; nl(Out);
971 printVariableHead(gv);
973 nl(Out) << "// Constant Definitions"; nl(Out);
976 if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
977 nl(Out) << "// Global Variable Definitions"; nl(Out);
978 printVariableBody(gv);
983 void CppWriter::printVariableHead(const GlobalVariable *GV) {
984 nl(Out) << "GlobalVariable* " << getCppName(GV);
986 Out << " = mod->getGlobalVariable(";
987 printEscapedString(GV->getName());
988 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)";
989 nl(Out) << "if (!" << getCppName(GV) << ") {";
990 in(); nl(Out) << getCppName(GV);
992 Out << " = new GlobalVariable(";
993 nl(Out) << "/*Type=*/";
994 printCppName(GV->getType()->getElementType());
996 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false");
998 nl(Out) << "/*Linkage=*/";
999 printLinkageType(GV->getLinkage());
1001 nl(Out) << "/*Initializer=*/0, ";
1002 if (GV->hasInitializer()) {
1003 Out << "// has initializer, specified below";
1005 nl(Out) << "/*Name=*/\"";
1006 printEscapedString(GV->getName());
1011 if (GV->hasSection()) {
1013 Out << "->setSection(\"";
1014 printEscapedString(GV->getSection());
1018 if (GV->getAlignment()) {
1020 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");";
1023 if (GV->getVisibility() != GlobalValue::DefaultVisibility) {
1025 Out << "->setVisibility(";
1026 printVisibilityType(GV->getVisibility());
1031 out(); Out << "}"; nl(Out);
1036 CppWriter::printVariableBody(const GlobalVariable *GV) {
1037 if (GV->hasInitializer()) {
1039 Out << "->setInitializer(";
1040 //if (!isa<GlobalValue(GV->getInitializer()))
1042 Out << getCppName(GV->getInitializer()) << ");";
1048 CppWriter::getOpName(Value* V) {
1049 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end())
1050 return getCppName(V);
1052 // See if its alread in the map of forward references, if so just return the
1053 // name we already set up for it
1054 ForwardRefMap::const_iterator I = ForwardRefs.find(V);
1055 if (I != ForwardRefs.end())
1058 // This is a new forward reference. Generate a unique name for it
1059 std::string result(std::string("fwdref_") + utostr(uniqueNum++));
1061 // Yes, this is a hack. An Argument is the smallest instantiable value that
1062 // we can make as a placeholder for the real value. We'll replace these
1063 // Argument instances later.
1064 Out << "Argument* " << result << " = new Argument("
1065 << getCppName(V->getType()) << ");";
1067 ForwardRefs[V] = result;
1071 // printInstruction - This member is called for each Instruction in a function.
1073 CppWriter::printInstruction(const Instruction *I, const std::string& bbname) {
1074 std::string iName(getCppName(I));
1076 // Before we emit this instruction, we need to take care of generating any
1077 // forward references. So, we get the names of all the operands in advance
1078 std::string* opNames = new std::string[I->getNumOperands()];
1079 for (unsigned i = 0; i < I->getNumOperands(); i++) {
1080 opNames[i] = getOpName(I->getOperand(i));
1083 switch (I->getOpcode()) {
1084 case Instruction::Ret: {
1085 const ReturnInst* ret = cast<ReturnInst>(I);
1086 Out << "new ReturnInst("
1087 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");";
1090 case Instruction::Br: {
1091 const BranchInst* br = cast<BranchInst>(I);
1092 Out << "new BranchInst(" ;
1093 if (br->getNumOperands() == 3 ) {
1094 Out << opNames[0] << ", "
1095 << opNames[1] << ", "
1096 << opNames[2] << ", ";
1098 } else if (br->getNumOperands() == 1) {
1099 Out << opNames[0] << ", ";
1101 error("Branch with 2 operands?");
1103 Out << bbname << ");";
1106 case Instruction::Switch: {
1107 const SwitchInst* sw = cast<SwitchInst>(I);
1108 Out << "SwitchInst* " << iName << " = new SwitchInst("
1109 << opNames[0] << ", "
1110 << opNames[1] << ", "
1111 << sw->getNumCases() << ", " << bbname << ");";
1113 for (unsigned i = 2; i < sw->getNumOperands(); i += 2 ) {
1114 Out << iName << "->addCase("
1115 << opNames[i] << ", "
1116 << opNames[i+1] << ");";
1121 case Instruction::Invoke: {
1122 const InvokeInst* inv = cast<InvokeInst>(I);
1123 Out << "std::vector<Value*> " << iName << "_params;";
1125 for (unsigned i = 3; i < inv->getNumOperands(); ++i) {
1126 Out << iName << "_params.push_back("
1127 << opNames[i] << ");";
1130 Out << "InvokeInst *" << iName << " = new InvokeInst("
1131 << opNames[0] << ", "
1132 << opNames[1] << ", "
1133 << opNames[2] << ", "
1134 << iName << "_params.begin(), " << iName << "_params.end(), \"";
1135 printEscapedString(inv->getName());
1136 Out << "\", " << bbname << ");";
1137 nl(Out) << iName << "->setCallingConv(";
1138 printCallingConv(inv->getCallingConv());
1140 printParamAttrs(inv->getParamAttrs(), iName);
1141 Out << iName << "->setParamAttrs(" << iName << "_PAL);";
1145 case Instruction::Unwind: {
1146 Out << "new UnwindInst("
1150 case Instruction::Unreachable:{
1151 Out << "new UnreachableInst("
1155 case Instruction::Add:
1156 case Instruction::Sub:
1157 case Instruction::Mul:
1158 case Instruction::UDiv:
1159 case Instruction::SDiv:
1160 case Instruction::FDiv:
1161 case Instruction::URem:
1162 case Instruction::SRem:
1163 case Instruction::FRem:
1164 case Instruction::And:
1165 case Instruction::Or:
1166 case Instruction::Xor:
1167 case Instruction::Shl:
1168 case Instruction::LShr:
1169 case Instruction::AShr:{
1170 Out << "BinaryOperator* " << iName << " = BinaryOperator::create(";
1171 switch (I->getOpcode()) {
1172 case Instruction::Add: Out << "Instruction::Add"; break;
1173 case Instruction::Sub: Out << "Instruction::Sub"; break;
1174 case Instruction::Mul: Out << "Instruction::Mul"; break;
1175 case Instruction::UDiv:Out << "Instruction::UDiv"; break;
1176 case Instruction::SDiv:Out << "Instruction::SDiv"; break;
1177 case Instruction::FDiv:Out << "Instruction::FDiv"; break;
1178 case Instruction::URem:Out << "Instruction::URem"; break;
1179 case Instruction::SRem:Out << "Instruction::SRem"; break;
1180 case Instruction::FRem:Out << "Instruction::FRem"; break;
1181 case Instruction::And: Out << "Instruction::And"; break;
1182 case Instruction::Or: Out << "Instruction::Or"; break;
1183 case Instruction::Xor: Out << "Instruction::Xor"; break;
1184 case Instruction::Shl: Out << "Instruction::Shl"; break;
1185 case Instruction::LShr:Out << "Instruction::LShr"; break;
1186 case Instruction::AShr:Out << "Instruction::AShr"; break;
1187 default: Out << "Instruction::BadOpCode"; break;
1189 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1190 printEscapedString(I->getName());
1191 Out << "\", " << bbname << ");";
1194 case Instruction::FCmp: {
1195 Out << "FCmpInst* " << iName << " = new FCmpInst(";
1196 switch (cast<FCmpInst>(I)->getPredicate()) {
1197 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break;
1198 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break;
1199 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break;
1200 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break;
1201 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break;
1202 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break;
1203 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break;
1204 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break;
1205 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break;
1206 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break;
1207 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break;
1208 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break;
1209 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break;
1210 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break;
1211 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break;
1212 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break;
1213 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break;
1215 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1216 printEscapedString(I->getName());
1217 Out << "\", " << bbname << ");";
1220 case Instruction::ICmp: {
1221 Out << "ICmpInst* " << iName << " = new ICmpInst(";
1222 switch (cast<ICmpInst>(I)->getPredicate()) {
1223 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break;
1224 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break;
1225 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break;
1226 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break;
1227 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break;
1228 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break;
1229 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break;
1230 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break;
1231 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break;
1232 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break;
1233 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break;
1235 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1236 printEscapedString(I->getName());
1237 Out << "\", " << bbname << ");";
1240 case Instruction::Malloc: {
1241 const MallocInst* mallocI = cast<MallocInst>(I);
1242 Out << "MallocInst* " << iName << " = new MallocInst("
1243 << getCppName(mallocI->getAllocatedType()) << ", ";
1244 if (mallocI->isArrayAllocation())
1245 Out << opNames[0] << ", " ;
1247 printEscapedString(mallocI->getName());
1248 Out << "\", " << bbname << ");";
1249 if (mallocI->getAlignment())
1250 nl(Out) << iName << "->setAlignment("
1251 << mallocI->getAlignment() << ");";
1254 case Instruction::Free: {
1255 Out << "FreeInst* " << iName << " = new FreeInst("
1256 << getCppName(I->getOperand(0)) << ", " << bbname << ");";
1259 case Instruction::Alloca: {
1260 const AllocaInst* allocaI = cast<AllocaInst>(I);
1261 Out << "AllocaInst* " << iName << " = new AllocaInst("
1262 << getCppName(allocaI->getAllocatedType()) << ", ";
1263 if (allocaI->isArrayAllocation())
1264 Out << opNames[0] << ", ";
1266 printEscapedString(allocaI->getName());
1267 Out << "\", " << bbname << ");";
1268 if (allocaI->getAlignment())
1269 nl(Out) << iName << "->setAlignment("
1270 << allocaI->getAlignment() << ");";
1273 case Instruction::Load:{
1274 const LoadInst* load = cast<LoadInst>(I);
1275 Out << "LoadInst* " << iName << " = new LoadInst("
1276 << opNames[0] << ", \"";
1277 printEscapedString(load->getName());
1278 Out << "\", " << (load->isVolatile() ? "true" : "false" )
1279 << ", " << bbname << ");";
1282 case Instruction::Store: {
1283 const StoreInst* store = cast<StoreInst>(I);
1284 Out << "StoreInst* " << iName << " = new StoreInst("
1285 << opNames[0] << ", "
1286 << opNames[1] << ", "
1287 << (store->isVolatile() ? "true" : "false")
1288 << ", " << bbname << ");";
1291 case Instruction::GetElementPtr: {
1292 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I);
1293 if (gep->getNumOperands() <= 2) {
1294 Out << "GetElementPtrInst* " << iName << " = new GetElementPtrInst("
1296 if (gep->getNumOperands() == 2)
1297 Out << ", " << opNames[1];
1299 Out << "std::vector<Value*> " << iName << "_indices;";
1301 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) {
1302 Out << iName << "_indices.push_back("
1303 << opNames[i] << ");";
1306 Out << "Instruction* " << iName << " = new GetElementPtrInst("
1307 << opNames[0] << ", " << iName << "_indices.begin(), "
1308 << iName << "_indices.end()";
1311 printEscapedString(gep->getName());
1312 Out << "\", " << bbname << ");";
1315 case Instruction::PHI: {
1316 const PHINode* phi = cast<PHINode>(I);
1318 Out << "PHINode* " << iName << " = new PHINode("
1319 << getCppName(phi->getType()) << ", \"";
1320 printEscapedString(phi->getName());
1321 Out << "\", " << bbname << ");";
1322 nl(Out) << iName << "->reserveOperandSpace("
1323 << phi->getNumIncomingValues()
1326 for (unsigned i = 0; i < phi->getNumOperands(); i+=2) {
1327 Out << iName << "->addIncoming("
1328 << opNames[i] << ", " << opNames[i+1] << ");";
1333 case Instruction::Trunc:
1334 case Instruction::ZExt:
1335 case Instruction::SExt:
1336 case Instruction::FPTrunc:
1337 case Instruction::FPExt:
1338 case Instruction::FPToUI:
1339 case Instruction::FPToSI:
1340 case Instruction::UIToFP:
1341 case Instruction::SIToFP:
1342 case Instruction::PtrToInt:
1343 case Instruction::IntToPtr:
1344 case Instruction::BitCast: {
1345 const CastInst* cst = cast<CastInst>(I);
1346 Out << "CastInst* " << iName << " = new ";
1347 switch (I->getOpcode()) {
1348 case Instruction::Trunc: Out << "TruncInst"; break;
1349 case Instruction::ZExt: Out << "ZExtInst"; break;
1350 case Instruction::SExt: Out << "SExtInst"; break;
1351 case Instruction::FPTrunc: Out << "FPTruncInst"; break;
1352 case Instruction::FPExt: Out << "FPExtInst"; break;
1353 case Instruction::FPToUI: Out << "FPToUIInst"; break;
1354 case Instruction::FPToSI: Out << "FPToSIInst"; break;
1355 case Instruction::UIToFP: Out << "UIToFPInst"; break;
1356 case Instruction::SIToFP: Out << "SIToFPInst"; break;
1357 case Instruction::PtrToInt: Out << "PtrToIntInst"; break;
1358 case Instruction::IntToPtr: Out << "IntToPtrInst"; break;
1359 case Instruction::BitCast: Out << "BitCastInst"; break;
1360 default: assert(!"Unreachable"); break;
1362 Out << "(" << opNames[0] << ", "
1363 << getCppName(cst->getType()) << ", \"";
1364 printEscapedString(cst->getName());
1365 Out << "\", " << bbname << ");";
1368 case Instruction::Call:{
1369 const CallInst* call = cast<CallInst>(I);
1370 if (InlineAsm* ila = dyn_cast<InlineAsm>(call->getOperand(0))) {
1371 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get("
1372 << getCppName(ila->getFunctionType()) << ", \""
1373 << ila->getAsmString() << "\", \""
1374 << ila->getConstraintString() << "\","
1375 << (ila->hasSideEffects() ? "true" : "false") << ");";
1378 if (call->getNumOperands() > 2) {
1379 Out << "std::vector<Value*> " << iName << "_params;";
1381 for (unsigned i = 1; i < call->getNumOperands(); ++i) {
1382 Out << iName << "_params.push_back(" << opNames[i] << ");";
1385 Out << "CallInst* " << iName << " = new CallInst("
1386 << opNames[0] << ", " << iName << "_params.begin(), "
1387 << iName << "_params.end(), \"";
1388 } else if (call->getNumOperands() == 2) {
1389 Out << "CallInst* " << iName << " = new CallInst("
1390 << opNames[0] << ", " << opNames[1] << ", \"";
1392 Out << "CallInst* " << iName << " = new CallInst(" << opNames[0]
1395 printEscapedString(call->getName());
1396 Out << "\", " << bbname << ");";
1397 nl(Out) << iName << "->setCallingConv(";
1398 printCallingConv(call->getCallingConv());
1400 nl(Out) << iName << "->setTailCall("
1401 << (call->isTailCall() ? "true":"false");
1403 printParamAttrs(call->getParamAttrs(), iName);
1404 Out << iName << "->setParamAttrs(" << iName << "_PAL);";
1408 case Instruction::Select: {
1409 const SelectInst* sel = cast<SelectInst>(I);
1410 Out << "SelectInst* " << getCppName(sel) << " = new SelectInst(";
1411 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1412 printEscapedString(sel->getName());
1413 Out << "\", " << bbname << ");";
1416 case Instruction::UserOp1:
1418 case Instruction::UserOp2: {
1419 /// FIXME: What should be done here?
1422 case Instruction::VAArg: {
1423 const VAArgInst* va = cast<VAArgInst>(I);
1424 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst("
1425 << opNames[0] << ", " << getCppName(va->getType()) << ", \"";
1426 printEscapedString(va->getName());
1427 Out << "\", " << bbname << ");";
1430 case Instruction::ExtractElement: {
1431 const ExtractElementInst* eei = cast<ExtractElementInst>(I);
1432 Out << "ExtractElementInst* " << getCppName(eei)
1433 << " = new ExtractElementInst(" << opNames[0]
1434 << ", " << opNames[1] << ", \"";
1435 printEscapedString(eei->getName());
1436 Out << "\", " << bbname << ");";
1439 case Instruction::InsertElement: {
1440 const InsertElementInst* iei = cast<InsertElementInst>(I);
1441 Out << "InsertElementInst* " << getCppName(iei)
1442 << " = new InsertElementInst(" << opNames[0]
1443 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1444 printEscapedString(iei->getName());
1445 Out << "\", " << bbname << ");";
1448 case Instruction::ShuffleVector: {
1449 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I);
1450 Out << "ShuffleVectorInst* " << getCppName(svi)
1451 << " = new ShuffleVectorInst(" << opNames[0]
1452 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1453 printEscapedString(svi->getName());
1454 Out << "\", " << bbname << ");";
1458 DefinedValues.insert(I);
1463 // Print out the types, constants and declarations needed by one function
1464 void CppWriter::printFunctionUses(const Function* F) {
1466 nl(Out) << "// Type Definitions"; nl(Out);
1468 // Print the function's return type
1469 printType(F->getReturnType());
1471 // Print the function's function type
1472 printType(F->getFunctionType());
1474 // Print the types of each of the function's arguments
1475 for(Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1477 printType(AI->getType());
1481 // Print type definitions for every type referenced by an instruction and
1482 // make a note of any global values or constants that are referenced
1483 SmallPtrSet<GlobalValue*,64> gvs;
1484 SmallPtrSet<Constant*,64> consts;
1485 for (Function::const_iterator BB = F->begin(), BE = F->end(); BB != BE; ++BB){
1486 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
1488 // Print the type of the instruction itself
1489 printType(I->getType());
1491 // Print the type of each of the instruction's operands
1492 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
1493 Value* operand = I->getOperand(i);
1494 printType(operand->getType());
1496 // If the operand references a GVal or Constant, make a note of it
1497 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
1499 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
1500 if (GVar->hasInitializer())
1501 consts.insert(GVar->getInitializer());
1502 } else if (Constant* C = dyn_cast<Constant>(operand))
1508 // Print the function declarations for any functions encountered
1509 nl(Out) << "// Function Declarations"; nl(Out);
1510 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1512 if (Function* Fun = dyn_cast<Function>(*I)) {
1513 if (!is_inline || Fun != F)
1514 printFunctionHead(Fun);
1518 // Print the global variable declarations for any variables encountered
1519 nl(Out) << "// Global Variable Declarations"; nl(Out);
1520 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1522 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I))
1523 printVariableHead(F);
1526 // Print the constants found
1527 nl(Out) << "// Constant Definitions"; nl(Out);
1528 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), E = consts.end();
1533 // Process the global variables definitions now that all the constants have
1534 // been emitted. These definitions just couple the gvars with their constant
1536 nl(Out) << "// Global Variable Definitions"; nl(Out);
1537 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1539 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I))
1540 printVariableBody(GV);
1544 void CppWriter::printFunctionHead(const Function* F) {
1545 nl(Out) << "Function* " << getCppName(F);
1547 Out << " = mod->getFunction(\"";
1548 printEscapedString(F->getName());
1549 Out << "\", " << getCppName(F->getFunctionType()) << ");";
1550 nl(Out) << "if (!" << getCppName(F) << ") {";
1551 nl(Out) << getCppName(F);
1553 Out<< " = new Function(";
1554 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ",";
1555 nl(Out) << "/*Linkage=*/";
1556 printLinkageType(F->getLinkage());
1558 nl(Out) << "/*Name=*/\"";
1559 printEscapedString(F->getName());
1560 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : "");
1563 Out << "->setCallingConv(";
1564 printCallingConv(F->getCallingConv());
1567 if (F->hasSection()) {
1569 Out << "->setSection(\"" << F->getSection() << "\");";
1572 if (F->getAlignment()) {
1574 Out << "->setAlignment(" << F->getAlignment() << ");";
1577 if (F->getVisibility() != GlobalValue::DefaultVisibility) {
1579 Out << "->setVisibility(";
1580 printVisibilityType(F->getVisibility());
1584 if (F->hasCollector()) {
1586 Out << "->setCollector(\"" << F->getCollector() << "\");";
1593 printParamAttrs(F->getParamAttrs(), getCppName(F));
1595 Out << "->setParamAttrs(" << getCppName(F) << "_PAL);";
1599 void CppWriter::printFunctionBody(const Function *F) {
1600 if (F->isDeclaration())
1601 return; // external functions have no bodies.
1603 // Clear the DefinedValues and ForwardRefs maps because we can't have
1604 // cross-function forward refs
1605 ForwardRefs.clear();
1606 DefinedValues.clear();
1608 // Create all the argument values
1610 if (!F->arg_empty()) {
1611 Out << "Function::arg_iterator args = " << getCppName(F)
1612 << "->arg_begin();";
1615 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1617 Out << "Value* " << getCppName(AI) << " = args++;";
1619 if (AI->hasName()) {
1620 Out << getCppName(AI) << "->setName(\"" << AI->getName() << "\");";
1626 // Create all the basic blocks
1628 for (Function::const_iterator BI = F->begin(), BE = F->end();
1630 std::string bbname(getCppName(BI));
1631 Out << "BasicBlock* " << bbname << " = new BasicBlock(\"";
1633 printEscapedString(BI->getName());
1634 Out << "\"," << getCppName(BI->getParent()) << ",0);";
1638 // Output all of its basic blocks... for the function
1639 for (Function::const_iterator BI = F->begin(), BE = F->end();
1641 std::string bbname(getCppName(BI));
1642 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")";
1645 // Output all of the instructions in the basic block...
1646 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end();
1648 printInstruction(I,bbname);
1652 // Loop over the ForwardRefs and resolve them now that all instructions
1654 if (!ForwardRefs.empty()) {
1655 nl(Out) << "// Resolve Forward References";
1659 while (!ForwardRefs.empty()) {
1660 ForwardRefMap::iterator I = ForwardRefs.begin();
1661 Out << I->second << "->replaceAllUsesWith("
1662 << getCppName(I->first) << "); delete " << I->second << ";";
1664 ForwardRefs.erase(I);
1668 void CppWriter::printInline(const std::string& fname, const std::string& func) {
1669 const Function* F = TheModule->getFunction(func);
1671 error(std::string("Function '") + func + "' not found in input module");
1674 if (F->isDeclaration()) {
1675 error(std::string("Function '") + func + "' is external!");
1678 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *"
1680 unsigned arg_count = 1;
1681 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1683 Out << ", Value* arg_" << arg_count;
1688 printFunctionUses(F);
1689 printFunctionBody(F);
1691 Out << "return " << getCppName(F->begin()) << ";";
1696 void CppWriter::printModuleBody() {
1697 // Print out all the type definitions
1698 nl(Out) << "// Type Definitions"; nl(Out);
1699 printTypes(TheModule);
1701 // Functions can call each other and global variables can reference them so
1702 // define all the functions first before emitting their function bodies.
1703 nl(Out) << "// Function Declarations"; nl(Out);
1704 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1706 printFunctionHead(I);
1708 // Process the global variables declarations. We can't initialze them until
1709 // after the constants are printed so just print a header for each global
1710 nl(Out) << "// Global Variable Declarations\n"; nl(Out);
1711 for (Module::const_global_iterator I = TheModule->global_begin(),
1712 E = TheModule->global_end(); I != E; ++I) {
1713 printVariableHead(I);
1716 // Print out all the constants definitions. Constants don't recurse except
1717 // through GlobalValues. All GlobalValues have been declared at this point
1718 // so we can proceed to generate the constants.
1719 nl(Out) << "// Constant Definitions"; nl(Out);
1720 printConstants(TheModule);
1722 // Process the global variables definitions now that all the constants have
1723 // been emitted. These definitions just couple the gvars with their constant
1725 nl(Out) << "// Global Variable Definitions"; nl(Out);
1726 for (Module::const_global_iterator I = TheModule->global_begin(),
1727 E = TheModule->global_end(); I != E; ++I) {
1728 printVariableBody(I);
1731 // Finally, we can safely put out all of the function bodies.
1732 nl(Out) << "// Function Definitions"; nl(Out);
1733 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1735 if (!I->isDeclaration()) {
1736 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I)
1740 printFunctionBody(I);
1747 void CppWriter::printProgram(
1748 const std::string& fname,
1749 const std::string& mName
1751 Out << "#include <llvm/Module.h>\n";
1752 Out << "#include <llvm/DerivedTypes.h>\n";
1753 Out << "#include <llvm/Constants.h>\n";
1754 Out << "#include <llvm/GlobalVariable.h>\n";
1755 Out << "#include <llvm/Function.h>\n";
1756 Out << "#include <llvm/CallingConv.h>\n";
1757 Out << "#include <llvm/BasicBlock.h>\n";
1758 Out << "#include <llvm/Instructions.h>\n";
1759 Out << "#include <llvm/InlineAsm.h>\n";
1760 Out << "#include <llvm/Support/MathExtras.h>\n";
1761 Out << "#include <llvm/Pass.h>\n";
1762 Out << "#include <llvm/PassManager.h>\n";
1763 Out << "#include <llvm/Analysis/Verifier.h>\n";
1764 Out << "#include <llvm/Assembly/PrintModulePass.h>\n";
1765 Out << "#include <algorithm>\n";
1766 Out << "#include <iostream>\n\n";
1767 Out << "using namespace llvm;\n\n";
1768 Out << "Module* " << fname << "();\n\n";
1769 Out << "int main(int argc, char**argv) {\n";
1770 Out << " Module* Mod = " << fname << "();\n";
1771 Out << " verifyModule(*Mod, PrintMessageAction);\n";
1772 Out << " std::cerr.flush();\n";
1773 Out << " std::cout.flush();\n";
1774 Out << " PassManager PM;\n";
1775 Out << " PM.add(new PrintModulePass(&llvm::cout));\n";
1776 Out << " PM.run(*Mod);\n";
1777 Out << " return 0;\n";
1779 printModule(fname,mName);
1782 void CppWriter::printModule(
1783 const std::string& fname,
1784 const std::string& mName
1786 nl(Out) << "Module* " << fname << "() {";
1787 nl(Out,1) << "// Module Construction";
1788 nl(Out) << "Module* mod = new Module(\"" << mName << "\");";
1789 if (!TheModule->getTargetTriple().empty()) {
1790 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");";
1792 if (!TheModule->getTargetTriple().empty()) {
1793 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple()
1797 if (!TheModule->getModuleInlineAsm().empty()) {
1798 nl(Out) << "mod->setModuleInlineAsm(\"";
1799 printEscapedString(TheModule->getModuleInlineAsm());
1804 // Loop over the dependent libraries and emit them.
1805 Module::lib_iterator LI = TheModule->lib_begin();
1806 Module::lib_iterator LE = TheModule->lib_end();
1808 Out << "mod->addLibrary(\"" << *LI << "\");";
1813 nl(Out) << "return mod;";
1818 void CppWriter::printContents(
1819 const std::string& fname, // Name of generated function
1820 const std::string& mName // Name of module generated module
1822 Out << "\nModule* " << fname << "(Module *mod) {\n";
1823 Out << "\nmod->setModuleIdentifier(\"" << mName << "\");\n";
1825 Out << "\nreturn mod;\n";
1829 void CppWriter::printFunction(
1830 const std::string& fname, // Name of generated function
1831 const std::string& funcName // Name of function to generate
1833 const Function* F = TheModule->getFunction(funcName);
1835 error(std::string("Function '") + funcName + "' not found in input module");
1838 Out << "\nFunction* " << fname << "(Module *mod) {\n";
1839 printFunctionUses(F);
1840 printFunctionHead(F);
1841 printFunctionBody(F);
1842 Out << "return " << getCppName(F) << ";\n";
1846 void CppWriter::printFunctions() {
1847 const Module::FunctionListType &funcs = TheModule->getFunctionList();
1848 Module::const_iterator I = funcs.begin();
1849 Module::const_iterator IE = funcs.end();
1851 for (; I != IE; ++I) {
1852 const Function &func = *I;
1853 if (!func.isDeclaration()) {
1854 std::string name("define_");
1855 name += func.getName();
1856 printFunction(name, func.getName());
1861 void CppWriter::printVariable(
1862 const std::string& fname, /// Name of generated function
1863 const std::string& varName // Name of variable to generate
1865 const GlobalVariable* GV = TheModule->getNamedGlobal(varName);
1868 error(std::string("Variable '") + varName + "' not found in input module");
1871 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n";
1872 printVariableUses(GV);
1873 printVariableHead(GV);
1874 printVariableBody(GV);
1875 Out << "return " << getCppName(GV) << ";\n";
1879 void CppWriter::printType(
1880 const std::string& fname, /// Name of generated function
1881 const std::string& typeName // Name of type to generate
1883 const Type* Ty = TheModule->getTypeByName(typeName);
1885 error(std::string("Type '") + typeName + "' not found in input module");
1888 Out << "\nType* " << fname << "(Module *mod) {\n";
1890 Out << "return " << getCppName(Ty) << ";\n";
1894 } // end anonymous llvm
1898 void WriteModuleToCppFile(Module* mod, std::ostream& o) {
1899 // Initialize a CppWriter for us to use
1900 CppWriter W(o, mod);
1903 o << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n";
1905 // Get the name of the function we're supposed to generate
1906 std::string fname = FuncName.getValue();
1908 // Get the name of the thing we are to generate
1909 std::string tgtname = NameToGenerate.getValue();
1910 if (GenerationType == GenModule ||
1911 GenerationType == GenContents ||
1912 GenerationType == GenProgram ||
1913 GenerationType == GenFunctions) {
1914 if (tgtname == "!bad!") {
1915 if (mod->getModuleIdentifier() == "-")
1916 tgtname = "<stdin>";
1918 tgtname = mod->getModuleIdentifier();
1920 } else if (tgtname == "!bad!") {
1921 W.error("You must use the -for option with -gen-{function,variable,type}");
1924 switch (WhatToGenerate(GenerationType)) {
1927 fname = "makeLLVMModule";
1928 W.printProgram(fname,tgtname);
1932 fname = "makeLLVMModule";
1933 W.printModule(fname,tgtname);
1937 fname = "makeLLVMModuleContents";
1938 W.printContents(fname,tgtname);
1942 fname = "makeLLVMFunction";
1943 W.printFunction(fname,tgtname);
1950 fname = "makeLLVMInline";
1951 W.printInline(fname,tgtname);
1955 fname = "makeLLVMVariable";
1956 W.printVariable(fname,tgtname);
1960 fname = "makeLLVMType";
1961 W.printType(fname,tgtname);
1964 W.error("Invalid generation option");