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/ParameterAttributes.h"
22 #include "llvm/Module.h"
23 #include "llvm/TypeSymbolTable.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/ADT/SmallPtrSet.h"
27 #include "llvm/Support/CommandLine.h"
28 #include "llvm/Support/CFG.h"
29 #include "llvm/Support/ManagedStatic.h"
30 #include "llvm/Support/MathExtras.h"
31 #include "llvm/Config/config.h"
38 static cl::opt<std::string>
39 FuncName("funcname", cl::desc("Specify the name of the generated function"),
40 cl::value_desc("function name"));
53 static cl::opt<WhatToGenerate> GenerationType(cl::Optional,
54 cl::desc("Choose what kind of output to generate"),
57 clEnumValN(GenProgram, "gen-program", "Generate a complete program"),
58 clEnumValN(GenModule, "gen-module", "Generate a module definition"),
59 clEnumValN(GenContents, "gen-contents", "Generate contents of a module"),
60 clEnumValN(GenFunction, "gen-function", "Generate a function definition"),
61 clEnumValN(GenFunctions,"gen-functions", "Generate all function definitions"),
62 clEnumValN(GenInline, "gen-inline", "Generate an inline function"),
63 clEnumValN(GenVariable, "gen-variable", "Generate a variable definition"),
64 clEnumValN(GenType, "gen-type", "Generate a type definition"),
69 static cl::opt<std::string> NameToGenerate("for", cl::Optional,
70 cl::desc("Specify the name of the thing to generate"),
74 typedef std::vector<const Type*> TypeList;
75 typedef std::map<const Type*,std::string> TypeMap;
76 typedef std::map<const Value*,std::string> ValueMap;
77 typedef std::set<std::string> NameSet;
78 typedef std::set<const Type*> TypeSet;
79 typedef std::set<const Value*> ValueSet;
80 typedef std::map<const Value*,std::string> ForwardRefMap;
85 const Module *TheModule;
89 TypeMap UnresolvedTypes;
93 ValueSet DefinedValues;
94 ForwardRefMap ForwardRefs;
98 inline CppWriter(std::ostream &o, const Module *M, const char* pn="llvm2cpp")
99 : progname(pn), Out(o), TheModule(M), uniqueNum(0), TypeNames(),
100 ValueNames(), UnresolvedTypes(), TypeStack(), is_inline(false) { }
102 const Module* getModule() { return TheModule; }
104 void printProgram(const std::string& fname, const std::string& modName );
105 void printModule(const std::string& fname, const std::string& modName );
106 void printContents(const std::string& fname, const std::string& modName );
107 void printFunction(const std::string& fname, const std::string& funcName );
108 void printFunctions();
109 void printInline(const std::string& fname, const std::string& funcName );
110 void printVariable(const std::string& fname, const std::string& varName );
111 void printType(const std::string& fname, const std::string& typeName );
113 void error(const std::string& msg);
116 void printLinkageType(GlobalValue::LinkageTypes LT);
117 void printVisibilityType(GlobalValue::VisibilityTypes VisTypes);
118 void printCallingConv(unsigned cc);
119 void printEscapedString(const std::string& str);
120 void printCFP(const ConstantFP* CFP);
122 std::string getCppName(const Type* val);
123 inline void printCppName(const Type* val);
125 std::string getCppName(const Value* val);
126 inline void printCppName(const Value* val);
128 void printParamAttrs(const ParamAttrsList* PAL, const std::string &name);
129 bool printTypeInternal(const Type* Ty);
130 inline void printType(const Type* Ty);
131 void printTypes(const Module* M);
133 void printConstant(const Constant *CPV);
134 void printConstants(const Module* M);
136 void printVariableUses(const GlobalVariable *GV);
137 void printVariableHead(const GlobalVariable *GV);
138 void printVariableBody(const GlobalVariable *GV);
140 void printFunctionUses(const Function *F);
141 void printFunctionHead(const Function *F);
142 void printFunctionBody(const Function *F);
143 void printInstruction(const Instruction *I, const std::string& bbname);
144 std::string getOpName(Value*);
146 void printModuleBody();
150 static unsigned indent_level = 0;
151 inline std::ostream& nl(std::ostream& Out, int delta = 0) {
153 if (delta >= 0 || indent_level >= unsigned(-delta))
154 indent_level += delta;
155 for (unsigned i = 0; i < indent_level; ++i)
160 inline void in() { indent_level++; }
161 inline void out() { if (indent_level >0) indent_level--; }
164 sanitize(std::string& str) {
165 for (size_t i = 0; i < str.length(); ++i)
166 if (!isalnum(str[i]) && str[i] != '_')
171 getTypePrefix(const Type* Ty ) {
172 switch (Ty->getTypeID()) {
173 case Type::VoidTyID: return "void_";
174 case Type::IntegerTyID:
175 return std::string("int") + utostr(cast<IntegerType>(Ty)->getBitWidth()) +
177 case Type::FloatTyID: return "float_";
178 case Type::DoubleTyID: return "double_";
179 case Type::LabelTyID: return "label_";
180 case Type::FunctionTyID: return "func_";
181 case Type::StructTyID: return "struct_";
182 case Type::ArrayTyID: return "array_";
183 case Type::PointerTyID: return "ptr_";
184 case Type::VectorTyID: return "packed_";
185 case Type::OpaqueTyID: return "opaque_";
186 default: return "other_";
191 // Looks up the type in the symbol table and returns a pointer to its name or
192 // a null pointer if it wasn't found. Note that this isn't the same as the
193 // Mode::getTypeName function which will return an empty string, not a null
194 // pointer if the name is not found.
195 inline const std::string*
196 findTypeName(const TypeSymbolTable& ST, const Type* Ty)
198 TypeSymbolTable::const_iterator TI = ST.begin();
199 TypeSymbolTable::const_iterator TE = ST.end();
200 for (;TI != TE; ++TI)
201 if (TI->second == Ty)
207 CppWriter::error(const std::string& msg) {
208 std::cerr << progname << ": " << msg << "\n";
212 // printCFP - Print a floating point constant .. very carefully :)
213 // This makes sure that conversion to/from floating yields the same binary
214 // result so that we don't lose precision.
216 CppWriter::printCFP(const ConstantFP *CFP) {
217 APFloat APF = APFloat(CFP->getValueAPF()); // copy
218 if (CFP->getType() == Type::FloatTy)
219 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven);
220 Out << "ConstantFP::get(";
221 if (CFP->getType() == Type::DoubleTy)
222 Out << "Type::DoubleTy, ";
224 Out << "Type::FloatTy, ";
228 sprintf(Buffer, "%A", APF.convertToDouble());
229 if ((!strncmp(Buffer, "0x", 2) ||
230 !strncmp(Buffer, "-0x", 3) ||
231 !strncmp(Buffer, "+0x", 3)) &&
232 APF.bitwiseIsEqual(APFloat(atof(Buffer)))) {
233 if (CFP->getType() == Type::DoubleTy)
234 Out << "BitsToDouble(" << Buffer << ")";
236 Out << "BitsToFloat((float)" << Buffer << ")";
240 std::string StrVal = ftostr(CFP->getValueAPF());
242 while (StrVal[0] == ' ')
243 StrVal.erase(StrVal.begin());
245 // Check to make sure that the stringized number is not some string like
246 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex.
247 if (((StrVal[0] >= '0' && StrVal[0] <= '9') ||
248 ((StrVal[0] == '-' || StrVal[0] == '+') &&
249 (StrVal[1] >= '0' && StrVal[1] <= '9'))) &&
250 (CFP->isExactlyValue(atof(StrVal.c_str())))) {
251 if (CFP->getType() == Type::DoubleTy)
254 Out << StrVal << "f";
256 else if (CFP->getType() == Type::DoubleTy)
257 Out << "BitsToDouble(0x" << std::hex
258 << CFP->getValueAPF().convertToAPInt().getZExtValue()
259 << std::dec << "ULL) /* " << StrVal << " */";
261 Out << "BitsToFloat(0x" << std::hex
262 << (uint32_t)CFP->getValueAPF().convertToAPInt().getZExtValue()
263 << std::dec << "U) /* " << StrVal << " */";
272 CppWriter::printCallingConv(unsigned cc){
273 // Print the calling convention.
275 case CallingConv::C: Out << "CallingConv::C"; break;
276 case CallingConv::Fast: Out << "CallingConv::Fast"; break;
277 case CallingConv::Cold: Out << "CallingConv::Cold"; break;
278 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break;
279 default: Out << cc; break;
284 CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
286 case GlobalValue::InternalLinkage:
287 Out << "GlobalValue::InternalLinkage"; break;
288 case GlobalValue::LinkOnceLinkage:
289 Out << "GlobalValue::LinkOnceLinkage "; break;
290 case GlobalValue::WeakLinkage:
291 Out << "GlobalValue::WeakLinkage"; break;
292 case GlobalValue::AppendingLinkage:
293 Out << "GlobalValue::AppendingLinkage"; break;
294 case GlobalValue::ExternalLinkage:
295 Out << "GlobalValue::ExternalLinkage"; break;
296 case GlobalValue::DLLImportLinkage:
297 Out << "GlobalValue::DLLImportLinkage"; break;
298 case GlobalValue::DLLExportLinkage:
299 Out << "GlobalValue::DLLExportLinkage"; break;
300 case GlobalValue::ExternalWeakLinkage:
301 Out << "GlobalValue::ExternalWeakLinkage"; break;
302 case GlobalValue::GhostLinkage:
303 Out << "GlobalValue::GhostLinkage"; break;
308 CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) {
310 default: assert(0 && "Unknown GVar visibility");
311 case GlobalValue::DefaultVisibility:
312 Out << "GlobalValue::DefaultVisibility";
314 case GlobalValue::HiddenVisibility:
315 Out << "GlobalValue::HiddenVisibility";
317 case GlobalValue::ProtectedVisibility:
318 Out << "GlobalValue::ProtectedVisibility";
323 // printEscapedString - Print each character of the specified string, escaping
324 // it if it is not printable or if it is an escape char.
326 CppWriter::printEscapedString(const std::string &Str) {
327 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
328 unsigned char C = Str[i];
329 if (isprint(C) && C != '"' && C != '\\') {
333 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
334 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
340 CppWriter::getCppName(const Type* Ty)
342 // First, handle the primitive types .. easy
343 if (Ty->isPrimitiveType() || Ty->isInteger()) {
344 switch (Ty->getTypeID()) {
345 case Type::VoidTyID: return "Type::VoidTy";
346 case Type::IntegerTyID: {
347 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
348 return "IntegerType::get(" + utostr(BitWidth) + ")";
350 case Type::FloatTyID: return "Type::FloatTy";
351 case Type::DoubleTyID: return "Type::DoubleTy";
352 case Type::LabelTyID: return "Type::LabelTy";
354 error("Invalid primitive type");
357 return "Type::VoidTy"; // shouldn't be returned, but make it sensible
360 // Now, see if we've seen the type before and return that
361 TypeMap::iterator I = TypeNames.find(Ty);
362 if (I != TypeNames.end())
365 // Okay, let's build a new name for this type. Start with a prefix
366 const char* prefix = 0;
367 switch (Ty->getTypeID()) {
368 case Type::FunctionTyID: prefix = "FuncTy_"; break;
369 case Type::StructTyID: prefix = "StructTy_"; break;
370 case Type::ArrayTyID: prefix = "ArrayTy_"; break;
371 case Type::PointerTyID: prefix = "PointerTy_"; break;
372 case Type::OpaqueTyID: prefix = "OpaqueTy_"; break;
373 case Type::VectorTyID: prefix = "VectorTy_"; break;
374 default: prefix = "OtherTy_"; break; // prevent breakage
377 // See if the type has a name in the symboltable and build accordingly
378 const std::string* tName = findTypeName(TheModule->getTypeSymbolTable(), Ty);
381 name = std::string(prefix) + *tName;
383 name = std::string(prefix) + utostr(uniqueNum++);
387 return TypeNames[Ty] = name;
391 CppWriter::printCppName(const Type* Ty)
393 printEscapedString(getCppName(Ty));
397 CppWriter::getCppName(const Value* val) {
399 ValueMap::iterator I = ValueNames.find(val);
400 if (I != ValueNames.end() && I->first == val)
403 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) {
404 name = std::string("gvar_") +
405 getTypePrefix(GV->getType()->getElementType());
406 } else if (isa<Function>(val)) {
407 name = std::string("func_");
408 } else if (const Constant* C = dyn_cast<Constant>(val)) {
409 name = std::string("const_") + getTypePrefix(C->getType());
410 } else if (const Argument* Arg = dyn_cast<Argument>(val)) {
412 unsigned argNum = std::distance(Arg->getParent()->arg_begin(),
413 Function::const_arg_iterator(Arg)) + 1;
414 name = std::string("arg_") + utostr(argNum);
415 NameSet::iterator NI = UsedNames.find(name);
416 if (NI != UsedNames.end())
417 name += std::string("_") + utostr(uniqueNum++);
418 UsedNames.insert(name);
419 return ValueNames[val] = name;
421 name = getTypePrefix(val->getType());
424 name = getTypePrefix(val->getType());
426 name += (val->hasName() ? val->getName() : utostr(uniqueNum++));
428 NameSet::iterator NI = UsedNames.find(name);
429 if (NI != UsedNames.end())
430 name += std::string("_") + utostr(uniqueNum++);
431 UsedNames.insert(name);
432 return ValueNames[val] = name;
436 CppWriter::printCppName(const Value* val) {
437 printEscapedString(getCppName(val));
441 CppWriter::printParamAttrs(const ParamAttrsList* PAL, const std::string &name) {
442 Out << "ParamAttrsList *" << name << "_PAL = 0;";
445 Out << '{'; in(); nl(Out);
446 Out << "ParamAttrsVector Attrs;"; nl(Out);
447 Out << "ParamAttrsWithIndex PAWI;"; nl(Out);
448 for (unsigned i = 0; i < PAL->size(); ++i) {
449 uint16_t index = PAL->getParamIndex(i);
450 uint16_t attrs = PAL->getParamAttrs(index);
451 Out << "PAWI.index = " << index << "; PAWI.attrs = 0 ";
452 if (attrs & ParamAttr::SExt)
453 Out << " | ParamAttr::SExt";
454 if (attrs & ParamAttr::ZExt)
455 Out << " | ParamAttr::ZExt";
456 if (attrs & ParamAttr::StructRet)
457 Out << " | ParamAttr::StructRet";
458 if (attrs & ParamAttr::InReg)
459 Out << " | ParamAttr::InReg";
460 if (attrs & ParamAttr::NoReturn)
461 Out << " | ParamAttr::NoReturn";
462 if (attrs & ParamAttr::NoUnwind)
463 Out << " | ParamAttr::NoUnwind";
466 Out << "Attrs.push_back(PAWI);";
469 Out << name << "_PAL = ParamAttrsList::get(Attrs);";
477 CppWriter::printTypeInternal(const Type* Ty) {
478 // We don't print definitions for primitive types
479 if (Ty->isPrimitiveType() || Ty->isInteger())
482 // If we already defined this type, we don't need to define it again.
483 if (DefinedTypes.find(Ty) != DefinedTypes.end())
486 // Everything below needs the name for the type so get it now.
487 std::string typeName(getCppName(Ty));
489 // Search the type stack for recursion. If we find it, then generate this
490 // as an OpaqueType, but make sure not to do this multiple times because
491 // the type could appear in multiple places on the stack. Once the opaque
492 // definition is issued, it must not be re-issued. Consequently we have to
493 // check the UnresolvedTypes list as well.
494 TypeList::const_iterator TI = std::find(TypeStack.begin(),TypeStack.end(),Ty);
495 if (TI != TypeStack.end()) {
496 TypeMap::const_iterator I = UnresolvedTypes.find(Ty);
497 if (I == UnresolvedTypes.end()) {
498 Out << "PATypeHolder " << typeName << "_fwd = OpaqueType::get();";
500 UnresolvedTypes[Ty] = typeName;
505 // We're going to print a derived type which, by definition, contains other
506 // types. So, push this one we're printing onto the type stack to assist with
507 // recursive definitions.
508 TypeStack.push_back(Ty);
510 // Print the type definition
511 switch (Ty->getTypeID()) {
512 case Type::FunctionTyID: {
513 const FunctionType* FT = cast<FunctionType>(Ty);
514 Out << "std::vector<const Type*>" << typeName << "_args;";
516 FunctionType::param_iterator PI = FT->param_begin();
517 FunctionType::param_iterator PE = FT->param_end();
518 for (; PI != PE; ++PI) {
519 const Type* argTy = static_cast<const Type*>(*PI);
520 bool isForward = printTypeInternal(argTy);
521 std::string argName(getCppName(argTy));
522 Out << typeName << "_args.push_back(" << argName;
528 bool isForward = printTypeInternal(FT->getReturnType());
529 std::string retTypeName(getCppName(FT->getReturnType()));
530 Out << "FunctionType* " << typeName << " = FunctionType::get(";
531 in(); nl(Out) << "/*Result=*/" << retTypeName;
535 nl(Out) << "/*Params=*/" << typeName << "_args,";
536 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");";
541 case Type::StructTyID: {
542 const StructType* ST = cast<StructType>(Ty);
543 Out << "std::vector<const Type*>" << typeName << "_fields;";
545 StructType::element_iterator EI = ST->element_begin();
546 StructType::element_iterator EE = ST->element_end();
547 for (; EI != EE; ++EI) {
548 const Type* fieldTy = static_cast<const Type*>(*EI);
549 bool isForward = printTypeInternal(fieldTy);
550 std::string fieldName(getCppName(fieldTy));
551 Out << typeName << "_fields.push_back(" << fieldName;
557 Out << "StructType* " << typeName << " = StructType::get("
558 << typeName << "_fields, /*isPacked=*/"
559 << (ST->isPacked() ? "true" : "false") << ");";
563 case Type::ArrayTyID: {
564 const ArrayType* AT = cast<ArrayType>(Ty);
565 const Type* ET = AT->getElementType();
566 bool isForward = printTypeInternal(ET);
567 std::string elemName(getCppName(ET));
568 Out << "ArrayType* " << typeName << " = ArrayType::get("
569 << elemName << (isForward ? "_fwd" : "")
570 << ", " << utostr(AT->getNumElements()) << ");";
574 case Type::PointerTyID: {
575 const PointerType* PT = cast<PointerType>(Ty);
576 const Type* ET = PT->getElementType();
577 bool isForward = printTypeInternal(ET);
578 std::string elemName(getCppName(ET));
579 Out << "PointerType* " << typeName << " = PointerType::get("
580 << elemName << (isForward ? "_fwd" : "")
581 << ", " << utostr(PT->getAddressSpace()) << ");";
585 case Type::VectorTyID: {
586 const VectorType* PT = cast<VectorType>(Ty);
587 const Type* ET = PT->getElementType();
588 bool isForward = printTypeInternal(ET);
589 std::string elemName(getCppName(ET));
590 Out << "VectorType* " << typeName << " = VectorType::get("
591 << elemName << (isForward ? "_fwd" : "")
592 << ", " << utostr(PT->getNumElements()) << ");";
596 case Type::OpaqueTyID: {
597 Out << "OpaqueType* " << typeName << " = OpaqueType::get();";
602 error("Invalid TypeID");
605 // If the type had a name, make sure we recreate it.
606 const std::string* progTypeName =
607 findTypeName(TheModule->getTypeSymbolTable(),Ty);
609 Out << "mod->addTypeName(\"" << *progTypeName << "\", "
614 // Pop us off the type stack
615 TypeStack.pop_back();
617 // Indicate that this type is now defined.
618 DefinedTypes.insert(Ty);
620 // Early resolve as many unresolved types as possible. Search the unresolved
621 // types map for the type we just printed. Now that its definition is complete
622 // we can resolve any previous references to it. This prevents a cascade of
624 TypeMap::iterator I = UnresolvedTypes.find(Ty);
625 if (I != UnresolvedTypes.end()) {
626 Out << "cast<OpaqueType>(" << I->second
627 << "_fwd.get())->refineAbstractTypeTo(" << I->second << ");";
629 Out << I->second << " = cast<";
630 switch (Ty->getTypeID()) {
631 case Type::FunctionTyID: Out << "FunctionType"; break;
632 case Type::ArrayTyID: Out << "ArrayType"; break;
633 case Type::StructTyID: Out << "StructType"; break;
634 case Type::VectorTyID: Out << "VectorType"; break;
635 case Type::PointerTyID: Out << "PointerType"; break;
636 case Type::OpaqueTyID: Out << "OpaqueType"; break;
637 default: Out << "NoSuchDerivedType"; break;
639 Out << ">(" << I->second << "_fwd.get());";
641 UnresolvedTypes.erase(I);
644 // Finally, separate the type definition from other with a newline.
647 // We weren't a recursive type
651 // Prints a type definition. Returns true if it could not resolve all the types
652 // in the definition but had to use a forward reference.
654 CppWriter::printType(const Type* Ty) {
655 assert(TypeStack.empty());
657 printTypeInternal(Ty);
658 assert(TypeStack.empty());
662 CppWriter::printTypes(const Module* M) {
664 // Walk the symbol table and print out all its types
665 const TypeSymbolTable& symtab = M->getTypeSymbolTable();
666 for (TypeSymbolTable::const_iterator TI = symtab.begin(), TE = symtab.end();
669 // For primitive types and types already defined, just add a name
670 TypeMap::const_iterator TNI = TypeNames.find(TI->second);
671 if (TI->second->isInteger() || TI->second->isPrimitiveType() ||
672 TNI != TypeNames.end()) {
673 Out << "mod->addTypeName(\"";
674 printEscapedString(TI->first);
675 Out << "\", " << getCppName(TI->second) << ");";
677 // For everything else, define the type
679 printType(TI->second);
683 // Add all of the global variables to the value table...
684 for (Module::const_global_iterator I = TheModule->global_begin(),
685 E = TheModule->global_end(); I != E; ++I) {
686 if (I->hasInitializer())
687 printType(I->getInitializer()->getType());
688 printType(I->getType());
691 // Add all the functions to the table
692 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
694 printType(FI->getReturnType());
695 printType(FI->getFunctionType());
696 // Add all the function arguments
697 for(Function::const_arg_iterator AI = FI->arg_begin(),
698 AE = FI->arg_end(); AI != AE; ++AI) {
699 printType(AI->getType());
702 // Add all of the basic blocks and instructions
703 for (Function::const_iterator BB = FI->begin(),
704 E = FI->end(); BB != E; ++BB) {
705 printType(BB->getType());
706 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
708 printType(I->getType());
709 for (unsigned i = 0; i < I->getNumOperands(); ++i)
710 printType(I->getOperand(i)->getType());
717 // printConstant - Print out a constant pool entry...
718 void CppWriter::printConstant(const Constant *CV) {
719 // First, if the constant is actually a GlobalValue (variable or function) or
720 // its already in the constant list then we've printed it already and we can
722 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end())
725 std::string constName(getCppName(CV));
726 std::string typeName(getCppName(CV->getType()));
727 if (CV->isNullValue()) {
728 Out << "Constant* " << constName << " = Constant::getNullValue("
733 if (isa<GlobalValue>(CV)) {
734 // Skip variables and functions, we emit them elsewhere
737 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
738 Out << "ConstantInt* " << constName << " = ConstantInt::get(APInt("
739 << cast<IntegerType>(CI->getType())->getBitWidth() << ", "
740 << " \"" << CI->getValue().toStringSigned(10) << "\", 10));";
741 } else if (isa<ConstantAggregateZero>(CV)) {
742 Out << "ConstantAggregateZero* " << constName
743 << " = ConstantAggregateZero::get(" << typeName << ");";
744 } else if (isa<ConstantPointerNull>(CV)) {
745 Out << "ConstantPointerNull* " << constName
746 << " = ConstanPointerNull::get(" << typeName << ");";
747 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
748 Out << "ConstantFP* " << constName << " = ";
751 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
752 if (CA->isString() && CA->getType()->getElementType() == Type::Int8Ty) {
753 Out << "Constant* " << constName << " = ConstantArray::get(\"";
754 std::string tmp = CA->getAsString();
755 bool nullTerminate = false;
756 if (tmp[tmp.length()-1] == 0) {
757 tmp.erase(tmp.length()-1);
758 nullTerminate = true;
760 printEscapedString(tmp);
761 // Determine if we want null termination or not.
763 Out << "\", true"; // Indicate that the null terminator should be added.
765 Out << "\", false";// No null terminator
768 Out << "std::vector<Constant*> " << constName << "_elems;";
770 unsigned N = CA->getNumOperands();
771 for (unsigned i = 0; i < N; ++i) {
772 printConstant(CA->getOperand(i)); // recurse to print operands
773 Out << constName << "_elems.push_back("
774 << getCppName(CA->getOperand(i)) << ");";
777 Out << "Constant* " << constName << " = ConstantArray::get("
778 << typeName << ", " << constName << "_elems);";
780 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
781 Out << "std::vector<Constant*> " << constName << "_fields;";
783 unsigned N = CS->getNumOperands();
784 for (unsigned i = 0; i < N; i++) {
785 printConstant(CS->getOperand(i));
786 Out << constName << "_fields.push_back("
787 << getCppName(CS->getOperand(i)) << ");";
790 Out << "Constant* " << constName << " = ConstantStruct::get("
791 << typeName << ", " << constName << "_fields);";
792 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
793 Out << "std::vector<Constant*> " << constName << "_elems;";
795 unsigned N = CP->getNumOperands();
796 for (unsigned i = 0; i < N; ++i) {
797 printConstant(CP->getOperand(i));
798 Out << constName << "_elems.push_back("
799 << getCppName(CP->getOperand(i)) << ");";
802 Out << "Constant* " << constName << " = ConstantVector::get("
803 << typeName << ", " << constName << "_elems);";
804 } else if (isa<UndefValue>(CV)) {
805 Out << "UndefValue* " << constName << " = UndefValue::get("
807 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
808 if (CE->getOpcode() == Instruction::GetElementPtr) {
809 Out << "std::vector<Constant*> " << constName << "_indices;";
811 printConstant(CE->getOperand(0));
812 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) {
813 printConstant(CE->getOperand(i));
814 Out << constName << "_indices.push_back("
815 << getCppName(CE->getOperand(i)) << ");";
818 Out << "Constant* " << constName
819 << " = ConstantExpr::getGetElementPtr("
820 << getCppName(CE->getOperand(0)) << ", "
821 << "&" << constName << "_indices[0], "
822 << constName << "_indices.size()"
824 } else if (CE->isCast()) {
825 printConstant(CE->getOperand(0));
826 Out << "Constant* " << constName << " = ConstantExpr::getCast(";
827 switch (CE->getOpcode()) {
828 default: assert(0 && "Invalid cast opcode");
829 case Instruction::Trunc: Out << "Instruction::Trunc"; break;
830 case Instruction::ZExt: Out << "Instruction::ZExt"; break;
831 case Instruction::SExt: Out << "Instruction::SExt"; break;
832 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break;
833 case Instruction::FPExt: Out << "Instruction::FPExt"; break;
834 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break;
835 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break;
836 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break;
837 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break;
838 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break;
839 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break;
840 case Instruction::BitCast: Out << "Instruction::BitCast"; break;
842 Out << ", " << getCppName(CE->getOperand(0)) << ", "
843 << getCppName(CE->getType()) << ");";
845 unsigned N = CE->getNumOperands();
846 for (unsigned i = 0; i < N; ++i ) {
847 printConstant(CE->getOperand(i));
849 Out << "Constant* " << constName << " = ConstantExpr::";
850 switch (CE->getOpcode()) {
851 case Instruction::Add: Out << "getAdd("; break;
852 case Instruction::Sub: Out << "getSub("; break;
853 case Instruction::Mul: Out << "getMul("; break;
854 case Instruction::UDiv: Out << "getUDiv("; break;
855 case Instruction::SDiv: Out << "getSDiv("; break;
856 case Instruction::FDiv: Out << "getFDiv("; break;
857 case Instruction::URem: Out << "getURem("; break;
858 case Instruction::SRem: Out << "getSRem("; break;
859 case Instruction::FRem: Out << "getFRem("; break;
860 case Instruction::And: Out << "getAnd("; break;
861 case Instruction::Or: Out << "getOr("; break;
862 case Instruction::Xor: Out << "getXor("; break;
863 case Instruction::ICmp:
864 Out << "getICmp(ICmpInst::ICMP_";
865 switch (CE->getPredicate()) {
866 case ICmpInst::ICMP_EQ: Out << "EQ"; break;
867 case ICmpInst::ICMP_NE: Out << "NE"; break;
868 case ICmpInst::ICMP_SLT: Out << "SLT"; break;
869 case ICmpInst::ICMP_ULT: Out << "ULT"; break;
870 case ICmpInst::ICMP_SGT: Out << "SGT"; break;
871 case ICmpInst::ICMP_UGT: Out << "UGT"; break;
872 case ICmpInst::ICMP_SLE: Out << "SLE"; break;
873 case ICmpInst::ICMP_ULE: Out << "ULE"; break;
874 case ICmpInst::ICMP_SGE: Out << "SGE"; break;
875 case ICmpInst::ICMP_UGE: Out << "UGE"; break;
876 default: error("Invalid ICmp Predicate");
879 case Instruction::FCmp:
880 Out << "getFCmp(FCmpInst::FCMP_";
881 switch (CE->getPredicate()) {
882 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break;
883 case FCmpInst::FCMP_ORD: Out << "ORD"; break;
884 case FCmpInst::FCMP_UNO: Out << "UNO"; break;
885 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break;
886 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break;
887 case FCmpInst::FCMP_ONE: Out << "ONE"; break;
888 case FCmpInst::FCMP_UNE: Out << "UNE"; break;
889 case FCmpInst::FCMP_OLT: Out << "OLT"; break;
890 case FCmpInst::FCMP_ULT: Out << "ULT"; break;
891 case FCmpInst::FCMP_OGT: Out << "OGT"; break;
892 case FCmpInst::FCMP_UGT: Out << "UGT"; break;
893 case FCmpInst::FCMP_OLE: Out << "OLE"; break;
894 case FCmpInst::FCMP_ULE: Out << "ULE"; break;
895 case FCmpInst::FCMP_OGE: Out << "OGE"; break;
896 case FCmpInst::FCMP_UGE: Out << "UGE"; break;
897 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break;
898 default: error("Invalid FCmp Predicate");
901 case Instruction::Shl: Out << "getShl("; break;
902 case Instruction::LShr: Out << "getLShr("; break;
903 case Instruction::AShr: Out << "getAShr("; break;
904 case Instruction::Select: Out << "getSelect("; break;
905 case Instruction::ExtractElement: Out << "getExtractElement("; break;
906 case Instruction::InsertElement: Out << "getInsertElement("; break;
907 case Instruction::ShuffleVector: Out << "getShuffleVector("; break;
909 error("Invalid constant expression");
912 Out << getCppName(CE->getOperand(0));
913 for (unsigned i = 1; i < CE->getNumOperands(); ++i)
914 Out << ", " << getCppName(CE->getOperand(i));
918 error("Bad Constant");
919 Out << "Constant* " << constName << " = 0; ";
925 CppWriter::printConstants(const Module* M) {
926 // Traverse all the global variables looking for constant initializers
927 for (Module::const_global_iterator I = TheModule->global_begin(),
928 E = TheModule->global_end(); I != E; ++I)
929 if (I->hasInitializer())
930 printConstant(I->getInitializer());
932 // Traverse the LLVM functions looking for constants
933 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
935 // Add all of the basic blocks and instructions
936 for (Function::const_iterator BB = FI->begin(),
937 E = FI->end(); BB != E; ++BB) {
938 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
940 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
941 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) {
950 void CppWriter::printVariableUses(const GlobalVariable *GV) {
951 nl(Out) << "// Type Definitions";
953 printType(GV->getType());
954 if (GV->hasInitializer()) {
955 Constant* Init = GV->getInitializer();
956 printType(Init->getType());
957 if (Function* F = dyn_cast<Function>(Init)) {
958 nl(Out)<< "/ Function Declarations"; nl(Out);
959 printFunctionHead(F);
960 } else if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
961 nl(Out) << "// Global Variable Declarations"; nl(Out);
962 printVariableHead(gv);
964 nl(Out) << "// Constant Definitions"; nl(Out);
967 if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
968 nl(Out) << "// Global Variable Definitions"; nl(Out);
969 printVariableBody(gv);
974 void CppWriter::printVariableHead(const GlobalVariable *GV) {
975 nl(Out) << "GlobalVariable* " << getCppName(GV);
977 Out << " = mod->getGlobalVariable(";
978 printEscapedString(GV->getName());
979 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)";
980 nl(Out) << "if (!" << getCppName(GV) << ") {";
981 in(); nl(Out) << getCppName(GV);
983 Out << " = new GlobalVariable(";
984 nl(Out) << "/*Type=*/";
985 printCppName(GV->getType()->getElementType());
987 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false");
989 nl(Out) << "/*Linkage=*/";
990 printLinkageType(GV->getLinkage());
992 nl(Out) << "/*Initializer=*/0, ";
993 if (GV->hasInitializer()) {
994 Out << "// has initializer, specified below";
996 nl(Out) << "/*Name=*/\"";
997 printEscapedString(GV->getName());
1002 if (GV->hasSection()) {
1004 Out << "->setSection(\"";
1005 printEscapedString(GV->getSection());
1009 if (GV->getAlignment()) {
1011 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");";
1014 if (GV->getVisibility() != GlobalValue::DefaultVisibility) {
1016 Out << "->setVisibility(";
1017 printVisibilityType(GV->getVisibility());
1022 out(); Out << "}"; nl(Out);
1027 CppWriter::printVariableBody(const GlobalVariable *GV) {
1028 if (GV->hasInitializer()) {
1030 Out << "->setInitializer(";
1031 //if (!isa<GlobalValue(GV->getInitializer()))
1033 Out << getCppName(GV->getInitializer()) << ");";
1039 CppWriter::getOpName(Value* V) {
1040 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end())
1041 return getCppName(V);
1043 // See if its alread in the map of forward references, if so just return the
1044 // name we already set up for it
1045 ForwardRefMap::const_iterator I = ForwardRefs.find(V);
1046 if (I != ForwardRefs.end())
1049 // This is a new forward reference. Generate a unique name for it
1050 std::string result(std::string("fwdref_") + utostr(uniqueNum++));
1052 // Yes, this is a hack. An Argument is the smallest instantiable value that
1053 // we can make as a placeholder for the real value. We'll replace these
1054 // Argument instances later.
1055 Out << "Argument* " << result << " = new Argument("
1056 << getCppName(V->getType()) << ");";
1058 ForwardRefs[V] = result;
1062 // printInstruction - This member is called for each Instruction in a function.
1064 CppWriter::printInstruction(const Instruction *I, const std::string& bbname) {
1065 std::string iName(getCppName(I));
1067 // Before we emit this instruction, we need to take care of generating any
1068 // forward references. So, we get the names of all the operands in advance
1069 std::string* opNames = new std::string[I->getNumOperands()];
1070 for (unsigned i = 0; i < I->getNumOperands(); i++) {
1071 opNames[i] = getOpName(I->getOperand(i));
1074 switch (I->getOpcode()) {
1075 case Instruction::Ret: {
1076 const ReturnInst* ret = cast<ReturnInst>(I);
1077 Out << "new ReturnInst("
1078 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");";
1081 case Instruction::Br: {
1082 const BranchInst* br = cast<BranchInst>(I);
1083 Out << "new BranchInst(" ;
1084 if (br->getNumOperands() == 3 ) {
1085 Out << opNames[0] << ", "
1086 << opNames[1] << ", "
1087 << opNames[2] << ", ";
1089 } else if (br->getNumOperands() == 1) {
1090 Out << opNames[0] << ", ";
1092 error("Branch with 2 operands?");
1094 Out << bbname << ");";
1097 case Instruction::Switch: {
1098 const SwitchInst* sw = cast<SwitchInst>(I);
1099 Out << "SwitchInst* " << iName << " = new SwitchInst("
1100 << opNames[0] << ", "
1101 << opNames[1] << ", "
1102 << sw->getNumCases() << ", " << bbname << ");";
1104 for (unsigned i = 2; i < sw->getNumOperands(); i += 2 ) {
1105 Out << iName << "->addCase("
1106 << opNames[i] << ", "
1107 << opNames[i+1] << ");";
1112 case Instruction::Invoke: {
1113 const InvokeInst* inv = cast<InvokeInst>(I);
1114 Out << "std::vector<Value*> " << iName << "_params;";
1116 for (unsigned i = 3; i < inv->getNumOperands(); ++i) {
1117 Out << iName << "_params.push_back("
1118 << opNames[i] << ");";
1121 Out << "InvokeInst *" << iName << " = new InvokeInst("
1122 << opNames[0] << ", "
1123 << opNames[1] << ", "
1124 << opNames[2] << ", "
1125 << iName << "_params.begin(), " << iName << "_params.end(), \"";
1126 printEscapedString(inv->getName());
1127 Out << "\", " << bbname << ");";
1128 nl(Out) << iName << "->setCallingConv(";
1129 printCallingConv(inv->getCallingConv());
1131 printParamAttrs(inv->getParamAttrs(), iName);
1132 Out << iName << "->setParamAttrs(" << iName << "_PAL);";
1136 case Instruction::Unwind: {
1137 Out << "new UnwindInst("
1141 case Instruction::Unreachable:{
1142 Out << "new UnreachableInst("
1146 case Instruction::Add:
1147 case Instruction::Sub:
1148 case Instruction::Mul:
1149 case Instruction::UDiv:
1150 case Instruction::SDiv:
1151 case Instruction::FDiv:
1152 case Instruction::URem:
1153 case Instruction::SRem:
1154 case Instruction::FRem:
1155 case Instruction::And:
1156 case Instruction::Or:
1157 case Instruction::Xor:
1158 case Instruction::Shl:
1159 case Instruction::LShr:
1160 case Instruction::AShr:{
1161 Out << "BinaryOperator* " << iName << " = BinaryOperator::create(";
1162 switch (I->getOpcode()) {
1163 case Instruction::Add: Out << "Instruction::Add"; break;
1164 case Instruction::Sub: Out << "Instruction::Sub"; break;
1165 case Instruction::Mul: Out << "Instruction::Mul"; break;
1166 case Instruction::UDiv:Out << "Instruction::UDiv"; break;
1167 case Instruction::SDiv:Out << "Instruction::SDiv"; break;
1168 case Instruction::FDiv:Out << "Instruction::FDiv"; break;
1169 case Instruction::URem:Out << "Instruction::URem"; break;
1170 case Instruction::SRem:Out << "Instruction::SRem"; break;
1171 case Instruction::FRem:Out << "Instruction::FRem"; break;
1172 case Instruction::And: Out << "Instruction::And"; break;
1173 case Instruction::Or: Out << "Instruction::Or"; break;
1174 case Instruction::Xor: Out << "Instruction::Xor"; break;
1175 case Instruction::Shl: Out << "Instruction::Shl"; break;
1176 case Instruction::LShr:Out << "Instruction::LShr"; break;
1177 case Instruction::AShr:Out << "Instruction::AShr"; break;
1178 default: Out << "Instruction::BadOpCode"; break;
1180 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1181 printEscapedString(I->getName());
1182 Out << "\", " << bbname << ");";
1185 case Instruction::FCmp: {
1186 Out << "FCmpInst* " << iName << " = new FCmpInst(";
1187 switch (cast<FCmpInst>(I)->getPredicate()) {
1188 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break;
1189 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break;
1190 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break;
1191 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break;
1192 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break;
1193 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break;
1194 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break;
1195 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break;
1196 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break;
1197 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break;
1198 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break;
1199 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break;
1200 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break;
1201 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break;
1202 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break;
1203 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break;
1204 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break;
1206 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1207 printEscapedString(I->getName());
1208 Out << "\", " << bbname << ");";
1211 case Instruction::ICmp: {
1212 Out << "ICmpInst* " << iName << " = new ICmpInst(";
1213 switch (cast<ICmpInst>(I)->getPredicate()) {
1214 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break;
1215 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break;
1216 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break;
1217 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break;
1218 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break;
1219 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break;
1220 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break;
1221 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break;
1222 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break;
1223 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break;
1224 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break;
1226 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1227 printEscapedString(I->getName());
1228 Out << "\", " << bbname << ");";
1231 case Instruction::Malloc: {
1232 const MallocInst* mallocI = cast<MallocInst>(I);
1233 Out << "MallocInst* " << iName << " = new MallocInst("
1234 << getCppName(mallocI->getAllocatedType()) << ", ";
1235 if (mallocI->isArrayAllocation())
1236 Out << opNames[0] << ", " ;
1238 printEscapedString(mallocI->getName());
1239 Out << "\", " << bbname << ");";
1240 if (mallocI->getAlignment())
1241 nl(Out) << iName << "->setAlignment("
1242 << mallocI->getAlignment() << ");";
1245 case Instruction::Free: {
1246 Out << "FreeInst* " << iName << " = new FreeInst("
1247 << getCppName(I->getOperand(0)) << ", " << bbname << ");";
1250 case Instruction::Alloca: {
1251 const AllocaInst* allocaI = cast<AllocaInst>(I);
1252 Out << "AllocaInst* " << iName << " = new AllocaInst("
1253 << getCppName(allocaI->getAllocatedType()) << ", ";
1254 if (allocaI->isArrayAllocation())
1255 Out << opNames[0] << ", ";
1257 printEscapedString(allocaI->getName());
1258 Out << "\", " << bbname << ");";
1259 if (allocaI->getAlignment())
1260 nl(Out) << iName << "->setAlignment("
1261 << allocaI->getAlignment() << ");";
1264 case Instruction::Load:{
1265 const LoadInst* load = cast<LoadInst>(I);
1266 Out << "LoadInst* " << iName << " = new LoadInst("
1267 << opNames[0] << ", \"";
1268 printEscapedString(load->getName());
1269 Out << "\", " << (load->isVolatile() ? "true" : "false" )
1270 << ", " << bbname << ");";
1273 case Instruction::Store: {
1274 const StoreInst* store = cast<StoreInst>(I);
1275 Out << "StoreInst* " << iName << " = new StoreInst("
1276 << opNames[0] << ", "
1277 << opNames[1] << ", "
1278 << (store->isVolatile() ? "true" : "false")
1279 << ", " << bbname << ");";
1282 case Instruction::GetElementPtr: {
1283 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I);
1284 if (gep->getNumOperands() <= 2) {
1285 Out << "GetElementPtrInst* " << iName << " = new GetElementPtrInst("
1287 if (gep->getNumOperands() == 2)
1288 Out << ", " << opNames[1];
1290 Out << "std::vector<Value*> " << iName << "_indices;";
1292 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) {
1293 Out << iName << "_indices.push_back("
1294 << opNames[i] << ");";
1297 Out << "Instruction* " << iName << " = new GetElementPtrInst("
1298 << opNames[0] << ", " << iName << "_indices.begin(), "
1299 << iName << "_indices.end()";
1302 printEscapedString(gep->getName());
1303 Out << "\", " << bbname << ");";
1306 case Instruction::PHI: {
1307 const PHINode* phi = cast<PHINode>(I);
1309 Out << "PHINode* " << iName << " = new PHINode("
1310 << getCppName(phi->getType()) << ", \"";
1311 printEscapedString(phi->getName());
1312 Out << "\", " << bbname << ");";
1313 nl(Out) << iName << "->reserveOperandSpace("
1314 << phi->getNumIncomingValues()
1317 for (unsigned i = 0; i < phi->getNumOperands(); i+=2) {
1318 Out << iName << "->addIncoming("
1319 << opNames[i] << ", " << opNames[i+1] << ");";
1324 case Instruction::Trunc:
1325 case Instruction::ZExt:
1326 case Instruction::SExt:
1327 case Instruction::FPTrunc:
1328 case Instruction::FPExt:
1329 case Instruction::FPToUI:
1330 case Instruction::FPToSI:
1331 case Instruction::UIToFP:
1332 case Instruction::SIToFP:
1333 case Instruction::PtrToInt:
1334 case Instruction::IntToPtr:
1335 case Instruction::BitCast: {
1336 const CastInst* cst = cast<CastInst>(I);
1337 Out << "CastInst* " << iName << " = new ";
1338 switch (I->getOpcode()) {
1339 case Instruction::Trunc: Out << "TruncInst"; break;
1340 case Instruction::ZExt: Out << "ZExtInst"; break;
1341 case Instruction::SExt: Out << "SExtInst"; break;
1342 case Instruction::FPTrunc: Out << "FPTruncInst"; break;
1343 case Instruction::FPExt: Out << "FPExtInst"; break;
1344 case Instruction::FPToUI: Out << "FPToUIInst"; break;
1345 case Instruction::FPToSI: Out << "FPToSIInst"; break;
1346 case Instruction::UIToFP: Out << "UIToFPInst"; break;
1347 case Instruction::SIToFP: Out << "SIToFPInst"; break;
1348 case Instruction::PtrToInt: Out << "PtrToIntInst"; break;
1349 case Instruction::IntToPtr: Out << "IntToPtrInst"; break;
1350 case Instruction::BitCast: Out << "BitCastInst"; break;
1351 default: assert(!"Unreachable"); break;
1353 Out << "(" << opNames[0] << ", "
1354 << getCppName(cst->getType()) << ", \"";
1355 printEscapedString(cst->getName());
1356 Out << "\", " << bbname << ");";
1359 case Instruction::Call:{
1360 const CallInst* call = cast<CallInst>(I);
1361 if (InlineAsm* ila = dyn_cast<InlineAsm>(call->getOperand(0))) {
1362 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get("
1363 << getCppName(ila->getFunctionType()) << ", \""
1364 << ila->getAsmString() << "\", \""
1365 << ila->getConstraintString() << "\","
1366 << (ila->hasSideEffects() ? "true" : "false") << ");";
1369 if (call->getNumOperands() > 2) {
1370 Out << "std::vector<Value*> " << iName << "_params;";
1372 for (unsigned i = 1; i < call->getNumOperands(); ++i) {
1373 Out << iName << "_params.push_back(" << opNames[i] << ");";
1376 Out << "CallInst* " << iName << " = new CallInst("
1377 << opNames[0] << ", " << iName << "_params.begin(), "
1378 << iName << "_params.end(), \"";
1379 } else if (call->getNumOperands() == 2) {
1380 Out << "CallInst* " << iName << " = new CallInst("
1381 << opNames[0] << ", " << opNames[1] << ", \"";
1383 Out << "CallInst* " << iName << " = new CallInst(" << opNames[0]
1386 printEscapedString(call->getName());
1387 Out << "\", " << bbname << ");";
1388 nl(Out) << iName << "->setCallingConv(";
1389 printCallingConv(call->getCallingConv());
1391 nl(Out) << iName << "->setTailCall("
1392 << (call->isTailCall() ? "true":"false");
1394 printParamAttrs(call->getParamAttrs(), iName);
1395 Out << iName << "->setParamAttrs(" << iName << "_PAL);";
1399 case Instruction::Select: {
1400 const SelectInst* sel = cast<SelectInst>(I);
1401 Out << "SelectInst* " << getCppName(sel) << " = new SelectInst(";
1402 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1403 printEscapedString(sel->getName());
1404 Out << "\", " << bbname << ");";
1407 case Instruction::UserOp1:
1409 case Instruction::UserOp2: {
1410 /// FIXME: What should be done here?
1413 case Instruction::VAArg: {
1414 const VAArgInst* va = cast<VAArgInst>(I);
1415 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst("
1416 << opNames[0] << ", " << getCppName(va->getType()) << ", \"";
1417 printEscapedString(va->getName());
1418 Out << "\", " << bbname << ");";
1421 case Instruction::ExtractElement: {
1422 const ExtractElementInst* eei = cast<ExtractElementInst>(I);
1423 Out << "ExtractElementInst* " << getCppName(eei)
1424 << " = new ExtractElementInst(" << opNames[0]
1425 << ", " << opNames[1] << ", \"";
1426 printEscapedString(eei->getName());
1427 Out << "\", " << bbname << ");";
1430 case Instruction::InsertElement: {
1431 const InsertElementInst* iei = cast<InsertElementInst>(I);
1432 Out << "InsertElementInst* " << getCppName(iei)
1433 << " = new InsertElementInst(" << opNames[0]
1434 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1435 printEscapedString(iei->getName());
1436 Out << "\", " << bbname << ");";
1439 case Instruction::ShuffleVector: {
1440 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I);
1441 Out << "ShuffleVectorInst* " << getCppName(svi)
1442 << " = new ShuffleVectorInst(" << opNames[0]
1443 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1444 printEscapedString(svi->getName());
1445 Out << "\", " << bbname << ");";
1449 DefinedValues.insert(I);
1454 // Print out the types, constants and declarations needed by one function
1455 void CppWriter::printFunctionUses(const Function* F) {
1457 nl(Out) << "// Type Definitions"; nl(Out);
1459 // Print the function's return type
1460 printType(F->getReturnType());
1462 // Print the function's function type
1463 printType(F->getFunctionType());
1465 // Print the types of each of the function's arguments
1466 for(Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1468 printType(AI->getType());
1472 // Print type definitions for every type referenced by an instruction and
1473 // make a note of any global values or constants that are referenced
1474 SmallPtrSet<GlobalValue*,64> gvs;
1475 SmallPtrSet<Constant*,64> consts;
1476 for (Function::const_iterator BB = F->begin(), BE = F->end(); BB != BE; ++BB){
1477 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
1479 // Print the type of the instruction itself
1480 printType(I->getType());
1482 // Print the type of each of the instruction's operands
1483 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
1484 Value* operand = I->getOperand(i);
1485 printType(operand->getType());
1487 // If the operand references a GVal or Constant, make a note of it
1488 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
1490 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
1491 if (GVar->hasInitializer())
1492 consts.insert(GVar->getInitializer());
1493 } else if (Constant* C = dyn_cast<Constant>(operand))
1499 // Print the function declarations for any functions encountered
1500 nl(Out) << "// Function Declarations"; nl(Out);
1501 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1503 if (Function* Fun = dyn_cast<Function>(*I)) {
1504 if (!is_inline || Fun != F)
1505 printFunctionHead(Fun);
1509 // Print the global variable declarations for any variables encountered
1510 nl(Out) << "// Global Variable Declarations"; nl(Out);
1511 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1513 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I))
1514 printVariableHead(F);
1517 // Print the constants found
1518 nl(Out) << "// Constant Definitions"; nl(Out);
1519 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), E = consts.end();
1524 // Process the global variables definitions now that all the constants have
1525 // been emitted. These definitions just couple the gvars with their constant
1527 nl(Out) << "// Global Variable Definitions"; nl(Out);
1528 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1530 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I))
1531 printVariableBody(GV);
1535 void CppWriter::printFunctionHead(const Function* F) {
1536 nl(Out) << "Function* " << getCppName(F);
1538 Out << " = mod->getFunction(\"";
1539 printEscapedString(F->getName());
1540 Out << "\", " << getCppName(F->getFunctionType()) << ");";
1541 nl(Out) << "if (!" << getCppName(F) << ") {";
1542 nl(Out) << getCppName(F);
1544 Out<< " = new Function(";
1545 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ",";
1546 nl(Out) << "/*Linkage=*/";
1547 printLinkageType(F->getLinkage());
1549 nl(Out) << "/*Name=*/\"";
1550 printEscapedString(F->getName());
1551 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : "");
1554 Out << "->setCallingConv(";
1555 printCallingConv(F->getCallingConv());
1558 if (F->hasSection()) {
1560 Out << "->setSection(\"" << F->getSection() << "\");";
1563 if (F->getAlignment()) {
1565 Out << "->setAlignment(" << F->getAlignment() << ");";
1568 if (F->getVisibility() != GlobalValue::DefaultVisibility) {
1570 Out << "->setVisibility(";
1571 printVisibilityType(F->getVisibility());
1575 if (F->hasCollector()) {
1577 Out << "->setCollector(\"" << F->getCollector() << "\");";
1584 printParamAttrs(F->getParamAttrs(), getCppName(F));
1586 Out << "->setParamAttrs(" << getCppName(F) << "_PAL);";
1590 void CppWriter::printFunctionBody(const Function *F) {
1591 if (F->isDeclaration())
1592 return; // external functions have no bodies.
1594 // Clear the DefinedValues and ForwardRefs maps because we can't have
1595 // cross-function forward refs
1596 ForwardRefs.clear();
1597 DefinedValues.clear();
1599 // Create all the argument values
1601 if (!F->arg_empty()) {
1602 Out << "Function::arg_iterator args = " << getCppName(F)
1603 << "->arg_begin();";
1606 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1608 Out << "Value* " << getCppName(AI) << " = args++;";
1610 if (AI->hasName()) {
1611 Out << getCppName(AI) << "->setName(\"" << AI->getName() << "\");";
1617 // Create all the basic blocks
1619 for (Function::const_iterator BI = F->begin(), BE = F->end();
1621 std::string bbname(getCppName(BI));
1622 Out << "BasicBlock* " << bbname << " = new BasicBlock(\"";
1624 printEscapedString(BI->getName());
1625 Out << "\"," << getCppName(BI->getParent()) << ",0);";
1629 // Output all of its basic blocks... for the function
1630 for (Function::const_iterator BI = F->begin(), BE = F->end();
1632 std::string bbname(getCppName(BI));
1633 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")";
1636 // Output all of the instructions in the basic block...
1637 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end();
1639 printInstruction(I,bbname);
1643 // Loop over the ForwardRefs and resolve them now that all instructions
1645 if (!ForwardRefs.empty()) {
1646 nl(Out) << "// Resolve Forward References";
1650 while (!ForwardRefs.empty()) {
1651 ForwardRefMap::iterator I = ForwardRefs.begin();
1652 Out << I->second << "->replaceAllUsesWith("
1653 << getCppName(I->first) << "); delete " << I->second << ";";
1655 ForwardRefs.erase(I);
1659 void CppWriter::printInline(const std::string& fname, const std::string& func) {
1660 const Function* F = TheModule->getFunction(func);
1662 error(std::string("Function '") + func + "' not found in input module");
1665 if (F->isDeclaration()) {
1666 error(std::string("Function '") + func + "' is external!");
1669 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *"
1671 unsigned arg_count = 1;
1672 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1674 Out << ", Value* arg_" << arg_count;
1679 printFunctionUses(F);
1680 printFunctionBody(F);
1682 Out << "return " << getCppName(F->begin()) << ";";
1687 void CppWriter::printModuleBody() {
1688 // Print out all the type definitions
1689 nl(Out) << "// Type Definitions"; nl(Out);
1690 printTypes(TheModule);
1692 // Functions can call each other and global variables can reference them so
1693 // define all the functions first before emitting their function bodies.
1694 nl(Out) << "// Function Declarations"; nl(Out);
1695 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1697 printFunctionHead(I);
1699 // Process the global variables declarations. We can't initialze them until
1700 // after the constants are printed so just print a header for each global
1701 nl(Out) << "// Global Variable Declarations\n"; nl(Out);
1702 for (Module::const_global_iterator I = TheModule->global_begin(),
1703 E = TheModule->global_end(); I != E; ++I) {
1704 printVariableHead(I);
1707 // Print out all the constants definitions. Constants don't recurse except
1708 // through GlobalValues. All GlobalValues have been declared at this point
1709 // so we can proceed to generate the constants.
1710 nl(Out) << "// Constant Definitions"; nl(Out);
1711 printConstants(TheModule);
1713 // Process the global variables definitions now that all the constants have
1714 // been emitted. These definitions just couple the gvars with their constant
1716 nl(Out) << "// Global Variable Definitions"; nl(Out);
1717 for (Module::const_global_iterator I = TheModule->global_begin(),
1718 E = TheModule->global_end(); I != E; ++I) {
1719 printVariableBody(I);
1722 // Finally, we can safely put out all of the function bodies.
1723 nl(Out) << "// Function Definitions"; nl(Out);
1724 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1726 if (!I->isDeclaration()) {
1727 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I)
1731 printFunctionBody(I);
1738 void CppWriter::printProgram(
1739 const std::string& fname,
1740 const std::string& mName
1742 Out << "#include <llvm/Module.h>\n";
1743 Out << "#include <llvm/DerivedTypes.h>\n";
1744 Out << "#include <llvm/Constants.h>\n";
1745 Out << "#include <llvm/GlobalVariable.h>\n";
1746 Out << "#include <llvm/Function.h>\n";
1747 Out << "#include <llvm/CallingConv.h>\n";
1748 Out << "#include <llvm/BasicBlock.h>\n";
1749 Out << "#include <llvm/Instructions.h>\n";
1750 Out << "#include <llvm/InlineAsm.h>\n";
1751 Out << "#include <llvm/ParameterAttributes.h>\n";
1752 Out << "#include <llvm/Support/MathExtras.h>\n";
1753 Out << "#include <llvm/Pass.h>\n";
1754 Out << "#include <llvm/PassManager.h>\n";
1755 Out << "#include <llvm/Analysis/Verifier.h>\n";
1756 Out << "#include <llvm/Assembly/PrintModulePass.h>\n";
1757 Out << "#include <algorithm>\n";
1758 Out << "#include <iostream>\n\n";
1759 Out << "using namespace llvm;\n\n";
1760 Out << "Module* " << fname << "();\n\n";
1761 Out << "int main(int argc, char**argv) {\n";
1762 Out << " Module* Mod = " << fname << "();\n";
1763 Out << " verifyModule(*Mod, PrintMessageAction);\n";
1764 Out << " std::cerr.flush();\n";
1765 Out << " std::cout.flush();\n";
1766 Out << " PassManager PM;\n";
1767 Out << " PM.add(new PrintModulePass(&llvm::cout));\n";
1768 Out << " PM.run(*Mod);\n";
1769 Out << " return 0;\n";
1771 printModule(fname,mName);
1774 void CppWriter::printModule(
1775 const std::string& fname,
1776 const std::string& mName
1778 nl(Out) << "Module* " << fname << "() {";
1779 nl(Out,1) << "// Module Construction";
1780 nl(Out) << "Module* mod = new Module(\"" << mName << "\");";
1781 if (!TheModule->getTargetTriple().empty()) {
1782 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");";
1784 if (!TheModule->getTargetTriple().empty()) {
1785 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple()
1789 if (!TheModule->getModuleInlineAsm().empty()) {
1790 nl(Out) << "mod->setModuleInlineAsm(\"";
1791 printEscapedString(TheModule->getModuleInlineAsm());
1796 // Loop over the dependent libraries and emit them.
1797 Module::lib_iterator LI = TheModule->lib_begin();
1798 Module::lib_iterator LE = TheModule->lib_end();
1800 Out << "mod->addLibrary(\"" << *LI << "\");";
1805 nl(Out) << "return mod;";
1810 void CppWriter::printContents(
1811 const std::string& fname, // Name of generated function
1812 const std::string& mName // Name of module generated module
1814 Out << "\nModule* " << fname << "(Module *mod) {\n";
1815 Out << "\nmod->setModuleIdentifier(\"" << mName << "\");\n";
1817 Out << "\nreturn mod;\n";
1821 void CppWriter::printFunction(
1822 const std::string& fname, // Name of generated function
1823 const std::string& funcName // Name of function to generate
1825 const Function* F = TheModule->getFunction(funcName);
1827 error(std::string("Function '") + funcName + "' not found in input module");
1830 Out << "\nFunction* " << fname << "(Module *mod) {\n";
1831 printFunctionUses(F);
1832 printFunctionHead(F);
1833 printFunctionBody(F);
1834 Out << "return " << getCppName(F) << ";\n";
1838 void CppWriter::printFunctions() {
1839 const Module::FunctionListType &funcs = TheModule->getFunctionList();
1840 Module::const_iterator I = funcs.begin();
1841 Module::const_iterator IE = funcs.end();
1843 for (; I != IE; ++I) {
1844 const Function &func = *I;
1845 if (!func.isDeclaration()) {
1846 std::string name("define_");
1847 name += func.getName();
1848 printFunction(name, func.getName());
1853 void CppWriter::printVariable(
1854 const std::string& fname, /// Name of generated function
1855 const std::string& varName // Name of variable to generate
1857 const GlobalVariable* GV = TheModule->getNamedGlobal(varName);
1860 error(std::string("Variable '") + varName + "' not found in input module");
1863 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n";
1864 printVariableUses(GV);
1865 printVariableHead(GV);
1866 printVariableBody(GV);
1867 Out << "return " << getCppName(GV) << ";\n";
1871 void CppWriter::printType(
1872 const std::string& fname, /// Name of generated function
1873 const std::string& typeName // Name of type to generate
1875 const Type* Ty = TheModule->getTypeByName(typeName);
1877 error(std::string("Type '") + typeName + "' not found in input module");
1880 Out << "\nType* " << fname << "(Module *mod) {\n";
1882 Out << "return " << getCppName(Ty) << ";\n";
1886 } // end anonymous llvm
1890 void WriteModuleToCppFile(Module* mod, std::ostream& o) {
1891 // Initialize a CppWriter for us to use
1892 CppWriter W(o, mod);
1895 o << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n";
1897 // Get the name of the function we're supposed to generate
1898 std::string fname = FuncName.getValue();
1900 // Get the name of the thing we are to generate
1901 std::string tgtname = NameToGenerate.getValue();
1902 if (GenerationType == GenModule ||
1903 GenerationType == GenContents ||
1904 GenerationType == GenProgram ||
1905 GenerationType == GenFunctions) {
1906 if (tgtname == "!bad!") {
1907 if (mod->getModuleIdentifier() == "-")
1908 tgtname = "<stdin>";
1910 tgtname = mod->getModuleIdentifier();
1912 } else if (tgtname == "!bad!") {
1913 W.error("You must use the -for option with -gen-{function,variable,type}");
1916 switch (WhatToGenerate(GenerationType)) {
1919 fname = "makeLLVMModule";
1920 W.printProgram(fname,tgtname);
1924 fname = "makeLLVMModule";
1925 W.printModule(fname,tgtname);
1929 fname = "makeLLVMModuleContents";
1930 W.printContents(fname,tgtname);
1934 fname = "makeLLVMFunction";
1935 W.printFunction(fname,tgtname);
1942 fname = "makeLLVMInline";
1943 W.printInline(fname,tgtname);
1947 fname = "makeLLVMVariable";
1948 W.printVariable(fname,tgtname);
1952 fname = "makeLLVMType";
1953 W.printType(fname,tgtname);
1956 W.error("Invalid generation option");