1 //===-- CppWriter.cpp - Printing LLVM IR as a C++ Source File -------------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by Reid Spencer and is distributed under the
6 // University of Illinois Open Source 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"));
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(GenInline, "gen-inline", "Generate an inline function"),
61 clEnumValN(GenVariable,"gen-variable", "Generate a variable definition"),
62 clEnumValN(GenType, "gen-type", "Generate a type definition"),
67 static cl::opt<std::string> NameToGenerate("for", cl::Optional,
68 cl::desc("Specify the name of the thing to generate"),
72 typedef std::vector<const Type*> TypeList;
73 typedef std::map<const Type*,std::string> TypeMap;
74 typedef std::map<const Value*,std::string> ValueMap;
75 typedef std::set<std::string> NameSet;
76 typedef std::set<const Type*> TypeSet;
77 typedef std::set<const Value*> ValueSet;
78 typedef std::map<const Value*,std::string> ForwardRefMap;
83 const Module *TheModule;
87 TypeMap UnresolvedTypes;
91 ValueSet DefinedValues;
92 ForwardRefMap ForwardRefs;
96 inline CppWriter(std::ostream &o, const Module *M, const char* pn="llvm2cpp")
97 : progname(pn), Out(o), TheModule(M), uniqueNum(0), TypeNames(),
98 ValueNames(), UnresolvedTypes(), TypeStack(), is_inline(false) { }
100 const Module* getModule() { return TheModule; }
102 void printProgram(const std::string& fname, const std::string& modName );
103 void printModule(const std::string& fname, const std::string& modName );
104 void printContents(const std::string& fname, const std::string& modName );
105 void printFunction(const std::string& fname, const std::string& funcName );
106 void printInline(const std::string& fname, const std::string& funcName );
107 void printVariable(const std::string& fname, const std::string& varName );
108 void printType(const std::string& fname, const std::string& typeName );
110 void error(const std::string& msg);
113 void printLinkageType(GlobalValue::LinkageTypes LT);
114 void printCallingConv(unsigned cc);
115 void printEscapedString(const std::string& str);
116 void printCFP(const ConstantFP* CFP);
118 std::string getCppName(const Type* val);
119 inline void printCppName(const Type* val);
121 std::string getCppName(const Value* val);
122 inline void printCppName(const Value* val);
124 bool printTypeInternal(const Type* Ty);
125 inline void printType(const Type* Ty);
126 void printTypes(const Module* M);
128 void printConstant(const Constant *CPV);
129 void printConstants(const Module* M);
131 void printVariableUses(const GlobalVariable *GV);
132 void printVariableHead(const GlobalVariable *GV);
133 void printVariableBody(const GlobalVariable *GV);
135 void printFunctionUses(const Function *F);
136 void printFunctionHead(const Function *F);
137 void printFunctionBody(const Function *F);
138 void printInstruction(const Instruction *I, const std::string& bbname);
139 std::string getOpName(Value*);
141 void printModuleBody();
145 static unsigned indent_level = 0;
146 inline std::ostream& nl(std::ostream& Out, int delta = 0) {
148 if (delta >= 0 || indent_level >= unsigned(-delta))
149 indent_level += delta;
150 for (unsigned i = 0; i < indent_level; ++i)
155 inline void in() { indent_level++; }
156 inline void out() { if (indent_level >0) indent_level--; }
159 sanitize(std::string& str) {
160 for (size_t i = 0; i < str.length(); ++i)
161 if (!isalnum(str[i]) && str[i] != '_')
166 getTypePrefix(const Type* Ty ) {
167 switch (Ty->getTypeID()) {
168 case Type::VoidTyID: return "void_";
169 case Type::IntegerTyID:
170 return std::string("int") + utostr(cast<IntegerType>(Ty)->getBitWidth()) +
172 case Type::FloatTyID: return "float_";
173 case Type::DoubleTyID: return "double_";
174 case Type::LabelTyID: return "label_";
175 case Type::FunctionTyID: return "func_";
176 case Type::StructTyID: return "struct_";
177 case Type::ArrayTyID: return "array_";
178 case Type::PointerTyID: return "ptr_";
179 case Type::VectorTyID: return "packed_";
180 case Type::OpaqueTyID: return "opaque_";
181 default: return "other_";
186 // Looks up the type in the symbol table and returns a pointer to its name or
187 // a null pointer if it wasn't found. Note that this isn't the same as the
188 // Mode::getTypeName function which will return an empty string, not a null
189 // pointer if the name is not found.
190 inline const std::string*
191 findTypeName(const TypeSymbolTable& ST, const Type* Ty)
193 TypeSymbolTable::const_iterator TI = ST.begin();
194 TypeSymbolTable::const_iterator TE = ST.end();
195 for (;TI != TE; ++TI)
196 if (TI->second == Ty)
202 CppWriter::error(const std::string& msg) {
203 std::cerr << progname << ": " << msg << "\n";
207 // printCFP - Print a floating point constant .. very carefully :)
208 // This makes sure that conversion to/from floating yields the same binary
209 // result so that we don't lose precision.
211 CppWriter::printCFP(const ConstantFP *CFP) {
212 Out << "ConstantFP::get(";
213 if (CFP->getType() == Type::DoubleTy)
214 Out << "Type::DoubleTy, ";
216 Out << "Type::FloatTy, ";
219 sprintf(Buffer, "%A", CFP->getValue());
220 if ((!strncmp(Buffer, "0x", 2) ||
221 !strncmp(Buffer, "-0x", 3) ||
222 !strncmp(Buffer, "+0x", 3)) &&
223 (atof(Buffer) == CFP->getValue()))
224 if (CFP->getType() == Type::DoubleTy)
225 Out << "BitsToDouble(" << Buffer << ")";
227 Out << "BitsToFloat(" << Buffer << ")";
230 std::string StrVal = ftostr(CFP->getValue());
232 while (StrVal[0] == ' ')
233 StrVal.erase(StrVal.begin());
235 // Check to make sure that the stringized number is not some string like
236 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex.
237 if (((StrVal[0] >= '0' && StrVal[0] <= '9') ||
238 ((StrVal[0] == '-' || StrVal[0] == '+') &&
239 (StrVal[1] >= '0' && StrVal[1] <= '9'))) &&
240 (atof(StrVal.c_str()) == CFP->getValue()))
241 if (CFP->getType() == Type::DoubleTy)
245 else if (CFP->getType() == Type::DoubleTy)
246 Out << "BitsToDouble(0x" << std::hex << DoubleToBits(CFP->getValue())
247 << std::dec << "ULL) /* " << StrVal << " */";
249 Out << "BitsToFloat(0x" << std::hex << FloatToBits(CFP->getValue())
250 << std::dec << "U) /* " << StrVal << " */";
258 CppWriter::printCallingConv(unsigned cc){
259 // Print the calling convention.
261 case CallingConv::C: Out << "CallingConv::C"; break;
262 case CallingConv::Fast: Out << "CallingConv::Fast"; break;
263 case CallingConv::Cold: Out << "CallingConv::Cold"; break;
264 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break;
265 default: Out << cc; break;
270 CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
272 case GlobalValue::InternalLinkage:
273 Out << "GlobalValue::InternalLinkage"; break;
274 case GlobalValue::LinkOnceLinkage:
275 Out << "GlobalValue::LinkOnceLinkage "; break;
276 case GlobalValue::WeakLinkage:
277 Out << "GlobalValue::WeakLinkage"; break;
278 case GlobalValue::AppendingLinkage:
279 Out << "GlobalValue::AppendingLinkage"; break;
280 case GlobalValue::ExternalLinkage:
281 Out << "GlobalValue::ExternalLinkage"; break;
282 case GlobalValue::DLLImportLinkage:
283 Out << "GlobalValue::DLLImportLinkage"; break;
284 case GlobalValue::DLLExportLinkage:
285 Out << "GlobalValue::DLLExportLinkage"; break;
286 case GlobalValue::ExternalWeakLinkage:
287 Out << "GlobalValue::ExternalWeakLinkage"; break;
288 case GlobalValue::GhostLinkage:
289 Out << "GlobalValue::GhostLinkage"; break;
293 // printEscapedString - Print each character of the specified string, escaping
294 // it if it is not printable or if it is an escape char.
296 CppWriter::printEscapedString(const std::string &Str) {
297 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
298 unsigned char C = Str[i];
299 if (isprint(C) && C != '"' && C != '\\') {
303 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
304 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
310 CppWriter::getCppName(const Type* Ty)
312 // First, handle the primitive types .. easy
313 if (Ty->isPrimitiveType() || Ty->isInteger()) {
314 switch (Ty->getTypeID()) {
315 case Type::VoidTyID: return "Type::VoidTy";
316 case Type::IntegerTyID: {
317 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
318 return "IntegerType::get(" + utostr(BitWidth) + ")";
320 case Type::FloatTyID: return "Type::FloatTy";
321 case Type::DoubleTyID: return "Type::DoubleTy";
322 case Type::LabelTyID: return "Type::LabelTy";
324 error("Invalid primitive type");
327 return "Type::VoidTy"; // shouldn't be returned, but make it sensible
330 // Now, see if we've seen the type before and return that
331 TypeMap::iterator I = TypeNames.find(Ty);
332 if (I != TypeNames.end())
335 // Okay, let's build a new name for this type. Start with a prefix
336 const char* prefix = 0;
337 switch (Ty->getTypeID()) {
338 case Type::FunctionTyID: prefix = "FuncTy_"; break;
339 case Type::StructTyID: prefix = "StructTy_"; break;
340 case Type::ArrayTyID: prefix = "ArrayTy_"; break;
341 case Type::PointerTyID: prefix = "PointerTy_"; break;
342 case Type::OpaqueTyID: prefix = "OpaqueTy_"; break;
343 case Type::VectorTyID: prefix = "VectorTy_"; break;
344 default: prefix = "OtherTy_"; break; // prevent breakage
347 // See if the type has a name in the symboltable and build accordingly
348 const std::string* tName = findTypeName(TheModule->getTypeSymbolTable(), Ty);
351 name = std::string(prefix) + *tName;
353 name = std::string(prefix) + utostr(uniqueNum++);
357 return TypeNames[Ty] = name;
361 CppWriter::printCppName(const Type* Ty)
363 printEscapedString(getCppName(Ty));
367 CppWriter::getCppName(const Value* val) {
369 ValueMap::iterator I = ValueNames.find(val);
370 if (I != ValueNames.end() && I->first == val)
373 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) {
374 name = std::string("gvar_") +
375 getTypePrefix(GV->getType()->getElementType());
376 } else if (isa<Function>(val)) {
377 name = std::string("func_");
378 } else if (const Constant* C = dyn_cast<Constant>(val)) {
379 name = std::string("const_") + getTypePrefix(C->getType());
380 } else if (const Argument* Arg = dyn_cast<Argument>(val)) {
382 unsigned argNum = std::distance(Arg->getParent()->arg_begin(),
383 Function::const_arg_iterator(Arg)) + 1;
384 name = std::string("arg_") + utostr(argNum);
385 NameSet::iterator NI = UsedNames.find(name);
386 if (NI != UsedNames.end())
387 name += std::string("_") + utostr(uniqueNum++);
388 UsedNames.insert(name);
389 return ValueNames[val] = name;
391 name = getTypePrefix(val->getType());
394 name = getTypePrefix(val->getType());
396 name += (val->hasName() ? val->getName() : utostr(uniqueNum++));
398 NameSet::iterator NI = UsedNames.find(name);
399 if (NI != UsedNames.end())
400 name += std::string("_") + utostr(uniqueNum++);
401 UsedNames.insert(name);
402 return ValueNames[val] = name;
406 CppWriter::printCppName(const Value* val) {
407 printEscapedString(getCppName(val));
411 CppWriter::printTypeInternal(const Type* Ty) {
412 // We don't print definitions for primitive types
413 if (Ty->isPrimitiveType() || Ty->isInteger())
416 // If we already defined this type, we don't need to define it again.
417 if (DefinedTypes.find(Ty) != DefinedTypes.end())
420 // Everything below needs the name for the type so get it now.
421 std::string typeName(getCppName(Ty));
423 // Search the type stack for recursion. If we find it, then generate this
424 // as an OpaqueType, but make sure not to do this multiple times because
425 // the type could appear in multiple places on the stack. Once the opaque
426 // definition is issued, it must not be re-issued. Consequently we have to
427 // check the UnresolvedTypes list as well.
428 TypeList::const_iterator TI = std::find(TypeStack.begin(),TypeStack.end(),Ty);
429 if (TI != TypeStack.end()) {
430 TypeMap::const_iterator I = UnresolvedTypes.find(Ty);
431 if (I == UnresolvedTypes.end()) {
432 Out << "PATypeHolder " << typeName << "_fwd = OpaqueType::get();";
434 UnresolvedTypes[Ty] = typeName;
439 // We're going to print a derived type which, by definition, contains other
440 // types. So, push this one we're printing onto the type stack to assist with
441 // recursive definitions.
442 TypeStack.push_back(Ty);
444 // Print the type definition
445 switch (Ty->getTypeID()) {
446 case Type::FunctionTyID: {
447 const FunctionType* FT = cast<FunctionType>(Ty);
448 Out << "std::vector<const Type*>" << typeName << "_args;";
450 FunctionType::param_iterator PI = FT->param_begin();
451 FunctionType::param_iterator PE = FT->param_end();
452 for (; PI != PE; ++PI) {
453 const Type* argTy = static_cast<const Type*>(*PI);
454 bool isForward = printTypeInternal(argTy);
455 std::string argName(getCppName(argTy));
456 Out << typeName << "_args.push_back(" << argName;
462 const ParamAttrsList *PAL = FT->getParamAttrs();
463 Out << "ParamAttrsList *" << typeName << "_PAL = 0;";
466 Out << '{'; in(); nl(Out);
467 Out << "ParamAttrsVector Attrs;"; nl(Out);
468 Out << "ParamAttrsWithIndex PAWI;"; nl(Out);
469 for (unsigned i = 0; i < PAL->size(); ++i) {
470 uint16_t index = PAL->getParamIndex(i);
471 uint16_t attrs = PAL->getParamAttrs(index);
472 Out << "PAWI.index = " << index << "; PAWI.attrs = 0 ";
473 if (attrs & ParamAttr::SExt)
474 Out << " | ParamAttr::SExt";
475 if (attrs & ParamAttr::ZExt)
476 Out << " | ParamAttr::ZExt";
477 if (attrs & ParamAttr::NoAlias)
478 Out << " | ParamAttr::NoAlias";
479 if (attrs & ParamAttr::StructRet)
480 Out << " | ParamAttr::StructRet";
481 if (attrs & ParamAttr::InReg)
482 Out << " | ParamAttr::InReg";
483 if (attrs & ParamAttr::NoReturn)
484 Out << " | ParamAttr::NoReturn";
485 if (attrs & ParamAttr::NoUnwind)
486 Out << " | ParamAttr::NoUnwind";
489 Out << "Attrs.push_back(PAWI);";
492 Out << typeName << "_PAL = ParamAttrsList::get(Attrs);";
497 bool isForward = printTypeInternal(FT->getReturnType());
498 std::string retTypeName(getCppName(FT->getReturnType()));
499 Out << "FunctionType* " << typeName << " = FunctionType::get(";
500 in(); nl(Out) << "/*Result=*/" << retTypeName;
504 nl(Out) << "/*Params=*/" << typeName << "_args,";
505 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true," : "false,") ;
506 nl(Out) << "/*ParamAttrs=*/" << typeName << "_PAL" << ");";
511 case Type::StructTyID: {
512 const StructType* ST = cast<StructType>(Ty);
513 Out << "std::vector<const Type*>" << typeName << "_fields;";
515 StructType::element_iterator EI = ST->element_begin();
516 StructType::element_iterator EE = ST->element_end();
517 for (; EI != EE; ++EI) {
518 const Type* fieldTy = static_cast<const Type*>(*EI);
519 bool isForward = printTypeInternal(fieldTy);
520 std::string fieldName(getCppName(fieldTy));
521 Out << typeName << "_fields.push_back(" << fieldName;
527 Out << "StructType* " << typeName << " = StructType::get("
528 << typeName << "_fields, /*isPacked=*/"
529 << (ST->isPacked() ? "true" : "false") << ");";
533 case Type::ArrayTyID: {
534 const ArrayType* AT = cast<ArrayType>(Ty);
535 const Type* ET = AT->getElementType();
536 bool isForward = printTypeInternal(ET);
537 std::string elemName(getCppName(ET));
538 Out << "ArrayType* " << typeName << " = ArrayType::get("
539 << elemName << (isForward ? "_fwd" : "")
540 << ", " << utostr(AT->getNumElements()) << ");";
544 case Type::PointerTyID: {
545 const PointerType* PT = cast<PointerType>(Ty);
546 const Type* ET = PT->getElementType();
547 bool isForward = printTypeInternal(ET);
548 std::string elemName(getCppName(ET));
549 Out << "PointerType* " << typeName << " = PointerType::get("
550 << elemName << (isForward ? "_fwd" : "") << ");";
554 case Type::VectorTyID: {
555 const VectorType* PT = cast<VectorType>(Ty);
556 const Type* ET = PT->getElementType();
557 bool isForward = printTypeInternal(ET);
558 std::string elemName(getCppName(ET));
559 Out << "VectorType* " << typeName << " = VectorType::get("
560 << elemName << (isForward ? "_fwd" : "")
561 << ", " << utostr(PT->getNumElements()) << ");";
565 case Type::OpaqueTyID: {
566 Out << "OpaqueType* " << typeName << " = OpaqueType::get();";
571 error("Invalid TypeID");
574 // If the type had a name, make sure we recreate it.
575 const std::string* progTypeName =
576 findTypeName(TheModule->getTypeSymbolTable(),Ty);
578 Out << "mod->addTypeName(\"" << *progTypeName << "\", "
583 // Pop us off the type stack
584 TypeStack.pop_back();
586 // Indicate that this type is now defined.
587 DefinedTypes.insert(Ty);
589 // Early resolve as many unresolved types as possible. Search the unresolved
590 // types map for the type we just printed. Now that its definition is complete
591 // we can resolve any previous references to it. This prevents a cascade of
593 TypeMap::iterator I = UnresolvedTypes.find(Ty);
594 if (I != UnresolvedTypes.end()) {
595 Out << "cast<OpaqueType>(" << I->second
596 << "_fwd.get())->refineAbstractTypeTo(" << I->second << ");";
598 Out << I->second << " = cast<";
599 switch (Ty->getTypeID()) {
600 case Type::FunctionTyID: Out << "FunctionType"; break;
601 case Type::ArrayTyID: Out << "ArrayType"; break;
602 case Type::StructTyID: Out << "StructType"; break;
603 case Type::VectorTyID: Out << "VectorType"; break;
604 case Type::PointerTyID: Out << "PointerType"; break;
605 case Type::OpaqueTyID: Out << "OpaqueType"; break;
606 default: Out << "NoSuchDerivedType"; break;
608 Out << ">(" << I->second << "_fwd.get());";
610 UnresolvedTypes.erase(I);
613 // Finally, separate the type definition from other with a newline.
616 // We weren't a recursive type
620 // Prints a type definition. Returns true if it could not resolve all the types
621 // in the definition but had to use a forward reference.
623 CppWriter::printType(const Type* Ty) {
624 assert(TypeStack.empty());
626 printTypeInternal(Ty);
627 assert(TypeStack.empty());
631 CppWriter::printTypes(const Module* M) {
633 // Walk the symbol table and print out all its types
634 const TypeSymbolTable& symtab = M->getTypeSymbolTable();
635 for (TypeSymbolTable::const_iterator TI = symtab.begin(), TE = symtab.end();
638 // For primitive types and types already defined, just add a name
639 TypeMap::const_iterator TNI = TypeNames.find(TI->second);
640 if (TI->second->isInteger() || TI->second->isPrimitiveType() ||
641 TNI != TypeNames.end()) {
642 Out << "mod->addTypeName(\"";
643 printEscapedString(TI->first);
644 Out << "\", " << getCppName(TI->second) << ");";
646 // For everything else, define the type
648 printType(TI->second);
652 // Add all of the global variables to the value table...
653 for (Module::const_global_iterator I = TheModule->global_begin(),
654 E = TheModule->global_end(); I != E; ++I) {
655 if (I->hasInitializer())
656 printType(I->getInitializer()->getType());
657 printType(I->getType());
660 // Add all the functions to the table
661 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
663 printType(FI->getReturnType());
664 printType(FI->getFunctionType());
665 // Add all the function arguments
666 for(Function::const_arg_iterator AI = FI->arg_begin(),
667 AE = FI->arg_end(); AI != AE; ++AI) {
668 printType(AI->getType());
671 // Add all of the basic blocks and instructions
672 for (Function::const_iterator BB = FI->begin(),
673 E = FI->end(); BB != E; ++BB) {
674 printType(BB->getType());
675 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
677 printType(I->getType());
678 for (unsigned i = 0; i < I->getNumOperands(); ++i)
679 printType(I->getOperand(i)->getType());
686 // printConstant - Print out a constant pool entry...
687 void CppWriter::printConstant(const Constant *CV) {
688 // First, if the constant is actually a GlobalValue (variable or function) or
689 // its already in the constant list then we've printed it already and we can
691 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end())
694 std::string constName(getCppName(CV));
695 std::string typeName(getCppName(CV->getType()));
696 if (CV->isNullValue()) {
697 Out << "Constant* " << constName << " = Constant::getNullValue("
702 if (isa<GlobalValue>(CV)) {
703 // Skip variables and functions, we emit them elsewhere
706 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
707 Out << "ConstantInt* " << constName << " = ConstantInt::get(APInt("
708 << cast<IntegerType>(CI->getType())->getBitWidth() << ", "
709 << " \"" << CI->getValue().toStringSigned(10) << "\", 10));";
710 } else if (isa<ConstantAggregateZero>(CV)) {
711 Out << "ConstantAggregateZero* " << constName
712 << " = ConstantAggregateZero::get(" << typeName << ");";
713 } else if (isa<ConstantPointerNull>(CV)) {
714 Out << "ConstantPointerNull* " << constName
715 << " = ConstanPointerNull::get(" << typeName << ");";
716 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
717 Out << "ConstantFP* " << constName << " = ";
720 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
721 if (CA->isString() && CA->getType()->getElementType() == Type::Int8Ty) {
722 Out << "Constant* " << constName << " = ConstantArray::get(\"";
723 std::string tmp = CA->getAsString();
724 bool nullTerminate = false;
725 if (tmp[tmp.length()-1] == 0) {
726 tmp.erase(tmp.length()-1);
727 nullTerminate = true;
729 printEscapedString(tmp);
730 // Determine if we want null termination or not.
732 Out << "\", true"; // Indicate that the null terminator should be added.
734 Out << "\", false";// No null terminator
737 Out << "std::vector<Constant*> " << constName << "_elems;";
739 unsigned N = CA->getNumOperands();
740 for (unsigned i = 0; i < N; ++i) {
741 printConstant(CA->getOperand(i)); // recurse to print operands
742 Out << constName << "_elems.push_back("
743 << getCppName(CA->getOperand(i)) << ");";
746 Out << "Constant* " << constName << " = ConstantArray::get("
747 << typeName << ", " << constName << "_elems);";
749 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
750 Out << "std::vector<Constant*> " << constName << "_fields;";
752 unsigned N = CS->getNumOperands();
753 for (unsigned i = 0; i < N; i++) {
754 printConstant(CS->getOperand(i));
755 Out << constName << "_fields.push_back("
756 << getCppName(CS->getOperand(i)) << ");";
759 Out << "Constant* " << constName << " = ConstantStruct::get("
760 << typeName << ", " << constName << "_fields);";
761 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
762 Out << "std::vector<Constant*> " << constName << "_elems;";
764 unsigned N = CP->getNumOperands();
765 for (unsigned i = 0; i < N; ++i) {
766 printConstant(CP->getOperand(i));
767 Out << constName << "_elems.push_back("
768 << getCppName(CP->getOperand(i)) << ");";
771 Out << "Constant* " << constName << " = ConstantVector::get("
772 << typeName << ", " << constName << "_elems);";
773 } else if (isa<UndefValue>(CV)) {
774 Out << "UndefValue* " << constName << " = UndefValue::get("
776 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
777 if (CE->getOpcode() == Instruction::GetElementPtr) {
778 Out << "std::vector<Constant*> " << constName << "_indices;";
780 printConstant(CE->getOperand(0));
781 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) {
782 printConstant(CE->getOperand(i));
783 Out << constName << "_indices.push_back("
784 << getCppName(CE->getOperand(i)) << ");";
787 Out << "Constant* " << constName
788 << " = ConstantExpr::getGetElementPtr("
789 << getCppName(CE->getOperand(0)) << ", "
790 << "&" << constName << "_indices[0], "
791 << constName << "_indices.size()"
793 } else if (CE->isCast()) {
794 printConstant(CE->getOperand(0));
795 Out << "Constant* " << constName << " = ConstantExpr::getCast(";
796 switch (CE->getOpcode()) {
797 default: assert(0 && "Invalid cast opcode");
798 case Instruction::Trunc: Out << "Instruction::Trunc"; break;
799 case Instruction::ZExt: Out << "Instruction::ZExt"; break;
800 case Instruction::SExt: Out << "Instruction::SExt"; break;
801 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break;
802 case Instruction::FPExt: Out << "Instruction::FPExt"; break;
803 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break;
804 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break;
805 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break;
806 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break;
807 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break;
808 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break;
809 case Instruction::BitCast: Out << "Instruction::BitCast"; break;
811 Out << ", " << getCppName(CE->getOperand(0)) << ", "
812 << getCppName(CE->getType()) << ");";
814 unsigned N = CE->getNumOperands();
815 for (unsigned i = 0; i < N; ++i ) {
816 printConstant(CE->getOperand(i));
818 Out << "Constant* " << constName << " = ConstantExpr::";
819 switch (CE->getOpcode()) {
820 case Instruction::Add: Out << "getAdd("; break;
821 case Instruction::Sub: Out << "getSub("; break;
822 case Instruction::Mul: Out << "getMul("; break;
823 case Instruction::UDiv: Out << "getUDiv("; break;
824 case Instruction::SDiv: Out << "getSDiv("; break;
825 case Instruction::FDiv: Out << "getFDiv("; break;
826 case Instruction::URem: Out << "getURem("; break;
827 case Instruction::SRem: Out << "getSRem("; break;
828 case Instruction::FRem: Out << "getFRem("; break;
829 case Instruction::And: Out << "getAnd("; break;
830 case Instruction::Or: Out << "getOr("; break;
831 case Instruction::Xor: Out << "getXor("; break;
832 case Instruction::ICmp:
833 Out << "getICmp(ICmpInst::ICMP_";
834 switch (CE->getPredicate()) {
835 case ICmpInst::ICMP_EQ: Out << "EQ"; break;
836 case ICmpInst::ICMP_NE: Out << "NE"; break;
837 case ICmpInst::ICMP_SLT: Out << "SLT"; break;
838 case ICmpInst::ICMP_ULT: Out << "ULT"; break;
839 case ICmpInst::ICMP_SGT: Out << "SGT"; break;
840 case ICmpInst::ICMP_UGT: Out << "UGT"; break;
841 case ICmpInst::ICMP_SLE: Out << "SLE"; break;
842 case ICmpInst::ICMP_ULE: Out << "ULE"; break;
843 case ICmpInst::ICMP_SGE: Out << "SGE"; break;
844 case ICmpInst::ICMP_UGE: Out << "UGE"; break;
845 default: error("Invalid ICmp Predicate");
848 case Instruction::FCmp:
849 Out << "getFCmp(FCmpInst::FCMP_";
850 switch (CE->getPredicate()) {
851 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break;
852 case FCmpInst::FCMP_ORD: Out << "ORD"; break;
853 case FCmpInst::FCMP_UNO: Out << "UNO"; break;
854 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break;
855 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break;
856 case FCmpInst::FCMP_ONE: Out << "ONE"; break;
857 case FCmpInst::FCMP_UNE: Out << "UNE"; break;
858 case FCmpInst::FCMP_OLT: Out << "OLT"; break;
859 case FCmpInst::FCMP_ULT: Out << "ULT"; break;
860 case FCmpInst::FCMP_OGT: Out << "OGT"; break;
861 case FCmpInst::FCMP_UGT: Out << "UGT"; break;
862 case FCmpInst::FCMP_OLE: Out << "OLE"; break;
863 case FCmpInst::FCMP_ULE: Out << "ULE"; break;
864 case FCmpInst::FCMP_OGE: Out << "OGE"; break;
865 case FCmpInst::FCMP_UGE: Out << "UGE"; break;
866 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break;
867 default: error("Invalid FCmp Predicate");
870 case Instruction::Shl: Out << "getShl("; break;
871 case Instruction::LShr: Out << "getLShr("; break;
872 case Instruction::AShr: Out << "getAShr("; break;
873 case Instruction::Select: Out << "getSelect("; break;
874 case Instruction::ExtractElement: Out << "getExtractElement("; break;
875 case Instruction::InsertElement: Out << "getInsertElement("; break;
876 case Instruction::ShuffleVector: Out << "getShuffleVector("; break;
878 error("Invalid constant expression");
881 Out << getCppName(CE->getOperand(0));
882 for (unsigned i = 1; i < CE->getNumOperands(); ++i)
883 Out << ", " << getCppName(CE->getOperand(i));
887 error("Bad Constant");
888 Out << "Constant* " << constName << " = 0; ";
894 CppWriter::printConstants(const Module* M) {
895 // Traverse all the global variables looking for constant initializers
896 for (Module::const_global_iterator I = TheModule->global_begin(),
897 E = TheModule->global_end(); I != E; ++I)
898 if (I->hasInitializer())
899 printConstant(I->getInitializer());
901 // Traverse the LLVM functions looking for constants
902 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
904 // Add all of the basic blocks and instructions
905 for (Function::const_iterator BB = FI->begin(),
906 E = FI->end(); BB != E; ++BB) {
907 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
909 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
910 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) {
919 void CppWriter::printVariableUses(const GlobalVariable *GV) {
920 nl(Out) << "// Type Definitions";
922 printType(GV->getType());
923 if (GV->hasInitializer()) {
924 Constant* Init = GV->getInitializer();
925 printType(Init->getType());
926 if (Function* F = dyn_cast<Function>(Init)) {
927 nl(Out)<< "/ Function Declarations"; nl(Out);
928 printFunctionHead(F);
929 } else if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
930 nl(Out) << "// Global Variable Declarations"; nl(Out);
931 printVariableHead(gv);
933 nl(Out) << "// Constant Definitions"; nl(Out);
936 if (GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
937 nl(Out) << "// Global Variable Definitions"; nl(Out);
938 printVariableBody(gv);
943 void CppWriter::printVariableHead(const GlobalVariable *GV) {
944 nl(Out) << "GlobalVariable* " << getCppName(GV);
946 Out << " = mod->getGlobalVariable(";
947 printEscapedString(GV->getName());
948 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)";
949 nl(Out) << "if (!" << getCppName(GV) << ") {";
950 in(); nl(Out) << getCppName(GV);
952 Out << " = new GlobalVariable(";
953 nl(Out) << "/*Type=*/";
954 printCppName(GV->getType()->getElementType());
956 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false");
958 nl(Out) << "/*Linkage=*/";
959 printLinkageType(GV->getLinkage());
961 nl(Out) << "/*Initializer=*/0, ";
962 if (GV->hasInitializer()) {
963 Out << "// has initializer, specified below";
965 nl(Out) << "/*Name=*/\"";
966 printEscapedString(GV->getName());
971 if (GV->hasSection()) {
973 Out << "->setSection(\"";
974 printEscapedString(GV->getSection());
978 if (GV->getAlignment()) {
980 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");";
984 out(); Out << "}"; nl(Out);
989 CppWriter::printVariableBody(const GlobalVariable *GV) {
990 if (GV->hasInitializer()) {
992 Out << "->setInitializer(";
993 //if (!isa<GlobalValue(GV->getInitializer()))
995 Out << getCppName(GV->getInitializer()) << ");";
1001 CppWriter::getOpName(Value* V) {
1002 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end())
1003 return getCppName(V);
1005 // See if its alread in the map of forward references, if so just return the
1006 // name we already set up for it
1007 ForwardRefMap::const_iterator I = ForwardRefs.find(V);
1008 if (I != ForwardRefs.end())
1011 // This is a new forward reference. Generate a unique name for it
1012 std::string result(std::string("fwdref_") + utostr(uniqueNum++));
1014 // Yes, this is a hack. An Argument is the smallest instantiable value that
1015 // we can make as a placeholder for the real value. We'll replace these
1016 // Argument instances later.
1017 Out << "Argument* " << result << " = new Argument("
1018 << getCppName(V->getType()) << ");";
1020 ForwardRefs[V] = result;
1024 // printInstruction - This member is called for each Instruction in a function.
1026 CppWriter::printInstruction(const Instruction *I, const std::string& bbname) {
1027 std::string iName(getCppName(I));
1029 // Before we emit this instruction, we need to take care of generating any
1030 // forward references. So, we get the names of all the operands in advance
1031 std::string* opNames = new std::string[I->getNumOperands()];
1032 for (unsigned i = 0; i < I->getNumOperands(); i++) {
1033 opNames[i] = getOpName(I->getOperand(i));
1036 switch (I->getOpcode()) {
1037 case Instruction::Ret: {
1038 const ReturnInst* ret = cast<ReturnInst>(I);
1039 Out << "new ReturnInst("
1040 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");";
1043 case Instruction::Br: {
1044 const BranchInst* br = cast<BranchInst>(I);
1045 Out << "new BranchInst(" ;
1046 if (br->getNumOperands() == 3 ) {
1047 Out << opNames[0] << ", "
1048 << opNames[1] << ", "
1049 << opNames[2] << ", ";
1051 } else if (br->getNumOperands() == 1) {
1052 Out << opNames[0] << ", ";
1054 error("Branch with 2 operands?");
1056 Out << bbname << ");";
1059 case Instruction::Switch: {
1060 const SwitchInst* sw = cast<SwitchInst>(I);
1061 Out << "SwitchInst* " << iName << " = new SwitchInst("
1062 << opNames[0] << ", "
1063 << opNames[1] << ", "
1064 << sw->getNumCases() << ", " << bbname << ");";
1066 for (unsigned i = 2; i < sw->getNumOperands(); i += 2 ) {
1067 Out << iName << "->addCase("
1068 << opNames[i] << ", "
1069 << opNames[i+1] << ");";
1074 case Instruction::Invoke: {
1075 const InvokeInst* inv = cast<InvokeInst>(I);
1076 Out << "std::vector<Value*> " << iName << "_params;";
1078 for (unsigned i = 3; i < inv->getNumOperands(); ++i) {
1079 Out << iName << "_params.push_back("
1080 << opNames[i] << ");";
1083 Out << "InvokeInst *" << iName << " = new InvokeInst("
1084 << opNames[0] << ", "
1085 << opNames[1] << ", "
1086 << opNames[2] << ", "
1087 << iName << "_params.begin(), " << iName << "_params.end(), \"";
1088 printEscapedString(inv->getName());
1089 Out << "\", " << bbname << ");";
1090 nl(Out) << iName << "->setCallingConv(";
1091 printCallingConv(inv->getCallingConv());
1095 case Instruction::Unwind: {
1096 Out << "new UnwindInst("
1100 case Instruction::Unreachable:{
1101 Out << "new UnreachableInst("
1105 case Instruction::Add:
1106 case Instruction::Sub:
1107 case Instruction::Mul:
1108 case Instruction::UDiv:
1109 case Instruction::SDiv:
1110 case Instruction::FDiv:
1111 case Instruction::URem:
1112 case Instruction::SRem:
1113 case Instruction::FRem:
1114 case Instruction::And:
1115 case Instruction::Or:
1116 case Instruction::Xor:
1117 case Instruction::Shl:
1118 case Instruction::LShr:
1119 case Instruction::AShr:{
1120 Out << "BinaryOperator* " << iName << " = BinaryOperator::create(";
1121 switch (I->getOpcode()) {
1122 case Instruction::Add: Out << "Instruction::Add"; break;
1123 case Instruction::Sub: Out << "Instruction::Sub"; break;
1124 case Instruction::Mul: Out << "Instruction::Mul"; break;
1125 case Instruction::UDiv:Out << "Instruction::UDiv"; break;
1126 case Instruction::SDiv:Out << "Instruction::SDiv"; break;
1127 case Instruction::FDiv:Out << "Instruction::FDiv"; break;
1128 case Instruction::URem:Out << "Instruction::URem"; break;
1129 case Instruction::SRem:Out << "Instruction::SRem"; break;
1130 case Instruction::FRem:Out << "Instruction::FRem"; break;
1131 case Instruction::And: Out << "Instruction::And"; break;
1132 case Instruction::Or: Out << "Instruction::Or"; break;
1133 case Instruction::Xor: Out << "Instruction::Xor"; break;
1134 case Instruction::Shl: Out << "Instruction::Shl"; break;
1135 case Instruction::LShr:Out << "Instruction::LShr"; break;
1136 case Instruction::AShr:Out << "Instruction::AShr"; break;
1137 default: Out << "Instruction::BadOpCode"; break;
1139 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1140 printEscapedString(I->getName());
1141 Out << "\", " << bbname << ");";
1144 case Instruction::FCmp: {
1145 Out << "FCmpInst* " << iName << " = new FCmpInst(";
1146 switch (cast<FCmpInst>(I)->getPredicate()) {
1147 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break;
1148 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break;
1149 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break;
1150 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break;
1151 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break;
1152 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break;
1153 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break;
1154 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break;
1155 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break;
1156 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break;
1157 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break;
1158 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break;
1159 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break;
1160 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break;
1161 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break;
1162 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break;
1163 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break;
1165 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1166 printEscapedString(I->getName());
1167 Out << "\", " << bbname << ");";
1170 case Instruction::ICmp: {
1171 Out << "ICmpInst* " << iName << " = new ICmpInst(";
1172 switch (cast<ICmpInst>(I)->getPredicate()) {
1173 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break;
1174 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break;
1175 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break;
1176 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break;
1177 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break;
1178 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break;
1179 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break;
1180 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break;
1181 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break;
1182 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break;
1183 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break;
1185 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1186 printEscapedString(I->getName());
1187 Out << "\", " << bbname << ");";
1190 case Instruction::Malloc: {
1191 const MallocInst* mallocI = cast<MallocInst>(I);
1192 Out << "MallocInst* " << iName << " = new MallocInst("
1193 << getCppName(mallocI->getAllocatedType()) << ", ";
1194 if (mallocI->isArrayAllocation())
1195 Out << opNames[0] << ", " ;
1197 printEscapedString(mallocI->getName());
1198 Out << "\", " << bbname << ");";
1199 if (mallocI->getAlignment())
1200 nl(Out) << iName << "->setAlignment("
1201 << mallocI->getAlignment() << ");";
1204 case Instruction::Free: {
1205 Out << "FreeInst* " << iName << " = new FreeInst("
1206 << getCppName(I->getOperand(0)) << ", " << bbname << ");";
1209 case Instruction::Alloca: {
1210 const AllocaInst* allocaI = cast<AllocaInst>(I);
1211 Out << "AllocaInst* " << iName << " = new AllocaInst("
1212 << getCppName(allocaI->getAllocatedType()) << ", ";
1213 if (allocaI->isArrayAllocation())
1214 Out << opNames[0] << ", ";
1216 printEscapedString(allocaI->getName());
1217 Out << "\", " << bbname << ");";
1218 if (allocaI->getAlignment())
1219 nl(Out) << iName << "->setAlignment("
1220 << allocaI->getAlignment() << ");";
1223 case Instruction::Load:{
1224 const LoadInst* load = cast<LoadInst>(I);
1225 Out << "LoadInst* " << iName << " = new LoadInst("
1226 << opNames[0] << ", \"";
1227 printEscapedString(load->getName());
1228 Out << "\", " << (load->isVolatile() ? "true" : "false" )
1229 << ", " << bbname << ");";
1232 case Instruction::Store: {
1233 const StoreInst* store = cast<StoreInst>(I);
1234 Out << "StoreInst* " << iName << " = new StoreInst("
1235 << opNames[0] << ", "
1236 << opNames[1] << ", "
1237 << (store->isVolatile() ? "true" : "false")
1238 << ", " << bbname << ");";
1241 case Instruction::GetElementPtr: {
1242 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I);
1243 if (gep->getNumOperands() <= 2) {
1244 Out << "GetElementPtrInst* " << iName << " = new GetElementPtrInst("
1246 if (gep->getNumOperands() == 2)
1247 Out << ", " << opNames[1];
1249 Out << "std::vector<Value*> " << iName << "_indices;";
1251 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) {
1252 Out << iName << "_indices.push_back("
1253 << opNames[i] << ");";
1256 Out << "Instruction* " << iName << " = new GetElementPtrInst("
1257 << opNames[0] << ", " << iName << "_indices.begin(), "
1258 << iName << "_indices.end()";
1261 printEscapedString(gep->getName());
1262 Out << "\", " << bbname << ");";
1265 case Instruction::PHI: {
1266 const PHINode* phi = cast<PHINode>(I);
1268 Out << "PHINode* " << iName << " = new PHINode("
1269 << getCppName(phi->getType()) << ", \"";
1270 printEscapedString(phi->getName());
1271 Out << "\", " << bbname << ");";
1272 nl(Out) << iName << "->reserveOperandSpace("
1273 << phi->getNumIncomingValues()
1276 for (unsigned i = 0; i < phi->getNumOperands(); i+=2) {
1277 Out << iName << "->addIncoming("
1278 << opNames[i] << ", " << opNames[i+1] << ");";
1283 case Instruction::Trunc:
1284 case Instruction::ZExt:
1285 case Instruction::SExt:
1286 case Instruction::FPTrunc:
1287 case Instruction::FPExt:
1288 case Instruction::FPToUI:
1289 case Instruction::FPToSI:
1290 case Instruction::UIToFP:
1291 case Instruction::SIToFP:
1292 case Instruction::PtrToInt:
1293 case Instruction::IntToPtr:
1294 case Instruction::BitCast: {
1295 const CastInst* cst = cast<CastInst>(I);
1296 Out << "CastInst* " << iName << " = new ";
1297 switch (I->getOpcode()) {
1298 case Instruction::Trunc: Out << "TruncInst"; break;
1299 case Instruction::ZExt: Out << "ZExtInst"; break;
1300 case Instruction::SExt: Out << "SExtInst"; break;
1301 case Instruction::FPTrunc: Out << "FPTruncInst"; break;
1302 case Instruction::FPExt: Out << "FPExtInst"; break;
1303 case Instruction::FPToUI: Out << "FPToUIInst"; break;
1304 case Instruction::FPToSI: Out << "FPToSIInst"; break;
1305 case Instruction::UIToFP: Out << "UIToFPInst"; break;
1306 case Instruction::SIToFP: Out << "SIToFPInst"; break;
1307 case Instruction::PtrToInt: Out << "PtrToIntInst"; break;
1308 case Instruction::IntToPtr: Out << "IntToPtrInst"; break;
1309 case Instruction::BitCast: Out << "BitCastInst"; break;
1310 default: assert(!"Unreachable"); break;
1312 Out << "(" << opNames[0] << ", "
1313 << getCppName(cst->getType()) << ", \"";
1314 printEscapedString(cst->getName());
1315 Out << "\", " << bbname << ");";
1318 case Instruction::Call:{
1319 const CallInst* call = cast<CallInst>(I);
1320 if (InlineAsm* ila = dyn_cast<InlineAsm>(call->getOperand(0))) {
1321 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get("
1322 << getCppName(ila->getFunctionType()) << ", \""
1323 << ila->getAsmString() << "\", \""
1324 << ila->getConstraintString() << "\","
1325 << (ila->hasSideEffects() ? "true" : "false") << ");";
1328 if (call->getNumOperands() > 2) {
1329 Out << "std::vector<Value*> " << iName << "_params;";
1331 for (unsigned i = 1; i < call->getNumOperands(); ++i) {
1332 Out << iName << "_params.push_back(" << opNames[i] << ");";
1335 Out << "CallInst* " << iName << " = new CallInst("
1336 << opNames[0] << ", " << iName << "_params.begin(), "
1337 << iName << "_params.end(), \"";
1338 } else if (call->getNumOperands() == 2) {
1339 Out << "CallInst* " << iName << " = new CallInst("
1340 << opNames[0] << ", " << opNames[1] << ", \"";
1342 Out << "CallInst* " << iName << " = new CallInst(" << opNames[0]
1345 printEscapedString(call->getName());
1346 Out << "\", " << bbname << ");";
1347 nl(Out) << iName << "->setCallingConv(";
1348 printCallingConv(call->getCallingConv());
1350 nl(Out) << iName << "->setTailCall("
1351 << (call->isTailCall() ? "true":"false");
1355 case Instruction::Select: {
1356 const SelectInst* sel = cast<SelectInst>(I);
1357 Out << "SelectInst* " << getCppName(sel) << " = new SelectInst(";
1358 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1359 printEscapedString(sel->getName());
1360 Out << "\", " << bbname << ");";
1363 case Instruction::UserOp1:
1365 case Instruction::UserOp2: {
1366 /// FIXME: What should be done here?
1369 case Instruction::VAArg: {
1370 const VAArgInst* va = cast<VAArgInst>(I);
1371 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst("
1372 << opNames[0] << ", " << getCppName(va->getType()) << ", \"";
1373 printEscapedString(va->getName());
1374 Out << "\", " << bbname << ");";
1377 case Instruction::ExtractElement: {
1378 const ExtractElementInst* eei = cast<ExtractElementInst>(I);
1379 Out << "ExtractElementInst* " << getCppName(eei)
1380 << " = new ExtractElementInst(" << opNames[0]
1381 << ", " << opNames[1] << ", \"";
1382 printEscapedString(eei->getName());
1383 Out << "\", " << bbname << ");";
1386 case Instruction::InsertElement: {
1387 const InsertElementInst* iei = cast<InsertElementInst>(I);
1388 Out << "InsertElementInst* " << getCppName(iei)
1389 << " = new InsertElementInst(" << opNames[0]
1390 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1391 printEscapedString(iei->getName());
1392 Out << "\", " << bbname << ");";
1395 case Instruction::ShuffleVector: {
1396 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I);
1397 Out << "ShuffleVectorInst* " << getCppName(svi)
1398 << " = new ShuffleVectorInst(" << opNames[0]
1399 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1400 printEscapedString(svi->getName());
1401 Out << "\", " << bbname << ");";
1405 DefinedValues.insert(I);
1410 // Print out the types, constants and declarations needed by one function
1411 void CppWriter::printFunctionUses(const Function* F) {
1413 nl(Out) << "// Type Definitions"; nl(Out);
1415 // Print the function's return type
1416 printType(F->getReturnType());
1418 // Print the function's function type
1419 printType(F->getFunctionType());
1421 // Print the types of each of the function's arguments
1422 for(Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1424 printType(AI->getType());
1428 // Print type definitions for every type referenced by an instruction and
1429 // make a note of any global values or constants that are referenced
1430 SmallPtrSet<GlobalValue*,64> gvs;
1431 SmallPtrSet<Constant*,64> consts;
1432 for (Function::const_iterator BB = F->begin(), BE = F->end(); BB != BE; ++BB){
1433 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
1435 // Print the type of the instruction itself
1436 printType(I->getType());
1438 // Print the type of each of the instruction's operands
1439 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
1440 Value* operand = I->getOperand(i);
1441 printType(operand->getType());
1443 // If the operand references a GVal or Constant, make a note of it
1444 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
1446 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
1447 if (GVar->hasInitializer())
1448 consts.insert(GVar->getInitializer());
1449 } else if (Constant* C = dyn_cast<Constant>(operand))
1455 // Print the function declarations for any functions encountered
1456 nl(Out) << "// Function Declarations"; nl(Out);
1457 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1459 if (Function* Fun = dyn_cast<Function>(*I)) {
1460 if (!is_inline || Fun != F)
1461 printFunctionHead(Fun);
1465 // Print the global variable declarations for any variables encountered
1466 nl(Out) << "// Global Variable Declarations"; nl(Out);
1467 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1469 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I))
1470 printVariableHead(F);
1473 // Print the constants found
1474 nl(Out) << "// Constant Definitions"; nl(Out);
1475 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(), E = consts.end();
1480 // Process the global variables definitions now that all the constants have
1481 // been emitted. These definitions just couple the gvars with their constant
1483 nl(Out) << "// Global Variable Definitions"; nl(Out);
1484 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1486 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I))
1487 printVariableBody(GV);
1491 void CppWriter::printFunctionHead(const Function* F) {
1492 nl(Out) << "Function* " << getCppName(F);
1494 Out << " = mod->getFunction(\"";
1495 printEscapedString(F->getName());
1496 Out << "\", " << getCppName(F->getFunctionType()) << ");";
1497 nl(Out) << "if (!" << getCppName(F) << ") {";
1498 nl(Out) << getCppName(F);
1500 Out<< " = new Function(";
1501 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ",";
1502 nl(Out) << "/*Linkage=*/";
1503 printLinkageType(F->getLinkage());
1505 nl(Out) << "/*Name=*/\"";
1506 printEscapedString(F->getName());
1507 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : "");
1510 Out << "->setCallingConv(";
1511 printCallingConv(F->getCallingConv());
1514 if (F->hasSection()) {
1516 Out << "->setSection(\"" << F->getSection() << "\");";
1519 if (F->getAlignment()) {
1521 Out << "->setAlignment(" << F->getAlignment() << ");";
1530 void CppWriter::printFunctionBody(const Function *F) {
1531 if (F->isDeclaration())
1532 return; // external functions have no bodies.
1534 // Clear the DefinedValues and ForwardRefs maps because we can't have
1535 // cross-function forward refs
1536 ForwardRefs.clear();
1537 DefinedValues.clear();
1539 // Create all the argument values
1541 if (!F->arg_empty()) {
1542 Out << "Function::arg_iterator args = " << getCppName(F)
1543 << "->arg_begin();";
1546 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1548 Out << "Value* " << getCppName(AI) << " = args++;";
1550 if (AI->hasName()) {
1551 Out << getCppName(AI) << "->setName(\"" << AI->getName() << "\");";
1557 // Create all the basic blocks
1559 for (Function::const_iterator BI = F->begin(), BE = F->end();
1561 std::string bbname(getCppName(BI));
1562 Out << "BasicBlock* " << bbname << " = new BasicBlock(\"";
1564 printEscapedString(BI->getName());
1565 Out << "\"," << getCppName(BI->getParent()) << ",0);";
1569 // Output all of its basic blocks... for the function
1570 for (Function::const_iterator BI = F->begin(), BE = F->end();
1572 std::string bbname(getCppName(BI));
1573 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")";
1576 // Output all of the instructions in the basic block...
1577 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end();
1579 printInstruction(I,bbname);
1583 // Loop over the ForwardRefs and resolve them now that all instructions
1585 if (!ForwardRefs.empty()) {
1586 nl(Out) << "// Resolve Forward References";
1590 while (!ForwardRefs.empty()) {
1591 ForwardRefMap::iterator I = ForwardRefs.begin();
1592 Out << I->second << "->replaceAllUsesWith("
1593 << getCppName(I->first) << "); delete " << I->second << ";";
1595 ForwardRefs.erase(I);
1599 void CppWriter::printInline(const std::string& fname, const std::string& func) {
1600 const Function* F = TheModule->getFunction(func);
1602 error(std::string("Function '") + func + "' not found in input module");
1605 if (F->isDeclaration()) {
1606 error(std::string("Function '") + func + "' is external!");
1609 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *"
1611 unsigned arg_count = 1;
1612 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1614 Out << ", Value* arg_" << arg_count;
1619 printFunctionUses(F);
1620 printFunctionBody(F);
1622 Out << "return " << getCppName(F->begin()) << ";";
1627 void CppWriter::printModuleBody() {
1628 // Print out all the type definitions
1629 nl(Out) << "// Type Definitions"; nl(Out);
1630 printTypes(TheModule);
1632 // Functions can call each other and global variables can reference them so
1633 // define all the functions first before emitting their function bodies.
1634 nl(Out) << "// Function Declarations"; nl(Out);
1635 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1637 printFunctionHead(I);
1639 // Process the global variables declarations. We can't initialze them until
1640 // after the constants are printed so just print a header for each global
1641 nl(Out) << "// Global Variable Declarations\n"; nl(Out);
1642 for (Module::const_global_iterator I = TheModule->global_begin(),
1643 E = TheModule->global_end(); I != E; ++I) {
1644 printVariableHead(I);
1647 // Print out all the constants definitions. Constants don't recurse except
1648 // through GlobalValues. All GlobalValues have been declared at this point
1649 // so we can proceed to generate the constants.
1650 nl(Out) << "// Constant Definitions"; nl(Out);
1651 printConstants(TheModule);
1653 // Process the global variables definitions now that all the constants have
1654 // been emitted. These definitions just couple the gvars with their constant
1656 nl(Out) << "// Global Variable Definitions"; nl(Out);
1657 for (Module::const_global_iterator I = TheModule->global_begin(),
1658 E = TheModule->global_end(); I != E; ++I) {
1659 printVariableBody(I);
1662 // Finally, we can safely put out all of the function bodies.
1663 nl(Out) << "// Function Definitions"; nl(Out);
1664 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1666 if (!I->isDeclaration()) {
1667 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I)
1671 printFunctionBody(I);
1678 void CppWriter::printProgram(
1679 const std::string& fname,
1680 const std::string& mName
1682 Out << "#include <llvm/Module.h>\n";
1683 Out << "#include <llvm/DerivedTypes.h>\n";
1684 Out << "#include <llvm/Constants.h>\n";
1685 Out << "#include <llvm/GlobalVariable.h>\n";
1686 Out << "#include <llvm/Function.h>\n";
1687 Out << "#include <llvm/CallingConv.h>\n";
1688 Out << "#include <llvm/BasicBlock.h>\n";
1689 Out << "#include <llvm/Instructions.h>\n";
1690 Out << "#include <llvm/InlineAsm.h>\n";
1691 Out << "#include <llvm/ParameterAttributes.h>\n";
1692 Out << "#include <llvm/Support/MathExtras.h>\n";
1693 Out << "#include <llvm/Pass.h>\n";
1694 Out << "#include <llvm/PassManager.h>\n";
1695 Out << "#include <llvm/Analysis/Verifier.h>\n";
1696 Out << "#include <llvm/Assembly/PrintModulePass.h>\n";
1697 Out << "#include <algorithm>\n";
1698 Out << "#include <iostream>\n\n";
1699 Out << "using namespace llvm;\n\n";
1700 Out << "Module* " << fname << "();\n\n";
1701 Out << "int main(int argc, char**argv) {\n";
1702 Out << " Module* Mod = " << fname << "();\n";
1703 Out << " verifyModule(*Mod, PrintMessageAction);\n";
1704 Out << " std::cerr.flush();\n";
1705 Out << " std::cout.flush();\n";
1706 Out << " PassManager PM;\n";
1707 Out << " PM.add(new PrintModulePass(&llvm::cout));\n";
1708 Out << " PM.run(*Mod);\n";
1709 Out << " return 0;\n";
1711 printModule(fname,mName);
1714 void CppWriter::printModule(
1715 const std::string& fname,
1716 const std::string& mName
1718 nl(Out) << "Module* " << fname << "() {";
1719 nl(Out,1) << "// Module Construction";
1720 nl(Out) << "Module* mod = new Module(\"" << mName << "\");";
1721 if (!TheModule->getTargetTriple().empty()) {
1722 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");";
1724 if (!TheModule->getTargetTriple().empty()) {
1725 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple()
1729 if (!TheModule->getModuleInlineAsm().empty()) {
1730 nl(Out) << "mod->setModuleInlineAsm(\"";
1731 printEscapedString(TheModule->getModuleInlineAsm());
1736 // Loop over the dependent libraries and emit them.
1737 Module::lib_iterator LI = TheModule->lib_begin();
1738 Module::lib_iterator LE = TheModule->lib_end();
1740 Out << "mod->addLibrary(\"" << *LI << "\");";
1745 nl(Out) << "return mod;";
1750 void CppWriter::printContents(
1751 const std::string& fname, // Name of generated function
1752 const std::string& mName // Name of module generated module
1754 Out << "\nModule* " << fname << "(Module *mod) {\n";
1755 Out << "\nmod->setModuleIdentifier(\"" << mName << "\");\n";
1757 Out << "\nreturn mod;\n";
1761 void CppWriter::printFunction(
1762 const std::string& fname, // Name of generated function
1763 const std::string& funcName // Name of function to generate
1765 const Function* F = TheModule->getFunction(funcName);
1767 error(std::string("Function '") + funcName + "' not found in input module");
1770 Out << "\nFunction* " << fname << "(Module *mod) {\n";
1771 printFunctionUses(F);
1772 printFunctionHead(F);
1773 printFunctionBody(F);
1774 Out << "return " << getCppName(F) << ";\n";
1778 void CppWriter::printVariable(
1779 const std::string& fname, /// Name of generated function
1780 const std::string& varName // Name of variable to generate
1782 const GlobalVariable* GV = TheModule->getNamedGlobal(varName);
1785 error(std::string("Variable '") + varName + "' not found in input module");
1788 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n";
1789 printVariableUses(GV);
1790 printVariableHead(GV);
1791 printVariableBody(GV);
1792 Out << "return " << getCppName(GV) << ";\n";
1796 void CppWriter::printType(
1797 const std::string& fname, /// Name of generated function
1798 const std::string& typeName // Name of type to generate
1800 const Type* Ty = TheModule->getTypeByName(typeName);
1802 error(std::string("Type '") + typeName + "' not found in input module");
1805 Out << "\nType* " << fname << "(Module *mod) {\n";
1807 Out << "return " << getCppName(Ty) << ";\n";
1811 } // end anonymous llvm
1815 void WriteModuleToCppFile(Module* mod, std::ostream& o) {
1816 // Initialize a CppWriter for us to use
1817 CppWriter W(o, mod);
1820 o << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n";
1822 // Get the name of the function we're supposed to generate
1823 std::string fname = FuncName.getValue();
1825 // Get the name of the thing we are to generate
1826 std::string tgtname = NameToGenerate.getValue();
1827 if (GenerationType == GenModule ||
1828 GenerationType == GenContents ||
1829 GenerationType == GenProgram) {
1830 if (tgtname == "!bad!") {
1831 if (mod->getModuleIdentifier() == "-")
1832 tgtname = "<stdin>";
1834 tgtname = mod->getModuleIdentifier();
1836 } else if (tgtname == "!bad!") {
1837 W.error("You must use the -for option with -gen-{function,variable,type}");
1840 switch (WhatToGenerate(GenerationType)) {
1843 fname = "makeLLVMModule";
1844 W.printProgram(fname,tgtname);
1848 fname = "makeLLVMModule";
1849 W.printModule(fname,tgtname);
1853 fname = "makeLLVMModuleContents";
1854 W.printContents(fname,tgtname);
1858 fname = "makeLLVMFunction";
1859 W.printFunction(fname,tgtname);
1863 fname = "makeLLVMInline";
1864 W.printInline(fname,tgtname);
1868 fname = "makeLLVMVariable";
1869 W.printVariable(fname,tgtname);
1873 fname = "makeLLVMType";
1874 W.printType(fname,tgtname);
1877 W.error("Invalid generation option");