1 //===-- CPPBackend.cpp - Library for converting LLVM code to C++ code -----===//
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 "CPPTargetMachine.h"
16 #include "llvm/CallingConv.h"
17 #include "llvm/Constants.h"
18 #include "llvm/DerivedTypes.h"
19 #include "llvm/InlineAsm.h"
20 #include "llvm/Instruction.h"
21 #include "llvm/Instructions.h"
22 #include "llvm/Module.h"
23 #include "llvm/Pass.h"
24 #include "llvm/PassManager.h"
25 #include "llvm/MC/MCAsmInfo.h"
26 #include "llvm/MC/MCInstrInfo.h"
27 #include "llvm/MC/MCSubtargetInfo.h"
28 #include "llvm/ADT/SmallPtrSet.h"
29 #include "llvm/Support/CommandLine.h"
30 #include "llvm/Support/ErrorHandling.h"
31 #include "llvm/Support/FormattedStream.h"
32 #include "llvm/Target/TargetRegistry.h"
33 #include "llvm/ADT/StringExtras.h"
34 #include "llvm/Config/config.h"
40 static cl::opt<std::string>
41 FuncName("cppfname", cl::desc("Specify the name of the generated function"),
42 cl::value_desc("function name"));
55 static cl::opt<WhatToGenerate> GenerationType("cppgen", cl::Optional,
56 cl::desc("Choose what kind of output to generate"),
59 clEnumValN(GenProgram, "program", "Generate a complete program"),
60 clEnumValN(GenModule, "module", "Generate a module definition"),
61 clEnumValN(GenContents, "contents", "Generate contents of a module"),
62 clEnumValN(GenFunction, "function", "Generate a function definition"),
63 clEnumValN(GenFunctions,"functions", "Generate all function definitions"),
64 clEnumValN(GenInline, "inline", "Generate an inline function"),
65 clEnumValN(GenVariable, "variable", "Generate a variable definition"),
66 clEnumValN(GenType, "type", "Generate a type definition"),
71 static cl::opt<std::string> NameToGenerate("cppfor", cl::Optional,
72 cl::desc("Specify the name of the thing to generate"),
75 extern "C" void LLVMInitializeCppBackendTarget() {
76 // Register the target.
77 RegisterTargetMachine<CPPTargetMachine> X(TheCppBackendTarget);
81 typedef std::vector<Type*> TypeList;
82 typedef std::map<Type*,std::string> TypeMap;
83 typedef std::map<const Value*,std::string> ValueMap;
84 typedef std::set<std::string> NameSet;
85 typedef std::set<Type*> TypeSet;
86 typedef std::set<const Value*> ValueSet;
87 typedef std::map<const Value*,std::string> ForwardRefMap;
89 /// CppWriter - This class is the main chunk of code that converts an LLVM
90 /// module to a C++ translation unit.
91 class CppWriter : public ModulePass {
92 formatted_raw_ostream &Out;
93 const Module *TheModule;
99 ValueSet DefinedValues;
100 ForwardRefMap ForwardRefs;
102 unsigned indent_level;
106 explicit CppWriter(formatted_raw_ostream &o) :
107 ModulePass(ID), Out(o), uniqueNum(0), is_inline(false), indent_level(0){}
109 virtual const char *getPassName() const { return "C++ backend"; }
111 bool runOnModule(Module &M);
113 void printProgram(const std::string& fname, const std::string& modName );
114 void printModule(const std::string& fname, const std::string& modName );
115 void printContents(const std::string& fname, const std::string& modName );
116 void printFunction(const std::string& fname, const std::string& funcName );
117 void printFunctions();
118 void printInline(const std::string& fname, const std::string& funcName );
119 void printVariable(const std::string& fname, const std::string& varName );
120 void printType(const std::string& fname, const std::string& typeName );
122 void error(const std::string& msg);
125 formatted_raw_ostream& nl(formatted_raw_ostream &Out, int delta = 0);
126 inline void in() { indent_level++; }
127 inline void out() { if (indent_level >0) indent_level--; }
130 void printLinkageType(GlobalValue::LinkageTypes LT);
131 void printVisibilityType(GlobalValue::VisibilityTypes VisTypes);
132 void printCallingConv(CallingConv::ID cc);
133 void printEscapedString(const std::string& str);
134 void printCFP(const ConstantFP* CFP);
136 std::string getCppName(Type* val);
137 inline void printCppName(Type* val);
139 std::string getCppName(const Value* val);
140 inline void printCppName(const Value* val);
142 void printAttributes(const AttrListPtr &PAL, const std::string &name);
143 void printType(Type* Ty);
144 void printTypes(const Module* M);
146 void printConstant(const Constant *CPV);
147 void printConstants(const Module* M);
149 void printVariableUses(const GlobalVariable *GV);
150 void printVariableHead(const GlobalVariable *GV);
151 void printVariableBody(const GlobalVariable *GV);
153 void printFunctionUses(const Function *F);
154 void printFunctionHead(const Function *F);
155 void printFunctionBody(const Function *F);
156 void printInstruction(const Instruction *I, const std::string& bbname);
157 std::string getOpName(Value*);
159 void printModuleBody();
161 } // end anonymous namespace.
163 formatted_raw_ostream &CppWriter::nl(formatted_raw_ostream &Out, int delta) {
165 if (delta >= 0 || indent_level >= unsigned(-delta))
166 indent_level += delta;
167 Out.indent(indent_level);
171 static inline void sanitize(std::string &str) {
172 for (size_t i = 0; i < str.length(); ++i)
173 if (!isalnum(str[i]) && str[i] != '_')
177 static std::string getTypePrefix(Type *Ty) {
178 switch (Ty->getTypeID()) {
179 case Type::VoidTyID: return "void_";
180 case Type::IntegerTyID:
181 return "int" + utostr(cast<IntegerType>(Ty)->getBitWidth()) + "_";
182 case Type::FloatTyID: return "float_";
183 case Type::DoubleTyID: return "double_";
184 case Type::LabelTyID: return "label_";
185 case Type::FunctionTyID: return "func_";
186 case Type::StructTyID: return "struct_";
187 case Type::ArrayTyID: return "array_";
188 case Type::PointerTyID: return "ptr_";
189 case Type::VectorTyID: return "packed_";
190 default: return "other_";
195 void CppWriter::error(const std::string& msg) {
196 report_fatal_error(msg);
199 // printCFP - Print a floating point constant .. very carefully :)
200 // This makes sure that conversion to/from floating yields the same binary
201 // result so that we don't lose precision.
202 void CppWriter::printCFP(const ConstantFP *CFP) {
204 APFloat APF = APFloat(CFP->getValueAPF()); // copy
205 if (CFP->getType() == Type::getFloatTy(CFP->getContext()))
206 APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored);
207 Out << "ConstantFP::get(mod->getContext(), ";
211 sprintf(Buffer, "%A", APF.convertToDouble());
212 if ((!strncmp(Buffer, "0x", 2) ||
213 !strncmp(Buffer, "-0x", 3) ||
214 !strncmp(Buffer, "+0x", 3)) &&
215 APF.bitwiseIsEqual(APFloat(atof(Buffer)))) {
216 if (CFP->getType() == Type::getDoubleTy(CFP->getContext()))
217 Out << "BitsToDouble(" << Buffer << ")";
219 Out << "BitsToFloat((float)" << Buffer << ")";
223 std::string StrVal = ftostr(CFP->getValueAPF());
225 while (StrVal[0] == ' ')
226 StrVal.erase(StrVal.begin());
228 // Check to make sure that the stringized number is not some string like
229 // "Inf" or NaN. Check that the string matches the "[-+]?[0-9]" regex.
230 if (((StrVal[0] >= '0' && StrVal[0] <= '9') ||
231 ((StrVal[0] == '-' || StrVal[0] == '+') &&
232 (StrVal[1] >= '0' && StrVal[1] <= '9'))) &&
233 (CFP->isExactlyValue(atof(StrVal.c_str())))) {
234 if (CFP->getType() == Type::getDoubleTy(CFP->getContext()))
237 Out << StrVal << "f";
238 } else if (CFP->getType() == Type::getDoubleTy(CFP->getContext()))
239 Out << "BitsToDouble(0x"
240 << utohexstr(CFP->getValueAPF().bitcastToAPInt().getZExtValue())
241 << "ULL) /* " << StrVal << " */";
243 Out << "BitsToFloat(0x"
244 << utohexstr((uint32_t)CFP->getValueAPF().
245 bitcastToAPInt().getZExtValue())
246 << "U) /* " << StrVal << " */";
254 void CppWriter::printCallingConv(CallingConv::ID cc){
255 // Print the calling convention.
257 case CallingConv::C: Out << "CallingConv::C"; break;
258 case CallingConv::Fast: Out << "CallingConv::Fast"; break;
259 case CallingConv::Cold: Out << "CallingConv::Cold"; break;
260 case CallingConv::FirstTargetCC: Out << "CallingConv::FirstTargetCC"; break;
261 default: Out << cc; break;
265 void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
267 case GlobalValue::InternalLinkage:
268 Out << "GlobalValue::InternalLinkage"; break;
269 case GlobalValue::PrivateLinkage:
270 Out << "GlobalValue::PrivateLinkage"; break;
271 case GlobalValue::LinkerPrivateLinkage:
272 Out << "GlobalValue::LinkerPrivateLinkage"; break;
273 case GlobalValue::LinkerPrivateWeakLinkage:
274 Out << "GlobalValue::LinkerPrivateWeakLinkage"; break;
275 case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
276 Out << "GlobalValue::LinkerPrivateWeakDefAutoLinkage"; break;
277 case GlobalValue::AvailableExternallyLinkage:
278 Out << "GlobalValue::AvailableExternallyLinkage "; break;
279 case GlobalValue::LinkOnceAnyLinkage:
280 Out << "GlobalValue::LinkOnceAnyLinkage "; break;
281 case GlobalValue::LinkOnceODRLinkage:
282 Out << "GlobalValue::LinkOnceODRLinkage "; break;
283 case GlobalValue::WeakAnyLinkage:
284 Out << "GlobalValue::WeakAnyLinkage"; break;
285 case GlobalValue::WeakODRLinkage:
286 Out << "GlobalValue::WeakODRLinkage"; break;
287 case GlobalValue::AppendingLinkage:
288 Out << "GlobalValue::AppendingLinkage"; break;
289 case GlobalValue::ExternalLinkage:
290 Out << "GlobalValue::ExternalLinkage"; break;
291 case GlobalValue::DLLImportLinkage:
292 Out << "GlobalValue::DLLImportLinkage"; break;
293 case GlobalValue::DLLExportLinkage:
294 Out << "GlobalValue::DLLExportLinkage"; break;
295 case GlobalValue::ExternalWeakLinkage:
296 Out << "GlobalValue::ExternalWeakLinkage"; break;
297 case GlobalValue::CommonLinkage:
298 Out << "GlobalValue::CommonLinkage"; break;
302 void CppWriter::printVisibilityType(GlobalValue::VisibilityTypes VisType) {
304 default: llvm_unreachable("Unknown GVar visibility");
305 case GlobalValue::DefaultVisibility:
306 Out << "GlobalValue::DefaultVisibility";
308 case GlobalValue::HiddenVisibility:
309 Out << "GlobalValue::HiddenVisibility";
311 case GlobalValue::ProtectedVisibility:
312 Out << "GlobalValue::ProtectedVisibility";
317 // printEscapedString - Print each character of the specified string, escaping
318 // it if it is not printable or if it is an escape char.
319 void CppWriter::printEscapedString(const std::string &Str) {
320 for (unsigned i = 0, e = Str.size(); i != e; ++i) {
321 unsigned char C = Str[i];
322 if (isprint(C) && C != '"' && C != '\\') {
326 << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
327 << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
332 std::string CppWriter::getCppName(Type* Ty) {
333 // First, handle the primitive types .. easy
334 if (Ty->isPrimitiveType() || Ty->isIntegerTy()) {
335 switch (Ty->getTypeID()) {
336 case Type::VoidTyID: return "Type::getVoidTy(mod->getContext())";
337 case Type::IntegerTyID: {
338 unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
339 return "IntegerType::get(mod->getContext(), " + utostr(BitWidth) + ")";
341 case Type::X86_FP80TyID: return "Type::getX86_FP80Ty(mod->getContext())";
342 case Type::FloatTyID: return "Type::getFloatTy(mod->getContext())";
343 case Type::DoubleTyID: return "Type::getDoubleTy(mod->getContext())";
344 case Type::LabelTyID: return "Type::getLabelTy(mod->getContext())";
345 case Type::X86_MMXTyID: return "Type::getX86_MMXTy(mod->getContext())";
347 error("Invalid primitive type");
350 // shouldn't be returned, but make it sensible
351 return "Type::getVoidTy(mod->getContext())";
354 // Now, see if we've seen the type before and return that
355 TypeMap::iterator I = TypeNames.find(Ty);
356 if (I != TypeNames.end())
359 // Okay, let's build a new name for this type. Start with a prefix
360 const char* prefix = 0;
361 switch (Ty->getTypeID()) {
362 case Type::FunctionTyID: prefix = "FuncTy_"; break;
363 case Type::StructTyID: prefix = "StructTy_"; break;
364 case Type::ArrayTyID: prefix = "ArrayTy_"; break;
365 case Type::PointerTyID: prefix = "PointerTy_"; break;
366 case Type::VectorTyID: prefix = "VectorTy_"; break;
367 default: prefix = "OtherTy_"; break; // prevent breakage
370 // See if the type has a name in the symboltable and build accordingly
372 if (StructType *STy = dyn_cast<StructType>(Ty))
374 name = STy->getName();
377 name = utostr(uniqueNum++);
379 name = std::string(prefix) + name;
383 return TypeNames[Ty] = name;
386 void CppWriter::printCppName(Type* Ty) {
387 printEscapedString(getCppName(Ty));
390 std::string CppWriter::getCppName(const Value* val) {
392 ValueMap::iterator I = ValueNames.find(val);
393 if (I != ValueNames.end() && I->first == val)
396 if (const GlobalVariable* GV = dyn_cast<GlobalVariable>(val)) {
397 name = std::string("gvar_") +
398 getTypePrefix(GV->getType()->getElementType());
399 } else if (isa<Function>(val)) {
400 name = std::string("func_");
401 } else if (const Constant* C = dyn_cast<Constant>(val)) {
402 name = std::string("const_") + getTypePrefix(C->getType());
403 } else if (const Argument* Arg = dyn_cast<Argument>(val)) {
405 unsigned argNum = std::distance(Arg->getParent()->arg_begin(),
406 Function::const_arg_iterator(Arg)) + 1;
407 name = std::string("arg_") + utostr(argNum);
408 NameSet::iterator NI = UsedNames.find(name);
409 if (NI != UsedNames.end())
410 name += std::string("_") + utostr(uniqueNum++);
411 UsedNames.insert(name);
412 return ValueNames[val] = name;
414 name = getTypePrefix(val->getType());
417 name = getTypePrefix(val->getType());
420 name += val->getName();
422 name += utostr(uniqueNum++);
424 NameSet::iterator NI = UsedNames.find(name);
425 if (NI != UsedNames.end())
426 name += std::string("_") + utostr(uniqueNum++);
427 UsedNames.insert(name);
428 return ValueNames[val] = name;
431 void CppWriter::printCppName(const Value* val) {
432 printEscapedString(getCppName(val));
435 void CppWriter::printAttributes(const AttrListPtr &PAL,
436 const std::string &name) {
437 Out << "AttrListPtr " << name << "_PAL;";
439 if (!PAL.isEmpty()) {
440 Out << '{'; in(); nl(Out);
441 Out << "SmallVector<AttributeWithIndex, 4> Attrs;"; nl(Out);
442 Out << "AttributeWithIndex PAWI;"; nl(Out);
443 for (unsigned i = 0; i < PAL.getNumSlots(); ++i) {
444 unsigned index = PAL.getSlot(i).Index;
445 Attributes attrs = PAL.getSlot(i).Attrs;
446 Out << "PAWI.Index = " << index << "U; PAWI.Attrs = 0 ";
447 #define HANDLE_ATTR(X) \
448 if (attrs & Attribute::X) \
449 Out << " | Attribute::" #X; \
450 attrs &= ~Attribute::X;
454 HANDLE_ATTR(NoReturn);
456 HANDLE_ATTR(StructRet);
457 HANDLE_ATTR(NoUnwind);
458 HANDLE_ATTR(NoAlias);
461 HANDLE_ATTR(ReadNone);
462 HANDLE_ATTR(ReadOnly);
463 HANDLE_ATTR(NoInline);
464 HANDLE_ATTR(AlwaysInline);
465 HANDLE_ATTR(OptimizeForSize);
466 HANDLE_ATTR(StackProtect);
467 HANDLE_ATTR(StackProtectReq);
468 HANDLE_ATTR(NoCapture);
469 HANDLE_ATTR(NoRedZone);
470 HANDLE_ATTR(NoImplicitFloat);
472 HANDLE_ATTR(InlineHint);
474 if (attrs & Attribute::StackAlignment)
475 Out << " | Attribute::constructStackAlignmentFromInt("
476 << Attribute::getStackAlignmentFromAttrs(attrs)
478 attrs &= ~Attribute::StackAlignment;
479 assert(attrs == 0 && "Unhandled attribute!");
482 Out << "Attrs.push_back(PAWI);";
485 Out << name << "_PAL = AttrListPtr::get(Attrs.begin(), Attrs.end());";
492 void CppWriter::printType(Type* Ty) {
493 // We don't print definitions for primitive types
494 if (Ty->isPrimitiveType() || Ty->isIntegerTy())
497 // If we already defined this type, we don't need to define it again.
498 if (DefinedTypes.find(Ty) != DefinedTypes.end())
501 // Everything below needs the name for the type so get it now.
502 std::string typeName(getCppName(Ty));
504 // Print the type definition
505 switch (Ty->getTypeID()) {
506 case Type::FunctionTyID: {
507 FunctionType* FT = cast<FunctionType>(Ty);
508 Out << "std::vector<Type*>" << typeName << "_args;";
510 FunctionType::param_iterator PI = FT->param_begin();
511 FunctionType::param_iterator PE = FT->param_end();
512 for (; PI != PE; ++PI) {
513 Type* argTy = static_cast<Type*>(*PI);
515 std::string argName(getCppName(argTy));
516 Out << typeName << "_args.push_back(" << argName;
520 printType(FT->getReturnType());
521 std::string retTypeName(getCppName(FT->getReturnType()));
522 Out << "FunctionType* " << typeName << " = FunctionType::get(";
523 in(); nl(Out) << "/*Result=*/" << retTypeName;
525 nl(Out) << "/*Params=*/" << typeName << "_args,";
526 nl(Out) << "/*isVarArg=*/" << (FT->isVarArg() ? "true" : "false") << ");";
531 case Type::StructTyID: {
532 StructType* ST = cast<StructType>(Ty);
533 if (!ST->isAnonymous()) {
534 Out << "StructType *" << typeName << " = ";
535 Out << "StructType::createNamed(mod->getContext(), \"";
536 printEscapedString(ST->getName());
539 // Indicate that this type is now defined.
540 DefinedTypes.insert(Ty);
543 Out << "std::vector<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 Type* fieldTy = static_cast<Type*>(*EI);
550 std::string fieldName(getCppName(fieldTy));
551 Out << typeName << "_fields.push_back(" << fieldName;
556 if (ST->isAnonymous()) {
557 Out << "StructType *" << typeName << " = ";
558 Out << "StructType::get(" << "mod->getContext(), ";
560 Out << typeName << "->setBody(";
563 Out << typeName << "_fields, /*isPacked=*/"
564 << (ST->isPacked() ? "true" : "false") << ");";
568 case Type::ArrayTyID: {
569 ArrayType* AT = cast<ArrayType>(Ty);
570 Type* ET = AT->getElementType();
572 if (DefinedTypes.find(Ty) == DefinedTypes.end()) {
573 std::string elemName(getCppName(ET));
574 Out << "ArrayType* " << typeName << " = ArrayType::get("
576 << ", " << utostr(AT->getNumElements()) << ");";
581 case Type::PointerTyID: {
582 PointerType* PT = cast<PointerType>(Ty);
583 Type* ET = PT->getElementType();
585 if (DefinedTypes.find(Ty) == DefinedTypes.end()) {
586 std::string elemName(getCppName(ET));
587 Out << "PointerType* " << typeName << " = PointerType::get("
589 << ", " << utostr(PT->getAddressSpace()) << ");";
594 case Type::VectorTyID: {
595 VectorType* PT = cast<VectorType>(Ty);
596 Type* ET = PT->getElementType();
598 if (DefinedTypes.find(Ty) == DefinedTypes.end()) {
599 std::string elemName(getCppName(ET));
600 Out << "VectorType* " << typeName << " = VectorType::get("
602 << ", " << utostr(PT->getNumElements()) << ");";
608 error("Invalid TypeID");
611 // Indicate that this type is now defined.
612 DefinedTypes.insert(Ty);
614 // Finally, separate the type definition from other with a newline.
618 void CppWriter::printTypes(const Module* M) {
619 // Add all of the global variables to the value table.
620 for (Module::const_global_iterator I = TheModule->global_begin(),
621 E = TheModule->global_end(); I != E; ++I) {
622 if (I->hasInitializer())
623 printType(I->getInitializer()->getType());
624 printType(I->getType());
627 // Add all the functions to the table
628 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
630 printType(FI->getReturnType());
631 printType(FI->getFunctionType());
632 // Add all the function arguments
633 for (Function::const_arg_iterator AI = FI->arg_begin(),
634 AE = FI->arg_end(); AI != AE; ++AI) {
635 printType(AI->getType());
638 // Add all of the basic blocks and instructions
639 for (Function::const_iterator BB = FI->begin(),
640 E = FI->end(); BB != E; ++BB) {
641 printType(BB->getType());
642 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
644 printType(I->getType());
645 for (unsigned i = 0; i < I->getNumOperands(); ++i)
646 printType(I->getOperand(i)->getType());
653 // printConstant - Print out a constant pool entry...
654 void CppWriter::printConstant(const Constant *CV) {
655 // First, if the constant is actually a GlobalValue (variable or function)
656 // or its already in the constant list then we've printed it already and we
658 if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end())
661 std::string constName(getCppName(CV));
662 std::string typeName(getCppName(CV->getType()));
664 if (isa<GlobalValue>(CV)) {
665 // Skip variables and functions, we emit them elsewhere
669 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
670 std::string constValue = CI->getValue().toString(10, true);
671 Out << "ConstantInt* " << constName
672 << " = ConstantInt::get(mod->getContext(), APInt("
673 << cast<IntegerType>(CI->getType())->getBitWidth()
674 << ", StringRef(\"" << constValue << "\"), 10));";
675 } else if (isa<ConstantAggregateZero>(CV)) {
676 Out << "ConstantAggregateZero* " << constName
677 << " = ConstantAggregateZero::get(" << typeName << ");";
678 } else if (isa<ConstantPointerNull>(CV)) {
679 Out << "ConstantPointerNull* " << constName
680 << " = ConstantPointerNull::get(" << typeName << ");";
681 } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
682 Out << "ConstantFP* " << constName << " = ";
685 } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
686 if (CA->isString() &&
687 CA->getType()->getElementType() ==
688 Type::getInt8Ty(CA->getContext())) {
689 Out << "Constant* " << constName <<
690 " = ConstantArray::get(mod->getContext(), \"";
691 std::string tmp = CA->getAsString();
692 bool nullTerminate = false;
693 if (tmp[tmp.length()-1] == 0) {
694 tmp.erase(tmp.length()-1);
695 nullTerminate = true;
697 printEscapedString(tmp);
698 // Determine if we want null termination or not.
700 Out << "\", true"; // Indicate that the null terminator should be
703 Out << "\", false";// No null terminator
706 Out << "std::vector<Constant*> " << constName << "_elems;";
708 unsigned N = CA->getNumOperands();
709 for (unsigned i = 0; i < N; ++i) {
710 printConstant(CA->getOperand(i)); // recurse to print operands
711 Out << constName << "_elems.push_back("
712 << getCppName(CA->getOperand(i)) << ");";
715 Out << "Constant* " << constName << " = ConstantArray::get("
716 << typeName << ", " << constName << "_elems);";
718 } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
719 Out << "std::vector<Constant*> " << constName << "_fields;";
721 unsigned N = CS->getNumOperands();
722 for (unsigned i = 0; i < N; i++) {
723 printConstant(CS->getOperand(i));
724 Out << constName << "_fields.push_back("
725 << getCppName(CS->getOperand(i)) << ");";
728 Out << "Constant* " << constName << " = ConstantStruct::get("
729 << typeName << ", " << constName << "_fields);";
730 } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
731 Out << "std::vector<Constant*> " << constName << "_elems;";
733 unsigned N = CP->getNumOperands();
734 for (unsigned i = 0; i < N; ++i) {
735 printConstant(CP->getOperand(i));
736 Out << constName << "_elems.push_back("
737 << getCppName(CP->getOperand(i)) << ");";
740 Out << "Constant* " << constName << " = ConstantVector::get("
741 << typeName << ", " << constName << "_elems);";
742 } else if (isa<UndefValue>(CV)) {
743 Out << "UndefValue* " << constName << " = UndefValue::get("
745 } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
746 if (CE->getOpcode() == Instruction::GetElementPtr) {
747 Out << "std::vector<Constant*> " << constName << "_indices;";
749 printConstant(CE->getOperand(0));
750 for (unsigned i = 1; i < CE->getNumOperands(); ++i ) {
751 printConstant(CE->getOperand(i));
752 Out << constName << "_indices.push_back("
753 << getCppName(CE->getOperand(i)) << ");";
756 Out << "Constant* " << constName
757 << " = ConstantExpr::getGetElementPtr("
758 << getCppName(CE->getOperand(0)) << ", "
759 << constName << "_indices);";
760 } else if (CE->isCast()) {
761 printConstant(CE->getOperand(0));
762 Out << "Constant* " << constName << " = ConstantExpr::getCast(";
763 switch (CE->getOpcode()) {
764 default: llvm_unreachable("Invalid cast opcode");
765 case Instruction::Trunc: Out << "Instruction::Trunc"; break;
766 case Instruction::ZExt: Out << "Instruction::ZExt"; break;
767 case Instruction::SExt: Out << "Instruction::SExt"; break;
768 case Instruction::FPTrunc: Out << "Instruction::FPTrunc"; break;
769 case Instruction::FPExt: Out << "Instruction::FPExt"; break;
770 case Instruction::FPToUI: Out << "Instruction::FPToUI"; break;
771 case Instruction::FPToSI: Out << "Instruction::FPToSI"; break;
772 case Instruction::UIToFP: Out << "Instruction::UIToFP"; break;
773 case Instruction::SIToFP: Out << "Instruction::SIToFP"; break;
774 case Instruction::PtrToInt: Out << "Instruction::PtrToInt"; break;
775 case Instruction::IntToPtr: Out << "Instruction::IntToPtr"; break;
776 case Instruction::BitCast: Out << "Instruction::BitCast"; break;
778 Out << ", " << getCppName(CE->getOperand(0)) << ", "
779 << getCppName(CE->getType()) << ");";
781 unsigned N = CE->getNumOperands();
782 for (unsigned i = 0; i < N; ++i ) {
783 printConstant(CE->getOperand(i));
785 Out << "Constant* " << constName << " = ConstantExpr::";
786 switch (CE->getOpcode()) {
787 case Instruction::Add: Out << "getAdd("; break;
788 case Instruction::FAdd: Out << "getFAdd("; break;
789 case Instruction::Sub: Out << "getSub("; break;
790 case Instruction::FSub: Out << "getFSub("; break;
791 case Instruction::Mul: Out << "getMul("; break;
792 case Instruction::FMul: Out << "getFMul("; break;
793 case Instruction::UDiv: Out << "getUDiv("; break;
794 case Instruction::SDiv: Out << "getSDiv("; break;
795 case Instruction::FDiv: Out << "getFDiv("; break;
796 case Instruction::URem: Out << "getURem("; break;
797 case Instruction::SRem: Out << "getSRem("; break;
798 case Instruction::FRem: Out << "getFRem("; break;
799 case Instruction::And: Out << "getAnd("; break;
800 case Instruction::Or: Out << "getOr("; break;
801 case Instruction::Xor: Out << "getXor("; break;
802 case Instruction::ICmp:
803 Out << "getICmp(ICmpInst::ICMP_";
804 switch (CE->getPredicate()) {
805 case ICmpInst::ICMP_EQ: Out << "EQ"; break;
806 case ICmpInst::ICMP_NE: Out << "NE"; break;
807 case ICmpInst::ICMP_SLT: Out << "SLT"; break;
808 case ICmpInst::ICMP_ULT: Out << "ULT"; break;
809 case ICmpInst::ICMP_SGT: Out << "SGT"; break;
810 case ICmpInst::ICMP_UGT: Out << "UGT"; break;
811 case ICmpInst::ICMP_SLE: Out << "SLE"; break;
812 case ICmpInst::ICMP_ULE: Out << "ULE"; break;
813 case ICmpInst::ICMP_SGE: Out << "SGE"; break;
814 case ICmpInst::ICMP_UGE: Out << "UGE"; break;
815 default: error("Invalid ICmp Predicate");
818 case Instruction::FCmp:
819 Out << "getFCmp(FCmpInst::FCMP_";
820 switch (CE->getPredicate()) {
821 case FCmpInst::FCMP_FALSE: Out << "FALSE"; break;
822 case FCmpInst::FCMP_ORD: Out << "ORD"; break;
823 case FCmpInst::FCMP_UNO: Out << "UNO"; break;
824 case FCmpInst::FCMP_OEQ: Out << "OEQ"; break;
825 case FCmpInst::FCMP_UEQ: Out << "UEQ"; break;
826 case FCmpInst::FCMP_ONE: Out << "ONE"; break;
827 case FCmpInst::FCMP_UNE: Out << "UNE"; break;
828 case FCmpInst::FCMP_OLT: Out << "OLT"; break;
829 case FCmpInst::FCMP_ULT: Out << "ULT"; break;
830 case FCmpInst::FCMP_OGT: Out << "OGT"; break;
831 case FCmpInst::FCMP_UGT: Out << "UGT"; break;
832 case FCmpInst::FCMP_OLE: Out << "OLE"; break;
833 case FCmpInst::FCMP_ULE: Out << "ULE"; break;
834 case FCmpInst::FCMP_OGE: Out << "OGE"; break;
835 case FCmpInst::FCMP_UGE: Out << "UGE"; break;
836 case FCmpInst::FCMP_TRUE: Out << "TRUE"; break;
837 default: error("Invalid FCmp Predicate");
840 case Instruction::Shl: Out << "getShl("; break;
841 case Instruction::LShr: Out << "getLShr("; break;
842 case Instruction::AShr: Out << "getAShr("; break;
843 case Instruction::Select: Out << "getSelect("; break;
844 case Instruction::ExtractElement: Out << "getExtractElement("; break;
845 case Instruction::InsertElement: Out << "getInsertElement("; break;
846 case Instruction::ShuffleVector: Out << "getShuffleVector("; break;
848 error("Invalid constant expression");
851 Out << getCppName(CE->getOperand(0));
852 for (unsigned i = 1; i < CE->getNumOperands(); ++i)
853 Out << ", " << getCppName(CE->getOperand(i));
856 } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
857 Out << "Constant* " << constName << " = ";
858 Out << "BlockAddress::get(" << getOpName(BA->getBasicBlock()) << ");";
860 error("Bad Constant");
861 Out << "Constant* " << constName << " = 0; ";
866 void CppWriter::printConstants(const Module* M) {
867 // Traverse all the global variables looking for constant initializers
868 for (Module::const_global_iterator I = TheModule->global_begin(),
869 E = TheModule->global_end(); I != E; ++I)
870 if (I->hasInitializer())
871 printConstant(I->getInitializer());
873 // Traverse the LLVM functions looking for constants
874 for (Module::const_iterator FI = TheModule->begin(), FE = TheModule->end();
876 // Add all of the basic blocks and instructions
877 for (Function::const_iterator BB = FI->begin(),
878 E = FI->end(); BB != E; ++BB) {
879 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
881 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
882 if (Constant* C = dyn_cast<Constant>(I->getOperand(i))) {
891 void CppWriter::printVariableUses(const GlobalVariable *GV) {
892 nl(Out) << "// Type Definitions";
894 printType(GV->getType());
895 if (GV->hasInitializer()) {
896 const Constant *Init = GV->getInitializer();
897 printType(Init->getType());
898 if (const Function *F = dyn_cast<Function>(Init)) {
899 nl(Out)<< "/ Function Declarations"; nl(Out);
900 printFunctionHead(F);
901 } else if (const GlobalVariable* gv = dyn_cast<GlobalVariable>(Init)) {
902 nl(Out) << "// Global Variable Declarations"; nl(Out);
903 printVariableHead(gv);
905 nl(Out) << "// Global Variable Definitions"; nl(Out);
906 printVariableBody(gv);
908 nl(Out) << "// Constant Definitions"; nl(Out);
914 void CppWriter::printVariableHead(const GlobalVariable *GV) {
915 nl(Out) << "GlobalVariable* " << getCppName(GV);
917 Out << " = mod->getGlobalVariable(mod->getContext(), ";
918 printEscapedString(GV->getName());
919 Out << ", " << getCppName(GV->getType()->getElementType()) << ",true)";
920 nl(Out) << "if (!" << getCppName(GV) << ") {";
921 in(); nl(Out) << getCppName(GV);
923 Out << " = new GlobalVariable(/*Module=*/*mod, ";
924 nl(Out) << "/*Type=*/";
925 printCppName(GV->getType()->getElementType());
927 nl(Out) << "/*isConstant=*/" << (GV->isConstant()?"true":"false");
929 nl(Out) << "/*Linkage=*/";
930 printLinkageType(GV->getLinkage());
932 nl(Out) << "/*Initializer=*/0, ";
933 if (GV->hasInitializer()) {
934 Out << "// has initializer, specified below";
936 nl(Out) << "/*Name=*/\"";
937 printEscapedString(GV->getName());
941 if (GV->hasSection()) {
943 Out << "->setSection(\"";
944 printEscapedString(GV->getSection());
948 if (GV->getAlignment()) {
950 Out << "->setAlignment(" << utostr(GV->getAlignment()) << ");";
953 if (GV->getVisibility() != GlobalValue::DefaultVisibility) {
955 Out << "->setVisibility(";
956 printVisibilityType(GV->getVisibility());
960 if (GV->isThreadLocal()) {
962 Out << "->setThreadLocal(true);";
966 out(); Out << "}"; nl(Out);
970 void CppWriter::printVariableBody(const GlobalVariable *GV) {
971 if (GV->hasInitializer()) {
973 Out << "->setInitializer(";
974 Out << getCppName(GV->getInitializer()) << ");";
979 std::string CppWriter::getOpName(Value* V) {
980 if (!isa<Instruction>(V) || DefinedValues.find(V) != DefinedValues.end())
981 return getCppName(V);
983 // See if its alread in the map of forward references, if so just return the
984 // name we already set up for it
985 ForwardRefMap::const_iterator I = ForwardRefs.find(V);
986 if (I != ForwardRefs.end())
989 // This is a new forward reference. Generate a unique name for it
990 std::string result(std::string("fwdref_") + utostr(uniqueNum++));
992 // Yes, this is a hack. An Argument is the smallest instantiable value that
993 // we can make as a placeholder for the real value. We'll replace these
994 // Argument instances later.
995 Out << "Argument* " << result << " = new Argument("
996 << getCppName(V->getType()) << ");";
998 ForwardRefs[V] = result;
1002 // printInstruction - This member is called for each Instruction in a function.
1003 void CppWriter::printInstruction(const Instruction *I,
1004 const std::string& bbname) {
1005 std::string iName(getCppName(I));
1007 // Before we emit this instruction, we need to take care of generating any
1008 // forward references. So, we get the names of all the operands in advance
1009 const unsigned Ops(I->getNumOperands());
1010 std::string* opNames = new std::string[Ops];
1011 for (unsigned i = 0; i < Ops; i++)
1012 opNames[i] = getOpName(I->getOperand(i));
1014 switch (I->getOpcode()) {
1016 error("Invalid instruction");
1019 case Instruction::Ret: {
1020 const ReturnInst* ret = cast<ReturnInst>(I);
1021 Out << "ReturnInst::Create(mod->getContext(), "
1022 << (ret->getReturnValue() ? opNames[0] + ", " : "") << bbname << ");";
1025 case Instruction::Br: {
1026 const BranchInst* br = cast<BranchInst>(I);
1027 Out << "BranchInst::Create(" ;
1028 if (br->getNumOperands() == 3) {
1029 Out << opNames[2] << ", "
1030 << opNames[1] << ", "
1031 << opNames[0] << ", ";
1033 } else if (br->getNumOperands() == 1) {
1034 Out << opNames[0] << ", ";
1036 error("Branch with 2 operands?");
1038 Out << bbname << ");";
1041 case Instruction::Switch: {
1042 const SwitchInst *SI = cast<SwitchInst>(I);
1043 Out << "SwitchInst* " << iName << " = SwitchInst::Create("
1044 << opNames[0] << ", "
1045 << opNames[1] << ", "
1046 << SI->getNumCases() << ", " << bbname << ");";
1048 for (unsigned i = 2; i != SI->getNumOperands(); i += 2) {
1049 Out << iName << "->addCase("
1050 << opNames[i] << ", "
1051 << opNames[i+1] << ");";
1056 case Instruction::IndirectBr: {
1057 const IndirectBrInst *IBI = cast<IndirectBrInst>(I);
1058 Out << "IndirectBrInst *" << iName << " = IndirectBrInst::Create("
1059 << opNames[0] << ", " << IBI->getNumDestinations() << ");";
1061 for (unsigned i = 1; i != IBI->getNumOperands(); ++i) {
1062 Out << iName << "->addDestination(" << opNames[i] << ");";
1067 case Instruction::Invoke: {
1068 const InvokeInst* inv = cast<InvokeInst>(I);
1069 Out << "std::vector<Value*> " << iName << "_params;";
1071 for (unsigned i = 0; i < inv->getNumArgOperands(); ++i) {
1072 Out << iName << "_params.push_back("
1073 << getOpName(inv->getArgOperand(i)) << ");";
1076 // FIXME: This shouldn't use magic numbers -3, -2, and -1.
1077 Out << "InvokeInst *" << iName << " = InvokeInst::Create("
1078 << getOpName(inv->getCalledFunction()) << ", "
1079 << getOpName(inv->getNormalDest()) << ", "
1080 << getOpName(inv->getUnwindDest()) << ", "
1081 << iName << "_params.begin(), "
1082 << iName << "_params.end(), \"";
1083 printEscapedString(inv->getName());
1084 Out << "\", " << bbname << ");";
1085 nl(Out) << iName << "->setCallingConv(";
1086 printCallingConv(inv->getCallingConv());
1088 printAttributes(inv->getAttributes(), iName);
1089 Out << iName << "->setAttributes(" << iName << "_PAL);";
1093 case Instruction::Unwind: {
1094 Out << "new UnwindInst("
1098 case Instruction::Unreachable: {
1099 Out << "new UnreachableInst("
1100 << "mod->getContext(), "
1104 case Instruction::Add:
1105 case Instruction::FAdd:
1106 case Instruction::Sub:
1107 case Instruction::FSub:
1108 case Instruction::Mul:
1109 case Instruction::FMul:
1110 case Instruction::UDiv:
1111 case Instruction::SDiv:
1112 case Instruction::FDiv:
1113 case Instruction::URem:
1114 case Instruction::SRem:
1115 case Instruction::FRem:
1116 case Instruction::And:
1117 case Instruction::Or:
1118 case Instruction::Xor:
1119 case Instruction::Shl:
1120 case Instruction::LShr:
1121 case Instruction::AShr:{
1122 Out << "BinaryOperator* " << iName << " = BinaryOperator::Create(";
1123 switch (I->getOpcode()) {
1124 case Instruction::Add: Out << "Instruction::Add"; break;
1125 case Instruction::FAdd: Out << "Instruction::FAdd"; break;
1126 case Instruction::Sub: Out << "Instruction::Sub"; break;
1127 case Instruction::FSub: Out << "Instruction::FSub"; break;
1128 case Instruction::Mul: Out << "Instruction::Mul"; break;
1129 case Instruction::FMul: Out << "Instruction::FMul"; break;
1130 case Instruction::UDiv:Out << "Instruction::UDiv"; break;
1131 case Instruction::SDiv:Out << "Instruction::SDiv"; break;
1132 case Instruction::FDiv:Out << "Instruction::FDiv"; break;
1133 case Instruction::URem:Out << "Instruction::URem"; break;
1134 case Instruction::SRem:Out << "Instruction::SRem"; break;
1135 case Instruction::FRem:Out << "Instruction::FRem"; break;
1136 case Instruction::And: Out << "Instruction::And"; break;
1137 case Instruction::Or: Out << "Instruction::Or"; break;
1138 case Instruction::Xor: Out << "Instruction::Xor"; break;
1139 case Instruction::Shl: Out << "Instruction::Shl"; break;
1140 case Instruction::LShr:Out << "Instruction::LShr"; break;
1141 case Instruction::AShr:Out << "Instruction::AShr"; break;
1142 default: Out << "Instruction::BadOpCode"; break;
1144 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1145 printEscapedString(I->getName());
1146 Out << "\", " << bbname << ");";
1149 case Instruction::FCmp: {
1150 Out << "FCmpInst* " << iName << " = new FCmpInst(*" << bbname << ", ";
1151 switch (cast<FCmpInst>(I)->getPredicate()) {
1152 case FCmpInst::FCMP_FALSE: Out << "FCmpInst::FCMP_FALSE"; break;
1153 case FCmpInst::FCMP_OEQ : Out << "FCmpInst::FCMP_OEQ"; break;
1154 case FCmpInst::FCMP_OGT : Out << "FCmpInst::FCMP_OGT"; break;
1155 case FCmpInst::FCMP_OGE : Out << "FCmpInst::FCMP_OGE"; break;
1156 case FCmpInst::FCMP_OLT : Out << "FCmpInst::FCMP_OLT"; break;
1157 case FCmpInst::FCMP_OLE : Out << "FCmpInst::FCMP_OLE"; break;
1158 case FCmpInst::FCMP_ONE : Out << "FCmpInst::FCMP_ONE"; break;
1159 case FCmpInst::FCMP_ORD : Out << "FCmpInst::FCMP_ORD"; break;
1160 case FCmpInst::FCMP_UNO : Out << "FCmpInst::FCMP_UNO"; break;
1161 case FCmpInst::FCMP_UEQ : Out << "FCmpInst::FCMP_UEQ"; break;
1162 case FCmpInst::FCMP_UGT : Out << "FCmpInst::FCMP_UGT"; break;
1163 case FCmpInst::FCMP_UGE : Out << "FCmpInst::FCMP_UGE"; break;
1164 case FCmpInst::FCMP_ULT : Out << "FCmpInst::FCMP_ULT"; break;
1165 case FCmpInst::FCMP_ULE : Out << "FCmpInst::FCMP_ULE"; break;
1166 case FCmpInst::FCMP_UNE : Out << "FCmpInst::FCMP_UNE"; break;
1167 case FCmpInst::FCMP_TRUE : Out << "FCmpInst::FCMP_TRUE"; break;
1168 default: Out << "FCmpInst::BAD_ICMP_PREDICATE"; break;
1170 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1171 printEscapedString(I->getName());
1175 case Instruction::ICmp: {
1176 Out << "ICmpInst* " << iName << " = new ICmpInst(*" << bbname << ", ";
1177 switch (cast<ICmpInst>(I)->getPredicate()) {
1178 case ICmpInst::ICMP_EQ: Out << "ICmpInst::ICMP_EQ"; break;
1179 case ICmpInst::ICMP_NE: Out << "ICmpInst::ICMP_NE"; break;
1180 case ICmpInst::ICMP_ULE: Out << "ICmpInst::ICMP_ULE"; break;
1181 case ICmpInst::ICMP_SLE: Out << "ICmpInst::ICMP_SLE"; break;
1182 case ICmpInst::ICMP_UGE: Out << "ICmpInst::ICMP_UGE"; break;
1183 case ICmpInst::ICMP_SGE: Out << "ICmpInst::ICMP_SGE"; break;
1184 case ICmpInst::ICMP_ULT: Out << "ICmpInst::ICMP_ULT"; break;
1185 case ICmpInst::ICMP_SLT: Out << "ICmpInst::ICMP_SLT"; break;
1186 case ICmpInst::ICMP_UGT: Out << "ICmpInst::ICMP_UGT"; break;
1187 case ICmpInst::ICMP_SGT: Out << "ICmpInst::ICMP_SGT"; break;
1188 default: Out << "ICmpInst::BAD_ICMP_PREDICATE"; break;
1190 Out << ", " << opNames[0] << ", " << opNames[1] << ", \"";
1191 printEscapedString(I->getName());
1195 case Instruction::Alloca: {
1196 const AllocaInst* allocaI = cast<AllocaInst>(I);
1197 Out << "AllocaInst* " << iName << " = new AllocaInst("
1198 << getCppName(allocaI->getAllocatedType()) << ", ";
1199 if (allocaI->isArrayAllocation())
1200 Out << opNames[0] << ", ";
1202 printEscapedString(allocaI->getName());
1203 Out << "\", " << bbname << ");";
1204 if (allocaI->getAlignment())
1205 nl(Out) << iName << "->setAlignment("
1206 << allocaI->getAlignment() << ");";
1209 case Instruction::Load: {
1210 const LoadInst* load = cast<LoadInst>(I);
1211 Out << "LoadInst* " << iName << " = new LoadInst("
1212 << opNames[0] << ", \"";
1213 printEscapedString(load->getName());
1214 Out << "\", " << (load->isVolatile() ? "true" : "false" )
1215 << ", " << bbname << ");";
1218 case Instruction::Store: {
1219 const StoreInst* store = cast<StoreInst>(I);
1220 Out << " new StoreInst("
1221 << opNames[0] << ", "
1222 << opNames[1] << ", "
1223 << (store->isVolatile() ? "true" : "false")
1224 << ", " << bbname << ");";
1227 case Instruction::GetElementPtr: {
1228 const GetElementPtrInst* gep = cast<GetElementPtrInst>(I);
1229 if (gep->getNumOperands() <= 2) {
1230 Out << "GetElementPtrInst* " << iName << " = GetElementPtrInst::Create("
1232 if (gep->getNumOperands() == 2)
1233 Out << ", " << opNames[1];
1235 Out << "std::vector<Value*> " << iName << "_indices;";
1237 for (unsigned i = 1; i < gep->getNumOperands(); ++i ) {
1238 Out << iName << "_indices.push_back("
1239 << opNames[i] << ");";
1242 Out << "Instruction* " << iName << " = GetElementPtrInst::Create("
1243 << opNames[0] << ", " << iName << "_indices";
1246 printEscapedString(gep->getName());
1247 Out << "\", " << bbname << ");";
1250 case Instruction::PHI: {
1251 const PHINode* phi = cast<PHINode>(I);
1253 Out << "PHINode* " << iName << " = PHINode::Create("
1254 << getCppName(phi->getType()) << ", "
1255 << phi->getNumIncomingValues() << ", \"";
1256 printEscapedString(phi->getName());
1257 Out << "\", " << bbname << ");";
1259 for (unsigned i = 0; i < phi->getNumIncomingValues(); ++i) {
1260 Out << iName << "->addIncoming("
1261 << opNames[PHINode::getOperandNumForIncomingValue(i)] << ", "
1262 << getOpName(phi->getIncomingBlock(i)) << ");";
1267 case Instruction::Trunc:
1268 case Instruction::ZExt:
1269 case Instruction::SExt:
1270 case Instruction::FPTrunc:
1271 case Instruction::FPExt:
1272 case Instruction::FPToUI:
1273 case Instruction::FPToSI:
1274 case Instruction::UIToFP:
1275 case Instruction::SIToFP:
1276 case Instruction::PtrToInt:
1277 case Instruction::IntToPtr:
1278 case Instruction::BitCast: {
1279 const CastInst* cst = cast<CastInst>(I);
1280 Out << "CastInst* " << iName << " = new ";
1281 switch (I->getOpcode()) {
1282 case Instruction::Trunc: Out << "TruncInst"; break;
1283 case Instruction::ZExt: Out << "ZExtInst"; break;
1284 case Instruction::SExt: Out << "SExtInst"; break;
1285 case Instruction::FPTrunc: Out << "FPTruncInst"; break;
1286 case Instruction::FPExt: Out << "FPExtInst"; break;
1287 case Instruction::FPToUI: Out << "FPToUIInst"; break;
1288 case Instruction::FPToSI: Out << "FPToSIInst"; break;
1289 case Instruction::UIToFP: Out << "UIToFPInst"; break;
1290 case Instruction::SIToFP: Out << "SIToFPInst"; break;
1291 case Instruction::PtrToInt: Out << "PtrToIntInst"; break;
1292 case Instruction::IntToPtr: Out << "IntToPtrInst"; break;
1293 case Instruction::BitCast: Out << "BitCastInst"; break;
1294 default: assert(!"Unreachable"); break;
1296 Out << "(" << opNames[0] << ", "
1297 << getCppName(cst->getType()) << ", \"";
1298 printEscapedString(cst->getName());
1299 Out << "\", " << bbname << ");";
1302 case Instruction::Call: {
1303 const CallInst* call = cast<CallInst>(I);
1304 if (const InlineAsm* ila = dyn_cast<InlineAsm>(call->getCalledValue())) {
1305 Out << "InlineAsm* " << getCppName(ila) << " = InlineAsm::get("
1306 << getCppName(ila->getFunctionType()) << ", \""
1307 << ila->getAsmString() << "\", \""
1308 << ila->getConstraintString() << "\","
1309 << (ila->hasSideEffects() ? "true" : "false") << ");";
1312 if (call->getNumArgOperands() > 1) {
1313 Out << "std::vector<Value*> " << iName << "_params;";
1315 for (unsigned i = 0; i < call->getNumArgOperands(); ++i) {
1316 Out << iName << "_params.push_back(" << opNames[i] << ");";
1319 Out << "CallInst* " << iName << " = CallInst::Create("
1320 << opNames[call->getNumArgOperands()] << ", "
1321 << iName << "_params, \"";
1322 } else if (call->getNumArgOperands() == 1) {
1323 Out << "CallInst* " << iName << " = CallInst::Create("
1324 << opNames[call->getNumArgOperands()] << ", " << opNames[0] << ", \"";
1326 Out << "CallInst* " << iName << " = CallInst::Create("
1327 << opNames[call->getNumArgOperands()] << ", \"";
1329 printEscapedString(call->getName());
1330 Out << "\", " << bbname << ");";
1331 nl(Out) << iName << "->setCallingConv(";
1332 printCallingConv(call->getCallingConv());
1334 nl(Out) << iName << "->setTailCall("
1335 << (call->isTailCall() ? "true" : "false");
1338 printAttributes(call->getAttributes(), iName);
1339 Out << iName << "->setAttributes(" << iName << "_PAL);";
1343 case Instruction::Select: {
1344 const SelectInst* sel = cast<SelectInst>(I);
1345 Out << "SelectInst* " << getCppName(sel) << " = SelectInst::Create(";
1346 Out << opNames[0] << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1347 printEscapedString(sel->getName());
1348 Out << "\", " << bbname << ");";
1351 case Instruction::UserOp1:
1353 case Instruction::UserOp2: {
1354 /// FIXME: What should be done here?
1357 case Instruction::VAArg: {
1358 const VAArgInst* va = cast<VAArgInst>(I);
1359 Out << "VAArgInst* " << getCppName(va) << " = new VAArgInst("
1360 << opNames[0] << ", " << getCppName(va->getType()) << ", \"";
1361 printEscapedString(va->getName());
1362 Out << "\", " << bbname << ");";
1365 case Instruction::ExtractElement: {
1366 const ExtractElementInst* eei = cast<ExtractElementInst>(I);
1367 Out << "ExtractElementInst* " << getCppName(eei)
1368 << " = new ExtractElementInst(" << opNames[0]
1369 << ", " << opNames[1] << ", \"";
1370 printEscapedString(eei->getName());
1371 Out << "\", " << bbname << ");";
1374 case Instruction::InsertElement: {
1375 const InsertElementInst* iei = cast<InsertElementInst>(I);
1376 Out << "InsertElementInst* " << getCppName(iei)
1377 << " = InsertElementInst::Create(" << opNames[0]
1378 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1379 printEscapedString(iei->getName());
1380 Out << "\", " << bbname << ");";
1383 case Instruction::ShuffleVector: {
1384 const ShuffleVectorInst* svi = cast<ShuffleVectorInst>(I);
1385 Out << "ShuffleVectorInst* " << getCppName(svi)
1386 << " = new ShuffleVectorInst(" << opNames[0]
1387 << ", " << opNames[1] << ", " << opNames[2] << ", \"";
1388 printEscapedString(svi->getName());
1389 Out << "\", " << bbname << ");";
1392 case Instruction::ExtractValue: {
1393 const ExtractValueInst *evi = cast<ExtractValueInst>(I);
1394 Out << "std::vector<unsigned> " << iName << "_indices;";
1396 for (unsigned i = 0; i < evi->getNumIndices(); ++i) {
1397 Out << iName << "_indices.push_back("
1398 << evi->idx_begin()[i] << ");";
1401 Out << "ExtractValueInst* " << getCppName(evi)
1402 << " = ExtractValueInst::Create(" << opNames[0]
1404 << iName << "_indices.begin(), " << iName << "_indices.end(), \"";
1405 printEscapedString(evi->getName());
1406 Out << "\", " << bbname << ");";
1409 case Instruction::InsertValue: {
1410 const InsertValueInst *ivi = cast<InsertValueInst>(I);
1411 Out << "std::vector<unsigned> " << iName << "_indices;";
1413 for (unsigned i = 0; i < ivi->getNumIndices(); ++i) {
1414 Out << iName << "_indices.push_back("
1415 << ivi->idx_begin()[i] << ");";
1418 Out << "InsertValueInst* " << getCppName(ivi)
1419 << " = InsertValueInst::Create(" << opNames[0]
1420 << ", " << opNames[1] << ", "
1421 << iName << "_indices.begin(), " << iName << "_indices.end(), \"";
1422 printEscapedString(ivi->getName());
1423 Out << "\", " << bbname << ");";
1427 DefinedValues.insert(I);
1432 // Print out the types, constants and declarations needed by one function
1433 void CppWriter::printFunctionUses(const Function* F) {
1434 nl(Out) << "// Type Definitions"; nl(Out);
1436 // Print the function's return type
1437 printType(F->getReturnType());
1439 // Print the function's function type
1440 printType(F->getFunctionType());
1442 // Print the types of each of the function's arguments
1443 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1445 printType(AI->getType());
1449 // Print type definitions for every type referenced by an instruction and
1450 // make a note of any global values or constants that are referenced
1451 SmallPtrSet<GlobalValue*,64> gvs;
1452 SmallPtrSet<Constant*,64> consts;
1453 for (Function::const_iterator BB = F->begin(), BE = F->end();
1455 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
1457 // Print the type of the instruction itself
1458 printType(I->getType());
1460 // Print the type of each of the instruction's operands
1461 for (unsigned i = 0; i < I->getNumOperands(); ++i) {
1462 Value* operand = I->getOperand(i);
1463 printType(operand->getType());
1465 // If the operand references a GVal or Constant, make a note of it
1466 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
1468 if (GenerationType != GenFunction)
1469 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
1470 if (GVar->hasInitializer())
1471 consts.insert(GVar->getInitializer());
1472 } else if (Constant* C = dyn_cast<Constant>(operand)) {
1474 for (unsigned j = 0; j < C->getNumOperands(); ++j) {
1475 // If the operand references a GVal or Constant, make a note of it
1476 Value* operand = C->getOperand(j);
1477 printType(operand->getType());
1478 if (GlobalValue* GV = dyn_cast<GlobalValue>(operand)) {
1480 if (GenerationType != GenFunction)
1481 if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
1482 if (GVar->hasInitializer())
1483 consts.insert(GVar->getInitializer());
1491 // Print the function declarations for any functions encountered
1492 nl(Out) << "// Function Declarations"; nl(Out);
1493 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1495 if (Function* Fun = dyn_cast<Function>(*I)) {
1496 if (!is_inline || Fun != F)
1497 printFunctionHead(Fun);
1501 // Print the global variable declarations for any variables encountered
1502 nl(Out) << "// Global Variable Declarations"; nl(Out);
1503 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1505 if (GlobalVariable* F = dyn_cast<GlobalVariable>(*I))
1506 printVariableHead(F);
1509 // Print the constants found
1510 nl(Out) << "// Constant Definitions"; nl(Out);
1511 for (SmallPtrSet<Constant*,64>::iterator I = consts.begin(),
1512 E = consts.end(); I != E; ++I) {
1516 // Process the global variables definitions now that all the constants have
1517 // been emitted. These definitions just couple the gvars with their constant
1519 if (GenerationType != GenFunction) {
1520 nl(Out) << "// Global Variable Definitions"; nl(Out);
1521 for (SmallPtrSet<GlobalValue*,64>::iterator I = gvs.begin(), E = gvs.end();
1523 if (GlobalVariable* GV = dyn_cast<GlobalVariable>(*I))
1524 printVariableBody(GV);
1529 void CppWriter::printFunctionHead(const Function* F) {
1530 nl(Out) << "Function* " << getCppName(F);
1532 Out << " = mod->getFunction(\"";
1533 printEscapedString(F->getName());
1534 Out << "\", " << getCppName(F->getFunctionType()) << ");";
1535 nl(Out) << "if (!" << getCppName(F) << ") {";
1536 nl(Out) << getCppName(F);
1538 Out<< " = Function::Create(";
1539 nl(Out,1) << "/*Type=*/" << getCppName(F->getFunctionType()) << ",";
1540 nl(Out) << "/*Linkage=*/";
1541 printLinkageType(F->getLinkage());
1543 nl(Out) << "/*Name=*/\"";
1544 printEscapedString(F->getName());
1545 Out << "\", mod); " << (F->isDeclaration()? "// (external, no body)" : "");
1548 Out << "->setCallingConv(";
1549 printCallingConv(F->getCallingConv());
1552 if (F->hasSection()) {
1554 Out << "->setSection(\"" << F->getSection() << "\");";
1557 if (F->getAlignment()) {
1559 Out << "->setAlignment(" << F->getAlignment() << ");";
1562 if (F->getVisibility() != GlobalValue::DefaultVisibility) {
1564 Out << "->setVisibility(";
1565 printVisibilityType(F->getVisibility());
1571 Out << "->setGC(\"" << F->getGC() << "\");";
1578 printAttributes(F->getAttributes(), getCppName(F));
1580 Out << "->setAttributes(" << getCppName(F) << "_PAL);";
1584 void CppWriter::printFunctionBody(const Function *F) {
1585 if (F->isDeclaration())
1586 return; // external functions have no bodies.
1588 // Clear the DefinedValues and ForwardRefs maps because we can't have
1589 // cross-function forward refs
1590 ForwardRefs.clear();
1591 DefinedValues.clear();
1593 // Create all the argument values
1595 if (!F->arg_empty()) {
1596 Out << "Function::arg_iterator args = " << getCppName(F)
1597 << "->arg_begin();";
1600 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1602 Out << "Value* " << getCppName(AI) << " = args++;";
1604 if (AI->hasName()) {
1605 Out << getCppName(AI) << "->setName(\"" << AI->getName() << "\");";
1611 // Create all the basic blocks
1613 for (Function::const_iterator BI = F->begin(), BE = F->end();
1615 std::string bbname(getCppName(BI));
1616 Out << "BasicBlock* " << bbname <<
1617 " = BasicBlock::Create(mod->getContext(), \"";
1619 printEscapedString(BI->getName());
1620 Out << "\"," << getCppName(BI->getParent()) << ",0);";
1624 // Output all of its basic blocks... for the function
1625 for (Function::const_iterator BI = F->begin(), BE = F->end();
1627 std::string bbname(getCppName(BI));
1628 nl(Out) << "// Block " << BI->getName() << " (" << bbname << ")";
1631 // Output all of the instructions in the basic block...
1632 for (BasicBlock::const_iterator I = BI->begin(), E = BI->end();
1634 printInstruction(I,bbname);
1638 // Loop over the ForwardRefs and resolve them now that all instructions
1640 if (!ForwardRefs.empty()) {
1641 nl(Out) << "// Resolve Forward References";
1645 while (!ForwardRefs.empty()) {
1646 ForwardRefMap::iterator I = ForwardRefs.begin();
1647 Out << I->second << "->replaceAllUsesWith("
1648 << getCppName(I->first) << "); delete " << I->second << ";";
1650 ForwardRefs.erase(I);
1654 void CppWriter::printInline(const std::string& fname,
1655 const std::string& func) {
1656 const Function* F = TheModule->getFunction(func);
1658 error(std::string("Function '") + func + "' not found in input module");
1661 if (F->isDeclaration()) {
1662 error(std::string("Function '") + func + "' is external!");
1665 nl(Out) << "BasicBlock* " << fname << "(Module* mod, Function *"
1667 unsigned arg_count = 1;
1668 for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
1670 Out << ", Value* arg_" << arg_count;
1675 printFunctionUses(F);
1676 printFunctionBody(F);
1678 Out << "return " << getCppName(F->begin()) << ";";
1683 void CppWriter::printModuleBody() {
1684 // Print out all the type definitions
1685 nl(Out) << "// Type Definitions"; nl(Out);
1686 printTypes(TheModule);
1688 // Functions can call each other and global variables can reference them so
1689 // define all the functions first before emitting their function bodies.
1690 nl(Out) << "// Function Declarations"; nl(Out);
1691 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1693 printFunctionHead(I);
1695 // Process the global variables declarations. We can't initialze them until
1696 // after the constants are printed so just print a header for each global
1697 nl(Out) << "// Global Variable Declarations\n"; nl(Out);
1698 for (Module::const_global_iterator I = TheModule->global_begin(),
1699 E = TheModule->global_end(); I != E; ++I) {
1700 printVariableHead(I);
1703 // Print out all the constants definitions. Constants don't recurse except
1704 // through GlobalValues. All GlobalValues have been declared at this point
1705 // so we can proceed to generate the constants.
1706 nl(Out) << "// Constant Definitions"; nl(Out);
1707 printConstants(TheModule);
1709 // Process the global variables definitions now that all the constants have
1710 // been emitted. These definitions just couple the gvars with their constant
1712 nl(Out) << "// Global Variable Definitions"; nl(Out);
1713 for (Module::const_global_iterator I = TheModule->global_begin(),
1714 E = TheModule->global_end(); I != E; ++I) {
1715 printVariableBody(I);
1718 // Finally, we can safely put out all of the function bodies.
1719 nl(Out) << "// Function Definitions"; nl(Out);
1720 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
1722 if (!I->isDeclaration()) {
1723 nl(Out) << "// Function: " << I->getName() << " (" << getCppName(I)
1727 printFunctionBody(I);
1734 void CppWriter::printProgram(const std::string& fname,
1735 const std::string& mName) {
1736 Out << "#include <llvm/LLVMContext.h>\n";
1737 Out << "#include <llvm/Module.h>\n";
1738 Out << "#include <llvm/DerivedTypes.h>\n";
1739 Out << "#include <llvm/Constants.h>\n";
1740 Out << "#include <llvm/GlobalVariable.h>\n";
1741 Out << "#include <llvm/Function.h>\n";
1742 Out << "#include <llvm/CallingConv.h>\n";
1743 Out << "#include <llvm/BasicBlock.h>\n";
1744 Out << "#include <llvm/Instructions.h>\n";
1745 Out << "#include <llvm/InlineAsm.h>\n";
1746 Out << "#include <llvm/Support/FormattedStream.h>\n";
1747 Out << "#include <llvm/Support/MathExtras.h>\n";
1748 Out << "#include <llvm/Pass.h>\n";
1749 Out << "#include <llvm/PassManager.h>\n";
1750 Out << "#include <llvm/ADT/SmallVector.h>\n";
1751 Out << "#include <llvm/Analysis/Verifier.h>\n";
1752 Out << "#include <llvm/Assembly/PrintModulePass.h>\n";
1753 Out << "#include <algorithm>\n";
1754 Out << "using namespace llvm;\n\n";
1755 Out << "Module* " << fname << "();\n\n";
1756 Out << "int main(int argc, char**argv) {\n";
1757 Out << " Module* Mod = " << fname << "();\n";
1758 Out << " verifyModule(*Mod, PrintMessageAction);\n";
1759 Out << " PassManager PM;\n";
1760 Out << " PM.add(createPrintModulePass(&outs()));\n";
1761 Out << " PM.run(*Mod);\n";
1762 Out << " return 0;\n";
1764 printModule(fname,mName);
1767 void CppWriter::printModule(const std::string& fname,
1768 const std::string& mName) {
1769 nl(Out) << "Module* " << fname << "() {";
1770 nl(Out,1) << "// Module Construction";
1771 nl(Out) << "Module* mod = new Module(\"";
1772 printEscapedString(mName);
1773 Out << "\", getGlobalContext());";
1774 if (!TheModule->getTargetTriple().empty()) {
1775 nl(Out) << "mod->setDataLayout(\"" << TheModule->getDataLayout() << "\");";
1777 if (!TheModule->getTargetTriple().empty()) {
1778 nl(Out) << "mod->setTargetTriple(\"" << TheModule->getTargetTriple()
1782 if (!TheModule->getModuleInlineAsm().empty()) {
1783 nl(Out) << "mod->setModuleInlineAsm(\"";
1784 printEscapedString(TheModule->getModuleInlineAsm());
1789 // Loop over the dependent libraries and emit them.
1790 Module::lib_iterator LI = TheModule->lib_begin();
1791 Module::lib_iterator LE = TheModule->lib_end();
1793 Out << "mod->addLibrary(\"" << *LI << "\");";
1798 nl(Out) << "return mod;";
1803 void CppWriter::printContents(const std::string& fname,
1804 const std::string& mName) {
1805 Out << "\nModule* " << fname << "(Module *mod) {\n";
1806 Out << "\nmod->setModuleIdentifier(\"";
1807 printEscapedString(mName);
1810 Out << "\nreturn mod;\n";
1814 void CppWriter::printFunction(const std::string& fname,
1815 const std::string& funcName) {
1816 const Function* F = TheModule->getFunction(funcName);
1818 error(std::string("Function '") + funcName + "' not found in input module");
1821 Out << "\nFunction* " << fname << "(Module *mod) {\n";
1822 printFunctionUses(F);
1823 printFunctionHead(F);
1824 printFunctionBody(F);
1825 Out << "return " << getCppName(F) << ";\n";
1829 void CppWriter::printFunctions() {
1830 const Module::FunctionListType &funcs = TheModule->getFunctionList();
1831 Module::const_iterator I = funcs.begin();
1832 Module::const_iterator IE = funcs.end();
1834 for (; I != IE; ++I) {
1835 const Function &func = *I;
1836 if (!func.isDeclaration()) {
1837 std::string name("define_");
1838 name += func.getName();
1839 printFunction(name, func.getName());
1844 void CppWriter::printVariable(const std::string& fname,
1845 const std::string& varName) {
1846 const GlobalVariable* GV = TheModule->getNamedGlobal(varName);
1849 error(std::string("Variable '") + varName + "' not found in input module");
1852 Out << "\nGlobalVariable* " << fname << "(Module *mod) {\n";
1853 printVariableUses(GV);
1854 printVariableHead(GV);
1855 printVariableBody(GV);
1856 Out << "return " << getCppName(GV) << ";\n";
1860 void CppWriter::printType(const std::string &fname,
1861 const std::string &typeName) {
1862 Type* Ty = TheModule->getTypeByName(typeName);
1864 error(std::string("Type '") + typeName + "' not found in input module");
1867 Out << "\nType* " << fname << "(Module *mod) {\n";
1869 Out << "return " << getCppName(Ty) << ";\n";
1873 bool CppWriter::runOnModule(Module &M) {
1877 Out << "// Generated by llvm2cpp - DO NOT MODIFY!\n\n";
1879 // Get the name of the function we're supposed to generate
1880 std::string fname = FuncName.getValue();
1882 // Get the name of the thing we are to generate
1883 std::string tgtname = NameToGenerate.getValue();
1884 if (GenerationType == GenModule ||
1885 GenerationType == GenContents ||
1886 GenerationType == GenProgram ||
1887 GenerationType == GenFunctions) {
1888 if (tgtname == "!bad!") {
1889 if (M.getModuleIdentifier() == "-")
1890 tgtname = "<stdin>";
1892 tgtname = M.getModuleIdentifier();
1894 } else if (tgtname == "!bad!")
1895 error("You must use the -for option with -gen-{function,variable,type}");
1897 switch (WhatToGenerate(GenerationType)) {
1900 fname = "makeLLVMModule";
1901 printProgram(fname,tgtname);
1905 fname = "makeLLVMModule";
1906 printModule(fname,tgtname);
1910 fname = "makeLLVMModuleContents";
1911 printContents(fname,tgtname);
1915 fname = "makeLLVMFunction";
1916 printFunction(fname,tgtname);
1923 fname = "makeLLVMInline";
1924 printInline(fname,tgtname);
1928 fname = "makeLLVMVariable";
1929 printVariable(fname,tgtname);
1933 fname = "makeLLVMType";
1934 printType(fname,tgtname);
1937 error("Invalid generation option");
1943 char CppWriter::ID = 0;
1945 //===----------------------------------------------------------------------===//
1946 // External Interface declaration
1947 //===----------------------------------------------------------------------===//
1949 bool CPPTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
1950 formatted_raw_ostream &o,
1951 CodeGenFileType FileType,
1952 CodeGenOpt::Level OptLevel,
1953 bool DisableVerify) {
1954 if (FileType != TargetMachine::CGFT_AssemblyFile) return true;
1955 PM.add(new CppWriter(o));