mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-07 14:33:15 +00:00
Fix many small bugs in llvm2cpp. This patch gets llvm2cpp working with
everything except PHI nodes and one odd recurse/opaque type situation. PHI nodes forward reference INSTRUCTIONS (aaaaaaaahhhhhhh!) :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28554 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
parent
efcaa42c28
commit
1a2a0cc5a3
@ -59,7 +59,8 @@ private:
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void printTypes(const Module* M);
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void printConstants(const Module* M);
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void printConstant(const Constant *CPV);
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void printGlobal(const GlobalVariable *GV);
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void printGlobalHead(const GlobalVariable *GV);
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void printGlobalBody(const GlobalVariable *GV);
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void printFunctionHead(const Function *F);
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void printFunctionBody(const Function *F);
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void printInstruction(const Instruction *I, const std::string& bbname);
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@ -86,13 +87,20 @@ CppWriter::printEscapedString(const std::string &Str) {
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if (isprint(C) && C != '"' && C != '\\') {
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Out << C;
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} else {
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Out << '\\'
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Out << "\\x"
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<< (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
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<< (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
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}
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}
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}
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inline void
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sanitize(std::string& str) {
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for (size_t i = 0; i < str.length(); ++i)
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if (!isalnum(str[i]) && str[i] != '_')
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str[i] = '_';
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}
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inline const char*
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getTypePrefix(const Type* Ty ) {
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const char* prefix;
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@ -139,6 +147,7 @@ CppWriter::getCppName(const Value* val) {
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name = getTypePrefix(val->getType());
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}
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name += (val->hasName() ? val->getName() : utostr(uniqueNum++));
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sanitize(name);
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NameSet::iterator NI = UsedNames.find(name);
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if (NI != UsedNames.end())
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name += std::string("_") + utostr(uniqueNum++);
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@ -221,6 +230,7 @@ CppWriter::getCppName(const Type* Ty)
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name = std::string(prefix) + *tName;
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else
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name = std::string(prefix) + utostr(uniqueNum++);
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sanitize(name);
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// Save the name
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return TypeNames[Ty] = name;
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@ -267,30 +277,44 @@ void CppWriter::printModule(const Module *M) {
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Out << "\n// Type Definitions\n";
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printTypes(M);
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// Print out all the constants declarations
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Out << "\n// Constant Definitions\n";
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printConstants(M);
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// Process the global variables
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Out << "\n// Global Variable Definitions\n";
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for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
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I != E; ++I) {
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printGlobal(I);
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}
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// Functions can call each other so define all the functions first before
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// emitting their function bodies.
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// Functions can call each other and global variables can reference them so
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// define all the functions first before emitting their function bodies.
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Out << "\n// Function Declarations\n";
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for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
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printFunctionHead(I);
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// Output all of the function bodies.
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// Process the global variables declarations. We can't initialze them until
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// after the constants are printed so just print a header for each global
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Out << "\n// Global Variable Declarations\n";
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for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
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I != E; ++I) {
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printGlobalHead(I);
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}
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// Print out all the constants definitions. Constants don't recurse except
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// through GlobalValues. All GlobalValues have been declared at this point
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// so we can proceed to generate the constants.
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Out << "\n// Constant Definitions\n";
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printConstants(M);
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// Process the global variables definitions now that all the constants have
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// been emitted. These definitions just couple the gvars with their constant
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// initializers.
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Out << "\n// Global Variable Definitions\n";
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for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
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I != E; ++I) {
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printGlobalBody(I);
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}
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// Finally, we can safely put out all of the function bodies.
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Out << "\n// Function Definitions\n";
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for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I) {
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Out << "\n// Function: " << I->getName() << "(" << getCppName(I) << ")\n";
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Out << "{\n";
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printFunctionBody(I);
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Out << "}\n";
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if (!I->isExternal()) {
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Out << "\n// Function: " << I->getName() << " (" << getCppName(I)
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<< ")\n{\n";
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printFunctionBody(I);
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Out << "}\n";
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}
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}
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}
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@ -324,7 +348,8 @@ CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) {
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Out << "GlobalValue::GhostLinkage"; break;
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}
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}
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void CppWriter::printGlobal(const GlobalVariable *GV) {
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void CppWriter::printGlobalHead(const GlobalVariable *GV) {
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Out << "\n";
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Out << "GlobalVariable* ";
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printCppName(GV);
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@ -335,13 +360,11 @@ void CppWriter::printGlobal(const GlobalVariable *GV) {
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Out << " /*isConstant=*/" << (GV->isConstant()?"true":"false")
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<< ",\n /*Linkage=*/";
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printLinkageType(GV->getLinkage());
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Out << ",\n /*Initializer=*/";
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Out << ",\n /*Initializer=*/0, ";
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if (GV->hasInitializer()) {
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printCppName(GV->getInitializer());
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} else {
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Out << "0";
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Out << "// has initializer, specified below";
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}
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Out << ",\n /*Name=*/\"";
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Out << "\n /*Name=*/\"";
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printEscapedString(GV->getName());
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Out << "\",\n mod);\n";
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@ -357,6 +380,17 @@ void CppWriter::printGlobal(const GlobalVariable *GV) {
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};
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}
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void
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CppWriter::printGlobalBody(const GlobalVariable *GV) {
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if (GV->hasInitializer()) {
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printCppName(GV);
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Out << "->setInitializer(";
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//if (!isa<GlobalValue(GV->getInitializer()))
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//else
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Out << getCppName(GV->getInitializer()) << ");\n";
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}
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}
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bool
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CppWriter::isOnStack(const Type* Ty) const {
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TypeList::const_iterator TI =
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@ -417,8 +451,8 @@ CppWriter::printTypeDefInternal(const Type* Ty) {
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if (I == UnresolvedTypes.end()) {
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Out << "PATypeHolder " << typeName << "_fwd = OpaqueType::get();\n";
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UnresolvedTypes[Ty] = typeName;
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return true;
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}
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return true;
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}
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// Avoid printing things we have already printed. Since TNI was obtained
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@ -533,6 +567,24 @@ CppWriter::printTypeDefInternal(const Type* Ty) {
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void
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CppWriter::printTypes(const Module* M) {
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// Walk the symbol table and print out all its types
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const SymbolTable& symtab = M->getSymbolTable();
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for (SymbolTable::type_const_iterator TI = symtab.type_begin(),
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TE = symtab.type_end(); TI != TE; ++TI) {
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// For primitive types and types already defined, just add a name
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TypeMap::const_iterator TNI = TypeNames.find(TI->second);
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if (TI->second->isPrimitiveType() || TNI != TypeNames.end()) {
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Out << "mod->addTypeName(\"";
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printEscapedString(TI->first);
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Out << "\", " << getCppName(TI->second) << ");\n";
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// For everything else, define the type
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} else {
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printTypeDef(TI->second);
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}
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}
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// Add all of the global variables to the value table...
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for (Module::const_global_iterator I = TheModule->global_begin(),
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E = TheModule->global_end(); I != E; ++I) {
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@ -559,6 +611,8 @@ CppWriter::printTypes(const Module* M) {
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for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I!=E;
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++I) {
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printTypeDef(I->getType());
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for (unsigned i = 0; i < I->getNumOperands(); ++i)
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printTypeDef(I->getOperand(i)->getType());
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}
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}
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}
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@ -592,9 +646,10 @@ CppWriter::printConstants(const Module* M) {
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// printConstant - Print out a constant pool entry...
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void CppWriter::printConstant(const Constant *CV) {
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// First, if the constant is in the constant list then we've printed it
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// already and we shouldn't reprint it.
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if (ValueNames.find(CV) != ValueNames.end())
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// First, if the constant is actually a GlobalValue (variable or function) or
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// its already in the constant list then we've printed it already and we can
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// just return.
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if (isa<GlobalValue>(CV) || ValueNames.find(CV) != ValueNames.end())
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return;
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const int IndentSize = 2;
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@ -611,23 +666,24 @@ void CppWriter::printConstant(const Constant *CV) {
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return;
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}
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if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV)) {
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Out << "Constant* " << constName << " = ConstantBool::get("
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Out << "ConstantBool* " << constName << " = ConstantBool::get("
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<< (CB == ConstantBool::True ? "true" : "false")
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<< ");";
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} else if (const ConstantSInt *CI = dyn_cast<ConstantSInt>(CV)) {
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Out << "Constant* " << constName << " = ConstantSInt::get("
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Out << "ConstantSInt* " << constName << " = ConstantSInt::get("
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<< typeName << ", " << CI->getValue() << ");";
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} else if (const ConstantUInt *CI = dyn_cast<ConstantUInt>(CV)) {
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Out << "Constant* " << constName << " = ConstantUInt::get("
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Out << "ConstantUInt* " << constName << " = ConstantUInt::get("
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<< typeName << ", " << CI->getValue() << ");";
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} else if (isa<ConstantAggregateZero>(CV)) {
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Out << "Constant* " << constName << " = ConstantAggregateZero::get("
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<< typeName << ");";
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Out << "ConstantAggregateZero* " << constName
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<< " = ConstantAggregateZero::get(" << typeName << ");";
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} else if (isa<ConstantPointerNull>(CV)) {
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Out << "Constant* " << constName << " = ConstanPointerNull::get("
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<< typeName << ");";
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Out << "ConstantPointerNull* " << constName
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<< " = ConstanPointerNull::get(" << typeName << ");";
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} else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
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Out << "ConstantFP::get(" << typeName << ", ";
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Out << "ConstantFP* " << constName << " = ConstantFP::get(" << typeName
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<< ", ";
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// We would like to output the FP constant value in exponential notation,
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// but we cannot do this if doing so will lose precision. Check here to
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// make sure that we only output it in exponential format if we can parse
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@ -639,30 +695,34 @@ void CppWriter::printConstant(const Constant *CV) {
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// "Inf" or NaN, that atof will accept, but the lexer will not. Check that
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// the string matches the "[-+]?[0-9]" regex.
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//
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if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
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if (((StrVal[0] >= '0' && StrVal[0] <= '9') ||
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((StrVal[0] == '-' || StrVal[0] == '+') &&
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(StrVal[1] >= '0' && StrVal[1] <= '9')))
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// Reparse stringized version!
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if (atof(StrVal.c_str()) == CFP->getValue()) {
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Out << StrVal;
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return;
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}
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// Otherwise we could not reparse it to exactly the same value, so we must
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// output the string in hexadecimal format!
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assert(sizeof(double) == sizeof(uint64_t) &&
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"assuming that double is 64 bits!");
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Out << "0x" << utohexstr(DoubleToBits(CFP->getValue())) << ");";
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(StrVal[1] >= '0' && StrVal[1] <= '9'))) &&
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(atof(StrVal.c_str()) == CFP->getValue()))
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{
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Out << StrVal << ");";
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} else {
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// Otherwise we could not reparse it to exactly the same value, so we must
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// output the string in hexadecimal format!
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assert(sizeof(double) == sizeof(uint64_t) &&
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"assuming double is 64 bits!");
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Out << "0x" << utohexstr(DoubleToBits(CFP->getValue())) << ");";
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}
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} else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
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if (CA->isString() && CA->getType()->getElementType() == Type::SByteTy) {
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Out << "Constant* " << constName << " = ConstantArray::get(\"";
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printEscapedString(CA->getAsString());
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Out << "\");";
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} else {
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// Determine if we want null termination or not.
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if (CA->getType()->getNumElements() <= CA->getAsString().length())
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Out << "\", " << CA->getType()->getNumElements();
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else
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Out << "\", 0"; // Indicate that the null terminator should be added.
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Out << ");";
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} else {
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Out << "std::vector<Constant*> " << constName << "_elems;\n";
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unsigned N = CA->getNumOperands();
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for (unsigned i = 0; i < N; ++i) {
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printConstant(CA->getOperand(i));
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printConstant(CA->getOperand(i)); // recurse to print operands
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Out << constName << "_elems.push_back("
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<< getCppName(CA->getOperand(i)) << ");\n";
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}
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@ -690,22 +750,31 @@ void CppWriter::printConstant(const Constant *CV) {
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Out << "Constant* " << constName << " = ConstantPacked::get("
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<< typeName << ", " << constName << "_elems);";
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} else if (isa<UndefValue>(CV)) {
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Out << "Constant* " << constName << " = UndefValue::get("
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Out << "UndefValue* " << constName << " = UndefValue::get("
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<< typeName << ");";
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} else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
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if (CE->getOpcode() == Instruction::GetElementPtr) {
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Out << "std::vector<Constant*> " << constName << "_indices;\n";
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printConstant(CE->getOperand(0));
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for (unsigned i = 1; i < CE->getNumOperands(); ++i ) {
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printConstant(CE->getOperand(i));
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Out << constName << "_indices.push_back("
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<< getCppName(CE->getOperand(i)) << ");\n";
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}
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Out << "Constant* " << constName << " = new GetElementPtrInst("
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<< getCppName(CE->getOperand(0)) << ", " << constName << "_indices";
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Out << "Constant* " << constName
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<< " = ConstantExpr::getGetElementPtr("
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<< getCppName(CE->getOperand(0)) << ", "
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<< constName << "_indices);";
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} else if (CE->getOpcode() == Instruction::Cast) {
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printConstant(CE->getOperand(0));
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Out << "Constant* " << constName << " = ConstantExpr::getCast(";
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Out << getCppName(CE->getOperand(0)) << ", " << getCppName(CE->getType())
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<< ");";
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} else {
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unsigned N = CE->getNumOperands();
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for (unsigned i = 0; i < N; ++i ) {
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printConstant(CE->getOperand(i));
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}
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Out << "Constant* " << constName << " = ConstantExpr::";
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switch (CE->getOpcode()) {
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case Instruction::Add: Out << "getAdd"; break;
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@ -745,17 +814,21 @@ void CppWriter::printConstant(const Constant *CV) {
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}
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void CppWriter::printFunctionHead(const Function* F) {
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Out << "Function* " << getCppName(F) << " = new Function("
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<< getCppName(F->getFunctionType()) << ", " ;
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Out << "\nFunction* " << getCppName(F) << " = new Function(\n"
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<< " /*Type=*/" << getCppName(F->getFunctionType()) << ",\n"
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<< " /*Linkage=*/";
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printLinkageType(F->getLinkage());
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Out << ",\n \"" << F->getName() << "\", mod);\n";
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Out << ",\n /*Name=*/\"";
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printEscapedString(F->getName());
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Out << "\", mod); "
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<< (F->isExternal()? "// (external, no body)" : "") << "\n";
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printCppName(F);
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Out << "->setCallingConv(";
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printCallingConv(F->getCallingConv());
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Out << ");\n";
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if (F->hasSection()) {
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printCppName(F);
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Out << "->setSection(" << F->getSection() << ");\n";
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Out << "->setSection(\"" << F->getSection() << "\");\n";
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}
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if (F->getAlignment()) {
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printCppName(F);
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@ -781,6 +854,7 @@ void CppWriter::printFunctionBody(const Function *F) {
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}
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// Create all the basic blocks
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Out << "\n";
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for (Function::const_iterator BI = F->begin(), BE = F->end();
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BI != BE; ++BI) {
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std::string bbname(getCppName(BI));
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@ -793,10 +867,12 @@ void CppWriter::printFunctionBody(const Function *F) {
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// Output all of its basic blocks... for the function
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for (Function::const_iterator BI = F->begin(), BE = F->end();
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BI != BE; ++BI) {
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std::string bbname(getCppName(BI));
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Out << "\n // Block " << BI->getName() << " (" << bbname << ")\n";
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// Output all of the instructions in the basic block...
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for (BasicBlock::const_iterator I = BI->begin(), E = BI->end();
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I != E; ++I) {
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std::string bbname(getCppName(BI));
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printInstruction(I,bbname);
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}
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}
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@ -838,7 +914,7 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
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Out << " SwitchInst* " << iName << " = new SwitchInst("
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<< getCppName(sw->getOperand(0)) << ", "
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<< getCppName(sw->getOperand(1)) << ", "
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<< sw->getNumCases() << ", " << bbname << ");";
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<< sw->getNumCases() << ", " << bbname << ");\n";
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for (unsigned i = 1; i < sw->getNumCases(); i++ ) {
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Out << " " << iName << "->addCase("
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<< getCppName(sw->getCaseValue(i)) << ", "
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@ -936,7 +1012,7 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
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printEscapedString(mallocI->getName());
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Out << "\", " << bbname << ");";
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if (mallocI->getAlignment())
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Out << "\n " << iName << "->setAlignment("
|
||||
Out << "\n " << iName << "->setAlignment("
|
||||
<< mallocI->getAlignment() << ");";
|
||||
break;
|
||||
}
|
||||
@ -955,25 +1031,26 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
printEscapedString(allocaI->getName());
|
||||
Out << "\", " << bbname << ");";
|
||||
if (allocaI->getAlignment())
|
||||
Out << "\n " << iName << "->setAlignment("
|
||||
Out << "\n " << iName << "->setAlignment("
|
||||
<< allocaI->getAlignment() << ");";
|
||||
break;
|
||||
}
|
||||
case Instruction::Load:{
|
||||
const LoadInst* load = cast<LoadInst>(I);
|
||||
Out << " LoadInst* " << iName << " = new LoadInst("
|
||||
<< getCppName(load->getOperand(0)) << ", " << bbname << ");\n";
|
||||
if (load->isVolatile())
|
||||
Out << "iName->setVolatile(true);";
|
||||
<< getCppName(load->getOperand(0)) << ", \"";
|
||||
printEscapedString(load->getName());
|
||||
Out << "\", " << (load->isVolatile() ? "true" : "false" )
|
||||
<< ", " << bbname << ");\n";
|
||||
break;
|
||||
}
|
||||
case Instruction::Store: {
|
||||
const StoreInst* store = cast<StoreInst>(I);
|
||||
Out << " StoreInst* " << iName << " = new StoreInst("
|
||||
<< getCppName(store->getOperand(0)) << ", "
|
||||
<< getCppName(store->getOperand(1)) << ", " << bbname << ");\n";
|
||||
if (store->isVolatile())
|
||||
Out << "iName->setVolatile(true);";
|
||||
<< getCppName(store->getOperand(1)) << ", "
|
||||
<< (store->isVolatile() ? "true" : "false")
|
||||
<< ", " << bbname << ");\n";
|
||||
break;
|
||||
}
|
||||
case Instruction::GetElementPtr: {
|
||||
@ -1000,14 +1077,16 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
}
|
||||
case Instruction::PHI: {
|
||||
const PHINode* phi = cast<PHINode>(I);
|
||||
|
||||
Out << " PHINode* " << iName << " = new PHINode("
|
||||
<< getCppName(phi->getType()) << ", \"";
|
||||
printEscapedString(phi->getName());
|
||||
Out << "\", " << bbname << ");\n";
|
||||
Out << iName << "->reserveOperandSpace(" << phi->getNumIncomingValues()
|
||||
Out << " " << iName << "->reserveOperandSpace("
|
||||
<< phi->getNumIncomingValues()
|
||||
<< ");\n";
|
||||
for (unsigned i = 0; i < phi->getNumIncomingValues(); ++i) {
|
||||
Out << iName << "->addIncomingValue("
|
||||
Out << " " << iName << "->addIncoming("
|
||||
<< getCppName(phi->getIncomingValue(i)) << ", "
|
||||
<< getCppName(phi->getIncomingBlock(i)) << ");\n";
|
||||
}
|
||||
@ -1024,6 +1103,13 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
}
|
||||
case Instruction::Call:{
|
||||
const CallInst* call = cast<CallInst>(I);
|
||||
if (InlineAsm* ila = dyn_cast<InlineAsm>(call->getOperand(0))) {
|
||||
Out << " InlineAsm* " << getCppName(ila) << " = InlineAsm::get("
|
||||
<< getCppName(ila->getFunctionType()) << ", \""
|
||||
<< ila->getAsmString() << "\", \""
|
||||
<< ila->getConstraintString() << "\","
|
||||
<< (ila->hasSideEffects() ? "true" : "false") << ");\n";
|
||||
}
|
||||
if (call->getNumOperands() > 3) {
|
||||
Out << " std::vector<Value*> " << iName << "_params;\n";
|
||||
for (unsigned i = 1; i < call->getNumOperands(); ++i) {
|
||||
@ -1048,10 +1134,11 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
}
|
||||
printEscapedString(call->getName());
|
||||
Out << "\", " << bbname << ");\n";
|
||||
Out << iName << "->setCallingConv(";
|
||||
Out << " " << iName << "->setCallingConv(";
|
||||
printCallingConv(call->getCallingConv());
|
||||
Out << ");\n";
|
||||
Out << iName << "->setTailCall(" << (call->isTailCall() ? "true":"false");
|
||||
Out << " " << iName << "->setTailCall("
|
||||
<< (call->isTailCall() ? "true":"false");
|
||||
Out << ");";
|
||||
break;
|
||||
}
|
||||
@ -1094,7 +1181,7 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
Out << " InsertElementInst* " << getCppName(iei)
|
||||
<< " = new InsertElementInst(" << getCppName(iei->getOperand(0))
|
||||
<< ", " << getCppName(iei->getOperand(1)) << ", "
|
||||
<< ", " << getCppName(iei->getOperand(2)) << ", \"";
|
||||
<< getCppName(iei->getOperand(2)) << ", \"";
|
||||
printEscapedString(iei->getName());
|
||||
Out << "\", " << bbname << ");\n";
|
||||
break;
|
||||
@ -1104,7 +1191,7 @@ CppWriter::printInstruction(const Instruction *I, const std::string& bbname)
|
||||
Out << " ShuffleVectorInst* " << getCppName(svi)
|
||||
<< " = new ShuffleVectorInst(" << getCppName(svi->getOperand(0))
|
||||
<< ", " << getCppName(svi->getOperand(1)) << ", "
|
||||
<< ", " << getCppName(svi->getOperand(2)) << ", \"";
|
||||
<< getCppName(svi->getOperand(2)) << ", \"";
|
||||
printEscapedString(svi->getName());
|
||||
Out << "\", " << bbname << ");\n";
|
||||
break;
|
||||
@ -1126,6 +1213,7 @@ void WriteModuleToCppFile(Module* mod, std::ostream& o) {
|
||||
o << "#include <llvm/CallingConv.h>\n";
|
||||
o << "#include <llvm/BasicBlock.h>\n";
|
||||
o << "#include <llvm/Instructions.h>\n";
|
||||
o << "#include <llvm/InlineAsm.h>\n";
|
||||
o << "#include <llvm/Pass.h>\n";
|
||||
o << "#include <llvm/PassManager.h>\n";
|
||||
o << "#include <llvm/Analysis/Verifier.h>\n";
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user