PASS_EMIT_INSTRUCTIONS = 1
} pass;
- std::string FDOutErr;
- tool_output_file *FDOut;
- formatted_raw_ostream Out;
Mangler *Mang;
LoopInfo *LI;
const Module *TheModule;
unit(unit),
ctx(unit),
regTranslator(ctx),
- FDOut(new llvm::tool_output_file("-", FDOutErr, 0)),
- Out(FDOut->os()),
Mang(0), LI(0),
TheModule(0), MOFI(0), TD(0),
OpaqueCounter(0), NextAnonValueNumber(0)
LI = &getAnalysis<LoopInfo>();
- // Output all floating point constants that cannot be printed accurately.
- printFloatingPointConstants(F);
-
emitFunction(F);
return false;
}
virtual bool doFinalization(Module &M) {
- // Free memory...
delete TD;
delete Mang;
delete MOFI;
ByValParams.clear();
intrinsicPrototypesAlreadyGenerated.clear();
UnnamedStructIDs.clear();
- FDOut->keep();
return false;
}
- raw_ostream &printType(raw_ostream &Out, Type *Ty,
- bool isSigned = false,
- const std::string &VariableName = "",
- bool IgnoreName = false,
- const AttrListPtr &PAL = AttrListPtr());
- raw_ostream &printSimpleType(raw_ostream &Out, Type *Ty,
- bool isSigned,
- const std::string &NameSoFar = "");
-
- void printStructReturnPointerFunctionType(raw_ostream &Out,
- const AttrListPtr &PAL,
- PointerType *Ty);
-
- std::string getStructName(StructType *ST);
-
- /// writeOperandDeref - Print the result of dereferencing the specified
- /// operand with '*'. This is equivalent to printing '*' then using
- /// writeOperand, but avoids excess syntax in some cases.
- void writeOperandDeref(Value *Operand) {
- if (isAddressExposed(Operand)) {
- // Already something with an address exposed.
- writeOperandInternal(Operand);
- } else {
- Out << "*(";
- writeOperand(Operand);
- Out << ")";
- }
- }
-
- void writeOperand(Value *Operand, bool Static = false);
- void writeInstComputationInline(Instruction &I);
- void writeOperandInternal(Value *Operand, bool Static = false);
-
- /// Prints the definition of the intrinsic function F. Supports the
- /// intrinsics which need to be explicitly defined in the CBackend.
- void printIntrinsicDefinition(const Function &F, raw_ostream &Out);
-
- void printContainedStructs(Type *Ty, SmallPtrSet<Type *, 16> &);
- void printFloatingPointConstants(Function &F);
- void printFloatingPointConstants(const Constant *C);
-
/*! Emit the complete function code and declaration */
void emitFunction(Function &F);
/*! Handle input and output function parameters */
ir::ImmediateIndex newImmediate(Constant *CPV);
/*! Insert a new label index when this is a scalar value */
INLINE void newLabelIndex(const Value *value);
-
- void printBasicBlock(BasicBlock *BB);
-
- void printCast(unsigned opcode, Type *SrcTy, Type *DstTy);
- void printConstant(Constant *CPV, bool Static);
- void printConstantWithCast(Constant *CPV, unsigned Opcode);
- bool printConstExprCast(const ConstantExpr *CE, bool Static);
- void printConstantArray(ConstantArray *CPA, bool Static);
- void printConstantVector(ConstantVector *CV, bool Static);
-
- /// isAddressExposed - Return true if the specified value's name needs to
- /// have its address taken in order to get a C value of the correct type.
- /// This happens for global variables, byval parameters, and direct allocas.
- bool isAddressExposed(const Value *V) const {
- if (const Argument *A = dyn_cast<Argument>(V))
- return ByValParams.count(A);
- return isa<GlobalVariable>(V) || isDirectAlloca(V);
- }
-
- // isInlinableInst - Attempt to inline instructions into their uses to build
- // trees as much as possible. To do this, we have to consistently decide
- // what is acceptable to inline, so that variable declarations don't get
- // printed and an extra copy of the expr is not emitted.
- //
- static bool isInlinableInst(const Instruction &I) {
- // Always inline cmp instructions, even if they are shared by multiple
- // expressions. GCC generates horrible code if we don't.
- if (isa<CmpInst>(I))
- return true;
-
- // Must be an expression, must be used exactly once. If it is dead, we
- // emit it inline where it would go.
- if (I.getType() == Type::getVoidTy(I.getContext()) || !I.hasOneUse() ||
- isa<TerminatorInst>(I) || isa<CallInst>(I) || isa<PHINode>(I) ||
- isa<LoadInst>(I) || isa<VAArgInst>(I) || isa<InsertElementInst>(I) ||
- isa<InsertValueInst>(I))
- // Don't inline a load across a store or other bad things!
- return false;
-
- // Must not be used in inline asm, extractelement, or shufflevector.
- if (I.hasOneUse()) {
- const Instruction &User = cast<Instruction>(*I.use_back());
- if (isInlineAsm(User) || isa<ExtractElementInst>(User) ||
- isa<ShuffleVectorInst>(User))
- return false;
- }
-
- // Only inline instruction it if it's use is in the same BB as the inst.
- return I.getParent() == cast<Instruction>(I.use_back())->getParent();
- }
-
- // isDirectAlloca - Define fixed sized allocas in the entry block as direct
- // variables which are accessed with the & operator. This causes GCC to
- // generate significantly better code than to emit alloca calls directly.
- //
- static const AllocaInst *isDirectAlloca(const Value *V) {
- const AllocaInst *AI = dyn_cast<AllocaInst>(V);
- if (!AI) return 0;
- if (AI->isArrayAllocation())
- return 0; // FIXME: we can also inline fixed size array allocas!
- if (AI->getParent() != &AI->getParent()->getParent()->getEntryBlock())
- return 0;
- return AI;
- }
-
- // isInlineAsm - Check if the instruction is a call to an inline asm chunk.
- static bool isInlineAsm(const Instruction& I) {
- if (const CallInst *CI = dyn_cast<CallInst>(&I))
- return isa<InlineAsm>(CI->getCalledValue());
- return false;
- }
-
/*! Helper function to emit loads and stores */
template <bool isLoad, typename T> void emitLoadOrStore(T &I);
DECL_VISIT_FN(LoadInst, LoadInst);
DECL_VISIT_FN(StoreInst, StoreInst);
DECL_VISIT_FN(CallInst, CallInst);
-
#undef DECL_VISIT_FN
// Must be implemented later
void visitIndirectBrInst(IndirectBrInst &I) {NOT_SUPPORTED;}
void visitUnreachableInst(UnreachableInst &I) {NOT_SUPPORTED;}
void visitGetElementPtrInst(GetElementPtrInst &I) {NOT_SUPPORTED;}
-
-
- void visitAllocaInst(AllocaInst &I);
+ void visitAllocaInst(AllocaInst &I) {NOT_SUPPORTED;}
template <bool isLoad, typename T> void visitLoadOrStore(T &I);
-
- void visitInstruction(Instruction &I) {
-#ifndef NDEBUG
- errs() << "C Writer does not know about " << I;
-#endif
- llvm_unreachable(0);
- }
-
- void outputLValue(Instruction *I) {
- Out << " " << GetValueName(I) << " = ";
- }
-
- bool isGotoCodeNecessary(BasicBlock *From, BasicBlock *To);
- void printPHICopiesForSuccessor(BasicBlock *CurBlock,
- BasicBlock *Successor, unsigned Indent);
- void printBranchToBlock(BasicBlock *CurBlock, BasicBlock *SuccBlock,
- unsigned Indent);
-
- std::string GetValueName(const Value *Operand);
+ void visitInstruction(Instruction &I) {NOT_SUPPORTED;}
};
-char GenWriter::ID = 0;
-#define PRINT_CODE 1
-
-static std::string CBEMangle(const std::string &S) {
- std::string Result;
-
- for (unsigned i = 0, e = S.size(); i != e; ++i)
- if (isalnum(S[i]) || S[i] == '_') {
- Result += S[i];
- } else {
- Result += '_';
- Result += 'A'+(S[i]&15);
- Result += 'A'+((S[i]>>4)&15);
- Result += '_';
- }
- return Result;
-}
-
- std::string GenWriter::getStructName(StructType *ST) {
- if (!ST->isLiteral() && !ST->getName().empty())
- return CBEMangle("l_"+ST->getName().str());
- return "l_unnamed_" + utostr(UnnamedStructIDs[ST]);
- }
-
-
- /// printStructReturnPointerFunctionType - This is like printType for a struct
- /// return type, except, instead of printing the type as void (*)(Struct*, ...)
- /// print it as "Struct (*)(...)", for struct return functions.
- void GenWriter::printStructReturnPointerFunctionType(raw_ostream &Out,
- const AttrListPtr &PAL,
- PointerType *TheTy) {
- FunctionType *FTy = cast<FunctionType>(TheTy->getElementType());
- std::string tstr;
- raw_string_ostream FunctionInnards(tstr);
- FunctionInnards << " (*) (";
- bool PrintedType = false;
-
- FunctionType::param_iterator I = FTy->param_begin(), E = FTy->param_end();
- Type *RetTy = cast<PointerType>(*I)->getElementType();
- unsigned Idx = 1;
- for (++I, ++Idx; I != E; ++I, ++Idx) {
- if (PrintedType)
- FunctionInnards << ", ";
- Type *ArgTy = *I;
- if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
- assert(ArgTy->isPointerTy());
- ArgTy = cast<PointerType>(ArgTy)->getElementType();
- }
- printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
- PrintedType = true;
- }
- if (FTy->isVarArg()) {
- if (!PrintedType)
- FunctionInnards << " int"; //dummy argument for empty vararg functs
- FunctionInnards << ", ...";
- } else if (!PrintedType) {
- FunctionInnards << "void";
- }
- FunctionInnards << ')';
- printType(Out, RetTy,
- /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), FunctionInnards.str());
- }
-
- raw_ostream &
- GenWriter::printSimpleType(raw_ostream &Out, Type *Ty, bool isSigned,
- const std::string &NameSoFar) {
- assert((Ty->isPrimitiveType() || Ty->isIntegerTy() || Ty->isVectorTy()) &&
- "Invalid type for printSimpleType");
- switch (Ty->getTypeID()) {
- case Type::VoidTyID: return Out << "void " << NameSoFar;
- case Type::IntegerTyID: {
- unsigned NumBits = cast<IntegerType>(Ty)->getBitWidth();
- if (NumBits == 1)
- return Out << "bool " << NameSoFar;
- else if (NumBits <= 8)
- return Out << (isSigned?"signed":"unsigned") << " char " << NameSoFar;
- else if (NumBits <= 16)
- return Out << (isSigned?"signed":"unsigned") << " short " << NameSoFar;
- else if (NumBits <= 32)
- return Out << (isSigned?"signed":"unsigned") << " int " << NameSoFar;
- else if (NumBits <= 64)
- return Out << (isSigned?"signed":"unsigned") << " long long "<< NameSoFar;
- else {
- assert(NumBits <= 128 && "Bit widths > 128 not implemented yet");
- return Out << (isSigned?"llvmInt128":"llvmUInt128") << " " << NameSoFar;
- }
- }
- case Type::FloatTyID: return Out << "float " << NameSoFar;
- case Type::DoubleTyID: return Out << "double " << NameSoFar;
- // Lacking emulation of FP80 on PPC, etc., we assume whichever of these is
- // present matches host 'long double'.
- case Type::X86_FP80TyID:
- case Type::PPC_FP128TyID:
- case Type::FP128TyID: return Out << "long double " << NameSoFar;
-
- case Type::X86_MMXTyID:
- return printSimpleType(Out, Type::getInt32Ty(Ty->getContext()), isSigned,
- " __attribute__((vector_size(64))) " + NameSoFar);
-
- case Type::VectorTyID: {
- VectorType *VTy = cast<VectorType>(Ty);
- return printSimpleType(Out, VTy->getElementType(), isSigned,
- " __attribute__((vector_size(" +
- utostr(TD->getTypeAllocSize(VTy)) + " ))) " + NameSoFar);
- }
-
- default:
-#ifndef NDEBUG
- errs() << "Unknown primitive type: " << *Ty << "\n";
-#endif
- llvm_unreachable(0);
- }
- }
-
- // Pass the Type* and the variable name and this prints out the variable
- // declaration.
- //
- raw_ostream &GenWriter::printType(raw_ostream &Out, Type *Ty,
- bool isSigned, const std::string &NameSoFar,
- bool IgnoreName, const AttrListPtr &PAL) {
- if (Ty->isPrimitiveType() || Ty->isIntegerTy() || Ty->isVectorTy()) {
- printSimpleType(Out, Ty, isSigned, NameSoFar);
- return Out;
- }
-
- switch (Ty->getTypeID()) {
- case Type::FunctionTyID: {
- FunctionType *FTy = cast<FunctionType>(Ty);
- std::string tstr;
- raw_string_ostream FunctionInnards(tstr);
- FunctionInnards << " (" << NameSoFar << ") (";
- unsigned Idx = 1;
- for (FunctionType::param_iterator I = FTy->param_begin(),
- E = FTy->param_end(); I != E; ++I) {
- Type *ArgTy = *I;
- if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
- assert(ArgTy->isPointerTy());
- ArgTy = cast<PointerType>(ArgTy)->getElementType();
- }
- if (I != FTy->param_begin())
- FunctionInnards << ", ";
- printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
- ++Idx;
- }
- if (FTy->isVarArg()) {
- if (!FTy->getNumParams())
- FunctionInnards << " int"; //dummy argument for empty vaarg functs
- FunctionInnards << ", ...";
- } else if (!FTy->getNumParams()) {
- FunctionInnards << "void";
- }
- FunctionInnards << ')';
- printType(Out, FTy->getReturnType(),
- /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), FunctionInnards.str());
- return Out;
- }
- case Type::StructTyID: {
- StructType *STy = cast<StructType>(Ty);
-
- // Check to see if the type is named.
- if (!IgnoreName)
- return Out << getStructName(STy) << ' ' << NameSoFar;
-
- Out << NameSoFar + " {\n";
- unsigned Idx = 0;
- for (StructType::element_iterator I = STy->element_begin(),
- E = STy->element_end(); I != E; ++I) {
- Out << " ";
- printType(Out, *I, false, "field" + utostr(Idx++));
- Out << ";\n";
- }
- Out << '}';
- if (STy->isPacked())
- Out << " __attribute__ ((packed))";
- return Out;
- }
-
- case Type::PointerTyID: {
- PointerType *PTy = cast<PointerType>(Ty);
- std::string ptrName = "*" + NameSoFar;
-
- if (PTy->getElementType()->isArrayTy() ||
- PTy->getElementType()->isVectorTy())
- ptrName = "(" + ptrName + ")";
-
- if (!PAL.isEmpty())
- // Must be a function ptr cast!
- return printType(Out, PTy->getElementType(), false, ptrName, true, PAL);
- return printType(Out, PTy->getElementType(), false, ptrName);
- }
-
- case Type::ArrayTyID: {
- ArrayType *ATy = cast<ArrayType>(Ty);
- unsigned NumElements = ATy->getNumElements();
- if (NumElements == 0) NumElements = 1;
- // Arrays are wrapped in structs to allow them to have normal
- // value semantics (avoiding the array "decay").
- Out << NameSoFar << " { ";
- printType(Out, ATy->getElementType(), false,
- "array[" + utostr(NumElements) + "]");
- return Out << "; }";
- }
-
- default:
- llvm_unreachable("Unhandled case in getTypeProps!");
- }
-
- return Out;
- }
-
- void GenWriter::printConstantArray(ConstantArray *CPA, bool Static) {
-
- // As a special case, print the array as a string if it is an array of
- // ubytes or an array of sbytes with positive values.
- //
- Type *ETy = CPA->getType()->getElementType();
- bool isString = (ETy == Type::getInt8Ty(CPA->getContext()) ||
- ETy == Type::getInt8Ty(CPA->getContext()));
-
- // Make sure the last character is a null char, as automatically added by C
- if (isString && (CPA->getNumOperands() == 0 ||
- !cast<Constant>(*(CPA->op_end()-1))->isNullValue()))
- isString = false;
-
- if (isString) {
- Out << '\"';
- // Keep track of whether the last number was a hexadecimal escape.
- bool LastWasHex = false;
-
- // Do not include the last character, which we know is null
- for (unsigned i = 0, e = CPA->getNumOperands()-1; i != e; ++i) {
- unsigned char C = cast<ConstantInt>(CPA->getOperand(i))->getZExtValue();
-
- // Print it out literally if it is a printable character. The only thing
- // to be careful about is when the last letter output was a hex escape
- // code, in which case we have to be careful not to print out hex digits
- // explicitly (the C compiler thinks it is a continuation of the previous
- // character, sheesh...)
- //
- if (isprint(C) && (!LastWasHex || !isxdigit(C))) {
- LastWasHex = false;
- if (C == '"' || C == '\\')
- Out << "\\" << (char)C;
- else
- Out << (char)C;
- } else {
- LastWasHex = false;
- switch (C) {
- case '\n': Out << "\\n"; break;
- case '\t': Out << "\\t"; break;
- case '\r': Out << "\\r"; break;
- case '\v': Out << "\\v"; break;
- case '\a': Out << "\\a"; break;
- case '\"': Out << "\\\""; break;
- case '\'': Out << "\\\'"; break;
- default:
- Out << "\\x";
- Out << (char)(( C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'));
- Out << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
- LastWasHex = true;
- break;
- }
- }
- }
- Out << '\"';
- } else {
- Out << '{';
- if (CPA->getNumOperands()) {
- Out << ' ';
- printConstant(cast<Constant>(CPA->getOperand(0)), Static);
- for (unsigned i = 1, e = CPA->getNumOperands(); i != e; ++i) {
- Out << ", ";
- printConstant(cast<Constant>(CPA->getOperand(i)), Static);
- }
- }
- Out << " }";
- }
- }
-
- void GenWriter::printConstantVector(ConstantVector *CP, bool Static) {
- Out << '{';
- if (CP->getNumOperands()) {
- Out << ' ';
- printConstant(cast<Constant>(CP->getOperand(0)), Static);
- for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
- Out << ", ";
- printConstant(cast<Constant>(CP->getOperand(i)), Static);
- }
- }
- Out << " }";
- }
-
- // isFPCSafeToPrint - Returns true if we may assume that CFP may be written out
- // textually as a double (rather than as a reference to a stack-allocated
- // variable). We decide this by converting CFP to a string and back into a
- // double, and then checking whether the conversion results in a bit-equal
- // double to the original value of CFP. This depends on us and the target C
- // compiler agreeing on the conversion process (which is pretty likely since we
- // only deal in IEEE FP).
- //
- static bool isFPCSafeToPrint(const ConstantFP *CFP) {
- bool ignored;
- // Do long doubles in hex for now.
- if (CFP->getType() != Type::getFloatTy(CFP->getContext()) &&
- CFP->getType() != Type::getDoubleTy(CFP->getContext()))
- return false;
- APFloat APF = APFloat(CFP->getValueAPF()); // copy
- if (CFP->getType() == Type::getFloatTy(CFP->getContext()))
- APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored);
-#if HAVE_PRINTF_A && ENABLE_CBE_PRINTF_A
- char Buffer[100];
- sprintf(Buffer, "%a", APF.convertToDouble());
- if (!strncmp(Buffer, "0x", 2) ||
- !strncmp(Buffer, "-0x", 3) ||
- !strncmp(Buffer, "+0x", 3))
- return APF.bitwiseIsEqual(APFloat(atof(Buffer)));
- return false;
-#else
- std::string StrVal = ftostr(APF);
-
- while (StrVal[0] == ' ')
- StrVal.erase(StrVal.begin());
-
- // Check to make sure that the stringized number is not some string like "Inf"
- // or NaN. Check that the string matches the "[-+]?[0-9]" regex.
- if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
- ((StrVal[0] == '-' || StrVal[0] == '+') &&
- (StrVal[1] >= '0' && StrVal[1] <= '9')))
- // Reparse stringized version!
- return APF.bitwiseIsEqual(APFloat(atof(StrVal.c_str())));
- return false;
-#endif
- }
-
- /// Print out the casting for a cast operation. This does the double casting
- /// necessary for conversion to the destination type, if necessary.
- /// @brief Print a cast
- void GenWriter::printCast(unsigned opc, Type *SrcTy, Type *DstTy) {
- // Print the destination type cast
- switch (opc) {
- case Instruction::UIToFP:
- case Instruction::SIToFP:
- case Instruction::IntToPtr:
- case Instruction::Trunc:
- case Instruction::BitCast:
- case Instruction::FPExt:
- case Instruction::FPTrunc: // For these the DstTy sign doesn't matter
- Out << '(';
- printType(Out, DstTy);
- Out << ')';
- break;
- case Instruction::ZExt:
- case Instruction::PtrToInt:
- case Instruction::FPToUI: // For these, make sure we get an unsigned dest
- Out << '(';
- printSimpleType(Out, DstTy, false);
- Out << ')';
- break;
- case Instruction::SExt:
- case Instruction::FPToSI: // For these, make sure we get a signed dest
- Out << '(';
- printSimpleType(Out, DstTy, true);
- Out << ')';
- break;
- default:
- llvm_unreachable("Invalid cast opcode");
- }
-
- // Print the source type cast
- switch (opc) {
- case Instruction::UIToFP:
- case Instruction::ZExt:
- Out << '(';
- printSimpleType(Out, SrcTy, false);
- Out << ')';
- break;
- case Instruction::SIToFP:
- case Instruction::SExt:
- Out << '(';
- printSimpleType(Out, SrcTy, true);
- Out << ')';
- break;
- case Instruction::IntToPtr:
- case Instruction::PtrToInt:
- // Avoid "cast to pointer from integer of different size" warnings
- Out << "(unsigned long)";
- break;
- case Instruction::Trunc:
- case Instruction::BitCast:
- case Instruction::FPExt:
- case Instruction::FPTrunc:
- case Instruction::FPToSI:
- case Instruction::FPToUI:
- break; // These don't need a source cast.
- default:
- llvm_unreachable("Invalid cast opcode");
- break;
- }
- }
-
- // printConstant - The LLVM Constant to C Constant converter.
- void GenWriter::printConstant(Constant *CPV, bool Static) {
- if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CPV)) {
- switch (CE->getOpcode()) {
- case Instruction::Trunc:
- case Instruction::ZExt:
- case Instruction::SExt:
- case Instruction::FPTrunc:
- case Instruction::FPExt:
- case Instruction::UIToFP:
- case Instruction::SIToFP:
- case Instruction::FPToUI:
- case Instruction::FPToSI:
- case Instruction::PtrToInt:
- case Instruction::IntToPtr:
- case Instruction::BitCast:
- Out << "(";
- printCast(CE->getOpcode(), CE->getOperand(0)->getType(), CE->getType());
- if (CE->getOpcode() == Instruction::SExt &&
- CE->getOperand(0)->getType() == Type::getInt1Ty(CPV->getContext())) {
- // Make sure we really sext from bool here by subtracting from 0
- Out << "0-";
- }
- printConstant(CE->getOperand(0), Static);
- if (CE->getType() == Type::getInt1Ty(CPV->getContext()) &&
- (CE->getOpcode() == Instruction::Trunc ||
- CE->getOpcode() == Instruction::FPToUI ||
- CE->getOpcode() == Instruction::FPToSI ||
- CE->getOpcode() == Instruction::PtrToInt)) {
- // Make sure we really truncate to bool here by anding with 1
- Out << "&1u";
- }
- Out << ')';
- return;
-
- case Instruction::GetElementPtr:
- Out << "(";
- //printGEPExpression(CE->getOperand(0), gep_type_begin(CPV),
- // gep_type_end(CPV), Static);
- Out << ")";
- return;
- case Instruction::Select:
- Out << '(';
- printConstant(CE->getOperand(0), Static);
- Out << '?';
- printConstant(CE->getOperand(1), Static);
- Out << ':';
- printConstant(CE->getOperand(2), Static);
- Out << ')';
- return;
- case Instruction::Add:
- case Instruction::FAdd:
- case Instruction::Sub:
- case Instruction::FSub:
- case Instruction::Mul:
- case Instruction::FMul:
- case Instruction::SDiv:
- case Instruction::UDiv:
- case Instruction::FDiv:
- case Instruction::URem:
- case Instruction::SRem:
- case Instruction::FRem:
- case Instruction::And:
- case Instruction::Or:
- case Instruction::Xor:
- case Instruction::ICmp:
- case Instruction::Shl:
- case Instruction::LShr:
- case Instruction::AShr:
- {
- Out << '(';
- bool NeedsClosingParens = printConstExprCast(CE, Static);
- printConstantWithCast(CE->getOperand(0), CE->getOpcode());
- switch (CE->getOpcode()) {
- case Instruction::Add:
- case Instruction::FAdd: Out << " + "; break;
- case Instruction::Sub:
- case Instruction::FSub: Out << " - "; break;
- case Instruction::Mul:
- case Instruction::FMul: Out << " * "; break;
- case Instruction::URem:
- case Instruction::SRem:
- case Instruction::FRem: Out << " % "; break;
- case Instruction::UDiv:
- case Instruction::SDiv:
- case Instruction::FDiv: Out << " / "; break;
- case Instruction::And: Out << " & "; break;
- case Instruction::Or: Out << " | "; break;
- case Instruction::Xor: Out << " ^ "; break;
- case Instruction::Shl: Out << " << "; break;
- case Instruction::LShr:
- case Instruction::AShr: Out << " >> "; break;
- case Instruction::ICmp:
- switch (CE->getPredicate()) {
- case ICmpInst::ICMP_EQ: Out << " == "; break;
- case ICmpInst::ICMP_NE: Out << " != "; break;
- case ICmpInst::ICMP_SLT:
- case ICmpInst::ICMP_ULT: Out << " < "; break;
- case ICmpInst::ICMP_SLE:
- case ICmpInst::ICMP_ULE: Out << " <= "; break;
- case ICmpInst::ICMP_SGT:
- case ICmpInst::ICMP_UGT: Out << " > "; break;
- case ICmpInst::ICMP_SGE:
- case ICmpInst::ICMP_UGE: Out << " >= "; break;
- default: llvm_unreachable("Illegal ICmp predicate");
- }
- break;
- default: llvm_unreachable("Illegal opcode here!");
- }
- printConstantWithCast(CE->getOperand(1), CE->getOpcode());
- if (NeedsClosingParens)
- Out << "))";
- Out << ')';
- return;
- }
- case Instruction::FCmp: {
- Out << '(';
- bool NeedsClosingParens = printConstExprCast(CE, Static);
- if (CE->getPredicate() == FCmpInst::FCMP_FALSE)
- Out << "0";
- else if (CE->getPredicate() == FCmpInst::FCMP_TRUE)
- Out << "1";
- else {
- const char* op = 0;
- switch (CE->getPredicate()) {
- default: llvm_unreachable("Illegal FCmp predicate");
- case FCmpInst::FCMP_ORD: op = "ord"; break;
- case FCmpInst::FCMP_UNO: op = "uno"; break;
- case FCmpInst::FCMP_UEQ: op = "ueq"; break;
- case FCmpInst::FCMP_UNE: op = "une"; break;
- case FCmpInst::FCMP_ULT: op = "ult"; break;
- case FCmpInst::FCMP_ULE: op = "ule"; break;
- case FCmpInst::FCMP_UGT: op = "ugt"; break;
- case FCmpInst::FCMP_UGE: op = "uge"; break;
- case FCmpInst::FCMP_OEQ: op = "oeq"; break;
- case FCmpInst::FCMP_ONE: op = "one"; break;
- case FCmpInst::FCMP_OLT: op = "olt"; break;
- case FCmpInst::FCMP_OLE: op = "ole"; break;
- case FCmpInst::FCMP_OGT: op = "ogt"; break;
- case FCmpInst::FCMP_OGE: op = "oge"; break;
- }
- Out << "llvm_fcmp_" << op << "(";
- printConstantWithCast(CE->getOperand(0), CE->getOpcode());
- Out << ", ";
- printConstantWithCast(CE->getOperand(1), CE->getOpcode());
- Out << ")";
- }
- if (NeedsClosingParens)
- Out << "))";
- Out << ')';
- return;
- }
- default:
-#ifndef NDEBUG
- errs() << "GenWriter Error: Unhandled constant expression: "
- << *CE << "\n";
-#endif
- llvm_unreachable(0);
- }
- } else if (isa<UndefValue>(CPV) && CPV->getType()->isSingleValueType()) {
- Out << "((";
- printType(Out, CPV->getType()); // sign doesn't matter
- Out << ")/*UNDEF*/";
- if (!CPV->getType()->isVectorTy()) {
- Out << "0)";
- } else {
- Out << "{})";
- }
- return;
- }
-
- if (ConstantInt *CI = dyn_cast<ConstantInt>(CPV)) {
- Type* Ty = CI->getType();
- if (Ty == Type::getInt1Ty(CPV->getContext()))
- Out << (CI->getZExtValue() ? '1' : '0');
- else if (Ty == Type::getInt32Ty(CPV->getContext()))
- Out << CI->getZExtValue() << 'u';
- else if (Ty->getPrimitiveSizeInBits() > 32)
- Out << CI->getZExtValue() << "ull";
- else {
- Out << "((";
- printSimpleType(Out, Ty, false) << ')';
- if (CI->isMinValue(true))
- Out << CI->getZExtValue() << 'u';
- else
- Out << CI->getSExtValue();
- Out << ')';
- }
- return;
- }
-
- switch (CPV->getType()->getTypeID()) {
- case Type::FloatTyID:
- case Type::DoubleTyID:
- case Type::X86_FP80TyID:
- case Type::PPC_FP128TyID:
- case Type::FP128TyID: {
- ConstantFP *FPC = cast<ConstantFP>(CPV);
- std::map<const ConstantFP*, unsigned>::iterator I = FPConstantMap.find(FPC);
- if (I != FPConstantMap.end()) {
- // Because of FP precision problems we must load from a stack allocated
- // value that holds the value in hex.
- Out << "(*(" << (FPC->getType() == Type::getFloatTy(CPV->getContext()) ?
- "float" :
- FPC->getType() == Type::getDoubleTy(CPV->getContext()) ?
- "double" :
- "long double")
- << "*)&FPConstant" << I->second << ')';
- } else {
- double V;
- if (FPC->getType() == Type::getFloatTy(CPV->getContext()))
- V = FPC->getValueAPF().convertToFloat();
- else if (FPC->getType() == Type::getDoubleTy(CPV->getContext()))
- V = FPC->getValueAPF().convertToDouble();
- else {
- // Long double. Convert the number to double, discarding precision.
- // This is not awesome, but it at least makes the CBE output somewhat
- // useful.
- APFloat Tmp = FPC->getValueAPF();
- bool LosesInfo;
- Tmp.convert(APFloat::IEEEdouble, APFloat::rmTowardZero, &LosesInfo);
- V = Tmp.convertToDouble();
- }
-
- if (IsNAN(V)) {
- // The value is NaN
-
- // FIXME the actual NaN bits should be emitted.
- // The prefix for a quiet NaN is 0x7FF8. For a signalling NaN,
- // it's 0x7ff4.
- const unsigned long QuietNaN = 0x7ff8UL;
- //const unsigned long SignalNaN = 0x7ff4UL;
-
- // We need to grab the first part of the FP #
- char Buffer[100];
-
- uint64_t ll = DoubleToBits(V);
- sprintf(Buffer, "0x%llx", static_cast<long long>(ll));
-
- std::string Num(&Buffer[0], &Buffer[6]);
- unsigned long Val = strtoul(Num.c_str(), 0, 16);
-
- if (FPC->getType() == Type::getFloatTy(FPC->getContext()))
- Out << "LLVM_NAN" << (Val == QuietNaN ? "" : "S") << "F(\""
- << Buffer << "\") /*nan*/ ";
- else
- Out << "LLVM_NAN" << (Val == QuietNaN ? "" : "S") << "(\""
- << Buffer << "\") /*nan*/ ";
- } else if (IsInf(V)) {
- // The value is Inf
- if (V < 0) Out << '-';
- Out << "LLVM_INF" <<
- (FPC->getType() == Type::getFloatTy(FPC->getContext()) ? "F" : "")
- << " /*inf*/ ";
- } else {
- std::string Num;
-#if HAVE_PRINTF_A && ENABLE_CBE_PRINTF_A
- // Print out the constant as a floating point number.
- char Buffer[100];
- sprintf(Buffer, "%a", V);
- Num = Buffer;
-#else
- Num = ftostr(FPC->getValueAPF());
-#endif
- Out << Num;
- }
- }
- break;
- }
-
- case Type::ArrayTyID:
- // Use C99 compound expression literal initializer syntax.
- if (!Static) {
- Out << "(";
- printType(Out, CPV->getType());
- Out << ")";
- }
- Out << "{ "; // Arrays are wrapped in struct types.
- if (ConstantArray *CA = dyn_cast<ConstantArray>(CPV)) {
- printConstantArray(CA, Static);
- } else {
- assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
- ArrayType *AT = cast<ArrayType>(CPV->getType());
- Out << '{';
- if (AT->getNumElements()) {
- Out << ' ';
- Constant *CZ = Constant::getNullValue(AT->getElementType());
- printConstant(CZ, Static);
- for (unsigned i = 1, e = AT->getNumElements(); i != e; ++i) {
- Out << ", ";
- printConstant(CZ, Static);
- }
- }
- Out << " }";
- }
- Out << " }"; // Arrays are wrapped in struct types.
- break;
-
- case Type::VectorTyID:
- // Use C99 compound expression literal initializer syntax.
- if (!Static) {
- Out << "(";
- printType(Out, CPV->getType());
- Out << ")";
- }
- if (ConstantVector *CV = dyn_cast<ConstantVector>(CPV)) {
- printConstantVector(CV, Static);
- } else {
- assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
- VectorType *VT = cast<VectorType>(CPV->getType());
- Out << "{ ";
- Constant *CZ = Constant::getNullValue(VT->getElementType());
- printConstant(CZ, Static);
- for (unsigned i = 1, e = VT->getNumElements(); i != e; ++i) {
- Out << ", ";
- printConstant(CZ, Static);
- }
- Out << " }";
- }
- break;
-
- case Type::StructTyID:
- // Use C99 compound expression literal initializer syntax.
- if (!Static) {
- Out << "(";
- printType(Out, CPV->getType());
- Out << ")";
- }
- if (isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV)) {
- StructType *ST = cast<StructType>(CPV->getType());
- Out << '{';
- if (ST->getNumElements()) {
- Out << ' ';
- printConstant(Constant::getNullValue(ST->getElementType(0)), Static);
- for (unsigned i = 1, e = ST->getNumElements(); i != e; ++i) {
- Out << ", ";
- printConstant(Constant::getNullValue(ST->getElementType(i)), Static);
- }
- }
- Out << " }";
- } else {
- Out << '{';
- if (CPV->getNumOperands()) {
- Out << ' ';
- printConstant(cast<Constant>(CPV->getOperand(0)), Static);
- for (unsigned i = 1, e = CPV->getNumOperands(); i != e; ++i) {
- Out << ", ";
- printConstant(cast<Constant>(CPV->getOperand(i)), Static);
- }
- }
- Out << " }";
- }
- break;
-
- case Type::PointerTyID:
- if (isa<ConstantPointerNull>(CPV)) {
- Out << "((";
- printType(Out, CPV->getType()); // sign doesn't matter
- Out << ")/*NULL*/0)";
- break;
- } else if (GlobalValue *GV = dyn_cast<GlobalValue>(CPV)) {
- writeOperand(GV, Static);
- break;
- }
- // FALL THROUGH
- default:
-#ifndef NDEBUG
- errs() << "Unknown constant type: " << *CPV << "\n";
-#endif
- llvm_unreachable(0);
- }
- }
-
- // Some constant expressions need to be casted back to the original types
- // because their operands were casted to the expected type. This function takes
- // care of detecting that case and printing the cast for the ConstantExpr.
- bool GenWriter::printConstExprCast(const ConstantExpr* CE, bool Static) {
- bool NeedsExplicitCast = false;
- Type *Ty = CE->getOperand(0)->getType();
- bool TypeIsSigned = false;
- switch (CE->getOpcode()) {
- case Instruction::Add:
- case Instruction::Sub:
- case Instruction::Mul:
- // We need to cast integer arithmetic so that it is always performed
- // as unsigned, to avoid undefined behavior on overflow.
- case Instruction::LShr:
- case Instruction::URem:
- case Instruction::UDiv: NeedsExplicitCast = true; break;
- case Instruction::AShr:
- case Instruction::SRem:
- case Instruction::SDiv: NeedsExplicitCast = true; TypeIsSigned = true; break;
- case Instruction::SExt:
- Ty = CE->getType();
- NeedsExplicitCast = true;
- TypeIsSigned = true;
- break;
- case Instruction::ZExt:
- case Instruction::Trunc:
- case Instruction::FPTrunc:
- case Instruction::FPExt:
- case Instruction::UIToFP:
- case Instruction::SIToFP:
- case Instruction::FPToUI:
- case Instruction::FPToSI:
- case Instruction::PtrToInt:
- case Instruction::IntToPtr:
- case Instruction::BitCast:
- Ty = CE->getType();
- NeedsExplicitCast = true;
- break;
- default: break;
- }
- if (NeedsExplicitCast) {
- Out << "((";
- if (Ty->isIntegerTy() && Ty != Type::getInt1Ty(Ty->getContext()))
- printSimpleType(Out, Ty, TypeIsSigned);
- else
- printType(Out, Ty); // not integer, sign doesn't matter
- Out << ")(";
- }
- return NeedsExplicitCast;
- }
-
- // Print a constant assuming that it is the operand for a given Opcode. The
- // opcodes that care about sign need to cast their operands to the expected
- // type before the operation proceeds. This function does the casting.
- void GenWriter::printConstantWithCast(Constant* CPV, unsigned Opcode) {
-
- // Extract the operand's type, we'll need it.
- Type* OpTy = CPV->getType();
-
- // Indicate whether to do the cast or not.
- bool shouldCast = false;
- bool typeIsSigned = false;
-
- // Based on the Opcode for which this Constant is being written, determine
- // the new type to which the operand should be casted by setting the value
- // of OpTy. If we change OpTy, also set shouldCast to true so it gets
- // casted below.
- switch (Opcode) {
- default:
- // for most instructions, it doesn't matter
- break;
- case Instruction::Add:
- case Instruction::Sub:
- case Instruction::Mul:
- // We need to cast integer arithmetic so that it is always performed
- // as unsigned, to avoid undefined behavior on overflow.
- case Instruction::LShr:
- case Instruction::UDiv:
- case Instruction::URem:
- shouldCast = true;
- break;
- case Instruction::AShr:
- case Instruction::SDiv:
- case Instruction::SRem:
- shouldCast = true;
- typeIsSigned = true;
- break;
- }
-
- // Write out the casted constant if we should, otherwise just write the
- // operand.
- if (shouldCast) {
- Out << "((";
- printSimpleType(Out, OpTy, typeIsSigned);
- Out << ")";
- printConstant(CPV, false);
- Out << ")";
- } else
- printConstant(CPV, false);
- }
-
- std::string GenWriter::GetValueName(const Value *Operand) {
-
- // Resolve potential alias.
- if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(Operand)) {
- if (const Value *V = GA->resolveAliasedGlobal(false))
- Operand = V;
- }
-
- // Mangle globals with the standard mangler interface for LLC compatibility.
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(Operand)) {
- SmallString<128> Str;
- Mang->getNameWithPrefix(Str, GV, false);
- return CBEMangle(Str.str().str());
- }
-
- std::string Name = Operand->getName();
-
- if (Name.empty()) { // Assign unique names to local temporaries.
- unsigned &No = AnonValueNumbers[Operand];
- if (No == 0)
- No = ++NextAnonValueNumber;
- Name = "tmp__" + utostr(No);
- }
-
- std::string VarName;
- VarName.reserve(Name.capacity());
-
- for (std::string::iterator I = Name.begin(), E = Name.end();
- I != E; ++I) {
- char ch = *I;
-
- if (!((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
- (ch >= '0' && ch <= '9') || ch == '_')) {
- char buffer[5];
- sprintf(buffer, "_%x_", ch);
- VarName += buffer;
- } else
- VarName += ch;
- }
-
- return "llvm_gen_" + VarName;
- }
-
- /// writeInstComputationInline - Emit the computation for the specified
- /// instruction inline, with no destination provided.
- void GenWriter::writeInstComputationInline(Instruction &I) {
- // We can't currently support integer types other than 1, 8, 16, 32, 64.
- // Validate this.
- Type *Ty = I.getType();
- if (Ty->isIntegerTy() && (Ty!=Type::getInt1Ty(I.getContext()) &&
- Ty!=Type::getInt8Ty(I.getContext()) &&
- Ty!=Type::getInt16Ty(I.getContext()) &&
- Ty!=Type::getInt32Ty(I.getContext()) &&
- Ty!=Type::getInt64Ty(I.getContext()))) {
- report_fatal_error("The C backend does not currently support integer "
- "types of widths other than 1, 8, 16, 32, 64.\n"
- "This is being tracked as PR 4158.");
- }
-
- // If this is a non-trivial bool computation, make sure to truncate down to
- // a 1 bit value. This is important because we want "add i1 x, y" to return
- // "0" when x and y are true, not "2" for example.
- bool NeedBoolTrunc = false;
- if (I.getType() == Type::getInt1Ty(I.getContext()) &&
- !isa<ICmpInst>(I) && !isa<FCmpInst>(I))
- NeedBoolTrunc = true;
-
- if (NeedBoolTrunc)
- Out << "((";
-
- visit(I);
-
- if (NeedBoolTrunc)
- Out << ")&1)";
- }
-
-
- void GenWriter::writeOperandInternal(Value *Operand, bool Static) {
- if (Instruction *I = dyn_cast<Instruction>(Operand))
- // Should we inline this instruction to build a tree?
- if (isInlinableInst(*I) && !isDirectAlloca(I)) {
- Out << '(';
- writeInstComputationInline(*I);
- Out << ')';
- return;
- }
-
- Constant* CPV = dyn_cast<Constant>(Operand);
-
- if (CPV && !isa<GlobalValue>(CPV))
- printConstant(CPV, Static);
- else
- Out << GetValueName(Operand);
- }
-
- void GenWriter::writeOperand(Value *Operand, bool Static) {
- bool isAddressImplicit = isAddressExposed(Operand);
- if (isAddressImplicit)
- Out << "(&"; // Global variables are referenced as their addresses by llvm
-
- writeOperandInternal(Operand, Static);
-
- if (isAddressImplicit)
- Out << ')';
- }
-
- enum SpecialGlobalClass {
- NotSpecial = 0,
- GlobalCtors, GlobalDtors,
- NotPrinted
- };
+ char GenWriter::ID = 0;
bool GenWriter::doInitialization(Module &M) {
FunctionPass::doInitialization(M);
return false;
}
- /// Output all floating point constants that cannot be printed accurately...
- void GenWriter::printFloatingPointConstants(Function &F) {
- // Scan the module for floating point constants. If any FP constant is used
- // in the function, we want to redirect it here so that we do not depend on
- // the precision of the printed form, unless the printed form preserves
- // precision.
- //
- for (constant_iterator I = constant_begin(&F), E = constant_end(&F);
- I != E; ++I)
- printFloatingPointConstants(*I);
-
- Out << '\n';
- }
-
- void GenWriter::printFloatingPointConstants(const Constant *C) {
- // If this is a constant expression, recursively check for constant fp values.
- if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
- for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i)
- printFloatingPointConstants(CE->getOperand(i));
- return;
- }
-
- // Otherwise, check for a FP constant that we need to print.
- const ConstantFP *FPC = dyn_cast<ConstantFP>(C);
- if (FPC == 0 ||
- // Do not put in FPConstantMap if safe.
- isFPCSafeToPrint(FPC) ||
- // Already printed this constant?
- FPConstantMap.count(FPC))
- return;
-
- FPConstantMap[FPC] = FPCounter; // Number the FP constants
-
- if (FPC->getType() == Type::getDoubleTy(FPC->getContext())) {
- double Val = FPC->getValueAPF().convertToDouble();
- uint64_t i = FPC->getValueAPF().bitcastToAPInt().getZExtValue();
- Out << "static const ConstantDoubleTy FPConstant" << FPCounter++
- << " = 0x" << utohexstr(i)
- << "ULL; /* " << Val << " */\n";
- } else if (FPC->getType() == Type::getFloatTy(FPC->getContext())) {
- float Val = FPC->getValueAPF().convertToFloat();
- uint32_t i = (uint32_t)FPC->getValueAPF().bitcastToAPInt().
- getZExtValue();
- Out << "static const ConstantFloatTy FPConstant" << FPCounter++
- << " = 0x" << utohexstr(i)
- << "U; /* " << Val << " */\n";
- } else if (FPC->getType() == Type::getX86_FP80Ty(FPC->getContext())) {
- // api needed to prevent premature destruction
- APInt api = FPC->getValueAPF().bitcastToAPInt();
- const uint64_t *p = api.getRawData();
- Out << "static const ConstantFP80Ty FPConstant" << FPCounter++
- << " = { 0x" << utohexstr(p[0])
- << "ULL, 0x" << utohexstr((uint16_t)p[1]) << ",{0,0,0}"
- << "}; /* Long double constant */\n";
- } else if (FPC->getType() == Type::getPPC_FP128Ty(FPC->getContext()) ||
- FPC->getType() == Type::getFP128Ty(FPC->getContext())) {
- APInt api = FPC->getValueAPF().bitcastToAPInt();
- const uint64_t *p = api.getRawData();
- Out << "static const ConstantFP128Ty FPConstant" << FPCounter++
- << " = { 0x"
- << utohexstr(p[0]) << ", 0x" << utohexstr(p[1])
- << "}; /* Long double constant */\n";
-
- } else {
- llvm_unreachable("Unknown float type!");
- }
- }
-
- // Push the struct onto the stack and recursively push all structs
- // this one depends on.
- //
- // TODO: Make this work properly with vector types
- //
- void GenWriter::printContainedStructs(Type *Ty,
- SmallPtrSet<Type *, 16> &StructPrinted) {
- // Don't walk through pointers.
- if (Ty->isPointerTy() || Ty->isPrimitiveType() || Ty->isIntegerTy())
- return;
-
- // Print all contained types first.
- for (Type::subtype_iterator I = Ty->subtype_begin(),
- E = Ty->subtype_end(); I != E; ++I)
- printContainedStructs(*I, StructPrinted);
-
- if (StructType *ST = dyn_cast<StructType>(Ty)) {
- // Check to see if we have already printed this struct.
- if (!StructPrinted.insert(Ty)) return;
-
- // Print structure type out.
- printType(Out, ST, false, getStructName(ST), true);
- Out << ";\n\n";
- }
- }
-
ir::ImmediateIndex GenWriter::newImmediate(Constant *CPV) {
if (dyn_cast<ConstantExpr>(CPV))
GBE_ASSERTM(false, "Unsupported constant expression");
void GenWriter::emitFunction(Function &F)
{
- ctx.startFunction(GetValueName(&F));
+ ctx.startFunction(F.getName());
this->regTranslator.clear();
this->labelMap.clear();
this->emitFunctionPrototype(F);
ctx.endFunction();
}
- void GenWriter::printBasicBlock(BasicBlock *BB) {
-
- // Don't print the label for the basic block if there are no uses, or if
- // the only terminator use is the predecessor basic block's terminator.
- // We have to scan the use list because PHI nodes use basic blocks too but
- // do not require a label to be generated.
- //
- bool NeedsLabel = false;
- for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI)
- if (isGotoCodeNecessary(*PI, BB)) {
- NeedsLabel = true;
- break;
- }
-
- if (NeedsLabel) Out << GetValueName(BB) << ":\n";
-
- // Output all of the instructions in the basic block...
- for (BasicBlock::iterator II = BB->begin(), E = --BB->end(); II != E;
- ++II) {
- if (!isInlinableInst(*II) && !isDirectAlloca(II)) {
- if (II->getType() != Type::getVoidTy(BB->getContext()) &&
- !isInlineAsm(*II))
- outputLValue(II);
- else
- Out << " ";
- writeInstComputationInline(*II);
- Out << ";\n";
- }
- }
-
- // Don't emit prefix or suffix for the terminator.
- visit(*BB->getTerminator());
- }
-
void GenWriter::regAllocateReturnInst(ReturnInst &I) {}
void GenWriter::emitReturnInst(ReturnInst &I) {
ctx.RET();
}
- bool GenWriter::isGotoCodeNecessary(BasicBlock *From, BasicBlock *To) {
- /// FIXME: This should be reenabled, but loop reordering safe!!
- return true;
-
- if (llvm::next(Function::iterator(From)) != Function::iterator(To))
- return true; // Not the direct successor, we need a goto.
-
- //isa<SwitchInst>(From->getTerminator())
-
- if (LI->getLoopFor(From) != LI->getLoopFor(To))
- return true;
- return false;
- }
-
- void GenWriter::regAllocateBinaryOperator(Instruction &I)
- {
+ void GenWriter::regAllocateBinaryOperator(Instruction &I) {
this->newRegister(&I);
}
- void GenWriter::emitBinaryOperator(Instruction &I)
- {
+ void GenWriter::emitBinaryOperator(Instruction &I) {
GBE_ASSERT(I.getType()->isPointerTy() == false);
// Get the element type for a vector
case Instruction::And: ctx.AND(type, dst, src0, src1); break;
case Instruction::Or: ctx.OR(type, dst, src0, src1); break;
case Instruction::Xor: ctx.XOR(type, dst, src0, src1); break;
- case Instruction::Shl : ctx.SHL(type, dst, src0, src1); break;
+ case Instruction::Shl: ctx.SHL(type, dst, src0, src1); break;
case Instruction::LShr: ctx.SHR(type, dst, src0, src1); break;
case Instruction::AShr: ctx.ASR(type, dst, src0, src1); break;
- default:
- GBE_ASSERT(0);
+ default: NOT_SUPPORTED;
};
}
}
-#if 0
- void GenWriter::visitICmpInst(ICmpInst &I) {
- // We must cast the results of icmp which might be promoted.
- bool needsCast = false;
-
- // Write out the cast of the instruction's value back to the proper type
- // if necessary.
- bool NeedsClosingParens = writeInstructionCast(I);
-
- // Certain icmp predicate require the operand to be forced to a specific type
- // so we use writeOperandWithCast here instead of writeOperand. Similarly
- // below for operand 1
- writeOperandWithCast(I.getOperand(0), I);
-
- switch (I.getPredicate()) {
- case ICmpInst::ICMP_EQ: Out << " == "; break;
- case ICmpInst::ICMP_NE: Out << " != "; break;
- case ICmpInst::ICMP_ULE:
- case ICmpInst::ICMP_SLE: Out << " <= "; break;
- case ICmpInst::ICMP_UGE:
- case ICmpInst::ICMP_SGE: Out << " >= "; break;
- case ICmpInst::ICMP_ULT:
- case ICmpInst::ICMP_SLT: Out << " < "; break;
- case ICmpInst::ICMP_UGT:
- case ICmpInst::ICMP_SGT: Out << " > "; break;
- default:
-#ifndef NDEBUG
- errs() << "Invalid icmp predicate!" << I;
-#endif
- llvm_unreachable(0);
- }
-
- writeOperandWithCast(I.getOperand(1), I);
- if (NeedsClosingParens)
- Out << "))";
-
- if (needsCast) {
- Out << "))";
- }
- }
-
- void GenWriter::visitFCmpInst(FCmpInst &I) {
- if (I.getPredicate() == FCmpInst::FCMP_FALSE) {
- Out << "0";
- return;
- }
- if (I.getPredicate() == FCmpInst::FCMP_TRUE) {
- Out << "1";
- return;
- }
-
- const char* op = 0;
- switch (I.getPredicate()) {
- default: llvm_unreachable("Illegal FCmp predicate");
- case FCmpInst::FCMP_ORD: op = "ord"; break;
- case FCmpInst::FCMP_UNO: op = "uno"; break;
- case FCmpInst::FCMP_UEQ: op = "ueq"; break;
- case FCmpInst::FCMP_UNE: op = "une"; break;
- case FCmpInst::FCMP_ULT: op = "ult"; break;
- case FCmpInst::FCMP_ULE: op = "ule"; break;
- case FCmpInst::FCMP_UGT: op = "ugt"; break;
- case FCmpInst::FCMP_UGE: op = "uge"; break;
- case FCmpInst::FCMP_OEQ: op = "oeq"; break;
- case FCmpInst::FCMP_ONE: op = "one"; break;
- case FCmpInst::FCMP_OLT: op = "olt"; break;
- case FCmpInst::FCMP_OLE: op = "ole"; break;
- case FCmpInst::FCMP_OGT: op = "ogt"; break;
- case FCmpInst::FCMP_OGE: op = "oge"; break;
- }
-
- Out << "llvm_fcmp_" << op << "(";
- // Write the first operand
- writeOperand(I.getOperand(0));
- Out << ", ";
- // Write the second operand
- writeOperand(I.getOperand(1));
- Out << ")";
- }
-#endif
-
void GenWriter::regAllocateCastInst(CastInst &I)
{
if (I.getOpcode() == Instruction::PtrToInt ||
NOT_SUPPORTED;
}
- void GenWriter::emitCastInst(CastInst &I)
- {
+ void GenWriter::emitCastInst(CastInst &I) {
if (I.getOpcode() == Instruction::PtrToInt ||
I.getOpcode() == Instruction::IntToPtr) {
Value *srcValue = &I;
}
#endif
- void GenWriter::printIntrinsicDefinition(const Function &F, raw_ostream &Out) {
-#ifndef NDEBUG
- FunctionType *funT = F.getFunctionType();
- Type *retT = F.getReturnType();
- IntegerType *elemT = cast<IntegerType>(funT->getParamType(1));
-
- assert(isSupportedIntegerSize(*elemT) &&
- "CBackend does not support arbitrary size integers.");
- assert(cast<StructType>(retT)->getElementType(0) == elemT &&
- elemT == funT->getParamType(0) && funT->getNumParams() == 2);
-
- switch (F.getIntrinsicID()) {
- default:
- llvm_unreachable("Unsupported Intrinsic.");
- }
-#endif
- }
-
void GenWriter::emitCallInst(CallInst &I) {}
void GenWriter::regAllocateCallInst(CallInst &I) {
Value *dst = &I;
regTranslator.newScalarProxy(ir::ocl::lid2, dst);
}
- void GenWriter::visitAllocaInst(AllocaInst &I) {
- Out << '(';
- printType(Out, I.getType());
- Out << ") alloca(sizeof(";
- printType(Out, I.getType()->getElementType());
- Out << ')';
- if (I.isArrayAllocation()) {
- Out << " * " ;
- writeOperand(I.getOperand(0));
- }
- Out << ')';
- }
-
static INLINE ir::MemorySpace addressSpaceLLVMToGen(unsigned llvmMemSpace) {
switch (llvmMemSpace) {
case 0: return ir::MEM_GLOBAL;
llvm::FunctionPass *createGenPass(ir::Unit &unit) {
return new GenWriter(unit);
}
-
} /* namespace gbe */
projects / contrib / beignet.git / commitdiff