#include "llvm/Target/TargetData.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/CFG.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/InstVisitor.h"
#include "llvm/Support/Mangler.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/MathExtras.h"
#include <sstream>
using namespace llvm;
+/// CBackendTargetMachineModule - Note that this is used on hosts that
+/// cannot link in a library unless there are references into the
+/// library. In particular, it seems that it is not possible to get
+/// things to work on Win32 without this. Though it is unused, do not
+/// remove it.
+extern "C" int CBackendTargetMachineModule;
+int CBackendTargetMachineModule = 0;
+
// Register the target.
-static RegisterTarget<CTargetMachine> X("c", " C backend");
+static RegisterTarget<CTargetMachine> X("c", "C backend");
+
+// Force static initialization.
+extern "C" void LLVMInitializeCBackendTarget() { }
namespace {
/// CBackendNameAllUsedStructsAndMergeFunctions - This pass inserts names for
public:
static char ID;
CBackendNameAllUsedStructsAndMergeFunctions()
- : ModulePass((intptr_t)&ID) {}
+ : ModulePass(&ID) {}
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<FindUsedTypes>();
}
/// CWriter - This class is the main chunk of code that converts an LLVM
/// module to a C translation unit.
class CWriter : public FunctionPass, public InstVisitor<CWriter> {
- std::ostream &Out;
+ raw_ostream &Out;
IntrinsicLowering *IL;
Mangler *Mang;
LoopInfo *LI;
std::map<const ConstantFP *, unsigned> FPConstantMap;
std::set<Function*> intrinsicPrototypesAlreadyGenerated;
std::set<const Argument*> ByValParams;
+ unsigned FPCounter;
+ unsigned OpaqueCounter;
+ DenseMap<const Value*, unsigned> AnonValueNumbers;
+ unsigned NextAnonValueNumber;
public:
static char ID;
- explicit CWriter(std::ostream &o)
- : FunctionPass((intptr_t)&ID), Out(o), IL(0), Mang(0), LI(0),
- TheModule(0), TAsm(0), TD(0) {}
+ explicit CWriter(raw_ostream &o)
+ : FunctionPass(&ID), Out(o), IL(0), Mang(0), LI(0),
+ TheModule(0), TAsm(0), TD(0), OpaqueCounter(0), NextAnonValueNumber(0) {
+ FPCounter = 0;
+ }
virtual const char *getPassName() const { return "C backend"; }
virtual bool doInitialization(Module &M);
bool runOnFunction(Function &F) {
+ // Do not codegen any 'available_externally' functions at all, they have
+ // definitions outside the translation unit.
+ if (F.hasAvailableExternallyLinkage())
+ return false;
+
LI = &getAnalysis<LoopInfo>();
// Get rid of intrinsics we can't handle.
virtual bool doFinalization(Module &M) {
// Free memory...
+ delete IL;
+ delete TD;
delete Mang;
FPConstantMap.clear();
TypeNames.clear();
return false;
}
- std::ostream &printType(std::ostream &Out, const Type *Ty,
+ raw_ostream &printType(raw_ostream &Out, const Type *Ty,
bool isSigned = false,
const std::string &VariableName = "",
bool IgnoreName = false,
- const PAListPtr &PAL = PAListPtr());
- std::ostream &printSimpleType(std::ostream &Out, const Type *Ty,
+ const AttrListPtr &PAL = AttrListPtr());
+ std::ostream &printType(std::ostream &Out, const Type *Ty,
+ bool isSigned = false,
+ const std::string &VariableName = "",
+ bool IgnoreName = false,
+ const AttrListPtr &PAL = AttrListPtr());
+ raw_ostream &printSimpleType(raw_ostream &Out, const Type *Ty,
bool isSigned,
const std::string &NameSoFar = "");
+ std::ostream &printSimpleType(std::ostream &Out, const Type *Ty,
+ bool isSigned,
+ const std::string &NameSoFar = "");
- void printStructReturnPointerFunctionType(std::ostream &Out,
- const PAListPtr &PAL,
+ void printStructReturnPointerFunctionType(raw_ostream &Out,
+ const AttrListPtr &PAL,
const PointerType *Ty);
/// writeOperandDeref - Print the result of dereferencing the specified
}
}
- void writeOperand(Value *Operand);
- void writeOperandRaw(Value *Operand);
- void writeOperandInternal(Value *Operand);
+ void writeOperand(Value *Operand, bool Static = false);
+ void writeInstComputationInline(Instruction &I);
+ void writeOperandInternal(Value *Operand, bool Static = false);
void writeOperandWithCast(Value* Operand, unsigned Opcode);
void writeOperandWithCast(Value* Operand, const ICmpInst &I);
bool writeInstructionCast(const Instruction &I);
void printModule(Module *M);
void printModuleTypes(const TypeSymbolTable &ST);
- void printContainedStructs(const Type *Ty, std::set<const StructType *> &);
+ void printContainedStructs(const Type *Ty, std::set<const Type *> &);
void printFloatingPointConstants(Function &F);
+ void printFloatingPointConstants(const Constant *C);
void printFunctionSignature(const Function *F, bool Prototype);
void printFunction(Function &);
void printLoop(Loop *L);
void printCast(unsigned opcode, const Type *SrcTy, const Type *DstTy);
- void printConstant(Constant *CPV);
+ void printConstant(Constant *CPV, bool Static);
void printConstantWithCast(Constant *CPV, unsigned Opcode);
- bool printConstExprCast(const ConstantExpr *CE);
- void printConstantArray(ConstantArray *CPA);
- void printConstantVector(ConstantVector *CV);
+ 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.
// emit it inline where it would go.
if (I.getType() == Type::VoidTy || !I.hasOneUse() ||
isa<TerminatorInst>(I) || isa<CallInst>(I) || isa<PHINode>(I) ||
- isa<LoadInst>(I) || isa<VAArgInst>(I) || isa<InsertElementInst>(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;
void visitBranchInst(BranchInst &I);
void visitSwitchInst(SwitchInst &I);
void visitInvokeInst(InvokeInst &I) {
- assert(0 && "Lowerinvoke pass didn't work!");
+ llvm_unreachable("Lowerinvoke pass didn't work!");
}
void visitUnwindInst(UnwindInst &I) {
- assert(0 && "Lowerinvoke pass didn't work!");
+ llvm_unreachable("Lowerinvoke pass didn't work!");
}
void visitUnreachableInst(UnreachableInst &I);
void visitInsertElementInst(InsertElementInst &I);
void visitExtractElementInst(ExtractElementInst &I);
void visitShuffleVectorInst(ShuffleVectorInst &SVI);
- void visitGetResultInst(GetResultInst &GRI);
+
+ void visitInsertValueInst(InsertValueInst &I);
+ void visitExtractValueInst(ExtractValueInst &I);
void visitInstruction(Instruction &I) {
+#ifndef NDEBUG
cerr << "C Writer does not know about " << I;
- abort();
+#endif
+ llvm_unreachable(0);
}
void outputLValue(Instruction *I) {
void printBranchToBlock(BasicBlock *CurBlock, BasicBlock *SuccBlock,
unsigned Indent);
void printGEPExpression(Value *Ptr, gep_type_iterator I,
- gep_type_iterator E);
+ gep_type_iterator E, bool Static);
std::string GetValueName(const Value *Operand);
};
TI != TE; ) {
TypeSymbolTable::iterator I = TI++;
- // If this isn't a struct type, remove it from our set of types to name.
- // This simplifies emission later.
- if (!isa<StructType>(I->second) && !isa<OpaqueType>(I->second)) {
+ // If this isn't a struct or array type, remove it from our set of types
+ // to name. This simplifies emission later.
+ if (!isa<StructType>(I->second) && !isa<OpaqueType>(I->second) &&
+ !isa<ArrayType>(I->second)) {
TST.remove(I);
} else {
// If this is not used, remove it from the symbol table.
unsigned RenameCounter = 0;
for (std::set<const Type *>::const_iterator I = UT.begin(), E = UT.end();
I != E; ++I)
- if (const StructType *ST = dyn_cast<StructType>(*I)) {
- while (M.addTypeName("unnamed"+utostr(RenameCounter), ST))
+ if (isa<StructType>(*I) || isa<ArrayType>(*I)) {
+ while (M.addTypeName("unnamed"+utostr(RenameCounter), *I))
++RenameCounter;
Changed = true;
}
/// 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 CWriter::printStructReturnPointerFunctionType(std::ostream &Out,
- const PAListPtr &PAL,
+void CWriter::printStructReturnPointerFunctionType(raw_ostream &Out,
+ const AttrListPtr &PAL,
const PointerType *TheTy) {
const FunctionType *FTy = cast<FunctionType>(TheTy->getElementType());
std::stringstream FunctionInnards;
if (PrintedType)
FunctionInnards << ", ";
const Type *ArgTy = *I;
- if (PAL.paramHasAttr(Idx, ParamAttr::ByVal)) {
+ if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
assert(isa<PointerType>(ArgTy));
ArgTy = cast<PointerType>(ArgTy)->getElementType();
}
printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, ParamAttr::SExt), "");
+ /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
PrintedType = true;
}
if (FTy->isVarArg()) {
FunctionInnards << ')';
std::string tstr = FunctionInnards.str();
printType(Out, RetTy,
- /*isSigned=*/PAL.paramHasAttr(0, ParamAttr::SExt), tstr);
+ /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), tstr);
+}
+
+raw_ostream &
+CWriter::printSimpleType(raw_ostream &Out, const Type *Ty, bool isSigned,
+ const std::string &NameSoFar) {
+ assert((Ty->isPrimitiveType() || Ty->isInteger() || isa<VectorType>(Ty)) &&
+ "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::VectorTyID: {
+ const VectorType *VTy = cast<VectorType>(Ty);
+ return printSimpleType(Out, VTy->getElementType(), isSigned,
+ " __attribute__((vector_size(" +
+ utostr(TD->getTypeAllocSize(VTy)) + " ))) " + NameSoFar);
+ }
+
+ default:
+#ifndef NDEBUG
+ cerr << "Unknown primitive type: " << *Ty << "\n";
+#endif
+ llvm_unreachable(0);
+ }
}
std::ostream &
const VectorType *VTy = cast<VectorType>(Ty);
return printSimpleType(Out, VTy->getElementType(), isSigned,
" __attribute__((vector_size(" +
- utostr(TD->getABITypeSize(VTy)) + " ))) " + NameSoFar);
+ utostr(TD->getTypeAllocSize(VTy)) + " ))) " + NameSoFar);
}
default:
+#ifndef NDEBUG
cerr << "Unknown primitive type: " << *Ty << "\n";
- abort();
+#endif
+ llvm_unreachable(0);
+ }
+}
+
+// Pass the Type* and the variable name and this prints out the variable
+// declaration.
+//
+raw_ostream &CWriter::printType(raw_ostream &Out, const Type *Ty,
+ bool isSigned, const std::string &NameSoFar,
+ bool IgnoreName, const AttrListPtr &PAL) {
+ if (Ty->isPrimitiveType() || Ty->isInteger() || isa<VectorType>(Ty)) {
+ printSimpleType(Out, Ty, isSigned, NameSoFar);
+ return Out;
+ }
+
+ // Check to see if the type is named.
+ if (!IgnoreName || isa<OpaqueType>(Ty)) {
+ std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end()) return Out << I->second << ' ' << NameSoFar;
+ }
+
+ switch (Ty->getTypeID()) {
+ case Type::FunctionTyID: {
+ const FunctionType *FTy = cast<FunctionType>(Ty);
+ std::stringstream FunctionInnards;
+ FunctionInnards << " (" << NameSoFar << ") (";
+ unsigned Idx = 1;
+ for (FunctionType::param_iterator I = FTy->param_begin(),
+ E = FTy->param_end(); I != E; ++I) {
+ const Type *ArgTy = *I;
+ if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
+ assert(isa<PointerType>(ArgTy));
+ 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 << ", ...";
+ } else if (!FTy->getNumParams()) {
+ FunctionInnards << "void";
+ }
+ FunctionInnards << ')';
+ std::string tstr = FunctionInnards.str();
+ printType(Out, FTy->getReturnType(),
+ /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), tstr);
+ return Out;
}
+ case Type::StructTyID: {
+ const StructType *STy = cast<StructType>(Ty);
+ 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: {
+ const PointerType *PTy = cast<PointerType>(Ty);
+ std::string ptrName = "*" + NameSoFar;
+
+ if (isa<ArrayType>(PTy->getElementType()) ||
+ isa<VectorType>(PTy->getElementType()))
+ 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: {
+ const 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 << "; }";
+ }
+
+ case Type::OpaqueTyID: {
+ std::string TyName = "struct opaque_" + itostr(OpaqueCounter++);
+ assert(TypeNames.find(Ty) == TypeNames.end());
+ TypeNames[Ty] = TyName;
+ return Out << TyName << ' ' << NameSoFar;
+ }
+ default:
+ llvm_unreachable("Unhandled case in getTypeProps!");
+ }
+
+ return Out;
}
// Pass the Type* and the variable name and this prints out the variable
//
std::ostream &CWriter::printType(std::ostream &Out, const Type *Ty,
bool isSigned, const std::string &NameSoFar,
- bool IgnoreName, const PAListPtr &PAL) {
+ bool IgnoreName, const AttrListPtr &PAL) {
if (Ty->isPrimitiveType() || Ty->isInteger() || isa<VectorType>(Ty)) {
printSimpleType(Out, Ty, isSigned, NameSoFar);
return Out;
for (FunctionType::param_iterator I = FTy->param_begin(),
E = FTy->param_end(); I != E; ++I) {
const Type *ArgTy = *I;
- if (PAL.paramHasAttr(Idx, ParamAttr::ByVal)) {
+ if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
assert(isa<PointerType>(ArgTy));
ArgTy = cast<PointerType>(ArgTy)->getElementType();
}
if (I != FTy->param_begin())
FunctionInnards << ", ";
printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, ParamAttr::SExt), "");
+ /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt), "");
++Idx;
}
if (FTy->isVarArg()) {
FunctionInnards << ')';
std::string tstr = FunctionInnards.str();
printType(Out, FTy->getReturnType(),
- /*isSigned=*/PAL.paramHasAttr(0, ParamAttr::SExt), tstr);
+ /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt), tstr);
return Out;
}
case Type::StructTyID: {
const ArrayType *ATy = cast<ArrayType>(Ty);
unsigned NumElements = ATy->getNumElements();
if (NumElements == 0) NumElements = 1;
- return printType(Out, ATy->getElementType(), false,
- NameSoFar + "[" + utostr(NumElements) + "]");
+ // 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 << "; }";
}
case Type::OpaqueTyID: {
- static int Count = 0;
- std::string TyName = "struct opaque_" + itostr(Count++);
+ std::string TyName = "struct opaque_" + itostr(OpaqueCounter++);
assert(TypeNames.find(Ty) == TypeNames.end());
TypeNames[Ty] = TyName;
return Out << TyName << ' ' << NameSoFar;
}
default:
- assert(0 && "Unhandled case in getTypeProps!");
- abort();
+ llvm_unreachable("Unhandled case in getTypeProps!");
}
return Out;
}
-void CWriter::printConstantArray(ConstantArray *CPA) {
+void CWriter::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.
if (isprint(C) && (!LastWasHex || !isxdigit(C))) {
LastWasHex = false;
if (C == '"' || C == '\\')
- Out << "\\" << C;
+ Out << "\\" << (char)C;
else
- Out << C;
+ Out << (char)C;
} else {
LastWasHex = false;
switch (C) {
Out << '{';
if (CPA->getNumOperands()) {
Out << ' ';
- printConstant(cast<Constant>(CPA->getOperand(0)));
+ printConstant(cast<Constant>(CPA->getOperand(0)), Static);
for (unsigned i = 1, e = CPA->getNumOperands(); i != e; ++i) {
Out << ", ";
- printConstant(cast<Constant>(CPA->getOperand(i)));
+ printConstant(cast<Constant>(CPA->getOperand(i)), Static);
}
}
Out << " }";
}
}
-void CWriter::printConstantVector(ConstantVector *CP) {
+void CWriter::printConstantVector(ConstantVector *CP, bool Static) {
Out << '{';
if (CP->getNumOperands()) {
Out << ' ';
- printConstant(cast<Constant>(CP->getOperand(0)));
+ printConstant(cast<Constant>(CP->getOperand(0)), Static);
for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
Out << ", ";
- printConstant(cast<Constant>(CP->getOperand(i)));
+ printConstant(cast<Constant>(CP->getOperand(i)), Static);
}
}
Out << " }";
// only deal in IEEE FP).
//
static bool isFPCSafeToPrint(const ConstantFP *CFP) {
+ bool ignored;
// Do long doubles in hex for now.
- if (CFP->getType()!=Type::FloatTy && CFP->getType()!=Type::DoubleTy)
+ if (CFP->getType() != Type::FloatTy && CFP->getType() != Type::DoubleTy)
return false;
APFloat APF = APFloat(CFP->getValueAPF()); // copy
- if (CFP->getType()==Type::FloatTy)
- APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven);
+ if (CFP->getType() == Type::FloatTy)
+ APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored);
#if HAVE_PRINTF_A && ENABLE_CBE_PRINTF_A
char Buffer[100];
sprintf(Buffer, "%a", APF.convertToDouble());
Out << ')';
break;
default:
- assert(0 && "Invalid cast opcode");
+ llvm_unreachable("Invalid cast opcode");
}
// Print the source type cast
case Instruction::FPToUI:
break; // These don't need a source cast.
default:
- assert(0 && "Invalid cast opcode");
+ llvm_unreachable("Invalid cast opcode");
break;
}
}
// printConstant - The LLVM Constant to C Constant converter.
-void CWriter::printConstant(Constant *CPV) {
+void CWriter::printConstant(Constant *CPV, bool Static) {
if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CPV)) {
switch (CE->getOpcode()) {
case Instruction::Trunc:
// Make sure we really sext from bool here by subtracting from 0
Out << "0-";
}
- printConstant(CE->getOperand(0));
+ printConstant(CE->getOperand(0), Static);
if (CE->getType() == Type::Int1Ty &&
(CE->getOpcode() == Instruction::Trunc ||
CE->getOpcode() == Instruction::FPToUI ||
case Instruction::GetElementPtr:
Out << "(";
printGEPExpression(CE->getOperand(0), gep_type_begin(CPV),
- gep_type_end(CPV));
+ gep_type_end(CPV), Static);
Out << ")";
return;
case Instruction::Select:
Out << '(';
- printConstant(CE->getOperand(0));
+ printConstant(CE->getOperand(0), Static);
Out << '?';
- printConstant(CE->getOperand(1));
+ printConstant(CE->getOperand(1), Static);
Out << ':';
- printConstant(CE->getOperand(2));
+ 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::AShr:
{
Out << '(';
- bool NeedsClosingParens = printConstExprCast(CE);
+ bool NeedsClosingParens = printConstExprCast(CE, Static);
printConstantWithCast(CE->getOperand(0), CE->getOpcode());
switch (CE->getOpcode()) {
- case Instruction::Add: Out << " + "; break;
- case Instruction::Sub: Out << " - "; break;
- case Instruction::Mul: Out << " * "; break;
+ 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 ICmpInst::ICMP_UGT: Out << " > "; break;
case ICmpInst::ICMP_SGE:
case ICmpInst::ICMP_UGE: Out << " >= "; break;
- default: assert(0 && "Illegal ICmp predicate");
+ default: llvm_unreachable("Illegal ICmp predicate");
}
break;
- default: assert(0 && "Illegal opcode here!");
+ default: llvm_unreachable("Illegal opcode here!");
}
printConstantWithCast(CE->getOperand(1), CE->getOpcode());
if (NeedsClosingParens)
}
case Instruction::FCmp: {
Out << '(';
- bool NeedsClosingParens = printConstExprCast(CE);
+ bool NeedsClosingParens = printConstExprCast(CE, Static);
if (CE->getPredicate() == FCmpInst::FCMP_FALSE)
Out << "0";
else if (CE->getPredicate() == FCmpInst::FCMP_TRUE)
else {
const char* op = 0;
switch (CE->getPredicate()) {
- default: assert(0 && "Illegal FCmp predicate");
+ 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;
return;
}
default:
+#ifndef NDEBUG
cerr << "CWriter Error: Unhandled constant expression: "
<< *CE << "\n";
- abort();
+#endif
+ llvm_unreachable(0);
}
} else if (isa<UndefValue>(CPV) && CPV->getType()->isSingleValueType()) {
Out << "((";
Out << CI->getZExtValue() << 'u';
else
Out << CI->getSExtValue();
- Out << ')';
+ Out << ')';
}
return;
}
"long double")
<< "*)&FPConstant" << I->second << ')';
} else {
- assert(FPC->getType() == Type::FloatTy ||
- FPC->getType() == Type::DoubleTy);
- double V = FPC->getType() == Type::FloatTy ?
- FPC->getValueAPF().convertToFloat() :
- FPC->getValueAPF().convertToDouble();
+ double V;
+ if (FPC->getType() == Type::FloatTy)
+ V = FPC->getValueAPF().convertToFloat();
+ else if (FPC->getType() == Type::DoubleTy)
+ 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
}
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);
+ printConstantArray(CA, Static);
} else {
assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
const ArrayType *AT = cast<ArrayType>(CPV->getType());
Out << '{';
if (AT->getNumElements()) {
Out << ' ';
- Constant *CZ = Constant::getNullValue(AT->getElementType());
- printConstant(CZ);
+ Constant *CZ = Context->getNullValue(AT->getElementType());
+ printConstant(CZ, Static);
for (unsigned i = 1, e = AT->getNumElements(); i != e; ++i) {
Out << ", ";
- printConstant(CZ);
+ printConstant(CZ, Static);
}
}
Out << " }";
}
+ Out << " }"; // Arrays are wrapped in struct types.
break;
case Type::VectorTyID:
// Use C99 compound expression literal initializer syntax.
- Out << "(";
- printType(Out, CPV->getType());
- Out << ")";
+ if (!Static) {
+ Out << "(";
+ printType(Out, CPV->getType());
+ Out << ")";
+ }
if (ConstantVector *CV = dyn_cast<ConstantVector>(CPV)) {
- printConstantVector(CV);
+ printConstantVector(CV, Static);
} else {
assert(isa<ConstantAggregateZero>(CPV) || isa<UndefValue>(CPV));
const VectorType *VT = cast<VectorType>(CPV->getType());
Out << "{ ";
- Constant *CZ = Constant::getNullValue(VT->getElementType());
- printConstant(CZ);
+ Constant *CZ = Context->getNullValue(VT->getElementType());
+ printConstant(CZ, Static);
for (unsigned i = 1, e = VT->getNumElements(); i != e; ++i) {
Out << ", ";
- printConstant(CZ);
+ 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)) {
const StructType *ST = cast<StructType>(CPV->getType());
Out << '{';
if (ST->getNumElements()) {
Out << ' ';
- printConstant(Constant::getNullValue(ST->getElementType(0)));
+ printConstant(Context->getNullValue(ST->getElementType(0)), Static);
for (unsigned i = 1, e = ST->getNumElements(); i != e; ++i) {
Out << ", ";
- printConstant(Constant::getNullValue(ST->getElementType(i)));
+ printConstant(Context->getNullValue(ST->getElementType(i)), Static);
}
}
Out << " }";
Out << '{';
if (CPV->getNumOperands()) {
Out << ' ';
- printConstant(cast<Constant>(CPV->getOperand(0)));
+ printConstant(cast<Constant>(CPV->getOperand(0)), Static);
for (unsigned i = 1, e = CPV->getNumOperands(); i != e; ++i) {
Out << ", ";
- printConstant(cast<Constant>(CPV->getOperand(i)));
+ printConstant(cast<Constant>(CPV->getOperand(i)), Static);
}
}
Out << " }";
Out << ")/*NULL*/0)";
break;
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(CPV)) {
- writeOperand(GV);
+ writeOperand(GV, Static);
break;
}
// FALL THROUGH
default:
+#ifndef NDEBUG
cerr << "Unknown constant type: " << *CPV << "\n";
- abort();
+#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 CWriter::printConstExprCast(const ConstantExpr* CE) {
+bool CWriter::printConstExprCast(const ConstantExpr* CE, bool Static) {
bool NeedsExplicitCast = false;
const 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;
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:
Out << "((";
printSimpleType(Out, OpTy, typeIsSigned);
Out << ")";
- printConstant(CPV);
+ printConstant(CPV, false);
Out << ")";
} else
- printConstant(CPV);
+ printConstant(CPV, false);
}
std::string CWriter::GetValueName(const Value *Operand) {
- std::string Name;
-
- if (!isa<GlobalValue>(Operand) && Operand->getName() != "") {
- std::string VarName;
-
- Name = Operand->getName();
- 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;
- }
-
- Name = "llvm_cbe_" + VarName;
- } else {
- Name = Mang->getValueName(Operand);
+ // Mangle globals with the standard mangler interface for LLC compatibility.
+ if (const GlobalValue *GV = dyn_cast<GlobalValue>(Operand))
+ return Mang->getValueName(GV);
+
+ 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());
- return Name;
+ 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_cbe_" + VarName;
+}
+
+/// writeInstComputationInline - Emit the computation for the specified
+/// instruction inline, with no destination provided.
+void CWriter::writeInstComputationInline(Instruction &I) {
+ // We can't currently support integer types other than 1, 8, 16, 32, 64.
+ // Validate this.
+ const Type *Ty = I.getType();
+ if (Ty->isInteger() && (Ty!=Type::Int1Ty && Ty!=Type::Int8Ty &&
+ Ty!=Type::Int16Ty && Ty!=Type::Int32Ty && Ty!=Type::Int64Ty)) {
+ llvm_report_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::Int1Ty && !isa<ICmpInst>(I) && !isa<FCmpInst>(I))
+ NeedBoolTrunc = true;
+
+ if (NeedBoolTrunc)
+ Out << "((";
+
+ visit(I);
+
+ if (NeedBoolTrunc)
+ Out << ")&1)";
}
-void CWriter::writeOperandInternal(Value *Operand) {
+
+void CWriter::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)) {
- // Should we inline this instruction to build a tree?
Out << '(';
- visit(*I);
+ writeInstComputationInline(*I);
Out << ')';
return;
}
Constant* CPV = dyn_cast<Constant>(Operand);
if (CPV && !isa<GlobalValue>(CPV))
- printConstant(CPV);
+ printConstant(CPV, Static);
else
Out << GetValueName(Operand);
}
-void CWriter::writeOperandRaw(Value *Operand) {
- Constant* CPV = dyn_cast<Constant>(Operand);
- if (CPV && !isa<GlobalValue>(CPV)) {
- printConstant(CPV);
- } else {
- Out << GetValueName(Operand);
- }
-}
-
-void CWriter::writeOperand(Value *Operand) {
+void CWriter::writeOperand(Value *Operand, bool Static) {
bool isAddressImplicit = isAddressExposed(Operand);
if (isAddressImplicit)
Out << "(&"; // Global variables are referenced as their addresses by llvm
- writeOperandInternal(Operand);
+ writeOperandInternal(Operand, Static);
if (isAddressImplicit)
Out << ')';
bool CWriter::writeInstructionCast(const Instruction &I) {
const Type *Ty = I.getOperand(0)->getType();
switch (I.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:
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: // Cast to unsigned first
// generateCompilerSpecificCode - This is where we add conditional compilation
// directives to cater to specific compilers as need be.
//
-static void generateCompilerSpecificCode(std::ostream& Out,
+static void generateCompilerSpecificCode(raw_ostream& Out,
const TargetData *TD) {
// Alloca is hard to get, and we don't want to include stdlib.h here.
Out << "/* get a declaration for alloca */\n"
<< "extern void *__builtin_alloca(unsigned int);\n"
<< "#endif\n"
<< "#define alloca(x) __builtin_alloca(x)\n"
- << "#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)\n"
+ << "#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)\n"
<< "#define alloca(x) __builtin_alloca(x)\n"
<< "#elif defined(_MSC_VER)\n"
<< "#define inline _inline\n"
// Output typedefs for 128-bit integers. If these are needed with a
// 32-bit target or with a C compiler that doesn't support mode(TI),
// more drastic measures will be needed.
- if (TD->getPointerSize() >= 8) {
- Out << "#ifdef __GNUC__ /* 128-bit integer types */\n"
- << "typedef int __attribute__((mode(TI))) llvmInt128;\n"
- << "typedef unsigned __attribute__((mode(TI))) llvmUInt128;\n"
- << "#endif\n\n";
- }
+ Out << "#if __GNUC__ && __LP64__ /* 128-bit integer types */\n"
+ << "typedef int __attribute__((mode(TI))) llvmInt128;\n"
+ << "typedef unsigned __attribute__((mode(TI))) llvmUInt128;\n"
+ << "#endif\n\n";
// Output target-specific code that should be inserted into main.
Out << "#define CODE_FOR_MAIN() /* Any target-specific code for main()*/\n";
if (getGlobalVariableClass(I))
continue;
- if (I->hasInternalLinkage())
+ if (I->hasLocalLinkage())
Out << "static ";
else
Out << "extern ";
if (getGlobalVariableClass(I))
continue;
- if (I->hasInternalLinkage())
+ if (I->hasLocalLinkage())
Out << "static ";
else if (I->hasDLLImportLinkage())
Out << "__declspec(dllimport) ";
// FIXME common linkage should avoid this problem.
if (!I->getInitializer()->isNullValue()) {
Out << " = " ;
- writeOperand(I->getInitializer());
+ writeOperand(I->getInitializer(), true);
} else if (I->hasWeakLinkage()) {
// We have to specify an initializer, but it doesn't have to be
// complete. If the value is an aggregate, print out { 0 }, and let
// the compiler figure out the rest of the zeros.
Out << " = " ;
if (isa<StructType>(I->getInitializer()->getType()) ||
- isa<ArrayType>(I->getInitializer()->getType()) ||
isa<VectorType>(I->getInitializer()->getType())) {
Out << "{ 0 }";
+ } else if (isa<ArrayType>(I->getInitializer()->getType())) {
+ // As with structs and vectors, but with an extra set of braces
+ // because arrays are wrapped in structs.
+ Out << "{ { 0 } }";
} else {
// Just print it out normally.
- writeOperand(I->getInitializer());
+ writeOperand(I->getInitializer(), true);
}
}
Out << ";\n";
// the precision of the printed form, unless the printed form preserves
// precision.
//
- static unsigned FPCounter = 0;
for (constant_iterator I = constant_begin(&F), E = constant_end(&F);
I != E; ++I)
- if (const ConstantFP *FPC = dyn_cast<ConstantFP>(*I))
- if (!isFPCSafeToPrint(FPC) && // Do not put in FPConstantMap if safe.
- !FPConstantMap.count(FPC)) {
- FPConstantMap[FPC] = FPCounter; // Number the FP constants
-
- if (FPC->getType() == Type::DoubleTy) {
- double Val = FPC->getValueAPF().convertToDouble();
- uint64_t i = FPC->getValueAPF().convertToAPInt().getZExtValue();
- Out << "static const ConstantDoubleTy FPConstant" << FPCounter++
- << " = 0x" << std::hex << i << std::dec
- << "ULL; /* " << Val << " */\n";
- } else if (FPC->getType() == Type::FloatTy) {
- float Val = FPC->getValueAPF().convertToFloat();
- uint32_t i = (uint32_t)FPC->getValueAPF().convertToAPInt().
- getZExtValue();
- Out << "static const ConstantFloatTy FPConstant" << FPCounter++
- << " = 0x" << std::hex << i << std::dec
- << "U; /* " << Val << " */\n";
- } else if (FPC->getType() == Type::X86_FP80Ty) {
- // api needed to prevent premature destruction
- APInt api = FPC->getValueAPF().convertToAPInt();
- const uint64_t *p = api.getRawData();
- Out << "static const ConstantFP80Ty FPConstant" << FPCounter++
- << " = { 0x" << std::hex
- << ((uint16_t)p[1] | (p[0] & 0xffffffffffffLL)<<16)
- << "ULL, 0x" << (uint16_t)(p[0] >> 48) << ",{0,0,0}"
- << "}; /* Long double constant */\n" << std::dec;
- } else if (FPC->getType() == Type::PPC_FP128Ty) {
- APInt api = FPC->getValueAPF().convertToAPInt();
- const uint64_t *p = api.getRawData();
- Out << "static const ConstantFP128Ty FPConstant" << FPCounter++
- << " = { 0x" << std::hex
- << p[0] << ", 0x" << p[1]
- << "}; /* Long double constant */\n" << std::dec;
-
- } else
- assert(0 && "Unknown float type!");
- }
+ printFloatingPointConstants(*I);
Out << '\n';
}
+void CWriter::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::DoubleTy) {
+ 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::FloatTy) {
+ 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::X86_FP80Ty) {
+ // 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::PPC_FP128Ty) {
+ 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!");
+ }
+}
+
+
/// printSymbolTable - Run through symbol table looking for type names. If a
/// type name is found, emit its declaration...
Out << '\n';
// Keep track of which structures have been printed so far...
- std::set<const StructType *> StructPrinted;
+ std::set<const Type *> StructPrinted;
// Loop over all structures then push them into the stack so they are
// printed in the correct order.
//
Out << "/* Structure contents */\n";
for (I = TST.begin(); I != End; ++I)
- if (const StructType *STy = dyn_cast<StructType>(I->second))
+ if (isa<StructType>(I->second) || isa<ArrayType>(I->second))
// Only print out used types!
- printContainedStructs(STy, StructPrinted);
+ printContainedStructs(I->second, StructPrinted);
}
// Push the struct onto the stack and recursively push all structs
// TODO: Make this work properly with vector types
//
void CWriter::printContainedStructs(const Type *Ty,
- std::set<const StructType*> &StructPrinted){
+ std::set<const Type*> &StructPrinted) {
// Don't walk through pointers.
if (isa<PointerType>(Ty) || Ty->isPrimitiveType() || Ty->isInteger()) return;
E = Ty->subtype_end(); I != E; ++I)
printContainedStructs(*I, StructPrinted);
- if (const StructType *STy = dyn_cast<StructType>(Ty)) {
+ if (isa<StructType>(Ty) || isa<ArrayType>(Ty)) {
// Check to see if we have already printed this struct.
- if (StructPrinted.insert(STy).second) {
+ if (StructPrinted.insert(Ty).second) {
// Print structure type out.
- std::string Name = TypeNames[STy];
- printType(Out, STy, false, Name, true);
+ std::string Name = TypeNames[Ty];
+ printType(Out, Ty, false, Name, true);
Out << ";\n\n";
}
}
/// isStructReturn - Should this function actually return a struct by-value?
bool isStructReturn = F->hasStructRetAttr();
- if (F->hasInternalLinkage()) Out << "static ";
+ if (F->hasLocalLinkage()) Out << "static ";
if (F->hasDLLImportLinkage()) Out << "__declspec(dllimport) ";
if (F->hasDLLExportLinkage()) Out << "__declspec(dllexport) ";
switch (F->getCallingConv()) {
case CallingConv::X86_StdCall:
- Out << "__stdcall ";
+ Out << "__attribute__((stdcall)) ";
break;
case CallingConv::X86_FastCall:
- Out << "__fastcall ";
+ Out << "__attribute__((fastcall)) ";
break;
}
// Loop over the arguments, printing them...
const FunctionType *FT = cast<FunctionType>(F->getFunctionType());
- const PAListPtr &PAL = F->getParamAttrs();
+ const AttrListPtr &PAL = F->getAttributes();
std::stringstream FunctionInnards;
else
ArgName = "";
const Type *ArgTy = I->getType();
- if (PAL.paramHasAttr(Idx, ParamAttr::ByVal)) {
+ if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
ArgTy = cast<PointerType>(ArgTy)->getElementType();
ByValParams.insert(I);
}
printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, ParamAttr::SExt),
+ /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt),
ArgName);
PrintedArg = true;
++Idx;
for (; I != E; ++I) {
if (PrintedArg) FunctionInnards << ", ";
const Type *ArgTy = *I;
- if (PAL.paramHasAttr(Idx, ParamAttr::ByVal)) {
+ if (PAL.paramHasAttr(Idx, Attribute::ByVal)) {
assert(isa<PointerType>(ArgTy));
ArgTy = cast<PointerType>(ArgTy)->getElementType();
}
printType(FunctionInnards, ArgTy,
- /*isSigned=*/PAL.paramHasAttr(Idx, ParamAttr::SExt));
+ /*isSigned=*/PAL.paramHasAttr(Idx, Attribute::SExt));
PrintedArg = true;
++Idx;
}
// Print out the return type and the signature built above.
printType(Out, RetTy,
- /*isSigned=*/PAL.paramHasAttr(0, ParamAttr::SExt),
+ /*isSigned=*/PAL.paramHasAttr(0, Attribute::SExt),
FunctionInnards.str());
}
outputLValue(II);
else
Out << " ";
- visit(*II);
+ writeInstComputationInline(*II);
Out << ";\n";
}
}
- // Don't emit prefix or suffix for the terminator...
+ // Don't emit prefix or suffix for the terminator.
visit(*BB->getTerminator());
}
Out << "-(";
writeOperand(BinaryOperator::getNegArgument(cast<BinaryOperator>(&I)));
Out << ")";
+ } else if (BinaryOperator::isFNeg(&I)) {
+ Out << "-(";
+ writeOperand(BinaryOperator::getFNegArgument(cast<BinaryOperator>(&I)));
+ Out << ")";
} else if (I.getOpcode() == Instruction::FRem) {
// Output a call to fmod/fmodf instead of emitting a%b
if (I.getType() == Type::FloatTy)
writeOperandWithCast(I.getOperand(0), I.getOpcode());
switch (I.getOpcode()) {
- case Instruction::Add: Out << " + "; break;
- case Instruction::Sub: Out << " - "; break;
- case Instruction::Mul: Out << " * "; break;
+ 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::Shl : Out << " << "; break;
case Instruction::LShr:
case Instruction::AShr: Out << " >> "; break;
- default: cerr << "Invalid operator type!" << I; abort();
+ default:
+#ifndef NDEBUG
+ cerr << "Invalid operator type!" << I;
+#endif
+ llvm_unreachable(0);
}
writeOperandWithCast(I.getOperand(1), I.getOpcode());
case ICmpInst::ICMP_SLT: Out << " < "; break;
case ICmpInst::ICMP_UGT:
case ICmpInst::ICMP_SGT: Out << " > "; break;
- default: cerr << "Invalid icmp predicate!" << I; abort();
+ default:
+#ifndef NDEBUG
+ cerr << "Invalid icmp predicate!" << I;
+#endif
+ llvm_unreachable(0);
}
writeOperandWithCast(I.getOperand(1), I);
const char* op = 0;
switch (I.getPredicate()) {
- default: assert(0 && "Illegal FCmp predicate");
+ 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;
static const char * getFloatBitCastField(const Type *Ty) {
switch (Ty->getTypeID()) {
- default: assert(0 && "Invalid Type");
+ default: llvm_unreachable("Invalid Type");
case Type::FloatTyID: return "Float";
case Type::DoubleTyID: return "Double";
case Type::IntegerTyID: {
void CWriter::visitCastInst(CastInst &I) {
const Type *DstTy = I.getType();
const Type *SrcTy = I.getOperand(0)->getType();
- Out << '(';
if (isFPIntBitCast(I)) {
+ Out << '(';
// These int<->float and long<->double casts need to be handled specially
Out << GetValueName(&I) << "__BITCAST_TEMPORARY."
<< getFloatBitCastField(I.getOperand(0)->getType()) << " = ";
writeOperand(I.getOperand(0));
Out << ", " << GetValueName(&I) << "__BITCAST_TEMPORARY."
<< getFloatBitCastField(I.getType());
- } else {
- printCast(I.getOpcode(), SrcTy, DstTy);
- if (I.getOpcode() == Instruction::SExt && SrcTy == Type::Int1Ty) {
- // Make sure we really get a sext from bool by subtracing the bool from 0
- Out << "0-";
- }
- writeOperand(I.getOperand(0));
- if (DstTy == Type::Int1Ty &&
- (I.getOpcode() == Instruction::Trunc ||
- I.getOpcode() == Instruction::FPToUI ||
- I.getOpcode() == Instruction::FPToSI ||
- I.getOpcode() == Instruction::PtrToInt)) {
- // Make sure we really get a trunc to bool by anding the operand with 1
- Out << "&1u";
- }
+ Out << ')';
+ return;
+ }
+
+ Out << '(';
+ printCast(I.getOpcode(), SrcTy, DstTy);
+
+ // Make a sext from i1 work by subtracting the i1 from 0 (an int).
+ if (SrcTy == Type::Int1Ty && I.getOpcode() == Instruction::SExt)
+ Out << "0-";
+
+ writeOperand(I.getOperand(0));
+
+ if (DstTy == Type::Int1Ty &&
+ (I.getOpcode() == Instruction::Trunc ||
+ I.getOpcode() == Instruction::FPToUI ||
+ I.getOpcode() == Instruction::FPToSI ||
+ I.getOpcode() == Instruction::PtrToInt)) {
+ // Make sure we really get a trunc to bool by anding the operand with 1
+ Out << "&1u";
}
Out << ')';
}
// If this is a call to a struct-return function, assign to the first
// parameter instead of passing it to the call.
- const PAListPtr &PAL = I.getParamAttrs();
+ const AttrListPtr &PAL = I.getAttributes();
bool hasByVal = I.hasByValArgument();
bool isStructRet = I.hasStructRetAttr();
if (isStructRet) {
(*AI)->getType() != FTy->getParamType(ArgNo)) {
Out << '(';
printType(Out, FTy->getParamType(ArgNo),
- /*isSigned=*/PAL.paramHasAttr(ArgNo+1, ParamAttr::SExt));
+ /*isSigned=*/PAL.paramHasAttr(ArgNo+1, Attribute::SExt));
Out << ')';
}
// Check if the argument is expected to be passed by value.
- if (I.paramHasAttr(ArgNo+1, ParamAttr::ByVal))
+ if (I.paramHasAttr(ArgNo+1, Attribute::ByVal))
writeOperandDeref(*AI);
else
writeOperand(*AI);
Out << ", ";
// Output the last argument to the enclosing function.
if (I.getParent()->getParent()->arg_empty()) {
- cerr << "The C backend does not currently support zero "
+ std::string msg;
+ raw_string_ostream Msg(msg);
+ Msg << "The C backend does not currently support zero "
<< "argument varargs functions, such as '"
- << I.getParent()->getParent()->getName() << "'!\n";
- abort();
+ << I.getParent()->getParent()->getName() << "'!";
+ llvm_report_error(Msg.str());
}
writeOperand(--I.getParent()->getParent()->arg_end());
Out << ')';
case Intrinsic::dbg_stoppoint: {
// If we use writeOperand directly we get a "u" suffix which is rejected
// by gcc.
+ std::stringstream SPIStr;
DbgStopPointInst &SPI = cast<DbgStopPointInst>(I);
+ SPI.getDirectory()->print(SPIStr);
Out << "\n#line "
<< SPI.getLine()
- << " \"" << SPI.getDirectory()
- << SPI.getFileName() << "\"\n";
+ << " \"";
+ Out << SPIStr.str();
+ SPIStr.clear();
+ SPI.getFileName()->print(SPIStr);
+ Out << SPIStr.str() << "\"\n";
return true;
}
case Intrinsic::x86_sse_cmp_ss:
Out << ')';
// Multiple GCC builtins multiplex onto this intrinsic.
switch (cast<ConstantInt>(I.getOperand(3))->getZExtValue()) {
- default: assert(0 && "Invalid llvm.x86.sse.cmp!");
+ default: llvm_unreachable("Invalid llvm.x86.sse.cmp!");
case 0: Out << "__builtin_ia32_cmpeq"; break;
case 1: Out << "__builtin_ia32_cmplt"; break;
case 2: Out << "__builtin_ia32_cmple"; break;
void CWriter::visitInlineAsm(CallInst &CI) {
InlineAsm* as = cast<InlineAsm>(CI.getOperand(0));
std::vector<InlineAsm::ConstraintInfo> Constraints = as->ParseConstraints();
- std::vector<std::pair<std::string, Value*> > Input;
- std::vector<std::pair<std::string, std::pair<Value*, int> > > Output;
- std::string Clobber;
- unsigned ValueCount = 0;
std::vector<std::pair<Value*, int> > ResultVals;
if (CI.getType() == Type::VoidTy)
ResultVals.push_back(std::make_pair(&CI, -1));
}
+ // Fix up the asm string for gcc and emit it.
+ Out << "__asm__ volatile (\"" << gccifyAsm(as->getAsmString()) << "\"\n";
+ Out << " :";
+
+ unsigned ValueCount = 0;
+ bool IsFirst = true;
+
+ // Convert over all the output constraints.
for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
- E = Constraints.end(); I != E; ++I) {
+ E = Constraints.end(); I != E; ++I) {
+
+ if (I->Type != InlineAsm::isOutput) {
+ ++ValueCount;
+ continue; // Ignore non-output constraints.
+ }
+
assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
std::string C = InterpretASMConstraint(*I);
if (C.empty()) continue;
- switch (I->Type) {
- default: assert(0 && "Unknown asm constraint");
- case InlineAsm::isInput: {
- assert(ValueCount >= ResultVals.size() && "Input can't refer to result");
- Value *V = CI.getOperand(ValueCount-ResultVals.size()+1);
- Input.push_back(std::make_pair(C, V));
- break;
- }
- case InlineAsm::isOutput: {
- std::pair<Value*, int> V;
- if (ValueCount < ResultVals.size())
- V = ResultVals[ValueCount];
- else
- V = std::make_pair(CI.getOperand(ValueCount-ResultVals.size()+1), -1);
- Output.push_back(std::make_pair("="+((I->isEarlyClobber ? "&" : "")+C),
- V));
- break;
- }
- case InlineAsm::isClobber:
- Clobber += ",\"" + C + "\"";
- continue; // Not an actual argument.
+ if (!IsFirst) {
+ Out << ", ";
+ IsFirst = false;
}
- ++ValueCount; // Consumes an argument.
+
+ // Unpack the dest.
+ Value *DestVal;
+ int DestValNo = -1;
+
+ if (ValueCount < ResultVals.size()) {
+ DestVal = ResultVals[ValueCount].first;
+ DestValNo = ResultVals[ValueCount].second;
+ } else
+ DestVal = CI.getOperand(ValueCount-ResultVals.size()+1);
+
+ if (I->isEarlyClobber)
+ C = "&"+C;
+
+ Out << "\"=" << C << "\"(" << GetValueName(DestVal);
+ if (DestValNo != -1)
+ Out << ".field" << DestValNo; // Multiple retvals.
+ Out << ")";
+ ++ValueCount;
}
- // Fix up the asm string for gcc.
- std::string asmstr = gccifyAsm(as->getAsmString());
- Out << "__asm__ volatile (\"" << asmstr << "\"\n";
- Out << " :";
- for (unsigned i = 0, e = Output.size(); i != e; ++i) {
- if (i)
+ // Convert over all the input constraints.
+ Out << "\n :";
+ IsFirst = true;
+ ValueCount = 0;
+ for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
+ E = Constraints.end(); I != E; ++I) {
+ if (I->Type != InlineAsm::isInput) {
+ ++ValueCount;
+ continue; // Ignore non-input constraints.
+ }
+
+ assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
+ std::string C = InterpretASMConstraint(*I);
+ if (C.empty()) continue;
+
+ if (!IsFirst) {
Out << ", ";
- Out << "\"" << Output[i].first << "\"("
- << GetValueName(Output[i].second.first);
- if (Output[i].second.second != -1)
- Out << ".field" << Output[i].second.second; // Multiple retvals.
+ IsFirst = false;
+ }
+
+ assert(ValueCount >= ResultVals.size() && "Input can't refer to result");
+ Value *SrcVal = CI.getOperand(ValueCount-ResultVals.size()+1);
+
+ Out << "\"" << C << "\"(";
+ if (!I->isIndirect)
+ writeOperand(SrcVal);
+ else
+ writeOperandDeref(SrcVal);
Out << ")";
}
- Out << "\n :";
- for (unsigned i = 0, e = Input.size(); i != e; ++i) {
- if (i)
+
+ // Convert over the clobber constraints.
+ IsFirst = true;
+ ValueCount = 0;
+ for (std::vector<InlineAsm::ConstraintInfo>::iterator I = Constraints.begin(),
+ E = Constraints.end(); I != E; ++I) {
+ if (I->Type != InlineAsm::isClobber)
+ continue; // Ignore non-input constraints.
+
+ assert(I->Codes.size() == 1 && "Too many asm constraint codes to handle");
+ std::string C = InterpretASMConstraint(*I);
+ if (C.empty()) continue;
+
+ if (!IsFirst) {
Out << ", ";
- Out << "\"" << Input[i].first << "\"(";
- writeOperand(Input[i].second);
- Out << ")";
+ IsFirst = false;
+ }
+
+ Out << '\"' << C << '"';
}
- if (Clobber.size())
- Out << "\n :" << Clobber.substr(1);
+
Out << ")";
}
void CWriter::visitMallocInst(MallocInst &I) {
- assert(0 && "lowerallocations pass didn't work!");
+ llvm_unreachable("lowerallocations pass didn't work!");
}
void CWriter::visitAllocaInst(AllocaInst &I) {
}
void CWriter::visitFreeInst(FreeInst &I) {
- assert(0 && "lowerallocations pass didn't work!");
+ llvm_unreachable("lowerallocations pass didn't work!");
}
void CWriter::printGEPExpression(Value *Ptr, gep_type_iterator I,
- gep_type_iterator E) {
+ gep_type_iterator E, bool Static) {
// If there are no indices, just print out the pointer.
if (I == E) {
// Okay, emit the first operand. If Ptr is something that is already address
// exposed, like a global, avoid emitting (&foo)[0], just emit foo instead.
if (isAddressExposed(Ptr)) {
- writeOperandInternal(Ptr);
+ writeOperandInternal(Ptr, Static);
} else if (I != E && isa<StructType>(*I)) {
// If we didn't already emit the first operand, see if we can print it as
// P->f instead of "P[0].f"
for (; I != E; ++I) {
if (isa<StructType>(*I)) {
Out << ".field" << cast<ConstantInt>(I.getOperand())->getZExtValue();
+ } else if (isa<ArrayType>(*I)) {
+ Out << ".array[";
+ writeOperandWithCast(I.getOperand(), Instruction::GetElementPtr);
+ Out << ']';
} else if (!isa<VectorType>(*I)) {
Out << '[';
writeOperandWithCast(I.getOperand(), Instruction::GetElementPtr);
writeOperand(Operand);
if (BitMask) {
Out << ") & ";
- printConstant(BitMask);
+ printConstant(BitMask, false);
Out << ")";
}
}
void CWriter::visitGetElementPtrInst(GetElementPtrInst &I) {
printGEPExpression(I.getPointerOperand(), gep_type_begin(I),
- gep_type_end(I));
+ gep_type_end(I), false);
}
void CWriter::visitVAArgInst(VAArgInst &I) {
Out << "0";
} else {
printConstant(cast<ConstantVector>(Op)->getOperand(SrcVal &
- (NumElts-1)));
+ (NumElts-1)),
+ false);
}
}
}
Out << "}";
}
-void CWriter::visitGetResultInst(GetResultInst &GRI) {
+void CWriter::visitInsertValueInst(InsertValueInst &IVI) {
+ // Start by copying the entire aggregate value into the result variable.
+ writeOperand(IVI.getOperand(0));
+ Out << ";\n ";
+
+ // Then do the insert to update the field.
+ Out << GetValueName(&IVI);
+ for (const unsigned *b = IVI.idx_begin(), *i = b, *e = IVI.idx_end();
+ i != e; ++i) {
+ const Type *IndexedTy =
+ ExtractValueInst::getIndexedType(IVI.getOperand(0)->getType(), b, i+1);
+ if (isa<ArrayType>(IndexedTy))
+ Out << ".array[" << *i << "]";
+ else
+ Out << ".field" << *i;
+ }
+ Out << " = ";
+ writeOperand(IVI.getOperand(1));
+}
+
+void CWriter::visitExtractValueInst(ExtractValueInst &EVI) {
Out << "(";
- if (isa<UndefValue>(GRI.getOperand(0))) {
+ if (isa<UndefValue>(EVI.getOperand(0))) {
Out << "(";
- printType(Out, GRI.getType());
+ printType(Out, EVI.getType());
Out << ") 0/*UNDEF*/";
} else {
- Out << GetValueName(GRI.getOperand(0)) << ".field" << GRI.getIndex();
+ Out << GetValueName(EVI.getOperand(0));
+ for (const unsigned *b = EVI.idx_begin(), *i = b, *e = EVI.idx_end();
+ i != e; ++i) {
+ const Type *IndexedTy =
+ ExtractValueInst::getIndexedType(EVI.getOperand(0)->getType(), b, i+1);
+ if (isa<ArrayType>(IndexedTy))
+ Out << ".array[" << *i << "]";
+ else
+ Out << ".field" << *i;
+ }
}
Out << ")";
}
//===----------------------------------------------------------------------===//
bool CTargetMachine::addPassesToEmitWholeFile(PassManager &PM,
- std::ostream &o,
+ raw_ostream &o,
CodeGenFileType FileType,
- bool Fast) {
+ CodeGenOpt::Level OptLevel) {
if (FileType != TargetMachine::AssemblyFile) return true;
PM.add(createGCLoweringPass());
PM.add(createCFGSimplificationPass()); // clean up after lower invoke.
PM.add(new CBackendNameAllUsedStructsAndMergeFunctions());
PM.add(new CWriter(o));
- PM.add(createCollectorMetadataDeleter());
+ PM.add(createGCInfoDeleter());
return false;
}
projects / oota-llvm.git / blobdiff