//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "ValueEnumerator.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
-#include "llvm/ParameterAttributes.h"
#include "llvm/TypeSymbolTable.h"
#include "llvm/ValueSymbolTable.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Streams.h"
+#include "llvm/System/Program.h"
using namespace llvm;
/// These are manifest constants used by the bitcode writer. They do not need to
CONSTANTS_NULL_Abbrev,
// FUNCTION_BLOCK abbrev id's.
- FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV
+ FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
+ FUNCTION_INST_BINOP_ABBREV,
+ FUNCTION_INST_CAST_ABBREV,
+ FUNCTION_INST_RET_VOID_ABBREV,
+ FUNCTION_INST_RET_VAL_ABBREV,
+ FUNCTION_INST_UNREACHABLE_ABBREV
};
// Emit information about parameter attributes.
static void WriteParamAttrTable(const ValueEnumerator &VE,
BitstreamWriter &Stream) {
- const std::vector<const ParamAttrsList*> &Attrs = VE.getParamAttrs();
+ const std::vector<PAListPtr> &Attrs = VE.getParamAttrs();
if (Attrs.empty()) return;
Stream.EnterSubblock(bitc::PARAMATTR_BLOCK_ID, 3);
SmallVector<uint64_t, 64> Record;
for (unsigned i = 0, e = Attrs.size(); i != e; ++i) {
- const ParamAttrsList *A = Attrs[i];
- for (unsigned op = 0, e = A->size(); op != e; ++op) {
- Record.push_back(A->getParamIndex(op));
- Record.push_back(A->getParamAttrsAtIndex(op));
+ const PAListPtr &A = Attrs[i];
+ for (unsigned i = 0, e = A.getNumSlots(); i != e; ++i) {
+ const ParamAttrsWithIndex &PAWI = A.getSlot(i);
+ Record.push_back(PAWI.Index);
+ Record.push_back(PAWI.Attrs);
}
Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY, Record);
Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_POINTER));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
Log2_32_Ceil(VE.getTypes().size()+1)));
+ Abbv->Add(BitCodeAbbrevOp(0)); // Addrspace = 0
unsigned PtrAbbrev = Stream.EmitAbbrev(Abbv);
// Abbrev for TYPE_CODE_FUNCTION.
Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_FUNCTION));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // isvararg
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
- Log2_32_Ceil(VE.getParamAttrs().size()+1)));
+ Abbv->Add(BitCodeAbbrevOp(0)); // FIXME: DEAD value, remove in LLVM 3.0
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
Log2_32_Ceil(VE.getTypes().size()+1)));
unsigned Code = 0;
switch (T->getTypeID()) {
- case Type::PackedStructTyID: // FIXME: Delete Type::PackedStructTyID.
default: assert(0 && "Unknown type!");
case Type::VoidTyID: Code = bitc::TYPE_CODE_VOID; break;
case Type::FloatTyID: Code = bitc::TYPE_CODE_FLOAT; break;
case Type::DoubleTyID: Code = bitc::TYPE_CODE_DOUBLE; break;
+ case Type::X86_FP80TyID: Code = bitc::TYPE_CODE_X86_FP80; break;
+ case Type::FP128TyID: Code = bitc::TYPE_CODE_FP128; break;
+ case Type::PPC_FP128TyID: Code = bitc::TYPE_CODE_PPC_FP128; break;
case Type::LabelTyID: Code = bitc::TYPE_CODE_LABEL; break;
case Type::OpaqueTyID: Code = bitc::TYPE_CODE_OPAQUE; break;
case Type::IntegerTyID:
Code = bitc::TYPE_CODE_INTEGER;
TypeVals.push_back(cast<IntegerType>(T)->getBitWidth());
break;
- case Type::PointerTyID:
- // POINTER: [pointee type]
+ case Type::PointerTyID: {
+ const PointerType *PTy = cast<PointerType>(T);
+ // POINTER: [pointee type, address space]
Code = bitc::TYPE_CODE_POINTER;
- TypeVals.push_back(VE.getTypeID(cast<PointerType>(T)->getElementType()));
- AbbrevToUse = PtrAbbrev;
+ TypeVals.push_back(VE.getTypeID(PTy->getElementType()));
+ unsigned AddressSpace = PTy->getAddressSpace();
+ TypeVals.push_back(AddressSpace);
+ if (AddressSpace == 0) AbbrevToUse = PtrAbbrev;
break;
-
+ }
case Type::FunctionTyID: {
const FunctionType *FT = cast<FunctionType>(T);
// FUNCTION: [isvararg, attrid, retty, paramty x N]
Code = bitc::TYPE_CODE_FUNCTION;
TypeVals.push_back(FT->isVarArg());
- TypeVals.push_back(VE.getParamAttrID(FT->getParamAttrs()));
+ TypeVals.push_back(0); // FIXME: DEAD: remove in llvm 3.0
TypeVals.push_back(VE.getTypeID(FT->getReturnType()));
for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i)
TypeVals.push_back(VE.getTypeID(FT->getParamType(i)));
static unsigned getEncodedLinkage(const GlobalValue *GV) {
switch (GV->getLinkage()) {
default: assert(0 && "Invalid linkage!");
+ case GlobalValue::GhostLinkage: // Map ghost linkage onto external.
case GlobalValue::ExternalLinkage: return 0;
case GlobalValue::WeakLinkage: return 1;
case GlobalValue::AppendingLinkage: return 2;
case GlobalValue::DLLImportLinkage: return 5;
case GlobalValue::DLLExportLinkage: return 6;
case GlobalValue::ExternalWeakLinkage: return 7;
+ case GlobalValue::CommonLinkage: return 8;
}
}
WriteStringRecord(bitc::MODULE_CODE_ASM, M->getModuleInlineAsm(),
0/*TODO*/, Stream);
- // Emit information about sections, computing how many there are. Also
+ // Emit information about sections and GC, computing how many there are. Also
// compute the maximum alignment value.
std::map<std::string, unsigned> SectionMap;
+ std::map<std::string, unsigned> GCMap;
unsigned MaxAlignment = 0;
unsigned MaxGlobalType = 0;
for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end();
}
for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) {
MaxAlignment = std::max(MaxAlignment, F->getAlignment());
- if (!F->hasSection()) continue;
- // Give section names unique ID's.
- unsigned &Entry = SectionMap[F->getSection()];
- if (Entry != 0) continue;
- WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F->getSection(),
- 0/*TODO*/, Stream);
- Entry = SectionMap.size();
+ if (F->hasSection()) {
+ // Give section names unique ID's.
+ unsigned &Entry = SectionMap[F->getSection()];
+ if (!Entry) {
+ WriteStringRecord(bitc::MODULE_CODE_SECTIONNAME, F->getSection(),
+ 0/*TODO*/, Stream);
+ Entry = SectionMap.size();
+ }
+ }
+ if (F->hasGC()) {
+ // Same for GC names.
+ unsigned &Entry = GCMap[F->getGC()];
+ if (!Entry) {
+ WriteStringRecord(bitc::MODULE_CODE_GCNAME, F->getGC(),
+ 0/*TODO*/, Stream);
+ Entry = GCMap.size();
+ }
+ }
}
// Emit abbrev for globals, now that we know # sections and max alignment.
Log2_32_Ceil(MaxGlobalType+1)));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer.
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Linkage.
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage.
if (MaxAlignment == 0) // Alignment.
Abbv->Add(BitCodeAbbrevOp(0));
else {
// Emit the function proto information.
for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) {
- // FUNCTION: [type, callingconv, isproto, linkage, alignment, section,
- // visibility]
+ // FUNCTION: [type, callingconv, isproto, paramattr,
+ // linkage, alignment, section, visibility, gc]
Vals.push_back(VE.getTypeID(F->getType()));
Vals.push_back(F->getCallingConv());
Vals.push_back(F->isDeclaration());
Vals.push_back(getEncodedLinkage(F));
+ Vals.push_back(VE.getParamAttrID(F->getParamAttrs()));
Vals.push_back(Log2_32(F->getAlignment())+1);
Vals.push_back(F->hasSection() ? SectionMap[F->getSection()] : 0);
Vals.push_back(getEncodedVisibility(F));
+ Vals.push_back(F->hasGC() ? GCMap[F->getGC()] : 0);
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse);
Vals.push_back(VE.getTypeID(AI->getType()));
Vals.push_back(VE.getValueID(AI->getAliasee()));
Vals.push_back(getEncodedLinkage(AI));
+ Vals.push_back(getEncodedVisibility(AI));
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_ALIAS, Vals, AbbrevToUse);
Vals.clear();
Stream.EnterSubblock(bitc::CONSTANTS_BLOCK_ID, 4);
unsigned AggregateAbbrev = 0;
- unsigned GEPAbbrev = 0;
+ unsigned String8Abbrev = 0;
+ unsigned CString7Abbrev = 0;
+ unsigned CString6Abbrev = 0;
// If this is a constant pool for the module, emit module-specific abbrevs.
if (isGlobal) {
// Abbrev for CST_CODE_AGGREGATE.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, Log2_32_Ceil(LastVal+1)));
AggregateAbbrev = Stream.EmitAbbrev(Abbv);
+
+ // Abbrev for CST_CODE_STRING.
+ Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_STRING));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
+ String8Abbrev = Stream.EmitAbbrev(Abbv);
+ // Abbrev for CST_CODE_CSTRING.
+ Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7));
+ CString7Abbrev = Stream.EmitAbbrev(Abbv);
+ // Abbrev for CST_CODE_CSTRING.
+ Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CSTRING));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6));
+ CString6Abbrev = Stream.EmitAbbrev(Abbv);
}
- // FIXME: Install and use abbrevs to reduce size. Install them globally so
- // they don't need to be reemitted for each function body.
-
SmallVector<uint64_t, 64> Record;
const ValueEnumerator::ValueList &Vals = VE.getValues();
}
if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
- assert(0 && IA && "FIXME: Inline asm writing unimp!");
+ Record.push_back(unsigned(IA->hasSideEffects()));
+
+ // Add the asm string.
+ const std::string &AsmStr = IA->getAsmString();
+ Record.push_back(AsmStr.size());
+ for (unsigned i = 0, e = AsmStr.size(); i != e; ++i)
+ Record.push_back(AsmStr[i]);
+
+ // Add the constraint string.
+ const std::string &ConstraintStr = IA->getConstraintString();
+ Record.push_back(ConstraintStr.size());
+ for (unsigned i = 0, e = ConstraintStr.size(); i != e; ++i)
+ Record.push_back(ConstraintStr[i]);
+ Stream.EmitRecord(bitc::CST_CODE_INLINEASM, Record);
+ Record.clear();
continue;
}
const Constant *C = cast<Constant>(V);
}
} else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
Code = bitc::CST_CODE_FLOAT;
- if (CFP->getType() == Type::FloatTy) {
- Record.push_back(FloatToBits((float)CFP->getValue()));
+ const Type *Ty = CFP->getType();
+ if (Ty == Type::FloatTy || Ty == Type::DoubleTy) {
+ Record.push_back(CFP->getValueAPF().convertToAPInt().getZExtValue());
+ } else if (Ty == Type::X86_FP80Ty) {
+ // api needed to prevent premature destruction
+ APInt api = CFP->getValueAPF().convertToAPInt();
+ const uint64_t *p = api.getRawData();
+ Record.push_back(p[0]);
+ Record.push_back((uint16_t)p[1]);
+ } else if (Ty == Type::FP128Ty || Ty == Type::PPC_FP128Ty) {
+ APInt api = CFP->getValueAPF().convertToAPInt();
+ const uint64_t *p = api.getRawData();
+ Record.push_back(p[0]);
+ Record.push_back(p[1]);
+ } else {
+ assert (0 && "Unknown FP type!");
+ }
+ } else if (isa<ConstantArray>(C) && cast<ConstantArray>(C)->isString()) {
+ // Emit constant strings specially.
+ unsigned NumOps = C->getNumOperands();
+ // If this is a null-terminated string, use the denser CSTRING encoding.
+ if (C->getOperand(NumOps-1)->isNullValue()) {
+ Code = bitc::CST_CODE_CSTRING;
+ --NumOps; // Don't encode the null, which isn't allowed by char6.
} else {
- assert (CFP->getType() == Type::DoubleTy && "Unknown FP type!");
- Record.push_back(DoubleToBits((double)CFP->getValue()));
+ Code = bitc::CST_CODE_STRING;
+ AbbrevToUse = String8Abbrev;
}
+ bool isCStr7 = Code == bitc::CST_CODE_CSTRING;
+ bool isCStrChar6 = Code == bitc::CST_CODE_CSTRING;
+ for (unsigned i = 0; i != NumOps; ++i) {
+ unsigned char V = cast<ConstantInt>(C->getOperand(i))->getZExtValue();
+ Record.push_back(V);
+ isCStr7 &= (V & 128) == 0;
+ if (isCStrChar6)
+ isCStrChar6 = BitCodeAbbrevOp::isChar6(V);
+ }
+
+ if (isCStrChar6)
+ AbbrevToUse = CString6Abbrev;
+ else if (isCStr7)
+ AbbrevToUse = CString7Abbrev;
} else if (isa<ConstantArray>(C) || isa<ConstantStruct>(V) ||
isa<ConstantVector>(V)) {
Code = bitc::CST_CODE_AGGREGATE;
Record.push_back(VE.getTypeID(C->getOperand(i)->getType()));
Record.push_back(VE.getValueID(C->getOperand(i)));
}
- AbbrevToUse = GEPAbbrev;
break;
case Instruction::Select:
Code = bitc::CST_CODE_CE_SELECT;
break;
case Instruction::ICmp:
case Instruction::FCmp:
- Code = bitc::CST_CODE_CE_CMP;
+ case Instruction::VICmp:
+ case Instruction::VFCmp:
+ if (isa<VectorType>(C->getOperand(0)->getType())
+ && (CE->getOpcode() == Instruction::ICmp
+ || CE->getOpcode() == Instruction::FCmp)) {
+ // compare returning vector of Int1Ty
+ assert(0 && "Unsupported constant!");
+ } else {
+ Code = bitc::CST_CODE_CE_CMP;
+ }
Record.push_back(VE.getTypeID(C->getOperand(0)->getType()));
Record.push_back(VE.getValueID(C->getOperand(0)));
Record.push_back(VE.getValueID(C->getOperand(1)));
}
}
+/// PushValueAndType - The file has to encode both the value and type id for
+/// many values, because we need to know what type to create for forward
+/// references. However, most operands are not forward references, so this type
+/// field is not needed.
+///
+/// This function adds V's value ID to Vals. If the value ID is higher than the
+/// instruction ID, then it is a forward reference, and it also includes the
+/// type ID.
+static bool PushValueAndType(Value *V, unsigned InstID,
+ SmallVector<unsigned, 64> &Vals,
+ ValueEnumerator &VE) {
+ unsigned ValID = VE.getValueID(V);
+ Vals.push_back(ValID);
+ if (ValID >= InstID) {
+ Vals.push_back(VE.getTypeID(V->getType()));
+ return true;
+ }
+ return false;
+}
+
/// WriteInstruction - Emit an instruction to the specified stream.
-static void WriteInstruction(const Instruction &I, ValueEnumerator &VE,
- BitstreamWriter &Stream,
+static void WriteInstruction(const Instruction &I, unsigned InstID,
+ ValueEnumerator &VE, BitstreamWriter &Stream,
SmallVector<unsigned, 64> &Vals) {
unsigned Code = 0;
unsigned AbbrevToUse = 0;
default:
if (Instruction::isCast(I.getOpcode())) {
Code = bitc::FUNC_CODE_INST_CAST;
- Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
+ AbbrevToUse = FUNCTION_INST_CAST_ABBREV;
Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
} else {
assert(isa<BinaryOperator>(I) && "Unknown instruction!");
Code = bitc::FUNC_CODE_INST_BINOP;
- Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
- Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
+ AbbrevToUse = FUNCTION_INST_BINOP_ABBREV;
Vals.push_back(VE.getValueID(I.getOperand(1)));
+ Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
}
break;
case Instruction::GetElementPtr:
Code = bitc::FUNC_CODE_INST_GEP;
- for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
- Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(i)));
- }
+ for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
+ PushValueAndType(I.getOperand(i), InstID, Vals, VE);
break;
+ case Instruction::ExtractValue: {
+ Code = bitc::FUNC_CODE_INST_EXTRACTVAL;
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
+ const ExtractValueInst *EVI = cast<ExtractValueInst>(&I);
+ for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
+ Vals.push_back(*i);
+ break;
+ }
+ case Instruction::InsertValue: {
+ Code = bitc::FUNC_CODE_INST_INSERTVAL;
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
+ PushValueAndType(I.getOperand(1), InstID, Vals, VE);
+ const InsertValueInst *IVI = cast<InsertValueInst>(&I);
+ for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
+ Vals.push_back(*i);
+ break;
+ }
case Instruction::Select:
- Code = bitc::FUNC_CODE_INST_SELECT;
- Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
- Vals.push_back(VE.getValueID(I.getOperand(1)));
+ Code = bitc::FUNC_CODE_INST_VSELECT;
+ PushValueAndType(I.getOperand(1), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(2)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
break;
case Instruction::ExtractElement:
Code = bitc::FUNC_CODE_INST_EXTRACTELT;
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
break;
case Instruction::InsertElement:
Code = bitc::FUNC_CODE_INST_INSERTELT;
- Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ShuffleVector:
Code = bitc::FUNC_CODE_INST_SHUFFLEVEC;
- Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ICmp:
case Instruction::FCmp:
- Code = bitc::FUNC_CODE_INST_CMP;
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ case Instruction::VICmp:
+ case Instruction::VFCmp:
+ if (I.getOpcode() == Instruction::ICmp
+ || I.getOpcode() == Instruction::FCmp) {
+ // compare returning Int1Ty or vector of Int1Ty
+ Code = bitc::FUNC_CODE_INST_CMP2;
+ } else {
+ Code = bitc::FUNC_CODE_INST_CMP;
+ }
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(cast<CmpInst>(I).getPredicate());
break;
- case Instruction::Ret:
- Code = bitc::FUNC_CODE_INST_RET;
- if (I.getNumOperands()) {
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ case Instruction::Ret:
+ {
+ Code = bitc::FUNC_CODE_INST_RET;
+ unsigned NumOperands = I.getNumOperands();
+ if (NumOperands == 0)
+ AbbrevToUse = FUNCTION_INST_RET_VOID_ABBREV;
+ else if (NumOperands == 1) {
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE))
+ AbbrevToUse = FUNCTION_INST_RET_VAL_ABBREV;
+ } else {
+ for (unsigned i = 0, e = NumOperands; i != e; ++i)
+ PushValueAndType(I.getOperand(i), InstID, Vals, VE);
+ }
}
break;
case Instruction::Br:
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
case Instruction::Invoke: {
+ const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
+ const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
Code = bitc::FUNC_CODE_INST_INVOKE;
- Vals.push_back(cast<InvokeInst>(I).getCallingConv());
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0))); // callee
- Vals.push_back(VE.getValueID(I.getOperand(1))); // normal
- Vals.push_back(VE.getValueID(I.getOperand(2))); // unwind
+
+ const InvokeInst *II = cast<InvokeInst>(&I);
+ Vals.push_back(VE.getParamAttrID(II->getParamAttrs()));
+ Vals.push_back(II->getCallingConv());
+ Vals.push_back(VE.getValueID(I.getOperand(1))); // normal dest
+ Vals.push_back(VE.getValueID(I.getOperand(2))); // unwind dest
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE); // callee
// Emit value #'s for the fixed parameters.
- const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
- const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i+3))); // fixed param.
// Emit type/value pairs for varargs params.
if (FTy->isVarArg()) {
- unsigned NumVarargs = I.getNumOperands()-3-FTy->getNumParams();
- for (unsigned i = I.getNumOperands()-NumVarargs, e = I.getNumOperands();
- i != e; ++i) {
- Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(i)));
- }
+ for (unsigned i = 3+FTy->getNumParams(), e = I.getNumOperands();
+ i != e; ++i)
+ PushValueAndType(I.getOperand(i), InstID, Vals, VE); // vararg
}
break;
}
break;
case Instruction::Unreachable:
Code = bitc::FUNC_CODE_INST_UNREACHABLE;
+ AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV;
break;
case Instruction::PHI:
case Instruction::Free:
Code = bitc::FUNC_CODE_INST_FREE;
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
break;
case Instruction::Alloca:
case Instruction::Load:
Code = bitc::FUNC_CODE_INST_LOAD;
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0))); // ptr.
+ if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr
+ AbbrevToUse = FUNCTION_INST_LOAD_ABBREV;
+
Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1);
Vals.push_back(cast<LoadInst>(I).isVolatile());
- AbbrevToUse = FUNCTION_INST_LOAD_ABBREV;
break;
case Instruction::Store:
- Code = bitc::FUNC_CODE_INST_STORE;
- Vals.push_back(VE.getTypeID(I.getOperand(1)->getType())); // Pointer
- Vals.push_back(VE.getValueID(I.getOperand(0))); // val.
- Vals.push_back(VE.getValueID(I.getOperand(1))); // ptr.
+ Code = bitc::FUNC_CODE_INST_STORE2;
+ PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr
+ Vals.push_back(VE.getValueID(I.getOperand(0))); // val.
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
break;
case Instruction::Call: {
+ const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
+ const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+
Code = bitc::FUNC_CODE_INST_CALL;
- Vals.push_back((cast<CallInst>(I).getCallingConv() << 1) |
- cast<CallInst>(I).isTailCall());
- Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0))); // callee
+
+ const CallInst *CI = cast<CallInst>(&I);
+ Vals.push_back(VE.getParamAttrID(CI->getParamAttrs()));
+ Vals.push_back((CI->getCallingConv() << 1) | unsigned(CI->isTailCall()));
+ PushValueAndType(CI->getOperand(0), InstID, Vals, VE); // Callee
// Emit value #'s for the fixed parameters.
- const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
- const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i+1))); // fixed param.
if (FTy->isVarArg()) {
unsigned NumVarargs = I.getNumOperands()-1-FTy->getNumParams();
for (unsigned i = I.getNumOperands()-NumVarargs, e = I.getNumOperands();
- i != e; ++i) {
- Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
- Vals.push_back(VE.getValueID(I.getOperand(i)));
- }
+ i != e; ++i)
+ PushValueAndType(I.getOperand(i), InstID, Vals, VE); // varargs
}
break;
}
/// WriteFunction - Emit a function body to the module stream.
static void WriteFunction(const Function &F, ValueEnumerator &VE,
BitstreamWriter &Stream) {
- Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 3);
+ Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4);
VE.incorporateFunction(F);
SmallVector<unsigned, 64> Vals;
Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals);
Vals.clear();
- // FIXME: Function attributes?
-
// If there are function-local constants, emit them now.
unsigned CstStart, CstEnd;
VE.getFunctionConstantRange(CstStart, CstEnd);
WriteConstants(CstStart, CstEnd, VE, Stream, false);
+ // Keep a running idea of what the instruction ID is.
+ unsigned InstID = CstEnd;
+
// Finally, emit all the instructions, in order.
for (Function::const_iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
- for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
- WriteInstruction(*I, VE, Stream, Vals);
+ for (BasicBlock::const_iterator I = BB->begin(), E = BB->end();
+ I != E; ++I) {
+ WriteInstruction(*I, InstID, VE, Stream, Vals);
+ if (I->getType() != Type::VoidTy)
+ ++InstID;
+ }
// Emit names for all the instructions etc.
WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream);
{ // INST_LOAD abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // typeid
- Log2_32_Ceil(VE.getTypes().size()+1)));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Ptr
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 4)); // Align
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile
Abbv) != FUNCTION_INST_LOAD_ABBREV)
assert(0 && "Unexpected abbrev ordering!");
}
+ { // INST_BINOP abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_BINOP));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // LHS
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // RHS
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_BINOP_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+ { // INST_CAST abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_CAST));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // OpVal
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, // dest ty
+ Log2_32_Ceil(VE.getTypes().size()+1)));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_CAST_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+
+ { // INST_RET abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_RET_VOID_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+ { // INST_RET abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ValID
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_RET_VAL_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+ { // INST_UNREACHABLE abbrev for FUNCTION_BLOCK.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_UNREACHABLE));
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
Stream.ExitBlock();
}
Stream.ExitBlock();
}
+/// EmitDarwinBCHeader - If generating a bc file on darwin, we have to emit a
+/// header and trailer to make it compatible with the system archiver. To do
+/// this we emit the following header, and then emit a trailer that pads the
+/// file out to be a multiple of 16 bytes.
+///
+/// struct bc_header {
+/// uint32_t Magic; // 0x0B17C0DE
+/// uint32_t Version; // Version, currently always 0.
+/// uint32_t BitcodeOffset; // Offset to traditional bitcode file.
+/// uint32_t BitcodeSize; // Size of traditional bitcode file.
+/// uint32_t CPUType; // CPU specifier.
+/// ... potentially more later ...
+/// };
+enum {
+ DarwinBCSizeFieldOffset = 3*4, // Offset to bitcode_size.
+ DarwinBCHeaderSize = 5*4
+};
+
+static void EmitDarwinBCHeader(BitstreamWriter &Stream,
+ const std::string &TT) {
+ unsigned CPUType = ~0U;
+
+ // Match x86_64-*, i[3-9]86-*, powerpc-*, powerpc64-*. The CPUType is a
+ // magic number from /usr/include/mach/machine.h. It is ok to reproduce the
+ // specific constants here because they are implicitly part of the Darwin ABI.
+ enum {
+ DARWIN_CPU_ARCH_ABI64 = 0x01000000,
+ DARWIN_CPU_TYPE_X86 = 7,
+ DARWIN_CPU_TYPE_POWERPC = 18
+ };
+
+ if (TT.find("x86_64-") == 0)
+ CPUType = DARWIN_CPU_TYPE_X86 | DARWIN_CPU_ARCH_ABI64;
+ else if (TT.size() >= 5 && TT[0] == 'i' && TT[2] == '8' && TT[3] == '6' &&
+ TT[4] == '-' && TT[1] - '3' < 6)
+ CPUType = DARWIN_CPU_TYPE_X86;
+ else if (TT.find("powerpc-") == 0)
+ CPUType = DARWIN_CPU_TYPE_POWERPC;
+ else if (TT.find("powerpc64-") == 0)
+ CPUType = DARWIN_CPU_TYPE_POWERPC | DARWIN_CPU_ARCH_ABI64;
+
+ // Traditional Bitcode starts after header.
+ unsigned BCOffset = DarwinBCHeaderSize;
+
+ Stream.Emit(0x0B17C0DE, 32);
+ Stream.Emit(0 , 32); // Version.
+ Stream.Emit(BCOffset , 32);
+ Stream.Emit(0 , 32); // Filled in later.
+ Stream.Emit(CPUType , 32);
+}
+
+/// EmitDarwinBCTrailer - Emit the darwin epilog after the bitcode file and
+/// finalize the header.
+static void EmitDarwinBCTrailer(BitstreamWriter &Stream, unsigned BufferSize) {
+ // Update the size field in the header.
+ Stream.BackpatchWord(DarwinBCSizeFieldOffset, BufferSize-DarwinBCHeaderSize);
+
+ // If the file is not a multiple of 16 bytes, insert dummy padding.
+ while (BufferSize & 15) {
+ Stream.Emit(0, 8);
+ ++BufferSize;
+ }
+}
+
/// WriteBitcodeToFile - Write the specified module to the specified output
/// stream.
Buffer.reserve(256*1024);
+ // If this is darwin, emit a file header and trailer if needed.
+ bool isDarwin = M->getTargetTriple().find("-darwin") != std::string::npos;
+ if (isDarwin)
+ EmitDarwinBCHeader(Stream, M->getTargetTriple());
+
// Emit the file header.
Stream.Emit((unsigned)'B', 8);
Stream.Emit((unsigned)'C', 8);
// Emit the module.
WriteModule(M, Stream);
+
+ if (isDarwin)
+ EmitDarwinBCTrailer(Stream, Buffer.size());
+
+ // If writing to stdout, set binary mode.
+ if (llvm::cout == Out)
+ sys::Program::ChangeStdoutToBinary();
+
// Write the generated bitstream to "Out".
Out.write((char*)&Buffer.front(), Buffer.size());
+
+ // Make sure it hits disk now.
+ Out.flush();
}
projects / oota-llvm.git / blobdiff