#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
+#include "llvm/MDNode.h"
#include "llvm/Module.h"
+#include "llvm/Operator.h"
#include "llvm/TypeSymbolTable.h"
#include "llvm/ValueSymbolTable.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Streams.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/System/Program.h"
using namespace llvm;
/// These are manifest constants used by the bitcode writer. They do not need to
// FUNCTION_BLOCK abbrev id's.
FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
FUNCTION_INST_BINOP_ABBREV,
+ FUNCTION_INST_BINOP_FLAGS_ABBREV,
FUNCTION_INST_CAST_ABBREV,
FUNCTION_INST_RET_VOID_ABBREV,
FUNCTION_INST_RET_VAL_ABBREV,
static unsigned GetEncodedCastOpcode(unsigned Opcode) {
switch (Opcode) {
- default: assert(0 && "Unknown cast instruction!");
+ default: llvm_unreachable("Unknown cast instruction!");
case Instruction::Trunc : return bitc::CAST_TRUNC;
case Instruction::ZExt : return bitc::CAST_ZEXT;
case Instruction::SExt : return bitc::CAST_SEXT;
static unsigned GetEncodedBinaryOpcode(unsigned Opcode) {
switch (Opcode) {
- default: assert(0 && "Unknown binary instruction!");
- case Instruction::Add: return bitc::BINOP_ADD;
- case Instruction::Sub: return bitc::BINOP_SUB;
- case Instruction::Mul: return bitc::BINOP_MUL;
+ default: llvm_unreachable("Unknown binary instruction!");
+ case Instruction::Add:
+ case Instruction::FAdd: return bitc::BINOP_ADD;
+ case Instruction::Sub:
+ case Instruction::FSub: return bitc::BINOP_SUB;
+ case Instruction::Mul:
+ case Instruction::FMul: return bitc::BINOP_MUL;
case Instruction::UDiv: return bitc::BINOP_UDIV;
case Instruction::FDiv:
case Instruction::SDiv: return bitc::BINOP_SDIV;
}
// Emit information about parameter attributes.
-static void WriteParamAttrTable(const ValueEnumerator &VE,
+static void WriteAttributeTable(const ValueEnumerator &VE,
BitstreamWriter &Stream) {
- const std::vector<PAListPtr> &Attrs = VE.getParamAttrs();
+ const std::vector<AttrListPtr> &Attrs = VE.getAttributes();
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 PAListPtr &A = Attrs[i];
+ const AttrListPtr &A = Attrs[i];
for (unsigned i = 0, e = A.getNumSlots(); i != e; ++i) {
- const ParamAttrsWithIndex &PAWI = A.getSlot(i);
+ const AttributeWithIndex &PAWI = A.getSlot(i);
Record.push_back(PAWI.Index);
- Record.push_back(PAWI.Attrs);
+
+ // FIXME: remove in LLVM 3.0
+ // Store the alignment in the bitcode as a 16-bit raw value instead of a
+ // 5-bit log2 encoded value. Shift the bits above the alignment up by
+ // 11 bits.
+ uint64_t FauxAttr = PAWI.Attrs & 0xffff;
+ if (PAWI.Attrs & Attribute::Alignment)
+ FauxAttr |= (1ull<<16)<<(((PAWI.Attrs & Attribute::Alignment)-1) >> 16);
+ FauxAttr |= (PAWI.Attrs & (0x3FFull << 21)) << 11;
+
+ Record.push_back(FauxAttr);
}
Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY, Record);
unsigned Code = 0;
switch (T->getTypeID()) {
- default: assert(0 && "Unknown type!");
+ default: llvm_unreachable("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::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::MetadataTyID: Code = bitc::TYPE_CODE_METADATA; break;
case Type::IntegerTyID:
// INTEGER: [width]
Code = bitc::TYPE_CODE_INTEGER;
static unsigned getEncodedLinkage(const GlobalValue *GV) {
switch (GV->getLinkage()) {
- default: assert(0 && "Invalid linkage!");
+ default: llvm_unreachable("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::InternalLinkage: return 3;
- case GlobalValue::LinkOnceLinkage: return 4;
- case GlobalValue::DLLImportLinkage: return 5;
- case GlobalValue::DLLExportLinkage: return 6;
- case GlobalValue::ExternalWeakLinkage: return 7;
- case GlobalValue::CommonLinkage: return 8;
+ case GlobalValue::ExternalLinkage: return 0;
+ case GlobalValue::WeakAnyLinkage: return 1;
+ case GlobalValue::AppendingLinkage: return 2;
+ case GlobalValue::InternalLinkage: return 3;
+ case GlobalValue::LinkOnceAnyLinkage: return 4;
+ case GlobalValue::DLLImportLinkage: return 5;
+ case GlobalValue::DLLExportLinkage: return 6;
+ case GlobalValue::ExternalWeakLinkage: return 7;
+ case GlobalValue::CommonLinkage: return 8;
+ case GlobalValue::PrivateLinkage: return 9;
+ case GlobalValue::WeakODRLinkage: return 10;
+ case GlobalValue::LinkOnceODRLinkage: return 11;
+ case GlobalValue::AvailableExternallyLinkage: return 12;
+ case GlobalValue::LinkerPrivateLinkage: return 13;
}
}
static unsigned getEncodedVisibility(const GlobalValue *GV) {
switch (GV->getVisibility()) {
- default: assert(0 && "Invalid visibility!");
+ default: llvm_unreachable("Invalid visibility!");
case GlobalValue::DefaultVisibility: return 0;
case GlobalValue::HiddenVisibility: return 1;
case GlobalValue::ProtectedVisibility: return 2;
WriteStringRecord(bitc::MODULE_CODE_ASM, M->getModuleInlineAsm(),
0/*TODO*/, Stream);
- // Emit information about sections and collectors, computing how many there
- // are. Also compute the maximum alignment value.
+ // 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> CollectorMap;
+ 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();
Entry = SectionMap.size();
}
}
- if (F->hasCollector()) {
- // Same for collector names.
- unsigned &Entry = CollectorMap[F->getCollector()];
+ if (F->hasGC()) {
+ // Same for GC names.
+ unsigned &Entry = GCMap[F->getGC()];
if (!Entry) {
- WriteStringRecord(bitc::MODULE_CODE_COLLECTORNAME, F->getCollector(),
+ WriteStringRecord(bitc::MODULE_CODE_GCNAME, F->getGC(),
0/*TODO*/, Stream);
- Entry = CollectorMap.size();
+ Entry = GCMap.size();
}
}
}
// Emit the function proto information.
for (Module::const_iterator F = M->begin(), E = M->end(); F != E; ++F) {
// FUNCTION: [type, callingconv, isproto, paramattr,
- // linkage, alignment, section, visibility, collector]
+ // 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(VE.getAttributeID(F->getAttributes()));
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->hasCollector() ? CollectorMap[F->getCollector()] : 0);
+ Vals.push_back(F->hasGC() ? GCMap[F->getGC()] : 0);
unsigned AbbrevToUse = 0;
Stream.EmitRecord(bitc::MODULE_CODE_FUNCTION, Vals, AbbrevToUse);
}
}
+static uint64_t GetOptimizationFlags(const Value *V) {
+ uint64_t Flags = 0;
+
+ if (const OverflowingBinaryOperator *OBO =
+ dyn_cast<OverflowingBinaryOperator>(V)) {
+ if (OBO->hasNoSignedOverflow())
+ Flags |= 1 << bitc::OBO_NO_SIGNED_OVERFLOW;
+ if (OBO->hasNoUnsignedOverflow())
+ Flags |= 1 << bitc::OBO_NO_UNSIGNED_OVERFLOW;
+ } else if (const SDivOperator *Div = dyn_cast<SDivOperator>(V)) {
+ if (Div->isExact())
+ Flags |= 1 << bitc::SDIV_EXACT;
+ }
+
+ return Flags;
+}
+
+ static void WriteModuleMetadata(const ValueEnumerator &VE,
+ BitstreamWriter &Stream) {
+ const ValueEnumerator::ValueList &Vals = VE.getValues();
+ bool StartedMetadataBlock = false;
+ unsigned MDSAbbrev = 0;
+ for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
+ if (const MDString *MDS = dyn_cast<MDString>(Vals[i].first)) {
+ if (!StartedMetadataBlock) {
+ Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
+
+ // Abbrev for METADATA_STRING.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(bitc::METADATA_STRING));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
+ MDSAbbrev = Stream.EmitAbbrev(Abbv);
+ StartedMetadataBlock = true;
+ }
+
+ SmallVector<unsigned, 64> StrVals;
+ StrVals.clear();
+ // Code: [strchar x N]
+ const char *StrBegin = MDS->begin();
+ for (unsigned i = 0, e = MDS->size(); i != e; ++i)
+ StrVals.push_back(StrBegin[i]);
+
+ // Emit the finished record.
+ Stream.EmitRecord(bitc::METADATA_STRING, StrVals, MDSAbbrev);
+ }
+ }
+
+ if (StartedMetadataBlock)
+ Stream.ExitBlock();
+}
+
static void WriteConstants(unsigned FirstVal, unsigned LastVal,
const ValueEnumerator &VE,
const Type *LastTy = 0;
for (unsigned i = FirstVal; i != LastVal; ++i) {
const Value *V = Vals[i].first;
+ if (isa<MDString>(V))
+ continue;
// If we need to switch types, do so now.
if (V->getType() != LastTy) {
LastTy = V->getType();
Code = bitc::CST_CODE_FLOAT;
const Type *Ty = CFP->getType();
if (Ty == Type::FloatTy || Ty == Type::DoubleTy) {
- Record.push_back(CFP->getValueAPF().convertToAPInt().getZExtValue());
+ Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue());
} else if (Ty == Type::X86_FP80Ty) {
// api needed to prevent premature destruction
- APInt api = CFP->getValueAPF().convertToAPInt();
+ // bits are not in the same order as a normal i80 APInt, compensate.
+ APInt api = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = api.getRawData();
- Record.push_back(p[0]);
- Record.push_back((uint16_t)p[1]);
+ Record.push_back((p[1] << 48) | (p[0] >> 16));
+ Record.push_back(p[0] & 0xffffLL);
} else if (Ty == Type::FP128Ty || Ty == Type::PPC_FP128Ty) {
- APInt api = CFP->getValueAPF().convertToAPInt();
+ APInt api = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = api.getRawData();
Record.push_back(p[0]);
Record.push_back(p[1]);
Record.push_back(GetEncodedBinaryOpcode(CE->getOpcode()));
Record.push_back(VE.getValueID(C->getOperand(0)));
Record.push_back(VE.getValueID(C->getOperand(1)));
+ uint64_t Flags = GetOptimizationFlags(CE);
+ if (Flags != 0)
+ Record.push_back(Flags);
}
break;
case Instruction::GetElementPtr:
Record.push_back(VE.getValueID(C->getOperand(i)));
}
break;
- case Instruction::ExtractValue:
- Code = bitc::CST_CODE_CE_EXTRACTVAL;
- for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) {
- Record.push_back(VE.getTypeID(C->getOperand(i)->getType()));
- Record.push_back(VE.getValueID(C->getOperand(i)));
- }
- break;
- case Instruction::InsertValue:
- Code = bitc::CST_CODE_CE_INSERTVAL;
- for (unsigned i = 0, e = CE->getNumOperands(); i != e; ++i) {
- Record.push_back(VE.getTypeID(C->getOperand(i)->getType()));
- Record.push_back(VE.getValueID(C->getOperand(i)));
- }
- break;
case Instruction::Select:
Code = bitc::CST_CODE_CE_SELECT;
Record.push_back(VE.getValueID(C->getOperand(0)));
Record.push_back(VE.getValueID(C->getOperand(2)));
break;
case Instruction::ShuffleVector:
- Code = bitc::CST_CODE_CE_SHUFFLEVEC;
+ // If the return type and argument types are the same, this is a
+ // standard shufflevector instruction. If the types are different,
+ // then the shuffle is widening or truncating the input vectors, and
+ // the argument type must also be encoded.
+ if (C->getType() == C->getOperand(0)->getType()) {
+ Code = bitc::CST_CODE_CE_SHUFFLEVEC;
+ } else {
+ Code = bitc::CST_CODE_CE_SHUFVEC_EX;
+ 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)));
Record.push_back(VE.getValueID(C->getOperand(2)));
break;
case Instruction::ICmp:
case Instruction::FCmp:
- case Instruction::VICmp:
- case Instruction::VFCmp:
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(CE->getPredicate());
break;
}
+ } else if (const MDNode *N = dyn_cast<MDNode>(C)) {
+ Code = bitc::CST_CODE_MDNODE;
+ for (unsigned i = 0, e = N->getNumElements(); i != e; ++i) {
+ if (N->getElement(i)) {
+ Record.push_back(VE.getTypeID(N->getElement(i)->getType()));
+ Record.push_back(VE.getValueID(N->getElement(i)));
+ } else {
+ Record.push_back(VE.getTypeID(Type::VoidTy));
+ Record.push_back(0);
+ }
+ }
} else {
- assert(0 && "Unknown constant!");
+ llvm_unreachable("Unknown constant!");
}
Stream.EmitRecord(Code, Record, AbbrevToUse);
Record.clear();
/// 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,
+static bool PushValueAndType(const Value *V, unsigned InstID,
SmallVector<unsigned, 64> &Vals,
ValueEnumerator &VE) {
unsigned ValID = VE.getValueID(V);
AbbrevToUse = FUNCTION_INST_BINOP_ABBREV;
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(GetEncodedBinaryOpcode(I.getOpcode()));
+ uint64_t Flags = GetOptimizationFlags(&I);
+ if (Flags != 0) {
+ if (AbbrevToUse == FUNCTION_INST_BINOP_ABBREV)
+ AbbrevToUse = FUNCTION_INST_BINOP_FLAGS_ABBREV;
+ Vals.push_back(Flags);
+ }
}
break;
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
PushValueAndType(I.getOperand(i), InstID, Vals, VE);
break;
- case Instruction::ExtractValue:
+ case Instruction::ExtractValue: {
Code = bitc::FUNC_CODE_INST_EXTRACTVAL;
- for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
- PushValueAndType(I.getOperand(i), InstID, Vals, VE);
+ 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:
+ }
+ case Instruction::InsertValue: {
Code = bitc::FUNC_CODE_INST_INSERTVAL;
- for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
- PushValueAndType(I.getOperand(i), InstID, Vals, VE);
+ 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;
+ Code = bitc::FUNC_CODE_INST_VSELECT;
PushValueAndType(I.getOperand(1), InstID, Vals, VE);
Vals.push_back(VE.getValueID(I.getOperand(2)));
- Vals.push_back(VE.getValueID(I.getOperand(0)));
+ PushValueAndType(I.getOperand(0), InstID, Vals, VE);
break;
case Instruction::ExtractElement:
Code = bitc::FUNC_CODE_INST_EXTRACTELT;
break;
case Instruction::ICmp:
case Instruction::FCmp:
- case Instruction::VICmp:
- case Instruction::VFCmp:
- Code = bitc::FUNC_CODE_INST_CMP;
+ // compare returning Int1Ty or vector of Int1Ty
+ Code = bitc::FUNC_CODE_INST_CMP2;
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::GetResult:
- Code = bitc::FUNC_CODE_INST_GETRESULT;
- PushValueAndType(I.getOperand(0), InstID, Vals, VE);
- Vals.push_back(cast<GetResultInst>(I).getIndex());
- break;
case Instruction::Ret:
{
}
break;
case Instruction::Br:
- Code = bitc::FUNC_CODE_INST_BR;
- Vals.push_back(VE.getValueID(I.getOperand(0)));
- if (cast<BranchInst>(I).isConditional()) {
- Vals.push_back(VE.getValueID(I.getOperand(1)));
- Vals.push_back(VE.getValueID(I.getOperand(2)));
+ {
+ Code = bitc::FUNC_CODE_INST_BR;
+ BranchInst &II(cast<BranchInst>(I));
+ Vals.push_back(VE.getValueID(II.getSuccessor(0)));
+ if (II.isConditional()) {
+ Vals.push_back(VE.getValueID(II.getSuccessor(1)));
+ Vals.push_back(VE.getValueID(II.getCondition()));
+ }
}
break;
case Instruction::Switch:
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
case Instruction::Invoke: {
- const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
+ const InvokeInst *II = cast<InvokeInst>(&I);
+ const Value *Callee(II->getCalledValue());
+ const PointerType *PTy = cast<PointerType>(Callee->getType());
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
Code = bitc::FUNC_CODE_INST_INVOKE;
- const InvokeInst *II = cast<InvokeInst>(&I);
- Vals.push_back(VE.getParamAttrID(II->getParamAttrs()));
+ Vals.push_back(VE.getAttributeID(II->getAttributes()));
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
+ Vals.push_back(VE.getValueID(II->getNormalDest()));
+ Vals.push_back(VE.getValueID(II->getUnwindDest()));
+ PushValueAndType(Callee, InstID, Vals, VE);
// Emit value #'s for the fixed parameters.
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Code = bitc::FUNC_CODE_INST_CALL;
const CallInst *CI = cast<CallInst>(&I);
- Vals.push_back(VE.getParamAttrID(CI->getParamAttrs()));
+ Vals.push_back(VE.getAttributeID(CI->getAttributes()));
Vals.push_back((CI->getCallingConv() << 1) | unsigned(CI->isTailCall()));
PushValueAndType(CI->getOperand(0), InstID, Vals, VE); // Callee
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
Abbv) != VST_ENTRY_8_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // 7-bit fixed width VST_ENTRY strings.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7));
if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
Abbv) != VST_ENTRY_7_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // 6-bit char6 VST_ENTRY strings.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6));
if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
Abbv) != VST_ENTRY_6_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // 6-bit char6 VST_BBENTRY strings.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6));
if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
Abbv) != VST_BBENTRY_6_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
Log2_32_Ceil(VE.getTypes().size()+1)));
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
Abbv) != CONSTANTS_SETTYPE_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // INTEGER abbrev for CONSTANTS_BLOCK.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
Abbv) != CONSTANTS_INTEGER_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // CE_CAST abbrev for CONSTANTS_BLOCK.
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
Abbv) != CONSTANTS_CE_CAST_Abbrev)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // NULL abbrev for CONSTANTS_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_NULL));
if (Stream.EmitBlockInfoAbbrev(bitc::CONSTANTS_BLOCK_ID,
Abbv) != CONSTANTS_NULL_Abbrev)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
// FIXME: This should only use space for first class types!
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // volatile
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_LOAD_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // INST_BINOP abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_BINOP_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
+ }
+ { // INST_BINOP_FLAGS 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
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); // flags
+ if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
+ Abbv) != FUNCTION_INST_BINOP_FLAGS_ABBREV)
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // INST_CAST abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // opc
if (Stream.EmitBlockInfoAbbrev(bitc::FUNCTION_BLOCK_ID,
Abbv) != FUNCTION_INST_CAST_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // INST_RET abbrev for FUNCTION_BLOCK.
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!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
{ // INST_RET abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
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!");
+ llvm_unreachable("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!");
+ llvm_unreachable("Unexpected abbrev ordering!");
}
Stream.ExitBlock();
WriteBlockInfo(VE, Stream);
// Emit information about parameter attributes.
- WriteParamAttrTable(VE, Stream);
+ WriteAttributeTable(VE, Stream);
// Emit information describing all of the types in the module.
WriteTypeTable(VE, Stream);
// Emit top-level description of module, including target triple, inline asm,
// descriptors for global variables, and function prototype info.
WriteModuleInfo(M, VE, Stream);
-
+
+ // Emit metadata.
+ WriteModuleMetadata(VE, Stream);
+
// Emit constants.
WriteModuleConstants(VE, Stream);
- // If we have any aggregate values in the value table, purge them - these can
- // only be used to initialize global variables. Doing so makes the value
- // namespace smaller for code in functions.
- int NumNonAggregates = VE.PurgeAggregateValues();
- if (NumNonAggregates != -1) {
- SmallVector<unsigned, 1> Vals;
- Vals.push_back(NumNonAggregates);
- Stream.EmitRecord(bitc::MODULE_CODE_PURGEVALS, Vals);
- }
-
// Emit function bodies.
for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
if (!I->isDeclaration())
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.
void llvm::WriteBitcodeToFile(const Module *M, std::ostream &Out) {
+ raw_os_ostream RawOut(Out);
+ // If writing to stdout, set binary mode.
+ if (llvm::cout == Out)
+ sys::Program::ChangeStdoutToBinary();
+ WriteBitcodeToFile(M, RawOut);
+}
+
+/// WriteBitcodeToFile - Write the specified module to the specified output
+/// stream.
+void llvm::WriteBitcodeToFile(const Module *M, raw_ostream &Out) {
std::vector<unsigned char> Buffer;
BitstreamWriter Stream(Buffer);
Buffer.reserve(256*1024);
+
+ WriteBitcodeToStream( M, Stream );
+
+ // If writing to stdout, set binary mode.
+ if (&llvm::outs() == &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();
+}
+
+/// WriteBitcodeToStream - Write the specified module to the specified output
+/// stream.
+void llvm::WriteBitcodeToStream(const Module *M, BitstreamWriter &Stream) {
+ // 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);
// Emit the module.
WriteModule(M, Stream);
-
- // Write the generated bitstream to "Out".
- Out.write((char*)&Buffer.front(), Buffer.size());
-
- // Make sure it hits disk now.
- Out.flush();
+
+ if (isDarwin)
+ EmitDarwinBCTrailer(Stream, Stream.getBuffer().size());
}
projects / oota-llvm.git / blobdiff