#include "llvm/DerivedTypes.h"
#include "llvm/InlineAsm.h"
#include "llvm/Instructions.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Metadata.h"
#include "llvm/Module.h"
#include "llvm/Operator.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;
/// be kept in sync with the reader, but need to be consistent within this file.
enum {
CurVersion = 0,
-
+
// VALUE_SYMTAB_BLOCK abbrev id's.
VST_ENTRY_8_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
VST_ENTRY_7_ABBREV,
VST_ENTRY_6_ABBREV,
VST_BBENTRY_6_ABBREV,
-
+
// CONSTANTS_BLOCK abbrev id's.
CONSTANTS_SETTYPE_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
CONSTANTS_INTEGER_ABBREV,
CONSTANTS_CE_CAST_Abbrev,
CONSTANTS_NULL_Abbrev,
-
+
// FUNCTION_BLOCK abbrev id's.
FUNCTION_INST_LOAD_ABBREV = bitc::FIRST_APPLICATION_ABBREV,
FUNCTION_INST_BINOP_ABBREV,
-static void WriteStringRecord(unsigned Code, const std::string &Str,
+static void WriteStringRecord(unsigned Code, const std::string &Str,
unsigned AbbrevToUse, BitstreamWriter &Stream) {
SmallVector<unsigned, 64> Vals;
-
+
// Code: [strchar x N]
for (unsigned i = 0, e = Str.size(); i != e; ++i)
Vals.push_back(Str[i]);
-
+
// Emit the finished record.
Stream.EmitRecord(Code, Vals, AbbrevToUse);
}
// Emit information about parameter attributes.
-static void WriteAttributeTable(const ValueEnumerator &VE,
+static void WriteAttributeTable(const ValueEnumerator &VE,
BitstreamWriter &Stream) {
const std::vector<AttrListPtr> &Attrs = VE.getAttributes();
if (Attrs.empty()) return;
-
+
Stream.EnterSubblock(bitc::PARAMATTR_BLOCK_ID, 3);
SmallVector<uint64_t, 64> Record;
Record.push_back(FauxAttr);
}
-
+
Stream.EmitRecord(bitc::PARAMATTR_CODE_ENTRY, Record);
Record.clear();
}
-
+
Stream.ExitBlock();
}
/// WriteTypeTable - Write out the type table for a module.
static void WriteTypeTable(const ValueEnumerator &VE, BitstreamWriter &Stream) {
const ValueEnumerator::TypeList &TypeList = VE.getTypes();
-
+
Stream.EnterSubblock(bitc::TYPE_BLOCK_ID, 4 /*count from # abbrevs */);
SmallVector<uint64_t, 64> TypeVals;
-
+
// Abbrev for TYPE_CODE_POINTER.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_POINTER));
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,
Log2_32_Ceil(VE.getTypes().size()+1)));
unsigned FunctionAbbrev = Stream.EmitAbbrev(Abbv);
-
+
// Abbrev for TYPE_CODE_STRUCT.
Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_STRUCT));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
Log2_32_Ceil(VE.getTypes().size()+1)));
unsigned StructAbbrev = Stream.EmitAbbrev(Abbv);
-
+
// Abbrev for TYPE_CODE_ARRAY.
Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::TYPE_CODE_ARRAY));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed,
Log2_32_Ceil(VE.getTypes().size()+1)));
unsigned ArrayAbbrev = Stream.EmitAbbrev(Abbv);
-
+
// Emit an entry count so the reader can reserve space.
TypeVals.push_back(TypeList.size());
Stream.EmitRecord(bitc::TYPE_CODE_NUMENTRY, TypeVals);
TypeVals.clear();
-
+
// Loop over all of the types, emitting each in turn.
for (unsigned i = 0, e = TypeList.size(); i != e; ++i) {
const Type *T = TypeList[i].first;
int AbbrevToUse = 0;
unsigned Code = 0;
-
+
switch (T->getTypeID()) {
default: llvm_unreachable("Unknown type!");
case Type::VoidTyID: Code = bitc::TYPE_CODE_VOID; break;
Stream.EmitRecord(Code, TypeVals, AbbrevToUse);
TypeVals.clear();
}
-
+
Stream.ExitBlock();
}
GV != E; ++GV) {
MaxAlignment = std::max(MaxAlignment, GV->getAlignment());
MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV->getType()));
-
+
if (!GV->hasSection()) continue;
// Give section names unique ID's.
unsigned &Entry = SectionMap[GV->getSection()];
}
}
}
-
+
// Emit abbrev for globals, now that we know # sections and max alignment.
unsigned SimpleGVarAbbrev = 0;
- if (!M->global_empty()) {
+ if (!M->global_empty()) {
// Add an abbrev for common globals with no visibility or thread localness.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR));
// Don't bother emitting vis + thread local.
SimpleGVarAbbrev = Stream.EmitAbbrev(Abbv);
}
-
+
// Emit the global variable information.
SmallVector<unsigned, 64> Vals;
for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end();
GV != E; ++GV) {
unsigned AbbrevToUse = 0;
- // GLOBALVAR: [type, isconst, initid,
+ // GLOBALVAR: [type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal]
Vals.push_back(VE.getTypeID(GV->getType()));
Vals.push_back(GV->isConstant());
Vals.push_back(getEncodedLinkage(GV));
Vals.push_back(Log2_32(GV->getAlignment())+1);
Vals.push_back(GV->hasSection() ? SectionMap[GV->getSection()] : 0);
- if (GV->isThreadLocal() ||
+ if (GV->isThreadLocal() ||
GV->getVisibility() != GlobalValue::DefaultVisibility) {
Vals.push_back(getEncodedVisibility(GV));
Vals.push_back(GV->isThreadLocal());
} else {
AbbrevToUse = SimpleGVarAbbrev;
}
-
+
Stream.EmitRecord(bitc::MODULE_CODE_GLOBALVAR, Vals, AbbrevToUse);
Vals.clear();
}
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.clear();
}
-
-
+
+
// Emit the alias information.
for (Module::const_alias_iterator AI = M->alias_begin(), E = M->alias_end();
AI != E; ++AI) {
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;
+ if (OBO->hasNoSignedWrap())
+ Flags |= 1 << bitc::OBO_NO_SIGNED_WRAP;
+ if (OBO->hasNoUnsignedWrap())
+ Flags |= 1 << bitc::OBO_NO_UNSIGNED_WRAP;
} else if (const SDivOperator *Div = dyn_cast<SDivOperator>(V)) {
if (Div->isExact())
Flags |= 1 << bitc::SDIV_EXACT;
unsigned MDSAbbrev = 0;
SmallVector<uint64_t, 64> Record;
for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
-
+
if (const MDNode *N = dyn_cast<MDNode>(Vals[i].first)) {
if (!StartedMetadataBlock) {
Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
} else 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));
MDSAbbrev = Stream.EmitAbbrev(Abbv);
StartedMetadataBlock = true;
}
-
+
// Code: [strchar x N]
- const char *StrBegin = MDS->begin();
- for (unsigned i = 0, e = MDS->length(); i != e; ++i)
- Record.push_back(StrBegin[i]);
-
+ Record.append(MDS->begin(), MDS->end());
+
// Emit the finished record.
Stream.EmitRecord(bitc::METADATA_STRING, Record, MDSAbbrev);
Record.clear();
// Write named metadata elements.
for (unsigned i = 0, e = NMD->getNumElements(); i != e; ++i) {
- if (NMD->getElement(i))
+ if (NMD->getElement(i))
Record.push_back(VE.getValueID(NMD->getElement(i)));
- else
+ else
Record.push_back(0);
}
Stream.EmitRecord(bitc::METADATA_NAMED_NODE, Record, 0);
Record.clear();
}
}
-
+
+ if (StartedMetadataBlock)
+ Stream.ExitBlock();
+}
+
+static void WriteMetadataAttachment(const Function &F,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream) {
+ bool StartedMetadataBlock = false;
+ SmallVector<uint64_t, 64> Record;
+
+ // Write metadata attachments
+ // METADATA_ATTACHMENT - [m x [value, [n x [id, mdnode]]]
+ MetadataContext &TheMetadata = F.getContext().getMetadata();
+ typedef SmallVector<std::pair<unsigned, TrackingVH<MDNode> >, 2> MDMapTy;
+ MDMapTy MDs;
+ 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) {
+ MDs.clear();
+ TheMetadata.getMDs(I, MDs);
+ bool RecordedInstruction = false;
+ for (MDMapTy::const_iterator PI = MDs.begin(), PE = MDs.end();
+ PI != PE; ++PI) {
+ if (RecordedInstruction == false) {
+ Record.push_back(VE.getInstructionID(I));
+ RecordedInstruction = true;
+ }
+ Record.push_back(PI->first);
+ Record.push_back(VE.getValueID(PI->second));
+ }
+ if (!Record.empty()) {
+ if (!StartedMetadataBlock) {
+ Stream.EnterSubblock(bitc::METADATA_ATTACHMENT_ID, 3);
+ StartedMetadataBlock = true;
+ }
+ Stream.EmitRecord(bitc::METADATA_ATTACHMENT, Record, 0);
+ Record.clear();
+ }
+ }
+
+ if (StartedMetadataBlock)
+ Stream.ExitBlock();
+}
+
+static void WriteModuleMetadataStore(const Module *M,
+ const ValueEnumerator &VE,
+ BitstreamWriter &Stream) {
+
+ bool StartedMetadataBlock = false;
+ SmallVector<uint64_t, 64> Record;
+
+ // Write metadata kinds
+ // METADATA_KIND - [n x [id, name]]
+ MetadataContext &TheMetadata = M->getContext().getMetadata();
+ SmallVector<std::pair<unsigned, StringRef>, 4> Names;
+ TheMetadata.getHandlerNames(Names);
+ for (SmallVector<std::pair<unsigned, StringRef>, 4>::iterator
+ I = Names.begin(),
+ E = Names.end(); I != E; ++I) {
+ Record.push_back(I->first);
+ StringRef KName = I->second;
+ for (unsigned i = 0, e = KName.size(); i != e; ++i)
+ Record.push_back(KName[i]);
+ if (!StartedMetadataBlock) {
+ Stream.EnterSubblock(bitc::METADATA_BLOCK_ID, 3);
+ StartedMetadataBlock = true;
+ }
+ Stream.EmitRecord(bitc::METADATA_KIND, Record, 0);
+ Record.clear();
+ }
+
if (StartedMetadataBlock)
- Stream.ExitBlock();
+ Stream.ExitBlock();
}
static void WriteConstants(unsigned FirstVal, unsigned LastVal,
const ValueEnumerator &VE,
BitstreamWriter &Stream, bool isGlobal) {
if (FirstVal == LastVal) return;
-
+
Stream.EnterSubblock(bitc::CONSTANTS_BLOCK_ID, 4);
unsigned AggregateAbbrev = 0;
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6));
CString6Abbrev = Stream.EmitAbbrev(Abbv);
- }
-
+ }
+
SmallVector<uint64_t, 64> Record;
const ValueEnumerator::ValueList &Vals = VE.getValues();
CONSTANTS_SETTYPE_ABBREV);
Record.clear();
}
-
+
if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
- Record.push_back(unsigned(IA->hasSideEffects()));
-
+ Record.push_back(unsigned(IA->hasSideEffects()) |
+ unsigned(IA->isAlignStack()) << 1);
+
// 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());
Code = bitc::CST_CODE_INTEGER;
AbbrevToUse = CONSTANTS_INTEGER_ABBREV;
} else { // Wide integers, > 64 bits in size.
- // We have an arbitrary precision integer value to write whose
- // bit width is > 64. However, in canonical unsigned integer
+ // We have an arbitrary precision integer value to write whose
+ // bit width is > 64. However, in canonical unsigned integer
// format it is likely that the high bits are going to be zero.
// So, we only write the number of active words.
- unsigned NWords = IV->getValue().getActiveWords();
+ unsigned NWords = IV->getValue().getActiveWords();
const uint64_t *RawWords = IV->getValue().getRawData();
for (unsigned i = 0; i != NWords; ++i) {
int64_t V = RawWords[i];
} else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
Code = bitc::CST_CODE_FLOAT;
const Type *Ty = CFP->getType();
- if (Ty == Type::getFloatTy(Ty->getContext()) ||
- Ty == Type::getDoubleTy(Ty->getContext())) {
+ if (Ty->isFloatTy() || Ty->isDoubleTy()) {
Record.push_back(CFP->getValueAPF().bitcastToAPInt().getZExtValue());
- } else if (Ty == Type::getX86_FP80Ty(Ty->getContext())) {
+ } else if (Ty->isX86_FP80Ty()) {
// api needed to prevent premature destruction
// 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[1] << 48) | (p[0] >> 16));
Record.push_back(p[0] & 0xffffLL);
- } else if (Ty == Type::getFP128Ty(Ty->getContext()) ||
- Ty == Type::getPPC_FP128Ty(Ty->getContext())) {
+ } else if (Ty->isFP128Ty() || Ty->isPPC_FP128Ty()) {
APInt api = CFP->getValueAPF().bitcastToAPInt();
const uint64_t *p = api.getRawData();
Record.push_back(p[0]);
unsigned char V = cast<ConstantInt>(C->getOperand(i))->getZExtValue();
Record.push_back(V);
isCStr7 &= (V & 128) == 0;
- if (isCStrChar6)
+ if (isCStrChar6)
isCStrChar6 = BitCodeAbbrevOp::isChar6(V);
}
-
+
if (isCStrChar6)
AbbrevToUse = CString6Abbrev;
else if (isCStr7)
static void WriteModuleConstants(const ValueEnumerator &VE,
BitstreamWriter &Stream) {
const ValueEnumerator::ValueList &Vals = VE.getValues();
-
+
// Find the first constant to emit, which is the first non-globalvalue value.
// We know globalvalues have been emitted by WriteModuleInfo.
for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
/// instruction ID, then it is a forward reference, and it also includes the
/// type ID.
static bool PushValueAndType(const Value *V, unsigned InstID,
- SmallVector<unsigned, 64> &Vals,
+ SmallVector<unsigned, 64> &Vals,
ValueEnumerator &VE) {
unsigned ValID = VE.getValueID(V);
Vals.push_back(ValID);
SmallVector<unsigned, 64> &Vals) {
unsigned Code = 0;
unsigned AbbrevToUse = 0;
+ VE.setInstructionID(&I);
switch (I.getOpcode()) {
default:
if (Instruction::isCast(I.getOpcode())) {
Vals.push_back(cast<CmpInst>(I).getPredicate());
break;
- case Instruction::Ret:
+ case Instruction::Ret:
{
Code = bitc::FUNC_CODE_INST_RET;
unsigned NumOperands = I.getNumOperands();
case Instruction::Br:
{
Code = bitc::FUNC_CODE_INST_BR;
- BranchInst &II(cast<BranchInst>(I));
+ BranchInst &II = cast<BranchInst>(I);
Vals.push_back(VE.getValueID(II.getSuccessor(0)));
if (II.isConditional()) {
Vals.push_back(VE.getValueID(II.getSuccessor(1)));
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
+ case Instruction::IndirectBr:
+ Code = bitc::FUNC_CODE_INST_INDIRECTBR;
+ Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
+ for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
+ Vals.push_back(VE.getValueID(I.getOperand(i)));
+ break;
+
case Instruction::Invoke: {
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;
-
+
Vals.push_back(VE.getAttributeID(II->getAttributes()));
Vals.push_back(II->getCallingConv());
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)
Vals.push_back(VE.getValueID(I.getOperand(i+3))); // fixed param.
Code = bitc::FUNC_CODE_INST_UNREACHABLE;
AbbrevToUse = FUNCTION_INST_UNREACHABLE_ABBREV;
break;
-
+
case Instruction::PHI:
Code = bitc::FUNC_CODE_INST_PHI;
Vals.push_back(VE.getTypeID(I.getType()));
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
-
- case Instruction::Malloc:
- Code = bitc::FUNC_CODE_INST_MALLOC;
- Vals.push_back(VE.getTypeID(I.getType()));
- Vals.push_back(VE.getValueID(I.getOperand(0))); // size.
- Vals.push_back(Log2_32(cast<MallocInst>(I).getAlignment())+1);
- break;
-
- case Instruction::Free:
- Code = bitc::FUNC_CODE_INST_FREE;
- PushValueAndType(I.getOperand(0), InstID, Vals, VE);
- break;
-
+
case Instruction::Alloca:
Code = bitc::FUNC_CODE_INST_ALLOCA;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // size.
Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1);
break;
-
+
case Instruction::Load:
Code = bitc::FUNC_CODE_INST_LOAD;
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());
break;
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
Code = bitc::FUNC_CODE_INST_CALL;
-
+
const CallInst *CI = cast<CallInst>(&I);
Vals.push_back(VE.getAttributeID(CI->getAttributes()));
Vals.push_back((CI->getCallingConv() << 1) | unsigned(CI->isTailCall()));
PushValueAndType(CI->getOperand(0), InstID, Vals, VE); // Callee
-
+
// Emit value #'s for the fixed parameters.
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i+1))); // fixed param.
-
+
// Emit type/value pairs for varargs params.
if (FTy->isVarArg()) {
unsigned NumVarargs = I.getNumOperands()-1-FTy->getNumParams();
Vals.push_back(VE.getTypeID(I.getType())); // restype.
break;
}
-
+
Stream.EmitRecord(Code, Vals, AbbrevToUse);
Vals.clear();
}
// FIXME: Set up the abbrev, we know how many values there are!
// FIXME: We know if the type names can use 7-bit ascii.
SmallVector<unsigned, 64> NameVals;
-
+
for (ValueSymbolTable::const_iterator SI = VST.begin(), SE = VST.end();
SI != SE; ++SI) {
-
+
const ValueName &Name = *SI;
-
+
// Figure out the encoding to use for the name.
bool is7Bit = true;
bool isChar6 = true;
for (const char *C = Name.getKeyData(), *E = C+Name.getKeyLength();
C != E; ++C) {
- if (isChar6)
+ if (isChar6)
isChar6 = BitCodeAbbrevOp::isChar6(*C);
if ((unsigned char)*C & 128) {
is7Bit = false;
break; // don't bother scanning the rest.
}
}
-
+
unsigned AbbrevToUse = VST_ENTRY_8_ABBREV;
-
+
// VST_ENTRY: [valueid, namechar x N]
// VST_BBENTRY: [bbid, namechar x N]
unsigned Code;
else if (is7Bit)
AbbrevToUse = VST_ENTRY_7_ABBREV;
}
-
+
NameVals.push_back(VE.getValueID(SI->getValue()));
for (const char *P = Name.getKeyData(),
*E = Name.getKeyData()+Name.getKeyLength(); P != E; ++P)
NameVals.push_back((unsigned char)*P);
-
+
// Emit the finished record.
Stream.EmitRecord(Code, NameVals, AbbrevToUse);
NameVals.clear();
}
/// WriteFunction - Emit a function body to the module stream.
-static void WriteFunction(const Function &F, ValueEnumerator &VE,
+static void WriteFunction(const Function &F, ValueEnumerator &VE,
BitstreamWriter &Stream) {
Stream.EnterSubblock(bitc::FUNCTION_BLOCK_ID, 4);
VE.incorporateFunction(F);
SmallVector<unsigned, 64> Vals;
-
+
// Emit the number of basic blocks, so the reader can create them ahead of
// time.
Vals.push_back(VE.getBasicBlocks().size());
Stream.EmitRecord(bitc::FUNC_CODE_DECLAREBLOCKS, Vals);
Vals.clear();
-
+
// 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.
+
+ // 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();
if (I->getType() != Type::getVoidTy(F.getContext()))
++InstID;
}
-
+
// Emit names for all the instructions etc.
WriteValueSymbolTable(F.getValueSymbolTable(), VE, Stream);
-
+
+ WriteMetadataAttachment(F, VE, Stream);
VE.purgeFunction();
Stream.ExitBlock();
}
const ValueEnumerator &VE,
BitstreamWriter &Stream) {
if (TST.empty()) return;
-
+
Stream.EnterSubblock(bitc::TYPE_SYMTAB_BLOCK_ID, 3);
-
+
// 7-bit fixed width VST_CODE_ENTRY strings.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7));
unsigned V7Abbrev = Stream.EmitAbbrev(Abbv);
-
+
SmallVector<unsigned, 64> NameVals;
-
- for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end();
+
+ for (TypeSymbolTable::const_iterator TI = TST.begin(), TE = TST.end();
TI != TE; ++TI) {
// TST_ENTRY: [typeid, namechar x N]
NameVals.push_back(VE.getTypeID(TI->second));
-
+
const std::string &Str = TI->first;
bool is7Bit = true;
for (unsigned i = 0, e = Str.size(); i != e; ++i) {
if (Str[i] & 128)
is7Bit = false;
}
-
+
// Emit the finished record.
Stream.EmitRecord(bitc::VST_CODE_ENTRY, NameVals, is7Bit ? V7Abbrev : 0);
NameVals.clear();
}
-
+
Stream.ExitBlock();
}
// instances: CONSTANTS_BLOCK, FUNCTION_BLOCK and VALUE_SYMTAB_BLOCK. Other
// blocks can defined their abbrevs inline.
Stream.EnterBlockInfoBlock(2);
-
+
{ // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
- if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
+ if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
Abbv) != VST_ENTRY_8_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
{ // 7-bit fixed width VST_ENTRY strings.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY));
Abbv) != VST_BBENTRY_6_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
-
-
+
+
+
{ // SETTYPE abbrev for CONSTANTS_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_SETTYPE));
Abbv) != CONSTANTS_SETTYPE_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
{ // INTEGER abbrev for CONSTANTS_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_INTEGER));
Abbv) != CONSTANTS_INTEGER_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
{ // CE_CAST abbrev for CONSTANTS_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::CST_CODE_CE_CAST));
Abbv) != CONSTANTS_NULL_Abbrev)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
// FIXME: This should only use space for first class types!
-
+
{ // INST_LOAD abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_LOAD));
Abbv) != FUNCTION_INST_CAST_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
{ // INST_RET abbrev for FUNCTION_BLOCK.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::FUNC_CODE_INST_RET));
Abbv) != FUNCTION_INST_UNREACHABLE_ABBREV)
llvm_unreachable("Unexpected abbrev ordering!");
}
-
+
Stream.ExitBlock();
}
/// WriteModule - Emit the specified module to the bitstream.
static void WriteModule(const Module *M, BitstreamWriter &Stream) {
Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3);
-
+
// Emit the version number if it is non-zero.
if (CurVersion) {
SmallVector<unsigned, 1> Vals;
Vals.push_back(CurVersion);
Stream.EmitRecord(bitc::MODULE_CODE_VERSION, Vals);
}
-
+
// Analyze the module, enumerating globals, functions, etc.
ValueEnumerator VE(M);
// Emit blockinfo, which defines the standard abbreviations etc.
WriteBlockInfo(VE, Stream);
-
+
// Emit information about parameter attributes.
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);
for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
if (!I->isDeclaration())
WriteFunction(*I, VE, Stream);
-
+
+ // Emit metadata.
+ WriteModuleMetadataStore(M, VE, Stream);
+
// Emit the type symbol table information.
WriteTypeSymbolTable(M->getTypeSymbolTable(), VE, Stream);
-
+
// Emit names for globals/functions etc.
WriteValueSymbolTable(M->getValueSymbolTable(), VE, Stream);
-
+
Stream.ExitBlock();
}
/// 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.
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.
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' &&
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);
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);
}
-/// 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();
}
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);
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