6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-12 13:38:21 +00:00
Code Issues Projects Releases Wiki Activity

Write and read metadata attachments.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82259 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2009-09-18 19:26:43 +00:00
parent 88d9839d07
commit e8e0213cc3
10 changed files with 256 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

92
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -830,6 +830,22 @@ bool BitcodeReader::ParseMetadata() {
MDValueList.AssignValue(V, NextValueNo++);
break;
}
case bitc::METADATA_KIND: {
unsigned RecordLength = Record.size();
if (Record.empty() || RecordLength < 2)
return Error("Invalid METADATA_KIND record");
SmallString<8> Name;
Name.resize(RecordLength-1);
MDKindID Kind = Record[0];
for (unsigned i = 1; i != RecordLength; ++i)
Name[i-1] = Record[i];
Metadata &TheMetadata = Context.getMetadata();
assert(TheMetadata.MDHandlerNames.find(Name.str())
== TheMetadata.MDHandlerNames.end() &&
"Already registered MDKind!");
TheMetadata.MDHandlerNames[Name.str()] = Kind;
break;
}
}
}
}
@ -1535,6 +1551,45 @@ bool BitcodeReader::ParseBitcode() {
return false;
}
/// ParseMetadataAttachment - Parse metadata attachments.
bool BitcodeReader::ParseMetadataAttachment() {
if (Stream.EnterSubBlock(bitc::METADATA_ATTACHMENT_ID))
return Error("Malformed block record");
Metadata &TheMetadata = Context.getMetadata();
SmallVector<uint64_t, 64> Record;
while(1) {
unsigned Code = Stream.ReadCode();
if (Code == bitc::END_BLOCK) {
if (Stream.ReadBlockEnd())
return Error("Error at end of PARAMATTR block");
break;
}
if (Code == bitc::DEFINE_ABBREV) {
Stream.ReadAbbrevRecord();
continue;
}
// Read a metadata attachment record.
Record.clear();
switch (Stream.ReadRecord(Code, Record)) {
default: // Default behavior: ignore.
break;
case bitc::METADATA_ATTACHMENT: {
unsigned RecordLength = Record.size();
if (Record.empty() || (RecordLength - 1) % 2 == 1)
return Error ("Invalid METADATA_ATTACHMENT reader!");
Instruction *Inst = InstructionList[Record[0]];
for (unsigned i = 1; i != RecordLength; i = i+2) {
MDKindID Kind = Record[i];
Value *Node = MDValueList.getValueFwdRef(Record[i+1]);
TheMetadata.setMD(Kind, cast<MDNode>(Node), Inst);
}
break;
}
}
}
return false;
}
/// ParseFunctionBody - Lazily parse the specified function body block.
bool BitcodeReader::ParseFunctionBody(Function *F) {
@ -1574,6 +1629,9 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
case bitc::VALUE_SYMTAB_BLOCK_ID:
if (ParseValueSymbolTable()) return true;
break;
case bitc::METADATA_ATTACHMENT_ID:
if (ParseMetadataAttachment()) return true;
break;
}
continue;
}
@ -1611,6 +1669,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
int Opc = GetDecodedBinaryOpcode(Record[OpNum++], LHS->getType());
if (Opc == -1) return Error("Invalid BINOP record");
I = BinaryOperator::Create((Instruction::BinaryOps)Opc, LHS, RHS);
InstructionList.push_back(I);
if (OpNum < Record.size()) {
if (Opc == Instruction::Add ||
Opc == Instruction::Sub ||
@ -1638,6 +1697,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
if (Opc == -1 || ResTy == 0)
return Error("Invalid CAST record");
I = CastInst::Create((Instruction::CastOps)Opc, Op, ResTy);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_INBOUNDS_GEP:
@ -1656,6 +1716,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
}
I = GetElementPtrInst::Create(BasePtr, GEPIdx.begin(), GEPIdx.end());
InstructionList.push_back(I);
if (BitCode == bitc::FUNC_CODE_INST_INBOUNDS_GEP)
cast<GetElementPtrInst>(I)->setIsInBounds(true);
break;
@ -1679,6 +1740,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = ExtractValueInst::Create(Agg,
EXTRACTVALIdx.begin(), EXTRACTVALIdx.end());
InstructionList.push_back(I);
break;
}
@ -1703,6 +1765,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = InsertValueInst::Create(Agg, Val,
INSERTVALIdx.begin(), INSERTVALIdx.end());
InstructionList.push_back(I);
break;
}
@ -1717,6 +1780,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid SELECT record");
I = SelectInst::Create(Cond, TrueVal, FalseVal);
InstructionList.push_back(I);
break;
}
@ -1743,6 +1807,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
}
I = SelectInst::Create(Cond, TrueVal, FalseVal);
InstructionList.push_back(I);
break;
}
@ -1753,6 +1818,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
getValue(Record, OpNum, Type::getInt32Ty(Context), Idx))
return Error("Invalid EXTRACTELT record");
I = ExtractElementInst::Create(Vec, Idx);
InstructionList.push_back(I);
break;
}
@ -1765,6 +1831,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
getValue(Record, OpNum, Type::getInt32Ty(Context), Idx))
return Error("Invalid INSERTELT record");
I = InsertElementInst::Create(Vec, Elt, Idx);
InstructionList.push_back(I);
break;
}
@ -1778,6 +1845,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
if (getValueTypePair(Record, OpNum, NextValueNo, Mask))
return Error("Invalid SHUFFLEVEC record");
I = new ShuffleVectorInst(Vec1, Vec2, Mask);
InstructionList.push_back(I);
break;
}
@ -1799,6 +1867,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = new FCmpInst((FCmpInst::Predicate)Record[OpNum], LHS, RHS);
else
I = new ICmpInst((ICmpInst::Predicate)Record[OpNum], LHS, RHS);
InstructionList.push_back(I);
break;
}
@ -1810,6 +1879,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
getValueTypePair(Record, OpNum, NextValueNo, Op);
unsigned Index = Record[1];
I = ExtractValueInst::Create(Op, Index);
InstructionList.push_back(I);
break;
}
@ -1818,6 +1888,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
unsigned Size = Record.size();
if (Size == 0) {
I = ReturnInst::Create(Context);
InstructionList.push_back(I);
break;
}
@ -1837,15 +1908,18 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
Value *RV = UndefValue::get(ReturnType);
for (unsigned i = 0, e = Vs.size(); i != e; ++i) {
I = InsertValueInst::Create(RV, Vs[i], i, "mrv");
InstructionList.push_back(I);
CurBB->getInstList().push_back(I);
ValueList.AssignValue(I, NextValueNo++);
RV = I;
}
I = ReturnInst::Create(Context, RV);
InstructionList.push_back(I);
break;
}
I = ReturnInst::Create(Context, Vs[0]);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_BR: { // BR: [bb#, bb#, opval] or [bb#]
@ -1855,14 +1929,17 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
if (TrueDest == 0)
return Error("Invalid BR record");
if (Record.size() == 1)
if (Record.size() == 1) {
I = BranchInst::Create(TrueDest);
InstructionList.push_back(I);
}
else {
BasicBlock *FalseDest = getBasicBlock(Record[1]);
Value *Cond = getFnValueByID(Record[2], Type::getInt1Ty(Context));
if (FalseDest == 0 || Cond == 0)
return Error("Invalid BR record");
I = BranchInst::Create(TrueDest, FalseDest, Cond);
InstructionList.push_back(I);
}
break;
}
@ -1876,6 +1953,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid SWITCH record");
unsigned NumCases = (Record.size()-3)/2;
SwitchInst *SI = SwitchInst::Create(Cond, Default, NumCases);
InstructionList.push_back(SI);
for (unsigned i = 0, e = NumCases; i != e; ++i) {
ConstantInt *CaseVal =
dyn_cast_or_null<ConstantInt>(getFnValueByID(Record[3+i*2], OpTy));
@ -1933,6 +2011,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
I = InvokeInst::Create(Callee, NormalBB, UnwindBB,
Ops.begin(), Ops.end());
InstructionList.push_back(I);
cast<InvokeInst>(I)->setCallingConv(
static_cast<CallingConv::ID>(CCInfo));
cast<InvokeInst>(I)->setAttributes(PAL);
@ -1940,9 +2019,11 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
}
case bitc::FUNC_CODE_INST_UNWIND: // UNWIND
I = new UnwindInst(Context);
InstructionList.push_back(I);
break;
case bitc::FUNC_CODE_INST_UNREACHABLE: // UNREACHABLE
I = new UnreachableInst(Context);
InstructionList.push_back(I);
break;
case bitc::FUNC_CODE_INST_PHI: { // PHI: [ty, val0,bb0, ...]
if (Record.size() < 1 || ((Record.size()-1)&1))
@ -1951,6 +2032,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
if (!Ty) return Error("Invalid PHI record");
PHINode *PN = PHINode::Create(Ty);
InstructionList.push_back(PN);
PN->reserveOperandSpace((Record.size()-1)/2);
for (unsigned i = 0, e = Record.size()-1; i != e; i += 2) {
@ -1972,6 +2054,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
unsigned Align = Record[2];
if (!Ty || !Size) return Error("Invalid MALLOC record");
I = new MallocInst(Ty->getElementType(), Size, (1 << Align) >> 1);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_FREE: { // FREE: [op, opty]
@ -1981,6 +2064,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
OpNum != Record.size())
return Error("Invalid FREE record");
I = new FreeInst(Op);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_ALLOCA: { // ALLOCA: [instty, op, align]
@ -1992,6 +2076,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
unsigned Align = Record[2];
if (!Ty || !Size) return Error("Invalid ALLOCA record");
I = new AllocaInst(Ty->getElementType(), Size, (1 << Align) >> 1);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_LOAD: { // LOAD: [opty, op, align, vol]
@ -2002,6 +2087,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid LOAD record");
I = new LoadInst(Op, "", Record[OpNum+1], (1 << Record[OpNum]) >> 1);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_STORE2: { // STORE2:[ptrty, ptr, val, align, vol]
@ -2014,6 +2100,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid STORE record");
I = new StoreInst(Val, Ptr, Record[OpNum+1], (1 << Record[OpNum]) >> 1);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_STORE: { // STORE:[val, valty, ptr, align, vol]
@ -2027,6 +2114,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
return Error("Invalid STORE record");
I = new StoreInst(Val, Ptr, Record[OpNum+1], (1 << Record[OpNum]) >> 1);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_CALL: {
@ -2072,6 +2160,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
}
I = CallInst::Create(Callee, Args.begin(), Args.end());
InstructionList.push_back(I);
cast<CallInst>(I)->setCallingConv(
static_cast<CallingConv::ID>(CCInfo>>1));
cast<CallInst>(I)->setTailCall(CCInfo & 1);
@ -2087,6 +2176,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
if (!OpTy || !Op || !ResTy)
return Error("Invalid VAARG record");
I = new VAArgInst(Op, ResTy);
InstructionList.push_back(I);
break;
}
}

3
lib/Bitcode/Reader/BitcodeReader.h
View File

@ -132,6 +132,8 @@ class BitcodeReader : public ModuleProvider {
std::vector<PATypeHolder> TypeList;
BitcodeReaderValueList ValueList;
BitcodeReaderMDValueList MDValueList;
SmallVector<Instruction *, 64> InstructionList;
std::vector<std::pair<GlobalVariable*, unsigned> > GlobalInits;
std::vector<std::pair<GlobalAlias*, unsigned> > AliasInits;
@ -250,6 +252,7 @@ private:
bool ParseFunctionBody(Function *F);
bool ResolveGlobalAndAliasInits();
bool ParseMetadata();
bool ParseMetadataAttachment();
};
} // End llvm namespace