Write and read metadata attachments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82259 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index b217c18..70d2fc5 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -830,6 +830,22 @@
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 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
I = ExtractValueInst::Create(Agg,
EXTRACTVALIdx.begin(), EXTRACTVALIdx.end());
+ InstructionList.push_back(I);
break;
}
@@ -1703,6 +1765,7 @@
I = InsertValueInst::Create(Agg, Val,
INSERTVALIdx.begin(), INSERTVALIdx.end());
+ InstructionList.push_back(I);
break;
}
@@ -1717,6 +1780,7 @@
return Error("Invalid SELECT record");
I = SelectInst::Create(Cond, TrueVal, FalseVal);
+ InstructionList.push_back(I);
break;
}
@@ -1743,6 +1807,7 @@
}
I = SelectInst::Create(Cond, TrueVal, FalseVal);
+ InstructionList.push_back(I);
break;
}
@@ -1753,6 +1818,7 @@
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 @@
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 @@
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 @@
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 @@
getValueTypePair(Record, OpNum, NextValueNo, Op);
unsigned Index = Record[1];
I = ExtractValueInst::Create(Op, Index);
+ InstructionList.push_back(I);
break;
}
@@ -1818,6 +1888,7 @@
unsigned Size = Record.size();
if (Size == 0) {
I = ReturnInst::Create(Context);
+ InstructionList.push_back(I);
break;
}
@@ -1837,15 +1908,18 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
if (!OpTy || !Op || !ResTy)
return Error("Invalid VAARG record");
I = new VAArgInst(Op, ResTy);
+ InstructionList.push_back(I);
break;
}
}