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[opaque pointer type] bitcode: add explicit callee type to invoke instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235735 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-04-24 18:06:06 +00:00
parent 1dd6b024a2
commit c5b1f0a49d
5 changed files with 33 additions and 18 deletions
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37
lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -3863,24 +3863,33 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
// INVOKE: [attrs, cc, normBB, unwindBB, fnty, op0,op1,op2, ...]
if (Record.size() < 4)
return Error("Invalid record");
AttributeSet PAL = getAttributes(Record[0]);
unsigned CCInfo = Record[1];
BasicBlock *NormalBB = getBasicBlock(Record[2]);
BasicBlock *UnwindBB = getBasicBlock(Record[3]);
unsigned OpNum = 0;
AttributeSet PAL = getAttributes(Record[OpNum++]);
unsigned CCInfo = Record[OpNum++];
BasicBlock *NormalBB = getBasicBlock(Record[OpNum++]);
BasicBlock *UnwindBB = getBasicBlock(Record[OpNum++]);
FunctionType *FTy = nullptr;
if (CCInfo >> 13 & 1 &&
!(FTy = dyn_cast<FunctionType>(getTypeByID(Record[OpNum++]))))
return Error("Explicit invoke type is not a function type");
unsigned OpNum = 4;
Value *Callee;
if (getValueTypePair(Record, OpNum, NextValueNo, Callee))
return Error("Invalid record");
PointerType *CalleeTy = dyn_cast<PointerType>(Callee->getType());
FunctionType *FTy = !CalleeTy ? nullptr :
dyn_cast<FunctionType>(CalleeTy->getElementType());
// Check that the right number of fixed parameters are here.
if (!FTy || !NormalBB || !UnwindBB ||
Record.size() < OpNum+FTy->getNumParams())
return Error("Invalid record");
if (!CalleeTy)
return Error("Callee is not a pointer");
if (!FTy) {
FTy = dyn_cast<FunctionType>(CalleeTy->getElementType());
if (!FTy)
return Error("Callee is not of pointer to function type");
} else if (CalleeTy->getElementType() != FTy)
return Error("Explicit invoke type does not match pointee type of "
"callee operand");
if (Record.size() < FTy->getNumParams() + OpNum)
return Error("Insufficient operands to call");
SmallVector<Value*, 16> Ops;
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i, ++OpNum) {
@ -3905,8 +3914,8 @@ std::error_code BitcodeReader::ParseFunctionBody(Function *F) {
I = InvokeInst::Create(Callee, NormalBB, UnwindBB, Ops);
InstructionList.push_back(I);
cast<InvokeInst>(I)->setCallingConv(
static_cast<CallingConv::ID>(CCInfo));
cast<InvokeInst>(I)
->setCallingConv(static_cast<CallingConv::ID>(~(1U << 13) & CCInfo));
cast<InvokeInst>(I)->setAttributes(PAL);
break;
}

8
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -1790,15 +1790,15 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
case Instruction::Invoke: {
const InvokeInst *II = cast<InvokeInst>(&I);
const Value *Callee(II->getCalledValue());
PointerType *PTy = cast<PointerType>(Callee->getType());
FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
const Value *Callee = II->getCalledValue();
FunctionType *FTy = II->getFunctionType();
Code = bitc::FUNC_CODE_INST_INVOKE;
Vals.push_back(VE.getAttributeID(II->getAttributes()));
Vals.push_back(II->getCallingConv());
Vals.push_back(II->getCallingConv() | 1 << 13);
Vals.push_back(VE.getValueID(II->getNormalDest()));
Vals.push_back(VE.getValueID(II->getUnwindDest()));
Vals.push_back(VE.getTypeID(FTy));
PushValueAndType(Callee, InstID, Vals, VE);
// Emit value #'s for the fixed parameters.