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* Changes in PHI node structure


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2001-06-11 15:04:40 +00:00
parent c24d2088dc
commit ee976f3371
5 changed files with 68 additions and 38 deletions
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31
lib/Bytecode/Reader/InstructionReader.cpp
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@ -104,24 +104,29 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
} else if (Raw.Opcode == Instruction::PHINode) {
PHINode *PN = new PHINode(Raw.Ty);
switch (Raw.NumOperands) {
case 0: cerr << "Invalid phi node encountered!\n";
case 0:
case 1:
case 3: cerr << "Invalid phi node encountered!\n";
delete PN;
return true;
case 1: PN->addIncoming(getValue(Raw.Ty, Raw.Arg1)); break;
case 2: PN->addIncoming(getValue(Raw.Ty, Raw.Arg1));
PN->addIncoming(getValue(Raw.Ty, Raw.Arg2)); break;
case 3: PN->addIncoming(getValue(Raw.Ty, Raw.Arg1));
PN->addIncoming(getValue(Raw.Ty, Raw.Arg2));
PN->addIncoming(getValue(Raw.Ty, Raw.Arg3)); break;
case 2: PN->addIncoming(getValue(Raw.Ty, Raw.Arg1),
(BasicBlock*)getValue(Type::LabelTy, Raw.Arg2));
break;
default:
PN->addIncoming(getValue(Raw.Ty, Raw.Arg1));
PN->addIncoming(getValue(Raw.Ty, Raw.Arg2));
{
PN->addIncoming(getValue(Raw.Ty, Raw.Arg1),
(BasicBlock*)getValue(Type::LabelTy, Raw.Arg2));
if (Raw.VarArgs->size() & 1) {
cerr << "PHI Node with ODD number of arguments!\n";
delete PN;
return true;
} else {
vector<unsigned> &args = *Raw.VarArgs;
for (unsigned i = 0; i < args.size(); i++)
PN->addIncoming(getValue(Raw.Ty, args[i]));
for (unsigned i = 0; i < args.size(); i+=2)
PN->addIncoming(getValue(Raw.Ty, args[i]),
(BasicBlock*)getValue(Type::LabelTy, args[i+1]));
}
delete Raw.VarArgs;
delete Raw.VarArgs;
break;
}
Res = PN;
return false;