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Implement array indexing

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1337 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2001-11-26 16:54:55 +00:00
parent 6cdb0118e8
commit b2b12b4a62
1 changed files with 47 additions and 26 deletions
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73
lib/Bytecode/Reader/InstructionReader.cpp
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@ -348,30 +348,44 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
case Instruction::Load:
case Instruction::GetElementPtr: {
vector<ConstPoolVal*> Idx;
vector<Value*> Idx;
if (!isa<PointerType>(Raw.Ty)) return failure(true);
const CompositeType *TopTy =
dyn_cast<CompositeType>(cast<PointerType>(Raw.Ty)->getValueType());
switch (Raw.NumOperands) {
case 0: cerr << "Invalid load encountered!\n"; return failure(true);
case 1: break;
case 2: V = getValue(Type::UByteTy, Raw.Arg2);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
break;
case 3: V = getValue(Type::UByteTy, Raw.Arg2);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
V = getValue(Type::UByteTy, Raw.Arg3);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
break;
case 2:
if (!TopTy) return failure(true);
Idx.push_back(V = getValue(TopTy->getIndexType(), Raw.Arg2));
if (!V) return failure(true);
break;
case 3: {
if (!TopTy) return failure(true);
Idx.push_back(V = getValue(TopTy->getIndexType(), Raw.Arg2));
if (!V) return failure(true);
const Type *ETy = MemAccessInst::getIndexedType(Raw.Ty, Idx, true);
const CompositeType *ElTy = dyn_cast_or_null<CompositeType>(ETy);
if (!ElTy) return failure(true);
Idx.push_back(V = getValue(ElTy->getIndexType(), Raw.Arg3));
if (!V) return failure(true);
break;
}
default:
V = getValue(Type::UByteTy, Raw.Arg2);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
if (!TopTy) return failure(true);
Idx.push_back(V = getValue(TopTy->getIndexType(), Raw.Arg2));
if (!V) return failure(true);
vector<unsigned> &args = *Raw.VarArgs;
for (unsigned i = 0, E = args.size(); i != E; ++i) {
V = getValue(Type::UByteTy, args[i]);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
const Type *ETy = MemAccessInst::getIndexedType(Raw.Ty, Idx, true);
const CompositeType *ElTy = dyn_cast_or_null<CompositeType>(ETy);
if (!ElTy) return failure(true);
Idx.push_back(V = getValue(ElTy->getIndexType(), args[i]));
if (!V) return failure(true);
}
delete Raw.VarArgs;
break;
@ -388,21 +402,28 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
return false;
}
case Instruction::Store: {
vector<ConstPoolVal*> Idx;
vector<Value*> Idx;
if (!isa<PointerType>(Raw.Ty)) return failure(true);
const CompositeType *TopTy =
dyn_cast<CompositeType>(cast<PointerType>(Raw.Ty)->getValueType());
switch (Raw.NumOperands) {
case 0:
case 1: cerr << "Invalid store encountered!\n"; return failure(true);
case 2: break;
case 3: V = getValue(Type::UByteTy, Raw.Arg3);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
break;
case 3:
if (!TopTy) return failure(true);
Idx.push_back(V = getValue(TopTy->getIndexType(), Raw.Arg3));
if (!V) return failure(true);
break;
default:
vector<unsigned> &args = *Raw.VarArgs;
for (unsigned i = 0, E = args.size(); i != E; ++i) {
V = getValue(Type::UByteTy, args[i]);
if (!isa<ConstPoolVal>(V)) return failure(true);
Idx.push_back(cast<ConstPoolVal>(V));
const Type *ETy = MemAccessInst::getIndexedType(Raw.Ty, Idx, true);
const CompositeType *ElTy = dyn_cast_or_null<CompositeType>(ETy);
if (!ElTy) return failure(true);
Idx.push_back(V = getValue(ElTy->getIndexType(), args[i]));
if (!V) return failure(true);
}
delete Raw.VarArgs;
break;