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Implemented shl, shl, & load instructions

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2001-07-08 21:10:27 +00:00
parent 71496b3b50
commit 027dcc5b22
9 changed files with 963 additions and 722 deletions
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87
lib/Bytecode/Reader/InstructionReader.cpp
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@ -105,10 +105,15 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
getValue(Raw.Ty, Raw.Arg1),
getValue(Raw.Ty, Raw.Arg2));
return false;
} else if (Raw.Opcode == Instruction::Cast) {
}
Value *V;
switch (Raw.Opcode) {
case Instruction::Cast:
Res = new CastInst(getValue(Raw.Ty, Raw.Arg1), getType(Raw.Arg2));
return false;
} else if (Raw.Opcode == Instruction::PHINode) {
case Instruction::PHINode: {
PHINode *PN = new PHINode(Raw.Ty);
switch (Raw.NumOperands) {
case 0:
@ -137,13 +142,23 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
}
Res = PN;
return false;
} else if (Raw.Opcode == Instruction::Ret) {
}
case Instruction::Shl:
case Instruction::Shr:
Res = new ShiftInst((Instruction::OtherOps)Raw.Opcode,
getValue(Raw.Ty, Raw.Arg1),
getValue(Type::UByteTy, Raw.Arg2));
return false;
case Instruction::Ret:
if (Raw.NumOperands == 0) {
Res = new ReturnInst(); return false;
} else if (Raw.NumOperands == 1) {
Res = new ReturnInst(getValue(Raw.Ty, Raw.Arg1)); return false;
}
} else if (Raw.Opcode == Instruction::Br) {
break;
case Instruction::Br:
if (Raw.NumOperands == 1) {
Res = new BranchInst((BasicBlock*)getValue(Type::LabelTy, Raw.Arg1));
return false;
@ -153,7 +168,9 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
getValue(Type::BoolTy , Raw.Arg3));
return false;
}
} else if (Raw.Opcode == Instruction::Switch) {
break;
case Instruction::Switch: {
SwitchInst *I =
new SwitchInst(getValue(Raw.Ty, Raw.Arg1),
(BasicBlock*)getValue(Type::LabelTy, Raw.Arg2));
@ -173,7 +190,9 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
delete Raw.VarArgs;
return false;
} else if (Raw.Opcode == Instruction::Call) {
}
case Instruction::Call: {
Method *M = (Method*)getValue(Raw.Ty, Raw.Arg1);
if (M == 0) return true;
@ -204,22 +223,58 @@ bool BytecodeParser::ParseInstruction(const uchar *&Buf, const uchar *EndBuf,
Res = new CallInst(M, Params);
return false;
} else if (Raw.Opcode == Instruction::Malloc) {
}
case Instruction::Malloc:
if (Raw.NumOperands > 2) return true;
Value *Sz = Raw.NumOperands ? getValue(Type::UIntTy, Raw.Arg1) : 0;
Res = new MallocInst(Raw.Ty, Sz);
V = Raw.NumOperands ? getValue(Type::UIntTy, Raw.Arg1) : 0;
Res = new MallocInst(Raw.Ty, V);
return false;
} else if (Raw.Opcode == Instruction::Alloca) {
case Instruction::Alloca:
if (Raw.NumOperands > 2) return true;
Value *Sz = Raw.NumOperands ? getValue(Type::UIntTy, Raw.Arg1) : 0;
Res = new AllocaInst(Raw.Ty, Sz);
V = Raw.NumOperands ? getValue(Type::UIntTy, Raw.Arg1) : 0;
Res = new AllocaInst(Raw.Ty, V);
return false;
} else if (Raw.Opcode == Instruction::Free) {
Value *Val = getValue(Raw.Ty, Raw.Arg1);
if (!Val->getType()->isPointerType()) return true;
Res = new FreeInst(Val);
case Instruction::Free:
V = getValue(Raw.Ty, Raw.Arg1);
if (!V->getType()->isPointerType()) return true;
Res = new FreeInst(V);
return false;
case Instruction::Load: {
vector<ConstPoolVal*> Idx;
switch (Raw.NumOperands) {
case 0: cerr << "Invalid load encountered!\n"; return true;
case 1: break;
case 2: V = getValue(Type::UByteTy, Raw.Arg2);
if (!V->isConstant()) return true;
Idx.push_back(V->castConstant());
break;
case 3: V = getValue(Type::UByteTy, Raw.Arg2);
if (!V->isConstant()) return true;
Idx.push_back(V->castConstant());
V = getValue(Type::UByteTy, Raw.Arg3);
if (!V->isConstant()) return true;
Idx.push_back(V->castConstant());
break;
default:
V = getValue(Type::UByteTy, Raw.Arg2);
if (!V->isConstant()) return true;
Idx.push_back(V->castConstant());
vector<unsigned> &args = *Raw.VarArgs;
for (unsigned i = 0, E = args.size(); i != E; ++i) {
V = getValue(Type::UByteTy, args[i]);
if (!V->isConstant()) return true;
Idx.push_back(V->castConstant());
}
delete Raw.VarArgs;
break;
}
Res = new LoadInst(getValue(Raw.Ty, Raw.Arg1), Idx);
return false;
}
} // end switch(Raw.Opcode)
cerr << "Unrecognized instruction! " << Raw.Opcode
<< " ADDR = 0x" << (void*)Buf << endl;