maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

encode all of the instructions. 

llvm-svn: 36609
This commit is contained in:
Chris Lattner 2007-05-01 02:13:26 +00:00
parent 20f0d2e290
commit 0a60325621
1 changed files with 166 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

169
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -485,13 +485,12 @@ static void WriteModuleConstants(const ValueEnumerator &VE,
static void WriteInstruction(const Instruction &I, ValueEnumerator &VE,
BitstreamWriter &Stream,
SmallVector<unsigned, 64> &Vals) {
return; // FIXME: REMOVE
unsigned Code = 0;
unsigned AbbrevToUse = 0;
switch (I.getOpcode()) {
default:
if (Instruction::isCast(I.getOpcode())) {
Code = bitc::FUNC_CODE_INST_BINOP;
Code = bitc::FUNC_CODE_INST_CAST;
Vals.push_back(GetEncodedCastOpcode(I.getOpcode()));
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
@ -505,15 +504,179 @@ static void WriteInstruction(const Instruction &I, ValueEnumerator &VE,
Vals.push_back(VE.getValueID(I.getOperand(1)));
}
break;
case Instruction::GetElementPtr:
Code = bitc::FUNC_CODE_INST_GEP;
Vals.push_back(I.getNumOperands());
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(i)));
}
break;
case Instruction::Select:
Code = bitc::FUNC_CODE_INST_SELECT;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ExtractElement:
Code = bitc::FUNC_CODE_INST_EXTRACTELT;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
break;
case Instruction::InsertElement:
Code = bitc::FUNC_CODE_INST_INSERTELT;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ShuffleVector:
Code = bitc::FUNC_CODE_INST_SHUFFLEVEC;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
break;
case Instruction::ICmp:
case Instruction::FCmp:
Code = bitc::FUNC_CODE_INST_CMP;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(cast<CmpInst>(I).getPredicate());
break;
case Instruction::Ret:
Code = bitc::FUNC_CODE_INST_RET;
if (I.getNumOperands()) {
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
}
break;
case Instruction::Br:
Code = bitc::FUNC_CODE_INST_BR;
Vals.push_back(VE.getValueID(I.getOperand(0)));
if (cast<BranchInst>(I).isConditional()) {
Vals.push_back(VE.getValueID(I.getOperand(1)));
Vals.push_back(VE.getValueID(I.getOperand(2)));
}
break;
case Instruction::Switch:
Code = bitc::FUNC_CODE_INST_SWITCH;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(I.getNumOperands());
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
case Instruction::Invoke:
Code = bitc::FUNC_CODE_INST_INVOKE;
// FIXME: param attrs
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // callee
Vals.push_back(VE.getValueID(I.getOperand(1))); // normal
Vals.push_back(VE.getValueID(I.getOperand(2))); // unwind
// Emit value #'s for the fixed parameters.
const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i+3))); // fixed param.
// Emit type/value pairs for varargs params.
if (FTy->isVarArg()) {
unsigned NumVarargs = I.getNumOperands()-3-FTy->getNumParams();
Vals.push_back(NumVarargs);
for (unsigned i = I.getNumOperands()-NumVarargs, e = I.getNumOperands();
i != e; ++i) {
Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(i)));
}
}
break;
case Instruction::Unwind:
Code = bitc::FUNC_CODE_INST_UNWIND;
break;
case Instruction::Unreachable:
Code = bitc::FUNC_CODE_INST_UNREACHABLE;
break;
case Instruction::PHI:
Code = bitc::FUNC_CODE_INST_PHI;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(I.getNumOperands());
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i)));
break;
case Instruction::Malloc:
Code = bitc::FUNC_CODE_INST_MALLOC;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // size.
Vals.push_back(Log2_32(cast<MallocInst>(I).getAlignment())+1);
break;
case Instruction::Free:
Code = bitc::FUNC_CODE_INST_FREE;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0)));
break;
case Instruction::Alloca:
Code = bitc::FUNC_CODE_INST_ALLOCA;
Vals.push_back(VE.getTypeID(I.getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // size.
Vals.push_back(Log2_32(cast<AllocaInst>(I).getAlignment())+1);
break;
case Instruction::Load:
Code = bitc::FUNC_CODE_INST_LOAD;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // ptr.
Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1);
Vals.push_back(cast<LoadInst>(I).isVolatile());
break;
case Instruction::Store:
Code = bitc::FUNC_CODE_INST_STORE;
Vals.push_back(VE.getTypeID(I.getOperand(1)->getType())); // Pointer
Vals.push_back(VE.getValueID(I.getOperand(0))); // val.
Vals.push_back(VE.getValueID(I.getOperand(1))); // ptr.
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
break;
case Instruction::Call: {
Code = bitc::FUNC_CODE_INST_CALL;
// FIXME: param attrs
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(0))); // callee
// Emit value #'s for the fixed parameters.
const PointerType *PTy = cast<PointerType>(I.getOperand(0)->getType());
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
for (unsigned i = 0, e = FTy->getNumParams(); i != e; ++i)
Vals.push_back(VE.getValueID(I.getOperand(i+1))); // fixed param.
// Emit type/value pairs for varargs params.
if (FTy->isVarArg()) {
unsigned NumVarargs = I.getNumOperands()-1-FTy->getNumParams();
Vals.push_back(NumVarargs);
for (unsigned i = I.getNumOperands()-NumVarargs, e = I.getNumOperands();
i != e; ++i) {
Vals.push_back(VE.getTypeID(I.getOperand(i)->getType()));
Vals.push_back(VE.getValueID(I.getOperand(i)));
}
}
}
break;
case Instruction::VAArg:
Code = bitc::FUNC_CODE_INST_VAARG;
Vals.push_back(VE.getTypeID(I.getOperand(0)->getType())); // valistty
Vals.push_back(VE.getValueID(I.getOperand(0))); // valist.
Vals.push_back(VE.getTypeID(I.getType())); // restype.
break;
}
Stream.EmitRecord(Code, Vals, AbbrevToUse);