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Add support for vector data types in the LLVM interpreter.

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Patch by:
Veselov, Yuri <Yuri.Veselov@intel.com>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178469 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2013-04-01 15:53:30 +00:00
parent f170cc9b2e
commit 953783e00c
5 changed files with 274 additions and 6 deletions
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151
lib/ExecutionEngine/ExecutionEngine.cpp
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@ -535,6 +535,8 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
if (isa<UndefValue>(C)) {
GenericValue Result;
switch (C->getType()->getTypeID()) {
default:
break;
case Type::IntegerTyID:
case Type::X86_FP80TyID:
case Type::FP128TyID:
@ -543,7 +545,16 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
// with the correct bit width.
Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
break;
default:
case Type::VectorTyID:
// if the whole vector is 'undef' just reserve memory for the value.
const VectorType* VTy = dyn_cast<VectorType>(C->getType());
const Type *ElemTy = VTy->getElementType();
unsigned int elemNum = VTy->getNumElements();
Result.AggregateVal.resize(elemNum);
if (ElemTy->isIntegerTy())
for (unsigned int i = 0; i < elemNum; ++i)
Result.AggregateVal[i].IntVal =
APInt(ElemTy->getPrimitiveSizeInBits(), 0);
break;
}
return Result;
@ -825,6 +836,101 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
else
llvm_unreachable("Unknown constant pointer type!");
break;
case Type::VectorTyID: {
unsigned elemNum;
Type* ElemTy;
const ConstantDataVector *CDV = dyn_cast<ConstantDataVector>(C);
const ConstantVector *CV = dyn_cast<ConstantVector>(C);
const ConstantAggregateZero *CAZ = dyn_cast<ConstantAggregateZero>(C);
if (CDV) {
elemNum = CDV->getNumElements();
ElemTy = CDV->getElementType();
} else if (CV || CAZ) {
VectorType* VTy = dyn_cast<VectorType>(C->getType());
elemNum = VTy->getNumElements();
ElemTy = VTy->getElementType();
} else {
llvm_unreachable("Unknown constant vector type!");
}
Result.AggregateVal.resize(elemNum);
// Check if vector holds floats.
if(ElemTy->isFloatTy()) {
if (CAZ) {
GenericValue floatZero;
floatZero.FloatVal = 0.f;
std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
floatZero);
break;
}
if(CV) {
for (unsigned i = 0; i < elemNum; ++i)
if (!isa<UndefValue>(CV->getOperand(i)))
Result.AggregateVal[i].FloatVal = cast<ConstantFP>(
CV->getOperand(i))->getValueAPF().convertToFloat();
break;
}
if(CDV)
for (unsigned i = 0; i < elemNum; ++i)
Result.AggregateVal[i].FloatVal = CDV->getElementAsFloat(i);
break;
}
// Check if vector holds doubles.
if (ElemTy->isDoubleTy()) {
if (CAZ) {
GenericValue doubleZero;
doubleZero.DoubleVal = 0.0;
std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
doubleZero);
break;
}
if(CV) {
for (unsigned i = 0; i < elemNum; ++i)
if (!isa<UndefValue>(CV->getOperand(i)))
Result.AggregateVal[i].DoubleVal = cast<ConstantFP>(
CV->getOperand(i))->getValueAPF().convertToDouble();
break;
}
if(CDV)
for (unsigned i = 0; i < elemNum; ++i)
Result.AggregateVal[i].DoubleVal = CDV->getElementAsDouble(i);
break;
}
// Check if vector holds integers.
if (ElemTy->isIntegerTy()) {
if (CAZ) {
GenericValue intZero;
intZero.IntVal = APInt(ElemTy->getScalarSizeInBits(), 0ull);
std::fill(Result.AggregateVal.begin(), Result.AggregateVal.end(),
intZero);
break;
}
if(CV) {
for (unsigned i = 0; i < elemNum; ++i)
if (!isa<UndefValue>(CV->getOperand(i)))
Result.AggregateVal[i].IntVal = cast<ConstantInt>(
CV->getOperand(i))->getValue();
else {
Result.AggregateVal[i].IntVal =
APInt(CV->getOperand(i)->getType()->getPrimitiveSizeInBits(), 0);
}
break;
}
if(CDV)
for (unsigned i = 0; i < elemNum; ++i)
Result.AggregateVal[i].IntVal = APInt(
CDV->getElementType()->getPrimitiveSizeInBits(),
CDV->getElementAsInteger(i));
break;
}
llvm_unreachable("Unknown constant pointer type!");
}
break;
default:
SmallString<256> Msg;
raw_svector_ostream OS(Msg);
@ -866,6 +972,9 @@ void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
const unsigned StoreBytes = getDataLayout()->getTypeStoreSize(Ty);
switch (Ty->getTypeID()) {
default:
dbgs() << "Cannot store value of type " << *Ty << "!\n";
break;
case Type::IntegerTyID:
StoreIntToMemory(Val.IntVal, (uint8_t*)Ptr, StoreBytes);
break;
@ -885,8 +994,19 @@ void ExecutionEngine::StoreValueToMemory(const GenericValue &Val,
*((PointerTy*)Ptr) = Val.PointerVal;
break;
default:
dbgs() << "Cannot store value of type " << *Ty << "!\n";
case Type::VectorTyID:
for (unsigned i = 0; i < Val.AggregateVal.size(); ++i) {
if (cast<VectorType>(Ty)->getElementType()->isDoubleTy())
*(((double*)Ptr)+i) = Val.AggregateVal[i].DoubleVal;
if (cast<VectorType>(Ty)->getElementType()->isFloatTy())
*(((float*)Ptr)+i) = Val.AggregateVal[i].FloatVal;
if (cast<VectorType>(Ty)->getElementType()->isIntegerTy()) {
unsigned numOfBytes =(Val.AggregateVal[i].IntVal.getBitWidth()+7)/8;
StoreIntToMemory(Val.AggregateVal[i].IntVal,
(uint8_t*)Ptr + numOfBytes*i, numOfBytes);
}
}
break;
}
if (sys::isLittleEndianHost() != getDataLayout()->isLittleEndian())
@ -951,6 +1071,31 @@ void ExecutionEngine::LoadValueFromMemory(GenericValue &Result,
Result.IntVal = APInt(80, y);
break;
}
case Type::VectorTyID: {
const VectorType *VT = cast<VectorType>(Ty);
const Type *ElemT = VT->getElementType();
const unsigned numElems = VT->getNumElements();
if (ElemT->isFloatTy()) {
Result.AggregateVal.resize(numElems);
for (unsigned i = 0; i < numElems; ++i)
Result.AggregateVal[i].FloatVal = *((float*)Ptr+i);
}
if (ElemT->isDoubleTy()) {
Result.AggregateVal.resize(numElems);
for (unsigned i = 0; i < numElems; ++i)
Result.AggregateVal[i].DoubleVal = *((double*)Ptr+i);
}
if (ElemT->isIntegerTy()) {
GenericValue intZero;
const unsigned elemBitWidth = cast<IntegerType>(ElemT)->getBitWidth();
intZero.IntVal = APInt(elemBitWidth, 0);
Result.AggregateVal.resize(numElems, intZero);
for (unsigned i = 0; i < numElems; ++i)
LoadIntFromMemory(Result.AggregateVal[i].IntVal,
(uint8_t*)Ptr+((elemBitWidth+7)/8)*i, (elemBitWidth+7)/8);
}
break;
}
default:
SmallString<256> Msg;
raw_svector_ostream OS(Msg);