virtual void Process()override
{
FNiagaraCompiler_VectorVM* VMCompiler = (FNiagaraCompiler_VectorVM*)Compiler;
//Should be invalid at this point.
check(ResultIndex == INDEX_NONE);
check(ComponentIndex == INDEX_NONE);
//Special case where we're splatting but we don't know the component until now. E.g. Getting constants.
//Choose the component now based on the source expressions component index
if (OpCode == VectorVM::EOp::splatx)
{
check(SourceExpressions.Num() == 1);
TNiagaraExprPtr Src0 = GetSourceExpression(0);
if (Src0->ComponentIndex != INDEX_NONE)
{
switch (Src0->ComponentIndex)
{
case 0: OpCode = VectorVM::EOp::splatx; break;
case 1: OpCode = VectorVM::EOp::splaty; break;
case 2: OpCode = VectorVM::EOp::splatz; break;
case 3: OpCode = VectorVM::EOp::splatw; break;
}
}
}
ResultIndex = VMCompiler->AquireTemporary();
ResultLocation = ENiagaraExpressionResultLocation::Temporaries;
check(ResultIndex < VectorVM::NumTempRegisters);
VMCompiler->WriteCode((uint8)OpCode);
VMCompiler->WriteCode(VMCompiler->GetResultVMIndex( this ));
//Add the bitfield defining whether each source operand comes from a constant or a register.
int32 NumOperands = SourceExpressions.Num();
check(NumOperands <= 4);
uint8 OpTypeMask = VectorVM::CreateSrcOperandMask(NumOperands > 0 ? VMCompiler->GetVMOperandType(GetSourceExpression(0).Get()) : VectorVM::RegisterOperandType,
NumOperands > 1 ? VMCompiler->GetVMOperandType(GetSourceExpression(1).Get()) : VectorVM::RegisterOperandType,
NumOperands > 2 ? VMCompiler->GetVMOperandType(GetSourceExpression(2).Get()) : VectorVM::RegisterOperandType,
NumOperands > 3 ? VMCompiler->GetVMOperandType(GetSourceExpression(3).Get()) : VectorVM::RegisterOperandType);
VMCompiler->WriteCode(OpTypeMask);
//Add the locations for each of the source operands.
for (int32 SrcIdx = 0; SrcIdx < SourceExpressions.Num(); ++SrcIdx)
{
VMCompiler->WriteCode(VMCompiler->GetResultVMIndex(GetSourceExpression(SrcIdx).Get()));
}
}
virtual bool Process()override
{
FNiagaraCompiler_VectorVM* VMCompiler = (FNiagaraCompiler_VectorVM*)Compiler;
//Should be invalid at this point.
check(ResultIndex == INDEX_NONE);
ResultIndex = VMCompiler->AquireTemporary();
if (ResultIndex == INDEX_NONE)
{
return false;
}
ResultLocation = ENiagaraExpressionResultLocation::Temporaries;
check(ResultIndex < VectorVM::NumTempRegisters);
VMCompiler->WriteCode((uint8)OpCode);
//Add the bitfield defining whether each source operand comes from a constant or a register.
int32 NumOperands = SourceExpressions.Num();
check(NumOperands <= 4);
uint8 OpTypeMask = VectorVM::CreateSrcOperandMask(NumOperands > 0 ? VMCompiler->GetVMOperandType(GetSourceExpression(0).Get()) : EVectorVMOperandLocation::TemporaryRegister,
NumOperands > 1 ? VMCompiler->GetVMOperandType(GetSourceExpression(1).Get()) : EVectorVMOperandLocation::TemporaryRegister,
NumOperands > 2 ? VMCompiler->GetVMOperandType(GetSourceExpression(2).Get()) : EVectorVMOperandLocation::TemporaryRegister,
NumOperands > 3 ? VMCompiler->GetVMOperandType(GetSourceExpression(3).Get()) : EVectorVMOperandLocation::TemporaryRegister);
VMCompiler->WriteCode(OpTypeMask);
//Write dest
VMCompiler->WriteCode(VMCompiler->GetResultVMIndex(this));
//Add the locations for each of the source operands.
for (int32 SrcIdx = 0; SrcIdx < SourceExpressions.Num(); ++SrcIdx)
{
VMCompiler->WriteCode(VMCompiler->GetResultVMIndex(GetSourceExpression(SrcIdx).Get()));
}
return true;
}
virtual void Process()override
{
FNiagaraCompiler_VectorVM* VMCompiler = (FNiagaraCompiler_VectorVM*)Compiler;
check(ResultLocation == ENiagaraExpressionResultLocation::OutputData);
ResultIndex = VMCompiler->GetAttributeIndex(Result);
FNiagaraExpression* SrcExpr = GetSourceExpression(0).Get();
check(SourceExpressions.Num() == 1);
uint8 DestIndex = VMCompiler->GetResultVMIndex(this);
uint8 SrcIndex = VMCompiler->GetResultVMIndex(SrcExpr);
VMCompiler->WriteCode((uint8)VectorVM::EOp::output);
VMCompiler->WriteCode(DestIndex);
VMCompiler->WriteCode(VectorVM::CreateSrcOperandMask( VMCompiler->GetVMOperandType(SrcExpr) ) );
VMCompiler->WriteCode(SrcIndex);
}
