gtpin::IargInsOpMask Struct Reference

HLI argument that represents mask of scalar operations performed by the instruction on the vector of data elements. More...

#include <gt_iarg_defs.h>

Public Member Functions
	IargInsOpMask (const IGtIns &ins)
	Construct HLI argument that evaluates the mask of scalar operations performed by the instruction on the vector of data elements ceMask = ins.IsWriteMaskEnabled() ? ChannelEnableReg() : 0xffffffff insOpMask = ceMask & DispatchMaskReg() & ins.ExecMask().Bits() & Mask(ins.Predicate())
template<typename PRMT >
const IGtIarg &	Make (IGtIargFactory &factory) const
	Create IGtIarg object that assigns this argument value to the formal parameter of type PRMT.

---

Detailed Description

HLI argument that represents mask of scalar operations performed by the instruction on the vector of data elements.

Note:

This argument is similar to the SIMD mask generated by the IargSimdMask argument. However, there is one significant difference: the operation mask starts with the state of the GtExecMask::ChannelOffset() channel in the LSB position of the mask, while SIMD mask always holds state of the channel #0 in the LSB position. In other words, insOpMask = (simdMask >> GtExecMask::ChannelOffset())

The HLI function with this argument should be called immediately before the instruction for which operation mask is evaluated. If (!ins.IsFlowControl() && !ins.IsFlagModifier()), this argument can be used after instruction 'ins'.

---

Constructor & Destructor Documentation

gtpin::IargInsOpMask::IargInsOpMask

(

const IGtIns &

ins

)

[inline]

Construct HLI argument that evaluates the mask of scalar operations performed by the instruction on the vector of data elements ceMask = ins.IsWriteMaskEnabled() ? ChannelEnableReg() : 0xffffffff insOpMask = ceMask & DispatchMaskReg() & ins.ExecMask().Bits() & Mask(ins.Predicate())

Parameters:

[in]

ins

Instruction, the operation mask is evaluated for

---

Member Function Documentation

template<typename PRMT >

const IGtIarg& gtpin::IargInsOpMask::Make

(

IGtIargFactory &

factory

)

const [inline]

Create IGtIarg object that assigns this argument value to the formal parameter of type PRMT.

Note:

The array of GRF registers is passed by pointer

Parameters:

PRMT	Type of the formal parameter of the function

Returns:

New IGtIarg object of type GtIargType::INS_OP_MASK

Precondition:

PRMT is a pointer type