void bli_packm_int
(
obj_t* a,
obj_t* p,
cntx_t* cntx,
cntl_t* cntl,
thrinfo_t* thread
)
{
packm_voft f;
// Check parameters.
if ( bli_error_checking_is_enabled() )
bli_packm_int_check( a, p, cntx );
// Sanity check; A should never have a zero dimension. If we must support
// it, then we should fold it into the next alias-and-early-exit block.
//if ( bli_obj_has_zero_dim( *a ) ) bli_abort();
// Let us now check to see if the object has already been packed. First
// we check if it has been packed to an unspecified (row or column)
// format, in which case we can return, since by now aliasing has already
// taken place in packm_init().
// NOTE: The reason we don't need to even look at the control tree in
// this case is as follows: an object's pack status is only set to
// BLIS_PACKED_UNSPEC for situations when the actual format used is
// not important, as long as its packed into contiguous rows or
// contiguous columns. A good example of this is packing for matrix
// operands in the level-2 operations.
if ( bli_obj_pack_schema( *a ) == BLIS_PACKED_UNSPEC )
{
return;
}
// At this point, we can be assured that cntl is not NULL. Now we check
// if the object has already been packed to the desired schema (as en-
// coded in the control tree). If so, we can return, as above.
// NOTE: In most cases, an object's pack status will be BLIS_NOT_PACKED
// and thus packing will be called for (but in some cases packing has
// already taken place, or does not need to take place, and so that will
// be indicated by the pack status). Also, not all combinations of
// current pack status and desired pack schema are valid.
if ( bli_obj_pack_schema( *a ) == bli_cntl_packm_params_pack_schema( cntl ) )
{
return;
}
// If the object is marked as being filled with zeros, then we can skip
// the packm operation entirely.
if ( bli_obj_is_zeros( *a ) )
{
return;
}
// Extract the function pointer from the current control tree node.
f = bli_cntl_packm_params_var_func( cntl );
// Invoke the variant with kappa_use.
f
(
a,
p,
cntx,
cntl,
thread
);
}
void bli_packm_int( obj_t* a,
obj_t* p,
packm_t* cntl )
{
varnum_t n;
impl_t i;
FUNCPTR_T f;
// Check parameters.
if ( bli_error_checking_is_enabled() )
bli_packm_int_check( a, p, cntl );
// Sanity check; A should never have a zero dimension. If we must support
// it, then we should fold it into the next alias-and-early-exit block.
//if ( bli_obj_has_zero_dim( *a ) ) bli_abort();
// First check if we are to skip this operation because the control tree
// is NULL. We return without taking any action because a was already
// aliased to p in packm_init().
if ( cntl_is_noop( cntl ) )
{
return;
}
// Let us now check to see if the object has already been packed. First
// we check if it has been packed to an unspecified (row or column)
// format, in which case we can return, since by now aliasing has already
// taken place in packm_init().
// NOTE: The reason we don't need to even look at the control tree in
// this case is as follows: an object's pack status is only set to
// BLIS_PACKED_UNSPEC for situations when the actual format used is
// not important, as long as its packed into contiguous rows or
// contiguous columns. A good example of this is packing for matrix
// operands in the level-2 operations.
if ( bli_obj_pack_status( *a ) == BLIS_PACKED_UNSPEC )
{
return;
}
// At this point, we can be assured that cntl is not NULL. Now we check
// if the object has already been packed to the desired schema (as en-
// coded in the control tree). If so, we can return, as above.
// NOTE: In most cases, an object's pack status will be BLIS_NOT_PACKED
// and thus packing will be called for (but in some cases packing has
// already taken place, or does not need to take place, and so that will
// be indicated by the pack status). Also, not all combinations of
// current pack status and desired pack schema are valid.
if ( bli_obj_pack_status( *a ) == cntl_pack_schema( cntl ) )
{
return;
}
/*
// The value for kappa we use will depend on whether the scalar
// attached to A has a nonzero imaginary component. If it does,
// then we will apply the scalar during packing to facilitate
// implementing complex domain micro-kernels in terms of their
// real domain counterparts. (In the aforementioned situation,
// applying a real scalar is easy, but applying a complex one is
// harder, so we avoid the need altogether with the code below.)
if ( bli_obj_scalar_has_nonzero_imag( a ) )
{
bli_check_error_code( BLIS_NOT_YET_IMPLEMENTED );
// Detach the scalar.
bli_obj_scalar_detach( a, &kappa );
// Reset the attached scalar (to 1.0).
bli_obj_scalar_reset( a );
kappa_p = κ
}
else
{
// If the internal scalar of A has only a real component, then
// we will apply it later (in the micro-kernel), and so we will
// use BLIS_ONE to indicate no scaling during packing.
kappa_p = &BLIS_ONE;
}
*/
// Extract the variant number and implementation type.
n = cntl_var_num( cntl );
i = cntl_impl_type( cntl );
// Index into the variant array to extract the correct function pointer.
f = vars[n][i];
// Invoke the variant with kappa_use.
f( a,
p );
}