function blockedCountTruthy5d( x ) {
	var count;
	var bsize;
	var xbuf;
	var get;
	var dx0;
	var dx1;
	var dx2;
	var dx3;
	var dx4;
	var ox1;
	var ox2;
	var ox3;
	var ox4;
	var sh;
	var s0;
	var s1;
	var s2;
	var s3;
	var s4;
	var sx;
	var ox;
	var ix;
	var i0;
	var i1;
	var i2;
	var i3;
	var i4;
	var j0;
	var j1;
	var j2;
	var j3;
	var j4;
	var o;

	// Note on variable naming convention: s#, dx#, dy#, i#, j# where # corresponds to the loop number, with `0` being the innermost loop...

	// Resolve the loop interchange order:
	o = loopOrder( x.shape, x.strides );
	sh = o.sh;
	sx = o.sx;

	// Determine the block size:
	bsize = blockSize( x.dtype );

	// Set a pointer to the first indexed element:
	ox = x.offset;

	// Cache a reference to the input ndarray buffer:
	xbuf = x.data;

	// Cache the offset increment for the innermost loop:
	dx0 = sx[0];

	// Cache accessor:
	get = x.accessors[0];

	// Initialize a counter:
	count = 0;

	// Iterate over blocks...
	for ( j4 = sh[4]; j4 > 0; ) {
		if ( j4 < bsize ) {
			s4 = j4;
			j4 = 0;
		} else {
			s4 = bsize;
			j4 -= bsize;
		}
		ox4 = ox + ( j4*sx[4] );
		for ( j3 = sh[3]; j3 > 0; ) {
			if ( j3 < bsize ) {
				s3 = j3;
				j3 = 0;
			} else {
				s3 = bsize;
				j3 -= bsize;
			}
			dx4 = sx[4] - ( s3*sx[3] );
			ox3 = ox4 + ( j3*sx[3] );
			for ( j2 = sh[2]; j2 > 0; ) {
				if ( j2 < bsize ) {
					s2 = j2;
					j2 = 0;
				} else {
					s2 = bsize;
					j2 -= bsize;
				}
				dx3 = sx[3] - ( s2*sx[2] );
				ox2 = ox3 + ( j2*sx[2] );
				for ( j1 = sh[1]; j1 > 0; ) {
					if ( j1 < bsize ) {
						s1 = j1;
						j1 = 0;
					} else {
						s1 = bsize;
						j1 -= bsize;
					}
					dx2 = sx[2] - ( s1*sx[1] );
					ox1 = ox2 + ( j1*sx[1] );
					for ( j0 = sh[0]; j0 > 0; ) {
						if ( j0 < bsize ) {
							s0 = j0;
							j0 = 0;
						} else {
							s0 = bsize;
							j0 -= bsize;
						}
						// Compute the index offset for the first input ndarray element in the current block:
						ix = ox1 + ( j0*sx[0] );

						// Compute the loop offset increment:
						dx1 = sx[1] - ( s0*sx[0] );

						// Iterate over the ndarray dimensions...
						for ( i4 = 0; i4 < s4; i4++ ) {
							for ( i3 = 0; i3 < s3; i3++ ) {
								for ( i2 = 0; i2 < s2; i2++ ) {
									for ( i1 = 0; i1 < s1; i1++ ) {
										for ( i0 = 0; i0 < s0; i0++ ) {
											if ( get( xbuf, ix ) ) {
												count += 1;
											}
											ix += dx0;
										}
										ix += dx1;
									}
									ix += dx2;
								}
								ix += dx3;
							}
							ix += dx4;
						}
					}
				}
			}
		}
	}
	return count;
}
Counts the number of truthy elements in an ndarray via loop blocking.

@private
@param {Object} x - object containing ndarray meta data
@param {string} x.dtype - data type
@param {Collection} x.data - data buffer
@param {NonNegativeIntegerArray} x.shape - dimensions
@param {IntegerArray} x.strides - stride lengths
@param {NonNegativeInteger} x.offset - index offset
@param {string} x.order - specifies whether `x` is row-major (C-style) or column-major (Fortran-style)
@param {Array<Function>} x.accessors - data buffer accessors
@returns {NonNegativeInteger} result

@example
var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
var accessors = require( '@stdlib/array/base/accessors' );

// Create a data buffer:
var xbuf = toAccessorArray( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 ] );

// Define the shape of the input array:
var shape = [ 1, 1, 1, 2, 2 ];

// Define the array strides:
var sx = [ 4, 4, 4, 2, 1 ];

// Define the index offset:
var ox = 0;

// Create the input ndarray-like object:
var x = {
    'dtype': 'generic',
    'data': xbuf,
    'shape': shape,
    'strides': sx,
    'offset': ox,
    'order': 'row-major',
    'accessors': accessors( xbuf ).accessors
};

// Perform operation:
var out = blockedCountTruthy5d( x );
// returns 4