#ifndef DEINTERLEAVE_H
#define DEINTERLEAVE_H
/** \file
*
* Defines methods for splitting up a vector into the even lanes and
* the odd lanes. Useful for optimizing expressions such as select(x %
* 2, f(x/2), g(x/2))
*/
#include "IR.h"
namespace Halide {
namespace Internal {
/** Extract the odd-numbered lanes in a vector */
EXPORT Expr extract_odd_lanes(Expr a);
/** Extract the even-numbered lanes in a vector */
EXPORT Expr extract_even_lanes(Expr a);
/** Extract the nth lane of a vector */
EXPORT Expr extract_lane(Expr vec, int lane);
/** Look through a statement for expressions of the form select(ramp %
* 2 == 0, a, b) and replace them with calls to an interleave
* intrinsic */
Stmt rewrite_interleavings(Stmt s);
EXPORT void deinterleave_vector_test();
}
}
#endif