Revision 9a07c7d4c5945a7fa4329ee6376cc92dad5f7589 authored by Andrew Adams on 06 July 2020, 21:58:37 UTC, committed by Andrew Adams on 06 July 2020, 21:58:37 UTC
1 parent a1cfd8e
Deinterleave.h
#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 "Expr.h"
namespace Halide {
namespace Internal {
/** Extract the odd-numbered lanes in a vector */
Expr extract_odd_lanes(const Expr &a);
/** Extract the even-numbered lanes in a vector */
Expr extract_even_lanes(const Expr &a);
/** Extract the nth lane of a vector */
Expr extract_lane(const 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(const Stmt &s);
void deinterleave_vector_test();
} // namespace Internal
} // namespace Halide
#endif
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