Revision 69e4dffe991aafe28a7457fbe7cc3978a8074020 authored by Andrew Adams on 21 February 2021, 17:31:49 UTC, committed by Andrew Adams on 21 February 2021, 17:31:49 UTC
PartitionLoops.h
#ifndef PARTITION_LOOPS_H
#define PARTITION_LOOPS_H
/** \file
* Defines a lowering pass that partitions loop bodies into three
* to handle boundary conditions: A prologue, a simplified
* steady-stage, and an epilogue.
*/
#include "Expr.h"
namespace Halide {
namespace Internal {
/** Return true if an expression uses a likely tag that isn't captured
* by an enclosing Select, Min, or Max. */
bool has_uncaptured_likely_tag(const Expr &e);
/** Return true if an expression uses a likely tag. */
bool has_likely_tag(const Expr &e);
/** Partitions loop bodies into a prologue, a steady state, and an
* epilogue. Finds the steady state by hunting for use of clamped
* ramps, or the 'likely' intrinsic. */
Stmt partition_loops(Stmt s);
} // namespace Internal
} // namespace Halide
#endif
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