Revision 3657cf5f363fd64aeaf06432e62e3960800927b0 authored by Andrew Adams on 26 January 2024, 17:26:12 UTC, committed by GitHub on 26 January 2024, 17:26:12 UTC
* Fix bounds_of_nested_lanes bounds_of_nested_lanes assumed that one layer of nested vectorization could be removed at a time. When faced with the expression: min(ramp(x8(a), x8(b), 5), x40(27)) It panicked, because on the left hand side it reduced the bounds to x8(a) ... x8(a) + x8(b) * 4, and on the right hand side it reduced the bounds to 27. It then attempted to take a min of mismatched types. In general we can't assume that binary operators on nested vectors have the same nesting structure on both sides, so I just rewrote it to reduce directly to a scalar. Fixes #8038
1 parent 4590a09
SlidingWindow.h
#ifndef HALIDE_SLIDING_WINDOW_H
#define HALIDE_SLIDING_WINDOW_H
/** \file
*
* Defines the sliding_window lowering optimization pass, which avoids
* computing provably-already-computed values.
*/
#include <map>
#include <string>
#include "Expr.h"
namespace Halide {
namespace Internal {
class Function;
/** Perform sliding window optimizations on a halide
* statement. I.e. don't bother computing points in a function that
* have provably already been computed by a previous iteration.
*/
Stmt sliding_window(const Stmt &s, const std::map<std::string, Function> &env);
} // namespace Internal
} // namespace Halide
#endif
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