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
Monotonic.h
#ifndef HALIDE_MONOTONIC_H
#define HALIDE_MONOTONIC_H
/** \file
*
* Methods for computing whether expressions are monotonic
*/
#include <iostream>
#include <string>
#include "Interval.h"
#include "Scope.h"
namespace Halide {
namespace Internal {
/** Find the bounds of the derivative of an expression. */
ConstantInterval derivative_bounds(const Expr &e, const std::string &var,
const Scope<ConstantInterval> &scope = Scope<ConstantInterval>::empty_scope());
/**
* Detect whether an expression is monotonic increasing in a variable,
* decreasing, or unknown.
*/
enum class Monotonic { Constant,
Increasing,
Decreasing,
Unknown };
Monotonic is_monotonic(const Expr &e, const std::string &var,
const Scope<ConstantInterval> &scope = Scope<ConstantInterval>::empty_scope());
Monotonic is_monotonic(const Expr &e, const std::string &var, const Scope<Monotonic> &scope);
/** Emit the monotonic class in human-readable form for debugging. */
std::ostream &operator<<(std::ostream &stream, const Monotonic &m);
void is_monotonic_test();
} // namespace Internal
} // namespace Halide
#endif
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...