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StorageFolding.h
Go to the documentation of this file.
#ifndef HALIDE_STORAGE_FOLDING_H
#define HALIDE_STORAGE_FOLDING_H
/** \file
* Defines the lowering optimization pass that reduces large buffers
* down to smaller circular buffers when possible
*/
#include <map>
#include <string>
#include "Expr.h"
namespace Halide {
namespace Internal {
class Function;
/** Fold storage of functions if possible. This means reducing one of
* the dimensions module something for the purpose of storage, if we
* can prove that this is safe to do. E.g consider:
*
\code
f(x) = ...
g(x) = f(x-1) + f(x)
f.store_root().compute_at(g, x);
\endcode
*
* We can store f as a circular buffer of size two, instead of
* allocating space for all of it.
*/
Stmt storage_folding(const Stmt &s, const std::map<std::string, Function> &env);
} // namespace Internal
} // namespace Halide
#endif
Expr.h
Base classes for Halide expressions (Halide::Expr) and statements (Halide::Internal::Stmt).
Halide::Internal::Function
A reference-counted handle to Halide's internal representation of a function.
Definition Function.h:39
Halide::Internal
Definition AbstractGenerator.h:24
Halide::Internal::storage_folding
Stmt storage_folding(const Stmt &s, const std::map< std::string, Function > &env)
Fold storage of functions if possible.
Halide
This file defines the class FunctionDAG, which is our representation of a Halide pipeline,...
Definition AbstractGenerator.h:19
Halide::Internal::Stmt
A reference-counted handle to a statement node.
Definition Expr.h:427