onert::compiler::pass::PermutationEliminationPass Class Reference

An optimization pass that removes Permute operations if possible. More...

#include <PermutationEliminationPass.h>

Collaboration diagram for onert::compiler::pass::PermutationEliminationPass:

Public Member Functions
std::string	id () final
	Returns string id for this pass. Same with class name.
void	callback (const ir::OperationIndex &i, ir::IOperation &n) final
	Be called for all nodes of graph.
	LoweredOperationPass (ILoweredGraph &lowered_graph)
Public Member Functions inherited from onert::compiler::pass::LoweredOperationPass
	LoweredOperationPass (ILoweredGraph &lowered_graph)
virtual	~LoweredOperationPass ()=default
Public Member Functions inherited from onert::compiler::pass::OperationPass
virtual	~OperationPass ()=default
void	run () final
	Run the pass.
	Pass (ir::Graph &graph)
Public Member Functions inherited from onert::compiler::pass::Pass
	Pass (ir::Graph &graph)
virtual	~Pass ()=default
Public Member Functions inherited from onert::compiler::pass::IPass
virtual	~IPass ()=default
Public Member Functions inherited from onert::ir::OperationVisitor
virtual	~OperationVisitor ()=default

Additional Inherited Members
Protected Attributes inherited from onert::compiler::pass::LoweredOperationPass
ILoweredGraph &	_lowered_graph
Protected Attributes inherited from onert::compiler::pass::Pass
ir::Graph &	_graph

Detailed Description

An optimization pass that removes Permute operations if possible.

There may be some Permute operations that are inserted by PermutationInsertionPass or other passes. This pass checks all Permute operations and eliminates them if Permute in/out tensors are compatible and layouts match.

Permute input tensor is kept and the output is removed for all the cases, except model outputs. As all output tensors have to be builtin backend, so the output is kept.

Note

This is an optimization pass which means that everything should work fine even if this pass was skipped.

Definition at line 39 of file PermutationEliminationPass.h.

Member Function Documentation

callback()

void onert::compiler::pass::PermutationEliminationPass::callback ( const ir::OperationIndex &  index, ir::IOperation &  node  )

finalvirtual

Be called for all nodes of graph.

Parameters

index	is the index of a node in graph
node	is the node in graph

Implements onert::compiler::pass::LoweredOperationPass.

Definition at line 25 of file PermutationEliminationPass.cc.

{
  _op_ind = ind;
  node.accept(*this);
};

References onert::ir::IOperation::accept().

id()

std::string onert::compiler::pass::PermutationEliminationPass::id ( )

inlinefinalvirtual

Returns string id for this pass. Same with class name.

Returns

string id

Implements onert::compiler::pass::LoweredOperationPass.

Definition at line 45 of file PermutationEliminationPass.h.

{ return "PermutationEliminationPass"; }

LoweredOperationPass()

onert::compiler::pass::LoweredOperationPass::LoweredOperationPass ( ILoweredGraph &  lowered_graph )

inline

Definition at line 29 of file LoweredOperationPass.h.

    : OperationPass{lowered_graph.graph()}, _lowered_graph{lowered_graph}
  {
    // DO NOTHING
  }

---

The documentation for this class was generated from the following files:

• runtime/onert/core/src/compiler/pass/PermutationEliminationPass.h
• runtime/onert/core/src/compiler/pass/PermutationEliminationPass.cc