moco::ConstantFoldAdd Class Reference

Constant folder for Const + Add -> Const. More...

#include <ConstantFoldAdd.h>

Collaboration diagram for moco::ConstantFoldAdd:

Public Member Functions
const char *	name (void) const final
bool	run (loco::Graph *graph) override
Public Member Functions inherited from logo::Pass
virtual	~Pass ()=default

Detailed Description

Constant folder for Const + Add -> Const.

Definition at line 30 of file ConstantFoldAdd.h.

Member Function Documentation

name()

const char * moco::ConstantFoldAdd::name ( void  ) const

inlinefinalvirtual

Reimplemented from logo::Pass.

Definition at line 33 of file ConstantFoldAdd.h.

{ return "ConstantFoldAdd"; }

run()

bool moco::ConstantFoldAdd::run ( loco::Graph *  graph )

overridevirtual

Note

This will Replace TFAdd with TFConst when inputs are TFConst

  Before
            A --- TFAdd --- C
            B --/
  After
            A --- TFAdd
            B --/
                  TFConst ---------- C
  Where
            A,B : inputs of TFAdd
            C : a node that uses TFAdd as an input
            TFAdd is disconnected from C
            Nodes are drawn multiple times to simplify the diagram

Implements logo::Pass.

Definition at line 101 of file ConstantFoldAdd.cpp.

{
  bool changed = false;
  for (auto node : loco::active_nodes(loco::output_nodes(graph)))
  {
    if (auto add_node = as<moco::TFAdd>(node))
    {
      if (constantfold_add(add_node))
        changed = true;
    }
  }
 
  return changed;
}

References loco::active_nodes(), and loco::output_nodes().

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

• compiler/moco/pass/include/moco/Pass/Passes/ConstantFoldAdd.h
• compiler/moco/pass/src/Passes/ConstantFoldAdd.cpp