Class: Optimize::Pass

Inherits:

Object

• Object
• Optimize::Pass

Defined in:

lib/optimize/pass.rb

Overview

Abstract base class for optimizer passes. Subclasses override #apply and optionally #name.

Direct Known Subclasses

NoopPass, Optimize::Passes::ArithReassocPass, Optimize::Passes::ConstFoldEnvPass, Optimize::Passes::ConstFoldPass, Optimize::Passes::ConstFoldTier2Pass, Optimize::Passes::DeadBranchFoldPass, Optimize::Passes::DeadStashElimPass, Optimize::Passes::IdentityElimPass, Optimize::Passes::InliningPass

Instance Method Summary

• #apply(function, type_env:, log:, object_table: nil, **_extras) ⇒ Object

  Run this pass on a single IR::Function.

• #name ⇒ Object
• #one_shot? ⇒ Boolean

Instance Method Details

#apply(function, type_env:, log:, object_table: nil, **_extras) ⇒ Object

Run this pass on a single IR::Function. The pass may mutate ‘function.instructions` or `function.children` but must log any skipped optimization decisions to `log`.

Parameters:

• function (Optimize::IR::Function)
• type_env (Optimize::TypeEnv, nil)
• log (Optimize::Log)

Raises:

• (NotImplementedError)

# File 'lib/optimize/pass.rb', line 14

def apply(function, type_env:, log:, object_table: nil, **_extras)
  raise NotImplementedError
end

#name ⇒ Object

# File 'lib/optimize/pass.rb', line 18

def name
  self.class.name.to_s.split("::").last.sub(/Pass$/, "").downcase.to_sym
end

#one_shot? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/optimize/pass.rb', line 22

def one_shot?
  false
end