Menu

- Learn
- Documentation
  - Language Reference
  - Library Reference
  - Command-line Reference
  - Feature Overview
  - Articles
- Downloads
- Packages
- Community
  - Blog
  - Orgs using D
  - Twitter
  - Forums
  - IRC
  - Wiki
  - GitHub
  - Issues
  - Get involved
  - Contributors
  - Foundation
  - Donate
  - Sponsors
- Resources
  - Tour
  - Books
  - Tutorials
  - Tools
  - Editors
  - IDEs
  - Visual D
  - Acknowledgments
  - D Style
  - Glossary
  - Sitemap

Search
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using a local clone.

# dmd.optimize

Compiler implementation of the D programming language.
Authors:
Walter Bright
License:
Boost License 1.0

Source optimize.d

Documentation https://dlang.org/phobos/dmd_optimize.html

Coverage https://codecov.io/gh/dlang/dmd/src/master/src/dmd/optimize.d

Expression `expandVar`(int `result`, VarDeclaration `v`);
  If variable has a const initializer, return that initializer.
  Returns:
  initializer if there is one, `null` if not, ErrorExp if error
Expression `Expression_optimize`(Expression `e`, int `result`, bool `keepLvalue`);
  Constant fold an Expression.
  Parameters:

  Expression `e` | expression to const fold; this may get modified in-place
  int `result` | WANTvalue, WANTexpand, or both
  bool `keepLvalue` | `e` is an lvalue, and keep it as an lvalue since it is an argument to a ref or out parameter, or the operand of & operator

  Returns:
  Constant folded version of `e`

Copyright © 1999-2018 by the D Language Foundation | Page generated by Ddoc on Sat Apr 14 16:39:30 2018