D-Programming-Language/dmd — pull request #3697 by andron (2014-06-27 01:07:20+00:00)
Title: Refactor optimize

Refactoring of visitors in optimize.c to simplify (perhaps) and remove boiler plate code. A lot of the visitors uses the exact same code pattern to optimize and check for errors.

In commit baef3a1 a fail compilation test fails but the change should provide a more correct solution. Both lhs and rhs should be checked for errors in a "foo || bar" expression.