D-Programming-Language/dmd — pull request #2570 by donc (2013-09-18 06:35:49+00:00)
Title: CTFE optimsation: Remember when constfolding has been done

When an array literal or struct literal originated in CTFE, interpreting it again will have no effect.

Potentially this optimsation could have a large impact on compilation time, or may make almost no difference. Let's see,