ucb-bar/chisel — pull request #351 by ucbjrl (2014-12-09 21:01:12+00:00)
Title: Why isn't reset an input -  Signals only used as resets are trimmed #346

Ensure that any nodes connected to an explicit reset are visited (in all the tree-walking code).
Make implicit_reset a constant.
Provide test to ensure nodes attached to reset are processed.