tree d18f7e4ce1525227ee0e7ad9b7f5a93b2d4c7a15
parent 34d4294c2c610035e6e6bd10ef27e71692cbf85a
author Alan Baker <alanbaker@google.com> 1516302954 -0500
committer Steven Perron <stevenperron@google.com> 1516325806 -0500

Simplifying code for adding instructions to worklist

* AddToWorklist can now be called unconditionally
 * It will only add instructions that have not already been marked as
 live
 * Fixes a case where a merge was not added to the worklist because the
 branch was already marked as live
* Added two similar tests that fail without the fix