Handle node mutations at the end
commit795344872da424ddcb49d820d91d339b3e230d7b
authorDaniel Andersson <koda@fb.com>
Fri, 19 Aug 2016 12:36:33 +0000 (19 05:36 -0700)
committerHhvm Bot <hhvm-bot-bot@fb.com>
Fri, 19 Aug 2016 18:42:33 +0000 (19 11:42 -0700)
treee724dedd92359392906a44cbf69eb035433d71c3
parentf43a1cb0f7069566b492fab1b66724ffa4cf95f5
Handle node mutations at the end

Summary: Handle potential nullptr as the successor when unliking a node.

Reviewed By: ottoni

Differential Revision: D3739369

fbshipit-source-id: e5d0b08c5252ff3a2e37562e217ba6808ebde19c
hphp/runtime/vm/jit/refcount-opts.cpp