From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 7 Dec 2016 00:31:45 +0000 (+0200)
Subject: Recognize backward references in GLSL loops
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=ced18c244f874638dc17ae486802bb3bb01ecf71;hp=ced18c244f874638dc17ae486802bb3bb01ecf71;p=libs%2Fgl.git

Recognize backward references in GLSL loops

A lone assignment at the end of a loop isn't unused if the next iteration
uses the value.
---