[Mesa-dev] [RESEND PATCH 0/9] Partial redundancy elimination for compares

[Ian Romanick]

This is mostly a resend of this series.  Several patches, noted with
"v#", have been updated.

Patches 3 and 4 are new.  Right before sending the series, I decided to
update the shader-db results AND update shader-db.  The update to
shader-db added a bunch of new shaders hurt by patch 4.  It may be
reasonable to drop 3 and 4 for now.