i965/compiler: Bring back the INTEL_PRECISE_TRIG environment variable
authorJason Ekstrand <jason.ekstrand@intel.com>
Sat, 11 Jun 2016 20:17:27 +0000 (13:17 -0700)
committerJason Ekstrand <jason.ekstrand@intel.com>
Tue, 14 Jun 2016 02:54:47 +0000 (19:54 -0700)
commitbe32a2132785fbc119f17e62070e007ee7d17af7
treea75ad721adfc0f845b1948dfc57b01a4f3193a93
parenta0ed8503b753574b14df3dc280fd917ae7c207f8
i965/compiler: Bring back the INTEL_PRECISE_TRIG environment variable

This was removed in d9546b0c5d and replced with the precise_trig driconf
option.  However, we still need precise trig in the Vulkan driver so this
commit brings back the environment variable and compiler->precise_trig is
effectively the logical OR of the two.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96484
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
src/mesa/drivers/dri/i965/brw_compiler.c
src/mesa/drivers/dri/i965/brw_context.c