[Mesa-dev] [PATCH] i965/fs: Remove force_sechalf stack.

[Eric Anholt]

Kenneth Graunke <kenneth at whitecape.org> writes:

> Only Gen4 color write setup uses the force_sechalf flag, and it only
> sets it on a single instruction.  It also already has to get a pointer
> to the instruction and manually set the saturate flag, so we may as well
> just set force_sechalf the same way and avoid the complexity of a stack.

Mostly I was just following the pattern we had from brw_eu_emit.c, but
now that the code's written it doesn't make much sense (turns out when
we do sechalf, we do it at emit time not at vistor time, with that one
exception).

Reviewed-by: Eric Anholt <eric at anholt.net>
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