[Mesa-dev] [PATCH] i965/fs: Reset reg_from when we can't coalesce.

[Eric Anholt]

Matt Turner <mattst88 at gmail.com> writes:

> Not setting this would prevented coalescing after a failed attempt if
> the sources for both MOVs were the same.
>
> total instructions in shared programs: 1654531 -> 1650224 (-0.26%)
> instructions in affected programs:     423167 -> 418860 (-1.02%)
> GAINED:                                2
> LOST:                                  0

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