[Mesa-dev] [PATCH] i965: Avoid dependency hints on math opcodes

[Eric Anholt]

mike at lunarg.com writes:

> From: Mike Stroyan <mike at LunarG.com>
>
>   Putting NoDDClr and NoDDChk dependency control on instruction
> sequences that include math opcodes can cause corruption of channels.
> Treat math opcodes like send opcodes and suppress dependency hinting.
>
> Signed-off-by: Mike Stroyan <mike at LunarG.com>
> Tested-by: Tony Bertapelli <anthony.p.bertapelli at intel.com>

I think we need a testcase for this and some sort of explanation of
what's going on.  Why is math special?
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