[Mesa-stable] [PATCH] i965/vec4: Use reads_accumulator_implicitly(), not MACH checks.

[Andres Gomez]

On Tue, 2017-04-25 at 11:57 +0200, Juan A. Suarez Romero wrote:
> On Sat, 2017-04-22 at 16:28 -0700, Kenneth Graunke wrote:
> > Curro pointed out that I should not just check for MACH, but use
> > the reads_accumulator_implicitly() helper, which would also prevent
> > the same bug with MAC and SADA2 (if we ever decide to use them).
> > 
> 
> This seems to rely on commit 2faf227ec2e (i965/vec4: Avoid reswizzling
> MACH instructions in opt_register_coalesce()), which is not available
> in stable.
> 
> But taking a look at it, I think it could be good candidate to be also
> in stable.
> 
> 
> WDYT? Can we propose 2faf227ec2e to stable?

...

> > Emil - you'll need to cherry-pick 9347acac440190af67fce7b5f28e8eee7245fb6d
> > before picking this patch.  I forgot to nominate it for stable, sorry!

Kenneth already proposed to do so, he just didn't provide the proper
commit id, which is 2faf227ec2e, as you identified correctly.

Let's do so!

-- 
Br,

Andres