[Bug 76883] brw_vec4_generator.cpp:184: compiler crash

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76883

--- Comment #5 from Tapani Pälli <lemody at gmail.com> ---
(In reply to comment #4)
> Huh. I'm not able to reproduce. The bisected commit isn't really useful,
> because I meant to squash it into the next patch, as the commit message
> says. Can you reproduce the crash using the next commit, 9630ba6c or better
> yet, master?

Yep this is just a 'raw bisect', bug can be reproduced with master. Note that
you need Sandybridge to reproduce as the assert happens only with gen == 6. I
believe SNB needs all the swizzle channels for some particular math operation
but the new optimizations changes masks so that it is not a full mask. I can
try today if I can tackle this with a patch that bypasses mask modifications in
case we are on SNB.

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