[Bug 100092] Assertion failed: size_log2 <= ANV_MAX_STATE_SIZE_LOG2 While compiling large compute shader
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Tue Mar 7 03:35:41 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=100092
--- Comment #4 from Josh Gargus <registration-bugzilla at schwa.ca> ---
Thanks Jason!
In general on NVIDIA, it seems faster to store values in registers than shared
memory, *unless* there is not enough register space and it needs to spill the
data elsewhere (to main GPU memory? to some other cache? I have no idea).
In this case, it seems that making roi shared reduces the register pressure
enough that depth can fit in registers; as a result, making depth shared
reduces performance.
At least, that is my interpretation.
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