On 02/19/2013 06:03 PM, Eric Anholt wrote:
We can execute way fewer instructions by doing our boolean manipulation
on an int of bits at a time, while also reducing our working set size.
I see...it lets you do the computation on whole words at a time rather
than looping over (up to) 32
We can execute way fewer instructions by doing our boolean manipulation
on an int of bits at a time, while also reducing our working set size.
Reduces compile time of L4D2's slowest shader from 4s to 1.1s
(-72.4% +/- 0.2%, n=10)
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.../drivers/dri/i965/brw_fs_live_variables.cpp | 44
