[Libre-soc-isa] [Bug 552] single-predication has "splat" capability, needs review

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Wed Dec 23 21:06:34 GMT 2020


https://bugs.libre-soc.org/show_bug.cgi?id=552

Jacob Lifshay <programmerjake at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |programmerjake at gmail.com

--- Comment #2 from Jacob Lifshay <programmerjake at gmail.com> ---
Note that splat will be very common in graphics code (I'd randomly guess 10-20%
of instructions, though a lot of those can be done by having a scalar source on
a vector op), so we will probably want to take the approach where we have the
one scalar ALU and just write to multiple destination registers.

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