https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99785
Jeff Muizelaar <jmuizelaar at mozilla dot com> changed:
What |Removed |Added
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CC| |jmuizelaar at mozilla dot com
--- Comment #14 from Jeff Muizelaar <jmuizelaar at mozilla dot com> ---
re: __builtin_shuffle vs __builtin_shufflevector - It looks like
__builtin_shuffle doesn't support constructing vectors of a different size than
input type. That's mostly what we're using __builtin_shufflevector for.
__builtin_shufflevector
https://github.com/servo/webrender/blob/master/swgl/src/vector_type.h
I briefly tried to get the gcc variant of the code compiling with clang but ran
into a number of issues including clang's lack of support for
'__builtin_shuffle'. If you'd like to try, the swgl code is pretty easy to
build locally if you. You should be able to just checkout
https://github.com/servo/webrender/ navigate to the the 'swgl' directory and
run 'cargo build --release'
re: inlining huge functions - We tried not inlining blend_pixels with clang and
it seems to have a negative impact on a number of benchmarks.
