[Webkit-unassigned] [Bug 54456] Optimizing lightning filter to ARM-neon SIMD instruction set
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Mar 1 04:39:19 PST 2011
https://bugs.webkit.org/show_bug.cgi?id=54456
--- Comment #25 from Holger Freyther <zecke at selfish.org> 2011-03-01 04:39:18 PST ---
(In reply to comment #24)
> And I think this needs good benchmarks. Adding Holger to have someone who care about that :)
Thanks. and the usual question. With a gcc 4.5/4.6 how much slower is the code if one is using the intrinsics of the compiler?
For the inline assembly:
- Any reason to not use GNU AS macros?
- Instead of harcoding register names or concating strings you can use IIRC the %[NAME] syntax for register names and GCC wil fill in the blanks for you increasing the readability of the code.
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