[Webkit-unassigned] [Bug 152886] [mips] Add countLeadingZeros32 implementation in macro assembler

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=152886

--- Comment #3 from Julien Brianceau <jbriance at cisco.com> ---
(In reply to comment #2)
> Comment on attachment 268538 [details]
> Add countLeadingZeros32 implementation in mips macro assembler
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=268538&action=review
> 
> > Source/JavaScriptCore/assembler/MacroAssemblerMIPS.h:318
> > +        m_assembler.clz(dest, src);
> 
> Shouldn't we have a fallback here in case assembler does not support clz?

It would be great to provide a generic fallback implementation indeed. However, mips32 is already a quite old ISA, so I doubt this would be useful to anyone.

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