[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 #6 from Julien Brianceau <jbriance at cisco.com> ---
(In reply to comment #4)
> 
> I think this should be static_assert(false, "CLZ opcode is not available for
> this ISA"); so that someone will notice this when compiling instead of
> waiting to compile and do somewhat thorough testing on a device.

You're right. I also took the opportunity to move the check from MIPSAssembler.h to MacroAssemblerMIPS.h, because if someone wants to write a generic implementation for an older ISA, MacroAssemblerMIPS.h is a better place than MIPSAssembler.h

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