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Subject: Re: Crafty 64-bit speedup

Author: Robert Hyatt

Date: 08:53:06 03/26/04

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On March 26, 2004 at 02:03:56, Slater Wold wrote:

>On March 26, 2004 at 01:54:44, Russell Reagan wrote:
>
>>On March 26, 2004 at 01:04:54, Slater Wold wrote:
>>
>>>Using /O2, /Ot, /Og:
>>
>>>Using /O2, /Ot, /Og:
>>
>>>(he used VC_INLINE_ASM & ASM_INLINED,
>>>which my compiler cannot use).
>>
>>Why can't you add this to these options?
>
>The current AMD64 compilers don't support _asm.  It's all intrinsic functions.
>But it does come with a macro assembler.
>
>>/D "VC_INLINE_ASM" /D "USE_ASSEMBLY"
>>
>>Also, how about /Ob2 (inline any suitable)? I also used /Oi (enable intristic
>>functions) and /Oy (omit frame pointers).
>
>I used /Ob2.  Sorry.


You don;t need inline with MSVC.  Eugene has crafty using intrinsics for BSF/BSR
so the asm is not needed...



>
>cl /D_CONSOLE /DWIN32 /O2 /Ot /Og /Ob2 /Oi /Oy:
>
>Total nodes: 89913841
>Raw nodes per second: 2140805
>Total elapsed time: 42
>SMP time-to-ply measurement: 15.238095
>
>
>I can however, squeeze 163k out of the 32-bit version.



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