Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)

On Fri, 29 Jul 2005, David Woodhouse wrote:

> Builtins are more portable and their implementation will improve to
> match developments in the target CPU. Inline assembly, as we have seen,
> remains the same for years while the technology moves on.
> 
> Although it's often the case that inline assembly _is_ better,
> especially in code which is arch-specific in the first place, I wouldn't
> necessarily assume that it's always the case.

 Well, if some inline assembly is found to be better, then perhaps it 
should be contributed (not necessarily as is, but as a concept) to GCC for 
improvement.

  Maciej
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• References:
  • [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Steven Rostedt <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Daniel Walker <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Steven Rostedt <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Steven Rostedt <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Steven Rostedt <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Steven Rostedt <[email protected]>
  • Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable
    • From: Nick Piggin <[email protected]>
  • [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: Linus Torvalds <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: "Maciej W. Rozycki" <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: Linus Torvalds <[email protected]>
  • Re: [PATCH] speed up on find_first_bit for i386 (let compiler do the work)
    • From: David Woodhouse <[email protected]>

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