Re: [PATCH 2.4.31 7/9] gcc4: fix const function warnings

On Sun, Jun 12, 2005 at 10:14:51PM +1000, Nick Piggin wrote:
(...) 
> const functions are those that don't have side effects and depend
> only on their argument list. So such functions can be CSE'ed or
> reordered.
> 
> If it makes sense to use on any inline function, then I think it
> makes sense if they're only using asm. Actually I would have thought
> it would *only* help inline functions using asm, because gcc may
> not know that such asm is 'const'.
> 
> But that's not to say they should be removed just because they
> can't help gcc - it may be instructive to the programmer, or more
> robust when making modifications to the code (eg. uninlining).

Thanks for the clarification, Nick.

Willy

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---

• References:
  • [PATCH 2.4.31 7/9] gcc4: fix const function warnings
    • From: Mikael Pettersson <[email protected]>
  • Re: [PATCH 2.4.31 7/9] gcc4: fix const function warnings
    • From: Willy Tarreau <[email protected]>
  • Re: [PATCH 2.4.31 7/9] gcc4: fix const function warnings
    • From: Nick Piggin <[email protected]>

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