Re: [patch 3/8] mutex subsystem, add atomic_*_call_if_*() to i386


On Wed, 21 Dec 2005, Ingo Molnar wrote:
> 
> hm, i thought gcc treats all explicitly used register in the asm as 
> clobbered - and i'm using %%eax explicitly for that reason.

Nope, they are totally invisible to gcc afaik. It just sees "%%" and 
changes it into "%", and ignores the rest.

		Linus
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References:
- [patch 3/8] mutex subsystem, add atomic_*_call_if_*() to i386
  - From: Ingo Molnar <[email protected]>
- Re: [patch 3/8] mutex subsystem, add atomic_*_call_if_*() to i386
  - From: Linus Torvalds <[email protected]>
- Re: [patch 3/8] mutex subsystem, add atomic_*_call_if_*() to i386
  - From: Ingo Molnar <[email protected]>

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