explicit saves vs clobbers in paravirt.h

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On Wednesday 26 July 2006 23:30, Jeremy Fitzhardinge wrote:

> 
> > Normally gcc assumes cc is always clobbered for asm, otherwise you
> > would need to add it to pretty much every inline assembly statement.
> >   
> 
> Oh, OK.  Is "cc" clobber ever useful?

It's mostly used for internal gcc .md files the describe the instruction
set where cc clobber is not necessarily implicit.

-Andi


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