Re: [PATCH 0/2] __builtin_unreachable

[H. Peter Anvin]

On 09/09/2009 09:42 PM, AmÃrico Wang wrote:
> 
> Just curious, what different asm code will gcc generate for this? Comparing it
> to for(;;) ? I am sorry that I don't have gcc 4.5 on hand.
> 

It generates nothing.  It is you as the programmer guaranteeing that we
will never get there, and as such gcc will generate no code at all.

	-hpa
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