Re: [RFC] gcc feature request: Moving blocks into sections

From: Marek Polacek
Date: Mon Aug 05 2013 - 15:41:27 EST

On Mon, Aug 05, 2013 at 11:34:55AM -0700, Linus Torvalds wrote:
> On Mon, Aug 5, 2013 at 11:24 AM, Linus Torvalds
> <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > Ugh. I can see the attraction of your section thing for that case, I
> > just get the feeling that we should be able to do better somehow.
> Hmm.. Quite frankly, Steven, for your use case I think you actually
> want the C goto *labels* associated with a section. Which sounds like
> it might be a cleaner syntax than making it about the basic block
> anyway.

FWIW, we also support hot/cold attributes for labels, thus e.g.

if (bar ())
goto A;
/* ... */
A: __attribute__((cold))
/* ... */

I don't know whether that might be useful for what you want or not though...

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