Re: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups+ docs

From: H. Peter Anvin
Date: Wed Feb 22 2012 - 10:19:51 EST


On 02/22/2012 07:12 AM, Steven Rostedt wrote:
>
> Again, I'm using gcc 4.6.0 and maybe it has been fixed.
>

I think this really comes down to the branches being as biased as you
might have wanted for this case. gcc will reorder its basic blocks
based on what it thinks is best based on some kinds of voodoo and asm
goto is only one type of control transfer it will take into account.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/