Messages in this thread | | | Date | Thu, 8 Jun 2006 01:00:04 -0600 | From | "Brian F. G. Bidulock" <> | Subject | Re: [PATCH] use unlikely() for current_kernel_time() loop |
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Andi,
On Thu, 08 Jun 2006, Andi Kleen wrote: > > Originally because it made assembly too unreadable. Later it was discovered > it produces smaller code too. >
Thank you for the explanation. But, this brings to mind two other questions:
Does the option not also make assembly less readable on other architectures?
If one is interested in smaller code, why not use -Os?
Also, does -fno-reorder-blocks actually defeat __builtin_expect()? (GCC documentation doesn't really say that.) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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