Messages in this thread | | | Date | Sun, 23 Jan 2005 02:44:52 -0500 | From | Chuck Ebbert <> | Subject | Re: [PATCH 1/12] random pt4: Create new rol32/ror32 bitops |
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On Sat, 22 Jan 2005 at 20:13:24 -0800 Matt Mackall wrote:
> So I think tweaks for x86 at least are unnecessary.
So the compiler looks for that specific sequence of instructions:
(a << b) | (a >> (sizeof(a) * 8 - b)
and recognizes that it means rotation? Wow.
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