Re: [RFC] Enable ARCH_USE_BUILTIN_BSWAP by default

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From: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Date: Thu, 29 Oct 2015 12:06:34 +0900

> I wonder if we could provide a generic weak version in the lib/
> directory which just uses the existing __arch_swab32 et al? Does GCC
> use a standard function call ABI for __bswap[sd]i2 or can it be
> 'special'?

That's undesirable compared to inlining the asm.
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