[fpc-devel] Can FPC at least give a hint/warning?
Marco van de Voort
marcov at stack.nl
Tue Nov 8 11:22:20 CET 2016
In our previous episode, Mark Morgan Lloyd said:
> The Solaris and C communities appeared to take the line that a correct
> compiler "could not" generate unaligned accesses, although they held off
> clarifying whether "could" in that context means "if it does it's an
> error" or "it must rearrange data to avoid an error".
> I believe that Solaris and in some cases Linux can handle unaligned
> accesses in the kernel, although there's obviously a significant
> performance penalty.
I can remember the early powerpc ports where I came into trouble with the
NetBSD port because the Linux kernel used emulation to fix unaligned float
loads/stores, while NetBSD didn't.
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