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Re: [wide-int] Add fast path for hosts with HWI widening multiplication


On Thu, May 8, 2014 at 12:18 PM, Richard Sandiford
<rdsandiford@googlemail.com> wrote:
> Kenneth Zadeck <zadeck@naturalbridge.com> writes:
>> everyone who has a private port will hate you forever.   note that i
>> have 2 of them.
>
> Got any other ideas though?  I suppose if we're prepared to break
> compatibility with whatever the upstream of longlong.h is, we could
> make more use of intN_t and uintN_t.
>
> Having a whitelist of hosts seems like the best fix though.
> I'm not sure the default umul_ppmm is going to be any better
> than not defining it.
>

Can you add a configure time check if

typedef unsigned int UTItype __attribute__ ((mode (TI)));

is supported?

-- 
H.J.


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