llvm dev - Mar 2015 - [LLVMdev] Mul & div support for wider-than-legal types

> mul can be inlined easily if necessary for arbitrary sizes, but div is very
expensive.
Shall I file a bug for "implement FFT in LLVM"?

Tim.

On Fri, Mar 20, 2015 at 08:06:11PM -0700, Tim Northover
wrote:
> > mul can be inlined easily if necessary for arbitrary sizes, but div is
very expensive.
> 
> Shall I file a bug for "implement FFT in LLVM"?
I didn't say it is the most efficient algorithm :) That's why I asked
about the purpose.

Joerg

On Sun, Mar 22, 2015 at 5:57 AM Joerg Sonnenberger <joerg at
britannica.bec.de>
wrote:
> On Fri, Mar 20, 2015 at 08:06:11PM -0700, Tim Northover wrote:
> > > mul can be inlined easily if necessary for arbitrary sizes, but
div is
> very expensive.
> >
> > Shall I file a bug for "implement FFT in LLVM"?
>
> I didn't say it is the most efficient algorithm :) That's why I
asked
> about the purpose.
>
> Joerg
>
 Can you suggest an algorithm and implementation then?
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