Re: [PATCH v2] lib/mpi: fix build with clang

[Segher Boessenkool]

Hi Mathieu,

On Fri, Jun 21, 2019 at 09:55:54PM +0200, Mathieu Malaterre wrote:
> Remove superfluous casts on output operands to avoid warnings on the
> following macros:
> 
> * add_ssaaaa(sh, sl, ah, al, bh, bl)
> * sub_ddmmss(sh, sl, ah, al, bh, bl)
> * umul_ppmm(ph, pl, m0, m1)

The patch is fine of course, but you might want to look at not using
these asm macros at all: GCC can handle multi-word arithmetic just fine
by itself, probably better than these macros do even.


Segher