Re: Check results on PowerPC

[Paul Cercueil]

Hi Paulo,

Le jeu., août 18 2022 at 14:15:32 -0300, Paulo César Pereira de 
Andrade <paulo.cesar.pereira.de.andrade@gmail.com> a écrit :
> Em qui., 18 de ago. de 2022 às 12:52, Paul Cercueil
> <paul@crapouillou.net> escreveu:
> >  Hi Paulo,
>
>   Hi Paul,
>
> >  I don't know if that's a known thing, but there are several 
> > breakages
> >  on PowerPC (PPC32BE):
>
>   What operating system?

Linux, under qemu-user.

> >  FAIL: 3to2
> >  PASS: add
> >  PASS: align
> >  PASS: allocai
> >  PASS: allocar
> >  PASS: bp
> >  PASS: divi
> >  PASS: fib
> >  PASS: rpn
> >  PASS: ldstr
> >  PASS: ldsti
> >  PASS: ldstxr
> >  PASS: ldstxi
> >  PASS: ldstr-c
> >  PASS: ldstxr-c
> >  PASS: ldstxi-c
> >  FAIL: cvt
> >  PASS: hton
> >  PASS: bswap
> >  PASS: branch
> >  PASS: alu_add
> >  PASS: alux_add
> >  PASS: alu_sub
> >  PASS: alux_sub
> >  PASS: alu_rsb
> >  PASS: alu_mul
> >  PASS: alu_div
> >  PASS: alu_rem
> >  PASS: alu_and
> >  PASS: alu_or
> >  PASS: alu_xor
> >  PASS: alu_lsh
> >  PASS: alu_rsh
> >  PASS: alu_com
> >  PASS: alu_neg
> >  PASS: movzr
> >  PASS: fop_abs
> >  FAIL: fop_sqrt
> >  FAIL: varargs
> >  PASS: stack
> >  FAIL: clobber
> >  PASS: carry
> >  FAIL: call
> >  PASS: float
> >  PASS: jmpr
> >  PASS: live
> >  PASS: put
> >  PASS: qalu_mul
> >  PASS: qalu_div
> >  PASS: range
> >  PASS: ranger
> >  PASS: ret
> >  PASS: tramp
> >  PASS: va_list
> >
> >  Cheers,
> >  -Paul
>
>   I know it is broken for Darwin/BSD since
> https://git.savannah.gnu.org/cgit/lightning.git/commit/?id=38e20cebf6430f48ebcd1c8b608b3329abc0221a
>
>   If it is Linux or AIX, it should work in the latest official
> release. You might
> experiment with a bisect from
> https://git.savannah.gnu.org/cgit/lightning.git/commit/?id=e0383cb2de8eeaa30f86ae6c586740e8e93abbf6
> to the latest commit, as some change might have broken it. What is 
> quite
> possible, as most tests pass.

Actually I tested at the lightning-2.1.3 tag now, and these tests fail 
as well.

>   Apparently it is an issue with floating point registers.

I think so too.

Cheers,
-Paul