Re: [Tinycc-devel] alinged/unaligned on OpenBSD

[grischka]

Herman ten Brugge via Tinycc-devel wrote:
> I did test this on arm32 openbsd. This is where the problem was.
> However the above patch fails. I will provide a new patch.
> I need to add support float/double/long double/pointers for this to work.

I would suggest just to forget it.  Nobody will ever need this.

If you want to do something then maybe rather try to get rid of
the ugly "sec->relocplt".  Instead you could use plt->reloc which
will get the correct section name "rel(a).plt" automatically and
hopefully will allow to get rid of some other related extra hacks too.

> > Btw, do we really need all these gen_increment_tcov ()'s?
> > Can't we just use the inc(0, TOK_INC) for all targets?
> I did some measurements.
> Compile tcc with itself 100 times with test coverage. (times in seconds):
>
>          function TOK_INC  slowdown
> x86_64      11.28   14.09       25%
> i386        14.80   18.08       22%
> arm32      233.53  415.94       78%
> arm64       83.53  104.47       25%
> riscv64     26.70   28.48        7%   (qemu 10 times)
>
> I did this because I saw a large slowdown.
> The risc target is measured in qemu so not that reliable.

But why needs it to be fast?  How can one make better conclusions
from studying a tcov data file if one conld open it 0.04 seconds
earlier?

-- gr

>     Herman