[Bug target/63534] [5 Regression] Bootstrap failure on x86_64/i686-linux

["evstupac at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63534

--- Comment #36 from Stupachenko Evgeny <evstupac at gmail dot com> ---
(In reply to Iain Sandoe from comment #35)
> (In reply to Stupachenko Evgeny from comment #33)
> > Created attachment 33769 [details]
> > patch includes 3 patches fixing darwin bootstrap
> 
> > Do you have any ideas where darwin can treat the LC0 symbol so?
> 
> This deserves a proper answer - but I don't have enough context to give one.
> - can you point me at something specific to build or attach the .i and .s
> file relevant?

I've created PR63618 and PR63620 with small reproducers.
PR63620 is darwin only issue (note that patch from PR63618 should be applied).

> 
> Mike - any comments?
> 
> > Please try attached patch (includes all fixes) moving pushtf split earlier.
> > The bootstrap (c,c++,fortran,lto) on MAC passed (patch applied on top of
> > 216304).
> 
> this worked for me - although we're still hosed by multiple other issues
> from later commits.