> On Mon, Jan 15, 2018 at 5:53 PM, H.J. Lu <hjl.to...@gmail.com> wrote:
> > On Mon, Jan 15, 2018 at 3:38 AM, H.J. Lu <hjl.to...@gmail.com> wrote:
> >> On Mon, Jan 15, 2018 at 12:31 AM, Richard Biener
> >> <richard.guent...@gmail.com> wrote:
> >>> On Sun, Jan 14, 2018 at 4:08 PM, H.J. Lu <hjl.to...@gmail.com> wrote:
> >>>> Now my patch set has been checked into trunk.  Here is a patch set
> >>>> to move struct ix86_frame to machine_function on GCC 7, which is
> >>>> needed to backport the patch set to GCC 7:
> >>>>
> >>>> https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01239.html
> >>>> https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01240.html
> >>>> https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01241.html
> >>>>
> >>>> OK for gcc-7-branch?
> >>>
> >>> Yes, backporting is ok - please watch for possible fallout on trunk and 
> >>> make
> >>> sure to adjust the backport accordingly.  I plan to do GCC 7.3 RC1 on
> >>> Wednesday now with the final release about a week later if no issue shows
> >>> up.
> >>>
> >>
> >> Backport is blocked by
> >>
> >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83838
> >>
> >> There are many test failures due to lack of comdat support in linker on 
> >> Solaris.
> >> I can limit these tests to Linux.
> >
> > These are testcase issues and shouldn't block backport to GCC 7.
> 
> It makes the option using thunks unusable though, right?  Can you simply make
> them hidden on systems without comdat support?  That duplicates them per TU
> but at least the feature works.  Or those systems should provide the thunks 
> via
> libgcc.
> 
> I agree we can followup with a fix for Solaris given lack of a public
> testing machine.

My memory is bit dim, but I am convinced I was fixing specific errors for 
comdats
on Solaris, so I think the toolchain supports them in some sort, just is more
restrictive/different from GNU implementation.

Indeed, i think just producing sorry, unimplemented message is what we should do
if we can't support retpoline on given target.

Honza
> 
> Richard.
> 
> >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83839
> >>
> >> Bootstrap failed on Dawning due to lack of ".set" directive in assembler.  
> >> I
> >> uploaded a patch:
> >>
> >> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43124
> >>
> >> There is no confirmation on it.  Also there may be test failures on Dardwin
> >> due to difference in assembly output.
> >
> > I posted a patch for Darwin build:
> >
> > https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01347.html
> >
> > This needs to be checked into trunk before I can start backport to GCC 7.
> >
> > --
> > H.J.

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