Casting to intptr_t states the intent of an integer to pointer cast
more clearly and ensures that the cast causes no loss of precision on
any platforms. LLP64 platforms eg. have a long value of 4 bytes and
pointer values of 8 bytes which may even cause compiler errors.
Fixes PR 96608
Would need t
COFF targets currently do not support COMDAT groups. On MinGW targets
GCC instead puts symbols part of a COMDAT group inside of sections
annotated with the .linkonce GAS directive. This leads to GAS
generating a section so that the COMDAT name is the same as the name
of the actual symbol.
When usi
workaround linkage succeeds.
On Fri, Jul 17, 2020 at 9:31 AM Richard Biener
wrote:
>
> On Thu, Jul 16, 2020 at 3:05 PM Markus Böck via Gcc-patches
> wrote:
> >
> > COFF targets currently do not support COMDAT groups. On MinGW targets
> > GCC instead puts symbols part
names from LTO symtab then the ones from ltrans since in first
> case we do ELF style comdat group that is keyed differently than the
> linkonce extension?
>
> Honza
> >
> > On Fri, Jul 17, 2020 at 9:31 AM Richard Biener
> > wrote:
> > >
> > > On Thu,
-definition flag as a workaround linkage succeeds.
> > >
> > > So the problem is caused by fact that we give linker different comdat
> > > group names from LTO symtab then the ones from ltrans since in first
> > > case we do ELF style comdat group that is keyed diff
GCC at the moment uses COMDAT groups for things like virtual thunks,
even on targets that do not support COMDAT groups. This has not been a
problem as on platforms not supporting these (such as PE COFF on
Windows), the backend handled it through directives to GAS. GCC would
simply use a .linkonce d
