Hi,
On Sun, Apr 17, 2011 at 06:34:59PM +0200, Jan Hubicka wrote:
> Hi,
>
> this patch drops vtable_method filed. I never understood what it is
> about but reading PR20991 I am convinced that we hit the same
> problem with work on new devirutalization code. I implemented what
> Mark describe as "i
> On Mon, 18 Apr 2011, Jan Hubicka wrote:
>
> > > Ah, no. We _did_ that in CCP but now we only adjust the OBJ_TYPE_REF
> > > expr in CCP and defer to fold_stmt to eventually "devirtualize" it.
> > > See PR45878. Then rev.165435 was necessary, as we dropped OBJ_TYPE_REF
> > > for the non-devirtua
On Mon, 18 Apr 2011, Jan Hubicka wrote:
> > Ah, no. We _did_ that in CCP but now we only adjust the OBJ_TYPE_REF
> > expr in CCP and defer to fold_stmt to eventually "devirtualize" it.
> > See PR45878. Then rev.165435 was necessary, as we dropped OBJ_TYPE_REF
> > for the non-devirtualized call a
> Ah, no. We _did_ that in CCP but now we only adjust the OBJ_TYPE_REF
> expr in CCP and defer to fold_stmt to eventually "devirtualize" it.
> See PR45878. Then rev.165435 was necessary, as we dropped OBJ_TYPE_REF
> for the non-devirtualized call as well. As both cases were because
Hmm, sounds
On Mon, 18 Apr 2011, Jan Hubicka wrote:
> > > notice that OBJ_TYPE_REF is useless since foo got devitualized and it
> > > holds alive
> > > the useless s._vptr.S = &_ZTV1S[2]. We want to drop OBJ_TYPE_REF at time
> > > we fold
> > > first argument to constant.
> >
> > At some point we dropped
> > notice that OBJ_TYPE_REF is useless since foo got devitualized and it holds
> > alive
> > the useless s._vptr.S = &_ZTV1S[2]. We want to drop OBJ_TYPE_REF at time
> > we fold
> > first argument to constant.
>
> At some point we dropped all OBJ_TYPE_REF with direct fn but that lead to
> issu
On Sun, 17 Apr 2011, Jan Hubicka wrote:
> Hi,
> this patch drops vtable_method filed. I never understood what it is about but
> reading
> PR20991 I am convinced that we hit the same problem with work on new
> devirutalization code.
> I implemented what Mark describe as "ideal solution" there - i
Hi,
this patch drops vtable_method filed. I never understood what it is about but
reading
PR20991 I am convinced that we hit the same problem with work on new
devirutalization code.
I implemented what Mark describe as "ideal solution" there - i.e. teaching
cgraph that
virtual functions might bec
