On Fri, 18 Jan 2019, Jakub Jelinek wrote:
> On Thu, Jan 17, 2019 at 03:43:05PM +0100, Jakub Jelinek wrote:
> > > So we do not care to optimize this to only clobber the vars that
> > > are appear live over the EH edge?
> >
> > Wouldn't that be quite expensive (especially at that spot in the inline
On Thu, Jan 17, 2019 at 03:43:05PM +0100, Jakub Jelinek wrote:
> > So we do not care to optimize this to only clobber the vars that
> > are appear live over the EH edge?
>
> Wouldn't that be quite expensive (especially at that spot in the inliner)?
> I could surely defer that (at the spot in copy_
On Thu, Jan 17, 2019 at 03:06:57PM +0100, Richard Biener wrote:
> > + tree new_var = *t;
> > + if (VAR_P (new_var)
> > + && !DECL_HARD_REGISTER (new_var)
> > + && !TREE_THIS_VOLATILE (new_var)
> > + && !DECL_HAS_VALUE_EXPR_P (new_var)
> > + && !is_gimple_reg (new_var)
>
On Thu, 17 Jan 2019, Jakub Jelinek wrote:
> Hi!
>
> As the following testcases show, we are unable to share stack slots
> for (large) variables from inline functions if something in those inline
> functions can throw externally.
>
> The issue is that the clobbers we have even in the EH paths
> a
Hi!
As the following testcases show, we are unable to share stack slots
for (large) variables from inline functions if something in those inline
functions can throw externally.
The issue is that the clobbers we have even in the EH paths
are usually removed by ehcleanup1 which attempts to make the
