Hi, On Tue, 28 Jan 2014, Jakub Jelinek wrote:
> There are two kinds of clobbers, the direct ones, which surely can be > safely removed by ehcleanup1 if they are the only reason why there is a > landing pad which will be rethrown outside of the current function, You can only safely (as in, not introducing false conflicts for stack slots) remove them before inlining, _if_ the inliner would add them back in ... > For the direct cleanups, the important thing is that they are necessarily > local variables in the current function, so when returning from that > function, whether normally or abnormally, the inliner still has all the info > about them. If it wants, it can add the corresponding clobbers itself ... which it doesn't. > (not sure if it does or doesn't bother, but if it doesn't bother right > now, it certainly could add those in the future if it proves to be > important). Ciao, Michael.
