On Sat, 1 Mar 2008, Richard Guenther wrote: > > This is a request to depcrecate -ftrapv which has numerous problems > making it not work as expected since a long time. As nobody seems > to have the energy to ensure it is working I propose to deprecate it > for GCC 4.3 to make it possible to remove it during 4.4 (and not > block removing libcall notes by it).
Actually not wrapping libcall notes around the libcalls will fix some bugs with -ftrapv (not that it would work then -- the tree optimizers break it completely, then expansion, then the libcall notes and then libgcc itself). Still, -ftrapv is broken and we should get rid of it. But there is probably no hurry to do so for 4.3, it just would be nice to see it all gone in 4.4 ;) Richard.
