------- Comment #2 from rguenth at gcc dot gnu dot org 2008-01-11 16:39 -------
We even mark all pointed-to vars of value-escaping pointers as call-clobbered.
So I believe NMTs itself need never be call-clobbered. But there's also
hints that we cover bugs somewhere:
FIXME: This is not quite right. They should only be
clobbered if value_escapes_p is true, regardless of whether
they point to global memory or not.
So removing this code and fixing all the bugs would be nice.
It is the cause of a bunch of clobbering. */
Also it is not at all clear to me what MTAG_GLOBAL is all about (and its
appearant relation to call clobbered state).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34743
