Some Haifa scheduler bugs

[Paul Koning]

"law@cygnus.com" wrote:
> However, for execution tests that fail, I wonder how many (if any) are 
> caused by -fsched-spec-load-dangerous.  If I remember right that
> relies on the OS to support non-faulting loads from zero.

If that switch indeed depends on not faulting references to zero, it
probably isn't worth having.  Or if it's kept it needs a warning that
in many OS's it will fail.  The reason is that faulting on references
to zero is universally considered a Good Thing and many OS's go out of
their way to provide that feature.

	paul