[tree-ssa] live analysis on local static functions

[law@redhat.com]

In message <20031014142034.C18760@synopsys.com>, Joe Buck writes:
 >On Tue, Oct 14, 2003 at 11:03:41AM -0600, law@redhat.com wrote:
 >> A static variable which is never used really should go away, even if it
 >> has an initializer since it contributes nothing to observable behavior of
 >> the program.
 >
 >Unless the initializer has a side effect, of course.  (e.g. C++ object
 >that allocates/frees a resource in the ctor/dtor).
Of course :-)  We already handle that just fine :-)

jeff