[tree-ssa] Merge results as of 2003-05-06

[law@redhat.com]

In message <wvl3cjq6jm2.fsf@prospero.boston.redhat.com>, Jason Merrill writes:
 >> FAIL: g++.dg/eh/cleanup1.C (test for excess errors)
 >>
 >>     This causes the compiler to enter an infinite loop in
 >>     function.c:preserve_temp_slots.  The linked list temp_slots
 >>     is circular.  The program compiles fine with
 >>     -fdisable-simple.
 >
 >I don't think it's circular, I think it's just unimaginably huge.  I think
 >we aren't currently dealing with temp slots properly in GENERIC, so they
 >build up instead of being reused.  Investigating.
It could well be that they're just insanely large -- let's say I've spent
a little time getting familiar with cleanup1.C.  It's a major source of
headaches for the tree-ssa optimizers due to it's insane nesting of
its TRY_CATCH/TRY_FINALLY blocks.

jeff