[tree-ssa] Optimizing silly ELSE clauses

[Richard Henderson]

On Thu, Aug 14, 2003 at 12:08:11PM -0600, law@redhat.com wrote:
> And if you do that, then you lose in cases were the conditional isn't
> testing "var".  If you try to make it dependent on the condition, then
> you're getting into the realm of a gross hack in the out-of-ssa pass.

I was thinking more of using the available expression table,
and searching it for ssa versions of the LHS that do have the
correct value.  I see that our CCP isn't set up to allow that.


r~