What to remove after tree-ssa is merged?

[S. Bosscher]

It is not required for Ada right now because Ada doesn't work
with tree-ssa anyway.  And if it will, then we'll have to see
how to fit in the thing that PLACEHOLDER_EXPR is for now.  I
don't know what it is used for at present, but there has to be
a way (or there will have to be) to express the same thing in
GIMPLE.

But since Ada is lagging, like, three years on the rest of GCC,
and nobody so far has explained what PLACEHOLDER_EXPR is for
and if/how it has a GIMPLE equivalent...

Gr.
Steven

 
-----Original Message-----
From: kenner@vlsi1.ultra.nyu.edu
To: paolo.bonzini@polimi.it
Cc: gcc@gcc.gnu.org
Sent: 2/4/04 1:32 PM
Subject: Re:  What to remove after tree-ssa is merged?

    I remember you also removed PLACEHOLDER_EXPR.

That's required for Ada, so can't be removed.