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Re: [tree-ssa] Switch stmts and inserting on edges
- From: law at redhat dot com
- To: Jason Merrill <jason at redhat dot com>
- Cc: Diego Novillo <dnovillo at redhat dot com>, Andrew Macleod <amacleod at redhat dot com>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Fri, 30 May 2003 13:25:57 -0600
- Subject: Re: [tree-ssa] Switch stmts and inserting on edges
- Reply-to: law at redhat dot com
In message <wvlvfvs1bwb.fsf@prospero.boston.redhat.com>, Jason Merrill writes:
>On 30 May 2003 14:46:47 -0400, Diego Novillo <dnovillo@redhat.com> wrote:
>
>> On Fri, 2003-05-30 at 11:23, Andrew MacLeod wrote:
>>
>>> Any other suggestions? I havent thought of anything I actually like....
>>>
>> The problem is that SWITCH_EXPRs still have implicit semantics that are
>> getting in the way. I think this ought to be fixed by finishing Jason's
>> patch to expose SWITCH_EXPRs as explicit multi-way branches, or even
>> decision trees.
>
>Agreed.
Similarly for the backedge in loops.
Jeff