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Re: [tree-ssa] Merge results as of 2003-05-06
- From: law at redhat dot com
- To: Jason Merrill <jason at redhat dot com>
- Cc: Diego Novillo <dnovillo at redhat dot com>, gcc at gcc dot gnu dot org
- Date: Thu, 08 May 2003 00:29:36 -0600
- Subject: Re: [tree-ssa] Merge results as of 2003-05-06
- Reply-to: law at redhat dot 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