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Re: [PATCH]: Reduce memory usage and compile time necessary for pruning
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Daniel Berlin <dberlin at dberlin dot org>
- Cc: gcc-patches at gcc dot gnu dot org, Diego Novillo <dnovillo at redhat dot com>
- Date: Sat, 4 Mar 2006 18:41:11 +0100
- Subject: Re: [PATCH]: Reduce memory usage and compile time necessary for pruning
- References: <1140412891.17649.43.camel@linux.site> <200603041638.54950.ebotcazou@adacore.com> <1141487940.29060.24.camel@localhost>
> This may get a pretty conservative answer here if the above code is
> common, possibly waste a lot of memory and compile time.
It is pretty common for the Ada compiler, we have dozens of similar ICEs in
our internal testsuite at the moment.
> The only way i can think of to determine which vdefs are from the lhs of
> a call is to temporarily move the call clobbered bitmap out of the way,
> call update_stmt, and see what vdefs are left.
>
> It scares me that this even popped into my head.
Thanks for your feedback. :-)
--
Eric Botcazou