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Re: what optimizations are invalid in java?

From: Tom Tromey <tromey at redhat dot com>
To: Jan Hubicka <jh at suse dot cz>
Cc: gcc at gcc dot gnu dot org, java at gcc dot gnu dot org
Date: 13 Mar 2002 09:26:03 -0700
Subject: Re: what optimizations are invalid in java?
References: <20020310122105.GD13110@atrey.karlin.mff.cuni.cz> <87n0xd1s91.fsf@creche.redhat.com> <20020313100138.GD31812@atrey.karlin.mff.cuni.cz>
Reply-to: tromey at redhat dot com

>>>>> "Jan" == Jan Hubicka <jh@suse.cz> writes:

Jan> fold_const: We can remove dead parts of expresisons poossibly eliminating
Jan> trap.

Jan> Code not executed is unreachable, dead code is code executed but
Jan> with void results.  In fold const we can delete as dead for
Jan> instance (a/b)*0 that may trap in case b is 0.

Thanks.  In that case I think we can only remove dead code that is
known not to generate an exception.

Tom

References:
- what optimizations are invalid in java?
  - From: Jan Hubicka
- Re: what optimizations are invalid in java?
  - From: Tom Tromey
- Re: what optimizations are invalid in java?
  - From: Jan Hubicka

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