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Re: Bug in current snapshots.
- To: kgw at cswgmbh dot de, gcc-bugs at gcc dot gnu dot org
- Subject: Re: Bug in current snapshots.
- From: N8TM at aol dot com
- Date: Tue, 5 Oct 1999 08:47:52 EDT
In a message dated 10/5/99 5:10:12 AM EST, kgw@cswgmbh.de writes:
> Whenever I compile one of my projects that is quite
> vulnerable to floating point quirks, I have to enable the optimizer to
> get a decent result.
You may have a situation where the calculation is performed partly in
extended precision, even without requested optimization, where formerly none
of it was. If so, the -ffloat-store may make a difference. With further
optimization, perhaps the offending discrepancy is removed by additional
extended precision. In such a case, it ought to be possible to cure the
problem by strategic long double declarations. Don't the FAQ's cover this?
If you wish to investigate details, there are options to view the generated
code.
Tim
tprince@computer.org