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alternative to -ffloat-store on x86?
- To: "Theodore C. Belding" <Ted dot Belding at umich dot edu>
- Subject: alternative to -ffloat-store on x86?
- From: Stephen L Moshier <moshier at mediaone dot net>
- Date: Tue, 24 Nov 1998 10:26:40 -0500 (EST)
- cc: egcs at cygnus dot com
- Reply-To: moshier at mediaone dot net
> Is -ffloat-store still the best way
For most purposes it never was the best way; but there are several
problems, and still no way to solve all of them at once. By far the
most common discrepancies that real programs run into are roundoff
issues. These are cured by setting the coprocessor to the same
rounding precision as the variables you declared in your source
program. That precision setting is a user level function call and
GNU CC does not know anything about it.