Re: limited register renaming at -O2

[Andreas Tobler <toa at pop dot agri dot ch>]

Andreas Tobler wrote:
 
> Jan Hubicka wrote:
> invoke.texi
> > +
> > + @table @gcctabopt
> > + @item -fmessy-debugging
> > + @opindex fmessy-debugging
> > + Some optimizations can be stronger if compiler give up ability to generate
> > + at least approximately usefull debug information for optimized programs.
> > + These transformation are not done when @option{-g} switch is not specified,
> > + as politics is to get the code with @option{-g} and without equivalent,
> > + except for debugging section.
> > +
> > + This optimization enables such transformations.  It is still compatible with
> > + @option{-g}, but debugging resulting programs will be even higher challenge.
> >
> >   @table @gcctabopt
> >   @item -fstrength-reduce

Correct?

--- invoke.texi.orig    Sat Sep 29 12:48:21 2001
+++ invoke.texi Sat Sep 29 10:47:06 2001
@@ -3425,6 +3425,7 @@

 This optimization enables such transformations.  It is still compatible with
 @option{-g}, but debugging resulting programs will be even higher challenge.
+@end table

 @table @gcctabopt
 @item -fstrength-reduce

Andreas