[Fortran, committed to trunk] Fixed powerpc "unsigned" printing of

[Toon Moene]

John David Anglin wrote:
> 
> > > On the latter [powerpc-unknown-linux-gnu], even the following is
> > > incorrect:
> > >
> > >       INTEGER*1 I
> > >       I = -9
> > >       PRINT*,I
> > >       END
> > >
> > > which prints 247 ;-)
> >
> > I fixed this with the attached patch [applied to trunk].  Make bootstrap
> > (C and Fortran), make check (Fortran only) and make install on
> > powerpc-unknown-linux-gnu.
> 
> Did that fix f90-intrinsic-numeric.f on the powerpc?

Nope - it was a fix in the run-time library - which isn't involved in
this problem at all :-)

> I did a liitle more digging on the pa.  It beginning to look like some
> kind of aliasing problem.  It important to note that the test passes
> at -O0 but not at -O1.  At -O0, there are insns that write the i*2
> values of j and ja to virtual stack slots.  However, at -O1, it appears
> the write for ja is deleted and as a result ka is read from an unitialized
> slot.  I got as far as ffestd_stmt_pass_ in trying to locate the problem.

Thanks !  I hope to have some time this weekend to dive into the
problem.

-- 
Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346 214290
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