undefined ia64_double_zero in hs19

[Dr Andrew John Hughes]

On 10:24 Mon 29 Nov     , Matthias Klose wrote:
> On 29.11.2010 10:18, David Holmes wrote:
> > Matthias Klose said the following on 11/29/10 18:06:
> >> The hotspot build fails on ia64, ia64_double_zero is not defined anymore. The
> >> code references a "IA64 gcc bug", but I cannot find any open GCC report for
> >> this issue. Is this fixed upstream, or is the workaround still necessary? If
> >> it's the latter, please restore the ia64_double_zero definition.
> >
> > That was done a year ago:
> >
> > http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/8e7adf982378
> >
> > I suspect it was seen as some opportune "clean up".
> 
> apparently it's still in OpenJDK6.

It's still right there in OpenJDK7 too, including hotspot-comp:

#ifdef IA64
          // IA64 gcc bug                                                                                                          
          r = ( f == 0.0f ) ? (jdouble) f : (jdouble) f + ia64_double_zero;
#else
          r = (jdouble) f;
#endif

It appears to have been resurrected by:

changeset:   1892:126ea7725993
user:        bobv
date:        Tue Aug 03 08:13:38 2010 -0400
summary:     6953477: Increase portability and flexibility of building Hotspot

http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/126ea7725993

So gone in hs17 but brought back in hs19.
-- 
Andrew :)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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