On Wed, Apr 19, 2006 at 02:47:54PM -0700, Mark Mitchell wrote: > On the regression front, we have 61 open serious (P3 or higher) > regressions that are specific to 4.2. I have not triaged these, so > there is a good chance than more than a few relate to Ada, Java, > Fortran, or non-primary, non-secondary platforms. I think that, > therefore, the regressions which are common to 4.1 and 4.2 are as > serious an issue as the regressions which are specific to 4.2, at this > point. > > On the functionality front, how up to date is: > > http://gcc.gnu.org/wiki/GCC%204.2%20Projects > > ? Are some of the submitted projects actually checked in? Are some of > them no longer likely to be completed for 4.2? Please update the Wiki > page accordingly, if your project is incorrectly represented. > > I'm aware of the following major projects for 4.2 that are somewhat in > limbo: > > 1) sign-extension elimination > > Roger's approved this in principle, but it sounds like the patch doesn't > quite apply, and/or there are issues on IA32? What is the current
Just a simple modification is needed to apply. > status here? This is a nice optimization, and it would be nice to have > in 4.2; how can we move this forward? > The current sign-extension elimination implementation doesn't provide any benefit for x86-64. We are investigating a different, simple approach for x86-64 on the same SEE infrastructure. For this reason, we'd like to see it in 4.2. As for x86, I don't think it will be very useful. BTW, If anyone is interested in working on SEE for x86-64, please drop me a line. H.J.
