[Info-vax] Itanium support is back in GCC 15

[Michael S]

On Thu, 7 Nov 2024 16:48:49 -0500
Arne Vajhøj <arne at vajhoej.dk> wrote:

> On 11/7/2024 12:33 PM, gcalliet wrote:
> > Le 04/11/2024 à 21:16, Arne Vajhøj a écrit :  
> >> I wish someone would volunteer to create VMS support
> >> in GCC 16 or whatever!
> >>  
> > Because I created (canadian method) Gnat Ada (on gcc) for VMS
> > Itanium, and because we were on gcc 4.7, there is some work ahead,
> > but why not :)
> > 
> > The big issue is the step to gcc 5, where they upgraded to c++
> > mode. It is one of the reasons why Adacore didn't continue support
> > of gnat ada on VMS in 2015.  
> 
> VMS x86-64 has a better C++ compiler than VMS Itanium.
> 

According to the benchmarks that you posted here several months (a
year?) ago, VMS x86-64 compilers are quite awful comparatively to
x86-64 compilers available on Windows/Linux/BSD.
Do you want to say that VMS Itanium compilers are worse?

> But I have no idea which is best for boot strapping:
> 
> g++/Linux -> GXX/VMS
> 
> clang/VMS -> GXX/VMS
> 
> I assume that if a recent GXX/VMS is working then getting
> GFortran and Gnat working would become a lot easier.
> 
> But obviously a lot of work. And I do not expect it to happen. Just
> a thought given that someone wanted to support GCC/Itanium.
> 
> Arne
>