Re: Itanium support is back in GCC 15

On Thu, 7 Nov 2024 16:48:49 -0500
Arne Vajhøj <arne@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