Re: cpu vs CPUTYPE

On 9/6/26 19:48, Jan Stary wrote:
> On Jun 07 22:15:41, [email protected] wrote:
>> The Intel Core i7-4600U (4th Gen) official architectural code name is
>> Haswell, which should be the CPUTYPE.
> 
> Thanks. Reading at the lists of Intel code names
> sorted out CPUTYPE for me on a few amd64 machines.

I think the important point is that CPUTYPE is sent to the compiler, so
it has to be a value accepted by the compiler and be same as or earlier
than the host cpu.

Use `clang --print-supported-cpus` to get a list of supported values,
then the trick is linking that list to user visible model numbers.

You can use llc to get the cpu type of the host machine

% llc --version
...
  Host CPU: sandybridge
...

You need to buildworld with WITH_CLANG_EXTRAS=yes to get llc in base, so
install the llvm pkg and add the version - eg. llc21


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Shane Ambler