Re: [patch] install.texi: For gcn, recommend LLVM 15, unless gfx1100 is disabled

[Andrew Stubbs <ams@baylibre.com>]

On 26/01/2024 16:45, Tobias Burnus wrote:
> Hi,
> 
> Thomas Schwinge wrote:
>> amdgcn: config.gcc - enable gfx1030 and gfx1100 multilib; add them to 
>> the docs
>> ...
>> Further down in that file, we state:
>>      @anchor{amdgcn-x-amdhsa}
>>      @heading amdgcn-*-amdhsa
>>      AMD GCN GPU target.
>>      
>>      Instead of GNU Binutils, you will need to install LLVM 13.0.1, or later, [...]
>>
>> LLVM 13.0.1 may still be fine for gfx1030
>> ('[...]/amdgcn-amdhsa/gfx1030/libgcc' does get built; I've not further
>> tested), but it's not sufficient for gfx1100 anymore:
> 
> Testing with the system compilers here, llvm-mc-14.0.6 also fails while 
> llvm-mc-15.0.7 accepts it.
> 
>> Which version of LLVM should we be recommending?
> 
>  >= LLVM 15, I think. How about the following wording? It still mentions 
> LLVM 13.0.1 for those that really need it but with for the default 
> setup, it requires 15+.

OK.

Andrew