> Am 26.01.2024 um 17:22 schrieb Thomas Schwinge <tschwi...@baylibre.com>:
>
> Hi!
>
> Great progress that you've made! :-)
>
>> On 2024-01-26T13:32:02+0100, Tobias Burnus <tbur...@baylibre.com> wrote:
>> Tobias Burnus wrote:
>>> Am 24.01.24 um 17:01 schrieb Tobias Burnus:
>>>> Okay to enable gfx1100 multilib building and to document gfx1100 in
>>>> the manual?
>>>
>>> and, with this patch, additionally gfx1030?
>
>> amdgcn: config.gcc - enable gfx1030 and gfx1100 multilib; add them to the
>> docs
>
>> --- a/gcc/doc/install.texi
>> +++ b/gcc/doc/install.texi
>> @@ -1258,12 +1258,12 @@ default set of libraries is selected based on the
>> value of
>>
>> @item amdgcn*-*-*
>> @var{list} is a comma separated list of ISA names (allowed values:
>> @code{fiji},
>> -@code{gfx900}, @code{gfx906}, @code{gfx908}, @code{gfx90a}). It ought not
>> -include the name of the default ISA, specified via @option{--with-arch}. If
>> -@var{list} is empty, then there will be no multilibs and only the default
>> -run-time library will be built. If @var{list} is @code{default} or
>> -@option{--with-multilib-list=} is not specified, then the default set of
>> -libraries is selected.
>> +@code{gfx900}, @code{gfx906}, @code{gfx908}, @code{gfx90a}, @code{gfx1030},
>> +@code{gfx1100}). It ought not include the name of the default ISA,
>> specified
>> +via @option{--with-arch}. If @var{list} is empty, then there will be no
>> +multilibs and only the default run-time library will be built. If
>> @var{list}
>> +is @code{default} or @option{--with-multilib-list=} is not specified, then
>> +the default set of libraries is selected.
>
> 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:
>
> [...]
> checking for suffix of object files... configure: error: in
> `[...]/amdgcn-amdhsa/gfx1100/libgcc':
> configure: error: cannot compute suffix of object files: cannot compile
> See `config.log' for more details
> make[1]: *** [Makefile:14105: configure-target-libgcc] Error 1
> [...]
>
> '[...]/amdgcn-amdhsa/gfx1100/libgcc/config.log':
>
> [...]
> 'gfx1100' is not a recognized processor for this target (ignoring
> processor)
> 'gfx1100' is not a recognized processor for this target (ignoring
> processor)
> /tmp/ccZdohcj.s:1:17: error: .amdgcn_target directive's target id
> amdgcn-unknown-amdhsa--gfx1100 does not match the specified target id
> amdgcn-unknown-amdhsa--gfx000
> .amdgcn_target "amdgcn-unknown-amdhsa--gfx1100"
> ^
> [...]
>
> Which version of LLVM should we be recommending?
A more recent one ;) unless we know of any fixed bugs in the assembler we’d
rely on I‘d day the oldest that works „or later“
Richard
>
> Grüße
> Thomas
