llvm way only tests?

[Gabor Greif]

Hi Ben,

from my config.status:

S["OptCmd"]=""
S["ac_ct_OPT"]="opt"
S["OPT"]=""
S["LlcCmd"]=""
S["ac_ct_LLC"]="llc"
S["LLC"]=""
S["ClangCmd"]="clang"
S["CLANG"]="clang"

This is also what my config summary visualizes.
I have LLVM 5.0.2 installed. It *seems* to do the job.

Cheers,

    Gabor



On 11/29/18, Ben Gamari <ben at well-typed.com> wrote:
> Gabor Greif <ggreif at gmail.com> writes:
>
>> Hi all,
>>
>> what is the magic incantation for running tests only when the llvm
>> tools (e.g. `opt`) are around?
>>
>> I am currently declaring the test as
>>
>> test('T15155l',
>>   [ only_ways(llvm_ways),
>>   ], run_command, ['$MAKE -s --no-print-directory T15155l'])
>>
>> but it won't be included neither in the optasm builds (which is okay)
>> nor in the llvm builds (gets skipped unexpetedly) I looked at the
>> other test which are declared similarly, and they behave just like
>> mine.
>>
> Hmm, I suspect the logic in testsuite/mk/test.mk for determining whether
> LLVM is available is flawed. It concludes that LLVM is unavailable if
> LLC=llc. I can only assume that the reason for this is that configure
> will often find the system's on PATH (in which case LLC=llc) which
> likely isn't the LLVM release that we expect.
>
> However, we probably ought to be more careful here.
>
> Could you comment on what LLC is set to in your environment?
>
> Cheers,
>
> - Ben
>
>