[Openmp-dev] Build is terribly slow on Arm

Johannes Doerfert via Openmp-dev openmp-dev at lists.llvm.org
Mon Jun 8 16:52:10 PDT 2020


[+David]


You are talking about compile time, right?

And the regression is caused by OpenMP (hence not present without 
-fopenmp), correct?



On 6/8/20 6:12 PM, Itaru Kitayama via Openmp-dev wrote:
> They were both Debug build, but it took 20-25 minutes to finish on Arm.
>
> On Tue, Jun 9, 2020 at 7:50 AM Itaru Kitayama <itaru.kitayama at gmail.com> wrote:
>> My OpenMP offloading app builds within a minute or so on
>> x86, but the same app takes longer than 5 minutes on Arm.
>> How do I investigate this further, supplying -v and post
>> the log here?
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