[cfe-dev] [Openmp-dev] Clang does not generate `__kmpc_threadprivate_register_vec` for threadprivate arrays of objects

[Alexey Bataev via cfe-dev]

Most probably,  because it is not required. Everything works with the regular runtime function.

Best regards,
Alexey Bataev

21 нояб. 2018 г., в 0:43, Simone Atzeni via Openmp-dev <openmp-dev at lists.llvm.org<mailto:openmp-dev at lists.llvm.org>> написал(а):

Hi,

Given an array of objects declared OpenMP threadprivate, such as:

myclass x[4];
#pragma omp threadprivate (x)

Clang generates a call to ` __kmpc_threadprivate_register` instead of ` __kmpc_threadprivate_register_vec`.
The ` __kmpc_threadprivate_register` gets as size “sizeof(myclass) * array_size” so it works just fine, but I was wondering why not using the `__kmpc_threadprivate_register_vec` provided in the runtime?
Is there a particular reason?

Thanks.
Simone
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