[Openmp-commits] [PATCH] D82245: [libomptarget] Add support for target update non-contiguous

Chi Chun Chen via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Fri Jun 19 15:14:48 PDT 2020

cchen created this revision.
cchen added a reviewer: ABataev.
Herald added a project: OpenMP.
Herald added a subscriber: openmp-commits.

This patch is the runtime support for https://reviews.llvm.org/D79972.

In order not to modify the tgt_target_data_update information but still be
able to pass the extra information for non-contiguous map item (offset,
count, and stride for each dimension), this patch overload arg when
the maptype is set as OMP_TGT_MAPTYPE_DESCRIPTOR. The origin arg is for
passing the pointer information, however, the overloaded arg is an
array of descriptor_dim:

  struct descriptor_dim {
    int64_t offset;
    int64_t count;
    int64_t stride

and the array size is the dimension size. In addition, since we
have count and stride information in descriptor_dim, we can replace/overload the
arg_size parameter by using dimension size.

  rG LLVM Github Monorepo



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