[PATCH] D22481: Allow negative lower bound in array sections based on pointers

[David S via cfe-commits]

davidsh created this revision.
davidsh added reviewers: carlo.bertolli, arpith-jacob, kkwli0, sfantao, ABataev.
davidsh added a subscriber: cfe-commits.

OpenMP 4.5 removed the restriction that array section lower bound must be non negative.
This change is to allow negative values for array section based on pointers.
For array section based on array type there is still a restriction: "The array section must be a subset of the original array."

https://reviews.llvm.org/D22481

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/Sema/SemaExpr.cpp
  test/OpenMP/target_depend_messages.cpp
  test/OpenMP/target_enter_data_depend_messages.cpp
  test/OpenMP/target_exit_data_depend_messages.cpp
  test/OpenMP/target_map_messages.cpp
  test/OpenMP/target_parallel_depend_messages.cpp
  test/OpenMP/target_parallel_for_depend_messages.cpp
  test/OpenMP/target_parallel_for_map_messages.cpp
  test/OpenMP/target_parallel_for_simd_depend_messages.cpp
  test/OpenMP/target_parallel_for_simd_map_messages.cpp
  test/OpenMP/target_parallel_map_messages.cpp
  test/OpenMP/target_update_depend_messages.cpp
  test/OpenMP/task_depend_messages.cpp

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