[all-commits] [llvm/llvm-project] ddbd21: [OPENMP]Do not add TGT_OMP_TARGET_PARAM flag to no...

[Alexey Bataev via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ddbd21d288f6ff7d175f18ddee0ee6407626445a
      https://github.com/llvm/llvm-project/commit/ddbd21d288f6ff7d175f18ddee0ee6407626445a
  Author: Alexey Bataev <a.bataev at hotmail.com>
  Date:   2020-08-12 (Wed, 12 Aug 2020)

  Changed paths:
    M clang/lib/CodeGen/CGOpenMPRuntime.cpp
    M clang/test/OpenMP/target_map_codegen_18.inc
    M clang/test/OpenMP/target_map_codegen_20.cpp
    M clang/test/OpenMP/target_map_codegen_31.cpp
    M clang/test/OpenMP/target_map_codegen_32.cpp
    M clang/test/OpenMP/target_teams_map_codegen.cpp

  Log Message:
  -----------
  [OPENMP]Do not add TGT_OMP_TARGET_PARAM flag to non-captured mapped arguments.

If the arguments are mapped, but are actually not used in the target
region, the compiler still adds attribute TGT_OMP_TARGET_PARAM for such
arguments. It makes the libomptarget to add such parameters to the list
of arguments, passed to the kernel at the runtime, and may lead to
incorrect results/crashes during execution.

Differential Revision: https://reviews.llvm.org/D85755