[all-commits] [llvm/llvm-project] ff78cd: [flang] fix private pointers and default initializ...

[jeanPerier via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ff78cd5f3d6ae8e7084f0aff4df4164ff5a38af9
      https://github.com/llvm/llvm-project/commit/ff78cd5f3d6ae8e7084f0aff4df4164ff5a38af9
  Author: jeanPerier <jperier at nvidia.com>
  Date:   2024-12-05 (Thu, 05 Dec 2024)

  Changed paths:
    M flang/include/flang/Lower/AbstractConverter.h
    M flang/lib/Lower/Bridge.cpp
    M flang/lib/Lower/OpenMP/DataSharingProcessor.cpp
    A flang/test/Lower/OpenMP/delayed-privatization-default-init.f90
    M flang/test/Lower/OpenMP/delayed-privatization-pointer.f90
    M flang/test/Lower/OpenMP/private-derived-type.f90
    A flang/test/Lower/do_concurrent_local_default_init.f90

  Log Message:
  -----------
  [flang] fix private pointers and default initialized variables (#118494)

Both OpenMP privatization and DO CONCURRENT LOCAL lowering was incorrect
for pointers and derived type with default initialization.

For pointers, the descriptor was not established with the rank/type
code/element size, leading to undefined behavior if any inquiry was made
to it prior to a pointer assignment (and if/when using the runtime for
pointer assignments, the descriptor must have been established).

For derived type with default initialization, the copies were not
default initialized.



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