[PATCH] D64356: [OPENMP]Initial fix PR42392: Improve -Wuninitialized warnings for OpenMP programs.

[Alexey Bataev via Phabricator via cfe-commits]

ABataev created this revision.
ABataev added reviewers: NoQ, Szelethus, dcoughlin, xazax.hun, a.sidorin, george.karpenkov, szepet.
Herald added subscribers: jdoerfert, jfb, guansong, rnkovacs.
Herald added a project: clang.

Some OpenMP clauses rely on the values of the variables. If the variable
is not initialized and used in OpenMP clauses that depend on the
variables values, it should be reported that the uninitialized variable
is used in the OpenMP clause expression.
This patch adds initial processing for uninitialized variables in OpenMP
constructs. Currently, it checks for use of the uninitialized variables
in the structured blocks.


Repository:
  rC Clang

https://reviews.llvm.org/D64356

Files:
  include/clang/AST/StmtOpenMP.h
  lib/AST/StmtOpenMP.cpp
  lib/Analysis/CFG.cpp
  lib/Analysis/UninitializedValues.cpp
  test/OpenMP/atomic_messages.c
  test/OpenMP/critical_messages.cpp
  test/OpenMP/distribute_parallel_for_messages.cpp
  test/OpenMP/distribute_parallel_for_simd_misc_messages.c
  test/OpenMP/distribute_simd_misc_messages.c
  test/OpenMP/for_misc_messages.c
  test/OpenMP/for_simd_misc_messages.c
  test/OpenMP/master_messages.cpp
  test/OpenMP/ordered_messages.cpp
  test/OpenMP/parallel_for_messages.cpp
  test/OpenMP/parallel_for_simd_messages.cpp
  test/OpenMP/parallel_messages.cpp
  test/OpenMP/parallel_sections_messages.cpp
  test/OpenMP/sections_misc_messages.c
  test/OpenMP/simd_misc_messages.c
  test/OpenMP/single_misc_messages.c
  test/OpenMP/target_depend_messages.cpp
  test/OpenMP/target_parallel_for_messages.cpp
  test/OpenMP/target_parallel_for_simd_messages.cpp
  test/OpenMP/target_parallel_messages.cpp
  test/OpenMP/target_simd_messages.cpp
  test/OpenMP/target_teams_distribute_messages.cpp
  test/OpenMP/target_teams_distribute_parallel_for_messages.cpp
  test/OpenMP/target_teams_distribute_parallel_for_simd_messages.cpp
  test/OpenMP/target_teams_distribute_simd_messages.cpp
  test/OpenMP/target_teams_messages.cpp
  test/OpenMP/target_update_messages.cpp
  test/OpenMP/task_messages.cpp
  test/OpenMP/taskgroup_messages.cpp
  test/OpenMP/taskloop_misc_messages.c
  test/OpenMP/taskloop_simd_misc_messages.c
  test/OpenMP/teams_distribute_parallel_for_messages.cpp
  test/OpenMP/teams_distribute_parallel_for_simd_messages.cpp
  test/OpenMP/teams_distribute_simd_messages.cpp
  test/OpenMP/teams_messages.cpp

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