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| author | Tobias Burnus <tobias@codesourcery.com> | 2023-11-24 15:31:08 +0100 |
|---|---|---|
| committer | Tobias Burnus <tobias@codesourcery.com> | 2023-11-24 15:31:08 +0100 |
| commit | 449b6b817ed76173e6475debd02b195ea9dab0a0 (patch) | |
| tree | fb600916fe66e127887ae99bcfb4cc34bd868bd5 /gcc/doc | |
| parent | 439779bacee869643c93a4710a29f89ad031ee4a (diff) | |
| download | gcc-449b6b817ed76173e6475debd02b195ea9dab0a0.zip gcc-449b6b817ed76173e6475debd02b195ea9dab0a0.tar.gz gcc-449b6b817ed76173e6475debd02b195ea9dab0a0.tar.bz2 | |
OpenMP: Add -Wopenmp and use it
The new warning has two purposes: First, it makes clearer to the
user that it is about OpenMP and, secondly and more importantly,
it permits to use -Wno-openmp.
The newly added -Wopenmp is enabled by default and replaces the
'0' (always warning) in several OpenMP-related warning calls.
For code shared with OpenACC, it only uses OPT_Wopenmp for
'flag_openmp | flag_openmp_simd'.
gcc/c-family/ChangeLog:
* c.opt (Wopenmp): Add, enable by default.
gcc/c/ChangeLog:
* c-parser.cc (c_parser_omp_clause_num_threads,
c_parser_omp_clause_num_tasks, c_parser_omp_clause_grainsize,
c_parser_omp_clause_priority, c_parser_omp_clause_schedule,
c_parser_omp_clause_num_teams, c_parser_omp_clause_thread_limit,
c_parser_omp_clause_dist_schedule, c_parser_omp_depobj,
c_parser_omp_scan_loop_body, c_parser_omp_assumption_clauses):
Add OPT_Wopenmp to warning_at.
gcc/cp/ChangeLog:
* parser.cc (cp_parser_omp_clause_dist_schedule,
cp_parser_omp_scan_loop_body, cp_parser_omp_assumption_clauses,
cp_parser_omp_depobj): Add OPT_Wopenmp to warning_at.
* semantics.cc (finish_omp_clauses): Likewise.
gcc/ChangeLog:
* doc/invoke.texi (-Wopenmp): Add.
* gimplify.cc (gimplify_omp_for): Add OPT_Wopenmp to warning_at.
* omp-expand.cc (expand_omp_ordered_sink): Likewise.
* omp-general.cc (omp_check_context_selector): Likewise.
* omp-low.cc (scan_omp_for, check_omp_nesting_restrictions,
lower_omp_ordered_clauses): Likewise.
* omp-simd-clone.cc (simd_clone_clauses_extract): Likewise.
gcc/fortran/ChangeLog:
* lang.opt (Wopenmp): Add, enabled by dafault and documented in C.
* openmp.cc (gfc_match_omp_declare_target, resolve_positive_int_expr,
resolve_nonnegative_int_expr, resolve_omp_clauses,
gfc_resolve_omp_do_blocks): Use OPT_Wopenmp with gfc_warning{,_now}.
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 7801f80..23e2b74 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -383,7 +383,7 @@ Objective-C and Objective-C++ Dialects}. -Wnormalized=@r{[}none@r{|}id@r{|}nfc@r{|}nfkc@r{]} -Wnull-dereference -Wno-odr -Wopenacc-parallelism --Wopenmp-simd +-Wopenmp -Wopenmp-simd -Wno-overflow -Woverlength-strings -Wno-override-init-side-effects -Wpacked -Wno-packed-bitfield-compat -Wpacked-not-aligned -Wpadded -Wparentheses -Wno-pedantic-ms-format @@ -9957,6 +9957,11 @@ Enabled by default. @item -Wopenacc-parallelism Warn about potentially suboptimal choices related to OpenACC parallelism. +@opindex Wopenmp +@opindex Wno-openmp +@item -Wno-openmp +Warn about suspicious OpenMP code. + @opindex Wopenmp-simd @opindex Wno-openmp-simd @item -Wopenmp-simd |