5 Commits

Author SHA1 Message Date
Aaron Ballman
85c810060e
[C] Diagnose use of C++ keywords in C (#137234)
This adds a new diagnostic group, -Wc++-keyword, which is off by default
and grouped under -Wc++-compat. The diagnostic catches use of C++
keywords in C code.

This change additionally fixes an issue with -Wreserved-identifier not
diagnosing use of reserved identifiers in function parameter lists in a
function declaration which is not a definition.

Fixes https://github.com/llvm/llvm-project/issues/21898
2025-05-02 07:20:02 -04:00
David Pagan
a5fc7c3ac1
[clang][OpenMP] New OpenMP 6.0 assumption clause, 'no_openmp_constructs' (#125933)
Add initial parsing/sema support for new assumption clause so clause can
be specified. For now, it's ignored, just like the others.

Added support for 'no_openmp_construct' to release notes.

Testing
- Updated appropriate LIT tests.
- Testing: check-all
2025-02-06 12:41:10 -08:00
Johannes Doerfert
2e6e4e6aee [OpenMP] Add initial support for omp [begin/end] assumes
The `assumes` directive is an OpenMP 5.1 feature that allows the user to
provide assumptions to the optimizer. Assumptions can refer to
directives (`absent` and `contains` clauses), expressions (`holds`
clause), or generic properties (`no_openmp_routines`, `ext_ABCD`, ...).

The `assumes` spelling is used for assumptions in the global scope while
`assume` is used for executable contexts with an associated structured
block.

This patch only implements the global spellings. While clauses with
arguments are "accepted" by the parser, they will simply be ignored for
now. The implementation lowers the assumptions directly to the
`AssumptionAttr`.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D91980
2020-12-16 20:02:49 -06:00
Johannes Doerfert
1efd7a73ac Revert "[OpenMP] Add initial support for omp [begin/end] assumes"
There is a build error with gcc-5 [0], investigating now.

[0] https://reviews.llvm.org/D91980#2456526

This reverts commit a5a14cbe7f87e01882ecaa14df5d596cbf38823a.
2020-12-15 18:03:10 -06:00
Johannes Doerfert
a5a14cbe7f [OpenMP] Add initial support for omp [begin/end] assumes
The `assumes` directive is an OpenMP 5.1 feature that allows the user to
provide assumptions to the optimizer. Assumptions can refer to
directives (`absent` and `contains` clauses), expressions (`holds`
clause), or generic properties (`no_openmp_routines`, `ext_ABCD`, ...).

The `assumes` spelling is used for assumptions in the global scope while
`assume` is used for executable contexts with an associated structured
block.

This patch only implements the global spellings. While clauses with
arguments are "accepted" by the parser, they will simply be ignored for
now. The implementation lowers the assumptions directly to the
`AssumptionAttr`.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D91980
2020-12-15 16:51:34 -06:00