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user interface and documentation, and update __cplusplus for C++20.
WG21 considers the C++20 standard to be finished (even though it still
has some more steps to pass through in the ISO process).
The old flag names are accepted for compatibility, as usual, and we
still have lots of references to C++2a in comments and identifiers;
those can be cleaned up separately.
(cherry picked from commit 24ad121582454e625bdad125c90d9ac0dae948c8)
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unexpected error messages for incompatibility between the
default SM level and the support in the installed toolkit.
Differential Revision: https://reviews.llvm.org/D40996
llvm-svn: 320506
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As suggested on PR33912.
Trying to keep this small to make it easy to merge to the 5.0 branch. We
can do a follow-up with more thorough renaming (diagnostic text,
options, ids, etc.) later.
(For C++14 this was done in r215982, and I think a smaller patch for the
3.5 branch:
http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20140818/113013.html)
Differential Revision: https://reviews.llvm.org/D36532
llvm-svn: 310516
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C++2a features
- as usual C++2a implies all the C++'s that came before it.
Thank you Aaron for the feedback here: https://reviews.llvm.org/D35454
llvm-svn: 308118
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Don't list deprecated -std= values (c++0x etc). Only produce one line of output
per standard, even if we know it by multiple names.
In passing, add missing -std=gnu++03 alias (supported by GCC), and add new
spelling '-std=cl1.0' for OpenCL 1.0 for consistency with the other values,
with the same meaning as the preexisting '-std=cl'.
llvm-svn: 301507
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We already prohibited this in most cases (in r130710), but had some bugs in our
enforcement of this rule. Specifically, this prevents the following
combinations:
* -x c -std=clN.M, which would previously effectively act as if -x cl were
used, despite the input being a C source file. (-x cl -std=cNN continues
to be disallowed.)
* -x c++ -std=cuda, which would previously select C++98 + CUDA, despite that
not being a C++ standard. (-x cuda -std=c++NN is still permitted, and
selects CUDA with the given C++ standard as its base language.
-x cuda -std=cuda is still supported with the meaning of CUDA + C++98.)
* -x renderscript -std=c++NN, which would previously form a hybrid "C++ with
RenderScript extensions" language. We could support such a thing, but
shouldn't do so by accident.
llvm-svn: 301497
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In case user did not provide valid standard name for -std option, available
values (with short description) will be reported.
Patch by Paweł Żukowski!
llvm-svn: 295113
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