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13 Commits

Author SHA1 Message Date
Aiden Grossman
b7b501e54c Reapply "[clang] Remove %T from tests (#151614)" 
This reverts commit 4c80193a58a5c24e2bbebe291feb406191c4e2ab.

This relands the commit. The issues have theoretically been fixed.
 2025-08-02 20:08:53 +00:00
Aiden Grossman
4c80193a58 Revert "[clang] Remove %T from tests (#151614)" 
This reverts commit 5a586375aa3a128dadc9473cfa196bf8588c2a82.

This breaks two buildbots with failures in
implicit-module-header-maps.cpp. No idea why these failures are
occurring.

https://lab.llvm.org/buildbot/#/builders/64/builds/5166
https://lab.llvm.org/buildbot/#/builders/13/builds/8725
 2025-08-01 17:30:24 +00:00
Aiden Grossman
5a586375aa
[clang] Remove %T from tests (#151614) 
This patch removes %T from clang lit tests. %T has been deprecated for
about seven years and is not reccomended as it is not unique to each
test, which can lead to races. This patch is intended to remove usage in
tree with the end goal of removing support for %T within lit.
 2025-08-01 08:25:14 -07:00
Yaxun (Sam) Liu
19d3b37196 Partially revert changes to test lang-std.cpp 
Recover the checking for the default language standard for C++.

Reviewed by: Douglas Yung, Paul Robinson
 2023-07-25 09:32:29 -04:00
Yaxun (Sam) Liu
8ef04488d1 Reland "[CUDA][HIP] Use the same default language std as C++"" 
Reland after fixing regression in lldb.

Differential Revision: https://reviews.llvm.org/D155539
 2023-07-20 12:02:33 -04:00
Sylvestre Ledru
443f490b6a Revert "[CUDA][HIP] Use the same default language std as C++" 
This reverts commit 2d1d07152bd26b001dedec3400b4b01d3bb11622.
 2023-07-20 10:54:54 +02:00
Yaxun (Sam) Liu
2d1d07152b [CUDA][HIP] Use the same default language std as C++ 
Currently CUDA/HIP defines their own language standards in
LanguageStandards.def but they are redundant. They are the same as stdc++14.
The fact that CUDA/HIP uses c++* in option -std= indicates that they have the
same language standards as C++. The CUDA/HIP specific language features are
conveyed through language options, not language standards features. It makes
sense to let CUDA/HIP uses the same default language standard as C++.

Reviewed by: Siu Chi Chan, Artem Belevich

Differential Revision: https://reviews.llvm.org/D155539

Fixes: SWDEV-407685
 2023-07-19 23:54:58 -04:00
Paul Robinson
aa149687dc [PS4/PS5] Canonicalize tests to use 'target=.*-(ps4|ps5)' 
This allows grepping for ps4 or ps5 to continue to work.
 2022-12-01 07:21:07 -08:00
Paul Robinson
dee009d3b5 [lit] UNSUPPORTED ps4/ps5 => target={{.*-ps(4|5)}} 
Part of the project to eliminate special handling for triples in lit expressions.
 2022-11-29 09:07:59 -08:00
Fangrui Song
3baadff896 [CMake] Remove CLANG_DEFAULT_STD_C/CLANG_DEFAULT_STD_CXX 
When Clang is used as a cross compiler, it should respect the target
platform default. Defaulting to a configure-time CLANG_DEFAULT_STD_C/CLANG_DEFAULT_STD_CXX
does not make much sense.

When Clang is used as a single-platform compiler, we should use Clang
configuration file (https://discourse.llvm.org/t/configuration-files/42529
https://clang.llvm.org/docs/UsersManual.html#configuration-files).

The Gentoo needs from D34365 has been satisfied by a configuration file.

Reviewed By: mgorny

Differential Revision: https://reviews.llvm.org/D133375
 2022-10-16 13:15:44 -07:00
Fangrui Song
3e99b8d947 C++/ObjC++: switch to gnu++17 as the default standard 
Clang's default C++ standard is now `gnu++17` instead of `gnu++14`:
https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-standard/64360

* CUDA/HIP are unchanged: C++14 from D103221.
* Sony PS4/PS5 are unchanged: https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-standard/64360/6
* lit feature `default-std-cxx` is added to keep CLANG_DEFAULT_STD_CXX=xxx tests working.
  Whether the cmake variable should be retained is disccused in D133375.

Depends on D131464

Reviewed By: #clang-language-wg, aaron.ballman

Differential Revision: https://reviews.llvm.org/D131465
 2022-09-08 08:22:04 +00:00
Nikita Popov
fd2475049e Revert "C++/ObjC++: switch to gnu++17 as the default standard" 
This reverts commit e321c8dd2cea8365045ed44ae1c3c00c6a977d2e.

This causes many failures in llvm-test-suite, for example:

    /home/npopov/repos/llvm-test-suite/build-O3/tools/timeit --summary MultiSource/Applications/lambda-0.1.3/CMakeFiles/lambda.dir/token_stream.cc.o.time /home/npopov/repos/llvm-project/build/bin/clang++ -DNDEBUG -I/home/npopov/repos/llvm-test-suite/MultiSource/Applications/lambda-0.1.3 -O3   -w -Werror=date-time -MD -MT MultiSource/Applications/lambda-0.1.3/CMakeFiles/lambda.dir/token_stream.cc.o -MF MultiSource/Applications/lambda-0.1.3/CMakeFiles/lambda.dir/token_stream.cc.o.d -o MultiSource/Applications/lambda-0.1.3/CMakeFiles/lambda.dir/token_stream.cc.o -c /home/npopov/repos/llvm-test-suite/MultiSource/Applications/lambda-0.1.3/token_stream.cc
    /home/npopov/repos/llvm-test-suite/MultiSource/Applications/lambda-0.1.3/token_stream.cc:192:2: error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
            register char chr;
            ^~~~~~~~~
 2022-09-08 09:45:50 +02:00
Fangrui Song
e321c8dd2c C++/ObjC++: switch to gnu++17 as the default standard 
Clang's default C++ standard is now `gnu++17` instead of `gnu++14`:
https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-dialect/64360

* CUDA/HIP are unchanged: C++14 from D103221.
* Sony PS4/PS5 are unchanged: https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-dialect/64360/6
* lit feature `default-std-cxx` is added to keep CLANG_DEFAULT_STD_CXX=xxx tests working.
  Whether the cmake variable should be retained is disccused in D133375.

Depends on D131464

Close https://github.com/llvm/llvm-project/issues/56946

Reviewed By: #clang-language-wg, aaron.ballman

Differential Revision: https://reviews.llvm.org/D131465
 2022-09-07 14:17:52 -07:00