[llvm] Remove dependence on <ciso646> (PR #73273)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Sat Feb 8 18:51:07 PST 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clangd-ubuntu-tsan` running on `clangd-ubuntu-clang` while building `llvm` at step 5 "build-clangd-clangd-index-server-clangd-indexer".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/134/builds/13171

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build-clangd-clangd-index-server-clangd-indexer) failure: build (failure)
...
0.364 [4614/18/146] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Valgrind.cpp.o
0.367 [4613/18/147] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Watchdog.cpp.o
0.383 [4612/18/148] Building C object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3.c.o
0.398 [4611/18/149] Building C object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_dispatch.c.o
0.413 [4610/18/150] Building C object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_portable.c.o
0.429 [4609/18/151] Building C object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_neon.c.o
0.567 [4608/18/152] Building ASM object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_sse2_x86-64_unix.S.o
0.805 [4607/18/153] Building ASM object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_sse41_x86-64_unix.S.o
1.057 [4606/18/154] Building ASM object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_avx2_x86-64_unix.S.o
1.327 [4605/18/155] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ManagedStatic.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/ManagedStatic.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -Werror=global-constructors -O3 -DNDEBUG -UNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/ManagedStatic.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/ManagedStatic.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/ManagedStatic.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/ManagedStatic.cpp
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/ManagedStatic.cpp:15:
/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/Threading.h:22:10: fatal error: 'version' file not found
   22 | #include <version>
      |          ^~~~~~~~~
1 error generated.
1.328 [4605/17/156] Building ASM object lib/Support/BLAKE3/CMakeFiles/LLVMSupportBlake3.dir/blake3_avx512_x86-64_unix.S.o
1.482 [4605/16/157] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -Werror=global-constructors -O3 -DNDEBUG -UNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/PluginLoader.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/PluginLoader.cpp
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/PluginLoader.cpp:16:
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/Mutex.h:16:
/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/Threading.h:22:10: fatal error: 'version' file not found
   22 | #include <version>
      |          ^~~~~~~~~
1 error generated.
1.733 [4605/15/158] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ThreadPool.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/ThreadPool.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -Werror=global-constructors -O3 -DNDEBUG -UNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/ThreadPool.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/ThreadPool.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/ThreadPool.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/ThreadPool.cpp
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/ThreadPool.cpp:13:
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/ThreadPool.h:18:
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/RWMutex.h:17:
/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/Threading.h:22:10: fatal error: 'version' file not found
   22 | #include <version>
      |          ^~~~~~~~~
1 error generated.
1.745 [4605/14/159] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RWMutex.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/RWMutex.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -Werror=global-constructors -O3 -DNDEBUG -UNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/RWMutex.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/RWMutex.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/RWMutex.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/RWMutex.cpp
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/RWMutex.cpp:13:
In file included from /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/RWMutex.h:17:
/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include/llvm/Support/Threading.h:22:10: fatal error: 'version' file not found
   22 | #include <version>
      |          ^~~~~~~~~
1 error generated.
1.754 [4605/13/160] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o 
ccache /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/build/include -I/vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=thread -fdiagnostics-color -ffunction-sections -fdata-sections -Werror=global-constructors -O3 -DNDEBUG -UNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o -c /vol/worker/clangd-ubuntu-clang/clangd-ubuntu-tsan/llvm-project/llvm/lib/Support/DynamicLibrary.cpp

```

</details>

https://github.com/llvm/llvm-project/pull/73273

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