[clang] [clang-tools-extra] [lldb] [llvm] [clang][modules] Serialize `CodeGenOptions` (PR #146422)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Tue Jul 15 12:48:29 PDT 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-ubuntu-fast` running on `sie-linux-worker` while building `clang-tools-extra,clang,lldb,llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/144/builds/30362

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
0.159 [1590/10/63] Building DiagnosticRefactoringKinds.inc...
0.160 [1590/9/64] Building DiagnosticSemaEnums.inc...
0.160 [1590/8/65] Building DiagnosticAllCompatIDs.inc...
0.161 [1590/7/66] Building DiagnosticSerializationInterface.inc...
0.169 [1590/6/67] Building DiagnosticGroups.inc...
0.179 [1560/5/68] Building DiagnosticSerializationEnums.inc...
0.179 [1560/4/69] Building DiagnosticSemaKinds.inc...
0.203 [1523/40/70] Building Opcodes.inc...
0.401 [1522/40/71] Generating VCSVersion.inc
4.015 [1521/40/72] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Attributes.cpp.o
FAILED: tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Attributes.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/g++ -DCLANG_EXPORTS -DEXPERIMENTAL_KEY_INSTRUCTIONS -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/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/lib/Basic -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Basic -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Attributes.cpp.o -MF tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Attributes.cpp.o.d -o tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Attributes.cpp.o -c /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Basic/Attributes.cpp
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/TargetInfo.h:21,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Basic/Attributes.cpp:19:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/CodeGenOptions.h:60:9: error: declaration of ‘using CFBranchLabelSchemeKind = enum class clang::CFBranchLabelSchemeKind’ changes meaning of ‘CFBranchLabelSchemeKind’ [-fpermissive]
   60 |   using CFBranchLabelSchemeKind = CFBranchLabelSchemeKind;
      |         ^~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/LangOptions.h:17,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Basic/Attributes.cpp:16:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/CFProtectionOptions.h:20:12: note: ‘CFBranchLabelSchemeKind’ declared here as ‘enum class clang::CFBranchLabelSchemeKind’
   20 | enum class CFBranchLabelSchemeKind {
      |            ^~~~~~~~~~~~~~~~~~~~~~~
4.329 [1521/39/73] Building CXX object tools/clang/lib/Driver/CMakeFiles/obj.clangDriver.dir/Compilation.cpp.o
4.367 [1521/38/74] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/DependencyDirectivesScanner.cpp.o
5.167 [1521/37/75] Building CXX object tools/clang/lib/Format/CMakeFiles/obj.clangFormat.dir/DefinitionBlockSeparator.cpp.o
5.362 [1521/36/76] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/IRSymtab.cpp.o
5.595 [1521/35/77] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/InitHeaderSearch.cpp.o
5.644 [1521/34/78] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/LiteralSupport.cpp.o
FAILED: tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/LiteralSupport.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/g++ -DCLANG_EXPORTS -DEXPERIMENTAL_KEY_INSTRUCTIONS -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/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/lib/Lex -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/LiteralSupport.cpp.o -MF tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/LiteralSupport.cpp.o.d -o tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/LiteralSupport.cpp.o -c /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex/LiteralSupport.cpp
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/TargetInfo.h:21,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex/LiteralSupport.cpp:18:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/CodeGenOptions.h:60:9: error: declaration of ‘using CFBranchLabelSchemeKind = enum class clang::CFBranchLabelSchemeKind’ changes meaning of ‘CFBranchLabelSchemeKind’ [-fpermissive]
   60 |   using CFBranchLabelSchemeKind = CFBranchLabelSchemeKind;
      |         ^~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/LangOptions.h:17,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex/LiteralSupport.cpp:16:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/CFProtectionOptions.h:20:12: note: ‘CFBranchLabelSchemeKind’ declared here as ‘enum class clang::CFBranchLabelSchemeKind’
   20 | enum class CFBranchLabelSchemeKind {
      |            ^~~~~~~~~~~~~~~~~~~~~~~
5.691 [1521/33/79] Building CXX object tools/clang/lib/APINotes/CMakeFiles/obj.clangAPINotes.dir/APINotesManager.cpp.o
5.761 [1521/32/80] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/MacroArgs.cpp.o
6.271 [1521/31/81] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/MacroInfo.cpp.o
6.402 [1521/30/82] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/ModuleMap.cpp.o
FAILED: tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/ModuleMap.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/g++ -DCLANG_EXPORTS -DEXPERIMENTAL_KEY_INSTRUCTIONS -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/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/lib/Lex -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/tools/clang/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++17 -MD -MT tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/ModuleMap.cpp.o -MF tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/ModuleMap.cpp.o.d -o tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/ModuleMap.cpp.o -c /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex/ModuleMap.cpp
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/TargetInfo.h:21,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/lib/Lex/ModuleMap.cpp:23:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/clang/include/clang/Basic/CodeGenOptions.h:60:9: error: declaration of ‘using CFBranchLabelSchemeKind = enum class clang::CFBranchLabelSchemeKind’ changes meaning of ‘CFBranchLabelSchemeKind’ [-fpermissive]

```

</details>

https://github.com/llvm/llvm-project/pull/146422

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