[clang] [clang][CIR][doc] Add auto-generated ClangIR documentation (PR #190354)

Fri Apr 17 00:05:52 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-sparc64-linux` running on `debian-stadler-sparc64` while building `clang` at step 6 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/114/builds/420

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

```
Step 6 (build stage 1) failure: 'ninja' (failure)
...
[2653/4283] Building CXX object lib/Target/Sparc/MCTargetDesc/CMakeFiles/LLVMSparcDesc.dir/SparcMCTargetDesc.cpp.o
[2654/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_aarch32.cpp.o
[2655/4283] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
[2656/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_aarch64.cpp.o
[2657/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_x86.cpp.o
[2658/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_systemz.cpp.o
[2659/4283] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/Library.cpp.o
[2660/4283] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/HeaderFile.cpp.o
[2661/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/aarch32.cpp.o
[2662/4283] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/AssumeModeling.cpp.o
FAILED: [code=1] tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/AssumeModeling.cpp.o 
/usr/bin/c++ -DCLANG_EXPORTS -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/stage1/tools/clang/lib/StaticAnalyzer/Checkers -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/lib/StaticAnalyzer/Checkers -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/stage1/tools/clang/include -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/stage1/include -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/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-maybe-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-dangling-reference -Wno-redundant-move -Wno-pessimizing-move -Wno-array-bounds -Wno-stringop-overread -Wno-dangling-pointer -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 -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/AssumeModeling.cpp.o -MF tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/AssumeModeling.cpp.o.d -o tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/AssumeModeling.cpp.o -c /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/lib/StaticAnalyzer/Checkers/AssumeModeling.cpp
In file included from /usr/include/c++/15/cassert:46,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/Support/Error.h:25,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/BinaryFormat/DXContainer.h:20,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Basic/LangOptions.h:27,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/AST/TypeBase.h:28,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/AST/DeclarationName.h:16,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/AST/DeclBase.h:19,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Analysis/AnalysisDeclContext.h:20,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Analysis/ProgramPoint.h:17,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/StaticAnalyzer/Core/Checker.h:16,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/lib/StaticAnalyzer/Checkers/AssumeModeling.cpp:18:
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Basic/LangOptions.def: In member function ‘void clang::LangOptions::setLayoutCompatibility(clang::LangOptionsBase::LayoutCompatibilityKind)’:
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Basic/LangOptions.h:642:33: internal compiler error: Segmentation fault
  642 |     assert(static_cast<unsigned>(Value) < (1u << Bits));                       \
      |                                 ^
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/clang/include/clang/Basic/LangOptions.def:108:1: note: in expansion of macro ‘ENUM_LANGOPT’
  108 | ENUM_LANGOPT(LayoutCompatibility, LayoutCompatibilityKind, 2,
      | ^~~~~~~~~~~~
0x1299e43 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, void**, diagnostic_t)
	???:0
0x8d4d5f internal_error(char const*, ...)
	???:0
0x12eb907 c_parse_file()
	???:0
0x13453e3 c_common_parse_file()
	???:0
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-15/README.Bugs> for instructions.
[2663/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_x86_64.cpp.o
[2664/4283] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/DiagnosticBuilderWrappers.cpp.o
[2665/4283] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/ThinLTOCodeGenerator.cpp.o
[2666/4283] Building CXX object lib/ProfileData/Coverage/CMakeFiles/LLVMCoverage.dir/CoverageMappingWriter.cpp.o
[2667/4283] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/FileList.cpp.o
[2668/4283] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
[2669/4283] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/DirectoryScanner.cpp.o
[2670/4283] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/ELF_loongarch.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/190354