[llvm] [LLVMABI] Create ABI Utils (PR #185105)

Tue Mar 31 21:19:03 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-with-lto-ubuntu` running on `as-worker-91` while building `llvm` at step 6 "build-stage1-compiler".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/49/builds/3481

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

```
Step 6 (build-stage1-compiler) failure: build (failure)
...
31.702 [6291/72/599] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ConstantRange.cpp.o
31.911 [6290/72/600] Building CXX object utils/TableGen/CMakeFiles/llvm-tblgen.dir/DAGISelMatcherEmitter.cpp.o
31.987 [6289/72/601] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/VectorTypeUtils.cpp.o
32.044 [6288/72/602] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ProfileSummary.cpp.o
32.197 [6287/72/603] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/DroppedVariableStats.cpp.o
32.207 [6286/72/604] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangAttrEmitter.cpp.o
32.261 [6285/72/605] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ConvergenceVerifier.cpp.o
32.326 [6284/72/606] Building CXX object utils/TableGen/CMakeFiles/llvm-tblgen.dir/SubtargetEmitter.cpp.o
32.348 [6283/72/607] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/DroppedVariableStatsIR.cpp.o
32.431 [6282/72/608] Building CXX object lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o
FAILED: lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o 
/usr/bin/c++ -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbot/as-worker-91/clang-with-lto-ubuntu/build/stage1/lib/ABI -I/home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/lib/ABI -I/home/buildbot/as-worker-91/clang-with-lto-ubuntu/build/stage1/include -I/home/buildbot/as-worker-91/clang-with-lto-ubuntu/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-array-bounds -Wno-stringop-overread -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -fno-exceptions -funwind-tables -fno-rtti -std=c++17 -MD -MT lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o -MF lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o.d -o lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o -c /home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/lib/ABI/FunctionInfo.cpp
In file included from /home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/lib/ABI/FunctionInfo.cpp:9:
/home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/include/llvm/ABI/FunctionInfo.h:55:11: error: declaration of ‘llvm::Align llvm::abi::ArgInfo::IndirectAttrInfo::Align’ changes meaning of ‘Align’ [-fpermissive]
   55 |     Align Align;
      |           ^~~~~
In file included from /home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/include/llvm/ABI/Types.h:21,
                 from /home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/include/llvm/ABI/FunctionInfo.h:17,
                 from /home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/lib/ABI/FunctionInfo.cpp:9:
/home/buildbot/as-worker-91/clang-with-lto-ubuntu/llvm-project/llvm/include/llvm/Support/Alignment.h:39:8: note: ‘Align’ declared here as ‘struct llvm::Align’
   39 | struct Align {
      |        ^~~~~
32.491 [6282/71/609] Building CXX object lib/ABI/CMakeFiles/LLVMABI.dir/Types.cpp.o
32.594 [6282/70/610] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/PatternMatch.cpp.o
32.635 [6282/69/611] Building CXX object utils/TableGen/CMakeFiles/llvm-tblgen.dir/AsmWriterEmitter.cpp.o
32.649 [6282/68/612] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/Function.cpp.o
32.797 [6282/67/613] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/PrintPasses.cpp.o
32.952 [6282/66/614] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/PassTimingInfo.cpp.o
32.971 [6282/65/615] Building CXX object utils/TableGen/CMakeFiles/llvm-tblgen.dir/InstrInfoEmitter.cpp.o
33.038 [6282/64/616] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ProfDataUtils.cpp.o
33.234 [6282/63/617] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ValueSymbolTable.cpp.o
33.589 [6282/62/618] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/Operator.cpp.o
33.597 [6282/61/619] Building CXX object utils/TableGen/Common/CMakeFiles/obj.LLVMTableGenCommon.dir/CodeGenSchedule.cpp.o
33.714 [6282/60/620] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/DiagnosticInfo.cpp.o
33.715 [6282/59/621] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/IntrinsicInst.cpp.o
33.824 [6282/58/622] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/InlineAsm.cpp.o
33.876 [6282/57/623] Building CXX object lib/FuzzMutate/CMakeFiles/LLVMFuzzerCLI.dir/FuzzerCLI.cpp.o
33.925 [6282/56/624] Building CXX object lib/InterfaceStub/CMakeFiles/LLVMInterfaceStub.dir/IFSStub.cpp.o
34.313 [6282/55/625] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/Globals.cpp.o
34.334 [6282/54/626] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/Intrinsics.cpp.o
34.348 [6282/53/627] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o
34.426 [6282/52/628] Building CXX object unittests/FileCheck/CMakeFiles/FileCheckTests.dir/FileCheckTest.cpp.o
34.436 [6282/51/629] Building CXX object lib/FuzzMutate/CMakeFiles/LLVMFuzzMutate.dir/OpDescriptor.cpp.o
34.454 [6282/50/630] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/ReplaceConstant.cpp.o
34.599 [6282/49/631] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/Statepoint.cpp.o
34.721 [6282/48/632] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/LegacyPassManager.cpp.o
34.814 [6282/47/633] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/PseudoProbe.cpp.o
34.892 [6282/46/634] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/VFABIDemangler.cpp.o
34.908 [6282/45/635] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/RuntimeLibcalls.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/185105