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

Mon Mar 30 13:58:27 PDT 2026

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 `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/144/builds/50468

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
5.355 [2434/40/2611] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ObjCARCAliasAnalysis.cpp.o
5.356 [2433/40/2612] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopPass.cpp.o
5.358 [2432/40/2613] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopNestAnalysis.cpp.o
5.359 [2431/40/2614] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopCacheAnalysis.cpp.o
5.363 [2430/40/2615] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryLocation.cpp.o
5.364 [2429/40/2616] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/LoopInfo.cpp.o
5.365 [2428/40/2617] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ModuleDebugInfoPrinter.cpp.o
5.365 [2427/40/2618] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ObjCARCInstKind.cpp.o
5.374 [2426/40/2619] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryBuiltins.cpp.o
5.374 [2425/40/2620] Building CXX object lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o
FAILED: lib/ABI/CMakeFiles/LLVMABI.dir/FunctionInfo.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes CCACHE_SLOPPINESS=pch_defines,time_macros /usr/bin/ccache /usr/bin/g++ -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/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/lib/ABI -I/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/lib/ABI -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-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 -UNDEBUG -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/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/lib/ABI/FunctionInfo.cpp
In file included from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/lib/ABI/FunctionInfo.cpp:9:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/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/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include/llvm/ABI/Types.h:21,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include/llvm/ABI/FunctionInfo.h:17,
                 from /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/lib/ABI/FunctionInfo.cpp:9:
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/include/llvm/Support/Alignment.h:39:8: note: ‘Align’ declared here as ‘struct llvm::Align’
   39 | struct Align {
      |        ^~~~~
5.375 [2425/39/2621] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryProfileInfo.cpp.o
5.375 [2425/38/2622] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ObjCARCAnalysisUtils.cpp.o
5.380 [2425/37/2623] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MustExecute.cpp.o
5.381 [2425/36/2624] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemoryDependenceAnalysis.cpp.o
5.381 [2425/35/2625] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemorySSA.cpp.o
5.382 [2425/34/2626] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/OverflowInstAnalysis.cpp.o
5.386 [2425/33/2627] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ModuleSummaryAnalysis.cpp.o
5.387 [2425/32/2628] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/PostDominators.cpp.o
5.387 [2425/31/2629] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/PHITransAddr.cpp.o
5.388 [2425/30/2630] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MemorySSAUpdater.cpp.o
5.391 [2425/29/2631] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/MLInlineAdvisor.cpp.o
5.392 [2425/28/2632] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/OptimizationRemarkEmitter.cpp.o
5.392 [2425/27/2633] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/PtrUseVisitor.cpp.o
5.392 [2425/26/2634] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/TFLiteUtils.cpp.o
5.395 [2425/25/2635] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ProfileSummaryInfo.cpp.o
5.396 [2425/24/2636] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/PhiValues.cpp.o
5.396 [2425/23/2637] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/RuntimeLibcallInfo.cpp.o
5.397 [2425/22/2638] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/RegionPrinter.cpp.o
5.398 [2425/21/2639] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolutionNormalization.cpp.o
5.399 [2425/20/2640] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/RegionPass.cpp.o
5.400 [2425/19/2641] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolutionAliasAnalysis.cpp.o
5.401 [2425/18/2642] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/StructuralHash.cpp.o
5.401 [2425/17/2643] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolutionDivision.cpp.o
5.401 [2425/16/2644] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ReplayInlineAdvisor.cpp.o
5.402 [2425/15/2645] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/RegionInfo.cpp.o
5.402 [2425/14/2646] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/StaticDataProfileInfo.cpp.o
5.403 [2425/13/2647] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/StackLifetime.cpp.o

```

</details>

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