[clang] [clang][diagtool] Remove dependency on clangDriver from diagtool (PR #190076)

Tue Apr 14 05:54:34 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/402

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

```
Step 6 (build stage 1) failure: 'ninja' (failure)
...
[1091/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LCSSA.cpp.o
[1092/4282] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ValueTracking.cpp.o
[1093/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerSwitch.cpp.o
[1094/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopConstrainer.cpp.o
[1095/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MemoryOpRemark.cpp.o
[1096/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopSimplify.cpp.o
[1097/4282] Building CXX object utils/TableGen/Common/CMakeFiles/obj.LLVMTableGenCommon.dir/CodeGenDAGPatterns.cpp.o
[1098/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopRotationUtils.cpp.o
[1099/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/StripGCRelocates.cpp.o
[1100/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o
FAILED: [code=1] lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o 
/usr/bin/c++ -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/lib/Transforms/Utils -I/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/lib/Transforms/Utils -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 -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o -MF lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o.d -o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o -c /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/lib/Transforms/Utils/RelLookupTableConverter.cpp
In file included from /usr/include/c++/15/bits/stream_iterator.h:37,
                 from /usr/include/c++/15/iterator:67,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/ADT/ADL.h:13,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/ADT/DenseMap.h:17,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/IR/PassManager.h:40,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/include/llvm/Transforms/Utils/RelLookupTableConverter.h:54,
                 from /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/llvm/llvm/lib/Transforms/Utils/RelLookupTableConverter.cpp:14:
/usr/include/c++/15/iosfwd:203:41: error: template argument 1 is invalid
  203 |   typedef basic_filebuf<wchar_t>        wfilebuf;
      |                                         ^~~~~~~~
/usr/include/c++/15/iosfwd:203:41: error: template argument 2 is invalid
/usr/include/c++/15/iosfwd:203:41: error: template argument 3 is invalid
[1101/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MoveAutoInit.cpp.o
[1102/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ProfileVerify.cpp.o
[1103/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SanitizerStats.cpp.o
[1104/4282] Building CXX object utils/TableGen/Common/CMakeFiles/obj.LLVMTableGenCommon.dir/CodeGenRegisters.cpp.o
[1105/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MemoryTaggingSupport.cpp.o
[1106/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerMemIntrinsics.cpp.o
[1107/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ModuleUtils.cpp.o
[1108/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopPeel.cpp.o
[1109/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SizeOpts.cpp.o
[1110/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopVersioning.cpp.o
[1111/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SampleProfileLoaderBaseUtil.cpp.o
[1112/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnrollAndJam.cpp.o
[1113/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnrollRuntime.cpp.o
[1114/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SampleProfileInference.cpp.o
[1115/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnroll.cpp.o
[1116/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/PredicateInfo.cpp.o
[1117/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/StripNonLineTableDebugInfo.cpp.o
[1118/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SSAUpdaterBulk.cpp.o
[1119/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SymbolRewriter.cpp.o
[1120/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SSAUpdater.cpp.o
[1121/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SplitModule.cpp.o
[1122/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/PromoteMemoryToRegister.cpp.o
[1123/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o
[1124/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SplitModuleByCategory.cpp.o
[1125/4282] Building CXX object lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/InlineFunction.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/190076