[llvm] Add a pass to collect dropped var stats for MIR. (PR #115566)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Mon Nov 18 19:46:21 PST 2024


llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-bootstrap-ubsan` running on `sanitizer-buildbot4` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/25/builds/4233

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

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
[871/1322] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/YAML2ObjTest.cpp.o
[872/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ArrayRecyclerTest.cpp.o
[873/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/ArchiveTest.cpp.o
[874/1322] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/BPFunctionNodeTest.cpp.o
[875/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/IRBuilderTest.cpp.o
[876/1322] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/TokenAnnotatorTest.cpp.o
[877/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/GOFFObjectFileTest.cpp.o
[878/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AlignOfTest.cpp.o
[879/1322] Building CXX object unittests/SandboxIR/CMakeFiles/SandboxIRTests.dir/IntrinsicInstTest.cpp.o
[880/1322] Building CXX object unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o
FAILED: unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build_ubsan/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build_ubsan/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googletest/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googlemock/include -nostdinc++ -isystem /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/include -isystem /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/include/c++/v1 -fsanitize=undefined -Wl,--rpath=/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/lib -L/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/lib -w -stdlib=libc++ -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all -fsanitize-blacklist=/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/sanitizers/ubsan_ignorelist.txt -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -MD -MT unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -MF unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o.d -o unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -c /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:35:17: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   35 | std::unique_ptr<LLVMTargetMachine>
      |                 ^~~~~~~~~~~~~~~~~
      |                 TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:42:26: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   42 |   return std::unique_ptr<LLVMTargetMachine>(
      |                          ^~~~~~~~~~~~~~~~~
      |                          TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:43:19: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   43 |       static_cast<LLVMTargetMachine *>(T->createTargetMachine(
      |                   ^~~~~~~~~~~~~~~~~
      |                   TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
3 errors generated.
[881/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ConvertEBCDICTest.cpp.o
[882/1322] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/BitstreamRemarksParsingTest.cpp.o
[883/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/VPIntrinsicTest.cpp.o
[884/1322] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/ItaniumManglingCanonicalizerTest.cpp.o
[885/1322] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/BitstreamRemarksSerializerTest.cpp.o
[886/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AllocatorTest.cpp.o
[887/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/BlockFrequencyTest.cpp.o
[888/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/ELFTypesTest.cpp.o
[889/1322] Building CXX object unittests/DebugInfo/DWARF/CMakeFiles/DebugInfoDWARFTests.dir/DWARFDebugLineTest.cpp.o
[890/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CheckedArithmeticTest.cpp.o
[891/1322] Building CXX object unittests/DebugInfo/DWARF/CMakeFiles/DebugInfoDWARFTests.dir/DWARFDebugInfoTest.cpp.o
[892/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/BranchProbabilityTest.cpp.o
[893/1322] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/FormatTest.cpp.o
[894/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/DebugInfoTest.cpp.o
[895/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AlignmentTest.cpp.o
Step 10 (stage2/ubsan check) failure: stage2/ubsan check (failure)
...
[871/1322] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/YAML2ObjTest.cpp.o
[872/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ArrayRecyclerTest.cpp.o
[873/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/ArchiveTest.cpp.o
[874/1322] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/BPFunctionNodeTest.cpp.o
[875/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/IRBuilderTest.cpp.o
[876/1322] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/TokenAnnotatorTest.cpp.o
[877/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/GOFFObjectFileTest.cpp.o
[878/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AlignOfTest.cpp.o
[879/1322] Building CXX object unittests/SandboxIR/CMakeFiles/SandboxIRTests.dir/IntrinsicInstTest.cpp.o
[880/1322] Building CXX object unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o
FAILED: unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build_ubsan/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build_ubsan/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googletest/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googlemock/include -nostdinc++ -isystem /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/include -isystem /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/include/c++/v1 -fsanitize=undefined -Wl,--rpath=/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/lib -L/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_install_ubsan/lib -w -stdlib=libc++ -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -gline-tables-only -fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all -fsanitize-blacklist=/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/sanitizers/ubsan_ignorelist.txt -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -MD -MT unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -MF unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o.d -o unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -c /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:35:17: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   35 | std::unique_ptr<LLVMTargetMachine>
      |                 ^~~~~~~~~~~~~~~~~
      |                 TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:42:26: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   42 |   return std::unique_ptr<LLVMTargetMachine>(
      |                          ^~~~~~~~~~~~~~~~~
      |                          TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:43:19: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   43 |       static_cast<LLVMTargetMachine *>(T->createTargetMachine(
      |                   ^~~~~~~~~~~~~~~~~
      |                   TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
3 errors generated.
[881/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ConvertEBCDICTest.cpp.o
[882/1322] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/BitstreamRemarksParsingTest.cpp.o
[883/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/VPIntrinsicTest.cpp.o
[884/1322] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/ItaniumManglingCanonicalizerTest.cpp.o
[885/1322] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/BitstreamRemarksSerializerTest.cpp.o
[886/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AllocatorTest.cpp.o
[887/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/BlockFrequencyTest.cpp.o
[888/1322] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/ELFTypesTest.cpp.o
[889/1322] Building CXX object unittests/DebugInfo/DWARF/CMakeFiles/DebugInfoDWARFTests.dir/DWARFDebugLineTest.cpp.o
[890/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CheckedArithmeticTest.cpp.o
[891/1322] Building CXX object unittests/DebugInfo/DWARF/CMakeFiles/DebugInfoDWARFTests.dir/DWARFDebugInfoTest.cpp.o
[892/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/BranchProbabilityTest.cpp.o
[893/1322] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/FormatTest.cpp.o
[894/1322] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/DebugInfoTest.cpp.o
[895/1322] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AlignmentTest.cpp.o
Step 13 (stage3/ubsan check) failure: stage3/ubsan check (failure)
...
[804/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/DebugCounterTest.cpp.o
[805/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CheckedArithmeticTest.cpp.o
[806/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ErrnoTest.cpp.o
[807/1187] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/GOFFObjectFileTest.cpp.o
[808/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/DJBTest.cpp.o
[809/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CrashRecoveryTest.cpp.o
[810/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CachePruningTest.cpp.o
[811/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/CSKYAttributeParserTest.cpp.o
[812/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/DivisionByConstantTest.cpp.o
[813/1187] Building CXX object unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o
FAILED: unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o 
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build_ubsan/bin/clang++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build2_ubsan/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googletest/include -I/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/third-party/unittest/googlemock/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -MD -MT unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -MF unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o.d -o unittests/MIR/CMakeFiles/MIRTests.dir/DroppedVariableStatsMIRTest.cpp.o -c /home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:35:17: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   35 | std::unique_ptr<LLVMTargetMachine>
      |                 ^~~~~~~~~~~~~~~~~
      |                 TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:42:26: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   42 |   return std::unique_ptr<LLVMTargetMachine>(
      |                          ^~~~~~~~~~~~~~~~~
      |                          TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/unittests/MIR/DroppedVariableStatsMIRTest.cpp:43:19: error: unknown type name 'LLVMTargetMachine'; did you mean 'TargetMachine'?
   43 |       static_cast<LLVMTargetMachine *>(T->createTargetMachine(
      |                   ^~~~~~~~~~~~~~~~~
      |                   TargetMachine
/home/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include/llvm/Target/TargetMachine.h:77:7: note: 'TargetMachine' declared here
   77 | class TargetMachine {
      |       ^
3 errors generated.
[814/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ELFAttributeParserTest.cpp.o
[815/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ARMAttributeParser.cpp.o
[816/1187] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/BPFunctionNodeTest.cpp.o
[817/1187] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/YAMLRemarksParsingTest.cpp.o
[818/1187] Building CXX object unittests/FileCheck/CMakeFiles/FileCheckTests.dir/FileCheckTest.cpp.o
[819/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/EndianStreamTest.cpp.o
[820/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/EndianTest.cpp.o
[821/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ExtensibleRTTITest.cpp.o
[822/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ErrorOrTest.cpp.o
[823/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/AddressRangeTest.cpp.o
[824/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/Base64Test.cpp.o
[825/1187] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/MinidumpYAMLTest.cpp.o
[826/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/ExponentialBackoffTest.cpp.o
[827/1187] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/Casting.cpp.o
[828/1187] Building CXX object unittests/SandboxIR/CMakeFiles/SandboxIRTests.dir/IntrinsicInstTest.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/115566


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