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Attempt to use a SCEVCouldNotCompute object! with UBSAN #50396

Open Quuxplusone opened 3 years ago

Quuxplusone commented 3 years ago
Bugzilla Link PR51429
Status NEW
Importance P enhancement
Reported by David Goldman (goldman.david0@gmail.com)
Reported on 2021-08-10 07:15:01 -0700
Last modified on 2021-08-19 13:04:58 -0700
Version trunk
Hardware PC All
CC compnerd@compnerd.org, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
Fixed by commit(s)
Attachments
Blocks
Blocked by
See also

UNREACHABLE executed at /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:404!

This is from the buildbot https://lab.llvm.org/buildbot/#/builders/85/builds/6103/steps/10/logs/stdio, crashing on my commit here: https://github.com/llvm/llvm-project/commit/ba06ac8b45ca2ad047131fb9cc9af922cb913ea1 (haven't worked out a simplified repro but that one should work with UBSAN)

FAILED: tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o 
/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang++  -DCLANG_ROUND_TRIP_CC1_ARGS=ON -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Itools/clang/tools/extra/clangd -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang-tools-extra/clangd -Itools/clang/tools/extra/clangd/../clang-tidy -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang/include -Itools/clang/include -Iinclude -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include -nostdinc++ -isystem /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/include -isystem /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/include/c++/v1 -lc++abi -Wl,--rpath=/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/lib -L/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/lib -fsanitize=undefined -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-class-memaccess -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -fno-omit-frame-pointer -gline-tables-only -fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all -fsanitize-blacklist=/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/sanitizers/ubsan_blacklist.txt -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG    -fno-exceptions -fno-rtti -UNDEBUG -std=c++14 -MD -MT tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o -MF tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o.d -o tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o -c /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang-tools-extra/clangd/FindSymbols.cpp
Attempt to use a SCEVCouldNotCompute object!
UNREACHABLE executed at /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:404!
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.  Program arguments: /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang++ -DCLANG_ROUND_TRIP_CC1_ARGS=ON -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Itools/clang/tools/extra/clangd -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang-tools-extra/clangd -Itools/clang/tools/extra/clangd/../clang-tidy -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang/include -Itools/clang/include -Iinclude -I/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/include -nostdinc++ -isystem /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/include -isystem /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/include/c++/v1 -lc++abi -Wl,--rpath=/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/lib -L/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/libcxx_build_ubsan/lib -fsanitize=undefined -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-class-memaccess -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -fno-omit-frame-pointer -gline-tables-only -fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all -fsanitize-blacklist=/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/llvm/utils/sanitizers/ubsan_blacklist.txt -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG -fno-exceptions -fno-rtti -UNDEBUG -std=c++14 -MD -MT tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o -MF tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o.d -o tools/clang/tools/extra/clangd/CMakeFiles/obj.clangDaemon.dir/FindSymbols.cpp.o -c /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm-project/clang-tools-extra/clangd/FindSymbols.cpp
1.  <eof> parser at end of file
2.  Optimizer
 #0 0x0000564eda6278ff PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x0000564eda62573c llvm::sys::CleanupOnSignal(unsigned long) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x384a73c)
 #2 0x0000564eda573568 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007f860ce06730 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12730)
 #4 0x00007f860c6ec7bb raise (/lib/x86_64-linux-gnu/libc.so.6+0x377bb)
 #5 0x00007f860c6d7535 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22535)
 #6 0x0000564eda57c5ea (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x37a15ea)
 #7 0x0000564ed96b5abe llvm::SCEV::getType() const (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x28daabe)
 #8 0x0000564ed96df1d0 llvm::ScalarEvolution::isImpliedViaOperations(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::SCEV const*, llvm::SCEV const*, unsigned int) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x29041d0)
 #9 0x0000564ed96df7c5 llvm::ScalarEvolution::isImpliedCondOperandsHelper(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::SCEV const*, llvm::SCEV const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x29047c5)
#10 0x0000564ed96dffa4 llvm::ScalarEvolution::isImpliedCondBalancedTypes(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::Instruction const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2904fa4)
#11 0x0000564ed96e0515 llvm::ScalarEvolution::isImpliedCond(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::Instruction const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2905515)
#12 0x0000564ed96e09ee llvm::ScalarEvolution::isImpliedCond(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::Value const*, bool, llvm::Instruction const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x29059ee)
#13 0x0000564ed96e0864 llvm::ScalarEvolution::isImpliedCond(llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*, llvm::Value const*, bool, llvm::Instruction const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2905864)
#14 0x0000564ed96e0af4 std::_Function_handler<bool (llvm::CmpInst::Predicate), llvm::ScalarEvolution::isBasicBlockEntryGuardedByCond(llvm::BasicBlock const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*)::'lambda2'(llvm::Value const*, bool)::operator()(llvm::Value const*, bool) const::'lambda'(llvm::CmpInst::Predicate)>::_M_invoke(std::_Any_data const&, llvm::CmpInst::Predicate&&) ScalarEvolution.cpp:0:0
#15 0x0000564ed96b1d74 llvm::ScalarEvolution::isBasicBlockEntryGuardedByCond(llvm::BasicBlock const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*)::'lambda'(std::function<bool (llvm::CmpInst::Predicate)>)::operator()(std::function<bool (llvm::CmpInst::Predicate)>) const ScalarEvolution.cpp:0:0
#16 0x0000564ed96e0c3b llvm::ScalarEvolution::isBasicBlockEntryGuardedByCond(llvm::BasicBlock const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*)::'lambda2'(llvm::Value const*, bool)::operator()(llvm::Value const*, bool) const ScalarEvolution.cpp:0:0
#17 0x0000564ed96e1184 llvm::ScalarEvolution::isBasicBlockEntryGuardedByCond(llvm::BasicBlock const*, llvm::CmpInst::Predicate, llvm::SCEV const*, llvm::SCEV const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2906184)
#18 0x0000564ed9703451 llvm::ScalarEvolution::howManyLessThans(llvm::SCEV const*, llvm::SCEV const*, llvm::Loop const*, bool, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2928451)
#19 0x0000564ed9703b56 llvm::ScalarEvolution::computeExitLimitFromICmp(llvm::Loop const*, llvm::ICmpInst*, bool, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2928b56)
#20 0x0000564ed970421d llvm::ScalarEvolution::computeExitLimitFromCondImpl(llvm::ScalarEvolution::ExitLimitCache&, llvm::Loop const*, llvm::Value*, bool, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x292921d)
#21 0x0000564ed970440b llvm::ScalarEvolution::computeExitLimitFromCondCached(llvm::ScalarEvolution::ExitLimitCache&, llvm::Loop const*, llvm::Value*, bool, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x292940b)
#22 0x0000564ed9704512 llvm::ScalarEvolution::computeExitLimitFromCond(llvm::Loop const*, llvm::Value*, bool, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2929512)
#23 0x0000564ed96d7e89 llvm::ScalarEvolution::computeExitLimit(llvm::Loop const*, llvm::BasicBlock*, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x28fce89)
#24 0x0000564ed96d81fa llvm::ScalarEvolution::computeBackedgeTakenCount(llvm::Loop const*, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x28fd1fa)
#25 0x0000564ed96d89cb llvm::ScalarEvolution::getBackedgeTakenInfo(llvm::Loop const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x28fd9cb)
#26 0x0000564ed96f8a21 llvm::ScalarEvolution::hasLoopInvariantBackedgeTakenCount(llvm::Loop const*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x291da21)
#27 0x0000564eda3b6ab6 (anonymous namespace)::LoopIdiomRecognize::runOnLoop(llvm::Loop*) LoopIdiomRecognize.cpp:0:0
#28 0x0000564eda3b89df llvm::LoopIdiomRecognizePass::run(llvm::Loop&, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>&, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x35dd9df)
#29 0x0000564edb64f40d llvm::detail::PassModel<llvm::Loop, llvm::LoopIdiomRecognizePass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>::run(llvm::Loop&, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>&, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&) crtstuff.c:0:0
#30 0x0000564edb7b5958 llvm::Optional<llvm::PreservedAnalyses> llvm::PassManager<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>::runSinglePass<llvm::Loop, std::unique_ptr<llvm::detail::PassConcept<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>, std::default_delete<llvm::detail::PassConcept<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&> > > >(llvm::Loop&, std::unique_ptr<llvm::detail::PassConcept<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>, std::default_delete<llvm::detail::PassConcept<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&> > >&, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>&, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&, llvm::PassInstrumentation&) (.constprop.158) LoopPassManager.cpp:0:0
#31 0x0000564edb7b6db8 llvm::PassManager<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>::runWithoutLoopNestPasses(llvm::Loop&, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>&, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x49dbdb8)
#32 0x0000564edb7b6f58 llvm::PassManager<llvm::Loop, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&>::run(llvm::Loop&, llvm::AnalysisManager<llvm::Loop, llvm::LoopStandardAnalysisResults&>&, llvm::LoopStandardAnalysisResults&, llvm::LPMUpdater&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x49dbf58)
#33 0x0000564edb7b8ca4 llvm::FunctionToLoopPassAdaptor::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x49ddca4)
#34 0x0000564edb64f05d llvm::detail::PassModel<llvm::Function, llvm::FunctionToLoopPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) crtstuff.c:0:0
#35 0x0000564ed9ddc989 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x3001989)
#36 0x0000564ed8393ead llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) crtstuff.c:0:0
#37 0x0000564ed9545413 llvm::CGSCCToFunctionPassAdaptor::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x276a413)
#38 0x0000564ed83948bd llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::CGSCCToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) crtstuff.c:0:0
#39 0x0000564ed953dd22 llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x2762d22)
#40 0x0000564ed9ee8e0d llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) crtstuff.c:0:0
#41 0x0000564ed95415e1 llvm::DevirtSCCRepeatedPass::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x27665e1)
#42 0x0000564ed9ee8ded llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::DevirtSCCRepeatedPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) crtstuff.c:0:0
#43 0x0000564ed953f5b4 llvm::ModuleToPostOrderCGSCCPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x27645b4)
#44 0x0000564ed9ee8e2d llvm::detail::PassModel<llvm::Module, llvm::ModuleToPostOrderCGSCCPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) crtstuff.c:0:0
#45 0x0000564ed9ddb5d7 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x30005d7)
#46 0x0000564ed9eec05e llvm::ModuleInlinerWrapperPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x311105e)
#47 0x0000564edb64fbed llvm::detail::PassModel<llvm::Module, llvm::ModuleInlinerWrapperPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) crtstuff.c:0:0
#48 0x0000564ed9ddb5d7 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x30005d7)
#49 0x0000564eda915e29 (anonymous namespace)::EmitAssemblyHelper::EmitAssemblyWithNewPassManager(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) BackendUtil.cpp:0:0
#50 0x0000564eda91a855 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x3b3f855)
#51 0x0000564edb5ef480 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) crtstuff.c:0:0
#52 0x0000564edc13b369 clang::ParseAST(clang::Sema&, bool, bool) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x5360369)
#53 0x0000564edb5ee298 clang::CodeGenAction::ExecuteAction() (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x4813298)
#54 0x0000564edaf474b1 clang::FrontendAction::Execute() (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x416c4b1)
#55 0x0000564edaee1319 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x4106319)
#56 0x0000564edb011540 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x4236540)
#57 0x0000564ed80e32a2 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x13082a2)
#58 0x0000564ed80df887 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#59 0x0000564edad8c685 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#60 0x0000564eda5736d2 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x37986d2)
#61 0x0000564edad8cd84 clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*, bool*) const (.part.217) Job.cpp:0:0
#62 0x0000564edad64136 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&) const (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x3f89136)
#63 0x0000564edad64c07 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x3f89c07)
#64 0x0000564edad6e5f1 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x3f935f1)
#65 0x0000564ed8025987 main (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x124a987)
#66 0x00007f860c6d909b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409b)
#67 0x0000564ed80df37a _start (/b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin/clang+++0x130437a)
clang-14: error: clang frontend command failed with exit code 134 (use -v to see invocation)
clang version 14.0.0 (https://github.com/llvm/llvm-project.git 9d982c67ba01ef5fcee1e2ca946a8bd0b6747ac0)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /b/sanitizer-x86_64-linux-bootstrap-ubsan/build/llvm_build0/bin
clang-14: note: diagnostic msg: 
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-14: note: diagnostic msg: /tmp/FindSymbols-7eebfb.cpp
clang-14: note: diagnostic msg: /tmp/FindSymbols-7eebfb.sh
clang-14: note: diagnostic msg:
Quuxplusone commented 3 years ago

Likely caused by one of the loops in here: https://github.com/llvm/llvm-project/blob/ba06ac8b45ca2ad047131fb9cc9af922cb913ea1/clang-tools-extra/clangd/FindSymbols.cpp#L533