eraseFictiousPHIs crash #2700
Description
Enzyme crashed for the cuda code with v.0.0245, .0.0232, but passed with v0.0206
clang++ -std=c++17 -O3 -DNDEBUG -fPIC \
--cuda-path=<cuda_root> --cuda-gpu-arch=sm_80 \
-Wno-unknown-cuda-version -Wno-deprecated-builtins -Wno-deprecated-declarations -Wno-unknown-warning-option -Wno-c++20-extensions \
-w -Wno-missing-template-arg-list-after-template-kw \
-fplugin="<enzyme>/libClangEnzyme.so" \
-mllvm -enzyme-loose-types=1 -mllvm -enzyme-detect-readthrow=0 -mllvm -enzyme-coalese=1 -mllvm -enzyme-noalias=1 -mllvm -enzyme-phi-restructure=1 \
-x cuda -c NonAdiabatic.cxx \
-o NonAdiabatic.o
with crash info
3. Running pass "EnzymeNewPM" on module "NonAdiabatic.cxx"
#0 0x00007fcd747cb86b llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libLLVM.so.19.1+0x7f886b)
#1 0x00007fcd747c8f9b SignalHandler(int) Signals.cpp:0:0
#2 0x00007fcd7cc77d20 __restore_rt (/lib64/libpthread.so.0+0x12d20)
#3 0x00007fcd736ab52f raise (/lib64/libc.so.6+0x4e52f)
#4 0x00007fcd7367ee65 abort (/lib64/libc.so.6+0x21e65)
#5 0x00007fcd7367ed39 _nl_load_domain.cold.0 (/lib64/libc.so.6+0x21d39)
#6 0x00007fcd736a3e86 (/lib64/libc.so.6+0x46e86)
#7 0x00007fcd721b367e GradientUtils::eraseFictiousPHIs() (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x4dc67e)
#8 0x00007fcd720ec8c1 EnzymeLogic::CreatePrimalAndGradient(RequestContext, ReverseCacheKey const&&, TypeAnalysis&, AugmentedReturn const*, bool) (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x4158c1)
#9 0x00007fcd7213036b AdjointGenerator::recursivelyHandleSubfunction(llvm::CallInst&, llvm::Function*, bool, std::vector<bool, std::allocator<bool>> const&, bool, DIFFE_TYPE, bool) (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x45936b)
#10 0x00007fcd72134f64 AdjointGenerator::visitCallInst(llvm::CallInst&) (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x45df64)
#11 0x00007fcd720ec823 EnzymeLogic::CreatePrimalAndGradient(RequestContext, ReverseCacheKey const&&, TypeAnalysis&, AugmentedReturn const*, bool) (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x415823)
#12 0x00007fcd72093270 (anonymous namespace)::EnzymeBase::HandleAutoDiff(llvm::Instruction*, unsigned int, llvm::Value*, llvm::Type*, llvm::SmallVectorImpl<llvm::Value*>&, std::map<int, llvm::Type*, std::less<int>, std::allocator<std::pair<int const, llvm::Type*>>> const&, std::vector<DIFFE_TYPE, std::allocator<DIFFE_TYPE>> const&, llvm::Function*, DerivativeMode, (anonymous namespace)::EnzymeBase::Options&, bool, llvm::SmallVectorImpl<llvm::CallInst*>&) Enzyme.cpp:0:0
#13 0x00007fcd72095981 (anonymous namespace)::EnzymeBase::HandleAutoDiffArguments(llvm::CallInst*, DerivativeMode, bool, llvm::SmallVectorImpl<llvm::CallInst*>&) Enzyme.cpp:0:0
#14 0x00007fcd7209f4b1 (anonymous namespace)::EnzymeBase::lowerEnzymeCalls(llvm::Function&, std::set<llvm::Function*, std::less<llvm::Function*>, std::allocator<llvm::Function*>>&) Enzyme.cpp:0:0
#15 0x00007fcd720a195a (anonymous namespace)::EnzymeBase::run(llvm::Module&) Enzyme.cpp:0:0
#16 0x00007fcd720b2a90 llvm::detail::PassModel<llvm::Module, EnzymeNewPM, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/mixu/software/Enzyme/enzyme/build-1917/Enzyme/libClangEnzyme.so+0x3dba90)
#17 0x00007fcd749baa73 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libLLVM.so.19.1+0x9e7a73)
#18 0x00007fcd7a7f785a (anonymous namespace)::EmitAssemblyHelper::RunOptimizationPipeline(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>&, std::unique_ptr<llvm::ToolOutputFile, std::default_delete<llvm::ToolOutputFile>>&, clang::BackendConsumer*) BackendUtil.cpp:0:0
#19 0x00007fcd7a7fa954 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>, clang::BackendConsumer*) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x20b6954)
#20 0x00007fcd7acb28f8 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x256e8f8)
#21 0x00007fcd7b723068 clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x2fdf068)
#22 0x00007fcd792c437c clang::ParseAST(clang::Sema&, bool, bool) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0xb8037c)
#23 0x00007fcd7b6e45d1 clang::FrontendAction::Execute() (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x2fa05d1)
#24 0x00007fcd7b6555eb clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x2f115eb)
#25 0x00007fcd7b7734f7 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/../lib/libclang-cpp.so.19.1+0x302f4f7)
#26 0x0000000000410e0a cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/clang+++0x410e0a)
#27 0x000000000040b35a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#28 0x000000000040d69a clang_main(int, char**, llvm::ToolContext const&) (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/clang+++0x40d69a)
#29 0x000000000040ab13 main (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/clang+++0x40ab13)
#30 0x00007fcd736977e5 __libc_start_main (/lib64/libc.so.6+0x3a7e5)
#31 0x000000000040ab5e _start (/home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin/clang+++0x40ab5e)
clang++: error: unable to execute command: Aborted (core dumped)
clang++: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 19.1.7 (https://github.com/llvm/llvm-project.git cd708029e0b2869e80abe31ddb175f7c35361f90)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /home/mixu/dev/vNNN/Cromwell/Dependencies/clang/linx64/bin
clang++: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++: note: diagnostic msg: /tmp/PdfPropertiesBoundaryNonAdiabatic-e7b88d.cu
clang++: note: diagnostic msg: /tmp/PdfPropertiesBoundaryNonAdiabatic-sm_80-8d82d5.cu
clang++: note: diagnostic msg: /tmp/PdfPropertiesBoundaryNonAdiabatic-e7b88d.sh
clang++: note: diagnostic msg:
********************