[GlobalOpt] Invalid Cast Combination UNREACHABLE executed at /root/llvm-project/llvm/lib/IR/Instructions.cpp:3033! #157334
Description
Reproducer:
https://godbolt.org/z/Ge3Wo889v
Backtrace:
Invalid Cast Combination
UNREACHABLE executed at /root/llvm-project/llvm/lib/IR/Instructions.cpp:3033!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=globalopt <source>
1. Running pass "globalopt" on module "<source>"
#0 0x00000000057a24d8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x57a24d8)
#1 0x000000000579f384 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x0000786f98642520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x0000786f986969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x0000786f98642476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x0000786f986287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00000000056d95ea (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x56d95ea)
#7 0x00000000055013fb llvm::CastInst::isEliminableCastPair(llvm::Instruction::CastOps, llvm::Instruction::CastOps, llvm::Type*, llvm::Type*, llvm::Type*, llvm::Type*, llvm::Type*, llvm::Type*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x55013fb)
#8 0x00000000053d084e llvm::ConstantFoldCastInstruction(unsigned int, llvm::Constant*, llvm::Type*) (.part.0) ConstantFold.cpp:0:0
#9 0x0000000005405f77 getFoldedCast(llvm::Instruction::CastOps, llvm::Constant*, llvm::Type*, bool) Constants.cpp:0:0
#10 0x0000000004b90447 llvm::ConstantFoldCastOperand(unsigned int, llvm::Constant*, llvm::Type*, llvm::DataLayout const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4b90447)
#11 0x0000000004b9995e (anonymous namespace)::ConstantFoldInstOperandsImpl(llvm::Value const*, unsigned int, llvm::ArrayRef<llvm::Constant*>, llvm::DataLayout const&, llvm::TargetLibraryInfo const*, bool) ConstantFolding.cpp:0:0
#12 0x0000000004b9a368 (anonymous namespace)::ConstantFoldConstantImpl(llvm::Constant const*, llvm::DataLayout const&, llvm::TargetLibraryInfo const*, llvm::SmallDenseMap<llvm::Constant*, llvm::Constant*, 4u, llvm::DenseMapInfo<llvm::Constant*, void>, llvm::detail::DenseMapPair<llvm::Constant*, llvm::Constant*>>&) (.part.0) ConstantFolding.cpp:0:0
#13 0x0000000004b9a7c3 llvm::ConstantFoldConstant(llvm::Constant const*, llvm::DataLayout const&, llvm::TargetLibraryInfo const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4b9a7c3)
#14 0x00000000030b3271 optimizeGlobalsInModule(llvm::Module&, llvm::DataLayout const&, llvm::function_ref<llvm::TargetLibraryInfo& (llvm::Function&)>, llvm::function_ref<llvm::TargetTransformInfo& (llvm::Function&)>, llvm::function_ref<llvm::BlockFrequencyInfo& (llvm::Function&)>, llvm::function_ref<llvm::DominatorTree& (llvm::Function&)>, llvm::function_ref<void (llvm::Function&)>, llvm::function_ref<void (llvm::Function&)>) (.constprop.0) GlobalOpt.cpp:0:0
#15 0x00000000030b480f llvm::GlobalOptPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x30b480f)
#16 0x0000000002e2aaee llvm::detail::PassModel<llvm::Module, llvm::GlobalOptPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x2e2aaee)
#17 0x000000000558c2f1 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x558c2f1)
#18 0x00000000009776b8 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x9776b8)
#19 0x000000000096b727 optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x96b727)
#20 0x0000786f98629d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#21 0x0000786f98629e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#22 0x0000000000962845 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x962845)
Program terminated with signal: SIGSEGV
Compiler returned: 139