Assertion `MI->getOpcode() == TargetOpcode::COPY && "start of copy chain MUST be COPY"' failed #790
Closed as not planned
Description
clang: /local/scratch/hmka2/cheri/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:11978: llvm::Register FollowCopyChain(llvm::MachineRegisterInfo &, llvm::Register): Assertion `MI->getOpcode() == TargetOpcode::COPY && "start of copy chain MUST be COPY"' failed.
PLEASE submit a bug report to https://github.com/CTSRD-CHERI/llvm-project/issues and include the crash backtrace, preprocessed source, and associated run script.
If you built clang from source, please provide a reduced test case by running:
$LLVM_BUILD_DIR/bin/creduce_crash_testcase.py <reproducer>.sh
Stack dump:
0. Program arguments: clang -Wp,-MMD,drivers/usb/core/.devio.o.d -nostdinc -I./arch/riscv/include -I./arch/riscv/include/generated -I./include -I./include -I./arch/riscv/include/uapi -I./arch/riscv/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ --target=riscv64-linux-gnu -fintegrated-as -Werror=unknown-warning-option -Werror=ignored-optimization-argument -Werror=option-ignored -Werror=unused-command-line-argument -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -mabi=lp64 -march=rv64imac -mno-save-restore -mcmodel=medany -fno-asynchronous-unwind-tables -fno-unwind-tables -fno-delete-null-pointer-checks -O2 -fstack-protector-strong -fno-omit-frame-pointer -fno-optimize-sibling-calls -ftrivial-auto-var-init=zero -falign-functions=4 -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fno-builtin-wcslen -Wall -Wextra -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wmissing-declarations -Wmissing-prototypes -Wframe-larger-than=2048 -Wno-gnu -Wno-pointer-sign -Wcast-function-type -Wimplicit-fallthrough -Werror=date-time -Werror=incompatible-pointer-types -Wenum-conversion -Wunused -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-override-init -Wno-pointer-to-enum-cast -Wno-tautological-constant-out-of-range-compare -Wno-unaligned-access -Wno-enum-compare-conditional -Wno-missing-field-initializers -Wno-type-limits -Wno-shift-negative-value -Wno-enum-enum-conversion -Wno-sign-compare -Wno-unused-parameter -DKBUILD_MODFILE=\"drivers/usb/core/usbcore\" -DKBUILD_BASENAME=\"devio\" -DKBUILD_MODNAME=\"usbcore\" -D__KBUILD_MODNAME=kmod_usbcore -c -o drivers/usb/core/devio.o drivers/usb/core/devio.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'drivers/usb/core/devio.c'.
4. Running pass 'RISC-V DAG->DAG Pattern Instruction Selection' on function '@parse_usbdevfs_streams'
#0 0x000055ddc50a4187 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x52d9187)
#1 0x000055ddc50a1f3e llvm::sys::RunSignalHandlers() (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x52d6f3e)
#2 0x000055ddc5012d58 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x00007ecd02a42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x00007ecd02a969fc __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x00007ecd02a969fc __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x00007ecd02a969fc pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x00007ecd02a42476 gsignal ./signal/../sysdeps/posix/raise.c:27:6
#8 0x00007ecd02a287f3 abort ./stdlib/abort.c:81:7
#9 0x00007ecd02a2871b _nl_load_domain ./intl/loadmsgcat.c:1177:9
#10 0x00007ecd02a39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#11 0x000055ddc619c794 llvm::SelectionDAGBuilder::visitCallBrLandingPad(llvm::CallInst const&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x63d1794)
#12 0x000055ddc618c888 llvm::SelectionDAGBuilder::visitIntrinsicCall(llvm::CallInst const&, unsigned int) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x63c1888)
#13 0x000055ddc615e8f6 llvm::SelectionDAGBuilder::visit(llvm::Instruction const&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x63938f6)
#14 0x000055ddc62113d0 llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true, false, void>, false, true>, llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true, false, void>, false, true>, bool&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x64463d0)
#15 0x000055ddc621070b llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x644570b)
#16 0x000055ddc620d515 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x6442515)
#17 0x000055ddc45d12f5 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x48062f5)
#18 0x000055ddc4b6ce6b llvm::FPPassManager::runOnFunction(llvm::Function&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x4da1e6b)
#19 0x000055ddc4b752b1 llvm::FPPassManager::runOnModule(llvm::Module&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x4daa2b1)
#20 0x000055ddc4b6d8f5 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x4da28f5)
#21 0x000055ddc58501f2 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>>) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5a851f2)
#22 0x000055ddc5d4d759 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) CodeGenAction.cpp:0:0
#23 0x000055ddc6b4fac4 clang::ParseAST(clang::Sema&, bool, bool) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x6d84ac4)
#24 0x000055ddc5c627d0 clang::FrontendAction::Execute() (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5e977d0)
#25 0x000055ddc5bd00ff clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5e050ff)
#26 0x000055ddc5d459b2 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5f7a9b2)
#27 0x000055ddc3719a33 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x394ea33)
#28 0x000055ddc371692d ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#29 0x000055ddc5a35f79 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::$_1>(long) Job.cpp:0:0
#30 0x000055ddc5012a9c llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5247a9c)
#31 0x000055ddc5a3569f clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5c6a69f)
#32 0x000055ddc59ef7e9 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5c247e9)
#33 0x000055ddc59efaa7 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5c24aa7)
#34 0x000055ddc5a0fc3a clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x5c44c3a)
#35 0x000055ddc3715e37 clang_main(int, char**, llvm::ToolContext const&) (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x394ae37)
#36 0x000055ddc3726f11 main (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x395bf11)
#37 0x00007ecd02a29d90 __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#38 0x00007ecd02a29e40 call_init ./csu/../csu/libc-start.c:128:20
#39 0x00007ecd02a29e40 __libc_start_main ./csu/../csu/libc-start.c:379:5
#40 0x000055ddc3712de5 _start (/local/scratch/hmka2/cheri/output/sdk/bin/clang-17+0x3947de5)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
clang version 17.0.0 (https://github.com/CTSRD-CHERI/llvm-project.git 05c88511ae7c60ec12fc2e15dce91eba6783db04)
Target: riscv64-unknown-linux-gnu
Thread model: posix
InstalledDir: /local/scratch/hmka2/cheri/output/sdk/bin
clang: note: diagnostic msg:
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