Open
Description
Reproducer:
https://godbolt.org/z/6954MqYjs
void f (int i)
{
switch (i)
{
int j;
#pragma omp allocate(j)
}
}The original reproducer of this issue is the following:
https://github.com/gcc-mirror/gcc/blob/master/gcc/testsuite/c-c%2B%2B-common/gomp/allocate-11.c
Backtrace:
Instruction referencing instruction not embedded in a basic block!
%0 = call i32 @__kmpc_global_thread_num(ptr @1), !dbg !17
%.j..void.addr = call addrspace(0) ptr @__kmpc_alloc(i32 %0, i64 4, ptr null), !dbg !DILocation(line: 4, column: 5, scope: !11)
Global is referenced by parentless instruction!
ptr @__kmpc_alloc
; ModuleID = '<source>'
%.j..void.addr = call addrspace(0) ptr @__kmpc_alloc(i32 %0, i64 4, ptr null), !dbg !DILocation(line: 4, column: 5, scope: !11)
fatal error: error in backend: Broken module found, compilation aborted!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -fopenmp <source>
1. <eof> parser at end of file
2. Optimizer
3. Running pass "verify" on module "<source>"
#0 0x0000000003f99d48 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f99d48)
#1 0x0000000003f979d4 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f979d4)
#2 0x0000000003edcb66 llvm::CrashRecoveryContext::HandleExit(int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3edcb66)
#3 0x0000000003f8f17e llvm::sys::Process::Exit(int, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f8f17e)
#4 0x0000000000da9890 LLVMErrorHandler(void*, char const*, bool) cc1_main.cpp:0:0
#5 0x0000000003ee7943 llvm::report_fatal_error(llvm::Twine const&, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3ee7943)
#6 0x0000000003ee7aa1 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3ee7aa1)
#7 0x0000000003968238 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3968238)
#8 0x000000000424494e llvm::detail::PassModel<llvm::Module, llvm::VerifierPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x424494e)
#9 0x00000000039326b0 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x39326b0)
#10 0x000000000425330a (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
#11 0x0000000004256381 clang::emitBackendOutput(clang::CompilerInstance&, clang::CodeGenOptions&, 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*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4256381)
#12 0x0000000004944bd0 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4944bd0)
#13 0x000000000662d34c clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x662d34c)
#14 0x0000000004944fd8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4944fd8)
#15 0x0000000004c3cea5 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c3cea5)
#16 0x0000000004bbbb3e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4bbbb3e)
#17 0x0000000004d30a49 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4d30a49)
#18 0x0000000000dac29f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xdac29f)
#19 0x0000000000da246a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#20 0x00000000049ac2c9 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::'lambda'()>(long) Job.cpp:0:0
#21 0x0000000003edcaa4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3edcaa4)
#22 0x00000000049ac8df clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#23 0x000000000496e6ad clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x496e6ad)
#24 0x000000000496f73e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x496f73e)
#25 0x0000000004977a25 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4977a25)
#26 0x0000000000da8208 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xda8208)
#27 0x0000000000c2df44 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xc2df44)
#28 0x00007117e4c29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#29 0x00007117e4c29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#30 0x0000000000da1f15 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xda1f15)
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Compiler returned: 70