| Issue |
173766
|
| Summary |
[flang] crashes on derived type I/O when sequence type and interface have same name
|
| Labels |
flang
|
| Assignees |
|
| Reporter |
edvinolo
|
Reproducer:
https://gcc.godbolt.org/z/nb7WEczr5
``` fortran
module m_1
implicit none
type :: s
sequence
integer :: i
end type
interface s
end interface
interface write(formatted)
module procedure :: write_formatted
end interface
contains
subroutine write_formatted(t, unit, iotype, v_list, iostat, iomsg)
type(s), intent(in) :: t
integer, intent(in) :: unit
character(len=*), intent(in) :: iotype
integer, intent(in) :: v_list(:)
integer, intent(out) :: iostat
character(len=*), intent(inout) :: iomsg
end subroutine
subroutine f
type(s) :: t
print *, t
end subroutine
end module m_1
```
Backtrace:
```
fatal internal error: CHECK(typeSymbol_.has<DerivedTypeDetails>()) failed at /root/llvm-project/flang/lib/Semantics/type.cpp(28)
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: /cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang -fc1 -triple x86_64-unknown-linux-gnu -S -mrelocation-model pic -pic-level 2 -pic-is-pie -target-cpu x86-64 -mllvm -x86-asm-syntax=intel -resource-dir /cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/lib/clang/22 -mframe-pointer=all -o /app/output.s -x f95 /app/example.f90
#0 0x000000000454e268 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x454e268)
#1 0x000000000454b434 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x000077831ae42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x000077831ae969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x000077831ae42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x000077831ae287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x0000000006771009 (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x6771009)
#7 0x000000000512dd0f (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x512dd0f)
#8 0x00000000050af051 Fortran::semantics::CollectNonTbpDefinedIoGenericInterfaces(Fortran::semantics::Scope const&, bool) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x50af051)
#9 0x00000000050aef5b Fortran::semantics::CollectNonTbpDefinedIoGenericInterfaces(Fortran::semantics::Scope const&, bool) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x50aef5b)
#10 0x0000000004cac424 genOutputItemList(Fortran::lower::AbstractConverter&, mlir::Value, std::__cxx11::list<Fortran::parser::OutputItem, std::allocator<Fortran::parser::OutputItem>> const&, bool, bool, mlir::Value&, bool) IO.cpp:0:0
#11 0x0000000004cb11a1 mlir::Value genDataTransferStmt<false, false, Fortran::parser::PrintStmt>(Fortran::lower::AbstractConverter&, Fortran::parser::PrintStmt const&) IO.cpp:0:0
#12 0x00000000049e923b (anonymous namespace)::FirConverter::genFIR(Fortran::lower::pft::Evaluation&, bool) (.constprop.0) Bridge.cpp:0:0
#13 0x00000000049ee15c (anonymous namespace)::FirConverter::lowerFunc(Fortran::lower::pft::FunctionLikeUnit&) Bridge.cpp:0:0
#14 0x00000000049eff38 Fortran::lower::LoweringBridge::lower(Fortran::parser::Program const&, Fortran::semantics::SemanticsContext const&) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x49eff38)
#15 0x000000000485c20c Fortran::frontend::CodeGenAction::beginSourceFileAction() (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x485c20c)
#16 0x00000000045b1605 Fortran::frontend::FrontendAction::beginSourceFile(Fortran::frontend::CompilerInstance&, Fortran::frontend::FrontendInputFile const&) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x45b1605)
#17 0x000000000459e9ff Fortran::frontend::CompilerInstance::executeAction(Fortran::frontend::FrontendAction&) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x459e9ff)
#18 0x00000000045baf53 Fortran::frontend::executeCompilerInvocation(Fortran::frontend::CompilerInstance*) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x45baf53)
#19 0x00000000027f4332 fc1_main(llvm::ArrayRef<char const*>, char const*) (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x27f4332)
#20 0x0000000002693041 main (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x2693041)
#21 0x000077831ae29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#22 0x000077831ae29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#23 0x00000000027f2de5 _start (/cefs/d9/d98d5df9f22bfabe4705b57b_clang-llvmflang-trunk-20251228/bin/flang+0x27f2de5)
flang-22: error: unable to execute command: Aborted (core dumped)
flang-22: error: flang frontend command failed due to signal (use -v to see invocation)
flang version 22.0.0git (https://github.com/llvm/llvm-project.git f59e2b20ead28738ea6350a922ed1867f5d47139)
Target: x86_64-unknown-linux-gnu
Thread model: posix
```
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
