Internal Compiler Error: Unhandled exception with tuple return type

[Aasthaengg]

Here's my sample program -

def modf(x: f64) -> tuple[f64, i32]:
    """
    Return fractional and integral parts of `x` as a pair.
    """
    return (x - int(x), int(x))

res: tuple[f64, i32]
res = modf(3.14)

It raises the following error -

Internal Compiler Error: Unhandled exception
BFD: DWARF error: section .debug_info is larger than its filesize! (0x5b4757 vs 0x429c68)
BFD: DWARF error: section .debug_info is larger than its filesize! (0x5b4757 vs 0x429c68)
Traceback (most recent call last):
  Binary file "/home/kn1ght/lpython/lpython_personal/src/bin/lpython", in _start()
  Binary file "/lib/x86_64-linux-gnu/libc.so.6", in __libc_start_main()
  Binary file "/lib/x86_64-linux-gnu/libc.so.6", in __libc_init_first()
  File "/home/kn1ght/lpython/lpython_personal/src/bin/lpython.cpp", line 833, in ??
    err = compile_python_to_object_file(arg_file, tmp_o, runtime_library_dir, compiler_options, time_report);
  File "/home/kn1ght/lpython/lpython_personal/src/bin/lpython.cpp", line 332, in ??
    res = fe.get_llvm3(*asr, diagnostics);
  File "/home/kn1ght/lpython/lpython_personal/src/lpython/python_evaluator.cpp", line 57, in LFortran::PythonCompiler::get_llvm3(LFortran::ASR::TranslationUnit_t&, LFortran::diag::Diagnostics&)
    run_fn);
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/codegen/asr_to_llvm.cpp", line 4446, in LFortran::asr_to_llvm(LFortran::ASR::TranslationUnit_t&, LFortran::diag::Diagnostics&, llvm::LLVMContext&, Allocator&, LFortran::Platform, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)
    v.visit_asr((ASR::asr_t&)asr);
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/../libasr/asr.h", line 2898, in LFortran::ASR::BaseVisitor<LFortran::ASRToLLVMVisitor>::visit_asr(LFortran::ASR::asr_t const&)
    void visit_asr(const asr_t &b) { visit_asr_t(b, self()); }
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/../libasr/asr.h", line 2876, in ??
    case asrType::unit: { v.visit_unit((const unit_t &)x); return; }
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/../libasr/asr.h", line 2899, in LFortran::ASR::BaseVisitor<LFortran::ASRToLLVMVisitor>::visit_unit(LFortran::ASR::unit_t const&)
    void visit_unit(const unit_t &b) { visit_unit_t(b, self()); }
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/../libasr/asr.h", line 2711, in ??
    case unitType::TranslationUnit: { v.visit_TranslationUnit((const TranslationUnit_t &)x); return; }
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/codegen/asr_to_llvm.cpp", line 914, in LFortran::ASRToLLVMVisitor::visit_TranslationUnit(LFortran::ASR::TranslationUnit_t const&)
    visit_Function(*ASR::down_cast<ASR::Function_t>(item.second));
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/codegen/asr_to_llvm.cpp", line 1999, in LFortran::ASRToLLVMVisitor::visit_Function(LFortran::ASR::Function_t const&)
    instantiate_function(x);
  File "/home/kn1ght/lpython/lpython_personal/src/libasr/codegen/asr_to_llvm.cpp", line 2100, in LFortran::ASRToLLVMVisitor::instantiate_function(LFortran::ASR::Function_t const&)
    llvm::FunctionType* function_type = get_function_type(x);
AssertFailed: false

The program runs fine when run with python using PYTHONPATH=src/runtime/ltypes python test.py

[namannimmo10]

Yes, we need to get tuples working in the backend. See #162.