Internal Error: Sub-system: QIS File ....

I was attempting to synthesize a mixed VHDL Verilog design. This design compiles in older quartus versions (12 and 15.1), modelsim, and all xilinx tools, but it will not compile in Quartus Prime Pro 17.1. Thank you in advance for any help.

I have attached the tarball with the source code and the QPF. This can be replicated by opening the QPF in Pro 17.1 and attempting to synthesize.

I see no warnings, but synthesis errors with the following report:

Problem Details

Error:

Internal Error: Sub-system: QIS, File: /quartus/synth/qis/qis_ip.cpp, Line: 1146

We auto discovered something not supported, look at debug messages above

Stack Trace:

0xb36fa: QIS_IP_PROCESSOR_IMPL::search_and_analyze(std::string const&, std::string const&, bool, bool, HDB_NAMESPACE*) + 0x23e (synth_qis)

0x6afb8: QIS_RTL_STAGE::IMPL::get_entity(HDB_INSTANCE_NAME*, CDB_SGATE_COMPONENT*) + 0x7ac (synth_qis)

0x8e86d: QIS_RTL_STAGE::IMPL::elaborate(QHD_PARTITION&) + 0x1a1 (synth_qis)

0x90734: QIS_RTL_STAGE::elaborate(QHD_PARTITION&) + 0xc (synth_qis)

0x90833: QIS_RTL_RECURSIVE_ELABORATION::after_elaboration(QHD_PARTITION&) + 0xf9 (synth_qis)

0x8fcb2: QIS_RTL_STAGE::IMPL::elaborate(QHD_PARTITION&) + 0x15e6 (synth_qis)

0x90734: QIS_RTL_STAGE::elaborate(QHD_PARTITION&) + 0xc (synth_qis)

0x90833: QIS_RTL_RECURSIVE_ELABORATION::after_elaboration(QHD_PARTITION&) + 0xf9 (synth_qis)

0x8fcb2: QIS_RTL_STAGE::IMPL::elaborate(QHD_PARTITION&) + 0x15e6 (synth_qis)

0x90734: QIS_RTL_STAGE::elaborate(QHD_PARTITION&) + 0xc (synth_qis)

0x90833: QIS_RTL_RECURSIVE_ELABORATION::after_elaboration(QHD_PARTITION&) + 0xf9 (synth_qis)

0x8fcb2: QIS_RTL_STAGE::IMPL::elaborate(QHD_PARTITION&) + 0x15e6 (synth_qis)

0x90734: QIS_RTL_STAGE::elaborate(QHD_PARTITION&) + 0xc (synth_qis)

0x56fce: qis_elaborate + 0x191 (synth_qis)

0x4c977: TclNRRunCallbacks + 0x47 (tcl8.6)

0x4e1ca: TclEvalEx + 0x96a (tcl8.6)

0xf68c6: Tcl_FSEvalFileEx + 0x266 (tcl8.6)

0xf69ce: Tcl_EvalFile + 0x2e (tcl8.6)

0x11d8b: qexe_evaluate_tcl_script(std::string const&) + 0x390 (comp_qexe)

0x1611d: qexe_do_tcl(QEXE_FRAMEWORK*, std::string const&, std::string const&, std::list<std::string, std::allocator<std::string> > const&, bool, bool) + 0x6c0 (comp_qexe)

0x1720e: qexe_run_tcl_option(QEXE_FRAMEWORK*, char const*, std::list<std::string, std::allocator<std::string> >*, bool) + 0x5df (comp_qexe)

0x39069: qcu_run_tcl_option(QCU_FRAMEWORK*, char const*, std::list<std::string, std::allocator<std::string> >*, bool) + 0xf20 (comp_qcu)

0x40739a: qsyn2_tcl_process_default_flow_option(ACF_VARIABLE_TYPE_ENUM, char const*) + 0xb4 (quartus_syn)

0x1ab65: qexe_standard_main(QEXE_FRAMEWORK*, QEXE_OPTION_DEFINITION const**, int, char const**) + 0x486 (comp_qexe)

0x40608e: qsyn2_main(int, char const**) + 0x141 (quartus_syn)

0x3f160: msg_main_thread(void*) + 0x10 (ccl_msg)

0x5b4c: thr_final_wrapper + 0xc (ccl_thr)

0x3f21f: msg_thread_wrapper(void* (*)(void*), void*) + 0x62 (ccl_msg)

0xac5c: mem_thread_wrapper(void* (*)(void*), void*) + 0x5c (ccl_mem)

0x8b49: err_thread_wrapper(void* (*)(void*), void*) + 0x27 (ccl_err)

0x5b8f: thr_thread_wrapper + 0x15 (ccl_thr)

0x41b11: msg_exe_main(int, char const**, int (*)(int, char const**)) + 0xb2 (ccl_msg)

0x4062af: main + 0x26 (quartus_syn)

0x21c05: __libc_start_main + 0xf5 (c)

End-trace

Executable: quartus_syn

Comment:

None

System Information

Platform: linux64

OS name: CentOS Linux

OS version:

Quartus Prime Information

Address bits: 64

Version: 17.1.0

Build: 240

Edition: Pro Edition