https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111218
Bug ID: 111218
Summary: Conflict in BIND(C) INTERFACEs in two Modules leads to
ICE.
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: toon at moene dot org
Target Milestone: ---
The following program:
MODULE FIELD_2RM_UTIL_MODULE
INTERFACE
SUBROUTINE SET_ABOR1_EXCEPTION_HANDLER()
BIND(C,name="set_abor1_exception_handler")
END SUBROUTINE SET_ABOR1_EXCEPTION_HANDLER
END INTERFACE
END MODULE
MODULE FIELD_3RM_UTIL_MODULE
INTERFACE
SUBROUTINE SET_ABOR1_EXCEPTION_HANDLER()
BIND(C,name="set_abor1_exception_handler")
END SUBROUTINE SET_ABOR1_EXCEPTION_HANDLER
END INTERFACE
END MODULE
MODULE FIELD_UTIL_MODULE
USE FIELD_2RM_UTIL_MODULE
USE FIELD_3RM_UTIL_MODULE
IMPLICIT NONE
END MODULE
leads to the following internal compiler error:
/home/toon/compilers/install/gcc/bin/gfortran -c -g a.f90
in gfc_format_decoder, at fortran/error.cc:1078
0x75917d gfc_format_decoder
/home/toon/compilers/gcc/gcc/fortran/error.cc:1078
0x2153e1f pp_format(pretty_printer*, text_info*)
/home/toon/compilers/gcc/gcc/pretty-print.cc:1475
0x21315be diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
/home/toon/compilers/gcc/gcc/diagnostic.cc:1606
0x9b628e gfc_report_diagnostic
/home/toon/compilers/gcc/gcc/fortran/error.cc:890
0x9b628e gfc_error_opt
/home/toon/compilers/gcc/gcc/fortran/error.cc:1460
0x9b7470 gfc_error(char const*, ...)
/home/toon/compilers/gcc/gcc/fortran/error.cc:1489
0xa6205b ambiguous_symbol
/home/toon/compilers/gcc/gcc/fortran/symbol.cc:3167
0xa6ce9e gfc_find_sym_tree(char const*, gfc_namespace*, int, gfc_symtree**)
/home/toon/compilers/gcc/gcc/fortran/symbol.cc:3240
0xa6cec1 gfc_find_symbol(char const*, gfc_namespace*, int, gfc_symbol**)
/home/toon/compilers/gcc/gcc/fortran/symbol.cc:3291
0xb27a05 check_against_globals
/home/toon/compilers/gcc/gcc/fortran/frontend-passes.cc:5842
0xa630e2 do_traverse_symtree
/home/toon/compilers/gcc/gcc/fortran/symbol.cc:4190
0xb30231 gfc_check_externals(gfc_namespace*)
/home/toon/compilers/gcc/gcc/fortran/frontend-passes.cc:5888
0xa293d8 gfc_parse_file()
/home/toon/compilers/gcc/gcc/fortran/parse.cc:7195
0xa7aecf gfc_be_parse_file
/home/toon/compilers/gcc/gcc/fortran/f95-lang.cc:229
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
(tested with gcc version 14.0.0 20230828 (experimental) [master
r14-3528-gc3669bb677b] (GCC)
