https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93175
Bug ID: 93175
Summary: ICE involving nested parameterized derived types
Product: gcc
Version: 9.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: townsend at astro dot wisc.edu
Target Milestone: ---
I get an ICE when compiling this example code (involving a PDT inside a PDT):
----
module pdt_test_m
type :: matrix (k,n)
integer, kind :: k
integer, len :: n
real(k) :: a(n,n)
end type matrix
type :: problem(n)
integer, len :: n
type(matrix(kind(0.D0),n)) :: m
end type problem
end module pdt_test_m
program pdt_test
use pdt_test_m
implicit none
type(problem(2)) :: p
p%m%a = 1.
print *, p%n
print *, p%m%n
print *, p%m%a
end program pdt_test
----
The error is as follows (on Linux):
pdt-test.f90:30:0:
30 | end program pdt_test
|
internal compiler error: Segmentation fault
0xad494f crash_signal
/root/sdk2/build/gcc/gcc/toplev.c:326
0x59e47f insert_parameter_exprs
/root/sdk2/build/gcc/gcc/fortran/decl.c:3491
0x59e47f insert_parameter_exprs
/root/sdk2/build/gcc/gcc/fortran/decl.c:3477
0x5bcced gfc_traverse_expr(gfc_expr*, gfc_symbol*, bool (*)(gfc_expr*,
gfc_symbol*, int*), int)
/root/sdk2/build/gcc/gcc/fortran/expr.c:5144
0x670ffa structure_alloc_comps
/root/sdk2/build/gcc/gcc/fortran/trans-array.c:9353
0x674a80 gfc_allocate_pdt_comp(gfc_symbol*, tree_node*, int,
gfc_actual_arglist*)
/root/sdk2/build/gcc/gcc/fortran/trans-array.c:9630
0x670924 structure_alloc_comps
/root/sdk2/build/gcc/gcc/fortran/trans-array.c:9428
0x674a80 gfc_allocate_pdt_comp(gfc_symbol*, tree_node*, int,
gfc_actual_arglist*)
/root/sdk2/build/gcc/gcc/fortran/trans-array.c:9630
0x6833e3 gfc_trans_deferred_vars(gfc_symbol*, gfc_wrapped_block*)
/root/sdk2/build/gcc/gcc/fortran/trans-decl.c:4599
0x6859f9 gfc_generate_function_code(gfc_namespace*)
/root/sdk2/build/gcc/gcc/fortran/trans-decl.c:6851
0x6102e6 translate_all_program_units
/root/sdk2/build/gcc/gcc/fortran/parse.c:6134
0x6102e6 gfc_parse_file()
/root/sdk2/build/gcc/gcc/fortran/parse.c:6367
0x65aa5f gfc_be_parse_file
/root/sdk2/build/gcc/gcc/fortran/f95-lang.c:204
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
(On OSX I also get a segfault, but the nice backtrace info is missing. Is there
a build flag for gcc to fix the lack of backtrace?)
cheers,
Rich
