https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82257
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-09-19
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed from 4.8 up to trunk (8.0). Unlimited polymorphism was not supported
before 4.8.
Compiling the test with an instrumented compiler gives
==64570==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc
0x0001001c5a58 bp 0x7fff5fbfe370 sp 0x7fff5fbfe350 T0)
==64570==The signal is caused by a READ memory access.
==64570==Hint: address points to the zero page.
#0 0x1001c5a57 in gfc_typename(gfc_typespec*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1001c5a57)
#1 0x10011700c in gfc_check_result_characteristics(gfc_symbol*,
gfc_symbol*, char*, int)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x10011700c)
#2 0x100133e23 in gfc_check_typebound_override(gfc_symtree*, gfc_symtree*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x100133e23)
#3 0x1002ec010 in resolve_typebound_procedure(gfc_symtree*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1002ec010)
#4 0x10039b288 in do_traverse_symtree(gfc_symtree*, void (*)(gfc_symtree*),
void (*)(gfc_symbol*))
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x10039b288)
#5 0x1003b3732 in gfc_traverse_symtree(gfc_symtree*, void
(*)(gfc_symtree*))
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1003b3732)
#6 0x100300484 in resolve_typebound_procedures(gfc_symbol*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x100300484)
#7 0x100307e43 in resolve_fl_derived(gfc_symbol*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x100307e43)
#8 0x1002f7bb3 in resolve_symbol(gfc_symbol*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1002f7bb3)
#9 0x10039b1b8 in do_traverse_symtree(gfc_symtree*, void (*)(gfc_symtree*),
void (*)(gfc_symbol*))
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x10039b1b8)
#10 0x1003b3773 in gfc_traverse_ns(gfc_namespace*, void (*)(gfc_symbol*))
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1003b3773)
#11 0x100345c3a in resolve_types(gfc_namespace*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x100345c3a)
#12 0x1002f42cf in gfc_resolve(gfc_namespace*)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1002f42cf)
#13 0x10029a2bf in gfc_parse_file()
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x10029a2bf)
#14 0x1003f14f2 in gfc_be_parse_file()
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1003f14f2)
#15 0x1045a4bac in compile_file()
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1045a4bac)
#16 0x1045ad7fe in do_compile()
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1045ad7fe)
#17 0x10651f30d in toplev::main(int, char**)
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x10651f30d)
#18 0x1065249ce in main
(/opt/gcc/gcc8g/libexec/gcc/x86_64-apple-darwin16.7.0/8.0.0/f951+0x1065249ce)
#19 0x7fffbcb65234 in start (/usr/lib/system/libdyld.dylib+0x5234)
