[Bug fortran/80235] ICE: coarrays, submodule

["dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80235

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-03-29
                 CC|                            |pault at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed on 6.3.0 and trunk (7.0.1). If I compile the submodule file with an
instrumented gfortran I get

../../p_work/gcc/fortran/trans-decl.c:4694:14: runtime error: member access
within null pointer of type 'struct module_htab_entry'
ASAN:DEADLYSIGNAL
=================================================================
==98134==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc
0x00010050e94e bp 0x7fff5fbfd660 sp 0x7fff5fbfd590 T0)
==98134==The signal is caused by a READ memory access.
==98134==Hint: address points to the zero page.
    #0 0x10050e94d in gfc_module_add_decl(module_htab_entry*, tree_node*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10050e94d)
    #1 0x100510fe7 in gfc_build_qualified_array(tree_node*, gfc_symbol*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100510fe7)
    #2 0x100529fe6 in gfc_get_symbol_decl(gfc_symbol*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100529fe6)
    #3 0x1005a5fb8 in gfc_conv_variable(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1005a5fb8)
    #4 0x100585f84 in gfc_conv_expr(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100585f84)
    #5 0x10059e348 in gfc_conv_expr_lhs(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10059e348)
    #6 0x100445d15 in gfc_conv_ss_descriptor(stmtblock_t*, gfc_ss*, int)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100445d15)
    #7 0x100491e42 in gfc_conv_expr_descriptor(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100491e42)
    #8 0x100616c35 in gfc_conv_intrinsic_size(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100616c35)
    #9 0x10069d548 in gfc_conv_intrinsic_function(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10069d548)
    #10 0x1005eb934 in gfc_conv_function_expr(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1005eb934)
    #11 0x100585f6a in gfc_conv_expr(gfc_se*, gfc_expr*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100585f6a)
    #12 0x1005fd683 in gfc_trans_assignment_1(gfc_expr*, gfc_expr*, bool, bool,
bool, bool)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1005fd683)
    #13 0x10060010e in gfc_trans_assignment(gfc_expr*, gfc_expr*, bool, bool,
bool, bool)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10060010e)
    #14 0x100600335 in gfc_trans_assign(gfc_code*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100600335)
    #15 0x100412e5f in trans_code(gfc_code*, tree_node*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100412e5f)
    #16 0x100414328 in gfc_trans_code(gfc_code*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100414328)
    #17 0x1005462de in gfc_generate_function_code(gfc_namespace*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1005462de)
    #18 0x10042076d in gfc_generate_module_code(gfc_namespace*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10042076d)
    #19 0x100278e07 in translate_all_program_units(gfc_namespace*)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x100278e07)
    #20 0x1002933bb in gfc_parse_file()
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1002933bb)
    #21 0x1003e803c in gfc_be_parse_file()
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1003e803c)
    #22 0x10433ab18 in compile_file()
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10433ab18)
    #23 0x10434360c in do_compile()
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x10434360c)
    #24 0x1061e7b34 in toplev::main(int, char**)
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1061e7b34)
    #25 0x1061ece11 in main
(/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/f951+0x1061ece11)
    #26 0x7fffb5a49234 in start (/usr/lib/system/libdyld.dylib+0x5234)