https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66714
--- Comment #3 from vries at gcc dot gnu.org ---
The cause of the SIGSEGV is that for loc fdata.5 in main._omp_fn.46
DECL_HAS_VALUE_EXPR_P (loc) is set, but DECL_VALUE_EXPR (loc) is NULL:
...
Program received signal SIGSEGV, Segmentation fault.
0x000000000092e8c9 in loc_list_from_tree (loc=0x0, want_address=0, context=0x0)
at /home/vries/gcc_versions/devel/gomp-4_0-branch/src/gcc/dwarf2out.c:14444
14444 switch (TREE_CODE (loc))
(gdb) up
#1 0x000000000092eeef in loc_list_from_tree (loc=0x7ffff5f03870,
want_address=0, context=0x0)
at /home/vries/gcc_versions/devel/gomp-4_0-branch/src/gcc/dwarf2out.c:14571
14571 want_address, context);
(gdb) l
14566
14567 case PARM_DECL:
14568 case RESULT_DECL:
14569 if (DECL_HAS_VALUE_EXPR_P (loc))
14570 return loc_list_from_tree (DECL_VALUE_EXPR (loc),
14571 want_address, context);
14572 /* FALLTHRU */
14573
14574 case FUNCTION_DECL:
14575 {
(gdb) call debug_generic_expr (loc)
fdata.5
(gdb) call current_function_name ()
$1 = 0x7ffff5efc190 "main._omp_fn.46"
...
