[Bug fortran/85138] [8 regression] ICE with generic function

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85138

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |tkoenig at gcc dot gnu.org

--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
First, I have renamed the function "len" to "llen" in the original
test case to avoid confusion with the intrinsic.

The problem seems to be that, at the entry of pure_function(),
there are different opinions about purity:

(gdb) p e->symtree->n.sym->name
$6 = 0x7ffff743b078 "llen"
(gdb) p e->symtree->n.sym->attr.pure
$7 = 0
(gdb) p e->value.function
$8 = {actual = 0x2515700, name = 0x7ffff7438a80 "str_real_sp_fmt_len", isym =
0x0, esym = 0x2581200}
(gdb) p e->value.function.esym->attr.pure
$9 = 1

(Why this problem is exposed by Steve's patch, I have no idea).

Investigating further...