https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99314
Kito Cheng <kito at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2021-03-05
Ever confirmed|0 |1
--- Comment #4 from Kito Cheng <kito at gcc dot gnu.org> ---
I can reproduce that on Ubuntu 20.04 + gcc 9.3, it turns out the length is out
of range with `signed HOST_WIDE_INT`, but after few more investigate the upper
function is feed `unsigned HOST_WIDE_INT` (emit_block_move_via_pattern), and I
guess here is some code gen change for alloca, so it will ICE on Ubuntu 20.04 +
gcc 9.3, but not ICE on Ubuntu 18.04 + gcc 7.5.
Thanks Sinan, I've write second version of the patch, it's kind of very
different than your patch, but I think you deserved that credit, so I'll list
you as first author for that patch :)
