[Bug fortran/126816] [17 Regression] gfortran: ICE building pr46884.f between r17-3145 and r17-3194 on Darwin.

"anlauf at gcc dot gnu.org via Gcc-bugs" <[email protected]> Thu, 13 Aug 2026 21:25:46 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126816

Harald Anlauf <anlauf at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-08-13

--- Comment #1 from Harald Anlauf <anlauf at gcc dot gnu.org> ---
Confirmed also on x86_64-pc-linux-gnu under valgrind:

==484656== Invalid read of size 8
==484656==    at 0x10FD12D: gfc_resolve_substring(gfc_ref*, bool*)
(resolve.cc:5954)
[...]
==484656== 
==484656== Invalid read of size 4
==484656==    at 0x10FB2C9: compare_bound(gfc_expr*, gfc_expr*)
(resolve.cc:5209)
[...]
==484656== 
==484656== Invalid read of size 8
==484656==    at 0x10FD27D: gfc_resolve_substring(gfc_ref*, bool*)
(resolve.cc:5976)
[...]
==484656== 
==484656== Invalid read of size 8
==484656==    at 0x128AFEB: gfc_get_character_type(int, gfc_charlen*)
(trans-types.cc:1322)