[Bug rtl-optimization/125173] ICE: in combine_and_move_insns, at ira.cc:3992 with -O1 -fno-fuse-ops-with-volatile-access -fno-forward-propagate --param=max-cse-insns=0

stefansf at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jul 3 15:03:41 GMT 2026


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125173

--- Comment #10 from Stefan Schulze Frielinghaus <stefansf at gcc dot gnu.org> ---
Urgs.  The tests are failing because -fno-fuse-ops-with-volatile-access is a
new option introduced with GCC 16.

To my defense I didn't blindly backport.  I did test on each branch that the
ICE is reproducible with the test and fixed with the patch.  However, I did the
testing manually where I removed the option for older branches.  Would have
been obvious if I had used the backported commit directly.  Shouldn't have
happened.  I will come up with fixes.


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