[Bug tree-optimization/104156] [12 Regression] -fcompare-debug failure with -O2 -funswitch-loops since r12-4526-gd8edfadfc7a9795b

[cnsun at uwaterloo dot ca via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104156

--- Comment #7 from Chengnian Sun <cnsun at uwaterloo dot ca> ---
A quick question. Besides the flags `-fcompare-debug -g3 -O3`, are there any
other flags I should enable to better/faster find such -fcompare-debug
failures?

Thanks.