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

[cnsun at uwaterloo dot ca]

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

--- Comment #9 from Chengnian Sun <cnsun at uwaterloo dot ca> ---
Thanks, Andrew. 

What about -flto? Does GCC still guarantee such a compilation consistency wrt
to debug info in the presence of -flto?

If yes, I can enable this flag for several testing runs.

Thanks.