[Bug middle-end/61529] [5 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in check_probability, at basic-block.h:953

[renlin.li at arm dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61529

--- Comment #8 from Renlin Li <renlin.li at arm dot com> ---
I believe we observed the same behavior, and the first commit to cause the ICE
is r215739.

The newly introduced recompute_probabilities will set the probability back to
REG_BR_PROB_BASE. I will further dig into it.