[Bug 273291] www/firefox: Crashes on start after upgrading from 116.0.3_1,2 to 117.0,2

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273291

--- Comment #34 from Tatsuki Makino <tatsuki_makino@hotmail.com> ---
(In reply to Ken DEGUCHI from comment #33)

If the problem is caused by -O0 to -O1, then the cause exists in the
optimization of -O1.
Since -O1 is a set of -ffoo, -fbar and -fhoge, if it can be identified that a
problem exists in -fhoge, it can be solved by using -fno-hoge.
Additionally, the scope of the code to be changed by such optimization can be
limited and found.
But, while there is a list of -ffoo enabled by -O1 for gcc, there does not seem
to be such a list for llvm+clang.
https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

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