[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 #35 from Tomoaki AOKI <junchoon@dec.sakura.ne.jp> ---
(In reply to Tatsuki Makino from comment #34)

Found this [1] by Texas Instruments for their arm processors.
Not sure if it's generic enough that is applicable to llvm/clang13 on FreeBSD,
notably other than arm arch.

Oh...too excessibly many even for -O1. We should try narrowing down possibly
affected options to try. Firefox is too large to try every options. :-(

Maybe what is affecting this would be something related with alignment and/or
bounds of objects, including segments, structs, arrays and something more.

At least for me, the failure mode is SIGSEGV, usualy means out of bounds
accesses.

[1]
https://software-dl.ti.com/codegen/docs/tiarmclang/compiler_tools_user_guide/compiler_manual/using_compiler/compiler_options/optimization_options.html

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