[Bug rtl-optimization/86854] crash on stack unwinding with reorder-blocks-and-partition + linker code folding + C++ exceptions

[oremanj at mit dot edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86854

--- Comment #1 from Joshua Oreman <oremanj at mit dot edu> ---
To clarify, the -freorder-blocks-and-partition argument in the example
invocations is superfluous (that optimization is enabled by default at -O2).
With -fno-reorder-blocks-and-partition the issue is not observed even with
identical code folding enabled.