https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54089

--- Comment #81 from Alexander Klepikov <klepikov.alex+bugs at gmail dot com> 
---
(In reply to Oleg Endo from comment #78)
> The compiler processes one function at a time, all passes at once.  It
> doesn't mix passes of different functions.  So I think using global variable
> in sh.cc + override 'set_current_function' should get the job done.  When
> the insn split code is executed, just set the global flag in the SH specific
> function context.

I made a proof of concept using  a global variable only. It is defined in sh.cc
and it is defined as extern in sh_loop.cc. It is set when splitting is done and
it is cleared when sh_loop_done is called, i.e. at the end of loop
optimization. Do we really need 'set_current_function'? Because so far it seems
a little excessive.

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