[Bug rtl-optimization/88311] [9 Regression] mlongcall indirections are optimised away (for binutils versions that don't support AS_PLTSEQ)

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88311

--- Comment #8 from Iain Sandoe <iains at gcc dot gnu.org> ---
I don't profess to grok the intracecies of combine, but ISTM that the stored
indirection needs the moral equivalent of "used", or else it should surely be a
candidate for removal.  After all, that's a useful optimisation in other cases.