[Bug target/78118] xtensa: ICE in gcc-6.1.0/libgcc/libgcc2.c:1992:1: error: unrecognizable insn

[jcmvbkbc at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78118

--- Comment #3 from jcmvbkbc at gcc dot gnu.org ---
Created attachment 39936
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39936&action=edit
tentative patch