[Bug lto/64374] [5 Regression] LTO ICE in extract_insn, at recog.c:2327

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64374

--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34855
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34855&action=edit
gcc5-pr64374.patch

Untested fix.

Unfortunately I really can't reproduce it now, so can't verify the patch.
The testcase in #c0 looks very much broken, lots of undefined results, missing
f1 definition, so it really can't link successfully.  But I don't get an ICE at
all here.