[Bug target/78633] [7 Regression] [SH] libgcc/fp-bit.c:944:1: error: invalid rtl sharing found in the insn

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78633

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
If the original insn that has the op.set_src rtx in it is not removed by the
splitter (which it seems it is not), and it is just expected to be removed
during DCE later, then doing copy_rtx is the right thing to do there, sharing
non-shareable RTXes between multiple instructions, even when it is just for a
couple of passes, is invalid.