https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77824
--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> --- I've done some poking around, and I see copies showing up frequently in some of GCC's own libraries, as well as in SPEC CPU2006 code. With a patched compiler to key on SSA_NAME for copies, I've seen that many of these copies are for induction variables, though not all. I have yet to find a case where handling the copies in SLSR changes the code. I'll plan to commit the obvious fix here. It doesn't seem practical to try to create a test case guaranteed to have copies in the code by the time we hit SLSR, though.
