[Bug target/78642] [7 regression] ICE: invalid rtl sharing found in the insn on sparc

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78642

--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
It's copy_insn_1:

    case CLOBBER:
      /* Share clobbers of hard registers (like cc0), but do not share pseudo
reg
         clobbers or clobbers of hard registers that originated as pseudos.
         This is needed to allow safe register renaming.  */
      if (REG_P (XEXP (orig, 0)) && REGNO (XEXP (orig, 0)) <
FIRST_PSEUDO_REGISTER
          && ORIGINAL_REGNO (XEXP (orig, 0)) == REGNO (XEXP (orig, 0)))
        return orig;