[Bug target/114639] [riscv] ICE in create_pre_exit, at mode-switching.cc:451

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114639

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
            /* If we didn't see a full return value copy, verify that there
               is a plausible reason for this.  If some, but not all of the
               return register is likely spilled, we can expect that there
               is a copy for the likely spilled part.  */
            gcc_assert (!nregs
                        || forced_late_switch
                        || short_block
                        || !(targetm.class_likely_spilled_p
                             (REGNO_REG_CLASS (ret_start)))
                        || nregs != REG_NREGS (ret_reg)
                        /* For multi-hard-register floating point
                           values, sometimes the likely-spilled part
                           is ordinarily copied first, then the other
                           part is set with an arithmetic operation.
                           This doesn't actually cause reload
                           failures, so let it pass.  */
                        || (GET_MODE_CLASS (GET_MODE (ret_reg)) != MODE_INT
                            && nregs != 1));