[Bug target/32335] libgcc build failure, ICE in cselib_record_set, at cselib.c:1508

["zadeck at naturalbridge dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #6 from zadeck at naturalbridge dot com  2007-06-17 14:01 -------
Subject: Re:  libgcc build failure, ICE in cselib_record_set,
 at cselib.c:1508

rask at sygehus dot dk wrote:
> ------- Comment #5 from rask at sygehus dot dk  2007-06-17 08:43 -------
> I agree that the insn is invalid. It probably should be something like this:
>
>  (parallel [
>              (set (reg:PSI 7 fb)
>                  (mem:PSI (reg:PSI 7 fb) [0 S4 A8]))
>              (set (reg:PSI 8 sp)
>                  (plus:PSI (reg:PSI 7 fb)
>                      (const_int 2 [0x2])))
>              (return)
>          ])
>
> I.e. one set of sp and fb each. The faulty pattern is named "epilogue_exitd".
> The two patterns "prologue_enter_16" and "prologue_enter_24" are also broken in
> that they use 
> (parallel [
>     ... (pre_dec (SP_REGNO))
>     (set (SP_REGNO) ...)
> ])
> which is just another invalid use of PARALLEL. DJ?
>
> On the AVR, my bets are on the define_insn "call_prologue_saves" with two sets
> of (reg:HI SP_REG) inside the implicit parallel.
>
>
>   
i assume that you will resolve this with the port maintainers and
contact me when you hit the next dataflow related problem.

Good luck.

Kenny


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32335