https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119174
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #7)
> Commenting out TARGET_LRA_P in msp430.cc and gets us code that works:
> ```
> .L2:
> CMP.W R9, R10 { JL .L3
> ; start of epilogue
> ADD.W #2, R1
> POPM.W #2, r10
> RET
> .L3:
> MOV.W @R13+, R14
> MOV.W R13, @R1
> CALL R14
> ADD.W #1, R10
> MOV.W @R1, R13
> BR #.L2
>
> ```
>
> Not the best code as it should have been in R1 in the first place but code
> that definitely works.
Wait `MOV.W R13, @R1` is a store and `MOV.W @R1, R13` is also a store. so
my comment about being in R1 is incorrect but that is definitely doing the
right thing and spilling it into a stack location across the call.
