7057978: improve robustness of c1 ARM back-end wrt non encodable constants Summary: ARM only, avoid assertion failures for huge constants generated by C1 shared code Reviewed-by: never, vladidan

7089632: assert(machtmp->outcnt() == 1) failed: expected for a MachTemp Summary: Replace assert with check to delete MachTemp nodes only when they are really dead. Reviewed-by: never

7089709: type "jushort" not found Reviewed-by: kvn, twisti

7088955: add C2 IR support to the SA Reviewed-by: kvn