Hi Ramana, Thanks for the review and approval.
>> Please update the ARM backend with the new attribute too >> (define_insn "crypto_vmullp64" Its already been updated in the patch posted at:- https://gcc.gnu.org/ml/gcc-patches/2017-03/msg00504.html >> Ok with that change and checking that you can build cc1 for arm-none-eabi . Checked and built the arm toolchain successfully with the patch. Patch has been committed at:- https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=249433 Thanks, Naveen