"Pinski, Andrew" writes:
> +;; The POP instruction is special as it does not take into account the upper
> +;; 32bits and is documented that way.
> +(define_insn "*popcountdi2_trunc"
> + [(set (match_operand:SI 0 "register_operand" "=d")
> + (popcount:SI (truncate:SI (match_operand:DI 1 "re
Hi,
The Octeon pop instruction does not take into account the upper 32bits of the
64bit register, so its usage can be optimized when there is a truncation right
before the instruction.
This patch implements this small optimization.
OK? Bootstrapped and tested on MIPS64-linux-gnu (Octeon) wit
