> @defmac HARD_REGNO_NREGS (@var{regno}, @var{mode})
> A C expression for the number of consecutive hard registers, starting
> at register number @var{regno}, required to hold a value of mode
> [EMAIL PROTECTED]
> [EMAIL PROTECTED] This macro must never return zero, even if a register
> +cannot hold the requested mode - indicate that with HARD_REGNO_MODE_OK
> +and/or CANNOT_CHANGE_MODE_CLASS instead.
I find this somewhat unclear - It seems to imply that HARD_REGNO_NREGS may be
called even when HARD_REGNO_MODE_OK returns false.
How about:
This macro must return a nonzero value for all combinations permitted by
HARD_REGNO_MODE_OK and CANNOT_CHANGE_MODE_CLASS.
Paul
