On Fri, Jul 30, 2021 at 8:40 AM Richard Sandiford
wrote:
>
> "H.J. Lu via Gcc-patches" writes:
> > +/* Callback routine for store_by_pieces. Read GET_MODE_BITSIZE (MODE)
> > + bytes from constant string DATA + OFFSET and return it as target
> > + constant. If PREV isn't nullptr, it has the
"H.J. Lu via Gcc-patches" writes:
> +/* Callback routine for store_by_pieces. Read GET_MODE_BITSIZE (MODE)
> + bytes from constant string DATA + OFFSET and return it as target
> + constant. If PREV isn't nullptr, it has the RTL info from the
> + previous iteration. */
>
> +rtx
> +builti
1. Replace scalar_int_mode with fixed_size_mode in the by-pieces
infrastructure to allow non-integer mode.
2. Rename widest_int_mode_for_size to widest_fixed_size_mode_for_size
to return QI vector mode for memset.
3. Add op_by_pieces_d::smallest_fixed_size_mode_for_size to return the
smallest integ
