[51/77] Use opt_scalar_int_mode when iterating over integer modes

[Jeff Law]

On 07/13/2017 02:56 AM, Richard Sandiford wrote:
> This patch uses opt_scalar_int_mode rather than machine_mode
> when iterating over scalar_int_modes, in cases where that helps
> with future patches.  (Using machine_mode is still OK in places
> that don't really care about the mode being a scalar integer.)
> 
> 2017-07-13  Richard Sandiford  <richard.sandiford@linaro.org>
> 	    Alan Hayward  <alan.hayward@arm.com>
> 	    David Sherwood  <david.sherwood@arm.com>
> 
> gcc/
> 	* cse.c (cse_insn): Use opt_scalar_int_mode for the mode iterator.
> 	* explow.c (hard_function_value): Likewise.
> 	* expmed.c (init_expmed_one_mode): Likewise.
> 	(extract_fixed_bit_field_1): Likewise.  Move the convert_to_mode
> 	call outside the loop.
> 	* expr.c (alignment_for_piecewise_move): Use opt_scalar_int_mode
> 	for the mode iterator.  Require the mode specified by max_pieces
> 	to exist.
> 	(emit_block_move_via_movmem): Use opt_scalar_int_mode for the
> 	mode iterator.
> 	(copy_blkmode_to_reg): Likewise.
> 	(set_storage_via_setmem): Likewise.
> 	* optabs.c (prepare_cmp_insn): Likewise.
> 	* rtlanal.c (init_num_sign_bit_copies_in_rep): Likewise.
> 	* stor-layout.c (finish_bitfield_representative): Likewise.
> 
> gcc/fortran/
> 	* trans-types.c (gfc_init_kinds): Use opt_scalar_int_mode for
> 	the mode iterator.
>
OK.
jeff