Re: [6/9] Pass REG changes through a new function

[Jeff Law]

On 05/18/2015 12:23 PM, Richard Sandiford wrote:

This patch adds a new function to set both the mode and regno
of a REG.  It makes sure that all REG PUT_MODE and SET_REGNO changes
go through this function.  There's a new PUT_MODE_RAW (analogous
to SET_REGNO_RAW) for the cases where the caller doesn't want that.

There's a small consistency fix: gen_rtx_REG was declared with
"unsigned" and defined with "unsigned int".  The latter is usual
GCC style.


gcc/
        * rtl.h (PUT_MODE_RAW): New macro.
        (PUT_REG_NOTE_KIND): Use it.
        (set_mode_and_regno): Declare.
        (gen_raw_REG): Change regno to "unsigned int".
        (gen_rtx_REG): Change "unsigned" to "unsigned int".
        (PUT_MODE): Forward to PUT_MODE_RAW for generators, otherwise
        use set_mode_and_regno to change the mode of registers.
        * gengenrtl.c (gendef): Use PUT_MODE_RAW.
        * emit-rtl.c (set_mode_and_regno): New function.
        (gen_raw_REG): Change regno to unsigned int.  Use set_mode_and_regno.
        * caller-save.c (reg_save_code): Use set_mode_and_regno.
        * expr.c (init_expr_target): Likewise.
        * ira.c (setup_prohibited_mode_move_regs): Likewise.
        * postreload.c (reload_cse_simplify_operands): Likewise.

OK.
jeff