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Re: new allocator: df must use FRAME_POINTER_REQUIRED
- To: Denis Chertykov <denisc at overta dot ru>
- Subject: Re: new allocator: df must use FRAME_POINTER_REQUIRED
- From: Richard Henderson <rth at redhat dot com>
- Date: Mon, 5 Feb 2001 14:40:40 -0800
- Cc: gcc-patches at gcc dot gnu dot org, Daniel Berlin <dberlin at redhat dot com>
- References: <200102052028.XAA31163@tigris.overta.ru>
On Mon, Feb 05, 2001 at 11:28:31PM +0300, Denis Chertykov wrote:
> * df.c (df_lr_global_compute): Use FRAME_POINTER_REQUIRED for
> computing lr_in/lr_out.
This file is missing all sorts of stuff for global register life.
See mark_regs_live_at_end and calculate_global_regs_live in flow.c.
> + for (i = 0; i < POINTER_SIZE / BITS_PER_WORD; ++i)
This should instead iterate over HARD_REGNO_NREGS for Pmode.
r~