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Re: removing unused NOTE_INSN notes?
- To: Jan Hubicka <jh at suse dot cz>
- Subject: Re: removing unused NOTE_INSN notes?
- From: Daniel Berlin <dan at cgsoftware dot com>
- Date: Mon, 17 Sep 2001 10:11:45 -0400 (EDT)
- cc: <gcc at gcc dot gnu dot org>, <rth at cygnus dot com>
On Mon, 17 Sep 2001, Jan Hubicka wrote:
> Hi,
> I am looking about what NOTE_INSN notes are still in use. There appears
> to be some of these unused. Are there any plans to use them, or
> should we just remove them?
>
> After my quick survey following ones are at my list:
> /* Start/end of a live range region, where pseudos allocated on the stack
> can be allocated to temporary registers. Uses NOTE_RANGE_INFO. */
> NOTE_INSN_RANGE_BEG,
> NOTE_INSN_RANGE_END,
These are unused, and there are smarter ways to record the info anyway, so
i say we remove them.
>
> /* Record which registers are currently live. Uses NOTE_LIVE_INFO. */
> NOTE_INSN_LIVE,
>
>
> Honza
>