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Re: [atom]: PATCH: reg_mentioned_by_mem_p with DF
- From: Jakub Jelinek <jakub at redhat dot com>
- To: "Ye, Joey" <joey dot ye at intel dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Steven Bosscher <stevenb dot gcc at gmail dot com>, "Lu, Hongjiu" <hongjiu dot lu at intel dot com>, "Guo, Xuepeng" <xuepeng dot guo at intel dot com>, Richard Guenther <richard dot guenther at gmail dot com>
- Date: Mon, 30 Mar 2009 09:07:54 +0200
- Subject: Re: [atom]: PATCH: reg_mentioned_by_mem_p with DF
- References: <F2363DE71B5050498545B523673042DE01A5336C3D@pdsmsx503.ccr.corp.intel.com>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Mon, Mar 30, 2009 at 02:43:52PM +0800, Ye, Joey wrote:
> Reimplement reg_mentioned_by_mem_p with DF, after Steven's
> comments.
>
> Thanks - Joey
>
> * rtlanal.c (reg_mentioned_by_mem_p_1): Removed.
> (reg_mentioned_by_mem_p): Re-implement with DF.
As it is used by insn splitter and splitting can also happen during final
when DF isn't available, I don't see how this is a safe thing to do.
Jakub