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Date: Mon, 20 Jun 2011 13:57:00 -0000
From: Bernd Schmidt <bernds@codesourcery.com>
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To: "H.J. Lu" <hjl.tools@gmail.com>
CC: "H.J. Lu" <hongjiu.lu@intel.com>, gcc-patches@gcc.gnu.org,  "H. Peter Anvin" <hpa@zytor.com>, Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: [x32] PATCH: Remove ix86_promote_function_mode
References: <20110620135115.GA11874@lucon.org>
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On 06/20/2011 03:51 PM, H.J. Lu wrote:
> Promote pointers to Pmode when passing/returning in registers is
> a security concern.

Whuh?

>     	* combine.c (cant_combine_insn_p): Check zero/sign extended
>     	hard registers.

This part is OK.


Bernd