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Re: [RS6000] Fix PR12817

From: David Edelsohn <dje at watson dot ibm dot com>
To: Geoffrey Keating <geoffk at apple dot com>, gcc-patches at gcc dot gnu dot org, Dale Johannesen <dalej at apple dot com>, Stan Shebs <shebs at apple dot com>
Date: Sat, 27 Nov 2004 16:37:26 -0500
Subject: Re: [RS6000] Fix PR12817
References: <20041126101943.GA14779@bubble.modra.org> <200411262331.iAQNVwD25464@makai.watson.ibm.com> <20041127000000.GD14779@bubble.modra.org> <267F2E56-4026-11D9-B3D4-000A95B1F520@apple.com> <20041127063203.GG14779@bubble.modra.org>

	* config/rs6000/rs6000.h (WORLD_SAVE_P): Define.
	* config/rs6000/darwin.h (WORLD_SAVE_P): Define.
	* config/rs6000/rs6000.c (compute_save_world_info): Use WORLD_SAVE_P
	to allow non-darwin ABIs to optimize away code.
	(rs6000_emit_prologue, rs6000_emit_epilogue): Likewise.

This looks good to me.  Hopefully Dale or Stan or Geoff will approve the
darwin.h part quickly.

Thanks, David

Follow-Ups:
- Re: [RS6000] Fix PR12817
  - From: Mike Stump
- Re: [RS6000] Fix PR12817
  - From: Dale Johannesen
- Re: [RS6000] Fix PR12817
  - From: Geoffrey Keating

References:
- [RS6000] Fix PR12817
  - From: Alan Modra
- Re: [RS6000] Fix PR12817
  - From: David Edelsohn
- Re: [RS6000] Fix PR12817
  - From: Alan Modra
- Re: [RS6000] Fix PR12817
  - From: Geoffrey Keating
- Re: [RS6000] Fix PR12817
  - From: Alan Modra

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