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[stack]: Move stack alignment check to expand_stack_alignment

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: "GCC Patches" <gcc-patches at gcc dot gnu dot org>, "Ye, Joey" <joey dot ye at intel dot com>, "Guo, Xuepeng" <xuepeng dot guo at intel dot com>
Date: Fri, 30 May 2008 11:02:18 -0700
Subject: [stack]: Move stack alignment check to expand_stack_alignment

Hi,

Stack alignment check isn't target specific. I am checking
this patch into stack branch.

Thanks.


-- 
H.J.
---
2008-05-30  H.J. Lu  <hongjiu.lu@intel.com>

	* defaults.h (INCOMING_STACK_BOUNDARY): New.

	* cfgexpand.c (expand_stack_alignment): Call
	targetm.calls.update_stack_boundary to update stack boundary
	if needed.  Check if stack alignment is needed.

	* target.h (gcc_target): Add update_stack_boundary.

	* target-def.h (TARGET_UPDATE_STACK_BOUNDARY): New.
	(TARGET_CALLS): Add TARGET_UPDATE_STACK_BOUNDARY.

	* config/i386/i386.c (ix86_update_stack_boundary): New.
	(ix86_get_drap_rtx): Likewise.
	(TARGET_UPDATE_STACK_BOUNDARY): Likewise.
	(ix86_handle_drap): Removed.
	(TARGET_GET_DRAP_RTX): Replace ix86_handle_drap with
	ix86_get_drap_rtx.

	* doc/tm.texi (INCOMING_STACK_BOUNDARY): New.
	(TARGET_UPDATE_STACK_BOUNDARY): Likewise.
	(TARGET_GET_DRAP_RTX): Updated.

Attachment: s.txt
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