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[PATCH PR66449]Fix ICE by using POINTER_PLUS_EXPR for pointers.

From: "Bin Cheng" <bin dot cheng at arm dot com>
To: <gcc-patches at gcc dot gnu dot org>
Date: Thu, 18 Jun 2015 18:12:42 +0800
Subject: [PATCH PR66449]Fix ICE by using POINTER_PLUS_EXPR for pointers.
Authentication-results: sourceware.org; auth=none

Hi,
This patch fixes ICE in PR66449 by using POINTER_PLUS_EXPR for pointers.
Bootstrap and test on x86_64.  Is it OK trunk?

Thanks,
bin

2015-06-18  Bin Cheng  <bin.cheng@arm.com>

	PR tree-optimization/66449
	* tree-ssa-loop-niter.c (loop_exits_before_overflow): Use
	POINTER_PLUS_EXPR for pointers.

gcc/testsuite/ChangeLog
2015-06-18  Bin Cheng  <bin.cheng@arm.com>

	PR tree-optimization/66449
	* gcc.dg/vect/pr66449.c: New.

Follow-Ups:
- RE: [PATCH PR66449]Fix ICE by using POINTER_PLUS_EXPR for pointers.
  - From: Bin Cheng

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