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[Ada] Fix problem returning unaligned object

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Robert Dewar <dewar at adacore dot com>
Date: Wed, 28 May 2008 15:21:46 +0200
Subject: [Ada] Fix problem returning unaligned object

A compile time crash could result
from returning an array object which was not aligned to the alignment of the
array type, e.g. when a component clause was present. This patch fixes the
error by copying such results into a temporary first.

See gnat.dg/frunaligned.adb

Tested on i686-pc-linux-gnu, committed on trunk

2008-05-28  Robert Dewar  <dewar@adacore.com>

	* exp_ch5.adb:
	(Expand_Simple_Function_Return): Copy unaligned result into temporary

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