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[Ada] Front-end layout in a generic unit

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Ed Schonberg <schonberg at adacore dot com>
Date: Wed, 22 Feb 2012 08:47:30 -0500
Subject: [Ada] Front-end layout in a generic unit

Front-end layout must not be performed within a generic unit, because the
types therein will be recreated in an instance, and their characteristics are
partially unknown when analyzing a generic unit. Previously only generic types
themselves were excluded from layout determination.

Patch allows compilation of some run-time units when Fronend_Layout is true.

Tested on x86_64-pc-linux-gnu, committed on trunk

2012-02-22  Ed Schonberg  <schonberg@adacore.com>

	* freeze.adb (Freeze_Entity): Do not perform type layout within
	a generic unit.

Attachment: difs
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