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[Ada] Fix unexpected CE on conversion of integer to fixed

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 15:21:37 +0200
Subject: [Ada] Fix unexpected CE on conversion of integer to fixed

The computation of the required size for the multiplication needed
for conversion of integer to fixed could be one off in some cases
causing an unexpected constraint error exception. This patch corrects
that problem.

See gnat.dg/fixce.adb

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

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

	* exp_fixd.adb (Build_Multiply): Correct one-off error in computing
	size

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