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[Ada] Undefined symbol with interface types

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Javier Miranda <miranda at adacore dot com>
Date: Mon, 2 May 2016 05:58:01 -0400
Subject: [Ada] Undefined symbol with interface types
Authentication-results: sourceware.org; auth=none

Compiling with optimizations enabled the linker may report undefined
symbols of the form "xxxT<number>s" associated with types that implement
interface types. This issue was introduced on 2016-01-16 as part of
improving the support of subprograms that are inlined across units
with optimization.

No small reproducer available.

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

2016-05-02  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Make_Tags): Do not generate the
	external name of interface tags adding the suffix counter since
	it causes problems at link time when the IP routines are inlined
	across units with optimization.

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