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[C++ Patch] PR 15867

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Jason Merrill <jason at redhat dot com>
Date: Mon, 02 Jan 2012 23:24:51 +0100
Subject: [C++ Patch] PR 15867

Hi,

another old PR, about -Wredundant-decls (not in -Wall, nor in -Wextra, thus safe bootstrap-wise).

The issue is that we are emitting a bogus warning for a declaration followed by a specialization. The fix seems easy, just check ! DECL_TEMPLATE_SPECIALIZATION on newdecl; then however, don't miss redundant declarations for the specialization itself, thus the OR with DECL_TEMPLATE_SPECIALIZATION on olddecl. The testcase checks both situations.

Tested x86_64-linux.

Thanks,
Paolo.

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