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C++ PATCH for c++/84424, ICE with constexpr and __builtin_shuffle.

From: Jason Merrill <jason at redhat dot com>
To: gcc-patches List <gcc-patches at gcc dot gnu dot org>
Date: Thu, 22 Feb 2018 17:50:22 -0500
Subject: C++ PATCH for c++/84424, ICE with constexpr and __builtin_shuffle.
Authentication-results: sourceware.org; auth=none

We were crashing when checking whether the value being created for v
is constant, because TYPE_FIELDS is invalid for VECTOR_TYPE.  But it's
easy enough to just return false for a partially-initialized vector.

Tested x86_64-pc-linux-gnu, applying to trunk.

Attachment: 84424.diff
Description: Text document

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