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diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpn/generic/matrix22_mul1_inverse_vector.c b/Build/source/libs/gmp/gmp-6.0.0/mpn/generic/matrix22_mul1_inverse_vector.c
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+/* matrix22_mul1_inverse_vector.c
+
+ THE FUNCTIONS IN THIS FILE ARE INTERNAL WITH MUTABLE INTERFACES. IT IS ONLY
+ SAFE TO REACH THEM THROUGH DOCUMENTED INTERFACES. IN FACT, IT IS ALMOST
+ GUARANTEED THAT THEY'LL CHANGE OR DISAPPEAR IN A FUTURE GNU MP RELEASE.
+
+Copyright 2008, 2010 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+or
+
+ * the GNU General Public License as published by the Free Software
+ Foundation; either version 2 of the License, or (at your option) any
+ later version.
+
+or both in parallel, as here.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library. If not,
+see https://www.gnu.org/licenses/. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "longlong.h"
+
+/* Sets (r;b) = M^{-1}(a;b), with M^{-1} = (u11, -u01; -u10, u00) from
+ the left. Uses three buffers, to avoid a copy. */
+mp_size_t
+mpn_matrix22_mul1_inverse_vector (const struct hgcd_matrix1 *M,
+ mp_ptr rp, mp_srcptr ap, mp_ptr bp, mp_size_t n)
+{
+ mp_limb_t h0, h1;
+
+ /* Compute (r;b) <-- (u11 a - u01 b; -u10 a + u00 b) as
+
+ r = u11 * a
+ r -= u01 * b
+ b *= u00
+ b -= u10 * a
+ */
+
+ h0 = mpn_mul_1 (rp, ap, n, M->u[1][1]);
+ h1 = mpn_submul_1 (rp, bp, n, M->u[0][1]);
+ ASSERT (h0 == h1);
+
+ h0 = mpn_mul_1 (bp, bp, n, M->u[0][0]);
+ h1 = mpn_submul_1 (bp, ap, n, M->u[1][0]);
+ ASSERT (h0 == h1);
+
+ n -= (rp[n-1] | bp[n-1]) == 0;
+ return n;
+}