Add libgmp 6.2.0 to third_party
Don't build it yet. That will come in the next review.
Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/tests/mpn/toom-sqr-shared.h b/third_party/gmp/tests/mpn/toom-sqr-shared.h
new file mode 100644
index 0000000..e57ac8d
--- /dev/null
+++ b/third_party/gmp/tests/mpn/toom-sqr-shared.h
@@ -0,0 +1,117 @@
+/* Test for various Toom squaring functions.
+
+Copyright 2009, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite 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 a copy of the GNU General Public License along with
+the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+/* Main file is expected to define mpn_toomN_mul, mpn_toomN_sqr_itch,
+ * MIN_AN, MAX_AN and then include this file. */
+
+#ifndef COUNT
+#define COUNT 2000
+#endif
+
+int
+main (int argc, char **argv)
+{
+ mp_ptr ap, refp, pp, scratch;
+ int count = COUNT;
+ int test;
+ gmp_randstate_ptr rands;
+ TMP_DECL;
+ TMP_MARK;
+
+ TESTS_REPS (count, argv, argc);
+
+ tests_start ();
+
+ if (MAX_AN > MIN_AN) {
+ rands = RANDS;
+
+ ap = TMP_ALLOC_LIMBS (MAX_AN);
+ refp = TMP_ALLOC_LIMBS (MAX_AN * 2);
+ pp = 1 + TMP_ALLOC_LIMBS (MAX_AN * 2 + 2);
+ scratch
+ = 1+TMP_ALLOC_LIMBS (mpn_toomN_sqr_itch (MAX_AN) + 2);
+
+ for (test = 0; test < count; test++)
+ {
+ mp_size_t an;
+ mp_size_t itch;
+ mp_limb_t p_before, p_after, s_before, s_after;
+
+ an = MIN_AN
+ + gmp_urandomm_ui (rands, MAX_AN - MIN_AN);
+
+ mpn_random2 (ap, an);
+ mpn_random2 (pp-1, an * 2 + 2);
+ p_before = pp[-1];
+ p_after = pp[an * 2];
+
+ itch = mpn_toomN_sqr_itch (an);
+ ASSERT_ALWAYS (itch <= mpn_toomN_sqr_itch (MAX_AN));
+ mpn_random2 (scratch-1, itch+2);
+ s_before = scratch[-1];
+ s_after = scratch[itch];
+
+ mpn_toomN_sqr (pp, ap, an, scratch);
+ refmpn_mul (refp, ap, an, ap, an);
+ if (pp[-1] != p_before || pp[an * 2] != p_after
+ || scratch[-1] != s_before || scratch[itch] != s_after
+ || mpn_cmp (refp, pp, an * 2) != 0)
+ {
+ printf ("ERROR in test %d, an = %d\n",
+ test, (int) an);
+ if (pp[-1] != p_before)
+ {
+ printf ("before pp:"); mpn_dump (pp -1, 1);
+ printf ("keep: "); mpn_dump (&p_before, 1);
+ }
+ if (pp[an * 2] != p_after)
+ {
+ printf ("after pp:"); mpn_dump (pp + an * 2, 1);
+ printf ("keep: "); mpn_dump (&p_after, 1);
+ }
+ if (scratch[-1] != s_before)
+ {
+ printf ("before scratch:"); mpn_dump (scratch-1, 1);
+ printf ("keep: "); mpn_dump (&s_before, 1);
+ }
+ if (scratch[itch] != s_after)
+ {
+ printf ("after scratch:"); mpn_dump (scratch + itch, 1);
+ printf ("keep: "); mpn_dump (&s_after, 1);
+ }
+ mpn_dump (ap, an);
+ mpn_dump (pp, an * 2);
+ mpn_dump (refp, an * 2);
+
+ abort();
+ }
+ }
+ TMP_FREE;
+ }
+
+ tests_end ();
+ return 0;
+}