--- /dev/null	2021-01-19 17:38:25.908523431 +0000
+++ new/test/compiler/floatingpoint/8207838/libTestFloatSyncJNIArgs.c	2021-01-25 19:32:24.272976101 +0000
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2018 Red Hat, Inc. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include <jni.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Fletcher checksum. This is a nonlinear function which detects both */
+/* missing or otherwise incorrect arguments and arguments in the wrong */
+/* order. */
+static jfloat fcombine(jfloat f[], int len) {
+  int i;
+  jfloat sum = 0, sum_of_sums = 0;
+  for (i = 0; i < len; i++) {
+    sum += f[i];
+    sum_of_sums += sum;
+  }
+  return sum + sum_of_sums * sum;
+}
+
+static jdouble combine(jdouble f[], int len) {
+  int i;
+  double sum = 0, sum_of_sums = 0;
+  for (i = 0; i < len; i++) {
+    sum += f[i];
+    sum_of_sums += sum;
+  }
+  return sum + sum_of_sums * sum;
+}
+
+JNIEXPORT jfloat JNICALL Java_TestFloatSyncJNIArgs_combine15floats
+  (JNIEnv *env, jclass cls,
+   jfloat  f1, jfloat  f2, jfloat  f3, jfloat  f4,
+   jfloat  f5, jfloat  f6, jfloat  f7, jfloat  f8,
+   jfloat  f9, jfloat f10, jfloat f11, jfloat f12,
+   jfloat f13, jfloat f14, jfloat f15) {
+
+  jfloat f[15];
+  f[0] = f1; f[1] = f2; f[2] = f3; f[3] = f4; f[4] = f5;
+  f[5] = f6; f[6] = f7; f[7] = f8; f[8] = f9; f[9] = f10;
+  f[10] = f11; f[11] = f12; f[12] = f13; f[13] = f14; f[14] = f15;
+
+  return fcombine(f, sizeof f / sizeof f[0]);
+}
+
+JNIEXPORT jdouble JNICALL Java_TestFloatSyncJNIArgs_combine15doubles
+  (JNIEnv *env, jclass cls,
+   jdouble  f1, jdouble  f2, jdouble  f3, jdouble  f4,
+   jdouble  f5, jdouble  f6, jdouble  f7, jdouble  f8,
+   jdouble  f9, jdouble f10, jdouble f11, jdouble f12,
+   jdouble f13, jdouble f14, jdouble f15) {
+
+  jdouble f[15];
+  f[0] = f1; f[1] = f2; f[2] = f3; f[3] = f4; f[4] = f5;
+  f[5] = f6; f[6] = f7; f[7] = f8; f[8] = f9; f[9] = f10;
+  f[10] = f11; f[11] = f12; f[12] = f13; f[13] = f14; f[14] = f15;
+
+  return combine(f, sizeof f / sizeof f[0]);
+}
+
+
+#ifdef __cplusplus
+}
+#endif