--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements.amd64/src/org/graalvm/compiler/replacements/amd64/AMD64MathSubstitutions.java	2019-03-09 03:58:19.973611012 +0100
+++ /dev/null	2017-11-16 08:17:56.803999947 +0100
@@ -1,85 +0,0 @@
-/*
- * Copyright (c) 2011, 2018, Oracle and/or its affiliates. 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.
- */
-
-
-package org.graalvm.compiler.replacements.amd64;
-
-import org.graalvm.compiler.api.replacements.ClassSubstitution;
-import org.graalvm.compiler.api.replacements.MethodSubstitution;
-import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
-import org.graalvm.compiler.graph.Node.ConstantNodeParameter;
-import org.graalvm.compiler.graph.Node.NodeIntrinsic;
-import org.graalvm.compiler.nodes.extended.ForeignCallNode;
-import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode;
-import org.graalvm.compiler.replacements.nodes.UnaryMathIntrinsicNode.UnaryOperation;
-
-// JaCoCo Exclude
-
-/**
- * Substitutions for some {@link java.lang.Math} methods that leverage AMD64 instructions for
- * selected input values.
- */
-@ClassSubstitution(Math.class)
-public class AMD64MathSubstitutions {
-
-    private static final double PI_4 = Math.PI / 4;
-
-    // NOTE on snippets below:
-    // Math.sin(), .cos() and .tan() guarantee a value within 1 ULP of the
-    // exact result, but x87 trigonometric FPU instructions are only that
-    // accurate within [-pi/4, pi/4]. Examine the passed value and provide
-    // a slow path for inputs outside of that interval.
-
-    @MethodSubstitution
-    public static double sin(double x) {
-        if (Math.abs(x) < PI_4) {
-            return UnaryMathIntrinsicNode.compute(x, UnaryOperation.SIN);
-        } else {
-            return callDouble1(UnaryOperation.SIN.foreignCallDescriptor, x);
-        }
-    }
-
-    @MethodSubstitution
-    public static double cos(double x) {
-        if (Math.abs(x) < PI_4) {
-            return UnaryMathIntrinsicNode.compute(x, UnaryOperation.COS);
-        } else {
-            return callDouble1(UnaryOperation.COS.foreignCallDescriptor, x);
-        }
-    }
-
-    @MethodSubstitution
-    public static double tan(double x) {
-        if (Math.abs(x) < PI_4) {
-            return UnaryMathIntrinsicNode.compute(x, UnaryOperation.TAN);
-        } else {
-            return callDouble1(UnaryOperation.TAN.foreignCallDescriptor, x);
-        }
-    }
-
-    @NodeIntrinsic(value = ForeignCallNode.class)
-    private static native double callDouble1(@ConstantNodeParameter ForeignCallDescriptor descriptor, double value);
-
-    @NodeIntrinsic(value = ForeignCallNode.class)
-    private static native double callDouble2(@ConstantNodeParameter ForeignCallDescriptor descriptor, double a, double b);
-}