--- /dev/null	2017-11-16 08:17:56.803999947 +0100
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/nodes/FusedMultiplyAddNode.java	2019-05-16 21:17:56.852291092 +0200
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2019, 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.nodes;
+
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
+
+import org.graalvm.compiler.core.common.type.FloatStamp;
+import org.graalvm.compiler.core.common.type.Stamp;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.graph.spi.CanonicalizerTool;
+import org.graalvm.compiler.lir.gen.ArithmeticLIRGeneratorTool;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.ConstantNode;
+import org.graalvm.compiler.nodes.NodeView;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.calc.TernaryNode;
+import org.graalvm.compiler.nodes.spi.ArithmeticLIRLowerable;
+import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
+
+import jdk.vm.ci.meta.JavaConstant;
+import jdk.vm.ci.meta.JavaKind;
+import org.graalvm.compiler.serviceprovider.GraalServices;
+
+@NodeInfo(cycles = CYCLES_2, size = SIZE_1)
+public final class FusedMultiplyAddNode extends TernaryNode implements ArithmeticLIRLowerable {
+
+    public static final NodeClass<FusedMultiplyAddNode> TYPE = NodeClass.create(FusedMultiplyAddNode.class);
+
+    public FusedMultiplyAddNode(ValueNode a, ValueNode b, ValueNode c) {
+        super(TYPE, computeStamp(a.stamp(NodeView.DEFAULT), b.stamp(NodeView.DEFAULT), c.stamp(NodeView.DEFAULT)), a, b, c);
+        assert a.getStackKind().isNumericFloat();
+        assert b.getStackKind().isNumericFloat();
+        assert c.getStackKind().isNumericFloat();
+    }
+
+    @Override
+    public Stamp foldStamp(Stamp stampX, Stamp stampY, Stamp stampZ) {
+        return computeStamp(stampX, stampY, stampZ);
+    }
+
+    private static Stamp computeStamp(Stamp stampX, Stamp stampY, Stamp stampZ) {
+        Stamp m = FloatStamp.OPS.getMul().foldStamp(stampX, stampY);
+        return FloatStamp.OPS.getAdd().foldStamp(m, stampZ);
+    }
+
+    @Override
+    public ValueNode canonical(CanonicalizerTool tool, ValueNode a, ValueNode b, ValueNode c) {
+        if (a.isConstant() && b.isConstant() && c.isConstant()) {
+            JavaConstant ca = a.asJavaConstant();
+            JavaConstant cb = b.asJavaConstant();
+            JavaConstant cc = c.asJavaConstant();
+
+            ValueNode res;
+            if (a.getStackKind() == JavaKind.Float) {
+                res = ConstantNode.forFloat(GraalServices.fma(ca.asFloat(), cb.asFloat(), cc.asFloat()));
+            } else {
+                assert a.getStackKind() == JavaKind.Double;
+                res = ConstantNode.forDouble(GraalServices.fma(ca.asDouble(), cb.asDouble(), cc.asDouble()));
+            }
+            return res;
+        }
+        return this;
+    }
+
+    @Override
+    public void generate(NodeLIRBuilderTool builder, ArithmeticLIRGeneratorTool gen) {
+        builder.setResult(this, gen.emitFusedMultiplyAdd(builder.operand(getX()), builder.operand(getY()), builder.operand(getZ())));
+    }
+}