Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/FloatMulNode.java @ 11883:673f93db4adc
Merge.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 02 Oct 2013 21:40:29 +0200 |
parents | da9db8331658 ee88780346a4 |
children | 34c07ef28bc9 |
line wrap: on
line source
/* * Copyright (c) 2011, 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 com.oracle.graal.nodes.calc; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; @NodeInfo(shortName = "*") public final class FloatMulNode extends FloatArithmeticNode implements Canonicalizable { public FloatMulNode(Kind kind, ValueNode x, ValueNode y, boolean isStrictFP) { super(kind, x, y, isStrictFP); } public Constant evalConst(Constant... inputs) { assert inputs.length == 2; if (kind() == Kind.Float) { return Constant.forFloat(inputs[0].asFloat() * inputs[1].asFloat()); } else { assert kind() == Kind.Double; return Constant.forDouble(inputs[0].asDouble() * inputs[1].asDouble()); } } @Override public Node canonical(CanonicalizerTool tool) { if (x().isConstant() && !y().isConstant()) { return graph().unique(new FloatMulNode(kind(), y(), x(), isStrictFP())); } if (x().isConstant()) { return ConstantNode.forPrimitive(evalConst(x().asConstant(), y().asConstant()), graph()); } return this; } @Override public void generate(ArithmeticLIRGenerator gen) { Value op1 = gen.operand(x()); Value op2 = gen.operand(y()); if (!y().isConstant() && !FloatAddNode.livesLonger(this, y(), gen)) { Value op = op1; op1 = op2; op2 = op; } gen.setResult(this, gen.emitMul(op1, op2)); } }