1 /*
   2  * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 
  26 package org.graalvm.compiler.hotspot.aarch64;
  27 
  28 import org.graalvm.compiler.core.aarch64.AArch64LoweringProviderMixin;
  29 import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
  30 import org.graalvm.compiler.debug.DebugHandlersFactory;
  31 import org.graalvm.compiler.graph.Node;
  32 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  33 import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
  34 import org.graalvm.compiler.hotspot.meta.DefaultHotSpotLoweringProvider;
  35 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
  36 import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider;
  37 import org.graalvm.compiler.nodes.calc.FloatConvertNode;
  38 import org.graalvm.compiler.nodes.calc.IntegerDivRemNode;
  39 import org.graalvm.compiler.nodes.calc.RemNode;
  40 import org.graalvm.compiler.nodes.spi.LoweringTool;
  41 import org.graalvm.compiler.options.OptionValues;
  42 import org.graalvm.compiler.replacements.aarch64.AArch64FloatArithmeticSnippets;
  43 import org.graalvm.compiler.replacements.aarch64.AArch64IntegerArithmeticSnippets;
  44 
  45 import jdk.vm.ci.code.TargetDescription;
  46 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
  47 import jdk.vm.ci.meta.MetaAccessProvider;
  48 
  49 public class AArch64HotSpotLoweringProvider extends DefaultHotSpotLoweringProvider implements AArch64LoweringProviderMixin {
  50 
  51     private AArch64IntegerArithmeticSnippets integerArithmeticSnippets;
  52     private AArch64FloatArithmeticSnippets floatArithmeticSnippets;
  53 
  54     public AArch64HotSpotLoweringProvider(HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, ForeignCallsProvider foreignCalls, HotSpotRegistersProvider registers,
  55                     HotSpotConstantReflectionProvider constantReflection, TargetDescription target) {
  56         super(runtime, metaAccess, foreignCalls, registers, constantReflection, target);
  57     }
  58 
  59     @Override
  60     public void initialize(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, GraalHotSpotVMConfig config) {
  61         integerArithmeticSnippets = new AArch64IntegerArithmeticSnippets(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget());
  62         floatArithmeticSnippets = new AArch64FloatArithmeticSnippets(options, factories, providers, providers.getSnippetReflection(), providers.getCodeCache().getTarget());
  63         super.initialize(options, factories, providers, config);
  64     }
  65 
  66     @Override
  67     public void lower(Node n, LoweringTool tool) {
  68         if (n instanceof IntegerDivRemNode) {
  69             integerArithmeticSnippets.lower((IntegerDivRemNode) n, tool);
  70         } else if (n instanceof RemNode) {
  71             floatArithmeticSnippets.lower((RemNode) n, tool);
  72         } else if (n instanceof FloatConvertNode) {
  73             // AMD64 has custom lowerings for ConvertNodes, HotSpotLoweringProvider does not expect
  74             // to see a ConvertNode and throws an error, just do nothing here.
  75         } else {
  76             super.lower(n, tool);
  77         }
  78     }
  79 }