| /* |
| * Copyright (c) 2009, 2015, 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.core.sparc; |
| |
| import static jdk.vm.ci.sparc.SPARCKind.BYTE; |
| import static jdk.vm.ci.sparc.SPARCKind.HWORD; |
| import static jdk.vm.ci.sparc.SPARCKind.WORD; |
| import static jdk.vm.ci.sparc.SPARCKind.XWORD; |
| |
| import org.graalvm.compiler.core.common.LIRKind; |
| import org.graalvm.compiler.core.gen.NodeMatchRules; |
| import org.graalvm.compiler.core.match.ComplexMatchResult; |
| import org.graalvm.compiler.core.match.MatchRule; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.lir.LIRFrameState; |
| import org.graalvm.compiler.lir.gen.LIRGeneratorTool; |
| import org.graalvm.compiler.nodes.DeoptimizingNode; |
| import org.graalvm.compiler.nodes.calc.SignExtendNode; |
| import org.graalvm.compiler.nodes.calc.ZeroExtendNode; |
| import org.graalvm.compiler.nodes.memory.Access; |
| |
| import jdk.vm.ci.sparc.SPARCKind; |
| |
| /** |
| * This class implements the SPARC specific portion of the LIR generator. |
| */ |
| public class SPARCNodeMatchRules extends NodeMatchRules { |
| |
| public SPARCNodeMatchRules(LIRGeneratorTool gen) { |
| super(gen); |
| } |
| |
| protected LIRFrameState getState(Access access) { |
| if (access instanceof DeoptimizingNode) { |
| return state((DeoptimizingNode) access); |
| } |
| return null; |
| } |
| |
| private ComplexMatchResult emitSignExtendMemory(Access access, int fromBits, int toBits) { |
| assert fromBits <= toBits && toBits <= 64; |
| SPARCKind toKind = null; |
| SPARCKind fromKind = null; |
| if (fromBits == toBits) { |
| return null; |
| } |
| toKind = toBits > 32 ? XWORD : WORD; |
| switch (fromBits) { |
| case 8: |
| fromKind = BYTE; |
| break; |
| case 16: |
| fromKind = HWORD; |
| break; |
| case 32: |
| fromKind = WORD; |
| break; |
| default: |
| throw GraalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); |
| } |
| SPARCKind localFromKind = fromKind; |
| SPARCKind localToKind = toKind; |
| return builder -> { |
| return getLIRGeneratorTool().emitSignExtendLoad(LIRKind.value(localFromKind), LIRKind.value(localToKind), operand(access.getAddress()), getState(access)); |
| }; |
| } |
| |
| private ComplexMatchResult emitZeroExtendMemory(Access access, int fromBits, int toBits) { |
| assert fromBits <= toBits && toBits <= 64; |
| SPARCKind toKind = null; |
| SPARCKind fromKind = null; |
| if (fromBits == toBits) { |
| return null; |
| } |
| toKind = toBits > 32 ? XWORD : WORD; |
| switch (fromBits) { |
| case 8: |
| fromKind = BYTE; |
| break; |
| case 16: |
| fromKind = HWORD; |
| break; |
| case 32: |
| fromKind = WORD; |
| break; |
| default: |
| throw GraalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); |
| } |
| SPARCKind localFromKind = fromKind; |
| SPARCKind localToKind = toKind; |
| return builder -> { |
| // Loads are always zero extending load |
| return getLIRGeneratorTool().emitZeroExtendLoad(LIRKind.value(localFromKind), LIRKind.value(localToKind), operand(access.getAddress()), getState(access)); |
| }; |
| } |
| |
| @MatchRule("(SignExtend Read=access)") |
| @MatchRule("(SignExtend FloatingRead=access)") |
| public ComplexMatchResult signExtend(SignExtendNode root, Access access) { |
| return emitSignExtendMemory(access, root.getInputBits(), root.getResultBits()); |
| } |
| |
| @MatchRule("(ZeroExtend Read=access)") |
| @MatchRule("(ZeroExtend FloatingRead=access)") |
| public ComplexMatchResult zeroExtend(ZeroExtendNode root, Access access) { |
| return emitZeroExtendMemory(access, root.getInputBits(), root.getResultBits()); |
| } |
| |
| @Override |
| public SPARCLIRGenerator getLIRGeneratorTool() { |
| return (SPARCLIRGenerator) super.getLIRGeneratorTool(); |
| } |
| |
| protected SPARCArithmeticLIRGenerator getArithmeticLIRGenerator() { |
| return (SPARCArithmeticLIRGenerator) getLIRGeneratorTool().getArithmetic(); |
| } |
| } |