Mercurial > hg > graal-compiler
view graal/com.oracle.graal.compiler.sparc/src/com/oracle/graal/compiler/sparc/SPARCNodeMatchRules.java @ 22935:29114298229f
SPARC-specific canonicalization of sub-int compare
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Tue, 03 Nov 2015 18:14:26 +0100 |
parents | 098c285cc3b8 |
children |
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/* * 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 com.oracle.graal.compiler.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 jdk.vm.ci.common.JVMCIError; import jdk.vm.ci.meta.LIRKind; import jdk.vm.ci.meta.Value; import jdk.vm.ci.sparc.SPARCKind; import com.oracle.graal.compiler.gen.NodeMatchRules; import com.oracle.graal.compiler.match.ComplexMatchResult; import com.oracle.graal.compiler.match.MatchRule; import com.oracle.graal.lir.LIRFrameState; import com.oracle.graal.lir.gen.LIRGeneratorTool; import com.oracle.graal.nodes.DeoptimizingNode; import com.oracle.graal.nodes.calc.SignExtendNode; import com.oracle.graal.nodes.calc.ZeroExtendNode; import com.oracle.graal.nodes.memory.Access; /** * 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; } else if (toBits > WORD.getSizeInBits()) { toKind = XWORD; } else if (toBits > HWORD.getSizeInBits()) { toKind = WORD; } else if (toBits > BYTE.getSizeInBits()) { toKind = HWORD; } switch (fromBits) { case 8: fromKind = BYTE; break; case 16: fromKind = HWORD; break; case 32: fromKind = WORD; break; default: throw JVMCIError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } SPARCKind localFromKind = fromKind; SPARCKind localToKind = toKind; return builder -> { Value v = getLIRGeneratorTool().emitSignExtendLoad(LIRKind.value(localFromKind), operand(access.getAddress()), getState(access)); return getArithmeticLIRGenerator().emitReinterpret(LIRKind.value(localToKind), v); }; } 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; } else if (toBits > WORD.getSizeInBits()) { toKind = XWORD; } else if (toBits > HWORD.getSizeInBits()) { toKind = WORD; } else if (toBits > BYTE.getSizeInBits()) { toKind = HWORD; } switch (fromBits) { case 8: fromKind = BYTE; break; case 16: fromKind = HWORD; break; case 32: fromKind = WORD; break; default: throw JVMCIError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } SPARCKind localFromKind = fromKind; SPARCKind localToKind = toKind; return builder -> { // Loads are always zero extending load Value v = getArithmeticLIRGenerator().emitLoad(LIRKind.value(localFromKind), operand(access.getAddress()), getState(access)); return getArithmeticLIRGenerator().emitReinterpret(LIRKind.value(localToKind), v); }; } @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(); } }