| /* |
| * Copyright (c) 2013, 2016, 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.hotspot.sparc; |
| |
| import static org.graalvm.compiler.asm.sparc.SPARCAssembler.BPR; |
| import static org.graalvm.compiler.asm.sparc.SPARCAssembler.Annul.ANNUL; |
| import static org.graalvm.compiler.asm.sparc.SPARCAssembler.BranchPredict.PREDICT_TAKEN; |
| import static org.graalvm.compiler.asm.sparc.SPARCAssembler.RCondition.Rc_z; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; |
| import static org.graalvm.compiler.lir.sparc.SPARCMove.loadFromConstantTable; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| |
| import org.graalvm.compiler.asm.Label; |
| import org.graalvm.compiler.asm.sparc.SPARCAddress; |
| import org.graalvm.compiler.asm.sparc.SPARCAssembler.CC; |
| import org.graalvm.compiler.asm.sparc.SPARCAssembler.ConditionFlag; |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister; |
| import org.graalvm.compiler.core.common.CompressEncoding; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.StandardOp.LoadConstantOp; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| import org.graalvm.compiler.lir.sparc.SPARCDelayedControlTransfer; |
| import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; |
| import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction; |
| |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.ValueUtil; |
| import jdk.vm.ci.hotspot.HotSpotConstant; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Constant; |
| |
| public class SPARCHotSpotMove { |
| |
| public static class LoadHotSpotObjectConstantInline extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction, LoadConstantOp { |
| public static final LIRInstructionClass<LoadHotSpotObjectConstantInline> TYPE = LIRInstructionClass.create(LoadHotSpotObjectConstantInline.class); |
| |
| public static final SizeEstimate SIZE = SizeEstimate.create(8); |
| private HotSpotConstant constant; |
| @Def({REG, STACK}) AllocatableValue result; |
| |
| public LoadHotSpotObjectConstantInline(HotSpotConstant constant, AllocatableValue result) { |
| super(TYPE, SIZE); |
| this.constant = constant; |
| this.result = result; |
| } |
| |
| @Override |
| protected void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| crb.recordInlineDataInCode(constant); |
| if (constant.isCompressed()) { |
| masm.setw(0, asRegister(result), true); |
| } else { |
| masm.setx(0, asRegister(result), true); |
| } |
| } |
| |
| @Override |
| public AllocatableValue getResult() { |
| return result; |
| } |
| |
| @Override |
| public Constant getConstant() { |
| return constant; |
| } |
| } |
| |
| public static class LoadHotSpotObjectConstantFromTable extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { |
| public static final LIRInstructionClass<LoadHotSpotObjectConstantFromTable> TYPE = LIRInstructionClass.create(LoadHotSpotObjectConstantFromTable.class); |
| |
| public static final SizeEstimate SIZE = SizeEstimate.create(2, 8); |
| private final HotSpotConstant constant; |
| @Use({REG}) private AllocatableValue constantTableBase; |
| @Def({REG, STACK}) AllocatableValue result; |
| |
| public LoadHotSpotObjectConstantFromTable(HotSpotConstant constant, AllocatableValue result, AllocatableValue constantTableBase) { |
| super(TYPE, SIZE); |
| this.constant = constant; |
| this.result = result; |
| this.constantTableBase = constantTableBase; |
| } |
| |
| @Override |
| protected void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| try (ScratchRegister scratch = masm.getScratchRegister()) { |
| boolean isStack = ValueUtil.isStackSlot(result); |
| Register register; |
| if (isStack) { |
| register = scratch.getRegister(); |
| } else { |
| register = asRegister(result); |
| } |
| int bytes = loadFromConstantTable(crb, masm, asRegister(constantTableBase), constant, register, SPARCDelayedControlTransfer.DUMMY); |
| if (isStack) { |
| masm.st(register, (SPARCAddress) crb.asAddress(result), bytes); |
| } |
| } |
| } |
| } |
| |
| public static final class CompressPointer extends SPARCLIRInstruction { |
| public static final LIRInstructionClass<CompressPointer> TYPE = LIRInstructionClass.create(CompressPointer.class); |
| public static final SizeEstimate SIZE = SizeEstimate.create(5); |
| |
| private final CompressEncoding encoding; |
| private final boolean nonNull; |
| |
| @Def({REG}) protected AllocatableValue result; |
| @Use({REG}) protected AllocatableValue input; |
| @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister; |
| |
| public CompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) { |
| super(TYPE, SIZE); |
| this.result = result; |
| this.input = input; |
| this.baseRegister = baseRegister; |
| this.encoding = encoding; |
| this.nonNull = nonNull; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| Register inputRegister = asRegister(input); |
| Register resReg = asRegister(result); |
| if (encoding.hasBase()) { |
| Register baseReg = asRegister(baseRegister); |
| if (!nonNull) { |
| masm.cmp(inputRegister, baseReg); |
| masm.movcc(ConditionFlag.Equal, CC.Xcc, baseReg, resReg); |
| masm.sub(resReg, baseReg, resReg); |
| } else { |
| masm.sub(inputRegister, baseReg, resReg); |
| } |
| if (encoding.getShift() != 0) { |
| masm.srlx(resReg, encoding.getShift(), resReg); |
| } |
| } else { |
| masm.srlx(inputRegister, encoding.getShift(), resReg); |
| } |
| } |
| } |
| |
| public static final class UncompressPointer extends SPARCLIRInstruction { |
| public static final LIRInstructionClass<UncompressPointer> TYPE = LIRInstructionClass.create(UncompressPointer.class); |
| public static final SizeEstimate SIZE = SizeEstimate.create(4); |
| |
| private final CompressEncoding encoding; |
| private final boolean nonNull; |
| |
| @Def({REG}) protected AllocatableValue result; |
| @Use({REG}) protected AllocatableValue input; |
| @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister; |
| |
| public UncompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) { |
| super(TYPE, SIZE); |
| this.result = result; |
| this.input = input; |
| this.baseRegister = baseRegister; |
| this.encoding = encoding; |
| this.nonNull = nonNull; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| Register inputRegister = asRegister(input); |
| Register resReg = asRegister(result); |
| Register baseReg = encoding.hasBase() ? asRegister(baseRegister) : null; |
| emitUncompressCode(masm, inputRegister, resReg, baseReg, encoding.getShift(), nonNull); |
| } |
| |
| public static void emitUncompressCode(SPARCMacroAssembler masm, Register inputRegister, Register resReg, Register baseReg, int shift, boolean nonNull) { |
| Register secondaryInput; |
| if (shift != 0) { |
| masm.sll(inputRegister, shift, resReg); |
| secondaryInput = resReg; |
| } else { |
| secondaryInput = inputRegister; |
| } |
| |
| if (baseReg != null) { |
| if (nonNull) { |
| masm.add(secondaryInput, baseReg, resReg); |
| } else { |
| Label done = new Label(); |
| BPR.emit(masm, Rc_z, ANNUL, PREDICT_TAKEN, secondaryInput, done); |
| masm.add(baseReg, secondaryInput, resReg); |
| masm.bind(done); |
| } |
| } |
| } |
| } |
| |
| } |
