| /* |
| * Copyright (c) 2015, 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.hotspot.sparc; |
| |
| import static org.graalvm.compiler.asm.sparc.SPARCAssembler.isSimm13; |
| import static org.graalvm.compiler.lir.LIRValueUtil.asJavaConstant; |
| import static org.graalvm.compiler.lir.LIRValueUtil.isJavaConstant; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| |
| import org.graalvm.compiler.asm.Assembler; |
| import org.graalvm.compiler.asm.sparc.SPARCAddress; |
| import org.graalvm.compiler.asm.sparc.SPARCAssembler; |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister; |
| import org.graalvm.compiler.hotspot.HotSpotCounterOp; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.Opcode; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.TargetDescription; |
| import jdk.vm.ci.meta.Value; |
| |
| @Opcode("BenchMarkCounter") |
| public class SPARCHotSpotCounterOp extends HotSpotCounterOp { |
| public static final LIRInstructionClass<SPARCHotSpotCounterOp> TYPE = LIRInstructionClass.create(SPARCHotSpotCounterOp.class); |
| |
| private int[] counterPatchOffsets; |
| |
| public SPARCHotSpotCounterOp(String name, String group, Value increment, HotSpotRegistersProvider registers, GraalHotSpotVMConfig config) { |
| super(TYPE, name, group, increment, registers, config); |
| this.counterPatchOffsets = new int[1]; |
| } |
| |
| public SPARCHotSpotCounterOp(String[] names, String[] groups, Value[] increments, HotSpotRegistersProvider registers, GraalHotSpotVMConfig config) { |
| super(TYPE, names, groups, increments, registers, config); |
| this.counterPatchOffsets = new int[names.length]; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb) { |
| SPARCMacroAssembler masm = (SPARCMacroAssembler) crb.asm; |
| TargetDescription target = crb.target; |
| |
| // address for counters array |
| SPARCAddress countersArrayAddr = new SPARCAddress(thread, config.jvmciCountersThreadOffset); |
| try (ScratchRegister scratch = masm.getScratchRegister()) { |
| Register countersArrayReg = scratch.getRegister(); |
| |
| // load counters array |
| masm.ldx(countersArrayAddr, countersArrayReg); |
| IncrementEmitter emitter = new IncrementEmitter(countersArrayReg, masm); |
| forEachCounter(emitter, target); |
| } |
| } |
| |
| private void emitIncrement(int counterIndex, SPARCMacroAssembler masm, SPARCAddress counterAddr, Value increment) { |
| try (ScratchRegister scratch = masm.getScratchRegister()) { |
| Register counterReg = scratch.getRegister(); |
| // load counter value |
| masm.ldx(counterAddr, counterReg); |
| counterPatchOffsets[counterIndex] = masm.position(); |
| // increment counter |
| if (isJavaConstant(increment)) { |
| masm.add(counterReg, asInt(asJavaConstant(increment)), counterReg); |
| } else { |
| masm.add(counterReg, asRegister(increment), counterReg); |
| } |
| // store counter value |
| masm.stx(counterReg, counterAddr); |
| } |
| } |
| |
| /** |
| * Patches the increment value in the instruction emitted by the |
| * {@link #emitIncrement(int, SPARCMacroAssembler, SPARCAddress, Value)} method. This method is |
| * used if patching is needed after assembly. |
| * |
| * @param asm |
| * @param increment |
| */ |
| @Override |
| public void patchCounterIncrement(Assembler asm, int[] increment) { |
| for (int i = 0; i < increment.length; i++) { |
| int inst = counterPatchOffsets[i]; |
| ((SPARCAssembler) asm).patchAddImmediate(inst, increment[i]); |
| } |
| } |
| |
| public int[] getCounterPatchOffsets() { |
| return counterPatchOffsets; |
| } |
| |
| private class IncrementEmitter implements CounterProcedure { |
| private int lastDisplacement = 0; |
| private final Register countersArrayReg; |
| private final SPARCMacroAssembler masm; |
| |
| IncrementEmitter(Register countersArrayReg, SPARCMacroAssembler masm) { |
| super(); |
| this.countersArrayReg = countersArrayReg; |
| this.masm = masm; |
| } |
| |
| @Override |
| public void apply(int counterIndex, Value increment, int displacement) { |
| SPARCAddress counterAddr; |
| int relativeDisplacement = displacement - lastDisplacement; |
| if (isSimm13(relativeDisplacement)) { // Displacement fits into ld instruction |
| counterAddr = new SPARCAddress(countersArrayReg, relativeDisplacement); |
| } else { |
| try (ScratchRegister scratch = masm.getScratchRegister()) { |
| Register tempOffsetRegister = scratch.getRegister(); |
| masm.setx(relativeDisplacement, tempOffsetRegister, false); |
| masm.add(countersArrayReg, tempOffsetRegister, countersArrayReg); |
| } |
| lastDisplacement = displacement; |
| counterAddr = new SPARCAddress(countersArrayReg, 0); |
| } |
| emitIncrement(counterIndex, masm, counterAddr, increment); |
| } |
| } |
| } |