001/*
002 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.truffle.hotspot.sparc;
024
025import static com.oracle.graal.asm.sparc.SPARCAssembler.Annul.*;
026import static com.oracle.graal.asm.sparc.SPARCAssembler.BranchPredict.*;
027import static com.oracle.graal.asm.sparc.SPARCAssembler.CC.*;
028import static com.oracle.graal.asm.sparc.SPARCAssembler.ConditionFlag.*;
029import static jdk.internal.jvmci.code.CallingConvention.Type.*;
030import static jdk.internal.jvmci.meta.Kind.*;
031import static jdk.internal.jvmci.sparc.SPARC.CPUFeature.*;
032import jdk.internal.jvmci.code.*;
033import jdk.internal.jvmci.hotspot.*;
034import jdk.internal.jvmci.meta.*;
035import jdk.internal.jvmci.service.*;
036
037import com.oracle.graal.asm.*;
038import com.oracle.graal.asm.sparc.*;
039import com.oracle.graal.asm.sparc.SPARCMacroAssembler.*;
040import com.oracle.graal.compiler.common.spi.*;
041import com.oracle.graal.hotspot.meta.*;
042import com.oracle.graal.lir.asm.*;
043import com.oracle.graal.lir.framemap.*;
044import com.oracle.graal.truffle.*;
045import com.oracle.graal.truffle.hotspot.*;
046
047@ServiceProvider(OptimizedCallTargetInstrumentationFactory.class)
048public class SPARCOptimizedCallTargetInstumentationFactory implements OptimizedCallTargetInstrumentationFactory {
049
050    public CompilationResultBuilder createBuilder(CodeCacheProvider codeCache, ForeignCallsProvider foreignCalls, FrameMap frameMap, Assembler asm, FrameContext frameContext,
051                    CompilationResult compilationResult) {
052        return new OptimizedCallTargetInstrumentation(codeCache, foreignCalls, frameMap, asm, frameContext, compilationResult) {
053            @Override
054            protected void injectTailCallCode(HotSpotVMConfig config, HotSpotRegistersProvider registers) {
055                @SuppressWarnings("hiding")
056                SPARCMacroAssembler asm = (SPARCMacroAssembler) this.asm;
057                try (ScratchRegister scratch = asm.getScratchRegister()) {
058                    Register thisRegister = codeCache.getRegisterConfig().getCallingConventionRegisters(JavaCall, Object)[0];
059                    Register spillRegister = scratch.getRegister();
060                    Label doProlog = new Label();
061                    SPARCAddress codeBlobAddress = new SPARCAddress(thisRegister, getFieldOffset("address", InstalledCode.class));
062                    SPARCAddress verifiedEntryPointAddress = new SPARCAddress(spillRegister, config.nmethodEntryOffset);
063
064                    asm.ldx(codeBlobAddress, spillRegister);
065                    if (asm.hasFeature(CBCOND)) {
066                        asm.cbcondx(Equal, spillRegister, 0, doProlog);
067                    } else {
068                        asm.cmp(spillRegister, 0);
069                        asm.bpcc(Equal, NOT_ANNUL, doProlog, Xcc, PREDICT_NOT_TAKEN);
070                        asm.nop();
071                    }
072                    asm.ldx(verifiedEntryPointAddress, spillRegister); // in delay slot
073                    asm.jmp(spillRegister);
074                    asm.nop();
075                    asm.bind(doProlog);
076                }
077            }
078        };
079    }
080
081    public void setInstrumentedMethod(ResolvedJavaMethod method) {
082        HotSpotResolvedJavaMethod hsMethod = (HotSpotResolvedJavaMethod) method;
083        hsMethod.setNotInlineable();
084    }
085
086    public String getArchitecture() {
087        return "SPARC";
088    }
089}