Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotSafepointOp.java @ 21526:1da7aef31a08
created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 19 May 2015 23:16:07 +0200 |
parents | 15a46a918fc1 |
children | 5324104ac4f3 |
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/* * Copyright (c) 2011, 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.hotspot.sparc; import static com.oracle.graal.sparc.SPARC.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Setx; import com.oracle.graal.hotspot.jvmci.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.lir.gen.*; import com.oracle.graal.lir.sparc.*; import edu.umd.cs.findbugs.annotations.*; /** * Emits a safepoint poll. */ @Opcode("SAFEPOINT") public class SPARCHotSpotSafepointOp extends SPARCLIRInstruction { public static final LIRInstructionClass<SPARCHotSpotSafepointOp> TYPE = LIRInstructionClass.create(SPARCHotSpotSafepointOp.class); @State protected LIRFrameState state; @SuppressFBWarnings(value = "BC_IMPOSSIBLE_CAST", justification = "changed by the register allocator") @Temp({OperandFlag.REG}) private AllocatableValue temp; private final HotSpotVMConfig config; public SPARCHotSpotSafepointOp(LIRFrameState state, HotSpotVMConfig config, LIRGeneratorTool tool) { super(TYPE); this.state = state; this.config = config; this.temp = tool.newVariable(LIRKind.value(tool.target().wordKind)); } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { Register scratch = ((RegisterValue) temp).getRegister(); emitCode(crb, masm, config, false, state, scratch); } public static void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm, HotSpotVMConfig config, boolean atReturn, LIRFrameState state, Register scratch) { new Setx(config.safepointPollingAddress, scratch).emit(masm); crb.recordMark(atReturn ? config.MARKID_POLL_RETURN_FAR : config.MARKID_POLL_FAR); final int pos = masm.position(); masm.ldx(new SPARCAddress(scratch, 0), g0); if (state != null) { crb.recordInfopoint(pos, state, InfopointReason.SAFEPOINT); } } }