Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCSafepointOp.java @ 11463:93c63975217e
Make ComputeProbabilityClosure more robust to probabilities that to infinity because of loops
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 29 Aug 2013 19:09:09 +0200 |
parents | 19a7856e3ab9 |
children |
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/* * Copyright (c) 2011, 2013, 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.asm.sparc.SPARCMacroAssembler.*; 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.hotspot.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.sparc.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.nodes.spi.*; /** * Emits a safepoint poll. */ @Opcode("SAFEPOINT") public class SPARCSafepointOp extends SPARCLIRInstruction { @State protected LIRFrameState state; @Temp({OperandFlag.REG}) private AllocatableValue temp; private final HotSpotVMConfig config; public SPARCSafepointOp(LIRFrameState state, HotSpotVMConfig config, LIRGeneratorTool tool) { this.state = state; this.config = config; temp = tool.newVariable(tool.target().wordKind); } @Override public void emitCode(TargetMethodAssembler tasm, SPARCMacroAssembler masm) { final int pos = masm.codeBuffer.position(); Register scratch = ((RegisterValue) temp).getRegister(); new Setx(config.safepointPollingAddress, scratch).emit(masm); tasm.recordInfopoint(pos, state, InfopointReason.SAFEPOINT); new Ldx(new SPARCAddress(scratch, 0), g0).emit(masm); } }