Mercurial > hg > truffle
view c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotRegisterConfig.java @ 1416:1b41af477605
Added HotSpotVM project Java source files.
author | Thomas Wuerthinger <thomas.wuerthinger@gmail.com> |
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date | Wed, 23 Jun 2010 16:36:58 +0200 |
parents | |
children | 55ac38887415 |
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/* * Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved. * * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product * that is described in this document. In particular, and without limitation, these intellectual property * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or * more additional patents or pending patent applications in the U.S. and in other countries. * * U.S. Government Rights - Commercial software. Government users are subject to the Sun * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its * supplements. * * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the * U.S. and other countries. * * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open * Company, Ltd. */ package com.sun.hotspot.c1x; import com.sun.c1x.target.amd64.AMD64; import com.sun.c1x.util.Util; import com.sun.cri.ci.CiCallingConvention; import com.sun.cri.ci.CiKind; import com.sun.cri.ci.CiRegister; import com.sun.cri.ci.CiStackSlot; import com.sun.cri.ci.CiTarget; import com.sun.cri.ci.CiValue; import com.sun.cri.ri.RiRegisterConfig; /** * @author Thomas Wuerthinger * */ public class HotSpotRegisterConfig implements RiRegisterConfig { @Override public CiRegister[] getAllocatableRegisters() { return new CiRegister[]{ AMD64.rax, AMD64.rbx, AMD64.rcx, AMD64.rdx, AMD64.rsi, AMD64.rdi, AMD64.r10, AMD64.r11} ; } private final CiRegister[] generalParameterRegisters = new CiRegister[]{AMD64.rdx, AMD64.r8, AMD64.r9, AMD64.rdi, AMD64.rsi, AMD64.rcx}; private final CiRegister[] xmmParameterRegisters = new CiRegister[]{AMD64.xmm0, AMD64.xmm1, AMD64.xmm2, AMD64.xmm3, AMD64.xmm4, AMD64.xmm5, AMD64.xmm6, AMD64.xmm7}; @Override public int getCalleeSaveRegisterOffset(CiRegister register) { return 0; } @Override public CiRegister[] getCallerSaveRegisters() { return getAllocatableRegisters(); } @Override public CiRegister getFramePointerRegister() { return AMD64.rbp; } @Override public CiRegister getIntegerRegister(int index) { throw new UnsupportedOperationException(); } @Override public CiCallingConvention getJavaCallingConvention(CiKind[] parameters, boolean outgoing, CiTarget target) { return callingConvention(parameters, outgoing, target); } private CiCallingConvention callingConvention(CiKind[] types, boolean outgoing, CiTarget target) { CiValue[] locations = new CiValue[types.length]; int currentGeneral = 0; int currentXMM = 0; int currentStackIndex = 0; for (int i = 0; i < types.length; i++) { final CiKind kind = types[i]; switch (kind) { case Byte: case Boolean: case Short: case Char: case Int: case Long: case Word: case Object: if (currentGeneral < generalParameterRegisters.length) { CiRegister register = generalParameterRegisters[currentGeneral++]; locations[i] = register.asValue(kind); } break; case Float: case Double: if (currentXMM < xmmParameterRegisters.length) { CiRegister register = xmmParameterRegisters[currentXMM++]; locations[i] = register.asValue(kind); } break; default: throw Util.shouldNotReachHere(); } if (locations[i] == null) { locations[i] = CiStackSlot.get(kind.stackKind(), currentStackIndex, !outgoing); currentStackIndex += target.spillSlots(kind); } } return new CiCallingConvention(locations, currentStackIndex * target.spillSlotSize); } @Override public int getMinimumCalleeSaveFrameSize() { return 0; } @Override public CiCallingConvention getNativeCallingConvention(CiKind[] parameters, boolean outgoing, CiTarget target) { throw new UnsupportedOperationException(); } @Override public CiRegister[] getRegisterReferenceMapOrder() { return getAllocatableRegisters(); } @Override public CiRegister getReturnRegister(CiKind kind) { return AMD64.rax; } @Override public CiCallingConvention getRuntimeCallingConvention(CiKind[] parameters, CiTarget target) { throw new UnsupportedOperationException(); } @Override public CiRegister getSafepointRegister() { return AMD64.r13; } @Override public CiRegister getScratchRegister() { return AMD64.r15; } @Override public CiRegister getStackPointerRegister() { return AMD64.rsp; } @Override public CiRegister getThreadRegister() { return AMD64.r14; } }