Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotRegisterConfig.java @ 9423:3426008293e7
Move getSizeInBytes method to Architecture class.
author | Roland Schatz <roland.schatz@oracle.com> |
---|---|
date | Tue, 30 Apr 2013 12:04:13 +0200 |
parents | a58860b72b1f |
children | 3ec29630cfb4 |
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/* * Copyright (c) 2011, 2012, 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.amd64; import static com.oracle.graal.amd64.AMD64.*; import java.util.*; import com.oracle.graal.amd64.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.code.CallingConvention.Type; import com.oracle.graal.api.code.Register.RegisterFlag; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.hotspot.*; import com.oracle.graal.phases.*; // @formatter:off public class AMD64HotSpotRegisterConfig implements RegisterConfig { private final Register[] allocatable = initAllocatable(); private final EnumMap<RegisterFlag, Register[]> categorized = Register.categorize(allocatable); private final RegisterAttributes[] attributesMap; @Override public Register[] getAllocatableRegisters() { return allocatable.clone(); } @Override public EnumMap<RegisterFlag, Register[]> getCategorizedAllocatableRegisters() { return categorized.clone(); } @Override public RegisterAttributes[] getAttributesMap() { return attributesMap.clone(); } private final Register[] javaGeneralParameterRegisters; private final Register[] nativeGeneralParameterRegisters; private final Register[] xmmParameterRegisters = {xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7}; private final CalleeSaveLayout csl; private static Register findRegister(String name, Register[] all) { for (Register reg : all) { if (reg.name.equals(name)) { return reg; } } throw new IllegalArgumentException("register " + name + " is not allocatable"); } private static Register[] initAllocatable() { Register[] allocatable = { rax, rbx, rcx, rdx, /*rsp,*/ rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, /*r15, */ xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 }; if (GraalOptions.RegisterPressure != null) { String[] names = GraalOptions.RegisterPressure.split(","); Register[] regs = new Register[names.length]; for (int i = 0; i < names.length; i++) { regs[i] = findRegister(names[i], allocatable); } return regs; } return allocatable; } public AMD64HotSpotRegisterConfig(HotSpotVMConfig config, boolean globalStubConfig) { if (config.windowsOs) { javaGeneralParameterRegisters = new Register[] {rdx, r8, r9, rdi, rsi, rcx}; nativeGeneralParameterRegisters = new Register[] {rcx, rdx, r8, r9}; } else { javaGeneralParameterRegisters = new Register[] {rsi, rdx, rcx, r8, r9, rdi}; nativeGeneralParameterRegisters = new Register[] {rdi, rsi, rdx, rcx, r8, r9}; } if (globalStubConfig) { Register[] regs = { rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 }; csl = new CalleeSaveLayout(0, -1, 8, regs); } else { csl = null; } attributesMap = RegisterAttributes.createMap(this, AMD64.allRegisters); } @Override public Register[] getCallerSaveRegisters() { return getAllocatableRegisters(); } @Override public Register getRegisterForRole(int index) { throw new UnsupportedOperationException(); } @Override public CallingConvention getCallingConvention(Type type, JavaType returnType, JavaType[] parameterTypes, TargetDescription target, boolean stackOnly) { if (type == Type.NativeCall) { return callingConvention(nativeGeneralParameterRegisters, returnType, parameterTypes, type, target, stackOnly); } return callingConvention(javaGeneralParameterRegisters, returnType, parameterTypes, type, target, stackOnly); } public Register[] getCallingConventionRegisters(Type type, RegisterFlag flag) { if (flag == RegisterFlag.FPU) { return xmmParameterRegisters; } return type == Type.NativeCall ? nativeGeneralParameterRegisters : javaGeneralParameterRegisters; } private CallingConvention callingConvention(Register[] generalParameterRegisters, JavaType returnType, JavaType[] parameterTypes, Type type, TargetDescription target, boolean stackOnly) { AllocatableValue[] locations = new AllocatableValue[parameterTypes.length]; int currentGeneral = 0; int currentXMM = 0; int currentStackOffset = 0; for (int i = 0; i < parameterTypes.length; i++) { final Kind kind = parameterTypes[i].getKind(); switch (kind) { case Byte: case Boolean: case Short: case Char: case Int: case Long: case Object: if (!stackOnly && currentGeneral < generalParameterRegisters.length) { Register register = generalParameterRegisters[currentGeneral++]; locations[i] = register.asValue(kind); } break; case Float: case Double: if (!stackOnly && currentXMM < xmmParameterRegisters.length) { Register register = xmmParameterRegisters[currentXMM++]; locations[i] = register.asValue(kind); } break; default: throw GraalInternalError.shouldNotReachHere(); } if (locations[i] == null) { locations[i] = StackSlot.get(kind.getStackKind(), currentStackOffset, !type.out); currentStackOffset += Math.max(target.arch.getSizeInBytes(kind), target.wordSize); } } Kind returnKind = returnType == null ? Kind.Void : returnType.getKind(); AllocatableValue returnLocation = returnKind == Kind.Void ? Value.ILLEGAL : getReturnRegister(returnKind).asValue(returnKind); return new CallingConvention(currentStackOffset, returnLocation, locations); } @Override public Register getReturnRegister(Kind kind) { switch (kind) { case Boolean: case Byte: case Char: case Short: case Int: case Long: case Object: return rax; case Float: case Double: return xmm0; case Void: case Illegal: return null; default: throw new UnsupportedOperationException("no return register for type " + kind); } } @Override public Register getFrameRegister() { return rsp; } public CalleeSaveLayout getCalleeSaveLayout() { return csl; } @Override public String toString() { String res = String.format( "Allocatable: " + Arrays.toString(getAllocatableRegisters()) + "%n" + "CallerSave: " + Arrays.toString(getCallerSaveRegisters()) + "%n" + "CalleeSave: " + getCalleeSaveLayout() + "%n"); return res; } }