/* * Copyright (c) 2000, 2010, 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. * */ #ifndef CPU_X86_VM_REGISTER_X86_HPP #define CPU_X86_VM_REGISTER_X86_HPP #include "asm/register.hpp" #include "vm_version_x86.hpp" class VMRegImpl; typedef VMRegImpl* VMReg; // Use Register as shortcut class RegisterImpl; typedef RegisterImpl* Register; // The implementation of integer registers for the ia32 architecture inline Register as_Register(int encoding) { return (Register)(intptr_t) encoding; } class RegisterImpl: public AbstractRegisterImpl { public: enum { #ifndef AMD64 number_of_registers = 8, number_of_byte_registers = 4 #else number_of_registers = 16, number_of_byte_registers = 16 #endif // AMD64 }; // derived registers, offsets, and addresses Register successor() const { return as_Register(encoding() + 1); } // construction inline friend Register as_Register(int encoding); VMReg as_VMReg(); // accessors int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } bool has_byte_register() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_byte_registers; } const char* name() const; }; // The integer registers of the ia32/amd64 architecture CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1)); CONSTANT_REGISTER_DECLARATION(Register, rax, (0)); CONSTANT_REGISTER_DECLARATION(Register, rcx, (1)); CONSTANT_REGISTER_DECLARATION(Register, rdx, (2)); CONSTANT_REGISTER_DECLARATION(Register, rbx, (3)); CONSTANT_REGISTER_DECLARATION(Register, rsp, (4)); CONSTANT_REGISTER_DECLARATION(Register, rbp, (5)); CONSTANT_REGISTER_DECLARATION(Register, rsi, (6)); CONSTANT_REGISTER_DECLARATION(Register, rdi, (7)); #ifdef AMD64 CONSTANT_REGISTER_DECLARATION(Register, r8, (8)); CONSTANT_REGISTER_DECLARATION(Register, r9, (9)); CONSTANT_REGISTER_DECLARATION(Register, r10, (10)); CONSTANT_REGISTER_DECLARATION(Register, r11, (11)); CONSTANT_REGISTER_DECLARATION(Register, r12, (12)); CONSTANT_REGISTER_DECLARATION(Register, r13, (13)); CONSTANT_REGISTER_DECLARATION(Register, r14, (14)); CONSTANT_REGISTER_DECLARATION(Register, r15, (15)); #endif // AMD64 // Use FloatRegister as shortcut class FloatRegisterImpl; typedef FloatRegisterImpl* FloatRegister; inline FloatRegister as_FloatRegister(int encoding) { return (FloatRegister)(intptr_t) encoding; } // The implementation of floating point registers for the ia32 architecture class FloatRegisterImpl: public AbstractRegisterImpl { public: enum { number_of_registers = 8 }; // construction inline friend FloatRegister as_FloatRegister(int encoding); VMReg as_VMReg(); // derived registers, offsets, and addresses FloatRegister successor() const { return as_FloatRegister(encoding() + 1); } // accessors int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } const char* name() const; }; // Use XMMRegister as shortcut class XMMRegisterImpl; typedef XMMRegisterImpl* XMMRegister; // Use MMXRegister as shortcut class MMXRegisterImpl; typedef MMXRegisterImpl* MMXRegister; inline XMMRegister as_XMMRegister(int encoding) { return (XMMRegister)(intptr_t)encoding; } inline MMXRegister as_MMXRegister(int encoding) { return (MMXRegister)(intptr_t)encoding; } // The implementation of XMM registers for the IA32 architecture class XMMRegisterImpl: public AbstractRegisterImpl { public: enum { #ifndef AMD64 number_of_registers = 8 #else number_of_registers = 16 #endif // AMD64 }; // construction friend XMMRegister as_XMMRegister(int encoding); VMReg as_VMReg(); // derived registers, offsets, and addresses XMMRegister successor() const { return as_XMMRegister(encoding() + 1); } // accessors int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } const char* name() const; }; // The XMM registers, for P3 and up chips CONSTANT_REGISTER_DECLARATION(XMMRegister, xnoreg , (-1)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm0 , ( 0)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm1 , ( 1)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm2 , ( 2)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm3 , ( 3)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm4 , ( 4)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm5 , ( 5)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm6 , ( 6)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm7 , ( 7)); #ifdef AMD64 CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm8, (8)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm9, (9)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm10, (10)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm11, (11)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm12, (12)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm13, (13)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm14, (14)); CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm15, (15)); #endif // AMD64 // Only used by the 32bit stubGenerator. These can't be described by vmreg and hence // can't be described in oopMaps and therefore can't be used by the compilers (at least // were deopt might wan't to see them). // The MMX registers, for P3 and up chips CONSTANT_REGISTER_DECLARATION(MMXRegister, mnoreg , (-1)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx0 , ( 0)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx1 , ( 1)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx2 , ( 2)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx3 , ( 3)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx4 , ( 4)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx5 , ( 5)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx6 , ( 6)); CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx7 , ( 7)); // Need to know the total number of registers of all sorts for SharedInfo. // Define a class that exports it. class ConcreteRegisterImpl : public AbstractRegisterImpl { public: enum { // A big enough number for C2: all the registers plus flags // This number must be large enough to cover REG_COUNT (defined by c2) registers. // There is no requirement that any ordering here matches any ordering c2 gives // it's optoregs. number_of_registers = RegisterImpl::number_of_registers + #ifdef AMD64 RegisterImpl::number_of_registers + // "H" half of a 64bit register #endif // AMD64 2 * FloatRegisterImpl::number_of_registers + 2 * XMMRegisterImpl::number_of_registers + 1 // eflags }; static const int max_gpr; static const int max_fpr; static const int max_xmm; }; #endif // CPU_X86_VM_REGISTER_X86_HPP