Mercurial > hg > graal-compiler
diff src/cpu/sparc/vm/register_sparc.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cpu/sparc/vm/register_sparc.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,442 @@ +/* + * Copyright 2000-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// forward declaration +class Address; +class VMRegImpl; +typedef VMRegImpl* VMReg; + + +// Use Register as shortcut +class RegisterImpl; +typedef RegisterImpl* Register; + + +inline Register as_Register(int encoding) { + return (Register)(intptr_t) encoding; +} + +// The implementation of integer registers for the SPARC architecture +class RegisterImpl: public AbstractRegisterImpl { + public: + enum { + log_set_size = 3, // the number of bits to encode the set register number + number_of_sets = 4, // the number of registers sets (in, local, out, global) + number_of_registers = number_of_sets << log_set_size, + + iset_no = 3, ibase = iset_no << log_set_size, // the in register set + lset_no = 2, lbase = lset_no << log_set_size, // the local register set + oset_no = 1, obase = oset_no << log_set_size, // the output register set + gset_no = 0, gbase = gset_no << log_set_size // the global register set + }; + + + friend Register as_Register(int encoding); + // set specific construction + friend Register as_iRegister(int number); + friend Register as_lRegister(int number); + friend Register as_oRegister(int number); + friend Register as_gRegister(int number); + + VMReg as_VMReg(); + + // accessors + int encoding() const { assert(is_valid(), "invalid register"); return value(); } + const char* name() const; + + // testers + bool is_valid() const { return (0 <= (value()&0x7F) && (value()&0x7F) < number_of_registers); } + bool is_even() const { return (encoding() & 1) == 0; } + bool is_in() const { return (encoding() >> log_set_size) == iset_no; } + bool is_local() const { return (encoding() >> log_set_size) == lset_no; } + bool is_out() const { return (encoding() >> log_set_size) == oset_no; } + bool is_global() const { return (encoding() >> log_set_size) == gset_no; } + + // derived registers, offsets, and addresses + Register successor() const { return as_Register(encoding() + 1); } + + int input_number() const { + assert(is_in(), "must be input register"); + return encoding() - ibase; + } + + Register after_save() const { + assert(is_out() || is_global(), "register not visible after save"); + return is_out() ? as_Register(encoding() + (ibase - obase)) : (const Register)this; + } + + Register after_restore() const { + assert(is_in() || is_global(), "register not visible after restore"); + return is_in() ? as_Register(encoding() + (obase - ibase)) : (const Register)this; + } + + int sp_offset_in_saved_window() const { + assert(is_in() || is_local(), "only i and l registers are saved in frame"); + return encoding() - lbase; + } + + inline Address address_in_saved_window() const; // implemented in assembler_sparc.hpp +}; + + +// set specific construction +inline Register as_iRegister(int number) { return as_Register(RegisterImpl::ibase + number); } +inline Register as_lRegister(int number) { return as_Register(RegisterImpl::lbase + number); } +inline Register as_oRegister(int number) { return as_Register(RegisterImpl::obase + number); } +inline Register as_gRegister(int number) { return as_Register(RegisterImpl::gbase + number); } + +// The integer registers of the SPARC architecture + +CONSTANT_REGISTER_DECLARATION(Register, noreg , (-1)); + +CONSTANT_REGISTER_DECLARATION(Register, G0 , (RegisterImpl::gbase + 0)); +CONSTANT_REGISTER_DECLARATION(Register, G1 , (RegisterImpl::gbase + 1)); +CONSTANT_REGISTER_DECLARATION(Register, G2 , (RegisterImpl::gbase + 2)); +CONSTANT_REGISTER_DECLARATION(Register, G3 , (RegisterImpl::gbase + 3)); +CONSTANT_REGISTER_DECLARATION(Register, G4 , (RegisterImpl::gbase + 4)); +CONSTANT_REGISTER_DECLARATION(Register, G5 , (RegisterImpl::gbase + 5)); +CONSTANT_REGISTER_DECLARATION(Register, G6 , (RegisterImpl::gbase + 6)); +CONSTANT_REGISTER_DECLARATION(Register, G7 , (RegisterImpl::gbase + 7)); + +CONSTANT_REGISTER_DECLARATION(Register, O0 , (RegisterImpl::obase + 0)); +CONSTANT_REGISTER_DECLARATION(Register, O1 , (RegisterImpl::obase + 1)); +CONSTANT_REGISTER_DECLARATION(Register, O2 , (RegisterImpl::obase + 2)); +CONSTANT_REGISTER_DECLARATION(Register, O3 , (RegisterImpl::obase + 3)); +CONSTANT_REGISTER_DECLARATION(Register, O4 , (RegisterImpl::obase + 4)); +CONSTANT_REGISTER_DECLARATION(Register, O5 , (RegisterImpl::obase + 5)); +CONSTANT_REGISTER_DECLARATION(Register, O6 , (RegisterImpl::obase + 6)); +CONSTANT_REGISTER_DECLARATION(Register, O7 , (RegisterImpl::obase + 7)); + +CONSTANT_REGISTER_DECLARATION(Register, L0 , (RegisterImpl::lbase + 0)); +CONSTANT_REGISTER_DECLARATION(Register, L1 , (RegisterImpl::lbase + 1)); +CONSTANT_REGISTER_DECLARATION(Register, L2 , (RegisterImpl::lbase + 2)); +CONSTANT_REGISTER_DECLARATION(Register, L3 , (RegisterImpl::lbase + 3)); +CONSTANT_REGISTER_DECLARATION(Register, L4 , (RegisterImpl::lbase + 4)); +CONSTANT_REGISTER_DECLARATION(Register, L5 , (RegisterImpl::lbase + 5)); +CONSTANT_REGISTER_DECLARATION(Register, L6 , (RegisterImpl::lbase + 6)); +CONSTANT_REGISTER_DECLARATION(Register, L7 , (RegisterImpl::lbase + 7)); + +CONSTANT_REGISTER_DECLARATION(Register, I0 , (RegisterImpl::ibase + 0)); +CONSTANT_REGISTER_DECLARATION(Register, I1 , (RegisterImpl::ibase + 1)); +CONSTANT_REGISTER_DECLARATION(Register, I2 , (RegisterImpl::ibase + 2)); +CONSTANT_REGISTER_DECLARATION(Register, I3 , (RegisterImpl::ibase + 3)); +CONSTANT_REGISTER_DECLARATION(Register, I4 , (RegisterImpl::ibase + 4)); +CONSTANT_REGISTER_DECLARATION(Register, I5 , (RegisterImpl::ibase + 5)); +CONSTANT_REGISTER_DECLARATION(Register, I6 , (RegisterImpl::ibase + 6)); +CONSTANT_REGISTER_DECLARATION(Register, I7 , (RegisterImpl::ibase + 7)); + +CONSTANT_REGISTER_DECLARATION(Register, FP , (RegisterImpl::ibase + 6)); +CONSTANT_REGISTER_DECLARATION(Register, SP , (RegisterImpl::obase + 6)); + +// +// Because sparc has so many registers, #define'ing values for the is +// beneficial in code size and the cost of some of the dangers of +// defines. We don't use them on Intel because win32 uses asm +// directives which use the same names for registers as Hotspot does, +// so #defines would screw up the inline assembly. If a particular +// file has a problem with these defines then it's possible to turn +// them off in that file by defining DONT_USE_REGISTER_DEFINES. +// register_definition_sparc.cpp does that so that it's able to +// provide real definitions of these registers for use in debuggers +// and such. +// + +#ifndef DONT_USE_REGISTER_DEFINES +#define noreg ((Register)(noreg_RegisterEnumValue)) + +#define G0 ((Register)(G0_RegisterEnumValue)) +#define G1 ((Register)(G1_RegisterEnumValue)) +#define G2 ((Register)(G2_RegisterEnumValue)) +#define G3 ((Register)(G3_RegisterEnumValue)) +#define G4 ((Register)(G4_RegisterEnumValue)) +#define G5 ((Register)(G5_RegisterEnumValue)) +#define G6 ((Register)(G6_RegisterEnumValue)) +#define G7 ((Register)(G7_RegisterEnumValue)) + +#define O0 ((Register)(O0_RegisterEnumValue)) +#define O1 ((Register)(O1_RegisterEnumValue)) +#define O2 ((Register)(O2_RegisterEnumValue)) +#define O3 ((Register)(O3_RegisterEnumValue)) +#define O4 ((Register)(O4_RegisterEnumValue)) +#define O5 ((Register)(O5_RegisterEnumValue)) +#define O6 ((Register)(O6_RegisterEnumValue)) +#define O7 ((Register)(O7_RegisterEnumValue)) + +#define L0 ((Register)(L0_RegisterEnumValue)) +#define L1 ((Register)(L1_RegisterEnumValue)) +#define L2 ((Register)(L2_RegisterEnumValue)) +#define L3 ((Register)(L3_RegisterEnumValue)) +#define L4 ((Register)(L4_RegisterEnumValue)) +#define L5 ((Register)(L5_RegisterEnumValue)) +#define L6 ((Register)(L6_RegisterEnumValue)) +#define L7 ((Register)(L7_RegisterEnumValue)) + +#define I0 ((Register)(I0_RegisterEnumValue)) +#define I1 ((Register)(I1_RegisterEnumValue)) +#define I2 ((Register)(I2_RegisterEnumValue)) +#define I3 ((Register)(I3_RegisterEnumValue)) +#define I4 ((Register)(I4_RegisterEnumValue)) +#define I5 ((Register)(I5_RegisterEnumValue)) +#define I6 ((Register)(I6_RegisterEnumValue)) +#define I7 ((Register)(I7_RegisterEnumValue)) + +#define FP ((Register)(FP_RegisterEnumValue)) +#define SP ((Register)(SP_RegisterEnumValue)) +#endif // DONT_USE_REGISTER_DEFINES + +// Use FloatRegister as shortcut +class FloatRegisterImpl; +typedef FloatRegisterImpl* FloatRegister; + + +// construction +inline FloatRegister as_FloatRegister(int encoding) { + return (FloatRegister)(intptr_t)encoding; +} + +// The implementation of float registers for the SPARC architecture + +class FloatRegisterImpl: public AbstractRegisterImpl { + public: + enum { + number_of_registers = 64 + }; + + enum Width { + S = 1, D = 2, Q = 3 + }; + + // construction + VMReg as_VMReg( ); + + // accessors + int encoding() const { assert(is_valid(), "invalid register"); return value(); } + + public: + int encoding(Width w) const { + const int c = encoding(); + switch (w) { + case S: + assert(c < 32, "bad single float register"); + return c; + + case D: + assert(c < 64 && (c & 1) == 0, "bad double float register"); + assert(c < 32 || VM_Version::v9_instructions_work(), "V9 float work only on V9 platform"); + return (c & 0x1e) | ((c & 0x20) >> 5); + + case Q: + assert(c < 64 && (c & 3) == 0, "bad quad float register"); + assert(c < 32 || VM_Version::v9_instructions_work(), "V9 float work only on V9 platform"); + return (c & 0x1c) | ((c & 0x20) >> 5); + } + ShouldNotReachHere(); + return -1; + } + + bool is_valid() const { return 0 <= value() && value() < number_of_registers; } + const char* name() const; + + FloatRegister successor() const { return as_FloatRegister(encoding() + 1); } +}; + + +// The float registers of the SPARC architecture + +CONSTANT_REGISTER_DECLARATION(FloatRegister, fnoreg , (-1)); + +CONSTANT_REGISTER_DECLARATION(FloatRegister, F0 , ( 0)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F1 , ( 1)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F2 , ( 2)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F3 , ( 3)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F4 , ( 4)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F5 , ( 5)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F6 , ( 6)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F7 , ( 7)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F8 , ( 8)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F9 , ( 9)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F10 , (10)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F11 , (11)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F12 , (12)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F13 , (13)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F14 , (14)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F15 , (15)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F16 , (16)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F17 , (17)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F18 , (18)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F19 , (19)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F20 , (20)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F21 , (21)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F22 , (22)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F23 , (23)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F24 , (24)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F25 , (25)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F26 , (26)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F27 , (27)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F28 , (28)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F29 , (29)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F30 , (30)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F31 , (31)); + +CONSTANT_REGISTER_DECLARATION(FloatRegister, F32 , (32)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F34 , (34)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F36 , (36)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F38 , (38)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F40 , (40)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F42 , (42)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F44 , (44)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F46 , (46)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F48 , (48)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F50 , (50)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F52 , (52)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F54 , (54)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F56 , (56)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F58 , (58)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F60 , (60)); +CONSTANT_REGISTER_DECLARATION(FloatRegister, F62 , (62)); + + +#ifndef DONT_USE_REGISTER_DEFINES +#define fnoreg ((FloatRegister)(fnoreg_FloatRegisterEnumValue)) +#define F0 ((FloatRegister)( F0_FloatRegisterEnumValue)) +#define F1 ((FloatRegister)( F1_FloatRegisterEnumValue)) +#define F2 ((FloatRegister)( F2_FloatRegisterEnumValue)) +#define F3 ((FloatRegister)( F3_FloatRegisterEnumValue)) +#define F4 ((FloatRegister)( F4_FloatRegisterEnumValue)) +#define F5 ((FloatRegister)( F5_FloatRegisterEnumValue)) +#define F6 ((FloatRegister)( F6_FloatRegisterEnumValue)) +#define F7 ((FloatRegister)( F7_FloatRegisterEnumValue)) +#define F8 ((FloatRegister)( F8_FloatRegisterEnumValue)) +#define F9 ((FloatRegister)( F9_FloatRegisterEnumValue)) +#define F10 ((FloatRegister)( F10_FloatRegisterEnumValue)) +#define F11 ((FloatRegister)( F11_FloatRegisterEnumValue)) +#define F12 ((FloatRegister)( F12_FloatRegisterEnumValue)) +#define F13 ((FloatRegister)( F13_FloatRegisterEnumValue)) +#define F14 ((FloatRegister)( F14_FloatRegisterEnumValue)) +#define F15 ((FloatRegister)( F15_FloatRegisterEnumValue)) +#define F16 ((FloatRegister)( F16_FloatRegisterEnumValue)) +#define F17 ((FloatRegister)( F17_FloatRegisterEnumValue)) +#define F18 ((FloatRegister)( F18_FloatRegisterEnumValue)) +#define F19 ((FloatRegister)( F19_FloatRegisterEnumValue)) +#define F20 ((FloatRegister)( F20_FloatRegisterEnumValue)) +#define F21 ((FloatRegister)( F21_FloatRegisterEnumValue)) +#define F22 ((FloatRegister)( F22_FloatRegisterEnumValue)) +#define F23 ((FloatRegister)( F23_FloatRegisterEnumValue)) +#define F24 ((FloatRegister)( F24_FloatRegisterEnumValue)) +#define F25 ((FloatRegister)( F25_FloatRegisterEnumValue)) +#define F26 ((FloatRegister)( F26_FloatRegisterEnumValue)) +#define F27 ((FloatRegister)( F27_FloatRegisterEnumValue)) +#define F28 ((FloatRegister)( F28_FloatRegisterEnumValue)) +#define F29 ((FloatRegister)( F29_FloatRegisterEnumValue)) +#define F30 ((FloatRegister)( F30_FloatRegisterEnumValue)) +#define F31 ((FloatRegister)( F31_FloatRegisterEnumValue)) +#define F32 ((FloatRegister)( F32_FloatRegisterEnumValue)) +#define F34 ((FloatRegister)( F34_FloatRegisterEnumValue)) +#define F36 ((FloatRegister)( F36_FloatRegisterEnumValue)) +#define F38 ((FloatRegister)( F38_FloatRegisterEnumValue)) +#define F40 ((FloatRegister)( F40_FloatRegisterEnumValue)) +#define F42 ((FloatRegister)( F42_FloatRegisterEnumValue)) +#define F44 ((FloatRegister)( F44_FloatRegisterEnumValue)) +#define F46 ((FloatRegister)( F46_FloatRegisterEnumValue)) +#define F48 ((FloatRegister)( F48_FloatRegisterEnumValue)) +#define F50 ((FloatRegister)( F50_FloatRegisterEnumValue)) +#define F52 ((FloatRegister)( F52_FloatRegisterEnumValue)) +#define F54 ((FloatRegister)( F54_FloatRegisterEnumValue)) +#define F56 ((FloatRegister)( F56_FloatRegisterEnumValue)) +#define F58 ((FloatRegister)( F58_FloatRegisterEnumValue)) +#define F60 ((FloatRegister)( F60_FloatRegisterEnumValue)) +#define F62 ((FloatRegister)( F62_FloatRegisterEnumValue)) +#endif // DONT_USE_REGISTER_DEFINES + +// Maximum number of incoming arguments that can be passed in i registers. +const int SPARC_ARGS_IN_REGS_NUM = 6; + +class ConcreteRegisterImpl : public AbstractRegisterImpl { + public: + enum { + // 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 = 2*RegisterImpl::number_of_registers + + FloatRegisterImpl::number_of_registers + + 1 + // ccr + 4 // fcc + }; + static const int max_gpr; + static const int max_fpr; + +}; + +// Single, Double and Quad fp reg classes. These exist to map the ADLC +// encoding for a floating point register, to the FloatRegister number +// desired by the macroassembler. A FloatRegister is a number between +// 0 and 63 passed around as a pointer. For ADLC, an fp register encoding +// is the actual bit encoding used by the sparc hardware. When ADLC used +// the macroassembler to generate an instruction that references, e.g., a +// double fp reg, it passed the bit encoding to the macroassembler via +// as_FloatRegister, which, for double regs > 30, returns an illegal +// register number. +// +// Therefore we provide the following classes for use by ADLC. Their +// sole purpose is to convert from sparc register encodings to FloatRegisters. +// At some future time, we might replace FloatRegister with these classes, +// hence the definitions of as_xxxFloatRegister as class methods rather +// than as external inline routines. + +class SingleFloatRegisterImpl; +typedef SingleFloatRegisterImpl *SingleFloatRegister; + +inline FloatRegister as_SingleFloatRegister(int encoding); +class SingleFloatRegisterImpl { + public: + friend inline FloatRegister as_SingleFloatRegister(int encoding) { + assert(encoding < 32, "bad single float register encoding"); + return as_FloatRegister(encoding); + } +}; + + +class DoubleFloatRegisterImpl; +typedef DoubleFloatRegisterImpl *DoubleFloatRegister; + +inline FloatRegister as_DoubleFloatRegister(int encoding); +class DoubleFloatRegisterImpl { + public: + friend inline FloatRegister as_DoubleFloatRegister(int encoding) { + assert(encoding < 32, "bad double float register encoding"); + return as_FloatRegister( ((encoding & 1) << 5) | (encoding & 0x1e) ); + } +}; + + +class QuadFloatRegisterImpl; +typedef QuadFloatRegisterImpl *QuadFloatRegister; + +class QuadFloatRegisterImpl { + public: + friend FloatRegister as_QuadFloatRegister(int encoding) { + assert(encoding < 32 && ((encoding & 2) == 0), "bad quad float register encoding"); + return as_FloatRegister( ((encoding & 1) << 5) | (encoding & 0x1c) ); + } +};