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| 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
| 2 // All Rights Reserved. | 2 // All Rights Reserved. |
| 3 // | 3 // |
| 4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
| 6 // met: | 6 // met: |
| 7 // | 7 // |
| 8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
| 9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
| 10 // | 10 // |
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| 116 // ----------------------------------------------------------------------------- | 116 // ----------------------------------------------------------------------------- |
| 117 // Common register code. | 117 // Common register code. |
| 118 | 118 |
| 119 const char* Register::ToString() { | 119 const char* Register::ToString() { |
| 120 // This is the mapping of allocation indices to registers. | 120 // This is the mapping of allocation indices to registers. |
| 121 DCHECK(reg_code >= 0 && reg_code < kNumRegisters); | 121 DCHECK(reg_code >= 0 && reg_code < kNumRegisters); |
| 122 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 122 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) |
| 123 ->GetGeneralRegisterName(reg_code); | 123 ->GetGeneralRegisterName(reg_code); |
| 124 } | 124 } |
| 125 | 125 |
| 126 | 126 bool Register::IsAllocatable( |
| 127 bool Register::IsAllocatable() const { | 127 RegisterConfiguration::CompilerSelector compiler) const { |
| 128 return ((1 << reg_code) & | 128 return ((1 << reg_code) & |
| 129 RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 129 RegisterConfiguration::ArchDefault(compiler) |
| 130 ->allocatable_general_codes_mask()) != 0; | 130 ->allocatable_general_codes_mask()) != 0; |
| 131 } | 131 } |
| 132 | 132 |
| 133 const char* DoubleRegister::ToString() { | 133 const char* DoubleRegister::ToString() { |
| 134 // This is the mapping of allocation indices to registers. | 134 // This is the mapping of allocation indices to registers. |
| 135 DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters); | 135 DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters); |
| 136 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 136 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) |
| 137 ->GetDoubleRegisterName(reg_code); | 137 ->GetDoubleRegisterName(reg_code); |
| 138 } | 138 } |
| 139 | 139 |
| 140 | 140 bool DoubleRegister::IsAllocatable( |
| 141 bool DoubleRegister::IsAllocatable() const { | 141 RegisterConfiguration::CompilerSelector compiler) const { |
| 142 return ((1 << reg_code) & | 142 return ((1 << reg_code) & |
| 143 RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 143 RegisterConfiguration::ArchDefault(compiler) |
| 144 ->allocatable_double_codes_mask()) != 0; | 144 ->allocatable_double_codes_mask()) != 0; |
| 145 } | 145 } |
| 146 | 146 |
| 147 // FloatRegister is only a distinct type on ARM. On all other platforms it's | 147 // FloatRegister is only a distinct type on ARM. On all other platforms it's |
| 148 // typedef'ed to DoubleRegister. | 148 // typedef'ed to DoubleRegister. |
| 149 #if V8_TARGET_ARCH_ARM | 149 #if V8_TARGET_ARCH_ARM |
| 150 const char* FloatRegister::ToString() { | 150 const char* FloatRegister::ToString() { |
| 151 // This is the mapping of allocation indices to registers. | 151 // This is the mapping of allocation indices to registers. |
| 152 DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters); | 152 DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters); |
| 153 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 153 return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) |
| 154 ->GetFloatRegisterName(reg_code); | 154 ->GetFloatRegisterName(reg_code); |
| 155 } | 155 } |
| 156 | 156 |
| 157 bool FloatRegister::IsAllocatable() const { | 157 bool FloatRegister::IsAllocatable( |
| 158 RegisterConfiguration::CompilerSelector compiler) const { |
| 158 // TODO(bbudge) Update this once RegisterConfigutation handles aliasing. | 159 // TODO(bbudge) Update this once RegisterConfigutation handles aliasing. |
| 159 return ((1 << reg_code) & | 160 return ((1 << reg_code) & |
| 160 RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) | 161 RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT) |
| 161 ->allocatable_double_codes_mask()) != 0; | 162 ->allocatable_double_codes_mask()) != 0; |
| 162 } | 163 } |
| 163 #endif // V8_TARGET_ARCH_ARM | 164 #endif // V8_TARGET_ARCH_ARM |
| 164 | 165 |
| 165 // ----------------------------------------------------------------------------- | 166 // ----------------------------------------------------------------------------- |
| 166 // Common double constants. | 167 // Common double constants. |
| 167 | 168 |
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| 2070 | 2071 |
| 2071 | 2072 |
| 2072 void Assembler::DataAlign(int m) { | 2073 void Assembler::DataAlign(int m) { |
| 2073 DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m)); | 2074 DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m)); |
| 2074 while ((pc_offset() & (m - 1)) != 0) { | 2075 while ((pc_offset() & (m - 1)) != 0) { |
| 2075 db(0); | 2076 db(0); |
| 2076 } | 2077 } |
| 2077 } | 2078 } |
| 2078 } // namespace internal | 2079 } // namespace internal |
| 2079 } // namespace v8 | 2080 } // namespace v8 |
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