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1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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68 CodeGeneratorScope::Current()->unsafe_bailout_->Branch(equal); | 68 CodeGeneratorScope::Current()->unsafe_bailout_->Branch(equal); |
69 CodeGeneratorScope::Current()->unsafe_bailout_->Branch(not_equal); | 69 CodeGeneratorScope::Current()->unsafe_bailout_->Branch(not_equal); |
70 } | 70 } |
71 } else if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) { | 71 } else if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) { |
72 CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle()); | 72 CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle()); |
73 } else { | 73 } else { |
74 CodeGeneratorScope::Current()->masm()->Set(fresh.reg(), | 74 CodeGeneratorScope::Current()->masm()->Set(fresh.reg(), |
75 Immediate(handle())); | 75 Immediate(handle())); |
76 } | 76 } |
77 // This result becomes a copy of the fresh one. | 77 // This result becomes a copy of the fresh one. |
78 fresh.set_number_info(number_info()); | 78 fresh.set_type_info(type_info()); |
79 *this = fresh; | 79 *this = fresh; |
80 } | 80 } |
81 ASSERT(is_register()); | 81 ASSERT(is_register()); |
82 } | 82 } |
83 | 83 |
84 | 84 |
85 void Result::ToRegister(Register target) { | 85 void Result::ToRegister(Register target) { |
86 ASSERT(is_valid()); | 86 ASSERT(is_valid()); |
87 if (!is_register() || !reg().is(target)) { | 87 if (!is_register() || !reg().is(target)) { |
88 Result fresh = CodeGeneratorScope::Current()->allocator()->Allocate(target); | 88 Result fresh = CodeGeneratorScope::Current()->allocator()->Allocate(target); |
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115 } | 115 } |
116 } else { | 116 } else { |
117 if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) { | 117 if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) { |
118 CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle()); | 118 CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle()); |
119 } else { | 119 } else { |
120 CodeGeneratorScope::Current()->masm()->Set(fresh.reg(), | 120 CodeGeneratorScope::Current()->masm()->Set(fresh.reg(), |
121 Immediate(handle())); | 121 Immediate(handle())); |
122 } | 122 } |
123 } | 123 } |
124 } | 124 } |
125 fresh.set_number_info(number_info()); | 125 fresh.set_type_info(type_info()); |
126 fresh.set_untagged_int32(is_untagged_int32()); | 126 fresh.set_untagged_int32(is_untagged_int32()); |
127 *this = fresh; | 127 *this = fresh; |
128 } else if (is_register() && reg().is(target)) { | 128 } else if (is_register() && reg().is(target)) { |
129 ASSERT(CodeGeneratorScope::Current()->has_valid_frame()); | 129 ASSERT(CodeGeneratorScope::Current()->has_valid_frame()); |
130 CodeGeneratorScope::Current()->frame()->Spill(target); | 130 CodeGeneratorScope::Current()->frame()->Spill(target); |
131 ASSERT(CodeGeneratorScope::Current()->allocator()->count(target) == 1); | 131 ASSERT(CodeGeneratorScope::Current()->allocator()->count(target) == 1); |
132 } | 132 } |
133 ASSERT(is_register()); | 133 ASSERT(is_register()); |
134 ASSERT(reg().is(target)); | 134 ASSERT(reg().is(target)); |
135 } | 135 } |
136 | 136 |
137 | 137 |
138 // ------------------------------------------------------------------------- | 138 // ------------------------------------------------------------------------- |
139 // RegisterAllocator implementation. | 139 // RegisterAllocator implementation. |
140 | 140 |
141 Result RegisterAllocator::AllocateByteRegisterWithoutSpilling() { | 141 Result RegisterAllocator::AllocateByteRegisterWithoutSpilling() { |
142 Result result = AllocateWithoutSpilling(); | 142 Result result = AllocateWithoutSpilling(); |
143 // Check that the register is a byte register. If not, unuse the | 143 // Check that the register is a byte register. If not, unuse the |
144 // register if valid and return an invalid result. | 144 // register if valid and return an invalid result. |
145 if (result.is_valid() && !result.reg().is_byte_register()) { | 145 if (result.is_valid() && !result.reg().is_byte_register()) { |
146 result.Unuse(); | 146 result.Unuse(); |
147 return Result(); | 147 return Result(); |
148 } | 148 } |
149 return result; | 149 return result; |
150 } | 150 } |
151 | 151 |
152 | 152 |
153 } } // namespace v8::internal | 153 } } // namespace v8::internal |
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