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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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123 Label check_exit_codesize; | 123 Label check_exit_codesize; |
124 masm_->bind(&check_exit_codesize); | 124 masm_->bind(&check_exit_codesize); |
125 #endif | 125 #endif |
126 CodeGenerator::RecordPositions(masm_, position); | 126 CodeGenerator::RecordPositions(masm_, position); |
127 __ RecordJSReturn(); | 127 __ RecordJSReturn(); |
128 __ mov(sp, fp); | 128 __ mov(sp, fp); |
129 __ ldm(ia_w, sp, fp.bit() | lr.bit()); | 129 __ ldm(ia_w, sp, fp.bit() | lr.bit()); |
130 int num_parameters = function_->scope()->num_parameters(); | 130 int num_parameters = function_->scope()->num_parameters(); |
131 __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize)); | 131 __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize)); |
132 __ Jump(lr); | 132 __ Jump(lr); |
133 } | |
134 #ifdef DEBUG | 133 #ifdef DEBUG |
135 // Check that the size of the code used for returning matches what is | 134 // Check that the size of the code used for returning matches what is |
136 // expected by the debugger. The add instruction above is an addressing | 135 // expected by the debugger. The add instruction above is an addressing |
137 // mode 1 instruction where there are restrictions on which immediate values | 136 // mode 1 instruction where there are restrictions on which immediate values |
138 // can be encoded in the instruction and which immediate values requires | 137 // can be encoded in the instruction and which immediate values requires |
139 // use of an additional instruction for moving the immediate to a temporary | 138 // use of an additional instruction for moving the immediate to a temporary |
140 // register. | 139 // register. |
141 int expected_return_sequence_length = CodeGenerator::kJSReturnSequenceLength; | 140 int expected_return_sequence_length = CodeGenerator::kJSReturnSequenceLength; |
142 if (!masm_->ImmediateFitsAddrMode1Instruction((num_parameters + 1) * | 141 if (!masm_->ImmediateFitsAddrMode1Instruction((num_parameters + 1) * |
143 kPointerSize)) { | 142 kPointerSize)) { |
144 // Additional mov instruction generated. | 143 // Additional mov instruction generated. |
145 expected_return_sequence_length++; | 144 expected_return_sequence_length++; |
146 } | 145 } |
147 ASSERT_EQ(expected_return_sequence_length, | 146 ASSERT_EQ(expected_return_sequence_length, |
148 masm_->InstructionsGeneratedSince(&check_exit_codesize)); | 147 masm_->InstructionsGeneratedSince(&check_exit_codesize)); |
149 #endif | 148 #endif |
| 149 } |
150 } | 150 } |
151 | 151 |
152 | 152 |
153 void FastCodeGenerator::Move(Expression::Context context, Register source) { | 153 void FastCodeGenerator::Move(Expression::Context context, Register source) { |
154 switch (context) { | 154 switch (context) { |
155 case Expression::kUninitialized: | 155 case Expression::kUninitialized: |
156 UNREACHABLE(); | 156 UNREACHABLE(); |
157 case Expression::kEffect: | 157 case Expression::kEffect: |
158 break; | 158 break; |
159 case Expression::kValue: | 159 case Expression::kValue: |
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1287 true_label_ = saved_true; | 1287 true_label_ = saved_true; |
1288 false_label_ = saved_false; | 1288 false_label_ = saved_false; |
1289 // Convert current context to test context: End post-test code. | 1289 // Convert current context to test context: End post-test code. |
1290 } | 1290 } |
1291 | 1291 |
1292 | 1292 |
1293 #undef __ | 1293 #undef __ |
1294 | 1294 |
1295 | 1295 |
1296 } } // namespace v8::internal | 1296 } } // namespace v8::internal |
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