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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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107 if (FLAG_trace) { | 107 if (FLAG_trace) { |
108 __ push(rax); | 108 __ push(rax); |
109 __ CallRuntime(Runtime::kTraceExit, 1); | 109 __ CallRuntime(Runtime::kTraceExit, 1); |
110 } | 110 } |
111 __ RecordJSReturn(); | 111 __ RecordJSReturn(); |
112 __ movq(rsp, rbp); | 112 __ movq(rsp, rbp); |
113 __ pop(rbp); | 113 __ pop(rbp); |
114 int count = CfgGlobals::current()->fun()->scope()->num_parameters(); | 114 int count = CfgGlobals::current()->fun()->scope()->num_parameters(); |
115 __ ret((count + 1) * kPointerSize); | 115 __ ret((count + 1) * kPointerSize); |
116 // Add padding that will be overwritten by a debugger breakpoint. | 116 // Add padding that will be overwritten by a debugger breakpoint. |
117 // "movq rsp, rbp; pop rbp" has length 5. "ret k" has length 2. | 117 // "movq rsp, rbp; pop rbp" has length 4. "ret k" has length 3. |
118 const int kPadding = Debug::kX64JSReturnSequenceLength - 5 - 2; | 118 const int kPadding = Debug::kX64JSReturnSequenceLength - 4 - 3; |
119 for (int i = 0; i < kPadding; ++i) { | 119 for (int i = 0; i < kPadding; ++i) { |
120 __ int3(); | 120 __ int3(); |
121 } | 121 } |
122 } | 122 } |
123 | 123 |
124 | 124 |
125 void PropLoadInstr::Compile(MacroAssembler* masm) { | 125 void PropLoadInstr::Compile(MacroAssembler* masm) { |
126 // The key should not be on the stack---if it is a compiler-generated | 126 // The key should not be on the stack---if it is a compiler-generated |
127 // temporary it is in the accumulator. | 127 // temporary it is in the accumulator. |
128 ASSERT(!key()->is_on_stack()); | 128 ASSERT(!key()->is_on_stack()); |
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314 break; | 314 break; |
315 case NOT_ALLOCATED: | 315 case NOT_ALLOCATED: |
316 UNREACHABLE(); | 316 UNREACHABLE(); |
317 } | 317 } |
318 } | 318 } |
319 | 319 |
320 | 320 |
321 #undef __ | 321 #undef __ |
322 | 322 |
323 } } // namespace v8::internal | 323 } } // namespace v8::internal |
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