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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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498 #endif | 498 #endif |
499 | 499 |
500 // Leave the frame and return popping the arguments and the | 500 // Leave the frame and return popping the arguments and the |
501 // receiver. | 501 // receiver. |
502 frame_->Exit(); | 502 frame_->Exit(); |
503 masm_->ret((scope_->num_parameters() + 1) * kPointerSize); | 503 masm_->ret((scope_->num_parameters() + 1) * kPointerSize); |
504 #ifdef ENABLE_DEBUGGER_SUPPORT | 504 #ifdef ENABLE_DEBUGGER_SUPPORT |
505 // Add padding that will be overwritten by a debugger breakpoint. | 505 // Add padding that will be overwritten by a debugger breakpoint. |
506 // frame_->Exit() generates "movq rsp, rbp; pop rbp; ret k" | 506 // frame_->Exit() generates "movq rsp, rbp; pop rbp; ret k" |
507 // with length 7 (3 + 1 + 3). | 507 // with length 7 (3 + 1 + 3). |
508 const int kPadding = Debug::kX64JSReturnSequenceLength - 7; | 508 const int kPadding = Assembler::kJSReturnSequenceLength - 7; |
509 for (int i = 0; i < kPadding; ++i) { | 509 for (int i = 0; i < kPadding; ++i) { |
510 masm_->int3(); | 510 masm_->int3(); |
511 } | 511 } |
512 // Check that the size of the code used for returning matches what is | 512 // Check that the size of the code used for returning matches what is |
513 // expected by the debugger. | 513 // expected by the debugger. |
514 ASSERT_EQ(Debug::kX64JSReturnSequenceLength, | 514 ASSERT_EQ(Assembler::kJSReturnSequenceLength, |
515 masm_->SizeOfCodeGeneratedSince(&check_exit_codesize)); | 515 masm_->SizeOfCodeGeneratedSince(&check_exit_codesize)); |
516 #endif | 516 #endif |
517 DeleteFrame(); | 517 DeleteFrame(); |
518 } | 518 } |
519 | 519 |
520 | 520 |
521 #ifdef DEBUG | 521 #ifdef DEBUG |
522 bool CodeGenerator::HasValidEntryRegisters() { | 522 bool CodeGenerator::HasValidEntryRegisters() { |
523 return (allocator()->count(rax) == (frame()->is_used(rax) ? 1 : 0)) | 523 return (allocator()->count(rax) == (frame()->is_used(rax) ? 1 : 0)) |
524 && (allocator()->count(rbx) == (frame()->is_used(rbx) ? 1 : 0)) | 524 && (allocator()->count(rbx) == (frame()->is_used(rbx) ? 1 : 0)) |
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7871 masm.GetCode(&desc); | 7871 masm.GetCode(&desc); |
7872 // Call the function from C++. | 7872 // Call the function from C++. |
7873 return FUNCTION_CAST<ModuloFunction>(buffer); | 7873 return FUNCTION_CAST<ModuloFunction>(buffer); |
7874 } | 7874 } |
7875 | 7875 |
7876 #endif | 7876 #endif |
7877 | 7877 |
7878 #undef __ | 7878 #undef __ |
7879 | 7879 |
7880 } } // namespace v8::internal | 7880 } } // namespace v8::internal |
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