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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_X87 | 5 #if V8_TARGET_ARCH_X87 |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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356 if (create_implicit_receiver) { | 356 if (create_implicit_receiver) { |
357 // If the result is an object (in the ECMA sense), we should get rid | 357 // If the result is an object (in the ECMA sense), we should get rid |
358 // of the receiver and use the result; see ECMA-262 section 13.2.2-7 | 358 // of the receiver and use the result; see ECMA-262 section 13.2.2-7 |
359 // on page 74. | 359 // on page 74. |
360 Label use_receiver, exit; | 360 Label use_receiver, exit; |
361 | 361 |
362 // If the result is a smi, it is *not* an object in the ECMA sense. | 362 // If the result is a smi, it is *not* an object in the ECMA sense. |
363 __ JumpIfSmi(eax, &use_receiver); | 363 __ JumpIfSmi(eax, &use_receiver); |
364 | 364 |
365 // If the type of the result (stored in its map) is less than | 365 // If the type of the result (stored in its map) is less than |
366 // FIRST_SPEC_OBJECT_TYPE, it is not an object in the ECMA sense. | 366 // FIRST_JS_RECEIVER_TYPE, it is not an object in the ECMA sense. |
367 __ CmpObjectType(eax, FIRST_SPEC_OBJECT_TYPE, ecx); | 367 __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); |
368 __ j(above_equal, &exit); | 368 __ j(above_equal, &exit); |
369 | 369 |
370 // Throw away the result of the constructor invocation and use the | 370 // Throw away the result of the constructor invocation and use the |
371 // on-stack receiver as the result. | 371 // on-stack receiver as the result. |
372 __ bind(&use_receiver); | 372 __ bind(&use_receiver); |
373 __ mov(eax, Operand(esp, 0)); | 373 __ mov(eax, Operand(esp, 0)); |
374 | 374 |
375 // Restore the arguments count and leave the construct frame. The | 375 // Restore the arguments count and leave the construct frame. The |
376 // arguments | 376 // arguments |
377 // count is stored below the reciever and the new.target. | 377 // count is stored below the reciever and the new.target. |
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1994 | 1994 |
1995 __ bind(&ok); | 1995 __ bind(&ok); |
1996 __ ret(0); | 1996 __ ret(0); |
1997 } | 1997 } |
1998 | 1998 |
1999 #undef __ | 1999 #undef __ |
2000 } // namespace internal | 2000 } // namespace internal |
2001 } // namespace v8 | 2001 } // namespace v8 |
2002 | 2002 |
2003 #endif // V8_TARGET_ARCH_X87 | 2003 #endif // V8_TARGET_ARCH_X87 |
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