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Issue 6546036: Combine typed and pixel arrays. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: feedback, propagate external array type Created 9 years, 9 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 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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604 void GenerateCall(MacroAssembler* masm, ExternalReference function); 604 void GenerateCall(MacroAssembler* masm, ExternalReference function);
605 void GenerateCall(MacroAssembler* masm, Register target); 605 void GenerateCall(MacroAssembler* masm, Register target);
606 606
607 private: 607 private:
608 Major MajorKey() { return DirectCEntry; } 608 Major MajorKey() { return DirectCEntry; }
609 int MinorKey() { return 0; } 609 int MinorKey() { return 0; }
610 const char* GetName() { return "DirectCEntryStub"; } 610 const char* GetName() { return "DirectCEntryStub"; }
611 }; 611 };
612 612
613 613
614 // Generate code to load an element from a pixel array. The receiver is assumed
615 // to not be a smi and to have elements, the caller must guarantee this
616 // precondition. If key is not a smi, then the generated code branches to
617 // key_not_smi. Callers can specify NULL for key_not_smi to signal that a smi
618 // check has already been performed on key so that the smi check is not
619 // generated. If key is not a valid index within the bounds of the pixel array,
620 // the generated code jumps to out_of_range. receiver, key and elements are
621 // unchanged throughout the generated code sequence.
622 void GenerateFastPixelArrayLoad(MacroAssembler* masm,
623 Register receiver,
624 Register key,
625 Register elements_map,
626 Register elements,
627 Register scratch1,
628 Register scratch2,
629 Register result,
630 Label* not_pixel_array,
631 Label* key_not_smi,
632 Label* out_of_range);
633
634 // Generate code to store an element into a pixel array, clamping values between
635 // [0..255]. The receiver is assumed to not be a smi and to have elements, the
636 // caller must guarantee this precondition. If key is not a smi, then the
637 // generated code branches to key_not_smi. Callers can specify NULL for
638 // key_not_smi to signal that a smi check has already been performed on key so
639 // that the smi check is not generated. If value is not a smi, the generated
640 // code will branch to value_not_smi. If the receiver doesn't have pixel array
641 // elements, the generated code will branch to not_pixel_array, unless
642 // not_pixel_array is NULL, in which case the caller must ensure that the
643 // receiver has pixel array elements. If key is not a valid index within the
644 // bounds of the pixel array, the generated code jumps to out_of_range. If
645 // load_elements_from_receiver is true, then the elements of receiver is loaded
646 // into elements, otherwise elements is assumed to already be the receiver's
647 // elements. If load_elements_map_from_elements is true, elements_map is loaded
648 // from elements, otherwise it is assumed to already contain the element map.
649 void GenerateFastPixelArrayStore(MacroAssembler* masm,
650 Register receiver,
651 Register key,
652 Register value,
653 Register elements,
654 Register elements_map,
655 Register scratch1,
656 Register scratch2,
657 bool load_elements_from_receiver,
658 bool load_elements_map_from_elements,
659 Label* key_not_smi,
660 Label* value_not_smi,
661 Label* not_pixel_array,
662 Label* out_of_range);
663
664 } } // namespace v8::internal 614 } } // namespace v8::internal
665 615
666 #endif // V8_ARM_CODE_STUBS_ARM_H_ 616 #endif // V8_ARM_CODE_STUBS_ARM_H_
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