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Issue 11377132: Support all fast elements kinds in the major array operations. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressed comments (and rebased) Created 8 years, 1 month ago
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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 // 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
(...skipping 2756 matching lines...) Expand 10 before | Expand all | Expand 10 after
2767 Immediate(Map::kMaximumBitField2FastHoleySmiElementValue)); 2767 Immediate(Map::kMaximumBitField2FastHoleySmiElementValue));
2768 j(above, fail, distance); 2768 j(above, fail, distance);
2769 } 2769 }
2770 2770
2771 2771
2772 void MacroAssembler::StoreNumberToDoubleElements( 2772 void MacroAssembler::StoreNumberToDoubleElements(
2773 Register maybe_number, 2773 Register maybe_number,
2774 Register elements, 2774 Register elements,
2775 Register index, 2775 Register index,
2776 XMMRegister xmm_scratch, 2776 XMMRegister xmm_scratch,
2777 Label* fail) { 2777 Label* fail,
2778 int elements_offset) {
2778 Label smi_value, is_nan, maybe_nan, not_nan, have_double_value, done; 2779 Label smi_value, is_nan, maybe_nan, not_nan, have_double_value, done;
2779 2780
2780 JumpIfSmi(maybe_number, &smi_value, Label::kNear); 2781 JumpIfSmi(maybe_number, &smi_value, Label::kNear);
2781 2782
2782 CheckMap(maybe_number, 2783 CheckMap(maybe_number,
2783 isolate()->factory()->heap_number_map(), 2784 isolate()->factory()->heap_number_map(),
2784 fail, 2785 fail,
2785 DONT_DO_SMI_CHECK); 2786 DONT_DO_SMI_CHECK);
2786 2787
2787 // Double value, canonicalize NaN. 2788 // Double value, canonicalize NaN.
2788 uint32_t offset = HeapNumber::kValueOffset + sizeof(kHoleNanLower32); 2789 uint32_t offset = HeapNumber::kValueOffset + sizeof(kHoleNanLower32);
2789 cmpl(FieldOperand(maybe_number, offset), 2790 cmpl(FieldOperand(maybe_number, offset),
2790 Immediate(kNaNOrInfinityLowerBoundUpper32)); 2791 Immediate(kNaNOrInfinityLowerBoundUpper32));
2791 j(greater_equal, &maybe_nan, Label::kNear); 2792 j(greater_equal, &maybe_nan, Label::kNear);
2792 2793
2793 bind(&not_nan); 2794 bind(&not_nan);
2794 movsd(xmm_scratch, FieldOperand(maybe_number, HeapNumber::kValueOffset)); 2795 movsd(xmm_scratch, FieldOperand(maybe_number, HeapNumber::kValueOffset));
2795 bind(&have_double_value); 2796 bind(&have_double_value);
2796 movsd(FieldOperand(elements, index, times_8, FixedDoubleArray::kHeaderSize), 2797 movsd(FieldOperand(elements, index, times_8,
2798 FixedDoubleArray::kHeaderSize - elements_offset),
2797 xmm_scratch); 2799 xmm_scratch);
2798 jmp(&done); 2800 jmp(&done);
2799 2801
2800 bind(&maybe_nan); 2802 bind(&maybe_nan);
2801 // Could be NaN or Infinity. If fraction is not zero, it's NaN, otherwise 2803 // Could be NaN or Infinity. If fraction is not zero, it's NaN, otherwise
2802 // it's an Infinity, and the non-NaN code path applies. 2804 // it's an Infinity, and the non-NaN code path applies.
2803 j(greater, &is_nan, Label::kNear); 2805 j(greater, &is_nan, Label::kNear);
2804 cmpl(FieldOperand(maybe_number, HeapNumber::kValueOffset), Immediate(0)); 2806 cmpl(FieldOperand(maybe_number, HeapNumber::kValueOffset), Immediate(0));
2805 j(zero, &not_nan); 2807 j(zero, &not_nan);
2806 bind(&is_nan); 2808 bind(&is_nan);
2807 // Convert all NaNs to the same canonical NaN value when they are stored in 2809 // Convert all NaNs to the same canonical NaN value when they are stored in
2808 // the double array. 2810 // the double array.
2809 Set(kScratchRegister, BitCast<uint64_t>( 2811 Set(kScratchRegister, BitCast<uint64_t>(
2810 FixedDoubleArray::canonical_not_the_hole_nan_as_double())); 2812 FixedDoubleArray::canonical_not_the_hole_nan_as_double()));
2811 movq(xmm_scratch, kScratchRegister); 2813 movq(xmm_scratch, kScratchRegister);
2812 jmp(&have_double_value, Label::kNear); 2814 jmp(&have_double_value, Label::kNear);
2813 2815
2814 bind(&smi_value); 2816 bind(&smi_value);
2815 // Value is a smi. convert to a double and store. 2817 // Value is a smi. convert to a double and store.
2816 // Preserve original value. 2818 // Preserve original value.
2817 SmiToInteger32(kScratchRegister, maybe_number); 2819 SmiToInteger32(kScratchRegister, maybe_number);
2818 cvtlsi2sd(xmm_scratch, kScratchRegister); 2820 cvtlsi2sd(xmm_scratch, kScratchRegister);
2819 movsd(FieldOperand(elements, index, times_8, FixedDoubleArray::kHeaderSize), 2821 movsd(FieldOperand(elements, index, times_8,
2822 FixedDoubleArray::kHeaderSize - elements_offset),
2820 xmm_scratch); 2823 xmm_scratch);
2821 bind(&done); 2824 bind(&done);
2822 } 2825 }
2823 2826
2824 2827
2825 void MacroAssembler::CompareMap(Register obj, 2828 void MacroAssembler::CompareMap(Register obj,
2826 Handle<Map> map, 2829 Handle<Map> map,
2827 Label* early_success, 2830 Label* early_success,
2828 CompareMapMode mode) { 2831 CompareMapMode mode) {
2829 Cmp(FieldOperand(obj, HeapObject::kMapOffset), map); 2832 Cmp(FieldOperand(obj, HeapObject::kMapOffset), map);
(...skipping 1735 matching lines...) Expand 10 before | Expand all | Expand 10 after
4565 4568
4566 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); 4569 movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset));
4567 cmpq(rcx, null_value); 4570 cmpq(rcx, null_value);
4568 j(not_equal, &next); 4571 j(not_equal, &next);
4569 } 4572 }
4570 4573
4571 4574
4572 } } // namespace v8::internal 4575 } } // namespace v8::internal
4573 4576
4574 #endif // V8_TARGET_ARCH_X64 4577 #endif // V8_TARGET_ARCH_X64
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