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Issue 9316061: MIPS: Handle single element array growth + transition in generic KeyedStoreIC (Closed)
Patch Set: rebased on r10618. Created 8 years, 10 months 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
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109 // and filled with the hole values. 109 // and filled with the hole values.
110 static void AllocateEmptyJSArray(MacroAssembler* masm, 110 static void AllocateEmptyJSArray(MacroAssembler* masm,
111 Register array_function, 111 Register array_function,
112 Register result, 112 Register result,
113 Register scratch1, 113 Register scratch1,
114 Register scratch2, 114 Register scratch2,
115 Register scratch3, 115 Register scratch3,
116 Label* gc_required) { 116 Label* gc_required) {
117 const int initial_capacity = JSArray::kPreallocatedArrayElements; 117 const int initial_capacity = JSArray::kPreallocatedArrayElements;
118 STATIC_ASSERT(initial_capacity >= 0); 118 STATIC_ASSERT(initial_capacity >= 0);
119 __ LoadGlobalInitialConstructedArrayMap(array_function, scratch2, scratch1); 119 __ LoadInitialArrayMap(array_function, scratch2, scratch1);
120 120
121 // Allocate the JSArray object together with space for a fixed array with the 121 // Allocate the JSArray object together with space for a fixed array with the
122 // requested elements. 122 // requested elements.
123 int size = JSArray::kSize; 123 int size = JSArray::kSize;
124 if (initial_capacity > 0) { 124 if (initial_capacity > 0) {
125 size += FixedArray::SizeFor(initial_capacity); 125 size += FixedArray::SizeFor(initial_capacity);
126 } 126 }
127 __ AllocateInNewSpace(size, 127 __ AllocateInNewSpace(size,
128 result, 128 result,
129 scratch2, 129 scratch2,
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205 Register array_function, // Array function. 205 Register array_function, // Array function.
206 Register array_size, // As a smi, cannot be 0. 206 Register array_size, // As a smi, cannot be 0.
207 Register result, 207 Register result,
208 Register elements_array_storage, 208 Register elements_array_storage,
209 Register elements_array_end, 209 Register elements_array_end,
210 Register scratch1, 210 Register scratch1,
211 Register scratch2, 211 Register scratch2,
212 bool fill_with_hole, 212 bool fill_with_hole,
213 Label* gc_required) { 213 Label* gc_required) {
214 // Load the initial map from the array function. 214 // Load the initial map from the array function.
215 __ LoadGlobalInitialConstructedArrayMap(array_function, scratch2, 215 __ LoadInitialArrayMap(array_function, scratch2, elements_array_storage);
216 elements_array_storage);
217 216
218 if (FLAG_debug_code) { // Assert that array size is not zero. 217 if (FLAG_debug_code) { // Assert that array size is not zero.
219 __ Assert( 218 __ Assert(
220 ne, "array size is unexpectedly 0", array_size, Operand(zero_reg)); 219 ne, "array size is unexpectedly 0", array_size, Operand(zero_reg));
221 } 220 }
222 221
223 // Allocate the JSArray object together with space for a FixedArray with the 222 // Allocate the JSArray object together with space for a FixedArray with the
224 // requested number of elements. 223 // requested number of elements.
225 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0); 224 STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0);
226 __ li(elements_array_end, 225 __ li(elements_array_end,
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1773 __ bind(&dont_adapt_arguments); 1772 __ bind(&dont_adapt_arguments);
1774 __ Jump(a3); 1773 __ Jump(a3);
1775 } 1774 }
1776 1775
1777 1776
1778 #undef __ 1777 #undef __
1779 1778
1780 } } // namespace v8::internal 1779 } } // namespace v8::internal
1781 1780
1782 #endif // V8_TARGET_ARCH_MIPS 1781 #endif // V8_TARGET_ARCH_MIPS
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