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Issue 219923005: MIPS: Fix PrepareKeyedOperand on MIPS. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved.7 1 // Copyright 2012 the V8 project authors. All rights reserved.7
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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3252 return MemOperand(base, 3252 return MemOperand(base,
3253 base_offset + (constant_key << element_size)); 3253 base_offset + (constant_key << element_size));
3254 } 3254 }
3255 3255
3256 if (additional_offset != 0) { 3256 if (additional_offset != 0) {
3257 if (shift_size >= 0) { 3257 if (shift_size >= 0) {
3258 __ sll(scratch0(), key, shift_size); 3258 __ sll(scratch0(), key, shift_size);
3259 __ Addu(scratch0(), scratch0(), Operand(base_offset)); 3259 __ Addu(scratch0(), scratch0(), Operand(base_offset));
3260 } else { 3260 } else {
3261 ASSERT_EQ(-1, shift_size); 3261 ASSERT_EQ(-1, shift_size);
3262 __ srl(scratch0(), key, 1); 3262 // Key can be negative, so using sra here.
3263 __ sra(scratch0(), key, 1);
3263 __ Addu(scratch0(), scratch0(), Operand(base_offset)); 3264 __ Addu(scratch0(), scratch0(), Operand(base_offset));
3264 } 3265 }
3265 __ Addu(scratch0(), base, scratch0()); 3266 __ Addu(scratch0(), base, scratch0());
3266 return MemOperand(scratch0()); 3267 return MemOperand(scratch0());
3267 } 3268 }
3268 3269
3269 if (additional_index != 0) { 3270 if (additional_index != 0) {
3270 additional_index *= 1 << (element_size - shift_size); 3271 additional_index *= 1 << (element_size - shift_size);
3271 __ Addu(scratch0(), key, Operand(additional_index)); 3272 __ Addu(scratch0(), key, Operand(additional_index));
3272 } 3273 }
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5814 __ Subu(scratch, result, scratch); 5815 __ Subu(scratch, result, scratch);
5815 __ lw(result, FieldMemOperand(scratch, 5816 __ lw(result, FieldMemOperand(scratch,
5816 FixedArray::kHeaderSize - kPointerSize)); 5817 FixedArray::kHeaderSize - kPointerSize));
5817 __ bind(&done); 5818 __ bind(&done);
5818 } 5819 }
5819 5820
5820 5821
5821 #undef __ 5822 #undef __
5822 5823
5823 } } // namespace v8::internal 5824 } } // namespace v8::internal
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