1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/v8.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if V8_TARGET_ARCH_MIPS64 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/codegen.h" 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/macro-assembler.h" 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/mips64/simulator-mips64.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochnamespace v8 { 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochnamespace internal { 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define __ masm. 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(USE_SIMULATOR) 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbyte* fast_exp_mips_machine_code = NULL; 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochdouble fast_exp_simulator(double x) { 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Simulator::current(Isolate::Current())->CallFP( 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch fast_exp_mips_machine_code, x, 0); 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochUnaryMathFunction CreateExpFunction() { 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_fast_math) return &std::exp; 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch size_t actual_size; 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* buffer = 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (buffer == NULL) return &std::exp; 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalReference::InitializeMathExpData(); 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister input = f12; 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister result = f0; 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister double_scratch1 = f4; 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister double_scratch2 = f6; 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = a4; 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = a5; 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp3 = a6; 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsMipsSoftFloatABI) { 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Input value is in f12 anyway, nothing to do. 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(input, a0, a1); 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(temp3, temp2, temp1); 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathExpGenerator::EmitMathExp( 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &masm, input, result, double_scratch1, double_scratch2, 56b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch temp1, temp2, temp3); 57b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pop(temp3, temp2, temp1); 58b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsMipsSoftFloatABI) { 59b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Result is already in f0, nothing to do. 60b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(v0, v1, result); 62b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Ret(); 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeDesc desc; 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm.GetCode(&desc); 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!RelocInfo::RequiresRelocation(desc)); 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatures::FlushICache(buffer, actual_size); 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base::OS::ProtectCode(buffer, actual_size); 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if !defined(USE_SIMULATOR) 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FUNCTION_CAST<UnaryMathFunction>(buffer); 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#else 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch fast_exp_mips_machine_code = buffer; 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return &fast_exp_simulator; 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(V8_HOST_ARCH_MIPS) 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMemCopyUint8Function CreateMemCopyUint8Function(MemCopyUint8Function stub) { 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(USE_SIMULATOR) 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return stub; 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#else 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch size_t actual_size; 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* buffer = 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<byte*>(base::OS::Allocate(3 * KB, &actual_size, true)); 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (buffer == NULL) return stub; 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This code assumes that cache lines are 32 bytes and if the cache line is 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // larger it will not work correctly. 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label lastb, unaligned, aligned, chkw, 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch loop16w, chk1w, wordCopy_loop, skip_pref, lastbloop, 100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch leave, ua_chk16w, ua_loop16w, ua_skip_pref, ua_chkw, 101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ua_chk1w, ua_wordCopy_loop, ua_smallCopy, ua_smallCopy_loop; 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The size of each prefetch. 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t pref_chunk = 32; 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The maximum size of a prefetch, it must not be less then pref_chunk. 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the real size of a prefetch is greater then max_pref_size and 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the kPrefHintPrepareForStore hint is used, the code will not work 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // correctly. 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t max_pref_size = 128; 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(pref_chunk < max_pref_size); 111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // pref_limit is set based on the fact that we never use an offset 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // greater then 5 on a store pref and that a single pref can 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // never be larger then max_pref_size. 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t pref_limit = (5 * pref_chunk) + max_pref_size; 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t pref_hint_load = kPrefHintLoadStreamed; 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t pref_hint_store = kPrefHintPrepareForStore; 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t loadstore_chunk = 4; 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The initial prefetches may fetch bytes that are before the buffer being 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // copied. Start copies with an offset of 4 so avoid this situation when 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // using kPrefHintPrepareForStore. 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(pref_hint_store != kPrefHintPrepareForStore || 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pref_chunk * 4 >= max_pref_size); 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the size is less than 8, go to lastb. Regardless of size, 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // copy dst pointer to v0 for the retuen value. 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ slti(a6, a2, 2 * loadstore_chunk); 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a6, zero_reg, &lastb); 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(v0, a0); // In delay slot. 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If src and dst have different alignments, go to unaligned, if they 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have the same alignment (but are not actually aligned) do a partial 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // load/store to make them aligned. If they are both already aligned 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // we can start copying at aligned. 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ xor_(t8, a1, a0); 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(t8, t8, loadstore_chunk - 1); // t8 is a0/a1 word-displacement. 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(t8, zero_reg, &unaligned); 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a3, zero_reg, a0); // In delay slot. 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(a3, a3, loadstore_chunk - 1); // Copy a3 bytes to align a0/a1. 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a3, zero_reg, &aligned); // Already aligned. 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a2, a2, a3); // In delay slot. a2 is the remining bytes count. 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t8, MemOperand(a1)); 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a1, a1, a3); 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ swr(t8, MemOperand(a0)); 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a0, a0, a3); 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Now dst/src are both aligned to (word) aligned addresses. Set a2 to 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // count how many bytes we have to copy after all the 64 byte chunks are 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // copied and a3 to the dst pointer after all the 64 byte chunks have been 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // copied. We will loop, incrementing a0 and a1 until a0 equals a3. 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&aligned); 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(t8, a2, 0x3f); 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &chkw); // Less than 64? 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a3, a2, t8); // In delay slot. 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a3); // Now a3 is the final dst after loop. 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // When in the loop we prefetch with kPrefHintPrepareForStore hint, 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in this case the a0+x should be past the "a4-32" address. This means: 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // for x=128 the last "safe" a0 address is "a4-160". Alternatively, for 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // x=64 the last "safe" a0 address is "a4-96". In the current version we 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // will use "pref hint, 128(a0)", so "a4-160" is the limit. 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store == kPrefHintPrepareForStore) { 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a4, a0, a2); // a4 is the "past the end" address. 166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Subu(t9, a4, pref_limit); // t9 is the "last safe pref" address. 167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 0 * pref_chunk)); 170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 1 * pref_chunk)); 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 2 * pref_chunk)); 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 3 * pref_chunk)); 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store != kPrefHintPrepareForStore) { 175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 1 * pref_chunk)); 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 2 * pref_chunk)); 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 3 * pref_chunk)); 178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&loop16w); 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a4, MemOperand(a1)); 181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store == kPrefHintPrepareForStore) { 183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sltu(v1, t9, a0); // If a0 > t9, don't use next prefetch. 184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(USE_DELAY_SLOT, &skip_pref, gt, v1, Operand(zero_reg)); 185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a5, MemOperand(a1, 1, loadstore_chunk)); // Maybe in delay slot. 187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 4 * pref_chunk)); 189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 5 * pref_chunk)); 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&skip_pref); 192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a6, MemOperand(a1, 2, loadstore_chunk)); 193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a7, MemOperand(a1, 3, loadstore_chunk)); 194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t0, MemOperand(a1, 4, loadstore_chunk)); 195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t1, MemOperand(a1, 5, loadstore_chunk)); 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t2, MemOperand(a1, 6, loadstore_chunk)); 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t3, MemOperand(a1, 7, loadstore_chunk)); 198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 4 * pref_chunk)); 199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0)); 201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 1, loadstore_chunk)); 202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 2, loadstore_chunk)); 203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 3, loadstore_chunk)); 204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 4, loadstore_chunk)); 205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 5, loadstore_chunk)); 206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 6, loadstore_chunk)); 207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 7, loadstore_chunk)); 208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a4, MemOperand(a1, 8, loadstore_chunk)); 210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a5, MemOperand(a1, 9, loadstore_chunk)); 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a6, MemOperand(a1, 10, loadstore_chunk)); 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a7, MemOperand(a1, 11, loadstore_chunk)); 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t0, MemOperand(a1, 12, loadstore_chunk)); 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t1, MemOperand(a1, 13, loadstore_chunk)); 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t2, MemOperand(a1, 14, loadstore_chunk)); 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t3, MemOperand(a1, 15, loadstore_chunk)); 217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 5 * pref_chunk)); 218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0, 8, loadstore_chunk)); 220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 9, loadstore_chunk)); 221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 10, loadstore_chunk)); 222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 11, loadstore_chunk)); 223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 12, loadstore_chunk)); 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 13, loadstore_chunk)); 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 14, loadstore_chunk)); 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 15, loadstore_chunk)); 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 16 * loadstore_chunk); 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &loop16w); 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 16 * loadstore_chunk); // In delay slot. 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(a2, t8); 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Here we have src and dest word-aligned but less than 64-bytes to go. 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for a 32 bytes chunk and copy if there is one. Otherwise jump 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // down to chk1w to handle the tail end of the copy. 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&chkw); 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 0 * pref_chunk)); 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(t8, a2, 0x1f); 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &chk1w); // Less than 32? 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); // In delay slot. 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a4, MemOperand(a1)); 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a5, MemOperand(a1, 1, loadstore_chunk)); 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a6, MemOperand(a1, 2, loadstore_chunk)); 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a7, MemOperand(a1, 3, loadstore_chunk)); 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t0, MemOperand(a1, 4, loadstore_chunk)); 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t1, MemOperand(a1, 5, loadstore_chunk)); 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t2, MemOperand(a1, 6, loadstore_chunk)); 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(t3, MemOperand(a1, 7, loadstore_chunk)); 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 8 * loadstore_chunk); 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0)); 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 1, loadstore_chunk)); 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 2, loadstore_chunk)); 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 3, loadstore_chunk)); 253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 4, loadstore_chunk)); 254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 5, loadstore_chunk)); 255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 6, loadstore_chunk)); 256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 7, loadstore_chunk)); 257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 8 * loadstore_chunk); 258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Here we have less than 32 bytes to copy. Set up for a loop to copy 260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // one word at a time. Set a2 to count how many bytes we have to copy 261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // after all the word chunks are copied and a3 to the dst pointer after 262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // all the word chunks have been copied. We will loop, incrementing a0 263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // and a1 untill a0 equals a3. 264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&chk1w); 265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(a2, t8, loadstore_chunk - 1); 266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &lastb); 267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a3, t8, a2); // In delay slot. 268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a3); 269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&wordCopy_loop); 271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(a7, MemOperand(a1)); 272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, loadstore_chunk); 273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, loadstore_chunk); 274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &wordCopy_loop); 275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, -1, loadstore_chunk)); // In delay slot. 276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&lastb); 278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&leave, le, a2, Operand(zero_reg)); 279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a2); 280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&lastbloop); 282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lb(v1, MemOperand(a1)); 283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 1); 284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 1); 285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &lastbloop); 286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sb(v1, MemOperand(a0, -1)); // In delay slot. 287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&leave); 289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jr(ra); 290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); 291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Unaligned case. Only the dst gets aligned so we need to do partial 293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // loads of the source followed by normal stores to the dst (once we 294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have aligned the destination). 295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&unaligned); 296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(a3, a3, loadstore_chunk - 1); // Copy a3 bytes to align a0/a1. 297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a3, zero_reg, &ua_chk16w); 298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a2, a2, a3); // In delay slot. 299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(v1, MemOperand(a1)); 301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(v1, 302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 1, loadstore_chunk, MemOperand::offset_minus_one)); 303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a1, a1, a3); 304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ swr(v1, MemOperand(a0)); 305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a0, a0, a3); 306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Now the dst (but not the source) is aligned. Set a2 to count how many 308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // bytes we have to copy after all the 64 byte chunks are copied and a3 to 309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the dst pointer after all the 64 byte chunks have been copied. We will 310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // loop, incrementing a0 and a1 until a0 equals a3. 311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_chk16w); 312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(t8, a2, 0x3f); 313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &ua_chkw); 314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a3, a2, t8); // In delay slot. 315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a3); 316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store == kPrefHintPrepareForStore) { 318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a4, a0, a2); 319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Subu(t9, a4, pref_limit); 320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 0 * pref_chunk)); 323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 1 * pref_chunk)); 324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 2 * pref_chunk)); 325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store != kPrefHintPrepareForStore) { 327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 1 * pref_chunk)); 328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 2 * pref_chunk)); 329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 3 * pref_chunk)); 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_loop16w); 333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 3 * pref_chunk)); 334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a4, MemOperand(a1)); 335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a5, MemOperand(a1, 1, loadstore_chunk)); 336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a6, MemOperand(a1, 2, loadstore_chunk)); 337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pref_hint_store == kPrefHintPrepareForStore) { 339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sltu(v1, t9, a0); 340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(USE_DELAY_SLOT, &ua_skip_pref, gt, v1, Operand(zero_reg)); 341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a7, MemOperand(a1, 3, loadstore_chunk)); // Maybe in delay slot. 343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 4 * pref_chunk)); 345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_store, MemOperand(a0, 5 * pref_chunk)); 346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_skip_pref); 348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t0, MemOperand(a1, 4, loadstore_chunk)); 349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t1, MemOperand(a1, 5, loadstore_chunk)); 350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t2, MemOperand(a1, 6, loadstore_chunk)); 351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t3, MemOperand(a1, 7, loadstore_chunk)); 352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a4, 353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 1, loadstore_chunk, MemOperand::offset_minus_one)); 354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a5, 355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 2, loadstore_chunk, MemOperand::offset_minus_one)); 356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a6, 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 3, loadstore_chunk, MemOperand::offset_minus_one)); 358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a7, 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 4, loadstore_chunk, MemOperand::offset_minus_one)); 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t0, 361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 5, loadstore_chunk, MemOperand::offset_minus_one)); 362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t1, 363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 6, loadstore_chunk, MemOperand::offset_minus_one)); 364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t2, 365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 7, loadstore_chunk, MemOperand::offset_minus_one)); 366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t3, 367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 8, loadstore_chunk, MemOperand::offset_minus_one)); 368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 4 * pref_chunk)); 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0)); 370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 1, loadstore_chunk)); 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 2, loadstore_chunk)); 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 3, loadstore_chunk)); 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 4, loadstore_chunk)); 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 5, loadstore_chunk)); 375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 6, loadstore_chunk)); 376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 7, loadstore_chunk)); 377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a4, MemOperand(a1, 8, loadstore_chunk)); 378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a5, MemOperand(a1, 9, loadstore_chunk)); 379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a6, MemOperand(a1, 10, loadstore_chunk)); 380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a7, MemOperand(a1, 11, loadstore_chunk)); 381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t0, MemOperand(a1, 12, loadstore_chunk)); 382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t1, MemOperand(a1, 13, loadstore_chunk)); 383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t2, MemOperand(a1, 14, loadstore_chunk)); 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t3, MemOperand(a1, 15, loadstore_chunk)); 385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a4, 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 9, loadstore_chunk, MemOperand::offset_minus_one)); 387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a5, 388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 10, loadstore_chunk, MemOperand::offset_minus_one)); 389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a6, 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 11, loadstore_chunk, MemOperand::offset_minus_one)); 391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a7, 392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 12, loadstore_chunk, MemOperand::offset_minus_one)); 393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t0, 394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 13, loadstore_chunk, MemOperand::offset_minus_one)); 395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t1, 396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 14, loadstore_chunk, MemOperand::offset_minus_one)); 397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t2, 398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 15, loadstore_chunk, MemOperand::offset_minus_one)); 399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t3, 400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 16, loadstore_chunk, MemOperand::offset_minus_one)); 401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1, 5 * pref_chunk)); 402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0, 8, loadstore_chunk)); 403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 9, loadstore_chunk)); 404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 10, loadstore_chunk)); 405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 11, loadstore_chunk)); 406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 12, loadstore_chunk)); 407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 13, loadstore_chunk)); 408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 14, loadstore_chunk)); 409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 15, loadstore_chunk)); 410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 16 * loadstore_chunk); 411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &ua_loop16w); 412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 16 * loadstore_chunk); // In delay slot. 413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(a2, t8); 414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Here less than 64-bytes. Check for 416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // a 32 byte chunk and copy if there is one. Otherwise jump down to 417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // ua_chk1w to handle the tail end of the copy. 418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_chkw); 419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Pref(pref_hint_load, MemOperand(a1)); 420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(t8, a2, 0x1f); 421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &ua_chk1w); 423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); // In delay slot. 424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a4, MemOperand(a1)); 425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a5, MemOperand(a1, 1, loadstore_chunk)); 426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a6, MemOperand(a1, 2, loadstore_chunk)); 427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(a7, MemOperand(a1, 3, loadstore_chunk)); 428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t0, MemOperand(a1, 4, loadstore_chunk)); 429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t1, MemOperand(a1, 5, loadstore_chunk)); 430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t2, MemOperand(a1, 6, loadstore_chunk)); 431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(t3, MemOperand(a1, 7, loadstore_chunk)); 432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a4, 433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 1, loadstore_chunk, MemOperand::offset_minus_one)); 434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a5, 435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 2, loadstore_chunk, MemOperand::offset_minus_one)); 436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a6, 437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 3, loadstore_chunk, MemOperand::offset_minus_one)); 438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(a7, 439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 4, loadstore_chunk, MemOperand::offset_minus_one)); 440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t0, 441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 5, loadstore_chunk, MemOperand::offset_minus_one)); 442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t1, 443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 6, loadstore_chunk, MemOperand::offset_minus_one)); 444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t2, 445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 7, loadstore_chunk, MemOperand::offset_minus_one)); 446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(t3, 447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 8, loadstore_chunk, MemOperand::offset_minus_one)); 448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 8 * loadstore_chunk); 449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a4, MemOperand(a0)); 450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a5, MemOperand(a0, 1, loadstore_chunk)); 451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a6, MemOperand(a0, 2, loadstore_chunk)); 452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(a7, MemOperand(a0, 3, loadstore_chunk)); 453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t0, MemOperand(a0, 4, loadstore_chunk)); 454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t1, MemOperand(a0, 5, loadstore_chunk)); 455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t2, MemOperand(a0, 6, loadstore_chunk)); 456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(t3, MemOperand(a0, 7, loadstore_chunk)); 457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 8 * loadstore_chunk); 458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Less than 32 bytes to copy. Set up for a loop to 460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // copy one word at a time. 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_chk1w); 462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ andi(a2, t8, loadstore_chunk - 1); 463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, t8, &ua_smallCopy); 464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ subu(a3, t8, a2); // In delay slot. 465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a3); 466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_wordCopy_loop); 468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwr(v1, MemOperand(a1)); 469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwl(v1, 470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(a1, 1, loadstore_chunk, MemOperand::offset_minus_one)); 471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, loadstore_chunk); 472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, loadstore_chunk); 473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &ua_wordCopy_loop); 474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(v1, MemOperand(a0, -1, loadstore_chunk)); // In delay slot. 475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Copy the last 8 bytes. 477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_smallCopy); 478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ beq(a2, zero_reg, &leave); 479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addu(a3, a0, a2); // In delay slot. 480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ua_smallCopy_loop); 482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lb(v1, MemOperand(a1)); 483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a0, a0, 1); 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ addiu(a1, a1, 1); 485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bne(a0, a3, &ua_smallCopy_loop); 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sb(v1, MemOperand(a0, -1)); // In delay slot. 487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jr(ra); 489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); 490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeDesc desc; 492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm.GetCode(&desc); 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!RelocInfo::RequiresRelocation(desc)); 494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatures::FlushICache(buffer, actual_size); 496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base::OS::ProtectCode(buffer, actual_size); 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FUNCTION_CAST<MemCopyUint8Function>(buffer); 498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochUnaryMathFunction CreateSqrtFunction() { 503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(USE_SIMULATOR) 504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return &std::sqrt; 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#else 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch size_t actual_size; 507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* buffer = 508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<byte*>(base::OS::Allocate(1 * KB, &actual_size, true)); 509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (buffer == NULL) return &std::sqrt; 510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler masm(NULL, buffer, static_cast<int>(actual_size)); 512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovFromFloatParameter(f12); 514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sqrt_d(f0, f12); 515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovToFloatResult(f0); 516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Ret(); 517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeDesc desc; 519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm.GetCode(&desc); 520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!RelocInfo::RequiresRelocation(desc)); 521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatures::FlushICache(buffer, actual_size); 523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base::OS::ProtectCode(buffer, actual_size); 524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FUNCTION_CAST<UnaryMathFunction>(buffer); 525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef __ 529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// ------------------------------------------------------------------------- 532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Platform-specific RuntimeCallHelper functions. 533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid StubRuntimeCallHelper::BeforeCall(MacroAssembler* masm) const { 535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm->EnterFrame(StackFrame::INTERNAL); 536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!masm->has_frame()); 537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm->set_has_frame(true); 538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const { 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm->LeaveFrame(StackFrame::INTERNAL); 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(masm->has_frame()); 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm->set_has_frame(false); 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// ------------------------------------------------------------------------- 549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Code generators 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define __ ACCESS_MASM(masm) 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid ElementsTransitionGenerator::GenerateMapChangeElementsTransition( 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler* masm, 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register receiver, 556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key, 557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value, 558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register target_map, 559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationSiteMode mode, 560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* allocation_memento_found) { 561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch_elements = a4; 562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!AreAliased(receiver, key, value, target_map, 563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch_elements)); 564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (mode == TRACK_ALLOCATION_SITE) { 566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfJSArrayHasAllocationMemento( 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch receiver, scratch_elements, allocation_memento_found); 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Set transitioned map. 571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(target_map, FieldMemOperand(receiver, HeapObject::kMapOffset)); 572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject::kMapOffset, 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target_map, 575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch t1, 576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasNotBeenSaved, 577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid ElementsTransitionGenerator::GenerateSmiToDouble( 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler* masm, 585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register receiver, 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key, 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value, 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register target_map, 589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationSiteMode mode, 590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* fail) { 591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Register ra contains the return address. 592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label loop, entry, convert_hole, gc_required, only_change_map, done; 593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = a4; 594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = a5; 595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register array = a6; 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register array_end = array; 597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // target_map parameter can be clobbered. 599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch1 = target_map; 600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = t1; 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch3 = a7; 602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify input registers don't conflict with locals. 604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!AreAliased(receiver, key, value, target_map, 605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements, length, array, scratch2)); 606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = t2; 608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (mode == TRACK_ALLOCATION_SITE) { 609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfJSArrayHasAllocationMemento(receiver, elements, fail); 610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for empty arrays, which only require a map transition and no changes 613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to the backing store. 614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); 615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); 616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&only_change_map, eq, at, Operand(elements)); 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(ra); 619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(length, FieldMemOperand(elements, FixedArray::kLengthOffset)); 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // elements: source FixedArray 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // length: number of elements (smi-tagged) 622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Allocate new FixedDoubleArray. 624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiScale(scratch, length, kDoubleSizeLog2); 625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch, scratch, FixedDoubleArray::kHeaderSize); 626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(scratch, array, t3, scratch2, &gc_required, DOUBLE_ALIGNMENT); 627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // array: destination FixedDoubleArray, not tagged as heap object 628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Set destination FixedDoubleArray's length and map. 630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch2, Heap::kFixedDoubleArrayMapRootIndex); 631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(length, MemOperand(array, FixedDoubleArray::kLengthOffset)); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Update receiver's map. 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(scratch2, MemOperand(array, HeapObject::kMapOffset)); 634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(target_map, FieldMemOperand(receiver, HeapObject::kMapOffset)); 636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject::kMapOffset, 638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target_map, 639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch2, 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasBeenSaved, 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_REMEMBERED_SET, 643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Replace receiver's backing store with newly created FixedDoubleArray. 645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch1, array, Operand(kHeapObjectTag)); 646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(scratch1, FieldMemOperand(a2, JSObject::kElementsOffset)); 647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::kElementsOffset, 649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch1, 650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch2, 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasBeenSaved, 652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prepare for conversion loop. 658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch1, elements, 659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(FixedArray::kHeaderSize - kHeapObjectTag)); 660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch3, array, Operand(FixedDoubleArray::kHeaderSize)); 661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiScale(array_end, length, kDoubleSizeLog2); 662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(array_end, array_end, scratch3); 663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Repurpose registers no longer in use. 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register hole_lower = elements; 666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register hole_upper = length; 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ li(hole_lower, Operand(kHoleNanLower32)); 668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // scratch1: begin of source FixedArray element fields, not tagged 669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // hole_lower: kHoleNanLower32 670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // hole_upper: kHoleNanUpper32 671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // array_end: end of destination FixedDoubleArray, not tagged 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // scratch3: begin of FixedDoubleArray element fields, not tagged 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(USE_DELAY_SLOT, &entry); 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ li(hole_upper, Operand(kHoleNanUpper32)); // In delay slot. 675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&only_change_map); 677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(target_map, FieldMemOperand(receiver, HeapObject::kMapOffset)); 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject::kMapOffset, 680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target_map, 681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch2, 682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasBeenSaved, 683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_REMEMBERED_SET, 685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&done); 687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Call into runtime if GC is required. 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&gc_required); 690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(ra, MemOperand(sp, 0)); 691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(USE_DELAY_SLOT, fail); 692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ daddiu(sp, sp, kPointerSize); // In delay slot. 693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert and copy elements. 695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&loop); 696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(scratch2, MemOperand(scratch1)); 697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch1, scratch1, kIntSize); 698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // scratch2: current element 699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfNotSmi(scratch2, &convert_hole); 700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(scratch2); 701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Normal smi, convert to double and store. 703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mtc1(scratch2, f0); 704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cvt_d_w(f0, f0); 705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdc1(f0, MemOperand(scratch3)); 706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(USE_DELAY_SLOT, &entry); 707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ daddiu(scratch3, scratch3, kDoubleSize); // In delay slot. 708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Hole found, store the-hole NaN. 710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert_hole); 711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code) { 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Restore a "smi-untagged" heap object. 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Or(scratch2, scratch2, Operand(1)); 714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(at, Heap::kTheHoleValueRootIndex); 715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Assert(eq, kObjectFoundInSmiOnlyArray, at, Operand(scratch2)); 716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // mantissa 718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(hole_lower, MemOperand(scratch3)); 719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // exponent 720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(hole_upper, MemOperand(scratch3, kIntSize)); 721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(scratch3, scratch3, kDoubleSize); 722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&entry); 724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&loop, lt, scratch3, Operand(array_end)); 725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(ra); 728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid ElementsTransitionGenerator::GenerateDoubleToObject( 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MacroAssembler* masm, 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register receiver, 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key, 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value, 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register target_map, 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationSiteMode mode, 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* fail) { 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Register ra contains the return address. 740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label entry, loop, convert_hole, gc_required, only_change_map; 741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = a4; 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register array = a6; 743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = a5; 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = t1; 745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify input registers don't conflict with locals. 747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!AreAliased(receiver, key, value, target_map, 748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements, array, length, scratch)); 749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (mode == TRACK_ALLOCATION_SITE) { 750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfJSArrayHasAllocationMemento(receiver, elements, fail); 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for empty arrays, which only require a map transition and no changes 754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to the backing store. 755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); 756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); 757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&only_change_map, eq, at, Operand(elements)); 758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MultiPush( 760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value.bit() | key.bit() | receiver.bit() | target_map.bit() | ra.bit()); 761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(length, FieldMemOperand(elements, FixedArray::kLengthOffset)); 763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // elements: source FixedArray 764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // length: number of elements (smi-tagged) 765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Allocate new FixedArray. 767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Re-use value and target_map registers, as they have been saved on the 768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // stack. 769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register array_size = value; 770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register allocate_scratch = target_map; 771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiScale(array_size, length, kPointerSizeLog2); 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(array_size, array_size, FixedDoubleArray::kHeaderSize); 773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(array_size, array, allocate_scratch, scratch, &gc_required, 774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NO_ALLOCATION_FLAGS); 775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // array: destination FixedArray, not tagged as heap object 776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Set destination FixedDoubleArray's length and map. 777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex); 778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(length, MemOperand(array, FixedDoubleArray::kLengthOffset)); 779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(scratch, MemOperand(array, HeapObject::kMapOffset)); 780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prepare for conversion loop. 782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register src_elements = elements; 783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dst_elements = target_map; 784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dst_end = length; 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register heap_number_map = scratch; 786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(src_elements, src_elements, 787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag + 4)); 788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(dst_elements, array, Operand(FixedArray::kHeaderSize)); 789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(array, array, Operand(kHeapObjectTag)); 790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiScale(dst_end, dst_end, kPointerSizeLog2); 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(dst_end, dst_elements, dst_end); 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(heap_number_map, Heap::kHeapNumberMapRootIndex); 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Using offsetted addresses. 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // dst_elements: begin of destination FixedArray element fields, not tagged 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // src_elements: begin of source FixedDoubleArray element fields, not tagged, 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // points to the exponent 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // dst_end: end of destination FixedArray, not tagged 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // array: destination FixedArray 799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // heap_number_map: heap number map 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&entry); 801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Call into runtime if GC is required. 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&gc_required); 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MultiPop( 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value.bit() | key.bit() | receiver.bit() | target_map.bit() | ra.bit()); 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(fail); 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&loop); 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register upper_bits = key; 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(upper_bits, MemOperand(src_elements)); 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(src_elements, src_elements, kDoubleSize); 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // upper_bits: current element's upper 32 bit 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // src_elements: address of next element's upper 32 bit 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&convert_hole, eq, a1, Operand(kHoleNanUpper32)); 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Non-hole double, copy value into a heap number. 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register heap_number = receiver; 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = value; 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch3 = t2; 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AllocateHeapNumber(heap_number, scratch2, scratch3, heap_number_map, 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &gc_required); 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // heap_number: new heap number 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load mantissa of current element, src_elements 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // point to exponent of next element. 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lw(scratch2, MemOperand(heap_number, -12)); 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(scratch2, FieldMemOperand(heap_number, HeapNumber::kMantissaOffset)); 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sw(upper_bits, FieldMemOperand(heap_number, HeapNumber::kExponentOffset)); 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch2, dst_elements); 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(heap_number, MemOperand(dst_elements)); 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(dst_elements, dst_elements, kPointerSize); 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWrite(array, 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch2, 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch heap_number, 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasBeenSaved, 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&entry); 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Replace the-hole NaN with the-hole pointer. 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert_hole); 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch2, Heap::kTheHoleValueRootIndex); 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(scratch2, MemOperand(dst_elements)); 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(dst_elements, dst_elements, kPointerSize); 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&entry); 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&loop, lt, dst_elements, Operand(dst_end)); 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MultiPop(receiver.bit() | target_map.bit() | value.bit() | key.bit()); 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Replace receiver's backing store with newly created and filled FixedArray. 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(array, FieldMemOperand(receiver, JSObject::kElementsOffset)); 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::kElementsOffset, 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch array, 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasBeenSaved, 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(ra); 862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&only_change_map); 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Update receiver's map. 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sd(target_map, FieldMemOperand(receiver, HeapObject::kMapOffset)); 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteField(receiver, 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject::kMapOffset, 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target_map, 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kRAHasNotBeenSaved, 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs, 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_REMEMBERED_SET, 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OMIT_SMI_CHECK); 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid StringCharLoadGenerator::Generate(MacroAssembler* masm, 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register string, 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index, 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result, 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* call_runtime) { 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Fetch the instance type of the receiver into result register. 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(result, FieldMemOperand(string, HeapObject::kMapOffset)); 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lbu(result, FieldMemOperand(result, Map::kInstanceTypeOffset)); 885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We need special handling for indirect strings. 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label check_sequential; 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kIsIndirectStringMask)); 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&check_sequential, eq, at, Operand(zero_reg)); 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Dispatch on the indirect string shape: slice or cons. 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label cons_string; 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kSlicedNotConsMask)); 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&cons_string, eq, at, Operand(zero_reg)); 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle slices. 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label indirect_string_loaded; 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(result, FieldMemOperand(string, SlicedString::kOffsetOffset)); 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(string, FieldMemOperand(string, SlicedString::kParentOffset)); 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsra32(at, result, 0); 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(index, index, at); 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&indirect_string_loaded); 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle cons strings. 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check whether the right hand side is the empty string (i.e. if 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this is really a flat string in a cons string). If that is not 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the case we would rather go to the runtime system now to flatten 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the string. 909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&cons_string); 910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(result, FieldMemOperand(string, ConsString::kSecondOffset)); 911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(at, Heap::kempty_stringRootIndex); 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(call_runtime, ne, result, Operand(at)); 913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Get the first of the two strings and load its instance type. 914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(string, FieldMemOperand(string, ConsString::kFirstOffset)); 915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&indirect_string_loaded); 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(result, FieldMemOperand(string, HeapObject::kMapOffset)); 918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lbu(result, FieldMemOperand(result, Map::kInstanceTypeOffset)); 919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Distinguish sequential and external strings. Only these two string 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representations can reach here (slices and flat cons strings have been 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // reduced to the underlying sequential or external string). 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label external_string, check_encoding; 924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_sequential); 925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kSeqStringTag == 0); 926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kStringRepresentationMask)); 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&external_string, ne, at, Operand(zero_reg)); 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prepare sequential strings 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(SeqTwoByteString::kHeaderSize == SeqOneByteString::kHeaderSize); 931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(string, 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch string, 933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SeqTwoByteString::kHeaderSize - kHeapObjectTag); 934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&check_encoding); 935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle external strings. 937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&external_string); 938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code) { 939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Assert that we do not have a cons or slice (indirect strings) here. 940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Sequential strings have already been ruled out. 941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kIsIndirectStringMask)); 942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Assert(eq, kExternalStringExpectedButNotFound, 943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch at, Operand(zero_reg)); 944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Rule out short external strings. 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kShortExternalStringTag != 0); 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kShortExternalStringMask)); 948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(call_runtime, ne, at, Operand(zero_reg)); 949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ld(string, FieldMemOperand(string, ExternalString::kResourceDataOffset)); 950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label one_byte, done; 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_encoding); 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kTwoByteStringTag == 0); 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ And(at, result, Operand(kStringEncodingMask)); 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Branch(&one_byte, ne, at, Operand(zero_reg)); 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Two-byte string. 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsll(at, index, 1); 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(at, string, at); 959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lhu(result, MemOperand(at)); 960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&one_byte); 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // One_byte string. 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(at, string, index); 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lbu(result, MemOperand(at)); 965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic MemOperand ExpConstant(int index, Register base) { 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, index * kDoubleSize); 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid MathExpGenerator::EmitMathExp(MacroAssembler* masm, 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister input, 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister result, 977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister double_scratch1, 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister double_scratch2, 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1, 980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2, 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp3) { 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(result)); 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(double_scratch1)); 984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(double_scratch2)); 985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result.is(double_scratch1)); 986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result.is(double_scratch2)); 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!double_scratch1.is(double_scratch2)); 988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp1.is(temp2)); 989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp1.is(temp3)); 990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp2.is(temp3)); 991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ExternalReference::math_exp_constants(0).address() != NULL); 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!masm->serializer_enabled()); // External references not serializable. 993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label zero, infinity, done; 995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ li(temp3, Operand(ExternalReference::math_exp_constants(0))); 996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(double_scratch1, ExpConstant(0, temp3)); 998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ BranchF(&zero, NULL, ge, double_scratch1, input); 999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(double_scratch2, ExpConstant(1, temp3)); 1001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ BranchF(&infinity, NULL, ge, input, double_scratch2); 1002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(double_scratch1, ExpConstant(3, temp3)); 1004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(result, ExpConstant(4, temp3)); 1005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(double_scratch1, double_scratch1, input); 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add_d(double_scratch1, double_scratch1, result); 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ FmoveLow(temp2, double_scratch1); 1008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub_d(double_scratch1, double_scratch1, result); 1009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(result, ExpConstant(6, temp3)); 1010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(double_scratch2, ExpConstant(5, temp3)); 1011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(double_scratch1, double_scratch1, double_scratch2); 1012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub_d(double_scratch1, double_scratch1, input); 1013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub_d(result, result, double_scratch1); 1014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(double_scratch2, double_scratch1, double_scratch1); 1015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(result, result, double_scratch2); 1016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(double_scratch2, ExpConstant(7, temp3)); 1017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(result, result, double_scratch2); 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub_d(result, result, double_scratch1); 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mov 1 in double_scratch2 as math_exp_constants_array[8] == 1. 1020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(*reinterpret_cast<double*> 1021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (ExternalReference::math_exp_constants(8).address()) == 1); 1022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(double_scratch2, 1); 1023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add_d(result, result, double_scratch2); 1024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsrl(temp1, temp2, 11); 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Ext(temp2, temp2, 0, 11); 1026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(temp1, temp1, Operand(0x3ff)); 1027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Must not call ExpConstant() after overwriting temp3! 1029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ li(temp3, Operand(ExternalReference::math_exp_log_table())); 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsll(at, temp2, 3); 1031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Daddu(temp3, temp3, Operand(at)); 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwu(temp2, MemOperand(temp3, 0)); 1033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ lwu(temp3, MemOperand(temp3, kIntSize)); 1034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The first word is loaded is the lower number register. 1035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (temp2.code() < temp3.code()) { 1036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsll(at, temp1, 20); 1037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Or(temp1, temp3, at); 1038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(double_scratch1, temp2, temp1); 1039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ dsll(at, temp1, 20); 1041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Or(temp1, temp2, at); 1042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(double_scratch1, temp3, temp1); 1043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul_d(result, result, double_scratch1); 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ BranchShort(&done); 1046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&zero); 1048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result, kDoubleRegZero); 1049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ BranchShort(&done); 1050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&infinity); 1052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldc1(result, ExpConstant(2, temp3)); 1053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifdef DEBUG 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// nop(CODE_AGE_MARKER_NOP) 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic const uint32_t kCodeAgePatchFirstInstruction = 0x00010180; 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochCodeAgingHelper::CodeAgingHelper() { 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(young_sequence_.length() == kNoCodeAgeSequenceLength); 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since patcher is a large object, allocate it dynamically when needed, 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to avoid overloading the stack in stress conditions. 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // DONT_FLUSH is used because the CodeAgingHelper is initialized early in 1068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the process, before MIPS simulator ICache is setup. 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmartPointer<CodePatcher> patcher( 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new CodePatcher(young_sequence_.start(), 1071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch young_sequence_.length() / Assembler::kInstrSize, 1072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodePatcher::DONT_FLUSH)); 1073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PredictableCodeSizeScope scope(patcher->masm(), young_sequence_.length()); 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher->masm()->Push(ra, fp, cp, a1); 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); 1076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); 1077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher->masm()->nop(Assembler::CODE_AGE_SEQUENCE_NOP); 1078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher->masm()->Daddu( 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 1080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifdef DEBUG 1084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool CodeAgingHelper::IsOld(byte* candidate) const { 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Memory::uint32_at(candidate) == kCodeAgePatchFirstInstruction; 1086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 1088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Code::IsYoungSequence(Isolate* isolate, byte* sequence) { 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool result = isolate->code_aging_helper()->IsYoung(sequence); 1092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(result || isolate->code_aging_helper()->IsOld(sequence)); 1093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Code::GetCodeAgeAndParity(Isolate* isolate, byte* sequence, Age* age, 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkingParity* parity) { 1099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsYoungSequence(isolate, sequence)) { 1100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *age = kNoAgeCodeAge; 1101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *parity = NO_MARKING_PARITY; 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address target_address = Assembler::target_address_at( 1104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sequence + Assembler::kInstrSize); 1105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* stub = GetCodeFromTargetAddress(target_address); 1106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetCodeAgeAndParity(stub, age, parity); 1107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Code::PatchPlatformCodeAge(Isolate* isolate, 1112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* sequence, 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::Age age, 1114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkingParity parity) { 1115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t young_length = isolate->code_aging_helper()->young_sequence_length(); 1116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (age == kNoAgeCodeAge) { 1117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->code_aging_helper()->CopyYoungSequenceTo(sequence); 1118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatures::FlushICache(sequence, young_length); 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* stub = GetCodeAgeStub(isolate, age, parity); 1121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodePatcher patcher(sequence, young_length / Assembler::kInstrSize); 1122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mark this code sequence for FindPlatformCodeAgeSequence(). 1123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->nop(Assembler::CODE_AGE_MARKER_NOP); 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load the stub address to t9 and call it, 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // GetCodeAgeAndParity() extracts the stub address from this instruction. 1126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->li( 1127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch t9, 1128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(reinterpret_cast<uint64_t>(stub->instruction_start())), 1129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ADDRESS_LOAD); 1130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->nop(); // Prevent jalr to jal optimization. 1131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->jalr(t9, a0); 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->nop(); // Branch delay slot nop. 1133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch patcher.masm()->nop(); // Pad the empty space. 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef __ 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} } // namespace v8::internal 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif // V8_TARGET_ARCH_MIPS64 1143