13ef787dbeca8a5fb1086949cda830dccee07bfbdBen 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#include "src/base/bits.h" 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/double.h" 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/factory.h" 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/hydrogen-infer-representation.h" 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/property-details-inl.h" 12b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 13b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#if V8_TARGET_ARCH_IA32 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ia32/lithium-ia32.h" // NOLINT 15b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_X64 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/x64/lithium-x64.h" // NOLINT 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_ARM64 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm64/lithium-arm64.h" // NOLINT 19b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_ARM 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm/lithium-arm.h" // NOLINT 2144f0eee88ff00398ff7f715fab053374d808c90dSteve Block#elif V8_TARGET_ARCH_MIPS 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/mips/lithium-mips.h" // NOLINT 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_MIPS64 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/mips64/lithium-mips64.h" // NOLINT 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_X87 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/x87/lithium-x87.h" // NOLINT 27b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#else 28b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#error Unsupported target architecture. 29b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 30b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/base/safe_math.h" 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 33b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 34b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#define DEFINE_COMPILE(type) \ 37b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ 38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return builder->Do##type(this); \ 39b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 40b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochHYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) 41b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef DEFINE_COMPILE 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochIsolate* HValue::isolate() const { 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->isolate(); 473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 50257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::AssumeRepresentation(Representation r) { 51257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (CheckFlag(kFlexibleRepresentation)) { 52257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ChangeRepresentation(r); 53257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The representation of the value is dictated by type feedback and 54257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // will not be changed later. 55257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ClearFlag(kFlexibleRepresentation); 56257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 57b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 58b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 59b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 60b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::InferRepresentation(HInferRepresentationPhase* h_infer) { 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 62b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUses() { 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return Representation::None(); 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Array of use counts for each representation. 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int use_count[Representation::kNumRepresentations] = { 0 }; 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = use->observed_input_representation(it.index()); 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone()) continue; 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use_count[rep.kind()] += 1; 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsPhi()) HPhi::cast(this)->AddIndirectUsesTo(&use_count[0]); 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int tagged_count = use_count[Representation::kTagged]; 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int double_count = use_count[Representation::kDouble]; 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int int32_count = use_count[Representation::kInteger32]; 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int smi_count = use_count[Representation::kSmi]; 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (tagged_count > 0) return Representation::Tagged(); 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (double_count > 0) return Representation::Double(); 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (int32_count > 0) return Representation::Integer32(); 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (smi_count > 0) return Representation::Smi(); 100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::UpdateRepresentation(Representation new_rep, 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer, 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* reason) { 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_rep.is_more_general_than(r)) { 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCannotBeTagged) && new_rep.IsTagged()) return; 111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Changing #%d %s representation %s -> %s based on %s\n", 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), r.Mnemonic(), new_rep.Mnemonic(), reason); 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(new_rep); 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDependantsToWorklist(h_infer); 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::AddDependantsToWorklist(HInferRepresentationPhase* h_infer) { 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(it.value()); 124b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(OperandAt(i)); 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t ConvertAndSetOverflow(Representation r, 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t result, 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > Smi::kMaxValue) { 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMaxValue; 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < Smi::kMinValue) { 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMinValue; 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > kMaxInt) { 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMaxInt; 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < kMinInt) { 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMinInt; 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 152b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 153b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return static_cast<int32_t>(result); 154b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 155b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 156b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AddWithoutOverflow(Representation r, 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 161b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) + static_cast<int64_t>(b); 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 163b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 164b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 165b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t SubWithoutOverflow(Representation r, 167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) - static_cast<int64_t>(b); 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 172b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 173b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 174b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t MulWithoutOverflow(const Representation& r, 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 179b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) * static_cast<int64_t>(b); 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 181b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 182b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochint32_t Range::Mask() const { 185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ == upper_) return lower_; 186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ >= 0) { 187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t res = 1; 188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (res < upper_) { 189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch res = (res << 1) | 1; 190b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 192b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 193b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return 0xffffffff; 194b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 195b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 196b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 197b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::AddConstant(int32_t value) { 198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (value == 0) return; 199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; // Overflow is ignored here. 200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = Representation::Integer32(); 201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, value, &may_overflow); 202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, value, &may_overflow); 2033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 208b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 209e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Intersect(Range* other) { 210e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Min(upper_, other->upper_); 211e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Max(lower_, other->lower_); 212e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() && other->CanBeMinusZero(); 213e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 214e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 215e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 216e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 217e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Union(Range* other) { 218e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Max(upper_, other->upper_); 219e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Min(lower_, other->lower_); 220e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() || other->CanBeMinusZero(); 221e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 222e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 223e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 224e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMax(Range* other) { 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Max(upper_, other->upper_); 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Max(lower_, other->lower_); 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMin(Range* other) { 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Min(upper_, other->upper_); 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Min(lower_, other->lower_); 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 239e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Sar(int32_t value) { 240e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 241e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ >> bits; 242e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ >> bits; 243e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 244e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 245e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 246e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 247e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Shl(int32_t value) { 248e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 249e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_lower = lower_; 250e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_upper = upper_; 251e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ << bits; 252e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ << bits; 253e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (old_lower != lower_ >> bits || old_upper != upper_ >> bits) { 254e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = kMaxInt; 255e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = kMinInt; 256e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 257e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 258e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 259e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 260e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::AddAndCheckOverflow(const Representation& r, Range* other) { 262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, other->lower(), &may_overflow); 264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, other->upper(), &may_overflow); 265b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch KeepOrder(); 2663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 269b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::SubAndCheckOverflow(const Representation& r, Range* other) { 274b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = SubWithoutOverflow(r, lower_, other->upper(), &may_overflow); 276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = SubWithoutOverflow(r, upper_, other->lower(), &may_overflow); 277b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch KeepOrder(); 2783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 279b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 281b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 282b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 283b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::KeepOrder() { 286b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ > upper_) { 287b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t tmp = lower_; 288b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = upper_; 289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = tmp; 290b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 291b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 292b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 293b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 295b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::Verify() const { 296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(lower_ <= upper_); 297b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 299b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 300b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::MulAndCheckOverflow(const Representation& r, Range* other) { 302b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v1 = MulWithoutOverflow(r, lower_, other->lower(), &may_overflow); 304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v2 = MulWithoutOverflow(r, lower_, other->upper(), &may_overflow); 305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v3 = MulWithoutOverflow(r, upper_, other->lower(), &may_overflow); 306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v4 = MulWithoutOverflow(r, upper_, other->upper(), &may_overflow); 307b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = Min(Min(v1, v2), Min(v3, v4)); 308b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = Max(Max(v1, v2), Max(v3, v4)); 3093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 310b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 312b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 313b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 314b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 315b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 316257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochbool HValue::IsDefinedAfter(HBasicBlock* other) const { 317257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return block()->block_id() > other->block_id(); 318257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 319257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 320257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3213ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHUseListNode* HUseListNode::tail() { 3223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Skip and remove dead items in the use list. 3233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (tail_ != NULL && tail_->value()->CheckFlag(HValue::kIsDead)) { 3243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch tail_ = tail_->tail_; 3253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return tail_; 3273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f) const { 3313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 3333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!it.value()->CheckFlag(f)) return false; 3343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return true; 3363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f, HValue** value) const { 340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) { 343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *value = it.value(); 344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasAtLeastOneUseWithFlagAndNoneWithout(Flag f) const { 352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool return_value = false; 353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) return false; 356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_value = true; 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return return_value; 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 362257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseIterator::HUseIterator(HUseListNode* head) : next_(head) { 363257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Advance(); 364257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 365257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 366257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 367257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HUseIterator::Advance() { 368257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current_ = next_; 369257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current_ != NULL) { 370257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch next_ = current_->tail(); 371257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value_ = current_->value(); 372257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch index_ = current_->index(); 373b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 374b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 375b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 376b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 377257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochint HValue::UseCount() const { 378257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int count = 0; 379257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) ++count; 380257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return count; 381b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 382b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 384257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseListNode* HValue::RemoveUse(HValue* value, int index) { 385257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* previous = NULL; 386257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* current = use_list_; 387257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (current != NULL) { 388257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current->value() == value && current->index() == index) { 389257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (previous == NULL) { 390257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = current->tail(); 391257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 392257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous->set_tail(current->tail()); 393257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 394257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch break; 395b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 396257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 397257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous = current; 398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = current->tail(); 399b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 400257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 401257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#ifdef DEBUG 402257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Do not reuse use list nodes in debug mode, zap them. 403257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current != NULL) { 404257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* temp = 405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(block()->zone()) 406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUseListNode(current->value(), current->index(), NULL); 407257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current->Zap(); 408257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = temp; 409257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 410257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#endif 411257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return current; 412b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 413b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 414b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 415e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HValue::Equals(HValue* other) { 416b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (other->opcode() != opcode()) return false; 417b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->representation().Equals(representation())) return false; 418b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->type_.Equals(type_)) return false; 4191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (other->flags() != flags()) return false; 420b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandCount() != other->OperandCount()) return false; 421b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandAt(i)->id() != other->OperandAt(i)->id()) return false; 423b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 424b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = DataEquals(other); 425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result || Hashcode() == other->Hashcode()); 426b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 427b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 428b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 429b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 430e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochintptr_t HValue::Hashcode() { 431b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch intptr_t result = opcode(); 432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 433b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < count; ++i) { 434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result = result * 19 + OperandAt(i)->id() + (result >> 7); 435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 438b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 439b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 440257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochconst char* HValue::Mnemonic() const { 441257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (opcode()) { 442257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#define MAKE_CASE(type) case k##type: return #type; 443257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE) 444257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef MAKE_CASE 445257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case kPhi: return "Phi"; 446257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: return ""; 447257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 448257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 449257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 450257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CanReplaceWithDummyUses() { 452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FLAG_unreachable_code_elimination && 453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(block()->IsReachable() || 454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsBlockEntry() || 455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsControlInstruction() || 456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsArgumentsObject() || 457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsCapturedObject() || 458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSimulate() || 459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsEnterInlined() || 460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsLeaveInlined()); 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::IsInteger32Constant() { 465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsConstant() && HConstant::cast(this)->HasInteger32Value(); 466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t HValue::GetInteger32Constant() { 470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::cast(this)->Integer32Value(); 471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::EqualsInteger32Constant(int32_t value) { 475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsInteger32Constant() && GetInteger32Constant() == value; 476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 479b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::SetOperandAt(int index, HValue* value) { 480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RegisterUse(index, value); 481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InternalSetOperandAt(index, value); 482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 483b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 484b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 485257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::DeleteAndReplaceWith(HValue* other) { 486257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We replace all uses first, so Delete can assert that there are none. 487257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (other != NULL) ReplaceAllUsesWith(other); 4883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Kill(); 489257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DeleteFromGraph(); 490b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 491b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 492b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 493257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::ReplaceAllUsesWith(HValue* other) { 494257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (use_list_ != NULL) { 495257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* list_node = use_list_; 496257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = list_node->value(); 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->block()->IsStartBlock()); 498257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value->InternalSetOperandAt(list_node->index(), other); 499257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = list_node->tail(); 500257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch list_node->set_tail(other->use_list_); 501257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch other->use_list_ = list_node; 502b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 503b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 504b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 505b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::Kill() { 5073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Instead of going through the entire use list of each operand, we only 5083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // check the first item in each use list and rely on the tail() method to 5093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // skip dead items, removing them lazily next time we traverse the list. 5103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetFlag(kIsDead); 511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 5123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HValue* operand = OperandAt(i); 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand == NULL) continue; 5143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HUseListNode* first = operand->use_list_; 515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (first != NULL && first->value()->CheckFlag(kIsDead)) { 5163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch operand->use_list_ = first->tail(); 5173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 518b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 519b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 522257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::SetBlock(HBasicBlock* block) { 523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block_ == NULL || block == NULL); 524257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch block_ = block; 525257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (id_ == kNoNumber && block != NULL) { 526257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch id_ = block->graph()->GetNextValueID(this); 527b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 528b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 529b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 530b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const HValue& v) { return v.PrintTo(os); } 532b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 533b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const TypeOf& t) { 535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (t.value->representation().IsTagged() && 536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !t.value->type().Equals(HType::Tagged())) 537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << " type:" << t.value->type(); 539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 540b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 541b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const ChangesOf& c) { 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVNFlagSet changes_flags = c.value->ChangesFlags(); 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.IsEmpty()) return os; 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " changes["; 546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags == c.value->AllSideEffectsFlagSet()) { 547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "*"; 548257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 549257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool add_comma = false; 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define PRINT_DO(Type) \ 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.Contains(k##Type)) { \ 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (add_comma) os << ","; \ 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add_comma = true; \ 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << #Type; \ 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_TRACKED_FLAG_LIST(PRINT_DO); 557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_UNTRACKED_FLAG_LIST(PRINT_DO); 558257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef PRINT_DO 559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "]"; 561b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasMonomorphicJSObjectType() { 565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !GetMonomorphicJSObjectMap().is_null(); 566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 568b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 569b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HValue::UpdateInferredType() { 570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HType type = CalculateInferredType(); 571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = (!type.Equals(type_)); 572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch type_ = type; 573b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 575b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 576b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RegisterUse(int index, HValue* new_value) { 578b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* old_value = OperandAt(index); 579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (old_value == new_value) return; 580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* removed = NULL; 582257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (old_value != NULL) { 583257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed = old_value->RemoveUse(this, index); 584257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 585257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 586b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (new_value != NULL) { 587257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (removed == NULL) { 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_value->use_list_ = new(new_value->block()->zone()) HUseListNode( 589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, index, new_value->use_list_); 590257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 591257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed->set_tail(new_value->use_list_); 592257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch new_value->use_list_ = removed; 593257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 596b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 597b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::AddNewRange(Range* r, Zone* zone) { 5993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) ComputeInitialRange(zone); 6003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) range_ = new(zone) Range(); 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 602b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch r->StackUpon(range_); 603b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = r; 604b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 605b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 606b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 607b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RemoveLastAddedRange() { 608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(range_->next() != NULL); 610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = range_->next(); 611b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 612b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 613b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::ComputeInitialRange(Zone* zone) { 615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!HasRange()); 6163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch range_ = InferRange(zone); 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const HSourcePosition& p) { 622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (p.IsUnknown()) { 623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "<?>"; 624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (FLAG_hydrogen_track_positions) { 625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "<" << p.inlining_id() << ":" << p.position() << ">"; 626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "<0:" << p.raw() << ">"; 628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 631b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HInstruction::PrintTo(OStream& os) const { // NOLINT 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Mnemonic() << " "; 634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintDataTo(os) << ChangesOf(this) << TypeOf(this); 635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kHasNoObservableSideEffects)) os << " [noOSE]"; 636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kIsDead)) os << " [dead]"; 637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 638257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HInstruction::PrintDataTo(OStream& os) const { // NOLINT 642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << " "; 644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)); 645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 647b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 648b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 649b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 650b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::Unlink() { 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); // Must never move control instructions. 653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsBlockEntry()); // Doesn't make sense to delete these. 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(previous_ != NULL); 655e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch previous_->next_ = next_; 656e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (next_ == NULL) { 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block()->last() == this); 658e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch block()->set_last(previous_); 659e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 660e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch next_->previous_ = previous_; 661e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 662b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch clear_block(); 663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 665b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 666b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertBefore(HInstruction* next) { 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->IsBlockEntry()); 669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); 670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->block()->IsStartBlock()); 671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->previous_ != NULL); 672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* prev = next->previous(); 673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch prev->next_ = this; 674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next->previous_ = this; 675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 676b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = prev; 677b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(next->block()); 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && next->has_position()) { 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(next->position()); 680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertAfter(HInstruction* previous) { 685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!previous->IsControlInstruction()); 687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction() || previous->next_ == NULL); 688b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* block = previous->block(); 689b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Never insert anything except constants into the start block after finishing 690b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // it. 691b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block->IsStartBlock() && block->IsFinished() && !IsConstant()) { 692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block->end()->SecondSuccessor() == NULL); 693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InsertAfter(block->end()->FirstSuccessor()->first()); 694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 695b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 696b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // If we're inserting after an instruction with side-effects that is 698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // followed by a simulate instruction, we need to insert after the 699b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // simulate instruction instead. 700b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* next = previous->next_; 7013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (previous->HasObservableSideEffects() && next != NULL) { 702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->IsSimulate()); 703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous = next; 704b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next = previous->next_; 705b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 706b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 707b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = previous; 708b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(block); 710b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous->next_ = this; 711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (next != NULL) next->previous_ = this; 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block->last() == previous) { 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block->set_last(this); 714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && previous->has_position()) { 716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(previous->position()); 717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::Dominates(HInstruction* other) { 722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block() != other->block()) { 723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->Dominates(other->block()); 724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Both instructions are in the same basic block. This instruction 726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // should precede the other one in order to dominate it. 727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HInstruction* instr = next(); instr != NULL; instr = instr->next()) { 728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr == other) { 729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 733b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 734b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 735b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 736b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 7371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HInstruction::Verify() { 738b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that input operands are defined before use. 739b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* cur_block = block(); 740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 741b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* other_operand = OperandAt(i); 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (other_operand == NULL) continue; 743b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* other_block = other_operand->block(); 744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur_block == other_block) { 745b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other_operand->IsPhi()) { 7463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HInstruction* cur = this->previous(); 747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (cur != NULL) { 748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur == other_operand) break; 7493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch cur = cur->previous(); 750b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 751b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Must reach other operand in the same block! 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(cur == other_operand); 753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 755257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the following assert fires, you may have forgotten an 756257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // AddInstruction. 757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(other_block->Dominates(cur_block)); 758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that instructions that may have side-effects are followed 762b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // by a simulate instruction. 7633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasObservableSideEffects() && !IsOsrEntry()) { 764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next()->IsSimulate()); 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 7661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 7671e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Verify that instructions that can be eliminated by GVN have overridden 7681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // HValue::DataEquals. The default implementation is UNREACHABLE. We 7691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // don't actually care whether DataEquals returns true or false here. 7701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (CheckFlag(kUseGVN)) DataEquals(this); 771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify that all uses are in the graph. 773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator use = uses(); !use.Done(); use.Advance()) { 774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use.value()->IsInstruction()) { 775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HInstruction::cast(use.value())->IsLinked()); 776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 778b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::CanDeoptimize() { 783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(titzer): make this a virtual method? 784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (opcode()) { 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAbnormalExit: 786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAccessArgumentsAt: 787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAllocate: 788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsElements: 789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsLength: 790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsObject: 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBlockEntry: 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBoundsCheckBaseIndexInformation: 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallFunction: 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallNew: 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallNewArray: 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallStub: 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallWithDescriptor: 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCapturedObject: 799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClassOfTestAndBranch: 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareGeneric: 801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareHoleAndBranch: 802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareMap: 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareMinusZeroAndBranch: 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareNumericAndBranch: 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareObjectEqAndBranch: 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstant: 807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstructDouble: 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kContext: 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDebugBreak: 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeclareGlobals: 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDoubleBits: 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDummyUse: 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnterInlined: 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnvironmentMarker: 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForceRepresentation: 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGetCachedArrayIndex: 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGoto: 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasCachedArrayIndexAndBranch: 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasInstanceTypeAndBranch: 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInnerAllocatedObject: 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInstanceOf: 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInstanceOfKnownGlobal: 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsConstructCallAndBranch: 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsObjectAndBranch: 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsSmiAndBranch: 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsStringAndBranch: 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsUndetectableAndBranch: 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLeaveInlined: 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFieldByIndex: 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadGlobalGeneric: 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedField: 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedGeneric: 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadRoot: 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMapEnumLength: 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathMinMax: 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kParameter: 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPhi: 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPushArguments: 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kRegExpLiteral: 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kReturn: 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringGetChar: 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreCodeEntry: 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreFrameContext: 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyed: 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedField: 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedGeneric: 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharCodeAt: 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharFromCode: 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTailCallThroughMegamorphicCache: 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kThisFunction: 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeofIsAndBranch: 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnknownOSRValue: 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUseConst: 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAdd: 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAllocateBlockContext: 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kApplyArguments: 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBitwise: 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBoundsCheck: 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBranch: 862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallJSFunction: 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallRuntime: 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kChange: 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckHeapObject: 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckInstanceType: 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMapValue: 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMaps: 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckSmi: 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckValue: 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClampToUint8: 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDateField: 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeoptimize: 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDiv: 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInCacheArray: 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInPrepareMap: 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kFunctionLiteral: 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInvokeFunction: 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadContextSlot: 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFunctionPrototype: 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadGlobalCell: 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyed: 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyedGeneric: 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathFloorOfDiv: 885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMod: 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMul: 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kOsrEntry: 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPower: 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kRor: 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSar: 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringSetChar: 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShl: 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShr: 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSimulate: 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStackCheck: 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreContextSlot: 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreGlobalCell: 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyedGeneric: 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringAdd: 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCompareAndBranch: 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSub: 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kToFastProperties: 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTransitionElementsKind: 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTrapAllocationMemento: 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeof: 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnaryMathOperation: 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kWrapReceiver: 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const NameOf& v) { 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << v.value->representation().Mnemonic() << v.value->id(); 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HDummyUse::PrintDataTo(OStream& os) const { // NOLINT 920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HEnvironmentMarker::PrintDataTo(OStream& os) const { // NOLINT 925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << (kind() == BIND ? "bind" : "lookup") << " var[" << index() 926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HUnaryCall::PrintDataTo(OStream& os) const { // NOLINT 931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " #" << argument_count(); 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCallJSFunction::PrintDataTo(OStream& os) const { // NOLINT 936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(function()) << " #" << argument_count(); 9371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 9381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 9391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHCallJSFunction* HCallJSFunction::New( 941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, 942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context, 943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* function, 944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int argument_count, 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool pass_argument_count) { 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool has_stack_check = false; 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (function->IsConstant()) { 948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* fun_const = HConstant::cast(function); 949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSFunction> jsfun = 950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSFunction>::cast(fun_const->handle(zone->isolate())); 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stack_check = !jsfun.is_null() && 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (jsfun->code()->kind() == Code::FUNCTION || 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch jsfun->code()->kind() == Code::OPTIMIZED_FUNCTION); 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HCallJSFunction( 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch function, argument_count, pass_argument_count, 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stack_check); 9591e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 9601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 9611e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBinaryCall::PrintDataTo(OStream& os) const { // NOLINT 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(first()) << " " << NameOf(second()) << " #" 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << argument_count(); 96569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 96669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 96769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBoundsCheck::ApplyIndexChange() { 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip_check()) return; 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DecompositionResult decomposition; 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool index_is_decomposable = index()->TryDecompose(&decomposition); 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index_is_decomposable) { 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(decomposition.base() == base()); 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (decomposition.offset() == offset() && 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.scale() == scale()) return; 9771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplaceAllUsesWith(index()); 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* current_index = decomposition.base(); 984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int actual_offset = decomposition.offset() + offset(); 985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int actual_scale = decomposition.scale() + scale(); 986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->graph()->zone(); 988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context = block()->graph()->GetInvalidContext(); 989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (actual_offset != 0) { 990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* add_offset = HConstant::New(zone, context, actual_offset); 991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add_offset->InsertBefore(this); 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* add = HAdd::New(zone, context, 993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_index, add_offset); 994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add->InsertBefore(this); 995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add->AssumeRepresentation(index()->representation()); 996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add->ClearFlag(kCanOverflow); 997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_index = add; 998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (actual_scale != 0) { 1001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* sar_scale = HConstant::New(zone, context, actual_scale); 1002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sar_scale->InsertBefore(this); 1003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* sar = HSar::New(zone, context, 1004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_index, sar_scale); 1005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sar->InsertBefore(this); 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sar->AssumeRepresentation(index()->representation()); 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_index = sar; 1008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(0, current_index); 1011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_ = NULL; 1013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset_ = 0; 1014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scale_ = 0; 1015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBoundsCheck::PrintDataTo(OStream& os) const { // NOLINT 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()) << " " << NameOf(length()); 1020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != NULL && (offset() != 0 || scale() != 0)) { 1021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " base: (("; 1022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != index()) { 1023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()); 1024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "index"; 1026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " + " << offset() << ") >> " << scale() << ")"; 1028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip_check()) os << " [DISABLED]"; 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBoundsCheck::InferRepresentation(HInferRepresentationPhase* h_infer) { 1035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 1036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_index = index()->ActualValue(); 1037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_length = length()->ActualValue(); 1038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation index_rep = actual_index->representation(); 1039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation length_rep = actual_length->representation(); 1040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index_rep.IsTagged() && actual_index->type().IsSmi()) { 1041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_rep = Representation::Smi(); 1042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_rep.IsTagged() && actual_length->type().IsSmi()) { 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_rep = Representation::Smi(); 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = index_rep.generalize(length_rep); 1047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.is_more_general_than(Representation::Integer32())) { 1048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 1049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(r, h_infer, "boundscheck"); 1051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HBoundsCheck::InferRange(Zone* zone) { 1055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && length()->HasRange()) { 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = length()->range()->upper() - (allow_equality() ? 0 : 1); 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = 0; 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(lower, upper); 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index()->HasRange()) { 1062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->Intersect(index()->range()); 1063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp result to Smi::kMaxValue. 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBoundsCheckBaseIndexInformation::PrintDataTo( 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OStream& os) const { // NOLINT 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(svenpanne) This 2nd base_index() looks wrong... 1076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "base: " << NameOf(base_index()) 1077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ", check: " << NameOf(base_index()); 1078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCallWithDescriptor::PrintDataTo(OStream& os) const { // NOLINT 1082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); i++) { 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)) << " "; 1084b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "#" << argument_count(); 1086b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1087b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1088b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCallNewArray::PrintDataTo(OStream& os) const { // NOLINT 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << ElementsKindToString(elements_kind()) << " "; 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryCall::PrintDataTo(os); 1092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCallRuntime::PrintDataTo(OStream& os) const { // NOLINT 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << name()->ToCString().get() << " "; 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (save_doubles() == kSaveFPRegs) os << "[save doubles] "; 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "#" << argument_count(); 1099b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1101b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HClassOfTestAndBranch::PrintDataTo(OStream& os) const { // NOLINT 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "class_of_test(" << NameOf(value()) << ", \"" 1104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << class_name()->ToCString().get() << "\")"; 1105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HWrapReceiver::PrintDataTo(OStream& os) const { // NOLINT 1109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(receiver()) << " " << NameOf(function()); 1110b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1111b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1112b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HAccessArgumentsAt::PrintDataTo(OStream& os) const { // NOLINT 1114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(arguments()) << "[" << NameOf(index()) << "], length " 1115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(length()); 1116b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1117b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1118b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HAllocateBlockContext::PrintDataTo(OStream& os) const { // NOLINT 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(context()) << " " << NameOf(function()); 1121b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1122b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1123b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HControlInstruction::PrintDataTo(OStream& os) const { // NOLINT 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " goto ("; 11263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool first_block = true; 11273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (HSuccessorIterator it(this); !it.Done(); it.Advance()) { 1128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!first_block) os << ", "; 1129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << *it.Current(); 11303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch first_block = false; 11311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 1133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HUnaryControlInstruction::PrintDataTo(OStream& os) const { // NOLINT 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HReturn::PrintDataTo(OStream& os) const { // NOLINT 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " (pop " << NameOf(parameter_count()) 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << " values)"; 1145b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1146b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1147b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBranch::observed_input_representation(int index) { 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const ToBooleanStub::Types tagged_types( 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToBooleanStub::NULL_TYPE | 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToBooleanStub::SPEC_OBJECT | 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToBooleanStub::STRING | 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToBooleanStub::SYMBOL); 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected_input_types_.ContainsAnyOf(tagged_types)) { 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected_input_types_.Contains(ToBooleanStub::UNDEFINED)) { 1158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected_input_types_.Contains(ToBooleanStub::HEAP_NUMBER)) { 1159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected_input_types_.Contains(ToBooleanStub::HEAP_NUMBER)) { 1164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected_input_types_.Contains(ToBooleanStub::SMI)) { 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Smi(); 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 1170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1171b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1172b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBranch::KnownSuccessorBlock(HBasicBlock** block) { 1174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = this->value(); 1175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->EmitAtUses()) { 1176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(value->IsConstant()); 1177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->representation().IsDouble()); 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value)->BooleanValue() 1179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() 1180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : SecondSuccessor(); 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 11853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 11863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 11873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBranch::PrintDataTo(OStream& os) const { // NOLINT 1189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryControlInstruction::PrintDataTo(os) << " " 1190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << expected_input_types(); 11913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 11923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 11933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCompareMap::PrintDataTo(OStream& os) const { // NOLINT 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " (" << *map().handle() << ")"; 1196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HControlInstruction::PrintDataTo(os); 1197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() == 0) { 1198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [true]"; 1199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (known_successor_index() == 1) { 1200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [false]"; 1201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochconst char* HUnaryMathOperation::OpName() const { 1207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op()) { 1208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 1209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "floor"; 1210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 1211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "fround"; 1212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 1213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "round"; 1214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 1215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "abs"; 1216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "log"; 1218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "exp"; 1220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 1221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "sqrt"; 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "pow-half"; 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "clz32"; 1226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 1228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 1229b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1231b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1232b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HUnaryMathOperation::InferRange(Zone* zone) { 1234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathClz32) return new(zone) Range(0, 32); 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && value()->HasRange()) { 1237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathAbs) { 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = value()->range()->upper(); 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = value()->range()->lower(); 1240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool spans_zero = value()->range()->CanBeZero(); 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Math.abs(kMinInt) overflows its representation, on which the 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction deopts. Hence clamp it to kMaxInt. 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_upper = upper == kMinInt ? kMaxInt : abs(upper); 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_lower = lower == kMinInt ? kMaxInt : abs(lower); 1245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) Range(spans_zero ? 0 : Min(abs_lower, abs_upper), 1247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Max(abs_lower, abs_upper)); 1248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp Math.abs(Smi::kMinValue) to 1249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi::kMaxValue. 1250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 1251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1255b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1256b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1257b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HUnaryMathOperation::PrintDataTo(OStream& os) const { // NOLINT 1259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << OpName() << " " << NameOf(value()); 1260b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HUnaryOperation::PrintDataTo(OStream& os) const { // NOLINT 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HHasInstanceTypeAndBranch::PrintDataTo(OStream& os) const { // NOLINT 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (from_) { 12713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case FIRST_JS_RECEIVER_TYPE: 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == LAST_TYPE) os << " spec_object"; 1273b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1274b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_REGEXP_TYPE: 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_REGEXP_TYPE) os << " reg_exp"; 1276b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1277b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_ARRAY_TYPE: 1278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_ARRAY_TYPE) os << " array"; 1279b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1280b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_FUNCTION_TYPE: 1281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_FUNCTION_TYPE) os << " function"; 1282b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1283b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HTypeofIsAndBranch::PrintDataTo(OStream& os) const { // NOLINT 1291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " == " << type_literal()->ToCString().get(); 1292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic String* TypeOfString(HConstant* constant, Isolate* isolate) { 1297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate->heap(); 1298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasNumberValue()) return heap->number_string(); 1299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->IsUndetectable()) return heap->undefined_string(); 1300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasStringValue()) return heap->string_string(); 1301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant->GetInstanceType()) { 1302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case ODDBALL_TYPE: { 1303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> unique = constant->GetUnique(); 1304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->true_value()) || 1305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch unique.IsKnownGlobal(heap->false_value())) { 1306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->boolean_string(); 1307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->null_value())) { 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(unique.IsKnownGlobal(heap->undefined_value())); 1312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->undefined_string(); 1313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SYMBOL_TYPE: 1315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->symbol_string(); 1316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case JS_FUNCTION_TYPE: 1317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case JS_FUNCTION_PROXY_TYPE: 1318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->function_string(); 1319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HTypeofIsAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value()); 1328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* type_string = TypeOfString(constant, isolate()); 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool same_type = type_literal_.IsKnownGlobal(type_string); 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = same_type ? FirstSuccessor() : SecondSuccessor(); 1331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (value()->representation().IsSpecialization()) { 1333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool number_type = 1334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type_literal_.IsKnownGlobal(isolate()->heap()->number_string()); 1335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = number_type ? FirstSuccessor() : SecondSuccessor(); 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1340b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1341b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1342b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCheckMapValue::PrintDataTo(OStream& os) const { // NOLINT 1344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << NameOf(map()); 13453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMapValue::Canonicalize() { 1349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map()->IsConstant()) { 1350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_map = HConstant::cast(map()); 1351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HCheckMaps::CreateAndInsertAfter( 1352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->zone(), value(), c_map->MapValue(), 1353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_map->HasStableMapValue(), this); 1354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HForInPrepareMap::PrintDataTo(OStream& os) const { // NOLINT 1360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()); 13613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HForInCacheArray::PrintDataTo(OStream& os) const { // NOLINT 1365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()) << " " << NameOf(map()) << "[" << idx_ 1366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 13673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadFieldByIndex::PrintDataTo(OStream& os) const { // NOLINT 1371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << " " << NameOf(index()); 13723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchLeftIsOnes(HValue* l, HValue* r, HValue** negated) { 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!l->EqualsInteger32Constant(~0)) return false; 1377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *negated = r; 1378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 13793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchNegationViaXor(HValue* instr, HValue** negated) { 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsBitwise()) return false; 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBitwise* b = HBitwise::cast(instr); 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (b->op() == Token::BIT_XOR) && 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (MatchLeftIsOnes(b->left(), b->right(), negated) || 1387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchLeftIsOnes(b->right(), b->left(), negated)); 13883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchDoubleNegation(HValue* instr, HValue** arg) { 1392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* negated; 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MatchNegationViaXor(instr, &negated) && 1394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchNegationViaXor(negated, arg); 13953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13983ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HBitwise::Canonicalize() { 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsSmiOrInteger32()) return this; 14003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If x is an int32, then x & -1 == x, x | 0 == x and x ^ 0 == x. 14013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t nop_constant = (op() == Token::BIT_AND) ? -1 : 0; 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(nop_constant) && 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !right()->CheckFlag(kUint32)) { 14043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return right(); 14053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right()->EqualsInteger32Constant(nop_constant) && 1407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->CheckFlag(kUint32)) { 14083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return left(); 14093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimize double negation, a common pattern used for ToInt32(x). 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* arg; 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MatchDoubleNegation(this, &arg) && !arg->CheckFlag(kUint32)) { 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg; 1414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RepresentationFromInputs() { 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::External(); 1423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RepresentationFromInputs(); 1425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RequiredInputRepresentation(int index) { 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index == 2) { 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Integer32(); 1433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RequiredInputRepresentation(index); 1436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsIdentityOperation(HValue* arg1, HValue* arg2, int32_t identity) { 1440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg1->representation().IsSpecialization() && 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch arg2->EqualsInteger32Constant(identity); 1442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 14453ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HAdd::Canonicalize() { 1446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adding 0 is an identity operation except in case of -0: -0 + 0 = +0 1447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0) && 1448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Left could be -0. 1449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return left(); 1450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 0) && 1452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Right could be -0. 1453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return right(); 1454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14593ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HSub::Canonicalize() { 1460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0)) return left(); 1461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMul::Canonicalize() { 1466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 1)) return right(); 1468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HMul::MulMinusOne() { 1473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(-1) || 1474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->EqualsInteger32Constant(-1)) { 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMod::Canonicalize() { 1483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HDiv::Canonicalize() { 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 14893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14933ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HChange::Canonicalize() { 14943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return (from().Equals(to())) ? value() : this; 14953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14983ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HWrapReceiver::Canonicalize() { 14993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasNoUses()) return NULL; 15003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (receiver()->type().IsJSObject()) { 15013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return receiver(); 15023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 15033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 15043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 15053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 15063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HTypeof::PrintDataTo(OStream& os) const { // NOLINT 1508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HForceRepresentation::New(Zone* zone, HValue* context, 1513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value, Representation representation) { 1514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value->IsConstant()) { 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c = HConstant::cast(value); 1516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c = c->CopyToRepresentation(representation, zone); 1517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c != NULL) return c; 1518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HForceRepresentation(value, representation); 1520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1522b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HForceRepresentation::PrintDataTo(OStream& os) const { // NOLINT 1524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << representation().Mnemonic() << " " << NameOf(value()); 1525589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 1526589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1527589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HChange::PrintDataTo(OStream& os) const { // NOLINT 1529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUnaryOperation::PrintDataTo(os); 1530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << from().Mnemonic() << " to " << to().Mnemonic(); 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToSmi()) os << " truncating-smi"; 1533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToInt32()) os << " truncating-int32"; 1534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 1535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kAllowUndefinedAsNaN)) os << " allow-undefined-as-nan"; 1536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HUnaryMathOperation::Canonicalize() { 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathRound || op() == kMathFloor) { 1542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* val = value(); 1543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->IsChange()) val = HChange::cast(val)->value(); 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().IsSmiOrInteger32()) { 1545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().Equals(representation())) return val; 1546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(new(block()->zone()) HChange( 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch val, representation(), false, false)); 1548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathFloor && value()->IsDiv() && value()->HasOneUse()) { 1551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = HDiv::cast(value()); 1552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left = hdiv->left(); 1554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left->representation().IsInteger32()) { 1555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (left->IsChange() && HChange::cast(left)->from().IsInteger32()) { 1557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = HChange::cast(left)->value(); 1559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(1).IsSmiOrInteger32()) { 1560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = Prepend(new(block()->zone()) HChange( 1561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left, Representation::Integer32(), false, false)); 1562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right = hdiv->right(); 1567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsInteger32Constant()) { 1568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(HConstant::cast(right)->CopyToRepresentation( 1569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), right->block()->zone())); 1570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (right->representation().IsInteger32()) { 1571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (right->IsChange() && 1573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HChange::cast(right)->from().IsInteger32()) { 1574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = HChange::cast(right)->value(); 1576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(2).IsSmiOrInteger32()) { 1577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(new(block()->zone()) HChange( 1578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right, Representation::Integer32(), false, false)); 1579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(HMathFloorOfDiv::New( 1584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->zone(), context(), left, right)); 1585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckInstanceType::Canonicalize() { 1591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((check_ == IS_SPEC_OBJECT && value()->type().IsJSObject()) || 1592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) || 1593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_STRING && value()->type().IsString())) { 1594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_ == IS_INTERNALIZED_STRING && value()->IsConstant()) { 1598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HConstant::cast(value())->HasInternalizedStringValue()) { 1599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 16033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 16043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 16053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1606257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckInterval(InstanceType* first, 1607257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType* last) { 1608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_interval_check()); 1609257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 16103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case IS_SPEC_OBJECT: 16113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch *first = FIRST_SPEC_OBJECT_TYPE; 16123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch *last = LAST_SPEC_OBJECT_TYPE; 1613257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1614257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_JS_ARRAY: 1615257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *first = *last = JS_ARRAY_TYPE; 1616257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1617257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1618257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1619257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1620257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 1621257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1622257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1623257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckMaskAndTag(uint8_t* mask, uint8_t* tag) { 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!is_interval_check()); 1625257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1626257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_STRING: 1627257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *mask = kIsNotStringMask; 1628257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *tag = kStringTag; 1629257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: 1631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *mask = kIsNotStringMask | kIsNotInternalizedMask; 1632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *tag = kInternalizedTag; 1633257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1634257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1635257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1636257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCheckMaps::PrintDataTo(OStream& os) const { // NOLINT 1641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " [" << *maps()->at(0).handle(); 1642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 1644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 1646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsStabilityCheck()) os << "(stability-check)"; 1647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMaps::Canonicalize() { 1652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsStabilityCheck() && maps_are_stable() && value()->IsConstant()) { 1653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_value = HConstant::cast(value()); 1654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->HasObjectMap()) { 1655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps()->size(); ++i) { 1656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->ObjectMap() == maps()->at(i)) { 1657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps()->size() > 1) { 1658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_maps(new(block()->graph()->zone()) UniqueSet<Map>( 1659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch maps()->at(i), block()->graph()->zone())); 1660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkAsStabilityCheck(); 1662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 16663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCheckValue::PrintDataTo(OStream& os) const { // NOLINT 1672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << Brief(*object().handle()); 1673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckValue::Canonicalize() { 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (value()->IsConstant() && 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(value())->EqualsUnique(object_)) ? NULL : this; 1679b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1680b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochconst char* HCheckInstanceType::GetCheckName() const { 16833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (check_) { 16843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_SPEC_OBJECT: return "object"; 16853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_JS_ARRAY: return "array"; 16863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_STRING: return "string"; 1687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: return "internalized_string"; 16883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 16893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 16903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ""; 16913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 16923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCheckInstanceType::PrintDataTo(OStream& os) const { // NOLINT 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << GetCheckName() << " "; 1696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryOperation::PrintDataTo(os); 1697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCallStub::PrintDataTo(OStream& os) const { // NOLINT 1701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << CodeStub::MajorName(major_key_, false) << " "; 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryCall::PrintDataTo(os); 1703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HTailCallThroughMegamorphicCache::PrintDataTo( 1707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OStream& os) const { // NOLINT 1708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); i++) { 1709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)) << " "; 1710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "flags: " << flags(); 17123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 17133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 17143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HUnknownOSRValue::PrintDataTo(OStream& os) const { // NOLINT 1716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* type = "expression"; 1717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_local_index(index_)) type = "local"; 1718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_special_index(index_)) type = "special"; 1719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_parameter_index(index_)) type = "parameter"; 1720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << type << " @ " << index_; 1721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1722b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HInstanceOf::PrintDataTo(OStream& os) const { // NOLINT 1725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(left()) << " " << NameOf(right()) << " " 1726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(context()); 1727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17303ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HValue::InferRange(Zone* zone) { 1731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result; 1732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() || type().IsSmi()) { 1733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(Smi::kMinValue, Smi::kMaxValue); 1734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 1735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(); 1737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32)); 1738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(jkummerow): The range cannot be minus zero when the upper type 1739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // bound is Integer32. 1740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 174169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 174269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 174369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 174469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 17453ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HChange::InferRange(Zone* zone) { 174669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* input_range = value()->range(); 1747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsInteger32() && !value()->CheckFlag(HInstruction::kUint32) && 1748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsSmi() || 1749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsTagged() && 1750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange()))) { 175269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch set_type(HType::Smi()); 1753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearChangesFlag(kNewSpacePromotion); 1754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmiOrTagged() && 1756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange() && 1758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!SmiValuesAre32Bits() || 1759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !value()->CheckFlag(HValue::kUint32) || 1760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->upper() != kMaxInt)) { 1761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The Range class can't express upper bounds in the (kMaxInt, kMaxUint32] 1762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // interval, so we treat kMaxInt as a sentinel for this entire interval. 1763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 176569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (input_range != NULL) 17663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? input_range->Copy(zone) 17673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : HValue::InferRange(zone); 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!to().IsSmiOrInteger32() || 1769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(CheckFlag(kAllUsesTruncatingToInt32) || 1770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckFlag(kAllUsesTruncatingToSmi))); 1771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmi()) result->ClampToSmi(); 177269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 1773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17763ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HConstant::InferRange(Zone* zone) { 1777b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (has_int32_value_) { 17783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(int32_value_, int32_value_); 1779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result->set_can_be_minus_zero(false); 1780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 17823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1783b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1784b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHSourcePosition HPhi::position() const { 1787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->first()->position(); 1788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17913ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HPhi::InferRange(Zone* zone) { 1792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1794b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block()->IsLoopHeader()) { 1795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* range = r.IsSmi() 1796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? new(zone) Range(Smi::kMinValue, Smi::kMaxValue) 1797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : new(zone) Range(kMinInt, kMaxInt); 1798b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* range = OperandAt(0)->range()->Copy(zone); 1801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 1; i < OperandCount(); ++i) { 1802b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range->Union(OperandAt(i)->range()); 1803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1808b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18123ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HAdd::InferRange(Zone* zone) { 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 18173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->AddAndCheckOverflow(r, b) || 1819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeMinusZero()); 1826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1829b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1830b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1831b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1832b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18333ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSub::InferRange(Zone* zone) { 1834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1836b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1837b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 18383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->SubAndCheckOverflow(r, b) || 1840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1842b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeZero()); 1847b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1848b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1850b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1851b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1852b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1853b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18543ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMul::InferRange(Zone* zone) { 1855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1857b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1858b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 18593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->MulAndCheckOverflow(r, b) || 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (((r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) && 1863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MulMinusOne())) { 1864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Truncated int multiplication is too precise and therefore not the 1865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // same as converting to Double and back. 1866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle truncated integer multiplication by -1 special. 1867b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1868b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ((a->CanBeZero() && b->CanBeNegative()) || 1872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeNegative() && b->CanBeZero()))); 1873b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1874b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1876b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1877b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1878b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1879b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18803ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HDiv::InferRange(Zone* zone) { 1881b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(); 1885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathFloorOfDiv::InferRange(Zone* zone) { 1903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsInteger32()) { 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 19063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(); 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt)) { 1911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kLeftCanBeMinInt); 1912b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1913b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1916b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1917b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBePositive()) { 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBePositive); 1920b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1921b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1928b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1929b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1930b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 19313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1932b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1933b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1934b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1935b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns the absolute value of its argument minus one, avoiding undefined 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// behavior at kMinInt. 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AbsMinus1(int32_t a) { return a < 0 ? -(a + 1) : (a - 1); } 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 19413ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMod::InferRange(Zone* zone) { 1942b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1943b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The magnitude of the modulus is bounded by the right operand. 1947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t positive_bound = Max(AbsMinus1(b->lower()), AbsMinus1(b->upper())); 1948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The result of the modulo operation has the sign of its left operand. 1950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool left_can_be_negative = a->CanBeMinusZero() || a->CanBeNegative(); 1951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(left_can_be_negative ? -positive_bound : 0, 1952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBePositive() ? positive_bound : 0); 1953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_can_be_negative); 1956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kCanOverflow); 1963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(HValue::kCanBeDivByZero); 1967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1968b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1969b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 19703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1973b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1974b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochInductionVariableData* InductionVariableData::ExaminePhi(HPhi* phi) { 1976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi->block()->loop_information() == NULL) return NULL; 1977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi->OperandCount() != 2) return NULL; 1978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t candidate_increment; 1979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch candidate_increment = ComputeIncrement(phi, phi->OperandAt(0)); 1981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (candidate_increment != 0) { 1982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(phi->block()->graph()->zone()) 1983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableData(phi, phi->OperandAt(1), candidate_increment); 1984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch candidate_increment = ComputeIncrement(phi, phi->OperandAt(1)); 1987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (candidate_increment != 0) { 1988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(phi->block()->graph()->zone()) 1989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableData(phi, phi->OperandAt(0), candidate_increment); 1990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 1993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch/* 1997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * This function tries to match the following patterns (and all the relevant 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * variants related to |, & and + being commutative): 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * base | constant_or_mask 2000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * base & constant_and_mask 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * (base + constant_offset) & constant_and_mask 2002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * (base - constant_offset) & constant_and_mask 2003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch */ 2004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::DecomposeBitwise( 2005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value, 2006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitwiseDecompositionResult* result) { 2007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* base = IgnoreOsrValue(value); 2008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->base = value; 2009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!base->representation().IsInteger32()) return; 2011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base->IsBitwise()) { 2013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool allow_offset = false; 2014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask = 0; 2015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBitwise* bitwise = HBitwise::cast(base); 2017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (bitwise->right()->IsInteger32Constant()) { 2018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch mask = bitwise->right()->GetInteger32Constant(); 2019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base = bitwise->left(); 2020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (bitwise->left()->IsInteger32Constant()) { 2021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch mask = bitwise->left()->GetInteger32Constant(); 2022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base = bitwise->right(); 2023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (bitwise->op() == Token::BIT_AND) { 2027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->and_mask = mask; 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch allow_offset = true; 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (bitwise->op() == Token::BIT_OR) { 2030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->or_mask = mask; 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->context = bitwise->context(); 2036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (allow_offset) { 2038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base->IsAdd()) { 2039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAdd* add = HAdd::cast(base); 2040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (add->right()->IsInteger32Constant()) { 2041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base = add->left(); 2042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (add->left()->IsInteger32Constant()) { 2043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base = add->right(); 2044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (base->IsSub()) { 2046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSub* sub = HSub::cast(base); 2047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (sub->right()->IsInteger32Constant()) { 2048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base = sub->left(); 2049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->base = base; 2054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::AddCheck(HBoundsCheck* check, 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t upper_limit) { 2060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(limit_validity() != NULL); 2061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (limit_validity() != check->block() && 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !limit_validity()->Dominates(check->block())) return; 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!phi()->block()->current_loop()->IsNestedInThisLoop( 2064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch check->block()->current_loop())) return; 2065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChecksRelatedToLength* length_checks = checks(); 2067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (length_checks != NULL) { 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_checks->length() == check->length()) break; 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_checks = length_checks->next(); 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_checks == NULL) { 2072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_checks = new(check->block()->zone()) 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChecksRelatedToLength(check->length(), checks()); 2074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch checks_ = length_checks; 2075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_checks->AddCheck(check, upper_limit); 2078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::ChecksRelatedToLength::CloseCurrentBlock() { 2082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (checks() != NULL) { 2083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableCheck* c = checks(); 2084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* current_block = c->check()->block(); 2085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (c != NULL && c->check()->block() == current_block) { 2086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c->set_upper_limit(current_upper_limit_); 2087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c = c->next(); 2088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::ChecksRelatedToLength::UseNewIndexInCurrentBlock( 2094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Token::Value token, 2095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask, 2096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* index_base, 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context) { 2098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(first_check_in_block() != NULL); 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* previous_index = first_check_in_block()->index(); 2100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(context != NULL); 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = index_base->block()->graph()->zone(); 2103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_added_constant(HConstant::New(zone, context, mask)); 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (added_index() != NULL) { 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_constant()->InsertBefore(added_index()); 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_constant()->InsertBefore(first_check_in_block()); 2108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (added_index() == NULL) { 2111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch first_check_in_block()->ReplaceAllUsesWith(first_check_in_block()->index()); 2112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* new_index = HBitwise::New(zone, context, token, index_base, 2113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_constant()); 2114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(new_index->IsBitwise()); 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_index->ClearAllSideEffects(); 2116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_index->AssumeRepresentation(Representation::Integer32()); 2117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_added_index(HBitwise::cast(new_index)); 2118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_index()->InsertBefore(first_check_in_block()); 2119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(added_index()->op() == token); 2121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_index()->SetOperandAt(1, index_base); 2123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch added_index()->SetOperandAt(2, added_constant()); 2124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch first_check_in_block()->SetOperandAt(0, added_index()); 2125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (previous_index->HasNoUses()) { 2126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch previous_index->DeleteAndReplaceWith(NULL); 2127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::ChecksRelatedToLength::AddCheck( 2131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBoundsCheck* check, 2132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t upper_limit) { 2133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitwiseDecompositionResult decomposition; 2134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableData::DecomposeBitwise(check->index(), &decomposition); 2135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (first_check_in_block() == NULL || 2137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch first_check_in_block()->block() != check->block()) { 2138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CloseCurrentBlock(); 2139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch first_check_in_block_ = check; 2141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_added_index(NULL); 2142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_added_constant(NULL); 2143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_and_mask_in_block_ = decomposition.and_mask; 2144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_or_mask_in_block_ = decomposition.or_mask; 2145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_upper_limit_ = upper_limit; 2146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableCheck* new_check = new(check->block()->graph()->zone()) 2148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableCheck(check, checks_, upper_limit); 2149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch checks_ = new_check; 2150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (upper_limit > current_upper_limit()) { 2154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_upper_limit_ = upper_limit; 2155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (decomposition.and_mask != 0 && 2158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_or_mask_in_block() == 0) { 2159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_and_mask_in_block() == 0 || 2160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.and_mask > current_and_mask_in_block()) { 2161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UseNewIndexInCurrentBlock(Token::BIT_AND, 2162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.and_mask, 2163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.base, 2164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.context); 2165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_and_mask_in_block_ = decomposition.and_mask; 2166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch check->set_skip_check(); 2168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_and_mask_in_block() == 0) { 2170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (decomposition.or_mask > current_or_mask_in_block()) { 2171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UseNewIndexInCurrentBlock(Token::BIT_OR, 2172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.or_mask, 2173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.base, 2174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decomposition.context); 2175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_or_mask_in_block_ = decomposition.or_mask; 2176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch check->set_skip_check(); 2178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!check->skip_check()) { 2181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableCheck* new_check = new(check->block()->graph()->zone()) 2182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableCheck(check, checks_, upper_limit); 2183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch checks_ = new_check; 2184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch/* 2189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * This method detects if phi is an induction variable, with phi_operand as 2190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * its "incremented" value (the other operand would be the "base" value). 2191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * 2192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * It cheks is phi_operand has the form "phi + constant". 2193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * If yes, the constant is the increment that the induction variable gets at 2194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * every loop iteration. 2195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Otherwise it returns 0. 2196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch */ 2197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t InductionVariableData::ComputeIncrement(HPhi* phi, 2198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* phi_operand) { 2199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!phi_operand->representation().IsInteger32()) return 0; 2200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi_operand->IsAdd()) { 2202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAdd* operation = HAdd::cast(phi_operand); 2203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation->left() == phi && 2204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch operation->right()->IsInteger32Constant()) { 2205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return operation->right()->GetInteger32Constant(); 2206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operation->right() == phi && 2207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch operation->left()->IsInteger32Constant()) { 2208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return operation->left()->GetInteger32Constant(); 2209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (phi_operand->IsSub()) { 2211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSub* operation = HSub::cast(phi_operand); 2212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation->left() == phi && 2213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch operation->right()->IsInteger32Constant()) { 2214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return -operation->right()->GetInteger32Constant(); 2215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return 0; 2219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch/* 2223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Swaps the information in "update" with the one contained in "this". 2224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * The swapping is important because this method is used while doing a 2225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * dominator tree traversal, and "update" will retain the old data that 2226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * will be restored while backtracking. 2227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch */ 2228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::UpdateAdditionalLimit( 2229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableLimitUpdate* update) { 2230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(update->updated_variable == this); 2231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (update->limit_is_upper) { 2232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch swap(&additional_upper_limit_, &update->limit); 2233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch swap(&additional_upper_limit_is_included_, &update->limit_is_included); 2234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch swap(&additional_lower_limit_, &update->limit); 2236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch swap(&additional_lower_limit_is_included_, &update->limit_is_included); 2237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t InductionVariableData::ComputeUpperLimit(int32_t and_mask, 2242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t or_mask) { 2243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Should be Smi::kMaxValue but it must fit 32 bits; lower is safe anyway. 2244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const int32_t MAX_LIMIT = 1 << 30; 2245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t result = MAX_LIMIT; 2247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (limit() != NULL && 2249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit()->IsInteger32Constant()) { 2250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t limit_value = limit()->GetInteger32Constant(); 2251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!limit_included()) { 2252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit_value--; 2253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (limit_value < result) result = limit_value; 2255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (additional_upper_limit() != NULL && 2258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch additional_upper_limit()->IsInteger32Constant()) { 2259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t limit_value = additional_upper_limit()->GetInteger32Constant(); 2260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!additional_upper_limit_is_included()) { 2261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit_value--; 2262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (limit_value < result) result = limit_value; 2264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (and_mask > 0 && and_mask < MAX_LIMIT) { 2267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (and_mask < result) result = and_mask; 2268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Add the effect of the or_mask. 2272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result |= or_mask; 2273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result >= MAX_LIMIT ? kNoLimit : result; 2275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* InductionVariableData::IgnoreOsrValue(HValue* v) { 2279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!v->IsPhi()) return v; 2280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HPhi* phi = HPhi::cast(v); 2281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi->OperandCount() != 2) return v; 2282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi->OperandAt(0)->block()->is_osr_entry()) { 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return phi->OperandAt(1); 2284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (phi->OperandAt(1)->block()->is_osr_entry()) { 2285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return phi->OperandAt(0); 2286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return v; 2288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochInductionVariableData* InductionVariableData::GetInductionVariableData( 2293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* v) { 2294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v = IgnoreOsrValue(v); 2295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (v->IsPhi()) { 2296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HPhi::cast(v)->induction_variable_data(); 2297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 2299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch/* 2303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Check if a conditional branch to "current_branch" with token "token" is 2304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * the branch that keeps the induction loop running (and, conversely, will 2305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * terminate it if the "other_branch" is taken). 2306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * 2307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Three conditions must be met: 2308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * - "current_branch" must be in the induction loop. 2309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * - "other_branch" must be out of the induction loop. 2310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * - "token" and the induction increment must be "compatible": the token should 2311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * be a condition that keeps the execution inside the loop until the limit is 2312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * reached. 2313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch */ 2314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool InductionVariableData::CheckIfBranchIsLoopGuard( 2315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Token::Value token, 2316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* current_branch, 2317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* other_branch) { 2318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!phi()->block()->current_loop()->IsNestedInThisLoop( 2319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_branch->current_loop())) { 2320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (phi()->block()->current_loop()->IsNestedInThisLoop( 2324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other_branch->current_loop())) { 2325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (increment() > 0 && (token == Token::LT || token == Token::LTE)) { 2329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (increment() < 0 && (token == Token::GT || token == Token::GTE)) { 2332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Token::IsInequalityOp(token) && (increment() == 1 || increment() == -1)) { 2335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid InductionVariableData::ComputeLimitFromPredecessorBlock( 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* block, 2344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LimitFromPredecessorBlock* result) { 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block->predecessors()->length() != 1) return; 2346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* predecessor = block->predecessors()->at(0); 2347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* end = predecessor->last(); 2348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!end->IsCompareNumericAndBranch()) return; 2350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCompareNumericAndBranch* branch = HCompareNumericAndBranch::cast(end); 2351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Token::Value token = branch->token(); 2353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!Token::IsArithmeticCompareOp(token)) return; 2354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* other_target; 2356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block == branch->SuccessorAt(0)) { 2357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other_target = branch->SuccessorAt(1); 2358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other_target = branch->SuccessorAt(0); 2360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token = Token::NegateCompareOp(token); 2361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block == branch->SuccessorAt(1)); 2362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableData* data; 2365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data = GetInductionVariableData(branch->left()); 2367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* limit = branch->right(); 2368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (data == NULL) { 2369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data = GetInductionVariableData(branch->right()); 2370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token = Token::ReverseCompareOp(token); 2371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit = branch->left(); 2372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (data != NULL) { 2375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->variable = data; 2376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->token = token; 2377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->limit = limit; 2378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->other_target = other_target; 2379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch/* 2384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Compute the limit that is imposed on an induction variable when entering 2385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * "block" (if any). 2386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * If the limit is the "proper" induction limit (the one that makes the loop 2387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * terminate when the induction variable reaches it) it is stored directly in 2388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * the induction variable data. 2389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * Otherwise the limit is written in "additional_limit" and the method 2390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch * returns true. 2391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch */ 2392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool InductionVariableData::ComputeInductionVariableLimit( 2393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBasicBlock* block, 2394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InductionVariableLimitUpdate* additional_limit) { 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LimitFromPredecessorBlock limit; 2396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ComputeLimitFromPredecessorBlock(block, &limit); 2397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!limit.LimitIsValid()) return false; 2398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (limit.variable->CheckIfBranchIsLoopGuard(limit.token, 2400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block, 2401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.other_target)) { 2402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.variable->limit_ = limit.limit; 2403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.variable->limit_included_ = limit.LimitIsIncluded(); 2404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.variable->limit_validity_ = block; 2405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.variable->induction_exit_block_ = block->predecessors()->at(0); 2406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit.variable->induction_exit_target_ = limit.other_target; 2407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch additional_limit->updated_variable = limit.variable; 2410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch additional_limit->limit = limit.limit; 2411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch additional_limit->limit_is_upper = limit.LimitIsUpper(); 2412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch additional_limit->limit_is_included = limit.LimitIsIncluded(); 2413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathMinMax::InferRange(Zone* zone) { 2419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmiOrInteger32()) { 2420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 2421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 2422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* res = a->Copy(zone); 2423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation_ == kMathMax) { 2424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMax(b); 2425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(operation_ == kMathMin); 2427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMin(b); 2428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return res; 2430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 2432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPushArguments::AddInput(HValue* value) { 2437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 2438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(OperandCount() - 1, value); 2439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HPhi::PrintTo(OStream& os) const { // NOLINT 2443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "["; 2444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 2445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << NameOf(OperandAt(i)) << " "; 2446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << " uses:" << UseCount() << "_" 2448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << smi_non_phi_uses() + smi_indirect_uses() << "s_" 2449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << int32_non_phi_uses() + int32_indirect_uses() << "i_" 2450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << double_non_phi_uses() + double_indirect_uses() << "d_" 2451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << tagged_non_phi_uses() + tagged_indirect_uses() << "t" 2452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << TypeOf(this) << "]"; 2453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddInput(HValue* value) { 2457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 2458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetOperandAt(OperandCount() - 1, value); 2459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Mark phis that may have 'arguments' directly or indirectly as an operand. 2460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!CheckFlag(kIsArguments) && value->CheckFlag(kIsArguments)) { 2461b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetFlag(kIsArguments); 2462b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 246644f0eee88ff00398ff7f715fab053374d808c90dSteve Blockbool HPhi::HasRealUses() { 2467257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2468257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!it.value()->IsPhi()) return true; 246944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 247044f0eee88ff00398ff7f715fab053374d808c90dSteve Block return false; 247144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 247244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 247344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2474e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHValue* HPhi::GetRedundantReplacement() { 2475b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* candidate = NULL; 2476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 2477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int position = 0; 2478b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count && candidate == NULL) { 2479b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 2480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this) candidate = current; 2481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count) { 2483b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 2484b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this && current != candidate) return NULL; 2485b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(candidate != this); 2487b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return candidate; 2488b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2489b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2490b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2491b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::DeleteFromGraph() { 2492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 2493b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch block()->RemovePhi(this); 2494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() == NULL); 2495b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2496b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2497b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2498b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::InitRealUses(int phi_id) { 2499b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Initialize real uses. 2500b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch phi_id_ = phi_id; 2501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute a conservative approximation of truncating uses before inferring 2502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representations. The proper, exact computation will be done later, when 2503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inserting representation changes. 2504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToSmi); 2505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToInt32); 2506257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2507257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = it.value(); 2508257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!value->IsPhi()) { 2509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = value->observed_input_representation(it.index()); 2510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch non_phi_uses_[rep.kind()] += 1; 2511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d Phi is used by real #%d %s as %s\n", 2513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), value->id(), value->Mnemonic(), rep.Mnemonic()); 2514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsSimulate()) { 2516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToSmi)) { 2517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToSmi); 2518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToInt32)) { 2520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToInt32); 2521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2523b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2524b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2525b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2526b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2527b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2528b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddNonPhiUsesFrom(HPhi* other) { 2529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("adding to #%d Phi uses of #%d Phi: s%d i%d d%d t%d\n", 2531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), other->id(), 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other->non_phi_uses_[Representation::kSmi], 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other->non_phi_uses_[Representation::kInteger32], 2534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other->non_phi_uses_[Representation::kDouble], 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch other->non_phi_uses_[Representation::kTagged]); 2536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2538b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < Representation::kNumRepresentations; i++) { 2539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch indirect_uses_[i] += other->non_phi_uses_[i]; 2540b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2541b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2542b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2543b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2544b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddIndirectUsesTo(int* dest) { 2545b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < Representation::kNumRepresentations; i++) { 2546b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch dest[i] += indirect_uses_[i]; 2547b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2548b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2550b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::MergeWith(ZoneList<HSimulate*>* list) { 2552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!list->is_empty()) { 2553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSimulate* from = list->RemoveLast(); 2554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ZoneList<HValue*>* from_values = &from->values_; 2555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < from_values->length(); ++i) { 2556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from->HasAssignedIndexAt(i)) { 2557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = from->GetAssignedIndexAt(i); 2558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasValueForIndex(index)) continue; 2559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddAssignedValue(index, from_values->at(i)); 25603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 2561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) { 2562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_--; 2563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddPushedValue(from_values->at(i)); 2565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_ += from->pop_count_; 2569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch from->DeleteAndReplaceWith(NULL); 2570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2573b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HSimulate::PrintDataTo(OStream& os) const { // NOLINT 2575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "id=" << ast_id().ToInt(); 2576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " pop " << pop_count_; 2577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (values_.length() > 0) { 2578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " /"; 2579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values_.length() - 1; i >= 0; --i) { 2580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " var[" << GetAssignedIndexAt(i) << "] = "; 2582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " push "; 2584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(values_[i]); 2586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << ","; 2587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 25883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 25903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 25913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::ReplayEnvironment(HEnvironment* env) { 2594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (done_with_replay_) return; 2595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->set_ast_id(ast_id()); 2597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Drop(pop_count()); 2598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values()->length() - 1; i >= 0; --i) { 2599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values()->at(i); 2600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Bind(GetAssignedIndexAt(i), value); 2602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Push(value); 2604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch done_with_replay_ = true; 2607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic void ReplayEnvironmentNested(const ZoneList<HValue*>* values, 2611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCapturedObject* other) { 2612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < values->length(); ++i) { 2613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values->at(i); 2614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->IsCapturedObject()) { 2615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HCapturedObject::cast(value)->capture_id() == other->capture_id()) { 2616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch values->at(i) = other; 2617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(HCapturedObject::cast(value)->values(), other); 2619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Replay captured objects by replacing all captured objects with the 2626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// same capture id in the current and all outer environments. 2627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCapturedObject::ReplayEnvironment(HEnvironment* env) { 2628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (env != NULL) { 2630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(env->values(), this); 2631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env = env->outer(); 2632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCapturedObject::PrintDataTo(OStream& os) const { // NOLINT 2637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "#" << capture_id() << " "; 2638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HDematerializedObject::PrintDataTo(os); 2639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HEnterInlined::RegisterReturnTarget(HBasicBlock* return_target, 2643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone) { 2644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(return_target->IsInlineReturnTarget()); 2645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_targets_.Add(return_target, zone); 2646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HEnterInlined::PrintDataTo(OStream& os) const { // NOLINT 2650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << function()->debug_name()->ToCString().get() 2651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ", id=" << function()->id().ToInt(); 2652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsInteger32(double value) { 2656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double roundtrip_value = static_cast<double>(static_cast<int32_t>(value)); 2657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return bit_cast<int64_t>(roundtrip_value) == bit_cast<int64_t>(value); 2658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(Handle<Object> object, Representation r) 2662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : HTemplateInstruction<0>(HType::FromValue(object)), 2663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_(Unique<Object>::CreateUninitialized(object)), 2664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_(Handle<Map>::null()), 2665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_(false), 2666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_(false), 2667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_(false), 2668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_double_value_(false), 2669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_external_reference_value_(false), 2670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_(true), 2671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_(object->BooleanValue()), 2672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_(false), 2673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_(kUnknownInstanceType) { 2674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsHeapObject()) { 2675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); 2676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = heap_object->GetIsolate(); 2677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map(heap_object->map(), isolate); 2678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_ = !isolate->heap()->InNewSpace(*object); 2679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_ = map->instance_type(); 2680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_ = map->is_undetectable(); 2681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map->is_stable()) object_map_ = Unique<Map>::CreateImmovable(map); 2682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_ = (instance_type_ == MAP_TYPE && 2683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map>::cast(heap_object)->is_stable()); 2684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsNumber()) { 2686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double n = object->Number(); 2687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_ = IsInteger32(n); 2688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_value_ = DoubleToInt32(n); 2689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_ = has_int32_value_ && Smi::IsValid(int32_value_); 2690b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch double_value_ = n; 2691b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch has_double_value_ = true; 2692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(titzer): if this heap number is new space, tenure a new one. 2693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(Unique<Object> object, 2700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Map> object_map, 2701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool has_stable_map_value, 2702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r, 2703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType type, 2704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_not_in_new_space, 2705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool boolean_value, 2706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_undetectable, 2707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType instance_type) 2708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : HTemplateInstruction<0>(type), 2709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_(object), 2710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_(object_map), 2711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_(has_stable_map_value), 2712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_(false), 2713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_(false), 2714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_double_value_(false), 2715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_external_reference_value_(false), 2716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_(is_not_in_new_space), 2717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_(boolean_value), 2718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_(is_undetectable), 2719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_(instance_type) { 2720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object.handle().is_null()); 2721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!type.IsTaggedNumber() || type.IsNone()); 2722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(int32_t integer_value, 2727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r, 2728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_not_in_new_space, 2729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> object) 2730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : object_(object), 2731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_(Handle<Map>::null()), 2732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_(false), 2733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_(Smi::IsValid(integer_value)), 2734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_(true), 2735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_double_value_(true), 2736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_external_reference_value_(false), 2737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_(is_not_in_new_space), 2738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_(integer_value != 0), 2739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_(false), 2740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_value_(integer_value), 2741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double_value_(FastI2D(integer_value)), 2742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_(kUnknownInstanceType) { 2743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_smi = has_smi_value_ && !could_be_heapobject; 2747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(double double_value, 2753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r, 2754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_not_in_new_space, 2755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> object) 2756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : object_(object), 2757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_(Handle<Map>::null()), 2758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_(false), 2759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_(IsInteger32(double_value)), 2760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_double_value_(true), 2761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_external_reference_value_(false), 2762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_(is_not_in_new_space), 2763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_(double_value != 0 && !std::isnan(double_value)), 2764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_(false), 2765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_value_(DoubleToInt32(double_value)), 2766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double_value_(double_value), 2767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_(kUnknownInstanceType) { 2768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_ = has_int32_value_ && Smi::IsValid(int32_value_); 2769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_smi = has_smi_value_ && !could_be_heapobject; 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(ExternalReference reference) 2779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : HTemplateInstruction<0>(HType::Any()), 2780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_(Unique<Object>(Handle<Object>::null())), 2781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_(Handle<Map>::null()), 2782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_(false), 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_smi_value_(false), 2784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_int32_value_(false), 2785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_double_value_(false), 2786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_external_reference_value_(true), 2787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_(true), 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_(true), 2789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_(false), 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch external_reference_value_(reference), 2791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_(kUnknownInstanceType) { 2792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(Representation::External()); 2793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HConstant::Initialize(Representation r) { 2797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsNone()) { 2798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_smi_value_ && SmiValuesAre31Bits()) { 2799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Smi(); 2800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_int32_value_) { 2801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 2802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_double_value_) { 2803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Double(); 2804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_external_reference_value_) { 2805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::External(); 2806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = object_.handle(); 2808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsJSObject()) { 2809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to eagerly migrate JSObjects that have deprecated maps. 2810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> js_object = Handle<JSObject>::cast(object); 2811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (js_object->map()->is_deprecated()) { 2812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::TryMigrateInstance(js_object); 2813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Tagged(); 2816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 2819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we have an existing handle, zap it, because it might be a heap 2820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // number which we must not re-use when copying this HConstant to 2821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Tagged representation later, because having Smi representation now 2822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // could cause heap object checks not to get emitted. 2823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_ = Unique<Object>(Handle<Object>::null()); 2824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_representation(r); 2826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kUseGVN); 2827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::ImmortalImmovable() const { 2831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_int32_value_) { 2832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_double_value_) { 2835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSpecialDouble()) { 2836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2839b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_external_reference_value_) { 2841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate()->heap(); 2846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->minus_zero_value())); 2847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->nan_value())); 2848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return 2849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define IMMORTAL_IMMOVABLE_ROOT(name) \ 2850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name()) || 2851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IMMORTAL_IMMOVABLE_ROOT_LIST(IMMORTAL_IMMOVABLE_ROOT) 2852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef IMMORTAL_IMMOVABLE_ROOT 2853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define INTERNALIZED_STRING(name, value) \ 2854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name()) || 2855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INTERNALIZED_STRING_LIST(INTERNALIZED_STRING) 2856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef INTERNALIZED_STRING 2857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define STRING_TYPE(NAME, size, name, Name) \ 2858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name##_map()) || 2859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STRING_TYPE_LIST(STRING_TYPE) 2860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef STRING_TYPE 2861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false; 2862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::EmitAtUses() { 2866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 2867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block()->graph()->has_osr() && 2868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->IsStandardConstant(this)) { 2869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(titzer): this seems like a hack that should be fixed by custom OSR. 2870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return true; 2873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsCell()) return false; 2874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsDouble()) return false; 2875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsExternal()) return false; 2876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2877b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2878b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2879b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant* HConstant::CopyToRepresentation(Representation r, Zone* zone) const { 2881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi() && !has_smi_value_) return NULL; 2882b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (r.IsInteger32() && !has_int32_value_) return NULL; 2883b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (r.IsDouble() && !has_double_value_) return NULL; 2884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsExternal() && !has_external_reference_value_) return NULL; 2885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_int32_value_) { 2886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(int32_value_, r, is_not_in_new_space_, object_); 2887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_double_value_) { 2889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(double_value_, r, is_not_in_new_space_, object_); 2890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_external_reference_value_) { 2892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(external_reference_value_); 2893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(object_, 2896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_map_, 2897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch has_stable_map_value_, 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r, 2899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type_, 2900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_, 2901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch boolean_value_, 2902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_undetectable_, 2903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instance_type_); 2904b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2905b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2906b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMaybe<HConstant*> HConstant::CopyToTruncatedInt32(Zone* zone) { 2908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_int32_value_) { 2910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(int32_value_, 2911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), 2912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_, 2913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_); 2914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_double_value_) { 2915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(DoubleToInt32(double_value_), 2916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch is_not_in_new_space_, 2918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_); 2919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Maybe<HConstant*>(res != NULL, res); 2921b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2922b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2923b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMaybe<HConstant*> HConstant::CopyToTruncatedNumber(Zone* zone) { 2925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> handle = this->handle(zone->isolate()); 2927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (handle->IsBoolean()) { 2928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = handle->BooleanValue() ? 2929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) HConstant(1) : new(zone) HConstant(0); 2930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (handle->IsUndefined()) { 2931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(base::OS::nan_value()); 2932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (handle->IsNull()) { 2933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(0); 29348b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 2935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Maybe<HConstant*>(res != NULL, res); 2936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HConstant::PrintDataTo(OStream& os) const { // NOLINT 2940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_int32_value_) { 2941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << int32_value_ << " "; 2942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_double_value_) { 2943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << double_value_ << " "; 2944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (has_external_reference_value_) { 2945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << reinterpret_cast<void*>(external_reference_value_.address()) << " "; 2946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The handle() method is silently and lazily mutating the object. 2948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> h = const_cast<HConstant*>(this)->handle(Isolate::Current()); 2949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Brief(*h) << " "; 2950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasStableMapValue()) os << "[stable-map] "; 2951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasObjectMap()) os << "[map " << *ObjectMap().handle() << "] "; 2952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!is_not_in_new_space_) os << "[new space] "; 2954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBinaryOperation::PrintDataTo(OStream& os) const { // NOLINT 2959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCanOverflow)) os << " !"; 2961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::InferRepresentation(HInferRepresentationPhase* h_infer) { 2967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 2972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 2973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 2974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.IsNone()) { 2977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 2978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 2979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromOutput(); 2981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "output"); 2982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromInputs() { 2987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Determine the worst case of observed input representations and 2988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the currently assumed output representation. 2989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i <= 2; ++i) { 2991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_input_representation(i)); 2992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 2994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 2995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBinaryOperation::IgnoreObservedOutputRepresentation( 3005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation current_rep) { 3006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ((current_rep.IsInteger32() && CheckUsesForFlag(kTruncatingToInt32)) || 3007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (current_rep.IsSmi() && CheckUsesForFlag(kTruncatingToSmi))) && 3008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mul in Integer32 mode would be too precise. 3009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!this->IsMul() || HMul::cast(this)->MulMinusOne()); 30108b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 30118b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromOutput() { 3014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 3015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Consider observed output representation, but ignore it if it's Double, 3016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this instruction is not a division, and all its uses are truncating 3017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to Integer32. 3018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.is_more_general_than(rep) && 3019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !IgnoreObservedOutputRepresentation(rep)) { 3020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return observed_output_representation_; 3021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3024b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3025b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::AssumeRepresentation(Representation r) { 3027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(1, r); 3028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(2, r); 3029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue::AssumeRepresentation(r); 3030b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3031b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3032b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HMathMinMax::InferRepresentation(HInferRepresentationPhase* h_infer) { 3034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 3035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 3036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 3037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not care about uses. 3038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 30413ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HBitwise::InferRange(Zone* zone) { 3042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == Token::BIT_XOR) { 3043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->HasRange() && right()->HasRange()) { 3044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The maximum value has the high bit, and all bits below, set: 3045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (1 << high) - 1. 3046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the range can be negative, the minimum int is a negative number with 3047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the high bit, and all bits below, unset: 3048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -(1 << high). 3049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If it cannot be negative, conservatively choose 0 as minimum int. 3050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_upper = left()->range()->upper(); 3051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_lower = left()->range()->lower(); 3052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_upper = right()->range()->upper(); 3053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_lower = right()->range()->lower(); 3054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_upper < 0) left_upper = ~left_upper; 3056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_lower < 0) left_lower = ~left_lower; 3057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_upper < 0) right_upper = ~right_upper; 3058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_lower < 0) right_lower = ~right_lower; 3059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int high = MostSignificantBit( 3061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<uint32_t>( 3062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_upper | left_lower | right_upper | right_lower)); 3063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t limit = 1; 3065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit <<= high; 3066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t min = (left()->range()->CanBeNegative() || 3067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->range()->CanBeNegative()) 3068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? static_cast<int32_t>(-limit) : 0; 3069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(min, static_cast<int32_t>(limit - 1)); 3070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 3072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 3073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 30753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int32_t kDefaultMask = static_cast<int32_t>(0xffffffff); 3076e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t left_mask = (left()->range() != NULL) 3077e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? left()->range()->Mask() 30783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 3079e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t right_mask = (right()->range() != NULL) 3080e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? right()->range()->Mask() 30813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 30823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result_mask = (op() == Token::BIT_AND) 30833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left_mask & right_mask 30843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : left_mask | right_mask; 3085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result_mask >= 0) return new(zone) Range(0, result_mask); 3086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 3088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 3089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3090b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3091b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 30933ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSar::InferRange(Zone* zone) { 3094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 3095b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 3096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 3097e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 30983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 30993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 3100e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Sar(c->Integer32Value()); 3101b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 3102b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3103b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 31043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 3105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 31083ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShr::InferRange(Zone* zone) { 310969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (right()->IsConstant()) { 311069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HConstant* c = HConstant::cast(right()); 311169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (c->HasInteger32Value()) { 311269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch int shift_count = c->Integer32Value() & 0x1f; 311369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (left()->range()->CanBeNegative()) { 311469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Only compute bounds if the result always fits into an int32. 311569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return (shift_count >= 1) 31163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? new(zone) Range(0, 31173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<uint32_t>(0xffffffff) >> shift_count) 31183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 311969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else { 312069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // For positive inputs we can use the >> operator. 312169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (left()->range() != NULL) 31223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 31233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 312469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->Sar(c->Integer32Value()); 312569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 312669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 312769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 312869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 31293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 313069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 313169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 313269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 31333ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShl::InferRange(Zone* zone) { 3134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 3135b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 3136b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 3137e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 31383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 31393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 3140e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Shl(c->Integer32Value()); 3141b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 3142b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3143b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 31443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 3145b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3146b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3147b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadNamedField::InferRange(Zone* zone) { 3149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger8()) { 3150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 3151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger8()) { 3153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 3154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger16()) { 3156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 3157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger16()) { 3159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 3160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().IsStringLength()) { 3162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(0, String::kMaxLength); 3163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 3165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadKeyed::InferRange(Zone* zone) { 31693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (elements_kind()) { 3170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT8_ELEMENTS: 3171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 3172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_ELEMENTS: 3173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_CLAMPED_ELEMENTS: 3174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 3175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT16_ELEMENTS: 3176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 3177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT16_ELEMENTS: 3178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 31793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 31803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 31813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 31823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 31833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCompareGeneric::PrintDataTo(OStream& os) const { // NOLINT 3186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 3187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryOperation::PrintDataTo(os); 3188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStringCompareAndBranch::PrintDataTo(OStream& os) const { // NOLINT 3192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 3193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 3194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCompareNumericAndBranch::PrintDataTo(OStream& os) const { // NOLINT 3198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " " << NameOf(left()) << " " << NameOf(right()); 3199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 3200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HCompareObjectEqAndBranch::PrintDataTo(OStream& os) const { // NOLINT 3204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 3205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareObjectEqAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 3211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 3212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left()->IsConstant() && right()->IsConstant()) { 3215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(left())->DataEquals(HConstant::cast(right())) 3216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool ConstantIsObject(HConstant* constant, Isolate* isolate) { 3225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasNumberValue()) return false; 3226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->GetUnique().IsKnownGlobal(isolate->heap()->null_value())) { 3227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->IsUndetectable()) return false; 3230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType type = constant->GetInstanceType(); 3231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (FIRST_NONCALLABLE_SPEC_OBJECT_TYPE <= type) && 3232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (type <= LAST_NONCALLABLE_SPEC_OBJECT_TYPE); 3233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsObjectAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 3238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = ConstantIsObject(HConstant::cast(value()), isolate()) 3239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsStringAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 3249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 3250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 3253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->HasStringValue() 3254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsString()) { 3258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = FirstSuccessor(); 3259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsSmi() || 3262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsNull() || 3263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsBoolean() || 3264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsUndefined() || 3265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsJSObject()) { 3266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SecondSuccessor(); 3267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsUndetectableAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 3276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->IsUndetectable() 3277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HHasInstanceTypeAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 3287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType type = HConstant::cast(value())->GetInstanceType(); 3288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (from_ <= type) && (type <= to_) 3289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareHoleAndBranch::InferRepresentation( 3298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 3299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(value()->representation()); 3300b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3301b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3302b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareNumericAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left() == right() && 3305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left()->representation().IsSmiOrInteger32()) { 3306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (token() == Token::EQ || 3307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::EQ_STRICT || 3308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::LTE || 3309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::GTE) 3310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 33153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 33163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareMinusZeroAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 3319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 3320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value()); 3321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasDoubleValue()) { 3322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = IsMinusZero(constant->DoubleValue()) 3323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 3324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->representation().IsSmiOrInteger32()) { 3328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A Smi or Integer32 cannot contain minus zero. 3329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SecondSuccessor(); 3330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 3333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3334589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 3335589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 3336589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 3337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareMinusZeroAndBranch::InferRepresentation( 3338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 3339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(value()->representation()); 33403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 33413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HGoto::PrintDataTo(OStream& os) const { // NOLINT 3344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << *SuccessorAt(0); 33453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 33463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 33473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareNumericAndBranch::InferRepresentation( 3349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 3350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 3351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 3352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_left = observed_input_representation(0); 3353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_right = observed_input_representation(1); 3354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 3356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_left); 3357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_right); 3358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone() || rep.IsSmiOrInteger32()) { 3359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 3360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 3361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Double(); 3363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 33663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // According to the ES5 spec (11.9.3, 11.8.5), Equality comparisons (==, === 33673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // and !=) have special handling of undefined, e.g. undefined == undefined 33683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // is 'true'. Relational comparisons have a different semantic, first 33693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // calling ToPrimitive() on their arguments. The standard Crankshaft 3370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // tagged-to-double conversion to ensure the HCompareNumericAndBranch's 3371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inputs are doubles caused 'undefined' to be converted to NaN. That's 3372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // compatible out-of-the box with ordered relational comparisons (<, >, <=, 33733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // >=). However, for equality comparisons (and for 'in' and 'instanceof'), 33743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // it is not consistent with the spec. For example, it would cause undefined 33753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // == undefined (should be true) to be evaluated as NaN == NaN 33763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // (false). Therefore, any comparisons other than ordered relational 33773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // comparisons must cause a deopt when one of their arguments is undefined. 33783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // See also v8:1434 3379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Token::IsOrderedRelationalCompareOp(token_)) { 3380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kAllowUndefinedAsNaN); 33813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3382b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(rep); 3384b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3385b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3386b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HParameter::PrintDataTo(OStream& os) const { // NOLINT 3388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << index(); 3389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3390b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3391b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadNamedField::PrintDataTo(OStream& os) const { // NOLINT 3393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_; 3394b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps() != NULL) { 3396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [" << *maps()->at(0).handle(); 3397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 3398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 339944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 3400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 340144f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 340244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 3404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 340544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 340644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 340744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadNamedGeneric::PrintDataTo(OStream& os) const { // NOLINT 3409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> n = Handle<String>::cast(name()); 3410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "." << n->ToCString().get(); 341144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 341244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 341344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadKeyed::PrintDataTo(OStream& os) const { // NOLINT 3415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!is_external()) { 3416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 3417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(elements_kind() >= FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND && 3419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind() <= LAST_EXTERNAL_ARRAY_ELEMENTS_KIND); 3420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 3421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 342269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 3423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 3425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 342669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 3427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (RequiresHoleCheck()) os << " check_hole"; 3429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 343069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 343169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 343269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 3433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 3434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 3435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 3436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 3437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 3438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t base_offset = BaseOffsetField::decode(bit_field_); 3439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset; 3440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 3441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 3442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset = addition_result.ValueOrDie(); 3443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!BaseOffsetField::is_valid(base_offset)) return false; 3444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bit_field_ = BaseOffsetField::update(bit_field_, base_offset); 3445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3447b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3448b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::UsesMustHandleHole() const { 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 3451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsExternalArrayElementsKind(elements_kind())) { 3455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hole_mode() == ALLOW_RETURN_HOLE) { 3459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 3460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return AllUsesCanTreatHoleAsNaN(); 3461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 3466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Holes are only returned as tagged values. 3470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsTagged()) { 34713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return false; 34723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 34733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3474257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3475257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* use = it.value(); 3476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use->IsChange()) return false; 3477257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 34783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::AllUsesCanTreatHoleAsNaN() const { 3484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsFastDoubleElementsKind(elements_kind()) && 3485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckUsesForFlag(HValue::kAllowUndefinedAsNaN); 3486257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 3487257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3488257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::RequiresHoleCheck() const { 3490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 3491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsExternalArrayElementsKind(elements_kind())) { 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !UsesMustHandleHole(); 34993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 35003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 35013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadKeyedGeneric::PrintDataTo(OStream& os) const { // NOLINT 3503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "[" << NameOf(key()) << "]"; 3504e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3505e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3506e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 35073ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HLoadKeyedGeneric::Canonicalize() { 35083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Recognize generic keyed loads that use property name generated 35093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by for-in statement as a key and rewrite them into fast property load 35103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by index. 3511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key()->IsLoadKeyed()) { 3512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HLoadKeyed* key_load = HLoadKeyed::cast(key()); 3513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_load->elements()->IsForInCacheArray()) { 35143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* names_cache = 3515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HForInCacheArray::cast(key_load->elements()); 35163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (names_cache->enumerable() == object()) { 35183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* index_cache = 35193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch names_cache->index_cache(); 35203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HCheckMapValue* map_check = 3521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCheckMapValue::New(block()->graph()->zone(), 3522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->GetInvalidContext(), 3523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object(), 3524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch names_cache->map()); 3525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* index = HLoadKeyed::New( 3526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->zone(), 3527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->GetInvalidContext(), 35283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index_cache, 35293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch key_load->key(), 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key_load->key(), 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key_load->elements_kind()); 35323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch map_check->InsertBefore(this); 35333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index->InsertBefore(this); 3534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(new(block()->zone()) HLoadFieldByIndex( 3535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object(), index)); 35363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 35413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreNamedGeneric::PrintDataTo(OStream& os) const { // NOLINT 3545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> n = Handle<String>::cast(name()); 3546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "." << n->ToCString().get() << " = " 3547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(value()); 35481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 35491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 35501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreNamedField::PrintDataTo(OStream& os) const { // NOLINT 3552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_ << " = " << NameOf(value()); 3553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsWriteBarrier()) os << " (write-barrier)"; 3554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_transition()) os << " (transition map " << *transition_map() << ")"; 3555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 3556b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreKeyed::PrintDataTo(OStream& os) const { // NOLINT 3560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!is_external()) { 3561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 3562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(elements_kind() >= FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND && 3564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind() <= LAST_EXTERNAL_ARRAY_ELEMENTS_KIND); 3565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 3566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 3569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 3570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "] = " << NameOf(value()); 35713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 35723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 35733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreKeyedGeneric::PrintDataTo(OStream& os) const { // NOLINT 3575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "[" << NameOf(key()) 3576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3577e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3578e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3579e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HTransitionElementsKind::PrintDataTo(OStream& os) const { // NOLINT 3581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()); 3582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = original_map().handle()->elements_kind(); 3583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = transitioned_map().handle()->elements_kind(); 3584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << *original_map().handle() << " [" 3585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(from_kind)->name() << "] -> " 3586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << *transitioned_map().handle() << " [" 3587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(to_kind)->name() << "]"; 3588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) os << " (simple)"; 3589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 35903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadGlobalCell::PrintDataTo(OStream& os) const { // NOLINT 3594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << *cell().handle() << "]"; 3595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (details_.IsConfigurable()) os << " (configurable)"; 3596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (details_.IsReadOnly()) os << " (read-only)"; 3597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 35983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadGlobalCell::RequiresHoleCheck() const { 3602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!details_.IsConfigurable()) return false; 36033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 36043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HValue* use = it.value(); 36053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!use->IsChange()) return true; 36063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return false; 3608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadGlobalGeneric::PrintDataTo(OStream& os) const { // NOLINT 3612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << name()->ToCString().get() << " "; 36138b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 36148b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 36158b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HInnerAllocatedObject::PrintDataTo(OStream& os) const { // NOLINT 3617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(base_object()) << " offset "; 3618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return offset()->PrintTo(os); 3619b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3620b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3621b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreGlobalCell::PrintDataTo(OStream& os) const { // NOLINT 3623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << *cell().handle() << "] = " << NameOf(value()); 3624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (details_.IsConfigurable()) os << " (configurable)"; 3625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (details_.IsReadOnly()) os << " (read-only)"; 3626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 36278b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 36288b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 36298b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HLoadContextSlot::PrintDataTo(OStream& os) const { // NOLINT 3631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << "[" << slot_index() << "]"; 36321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 36331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStoreContextSlot::PrintDataTo(OStream& os) const { // NOLINT 3636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(context()) << "[" << slot_index() 3637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3638b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 3639b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3640b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Implementation of type inference and type conversions. Calculates 3642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// the inferred type of this instruction based on the input operands. 3643b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3644e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHType HValue::CalculateInferredType() { 3645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return type_; 3646b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3647b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3648b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HPhi::CalculateInferredType() { 3650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (OperandCount() == 0) return HType::Tagged(); 3651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType result = OperandAt(0)->type(); 3652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < OperandCount(); ++i) { 3653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType current = OperandAt(i)->type(); 3654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = result.Combine(current); 3655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3657b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3658b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3659b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HChange::CalculateInferredType() { 3661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsDouble() && to().IsTagged()) return HType::HeapNumber(); 3662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return type(); 3663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3665b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromInputs() { 3667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (SupportsFlexibleFloorAndRound() && 3668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (op_ == kMathFloor || op_ == kMathRound)) { 3669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Floor and Round always take a double input. The integral result can be 3670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // used as an integer or a double. Infer the representation from the uses. 3671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 3674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 3675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 3676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation input_rep = value()->representation(); 3677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!input_rep.IsTagged()) { 3678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(input_rep); 3679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HAllocate::HandleSideEffectDominator(GVNFlag side_effect, 3685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator) { 3686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(side_effect == kNewSpacePromotion); 3687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_use_allocation_folding) return false; 3689b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to fold allocations together with their dominating allocations. 3691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator->IsAllocate()) { 3692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s)\n", 3694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check whether we are folding within the same block for local folding. 3700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_use_local_allocation_folding && dominator->block() != block()) { 3701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), crosses basic blocks\n", 3703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3706b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3707b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAllocate* dominator_allocate = HAllocate::cast(dominator); 3709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator_size = dominator_allocate->size(); 3710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* current_size = size(); 3711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): Add support for non-constant allocation in dominator. 3713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator_size->IsInteger32Constant()) { 3714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), " 3716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "dynamic allocation size in dominator\n", 3717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate = GetFoldableDominator(dominator_allocate); 3723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dominator_allocate == NULL) { 3724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_size_upper_bound()) { 3728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), " 3730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "can't estimate total allocation size\n", 3731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3735b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!current_size->IsInteger32Constant()) { 3737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If it's not constant then it is a size_in_bytes calculation graph 3738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // like this: (const_header_size + const_element_size * size). 3739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(current_size->IsInstruction()); 3740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* current_instr = HInstruction::cast(current_size); 3742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!current_instr->Dominates(dominator_allocate)) { 3743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), dynamic size " 3745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "value does not dominate target allocation\n", 3746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic()); 3748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK((IsNewSpaceAllocation() && 3754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->IsNewSpaceAllocation()) || 3755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (IsOldDataSpaceAllocation() && 3756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->IsOldDataSpaceAllocation()) || 3757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (IsOldPointerSpaceAllocation() && 3758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->IsOldPointerSpaceAllocation())); 3759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // First update the size of the dominator allocate instruction. 3761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size = dominator_allocate->size(); 3762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t original_object_size = 3763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(dominator_size)->GetInteger32Constant(); 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t dominator_size_constant = original_object_size; 3765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((dominator_size_constant & kDoubleAlignmentMask) != 0) { 3768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant += kDoubleSize / 2; 3769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t current_size_max_value = size_upper_bound()->GetInteger32Constant(); 3773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t new_dominator_size = dominator_size_constant + current_size_max_value; 37743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we clear the first word after folded memory, we cannot use the 3776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // whole Page::kMaxRegularHeapObjectSize memory. 3777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_dominator_size > Page::kMaxRegularHeapObjectSize - kPointerSize) { 3778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s) due to size: %d\n", 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic(), new_dominator_size); 3782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 37853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* new_dominator_size_value; 37871e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_size->IsInteger32Constant()) { 3789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_value = 3790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::CreateAndInsertBefore(zone, 3791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context(), 3792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size, 3793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::None(), 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate); 3795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* new_dominator_size_constant = 3797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::CreateAndInsertBefore(zone, 3798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context(), 3799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant, 3800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), 3801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate); 3802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Add old and new size together and insert. 3804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_size->ChangeRepresentation(Representation::Integer32()); 3805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_value = HAdd::New(zone, context(), 3807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_constant, current_size); 3808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_value->ClearFlag(HValue::kCanOverflow); 3809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_value->ChangeRepresentation(Representation::Integer32()); 3810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_dominator_size_value->InsertBefore(dominator_allocate); 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 38131e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->UpdateSize(new_dominator_size_value); 3815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator_allocate->MustAllocateDoubleAligned()) { 3818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->MakeDoubleAligned(); 3819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool keep_new_space_iterable = FLAG_log_gc || FLAG_heap_stats; 3823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifdef VERIFY_HEAP 3824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch keep_new_space_iterable = keep_new_space_iterable || FLAG_verify_heap; 3825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 3826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (keep_new_space_iterable && dominator_allocate->IsNewSpaceAllocation()) { 3828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->MakePrefillWithFiller(); 3829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): This is a short-term hack to make allocation mementos 3831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // work again in new space. 3832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->ClearNextMapWord(original_object_size); 3833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->UpdateClearNextMapWord(MustClearNextMapWord()); 3836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // After that replace the dominated allocate instruction. 3838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* inner_offset = HConstant::CreateAndInsertBefore( 3839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch zone, 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context(), 3841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant, 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::None(), 3843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this); 3844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* dominated_allocate_instr = 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInnerAllocatedObject::New(zone, 3847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context(), 3848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate, 3849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inner_offset, 3850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type()); 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominated_allocate_instr->InsertBefore(this); 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeleteAndReplaceWith(dominated_allocate_instr); 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) folded into #%d (%s)\n", 3855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic()); 3857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3859b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3860b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3861b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHAllocate* HAllocate::GetFoldableDominator(HAllocate* dominator) { 3863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsFoldable(dominator)) { 3864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We cannot hoist old space allocations over new space allocations. 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsNewSpaceAllocation() || dominator->IsNewSpaceAllocation()) { 3866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), new space hoisting\n", 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 3871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3872b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAllocate* dominator_dominator = dominator->dominating_allocate_; 3874b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We can hoist old data space allocations over an old pointer space 3876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // allocation and vice versa. For that we have to check the dominator 3877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // of the dominator allocate instruction. 3878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dominator_dominator == NULL) { 3879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominating_allocate_ = dominator; 3880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), different spaces\n", 3882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 3885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3886b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We can just fold old space allocations that are in the same basic block, 3888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // since it is not guaranteed that we fill up the whole allocated old 3889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // space memory. 3890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): Remove this limitation and add filler maps for each each 3891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // allocation as soon as we have store elimination. 3892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block()->block_id() != dominator_dominator->block()->block_id()) { 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), different basic blocks\n", 3895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_dominator->id(), 3896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_dominator->Mnemonic()); 3897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 3899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3900b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK((IsOldDataSpaceAllocation() && 3902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_dominator->IsOldDataSpaceAllocation()) || 3903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (IsOldPointerSpaceAllocation() && 3904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_dominator->IsOldPointerSpaceAllocation())); 3905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t current_size = HConstant::cast(size())->GetInteger32Constant(); 3907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HStoreNamedField* dominator_free_space_size = 3908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator->filler_free_space_size_; 3909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dominator_free_space_size != NULL) { 3910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We already hoisted one old space allocation, i.e., we already installed 3911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // a filler map. Hence, we just have to update the free space size. 3912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator->UpdateFreeSpaceFiller(current_size); 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This is the first old space allocation that gets hoisted. We have to 3915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // install a filler map since the follwing allocation may cause a GC. 3916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator->CreateFreeSpaceFiller(current_size); 3917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3918b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We can hoist the old space allocation over the actual dominator. 3920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return dominator_dominator; 3921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return dominator; 3923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HAllocate::UpdateFreeSpaceFiller(int32_t free_space_size) { 3927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(filler_free_space_size_ != NULL); 3928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We must explicitly force Smi representation here because on x64 we 3930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // would otherwise automatically choose int32, but the actual store 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // requires a Smi-tagged value. 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* new_free_space_size = HConstant::CreateAndInsertBefore( 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch zone, 3934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context(), 3935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch filler_free_space_size_->value()->GetInteger32Constant() + 3936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch free_space_size, 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Smi(), 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch filler_free_space_size_); 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch filler_free_space_size_->UpdateValue(new_free_space_size); 3940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HAllocate::CreateFreeSpaceFiller(int32_t free_space_size) { 3944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(filler_free_space_size_ == NULL); 3945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* free_space_instr = 3947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInnerAllocatedObject::New(zone, context(), dominating_allocate_, 3948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominating_allocate_->size(), type()); 3949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch free_space_instr->InsertBefore(this); 3950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* filler_map = HConstant::CreateAndInsertAfter( 3951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch zone, Unique<Map>::CreateImmovable( 3952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate()->factory()->free_space_map()), true, free_space_instr); 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* store_map = HStoreNamedField::New(zone, context(), 3954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch free_space_instr, HObjectAccess::ForMap(), filler_map); 3955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_map->SetFlag(HValue::kHasNoObservableSideEffects); 3956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_map->InsertAfter(filler_map); 3957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We must explicitly force Smi representation here because on x64 we 3959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // would otherwise automatically choose int32, but the actual store 3960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // requires a Smi-tagged value. 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* filler_size = HConstant::CreateAndInsertAfter( 3962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch zone, context(), free_space_size, Representation::Smi(), store_map); 3963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Must force Smi representation for x64 (see comment above). 3964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = 3965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess::ForMapAndOffset(isolate()->factory()->free_space_map(), 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FreeSpace::kSizeOffset, 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Smi()); 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HStoreNamedField* store_size = HStoreNamedField::New(zone, context(), 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch free_space_instr, access, filler_size); 3970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_size->SetFlag(HValue::kHasNoObservableSideEffects); 3971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_size->InsertAfter(filler_size); 3972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch filler_free_space_size_ = store_size; 3973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HAllocate::ClearNextMapWord(int offset) { 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustClearNextMapWord()) { 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess::ForObservableJSObjectOffset(offset); 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HStoreNamedField* clear_next_map = 3982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HStoreNamedField::New(zone, context(), this, access, 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->GetConstant0()); 3984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch clear_next_map->ClearAllSideEffects(); 3985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch clear_next_map->InsertAfter(this); 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 39875d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch} 39885d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 39895d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 3990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HAllocate::PrintDataTo(OStream& os) const { // NOLINT 3991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(size()) << " ("; 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsNewSpaceAllocation()) os << "N"; 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsOldPointerSpaceAllocation()) os << "P"; 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsOldDataSpaceAllocation()) os << "D"; 3995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) os << "A"; 3996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustPrefillWithFiller()) os << "F"; 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3998b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3999b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4000b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 4004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 4005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 4006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset_; 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 4008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 4009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset_ = addition_result.ValueOrDie(); 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 4011b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4012b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4013b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::NeedsCanonicalization() { 4015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If value is an integer or smi or comes from the result of a keyed load or 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant then it is either be a non-hole value or in the case of a constant 4017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the hole is only being stored explicitly: no need for canonicalization. 4018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // 4019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The exception to that is keyed loads from external float or double arrays: 4020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // these can load arbitrary representation of NaN. 40213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->IsConstant()) { 4023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 4024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4025b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->IsLoadKeyed()) { 4027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsExternalFloatOrDoubleElementsKind( 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HLoadKeyed::cast(value())->elements_kind()); 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4030b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->IsChange()) { 4032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HChange::cast(value())->from().IsSmiOrInteger32()) { 4033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 4034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HChange::cast(value())->value()->type().IsSmi()) { 4036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 4037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 4040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4041b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define H_CONSTANT_INT(val) \ 4044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::New(zone, context, static_cast<int32_t>(val)) 4045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define H_CONSTANT_DOUBLE(val) \ 4046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::New(zone, context, static_cast<double>(val)) 4047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HInstr, op) \ 4049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HInstr::New( \ 4050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* left, HValue* right) { \ 4051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 4052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); \ 4053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); \ 4054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 4055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double double_res = c_left->DoubleValue() op c_right->DoubleValue(); \ 4056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsInt32Double(double_res)) { \ 4057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(double_res); \ 4058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 4059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(double_res); \ 4060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 4061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 4062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HInstr(context, left, right); \ 4063b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4064b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4065b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HAdd, +) 4067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HMul, *) 4068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HSub, -) 4069257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR 4071257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HStringAdd::New(Zone* zone, 4074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context, 4075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left, 4076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right, 4077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PretenureFlag pretenure_flag, 4078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddFlags flags, 4079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<AllocationSite> allocation_site) { 4080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 4081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 4082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 4083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasStringValue() && c_right->HasStringValue()) { 4084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> left_string = c_left->StringValue(); 4085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> right_string = c_right->StringValue(); 4086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prevent possible exception by invalid string length. 4087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_string->length() + right_string->length() < String::kMaxLength) { 4088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MaybeHandle<String> concat = zone->isolate()->factory()->NewConsString( 4089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_left->StringValue(), c_right->StringValue()); 4090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::New(zone, context, concat.ToHandleChecked()); 4091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HStringAdd( 4095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch context, left, right, pretenure_flag, flags, allocation_site); 4096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4097b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4098b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HStringAdd::PrintDataTo(OStream& os) const { // NOLINT 4100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_BOTH) { 4101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckBoth"; 4102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_LEFT) { 4103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckLeft"; 4104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_RIGHT) { 4105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckRight"; 4106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::PrintDataTo(os); 4108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " ("; 4109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pretenure_flag() == NOT_TENURED) 4110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "N"; 4111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch else if (pretenure_flag() == TENURED) 4112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "D"; 4113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 4114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HStringCharFromCode::New( 4118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* char_code) { 4119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && char_code->IsConstant()) { 4120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_code = HConstant::cast(char_code); 4121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = zone->isolate(); 4122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_code->HasNumberValue()) { 4123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isfinite(c_code->DoubleValue())) { 4124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t code = c_code->NumberValueAsInteger32() & 0xffff; 4125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::New(zone, context, 4126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->factory()->LookupSingleCharacterStringFromCode(code)); 4127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::New(zone, context, isolate->factory()->empty_string()); 4129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HStringCharFromCode(context, char_code); 4132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HUnaryMathOperation::New( 4136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* value, BuiltinFunctionId op) { 4137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch do { 4138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_fold_constants) break; 4139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsConstant()) break; 4140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value); 4141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!constant->HasNumberValue()) break; 4142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d = constant->DoubleValue(); 4143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isnan(d)) { // NaN poisons everything. 4144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(base::OS::nan_value()); 4145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isinf(d)) { // +Infinity and -Infinity. 4147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 4148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 4149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0); 4150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 4151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 4152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : base::OS::nan_value()); 4153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 4154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 4155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d); 4156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 4157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 4158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 4159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(d); 4160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 4161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(32); 4162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 4163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 4164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 4168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 4169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(fast_exp(d)); 4170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 4171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(std::log(d)); 4172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 4173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(fast_sqrt(d)); 4174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 4175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(power_double_double(d, 0.5)); 4176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 4177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d); 4178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 4179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -0.5 .. -0.0 round to -0.0. 4180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0); 4181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Doubles are represented as Significant * 2 ^ Exponent. If the 4182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Exponent is not negative, the double value is already an integer. 4183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Double(d).Exponent() >= 0) return H_CONSTANT_DOUBLE(d); 4184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d + 0.5)); 4185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 4186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<double>(static_cast<float>(d))); 4187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 4188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d)); 4189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: { 4190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t i = DoubleToUint32(d); 4191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(base::bits::CountLeadingZeros32(i)); 4192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 4194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 4195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } while (false); 4198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HUnaryMathOperation(context, value, op); 4199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4201b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromUses() { 4203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op_ != kMathFloor && op_ != kMathRound) { 4204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::RepresentationFromUses(); 4205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The instruction can have an int32 or double output. Prefer a double 4208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation if there are double uses. 4209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool use_double = false; 4210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 4212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 4213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int use_index = it.index(); 4214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_observed = use->observed_input_representation(use_index); 4215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_required = use->RequiredInputRepresentation(use_index); 4216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use_double |= (rep_observed.IsDouble() || rep_required.IsDouble()); 4217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_double && !FLAG_trace_representation) { 4218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Having seen one double is enough. 4219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 4222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!rep_required.IsDouble() || rep_observed.IsDouble()) { 4223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 4224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 4225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_observed.Mnemonic(), 4226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 4227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is required by #%d %s as %s%s\n", 4229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 4230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_required.Mnemonic(), 4231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 4232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4234b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return use_double ? Representation::Double() : Representation::Integer32(); 4236b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4237b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4238b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HPower::New(Zone* zone, 4240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context, 4241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left, 4242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right) { 4243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 4244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 4245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 4246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 4247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double result = power_helper(c_left->DoubleValue(), 4248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_right->DoubleValue()); 4249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(std::isnan(result) ? base::OS::nan_value() 4250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : result); 4251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HPower(left, right); 42543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 42553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 42563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HMathMinMax::New( 4258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* left, HValue* right, Operation op) { 4259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 4260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 4261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 4262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 4263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_left = c_left->DoubleValue(); 4264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_right = c_right->DoubleValue(); 4265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == kMathMin) { 4266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_right); 4267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_left); 4268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 4269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 4270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_left 4271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_right); 4272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_right); 4275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_left); 4276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 4277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 4278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_right 4279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_left); 4280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // All comparisons failed, must be NaN. 4283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(base::OS::nan_value()); 4284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HMathMinMax(context, left, right, op); 4287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 42883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 42893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HMod::New(Zone* zone, 4291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context, 4292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left, 4293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right) { 4294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 42953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 42963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 42973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_left->HasInteger32Value() && c_right->HasInteger32Value()) { 42983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t dividend = c_left->Integer32Value(); 42993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t divisor = c_right->Integer32Value(); 4300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dividend == kMinInt && divisor == -1) { 4301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 4302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 43033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (divisor != 0) { 43043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t res = dividend % divisor; 43053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((res == 0) && (dividend < 0)) { 43063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 43073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(res); 43093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return new(zone) HMod(context, left, right); 43133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 43143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HDiv::New( 4317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* left, HValue* right) { 43183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If left and right are constant values, try to return a constant value. 4319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 43203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 43213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 43223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 43233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_right->DoubleValue() != 0) { 43243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double double_res = c_left->DoubleValue() / c_right->DoubleValue(); 4325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsInt32Double(double_res)) { 4326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(double_res); 43273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(double_res); 4329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int sign = Double(c_left->DoubleValue()).Sign() * 4331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Double(c_right->DoubleValue()).Sign(); // Right could be -0. 4332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(sign * V8_INFINITY); 43333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return new(zone) HDiv(context, left, right); 43373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 43383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HBitwise::New( 4341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, Token::Value op, HValue* left, HValue* right) { 4342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 43433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 43443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 43453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 43463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result; 43473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_left = c_left->NumberValueAsInteger32(); 43483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_right = c_right->NumberValueAsInteger32(); 43493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 43503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_XOR: 43513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left ^ v_right; 43523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 43533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_AND: 43543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left & v_right; 43553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 43563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_OR: 43573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left | v_right; 43583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 43593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 43603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = 0; // Please the compiler. 43613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 43623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(result); 43643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 43653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HBitwise(context, op, left, right); 43673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 43683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#define DEFINE_NEW_H_BITWISE_INSTR(HInstr, result) \ 4371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HInstr::New( \ 4372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* left, HValue* right) { \ 4373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 43743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); \ 43753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); \ 43763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 4377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(result); \ 43783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } \ 43793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } \ 43803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return new(zone) HInstr(context, left, right); \ 43813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 43823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43843ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HSar, 43853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() >> (c_right->NumberValueAsInteger32() & 0x1f)) 43863ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HShl, 43873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() << (c_right->NumberValueAsInteger32() & 0x1f)) 43883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef DEFINE_NEW_H_BITWISE_INSTR 43903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 43913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HShr::New( 4393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone, HValue* context, HValue* left, HValue* right) { 4394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 43953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 43963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 43973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 43983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t left_val = c_left->NumberValueAsInteger32(); 43993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t right_val = c_right->NumberValueAsInteger32() & 0x1f; 44003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((right_val == 0) && (left_val < 0)) { 4401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<uint32_t>(left_val)); 44023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(static_cast<uint32_t>(left_val) >> right_val); 44043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 44053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 44063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return new(zone) HShr(context, left, right); 44073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 44083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 44093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHInstruction* HSeqStringGetChar::New(Zone* zone, 4411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* context, 4412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding, 4413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* string, 4414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* index) { 4415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && string->IsConstant() && index->IsConstant()) { 4416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_string = HConstant::cast(string); 4417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_index = HConstant::cast(index); 4418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_string->HasStringValue() && c_index->HasInteger32Value()) { 4419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> s = c_string->StringValue(); 4420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t i = c_index->Integer32Value(); 4421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, i); 4422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(i, s->length()); 4423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(s->Get(i)); 4424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HSeqStringGetChar(encoding, string, index); 4427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef H_CONSTANT_INT 44313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef H_CONSTANT_DOUBLE 44323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 44333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& HBitwise::PrintDataTo(OStream& os) const { // NOLINT 4435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(op_) << " "; 4436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBitwiseBinaryOperation::PrintDataTo(os); 4437257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 4438257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4439257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::SimplifyConstantInputs() { 4441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert constant inputs to integers when all uses are truncating. 4442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This must happen before representation inference takes place. 4443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!CheckUsesForFlag(kTruncatingToInt32)) return; 44443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 4445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!OperandAt(i)->IsConstant()) return; 4446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HGraph* graph = block()->graph(); 4448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 4449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* operand = HConstant::cast(OperandAt(i)); 4450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand->HasInteger32Value()) { 44513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch continue; 4452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasDoubleValue()) { 4453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* integer_input = 4454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::New(graph->zone(), graph->GetInvalidContext(), 4455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleToInt32(operand->DoubleValue())); 4456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch integer_input->InsertAfter(operand); 4457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, integer_input); 4458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasBooleanValue()) { 4459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, operand->BooleanValue() ? graph->GetConstant1() 4460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : graph->GetConstant0()); 4461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->ImmortalImmovable()) { 4462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, graph->GetConstant0()); 44633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Overwrite observed input representations because they are likely Tagged. 4466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 4467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 4468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use->IsBinaryOperation()) { 4469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::cast(use)->set_observed_input_representation( 4470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.index(), Representation::Smi()); 44713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 44723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 44743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 44753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::InferRepresentation(HInferRepresentationPhase* h_infer) { 4477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 4478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 4479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 4480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 4481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 4482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUseRequirements(); 4483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "use requirements"); 4484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 44853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HPhi::RepresentationFromInputs() { 4488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = Representation::None(); 4489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 4490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = r.generalize(OperandAt(i)->KnownOptimalRepresentation()); 4491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return r; 4493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns a representation if all uses agree on the same representation. 4497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Integer32 is also returned when some uses are Smi but others are Integer32. 4498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUseRequirements() { 4499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 4500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 4501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ignore the use requirement from never run code 4502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->block()->IsUnreachable()) continue; 4503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 4505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 4506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 4507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone()) { 4508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = use_rep; 4509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 4510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_rep.IsNone() || rep.Equals(use_rep)) continue; 4512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.generalize(use_rep).IsInteger32()) { 4513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Integer32(); 4514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 4515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 4517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 4519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasNonSmiUse() { 4523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 4524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 4525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 4526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 4527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use_rep.IsNone() && 4528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsSmi() && 4529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsTagged()) { 4530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 4531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 45343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 45353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 45363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4537b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Node-specific verification code is only included in debug mode. 4538b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 4539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 45401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HPhi::Verify() { 4541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(OperandCount() == block()->predecessors()->length()); 4542b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 4543b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* value = OperandAt(i); 4544b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* defining_block = value->block(); 4545b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* predecessor_block = block()->predecessors()->at(i); 4546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(defining_block == predecessor_block || 4547b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch defining_block->Dominates(predecessor_block)); 4548b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4550b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4551b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 45521e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HSimulate::Verify() { 4553b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 4554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasAstId() || next()->IsEnterInlined()); 4555b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4556b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckHeapObject::Verify() { 4559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 4560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 4561b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckValue::Verify() { 4565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 4566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 4567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4568b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 4570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForFixedArrayHeader(int offset) { 4573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 4574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset < FixedArray::kHeaderSize); 4575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == FixedArray::kLengthOffset) return ForFixedArrayLength(); 4576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 4577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4578b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForMapAndOffset(Handle<Map> map, int offset, 4581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 4582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 4583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 4584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 4586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 4587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 4588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 4589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool existing_inobject_property = true; 4591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!map.is_null()) { 4592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch existing_inobject_property = (offset < 4593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch map->instance_size() - map->unused_property_fields() * kPointerSize); 4594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, representation, Handle<String>::null(), 4596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, existing_inobject_property); 4597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForAllocationSiteOffset(int offset) { 4601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (offset) { 4602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kTransitionInfoOffset: 4603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 4604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kNestedSiteOffset: 4605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 4606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureDataOffset: 4607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 4608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureCreateCountOffset: 4609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 4610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kDependentCodeOffset: 4611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 4612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kWeakNextOffset: 4613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 4614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 4615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 4616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 4618b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4619b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForContextSlot(int index) { 4622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index >= 0); 4623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 4624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = Context::kHeaderSize + index * kPointerSize; 4625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(offset, Context::SlotOffset(index) + kHeapObjectTag); 4626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, Representation::Tagged()); 4627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForJSArrayOffset(int offset) { 4631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 4632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 4633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 4635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 4636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSArray::kLengthOffset) { 4637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kArrayLengths; 4638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 4639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 4640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset); 4642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForBackingStoreOffset(int offset, 4646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 4647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 4648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, 4649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String>::null(), false, false); 4650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForField(Handle<Map> map, int index, 4654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation, 4655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> name) { 4656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index < 0) { 4657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Negative property indices are in-object properties, indexed 4658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // from the end of the fixed part of the object. 4659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + map->instance_size(); 4660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, representation, name, false, true); 4661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Non-negative property indices are in the properties array. 4663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + FixedArray::kHeaderSize; 4664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, name, 4665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, false); 4666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForCellPayload(Isolate* isolate) { 4671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, Cell::kValueOffset, Representation::Tagged(), 4672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->factory()->cell_value_string()); 4673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HObjectAccess::SetGVNFlags(HValue *instr, PropertyAccessType access_type) { 4677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // set the appropriate GVN flags for a given load or store instruction 4678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // track dominating allocations in order to eliminate write barriers 4680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kNewSpacePromotion); 4681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kTrackSideEffectDominators); 4682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // try to GVN loads, but don't hoist above map changes 4684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kUseGVN); 4685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 4686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (portion()) { 4689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kArrayLengths: 4690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kArrayLengths); 4692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kArrayLengths); 4694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kStringLengths: 4697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kStringLengths); 4699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kStringLengths); 4701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kInobject: 4704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kInobjectFields); 4706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kInobjectFields); 4708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kDouble: 4711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kDoubleFields); 4713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kDoubleFields); 4715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kBackingStore: 4718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kBackingStoreFields); 4720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kBackingStoreFields); 4722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kElementsPointer: 4725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kElementsPointer); 4727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kElementsPointer); 4729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMaps: 4732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kMaps); 4734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 4736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kExternalMemory: 4739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kExternalMemory); 4741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kExternalMemory); 4743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochOStream& operator<<(OStream& os, const HObjectAccess& access) { 4750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "."; 4751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (access.portion()) { 4753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kArrayLengths: 4754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kStringLengths: 4755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%length"; 4756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kElementsPointer: 4758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%elements"; 4759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kMaps: 4761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%map"; 4762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kDouble: // fall through 4764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kInobject: 4765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!access.name().is_null()) { 4766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[in-object]"; 4769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kBackingStore: 4771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!access.name().is_null()) { 4772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[backing-store]"; 4775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kExternalMemory: 4777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[external-memory]"; 4778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "@" << access.offset(); 4782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4783b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4784b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} } // namespace v8::internal 4785