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 5014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/hydrogen-instructions.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/base/bits.h" 813e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch#include "src/base/ieee754.h" 9014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/base/safe_math.h" 10c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch#include "src/codegen.h" 11014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/hydrogen-infer-representation.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/double.h" 13014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/elements.h" 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/factory.h" 1562ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch#include "src/objects-inl.h" 16b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#if V8_TARGET_ARCH_IA32 18014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ia32/lithium-ia32.h" // NOLINT 19b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_X64 20014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x64/lithium-x64.h" // NOLINT 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_ARM64 22014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm64/lithium-arm64.h" // NOLINT 23b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_ARM 24014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm/lithium-arm.h" // NOLINT 25014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#elif V8_TARGET_ARCH_PPC 26014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ppc/lithium-ppc.h" // NOLINT 2744f0eee88ff00398ff7f715fab053374d808c90dSteve Block#elif V8_TARGET_ARCH_MIPS 28014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips/lithium-mips.h" // NOLINT 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_MIPS64 30014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips64/lithium-mips64.h" // NOLINT 313b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#elif V8_TARGET_ARCH_S390 323b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#include "src/crankshaft/s390/lithium-s390.h" // NOLINT 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_X87 34014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x87/lithium-x87.h" // NOLINT 35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#else 36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#error Unsupported target architecture. 37b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 39b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 40b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 41b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#define DEFINE_COMPILE(type) \ 43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ 44b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return builder->Do##type(this); \ 45b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 46b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochHYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) 47b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef DEFINE_COMPILE 48b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 49c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen MurdochRepresentation RepresentationFromMachineType(MachineType type) { 50c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::Int32()) { 51c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Integer32(); 52c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 53c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 54c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::TaggedSigned()) { 55c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Smi(); 56c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 57c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 58c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::Pointer()) { 59c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::External(); 60c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 61c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 62c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Tagged(); 63c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch} 64b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochIsolate* HValue::isolate() const { 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->isolate(); 683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 71257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::AssumeRepresentation(Representation r) { 72257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (CheckFlag(kFlexibleRepresentation)) { 73257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ChangeRepresentation(r); 74257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The representation of the value is dictated by type feedback and 75257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // will not be changed later. 76257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ClearFlag(kFlexibleRepresentation); 77257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 78b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 79b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 80b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::InferRepresentation(HInferRepresentationPhase* h_infer) { 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUses() { 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return Representation::None(); 96014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation result = Representation::None(); 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = use->observed_input_representation(it.index()); 101014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize(rep); 102014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 109014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsPhi()) { 110014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize( 111014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HPhi::cast(this)->representation_from_indirect_uses()); 112014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 114014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // External representations are dealt with separately. 115014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return result.IsExternal() ? Representation::None() : result; 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::UpdateRepresentation(Representation new_rep, 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer, 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* reason) { 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_rep.is_more_general_than(r)) { 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCannotBeTagged) && new_rep.IsTagged()) return; 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Changing #%d %s representation %s -> %s based on %s\n", 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), r.Mnemonic(), new_rep.Mnemonic(), reason); 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(new_rep); 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDependantsToWorklist(h_infer); 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::AddDependantsToWorklist(HInferRepresentationPhase* h_infer) { 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(it.value()); 138b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(OperandAt(i)); 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t ConvertAndSetOverflow(Representation r, 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t result, 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > Smi::kMaxValue) { 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMaxValue; 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < Smi::kMinValue) { 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMinValue; 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > kMaxInt) { 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMaxInt; 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < kMinInt) { 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMinInt; 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 167b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return static_cast<int32_t>(result); 168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 169b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AddWithoutOverflow(Representation r, 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 175b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) + static_cast<int64_t>(b); 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 177b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 178b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 179b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t SubWithoutOverflow(Representation r, 181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) - static_cast<int64_t>(b); 185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t MulWithoutOverflow(const Representation& r, 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 193b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) * static_cast<int64_t>(b); 194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 195b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 196b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 197b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochint32_t Range::Mask() const { 199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ == upper_) return lower_; 200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ >= 0) { 201b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t res = 1; 202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (res < upper_) { 203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch res = (res << 1) | 1; 204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return 0xffffffff; 208b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 209b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 211b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::AddConstant(int32_t value) { 212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (value == 0) return; 213b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; // Overflow is ignored here. 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = Representation::Integer32(); 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, value, &may_overflow); 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, value, &may_overflow); 2173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 218b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 220b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 221b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 222b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 223e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Intersect(Range* other) { 224e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Min(upper_, other->upper_); 225e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Max(lower_, other->lower_); 226e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() && other->CanBeMinusZero(); 227e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 228e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 229e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 230e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 231e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Union(Range* other) { 232e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Max(upper_, other->upper_); 233e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Min(lower_, other->lower_); 234e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() || other->CanBeMinusZero(); 235e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 236e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 237e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 238e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMax(Range* other) { 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Max(upper_, other->upper_); 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Max(lower_, other->lower_); 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMin(Range* other) { 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Min(upper_, other->upper_); 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Min(lower_, other->lower_); 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 253e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Sar(int32_t value) { 254e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 255e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ >> bits; 256e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ >> bits; 257e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 258e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 259e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 260e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 261e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Shl(int32_t value) { 262e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 263e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_lower = lower_; 264e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_upper = upper_; 265e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ << bits; 266e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ << bits; 267e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (old_lower != lower_ >> bits || old_upper != upper_ >> bits) { 268e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = kMaxInt; 269e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = kMinInt; 270e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 271e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 272e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 273e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 274e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::AddAndCheckOverflow(const Representation& r, Range* other) { 276b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, other->lower(), &may_overflow); 278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, other->upper(), &may_overflow); 279f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 280f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 281f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 282f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch KeepOrder(); 283f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 287b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 288b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 290b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::SubAndCheckOverflow(const Representation& r, Range* other) { 292b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = SubWithoutOverflow(r, lower_, other->upper(), &may_overflow); 294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = SubWithoutOverflow(r, upper_, other->lower(), &may_overflow); 295f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 296f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 297f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 298f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch KeepOrder(); 299f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 301b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 303b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 305b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 306f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdochvoid Range::Clear() { 307f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch lower_ = kMinInt; 308f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch upper_ = kMaxInt; 309f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch} 310b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 311b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::KeepOrder() { 312b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ > upper_) { 313b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t tmp = lower_; 314b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = upper_; 315b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = tmp; 316b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 317b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 318b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 319b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 321b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::Verify() const { 322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(lower_ <= upper_); 323b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 325b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 326b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::MulAndCheckOverflow(const Representation& r, Range* other) { 328b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v1 = MulWithoutOverflow(r, lower_, other->lower(), &may_overflow); 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v2 = MulWithoutOverflow(r, lower_, other->upper(), &may_overflow); 331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v3 = MulWithoutOverflow(r, upper_, other->lower(), &may_overflow); 332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v4 = MulWithoutOverflow(r, upper_, other->upper(), &may_overflow); 333f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 334f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 335f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 336f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch lower_ = Min(Min(v1, v2), Min(v3, v4)); 337f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch upper_ = Max(Max(v1, v2), Max(v3, v4)); 338f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 340b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 342b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 343b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 344b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 345b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 346257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochbool HValue::IsDefinedAfter(HBasicBlock* other) const { 347257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return block()->block_id() > other->block_id(); 348257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 349257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 350257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3513ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHUseListNode* HUseListNode::tail() { 3523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Skip and remove dead items in the use list. 3533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (tail_ != NULL && tail_->value()->CheckFlag(HValue::kIsDead)) { 3543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch tail_ = tail_->tail_; 3553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return tail_; 3573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f) const { 3613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 3633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!it.value()->CheckFlag(f)) return false; 3643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return true; 3663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f, HValue** value) const { 370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) { 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *value = it.value(); 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasAtLeastOneUseWithFlagAndNoneWithout(Flag f) const { 382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool return_value = false; 383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) return false; 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_value = true; 387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return return_value; 389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 392257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseIterator::HUseIterator(HUseListNode* head) : next_(head) { 393257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Advance(); 394257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 395257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 396257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 397257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HUseIterator::Advance() { 398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current_ = next_; 399257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current_ != NULL) { 400257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch next_ = current_->tail(); 401257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value_ = current_->value(); 402257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch index_ = current_->index(); 403b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 404b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 405b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 406b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 407257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochint HValue::UseCount() const { 408257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int count = 0; 409257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) ++count; 410257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return count; 411b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 412b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 413b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 414257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseListNode* HValue::RemoveUse(HValue* value, int index) { 415257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* previous = NULL; 416257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* current = use_list_; 417257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (current != NULL) { 418257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current->value() == value && current->index() == index) { 419257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (previous == NULL) { 420257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = current->tail(); 421257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 422257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous->set_tail(current->tail()); 423257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 424257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch break; 425b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 426257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 427257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous = current; 428257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = current->tail(); 429b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 430257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 431257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#ifdef DEBUG 432257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Do not reuse use list nodes in debug mode, zap them. 433257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current != NULL) { 434257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* temp = 435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(block()->zone()) 436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUseListNode(current->value(), current->index(), NULL); 437257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current->Zap(); 438257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = temp; 439257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 440257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#endif 441257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return current; 442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 445e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HValue::Equals(HValue* other) { 446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (other->opcode() != opcode()) return false; 447b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->representation().Equals(representation())) return false; 448b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->type_.Equals(type_)) return false; 4491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (other->flags() != flags()) return false; 450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandCount() != other->OperandCount()) return false; 451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandAt(i)->id() != other->OperandAt(i)->id()) return false; 453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = DataEquals(other); 455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result || Hashcode() == other->Hashcode()); 456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 460e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochintptr_t HValue::Hashcode() { 461b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch intptr_t result = opcode(); 462b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < count; ++i) { 464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result = result * 19 + OperandAt(i)->id() + (result >> 7); 465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 466b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 467b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 468b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 469b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 470257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochconst char* HValue::Mnemonic() const { 471257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (opcode()) { 472257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#define MAKE_CASE(type) case k##type: return #type; 473257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE) 474257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef MAKE_CASE 475257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case kPhi: return "Phi"; 476257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: return ""; 477257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 478257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 479257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 480257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CanReplaceWithDummyUses() { 482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FLAG_unreachable_code_elimination && 483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(block()->IsReachable() || 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsBlockEntry() || 485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsControlInstruction() || 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsArgumentsObject() || 487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsCapturedObject() || 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSimulate() || 489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsEnterInlined() || 490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsLeaveInlined()); 491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::IsInteger32Constant() { 495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsConstant() && HConstant::cast(this)->HasInteger32Value(); 496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t HValue::GetInteger32Constant() { 500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::cast(this)->Integer32Value(); 501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::EqualsInteger32Constant(int32_t value) { 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsInteger32Constant() && GetInteger32Constant() == value; 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::SetOperandAt(int index, HValue* value) { 510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RegisterUse(index, value); 511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InternalSetOperandAt(index, value); 512b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 513b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 514b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 515257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::DeleteAndReplaceWith(HValue* other) { 516257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We replace all uses first, so Delete can assert that there are none. 517257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (other != NULL) ReplaceAllUsesWith(other); 5183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Kill(); 519257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DeleteFromGraph(); 520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 522b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 523257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::ReplaceAllUsesWith(HValue* other) { 524257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (use_list_ != NULL) { 525257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* list_node = use_list_; 526257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = list_node->value(); 527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->block()->IsStartBlock()); 528257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value->InternalSetOperandAt(list_node->index(), other); 529257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = list_node->tail(); 530257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch list_node->set_tail(other->use_list_); 531257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch other->use_list_ = list_node; 532b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 533b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 534b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 535b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::Kill() { 5373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Instead of going through the entire use list of each operand, we only 5383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // check the first item in each use list and rely on the tail() method to 5393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // skip dead items, removing them lazily next time we traverse the list. 5403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetFlag(kIsDead); 541b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 5423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HValue* operand = OperandAt(i); 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand == NULL) continue; 5443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HUseListNode* first = operand->use_list_; 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (first != NULL && first->value()->CheckFlag(kIsDead)) { 5463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch operand->use_list_ = first->tail(); 5473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 548b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 550b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 551b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 552257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::SetBlock(HBasicBlock* block) { 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block_ == NULL || block == NULL); 554257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch block_ = block; 555257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (id_ == kNoNumber && block != NULL) { 556257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch id_ = block->graph()->GetNextValueID(this); 557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 560b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 561958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HValue& v) { 562958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return v.PrintTo(os); 563958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 566958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const TypeOf& t) { 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (t.value->representation().IsTagged() && 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !t.value->type().Equals(HType::Tagged())) 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << " type:" << t.value->type(); 571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 573b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 574958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const ChangesOf& c) { 575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVNFlagSet changes_flags = c.value->ChangesFlags(); 576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.IsEmpty()) return os; 577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " changes["; 578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags == c.value->AllSideEffectsFlagSet()) { 579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "*"; 580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool add_comma = false; 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define PRINT_DO(Type) \ 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.Contains(k##Type)) { \ 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (add_comma) os << ","; \ 585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add_comma = true; \ 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << #Type; \ 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_TRACKED_FLAG_LIST(PRINT_DO); 589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_UNTRACKED_FLAG_LIST(PRINT_DO); 590257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef PRINT_DO 591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "]"; 593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasMonomorphicJSObjectType() { 597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !GetMonomorphicJSObjectMap().is_null(); 598b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 599b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 600b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 601b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HValue::UpdateInferredType() { 602b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HType type = CalculateInferredType(); 603b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = (!type.Equals(type_)); 604b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch type_ = type; 605b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 606b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 607b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RegisterUse(int index, HValue* new_value) { 610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* old_value = OperandAt(index); 611b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (old_value == new_value) return; 612257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 613257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* removed = NULL; 614257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (old_value != NULL) { 615257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed = old_value->RemoveUse(this, index); 616257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 617257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 618b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (new_value != NULL) { 619257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (removed == NULL) { 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_value->use_list_ = new(new_value->block()->zone()) HUseListNode( 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, index, new_value->use_list_); 622257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 623257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed->set_tail(new_value->use_list_); 624257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch new_value->use_list_ = removed; 625257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 626b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::AddNewRange(Range* r, Zone* zone) { 6313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) ComputeInitialRange(zone); 6323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) range_ = new(zone) Range(); 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch r->StackUpon(range_); 635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = r; 636b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RemoveLastAddedRange() { 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(range_->next() != NULL); 642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = range_->next(); 643b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::ComputeInitialRange(Zone* zone) { 647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!HasRange()); 6483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch range_ = InferRange(zone); 649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 653958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintTo(std::ostream& os) const { // NOLINT 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Mnemonic() << " "; 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintDataTo(os) << ChangesOf(this) << TypeOf(this); 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kHasNoObservableSideEffects)) os << " [noOSE]"; 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kIsDead)) os << " [dead]"; 658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 659257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 661b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 662958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintDataTo(std::ostream& os) const { // NOLINT 663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << " "; 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)); 666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::Unlink() { 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); // Must never move control instructions. 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsBlockEntry()); // Doesn't make sense to delete these. 675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(previous_ != NULL); 676e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch previous_->next_ = next_; 677e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (next_ == NULL) { 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block()->last() == this); 679e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch block()->set_last(previous_); 680e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 681e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch next_->previous_ = previous_; 682e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch clear_block(); 684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 685b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 686b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 687b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertBefore(HInstruction* next) { 688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->IsBlockEntry()); 690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); 691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->block()->IsStartBlock()); 692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->previous_ != NULL); 693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* prev = next->previous(); 694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch prev->next_ = this; 695b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next->previous_ = this; 696b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = prev; 698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(next->block()); 699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && next->has_position()) { 700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(next->position()); 701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 702b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 704b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 705b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertAfter(HInstruction* previous) { 706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!previous->IsControlInstruction()); 708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction() || previous->next_ == NULL); 709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* block = previous->block(); 710b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Never insert anything except constants into the start block after finishing 711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // it. 712b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block->IsStartBlock() && block->IsFinished() && !IsConstant()) { 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block->end()->SecondSuccessor() == NULL); 714b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InsertAfter(block->end()->FirstSuccessor()->first()); 715b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 717b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // If we're inserting after an instruction with side-effects that is 719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // followed by a simulate instruction, we need to insert after the 720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // simulate instruction instead. 721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* next = previous->next_; 7223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (previous->HasObservableSideEffects() && next != NULL) { 723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->IsSimulate()); 724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous = next; 725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next = previous->next_; 726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = previous; 729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(block); 731b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous->next_ = this; 732b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (next != NULL) next->previous_ = this; 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block->last() == previous) { 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block->set_last(this); 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && previous->has_position()) { 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(previous->position()); 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::Dominates(HInstruction* other) { 743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block() != other->block()) { 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->Dominates(other->block()); 745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Both instructions are in the same basic block. This instruction 747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // should precede the other one in order to dominate it. 748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HInstruction* instr = next(); instr != NULL; instr = instr->next()) { 749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr == other) { 750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 757b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 7581e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HInstruction::Verify() { 759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that input operands are defined before use. 760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* cur_block = block(); 761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 762b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* other_operand = OperandAt(i); 763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (other_operand == NULL) continue; 764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* other_block = other_operand->block(); 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur_block == other_block) { 766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other_operand->IsPhi()) { 7673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HInstruction* cur = this->previous(); 768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (cur != NULL) { 769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur == other_operand) break; 7703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch cur = cur->previous(); 771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Must reach other operand in the same block! 773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(cur == other_operand); 774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 776257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the following assert fires, you may have forgotten an 777257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // AddInstruction. 778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(other_block->Dominates(cur_block)); 779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 782b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that instructions that may have side-effects are followed 783b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // by a simulate instruction. 7843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasObservableSideEffects() && !IsOsrEntry()) { 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next()->IsSimulate()); 786b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 7871e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 7881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Verify that instructions that can be eliminated by GVN have overridden 7891e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // HValue::DataEquals. The default implementation is UNREACHABLE. We 7901e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // don't actually care whether DataEquals returns true or false here. 7911e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (CheckFlag(kUseGVN)) DataEquals(this); 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify that all uses are in the graph. 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator use = uses(); !use.Done(); use.Advance()) { 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use.value()->IsInstruction()) { 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HInstruction::cast(use.value())->IsLinked()); 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 802b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::CanDeoptimize() { 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (opcode()) { 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAbnormalExit: 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAccessArgumentsAt: 807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAllocate: 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsElements: 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsLength: 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsObject: 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBlockEntry: 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallNewArray: 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCapturedObject: 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClassOfTestAndBranch: 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareGeneric: 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareHoleAndBranch: 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareMap: 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareNumericAndBranch: 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareObjectEqAndBranch: 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstant: 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kContext: 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDebugBreak: 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeclareGlobals: 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDummyUse: 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnterInlined: 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnvironmentMarker: 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForceRepresentation: 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGoto: 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasInstanceTypeAndBranch: 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInnerAllocatedObject: 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsSmiAndBranch: 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsStringAndBranch: 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsUndetectableAndBranch: 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLeaveInlined: 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFieldByIndex: 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedField: 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadRoot: 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathMinMax: 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kParameter: 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPhi: 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPushArguments: 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kReturn: 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringGetChar: 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreCodeEntry: 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyed: 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedField: 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharCodeAt: 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharFromCode: 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kThisFunction: 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeofIsAndBranch: 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnknownOSRValue: 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUseConst: 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAdd: 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kApplyArguments: 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBitwise: 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBoundsCheck: 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBranch: 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallRuntime: 861958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier case HValue::kCallWithDescriptor: 862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kChange: 863014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kCheckArrayBufferNotNeutered: 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckHeapObject: 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckInstanceType: 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMapValue: 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMaps: 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckSmi: 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckValue: 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClampToUint8: 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeoptimize: 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDiv: 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInCacheArray: 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInPrepareMap: 875014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kHasInPrototypeChainAndBranch: 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInvokeFunction: 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadContextSlot: 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFunctionPrototype: 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyed: 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathFloorOfDiv: 881014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kMaybeGrowElements: 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMod: 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMul: 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kOsrEntry: 885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPower: 886014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kPrologue: 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kRor: 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSar: 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringSetChar: 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShl: 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShr: 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSimulate: 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStackCheck: 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreContextSlot: 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringAdd: 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCompareAndBranch: 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSub: 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTransitionElementsKind: 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTrapAllocationMemento: 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeof: 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnaryMathOperation: 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kWrapReceiver: 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 910958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const NameOf& v) { 911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << v.value->representation().Mnemonic() << v.value->id(); 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 914958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HDummyUse::PrintDataTo(std::ostream& os) const { // NOLINT 915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 919958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnvironmentMarker::PrintDataTo( 920958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << (kind() == BIND ? "bind" : "lookup") << " var[" << index() 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 926958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " #" << argument_count(); 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 931958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(first()) << " " << NameOf(second()) << " #" 933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << argument_count(); 93469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 93569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 9363b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintTo(std::ostream& os) const { // NOLINT 9373b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (tail_call_mode() == TailCallMode::kAllow) os << "Tail"; 9383b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return HBinaryCall::PrintTo(os); 939014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 940014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 9413b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintDataTo(std::ostream& os) const { // NOLINT 9423b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch HBinaryCall::PrintDataTo(os); 9433b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 9443b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 9463b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 949958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBoundsCheck::PrintDataTo(std::ostream& os) const { // NOLINT 950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()) << " " << NameOf(length()); 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != NULL && (offset() != 0 || scale() != 0)) { 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " base: (("; 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != index()) { 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()); 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "index"; 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " + " << offset() << ") >> " << scale() << ")"; 959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip_check()) os << " [DISABLED]"; 961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBoundsCheck::InferRepresentation(HInferRepresentationPhase* h_infer) { 966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_index = index()->ActualValue(); 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_length = length()->ActualValue(); 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation index_rep = actual_index->representation(); 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation length_rep = actual_length->representation(); 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index_rep.IsTagged() && actual_index->type().IsSmi()) { 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_rep = Representation::Smi(); 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_rep.IsTagged() && actual_length->type().IsSmi()) { 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_rep = Representation::Smi(); 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = index_rep.generalize(length_rep); 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.is_more_general_than(Representation::Integer32())) { 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(r, h_infer, "boundscheck"); 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HBoundsCheck::InferRange(Zone* zone) { 986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && length()->HasRange()) { 988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = length()->range()->upper() - (allow_equality() ? 0 : 1); 989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = 0; 990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(lower, upper); 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index()->HasRange()) { 993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->Intersect(index()->range()); 994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp result to Smi::kMaxValue. 997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1004958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallWithDescriptor::PrintDataTo( 1005958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); i++) { 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)) << " "; 1008b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 10093b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << "#" << argument_count(); 10103b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 10113b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 10123b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 10133b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 1014b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1015b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1016b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1017958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallNewArray::PrintDataTo(std::ostream& os) const { // NOLINT 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << ElementsKindToString(elements_kind()) << " "; 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryCall::PrintDataTo(os); 1020b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1021b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1022b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1023958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallRuntime::PrintDataTo(std::ostream& os) const { // NOLINT 1024014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch os << function()->name << " "; 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (save_doubles() == kSaveFPRegs) os << "[save doubles] "; 1026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "#" << argument_count(); 1027b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1028b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1029b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1030958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HClassOfTestAndBranch::PrintDataTo( 1031958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "class_of_test(" << NameOf(value()) << ", \"" 1033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << class_name()->ToCString().get() << "\")"; 1034b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1035b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1036b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1037958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HWrapReceiver::PrintDataTo(std::ostream& os) const { // NOLINT 1038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(receiver()) << " " << NameOf(function()); 1039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1041b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1042958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAccessArgumentsAt::PrintDataTo( 1043958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(arguments()) << "[" << NameOf(index()) << "], length " 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(length()); 1046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1048b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1049958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HControlInstruction::PrintDataTo( 1050958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " goto ("; 10523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool first_block = true; 10533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (HSuccessorIterator it(this); !it.Done(); it.Advance()) { 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!first_block) os << ", "; 1055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << *it.Current(); 10563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch first_block = false; 10571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1062958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryControlInstruction::PrintDataTo( 1063958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1069958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HReturn::PrintDataTo(std::ostream& os) const { // NOLINT 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " (pop " << NameOf(parameter_count()) 1071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << " values)"; 1072b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1073b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1074b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBranch::observed_input_representation(int index) { 107662ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch if (expected_input_types_ & 107762ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch (ToBooleanHint::kNull | ToBooleanHint::kReceiver | 107862ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch ToBooleanHint::kString | ToBooleanHint::kSymbol)) { 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1081c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kUndefined) { 1082c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kHeapNumber) { 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1087c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kHeapNumber) { 1088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1090c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kSmallInteger) { 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Smi(); 1092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 1094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1095b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBranch::KnownSuccessorBlock(HBasicBlock** block) { 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = this->value(); 1099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->EmitAtUses()) { 1100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(value->IsConstant()); 1101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->representation().IsDouble()); 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value)->BooleanValue() 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() 1104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : SecondSuccessor(); 1105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 11093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 11103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 11113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1112958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBranch::PrintDataTo(std::ostream& os) const { // NOLINT 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryControlInstruction::PrintDataTo(os) << " " 1114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << expected_input_types(); 11153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 11163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 11173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1118958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " (" << *map().handle() << ")"; 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HControlInstruction::PrintDataTo(os); 1121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() == 0) { 1122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [true]"; 1123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (known_successor_index() == 1) { 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [false]"; 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1127b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1128b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1129b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochconst char* HUnaryMathOperation::OpName() const { 1131b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op()) { 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 1133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "floor"; 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "fround"; 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "round"; 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "abs"; 114013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 114113e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "cos"; 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "log"; 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 1145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "exp"; 114613e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 114713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "sin"; 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "sqrt"; 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "pow-half"; 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "clz32"; 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 1156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 1157b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1158b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1160b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HUnaryMathOperation::InferRange(Zone* zone) { 1162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathClz32) return new(zone) Range(0, 32); 1164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && value()->HasRange()) { 1165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathAbs) { 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = value()->range()->upper(); 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = value()->range()->lower(); 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool spans_zero = value()->range()->CanBeZero(); 1169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Math.abs(kMinInt) overflows its representation, on which the 1170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction deopts. Hence clamp it to kMaxInt. 1171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_upper = upper == kMinInt ? kMaxInt : abs(upper); 1172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_lower = lower == kMinInt ? kMaxInt : abs(lower); 1173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = 1174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) Range(spans_zero ? 0 : Min(abs_lower, abs_upper), 1175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Max(abs_lower, abs_upper)); 1176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp Math.abs(Smi::kMinValue) to 1177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi::kMaxValue. 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 1179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1186958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryMathOperation::PrintDataTo( 1187958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << OpName() << " " << NameOf(value()); 1189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1190b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1192958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 1193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1197958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HHasInstanceTypeAndBranch::PrintDataTo( 1198958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (from_) { 12013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case FIRST_JS_RECEIVER_TYPE: 1202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == LAST_TYPE) os << " spec_object"; 1203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_REGEXP_TYPE: 1205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_REGEXP_TYPE) os << " reg_exp"; 1206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_ARRAY_TYPE: 1208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_ARRAY_TYPE) os << " array"; 1209b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_FUNCTION_TYPE: 1211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_FUNCTION_TYPE) os << " function"; 1212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1213b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1214b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1215b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1220958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeofIsAndBranch::PrintDataTo( 1221958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " == " << type_literal()->ToCString().get(); 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochnamespace { 1228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1229014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochString* TypeOfString(HConstant* constant, Isolate* isolate) { 1230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate->heap(); 1231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasNumberValue()) return heap->number_string(); 1232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasStringValue()) return heap->string_string(); 1233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant->GetInstanceType()) { 1234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case ODDBALL_TYPE: { 1235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> unique = constant->GetUnique(); 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->true_value()) || 1237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch unique.IsKnownGlobal(heap->false_value())) { 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->boolean_string(); 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->null_value())) { 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(unique.IsKnownGlobal(heap->undefined_value())); 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->undefined_string(); 1245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SYMBOL_TYPE: 1247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->symbol_string(); 1248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1249bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (constant->IsUndetectable()) return heap->undefined_string(); 1250014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (constant->IsCallable()) return heap->function_string(); 1251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1255014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace 1256014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HTypeofIsAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 1259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 1260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value()); 1261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* type_string = TypeOfString(constant, isolate()); 1262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool same_type = type_literal_.IsKnownGlobal(type_string); 1263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = same_type ? FirstSuccessor() : SecondSuccessor(); 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (value()->representation().IsSpecialization()) { 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool number_type = 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type_literal_.IsKnownGlobal(isolate()->heap()->number_string()); 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = number_type ? FirstSuccessor() : SecondSuccessor(); 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1273b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1274b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1275b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1276958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMapValue::PrintDataTo(std::ostream& os) const { // NOLINT 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << NameOf(map()); 12783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMapValue::Canonicalize() { 1282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map()->IsConstant()) { 1283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_map = HConstant::cast(map()); 1284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HCheckMaps::CreateAndInsertAfter( 1285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->zone(), value(), c_map->MapValue(), 1286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_map->HasStableMapValue(), this); 1287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1292958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInPrepareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()); 12943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1297958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInCacheArray::PrintDataTo(std::ostream& os) const { // NOLINT 1298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()) << " " << NameOf(map()) << "[" << idx_ 1299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 13003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1303958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadFieldByIndex::PrintDataTo( 1304958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << " " << NameOf(index()); 13063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchLeftIsOnes(HValue* l, HValue* r, HValue** negated) { 1310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!l->EqualsInteger32Constant(~0)) return false; 1311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *negated = r; 1312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 13133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchNegationViaXor(HValue* instr, HValue** negated) { 1317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsBitwise()) return false; 1318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBitwise* b = HBitwise::cast(instr); 1319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (b->op() == Token::BIT_XOR) && 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (MatchLeftIsOnes(b->left(), b->right(), negated) || 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchLeftIsOnes(b->right(), b->left(), negated)); 13223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchDoubleNegation(HValue* instr, HValue** arg) { 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* negated; 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MatchNegationViaXor(instr, &negated) && 1328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchNegationViaXor(negated, arg); 13293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13323ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HBitwise::Canonicalize() { 1333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsSmiOrInteger32()) return this; 13343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If x is an int32, then x & -1 == x, x | 0 == x and x ^ 0 == x. 13353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t nop_constant = (op() == Token::BIT_AND) ? -1 : 0; 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(nop_constant) && 1337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !right()->CheckFlag(kUint32)) { 13383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return right(); 13393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right()->EqualsInteger32Constant(nop_constant) && 1341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->CheckFlag(kUint32)) { 13423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return left(); 13433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimize double negation, a common pattern used for ToInt32(x). 1345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* arg; 1346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MatchDoubleNegation(this, &arg) && !arg->CheckFlag(kUint32)) { 1347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg; 1348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 13503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1353014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch// static 1354014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HAdd::New(Isolate* isolate, Zone* zone, HValue* context, 1355109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right, 1356014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ExternalAddType external_add_type) { 1357014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // For everything else, you should use the other factory method without 1358014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // ExternalAddType. 1359014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(external_add_type, AddOfExternalAndTagged); 1360109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HAdd(context, left, right, external_add_type); 1361014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 1362014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1363014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RepresentationFromInputs() { 1365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::External(); 1368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RepresentationFromInputs(); 1370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RequiredInputRepresentation(int index) { 1374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index == 2) { 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1377014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (external_add_type_ == AddOfExternalAndTagged) { 1378014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Tagged(); 1379014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 1380014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Integer32(); 1381014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RequiredInputRepresentation(index); 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsIdentityOperation(HValue* arg1, HValue* arg2, int32_t identity) { 1389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg1->representation().IsSpecialization() && 1390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch arg2->EqualsInteger32Constant(identity); 1391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 13943ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HAdd::Canonicalize() { 1395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adding 0 is an identity operation except in case of -0: -0 + 0 = +0 1396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0) && 1397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Left could be -0. 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return left(); 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 0) && 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Right could be -0. 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return right(); 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14083ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HSub::Canonicalize() { 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0)) return left(); 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMul::Canonicalize() { 1415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 1416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 1)) return right(); 1417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HMul::MulMinusOne() { 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(-1) || 1423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->EqualsInteger32Constant(-1)) { 1424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMod::Canonicalize() { 1432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HDiv::Canonicalize() { 1437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 14383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14423ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HChange::Canonicalize() { 14433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return (from().Equals(to())) ? value() : this; 14443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14473ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HWrapReceiver::Canonicalize() { 14483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasNoUses()) return NULL; 1449014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (receiver()->type().IsJSReceiver()) { 14503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return receiver(); 14513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1456958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeof::PrintDataTo(std::ostream& os) const { // NOLINT 1457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1461014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HForceRepresentation::New(Isolate* isolate, Zone* zone, 1462014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 1463014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation representation) { 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value->IsConstant()) { 1465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c = HConstant::cast(value); 1466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c = c->CopyToRepresentation(representation, zone); 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c != NULL) return c; 1468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HForceRepresentation(value, representation); 1470b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1471b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1472b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1473958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForceRepresentation::PrintDataTo( 1474958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << representation().Mnemonic() << " " << NameOf(value()); 1476589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 1477589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1478589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1479958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HChange::PrintDataTo(std::ostream& os) const { // NOLINT 1480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUnaryOperation::PrintDataTo(os); 1481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << from().Mnemonic() << " to " << to().Mnemonic(); 1482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToSmi()) os << " truncating-smi"; 1484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToInt32()) os << " truncating-int32"; 1485c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (CanTruncateToNumber()) os << " truncating-number"; 1486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HUnaryMathOperation::Canonicalize() { 1492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathRound || op() == kMathFloor) { 1493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* val = value(); 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->IsChange()) val = HChange::cast(val)->value(); 1495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().IsSmiOrInteger32()) { 1496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().Equals(representation())) return val; 1497c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Prepend(new (block()->zone()) 1498c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HChange(val, representation(), false, false, true)); 1499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15013b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (op() == kMathFloor && representation().IsSmiOrInteger32() && 15023b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->IsDiv() && value()->HasOneUse()) { 1503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = HDiv::cast(value()); 1504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left = hdiv->left(); 1506014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (left->representation().IsInteger32() && !left->CheckFlag(kUint32)) { 1507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1508014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (left->IsChange() && HChange::cast(left)->from().IsInteger32() && 1509014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(left)->value()->CheckFlag(kUint32)) { 1510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = HChange::cast(left)->value(); 1512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(1).IsSmiOrInteger32()) { 1513c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch left = Prepend(new (block()->zone()) HChange( 1514c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch left, Representation::Integer32(), false, false, true)); 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right = hdiv->right(); 1520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsInteger32Constant()) { 1521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(HConstant::cast(right)->CopyToRepresentation( 1522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), right->block()->zone())); 1523014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (right->representation().IsInteger32() && 1524014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !right->CheckFlag(kUint32)) { 1525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (right->IsChange() && 1527014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HChange::cast(right)->from().IsInteger32() && 1528014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(right)->value()->CheckFlag(kUint32)) { 1529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = HChange::cast(right)->value(); 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(2).IsSmiOrInteger32()) { 1532c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch right = Prepend(new (block()->zone()) HChange( 1533c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch right, Representation::Integer32(), false, false, true)); 1534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(HMathFloorOfDiv::New( 1539014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->zone(), context(), left, right)); 1540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckInstanceType::Canonicalize() { 1546014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if ((check_ == IS_JS_RECEIVER && value()->type().IsJSReceiver()) || 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) || 1548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_STRING && value()->type().IsString())) { 1549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_ == IS_INTERNALIZED_STRING && value()->IsConstant()) { 1553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HConstant::cast(value())->HasInternalizedStringValue()) { 1554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 15583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 15593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 15603fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1561257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckInterval(InstanceType* first, 1562257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType* last) { 1563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_interval_check()); 1564257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1565014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: 1566014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = FIRST_JS_RECEIVER_TYPE; 1567014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *last = LAST_JS_RECEIVER_TYPE; 1568257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1569257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_JS_ARRAY: 1570257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *first = *last = JS_ARRAY_TYPE; 1571257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 157213e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case IS_JS_FUNCTION: 157313e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch *first = *last = JS_FUNCTION_TYPE; 157413e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return; 1575014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1576014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = *last = JS_DATE_TYPE; 1577014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return; 1578257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1579257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 1582257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1583257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1584257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckMaskAndTag(uint8_t* mask, uint8_t* tag) { 1585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!is_interval_check()); 1586257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1587257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_STRING: 1588257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *mask = kIsNotStringMask; 1589257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *tag = kStringTag; 1590257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: 1592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *mask = kIsNotStringMask | kIsNotInternalizedMask; 1593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *tag = kInternalizedTag; 1594257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1595257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1596257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1597257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1598b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1599b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1600b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1601958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMaps::PrintDataTo(std::ostream& os) const { // NOLINT 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " [" << *maps()->at(0).handle(); 1603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 1604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 1605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 1607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsStabilityCheck()) os << "(stability-check)"; 1608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMaps::Canonicalize() { 1613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsStabilityCheck() && maps_are_stable() && value()->IsConstant()) { 1614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_value = HConstant::cast(value()); 1615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->HasObjectMap()) { 1616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps()->size(); ++i) { 1617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->ObjectMap() == maps()->at(i)) { 1618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps()->size() > 1) { 1619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_maps(new(block()->graph()->zone()) UniqueSet<Map>( 1620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch maps()->at(i), block()->graph()->zone())); 1621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkAsStabilityCheck(); 1623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 16273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1632958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckValue::PrintDataTo(std::ostream& os) const { // NOLINT 1633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << Brief(*object().handle()); 1634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1636b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckValue::Canonicalize() { 1638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (value()->IsConstant() && 1639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(value())->EqualsUnique(object_)) ? NULL : this; 1640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochconst char* HCheckInstanceType::GetCheckName() const { 16443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (check_) { 1645014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: return "object"; 16463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_JS_ARRAY: return "array"; 164713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case IS_JS_FUNCTION: 164813e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "function"; 1649014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1650014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return "date"; 16513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_STRING: return "string"; 1652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: return "internalized_string"; 16533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 16543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 16553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ""; 16563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 16573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1659958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckInstanceType::PrintDataTo( 1660958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << GetCheckName() << " "; 1662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryOperation::PrintDataTo(os); 1663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1666958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnknownOSRValue::PrintDataTo(std::ostream& os) const { // NOLINT 1667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* type = "expression"; 1668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_local_index(index_)) type = "local"; 1669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_special_index(index_)) type = "special"; 1670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_parameter_index(index_)) type = "parameter"; 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << type << " @ " << index_; 1672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16753ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HValue::InferRange(Zone* zone) { 1676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result; 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() || type().IsSmi()) { 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(Smi::kMinValue, Smi::kMaxValue); 1679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 1680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(); 1682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32)); 1683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(jkummerow): The range cannot be minus zero when the upper type 1684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // bound is Integer32. 1685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 168669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 168769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 168869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 168969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 16903ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HChange::InferRange(Zone* zone) { 169169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* input_range = value()->range(); 1692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsInteger32() && !value()->CheckFlag(HInstruction::kUint32) && 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsSmi() || 1694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsTagged() && 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange()))) { 169769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch set_type(HType::Smi()); 1698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearChangesFlag(kNewSpacePromotion); 1699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmiOrTagged() && 1701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange() && 1703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!SmiValuesAre32Bits() || 1704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !value()->CheckFlag(HValue::kUint32) || 1705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->upper() != kMaxInt)) { 1706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The Range class can't express upper bounds in the (kMaxInt, kMaxUint32] 1707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // interval, so we treat kMaxInt as a sentinel for this entire interval. 1708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 171069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (input_range != NULL) 17113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? input_range->Copy(zone) 17123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : HValue::InferRange(zone); 1713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!to().IsSmiOrInteger32() || 1714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(CheckFlag(kAllUsesTruncatingToInt32) || 1715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckFlag(kAllUsesTruncatingToSmi))); 1716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmi()) result->ClampToSmi(); 171769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 1718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17213ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HConstant::InferRange(Zone* zone) { 1722958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 17233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(int32_value_, int32_value_); 1724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result->set_can_be_minus_zero(false); 1725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 17273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1731014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochSourcePosition HPhi::position() const { return block()->first()->position(); } 1732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17343ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HPhi::InferRange(Zone* zone) { 1735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1737b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block()->IsLoopHeader()) { 1738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* range = r.IsSmi() 1739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? new(zone) Range(Smi::kMinValue, Smi::kMaxValue) 1740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : new(zone) Range(kMinInt, kMaxInt); 1741b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1742b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* range = OperandAt(0)->range()->Copy(zone); 1744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 1; i < OperandCount(); ++i) { 1745b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range->Union(OperandAt(i)->range()); 1746b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1751b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17553ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HAdd::InferRange(Zone* zone) { 1756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->AddAndCheckOverflow(r, b) || 1762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeMinusZero()); 1769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17763ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSub::InferRange(Zone* zone) { 1777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->SubAndCheckOverflow(r, b) || 1783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1786b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeZero()); 1790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1791b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1793b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1794b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17973ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMul::InferRange(Zone* zone) { 1798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 18023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->MulAndCheckOverflow(r, b) || 1804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (((r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) && 1806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MulMinusOne())) { 1807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Truncated int multiplication is too precise and therefore not the 1808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // same as converting to Double and back. 1809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle truncated integer multiplication by -1 special. 1810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ((a->CanBeZero() && b->CanBeNegative()) || 1815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeNegative() && b->CanBeZero()))); 1816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1817b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1819b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1820b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18233ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HDiv::InferRange(Zone* zone) { 1824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(); 1828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathFloorOfDiv::InferRange(Zone* zone) { 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsInteger32()) { 1847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 18493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(); 1850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt)) { 1854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kLeftCanBeMinInt); 1855b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1856b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1859b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1860b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBePositive()) { 1862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBePositive); 1863b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1864b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1871b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1872b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1873b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1875b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1876b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1877b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1878b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns the absolute value of its argument minus one, avoiding undefined 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// behavior at kMinInt. 1881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AbsMinus1(int32_t a) { return a < 0 ? -(a + 1) : (a - 1); } 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 18843ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMod::InferRange(Zone* zone) { 1885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1886b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The magnitude of the modulus is bounded by the right operand. 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t positive_bound = Max(AbsMinus1(b->lower()), AbsMinus1(b->upper())); 1891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The result of the modulo operation has the sign of its left operand. 1893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool left_can_be_negative = a->CanBeMinusZero() || a->CanBeNegative(); 1894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(left_can_be_negative ? -positive_bound : 0, 1895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBePositive() ? positive_bound : 0); 1896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_can_be_negative); 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kCanOverflow); 1906b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1909b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(HValue::kCanBeDivByZero); 1910b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1911b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1912b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 19133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1914b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1915b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1916b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1917b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathMinMax::InferRange(Zone* zone) { 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmiOrInteger32()) { 1920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* res = a->Copy(zone); 1923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation_ == kMathMax) { 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMax(b); 1925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(operation_ == kMathMin); 1927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMin(b); 1928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return res; 1930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPushArguments::AddInput(HValue* value) { 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(OperandCount() - 1, value); 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1942958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HPhi::PrintTo(std::ostream& os) const { // NOLINT 1943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "["; 1944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << NameOf(OperandAt(i)) << " "; 1946b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1947014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return os << " uses" << UseCount() 1948014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch << representation_from_indirect_uses().Mnemonic() << " " 1949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << TypeOf(this) << "]"; 1950b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1951b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1952b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1953b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddInput(HValue* value) { 1954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1955b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetOperandAt(OperandCount() - 1, value); 1956b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Mark phis that may have 'arguments' directly or indirectly as an operand. 1957b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!CheckFlag(kIsArguments) && value->CheckFlag(kIsArguments)) { 1958b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetFlag(kIsArguments); 1959b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1960b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1962b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 196344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockbool HPhi::HasRealUses() { 1964257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 1965257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!it.value()->IsPhi()) return true; 196644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 196744f0eee88ff00398ff7f715fab053374d808c90dSteve Block return false; 196844f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 196944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 197044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1971e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHValue* HPhi::GetRedundantReplacement() { 1972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* candidate = NULL; 1973b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 1974b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int position = 0; 1975b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count && candidate == NULL) { 1976b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1977b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this) candidate = current; 1978b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1979b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count) { 1980b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1981b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this && current != candidate) return NULL; 1982b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(candidate != this); 1984b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return candidate; 1985b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1986b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1988b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::DeleteFromGraph() { 1989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 1990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch block()->RemovePhi(this); 1991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() == NULL); 1992b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1993b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1994b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1995b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::InitRealUses(int phi_id) { 1996b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Initialize real uses. 1997b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch phi_id_ = phi_id; 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute a conservative approximation of truncating uses before inferring 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representations. The proper, exact computation will be done later, when 2000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inserting representation changes. 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToSmi); 2002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToInt32); 2003257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2004257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = it.value(); 2005257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!value->IsPhi()) { 2006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = value->observed_input_representation(it.index()); 2007014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses_ = 2008014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses().generalize(rep); 2009014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (rep.IsSmi() || rep.IsInteger32() || rep.IsDouble()) { 2010014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch has_type_feedback_from_uses_ = true; 2011014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2012014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d Phi is used by real #%d %s as %s\n", 2015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), value->id(), value->Mnemonic(), rep.Mnemonic()); 2016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsSimulate()) { 2018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToSmi)) { 2019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToSmi); 2020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToInt32)) { 2022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToInt32); 2023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2025b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2026b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2027b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2028b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2029b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2030b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddNonPhiUsesFrom(HPhi* other) { 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2032014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF( 2033014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "generalizing use representation '%s' of #%d Phi " 2034014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "with uses of #%d Phi '%s'\n", 2035014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().Mnemonic(), id(), other->id(), 2036014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses().Mnemonic()); 2037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2039014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses_ = 2040014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().generalize( 2041014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses()); 2042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2044b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::MergeWith(ZoneList<HSimulate*>* list) { 2046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!list->is_empty()) { 2047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSimulate* from = list->RemoveLast(); 2048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ZoneList<HValue*>* from_values = &from->values_; 2049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < from_values->length(); ++i) { 2050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from->HasAssignedIndexAt(i)) { 2051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = from->GetAssignedIndexAt(i); 2052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasValueForIndex(index)) continue; 2053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddAssignedValue(index, from_values->at(i)); 20543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) { 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_--; 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddPushedValue(from_values->at(i)); 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2060b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2061b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_ += from->pop_count_; 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch from->DeleteAndReplaceWith(NULL); 2064b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2065b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2066b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2067b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2068958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HSimulate::PrintDataTo(std::ostream& os) const { // NOLINT 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "id=" << ast_id().ToInt(); 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " pop " << pop_count_; 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (values_.length() > 0) { 2072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " /"; 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values_.length() - 1; i >= 0; --i) { 2074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " var[" << GetAssignedIndexAt(i) << "] = "; 2076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " push "; 2078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(values_[i]); 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << ","; 2081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 20823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 20843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 20853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 20863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::ReplayEnvironment(HEnvironment* env) { 2088958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (is_done_with_replay()) return; 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->set_ast_id(ast_id()); 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Drop(pop_count()); 2092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values()->length() - 1; i >= 0; --i) { 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values()->at(i); 2094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Bind(GetAssignedIndexAt(i), value); 2096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Push(value); 2098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2100958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier set_done_with_replay(); 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2102b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2103b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic void ReplayEnvironmentNested(const ZoneList<HValue*>* values, 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCapturedObject* other) { 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < values->length(); ++i) { 2107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values->at(i); 2108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->IsCapturedObject()) { 2109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HCapturedObject::cast(value)->capture_id() == other->capture_id()) { 2110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch values->at(i) = other; 2111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(HCapturedObject::cast(value)->values(), other); 2113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Replay captured objects by replacing all captured objects with the 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// same capture id in the current and all outer environments. 2121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCapturedObject::ReplayEnvironment(HEnvironment* env) { 2122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (env != NULL) { 2124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(env->values(), this); 2125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env = env->outer(); 2126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2130958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCapturedObject::PrintDataTo(std::ostream& os) const { // NOLINT 2131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "#" << capture_id() << " "; 2132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HDematerializedObject::PrintDataTo(os); 2133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HEnterInlined::RegisterReturnTarget(HBasicBlock* return_target, 2137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone) { 2138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(return_target->IsInlineReturnTarget()); 2139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_targets_.Add(return_target, zone); 2140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2143958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnterInlined::PrintDataTo(std::ostream& os) const { // NOLINT 21443b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << function()->debug_name()->ToCString().get(); 21453b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 21463b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 21473b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 21483b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 2149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsInteger32(double value) { 2153958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (value >= std::numeric_limits<int32_t>::min() && 2154958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier value <= std::numeric_limits<int32_t>::max()) { 2155958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double roundtrip_value = static_cast<double>(static_cast<int32_t>(value)); 2156958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return bit_cast<int64_t>(roundtrip_value) == bit_cast<int64_t>(value); 2157958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2158958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return false; 2159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2162014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHConstant::HConstant(Special special) 2163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : HTemplateInstruction<0>(HType::TaggedNumber()), 2164014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_(Handle<Object>::null()), 2165014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_map_(Handle<Map>::null()), 2166014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_(HasDoubleValueField::encode(true) | 2167014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)), 2168014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_value_(0) { 2169014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(kHoleNaN, special); 217062ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch // Manipulating the signaling NaN used for the hole in C++, e.g. with bit_cast 217162ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch // will change its value on ia32 (the x87 stack is used to return values 217262ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch // and stores to the stack silently clear the signalling bit). 217362ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch // Therefore we have to use memcpy for initializing |double_value_| with 217462ed631aa0ff23db68a47fd423efa9c019ff2c9eBen Murdoch // kHoleNanInt64 here. 2175014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch std::memcpy(&double_value_, &kHoleNanInt64, sizeof(double_value_)); 2176014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Initialize(Representation::Double()); 2177014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 2178014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2179014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(Handle<Object> object, Representation r) 2181958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::FromValue(object)), 2182958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>::CreateUninitialized(object)), 2183958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2184014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_( 2185014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasStableMapValueField::encode(false) | 2186014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2187014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasDoubleValueField::encode(false) | 2188014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasExternalReferenceValueField::encode(false) | 2189014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsNotInNewSpaceField::encode(true) | 2190014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BooleanValueField::encode(object->BooleanValue()) | 2191014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsUndetectableField::encode(false) | IsCallableField::encode(false) | 2192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)) { 2193f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (object->IsNumber()) { 2194f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double n = object->Number(); 2195f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bool has_int32_value = IsInteger32(n); 2196f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasInt32ValueField::update(bit_field_, has_int32_value); 2197f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch int32_value_ = DoubleToInt32(n); 2198f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasSmiValueField::update( 2199f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_, has_int32_value && Smi::IsValid(int32_value_)); 2200f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (std::isnan(n)) { 2201f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = std::numeric_limits<double>::quiet_NaN(); 2202f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Canonicalize object with NaN value. 2203f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch DCHECK(object->IsHeapObject()); // NaN can't be a Smi. 2204f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Isolate* isolate = HeapObject::cast(*object)->GetIsolate(); 2205f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object = isolate->factory()->nan_value(); 2206f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object_ = Unique<Object>::CreateUninitialized(object); 2207f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 2208f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = n; 2209f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Canonicalize object with -0.0 value. 2210f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (bit_cast<int64_t>(n) == bit_cast<int64_t>(-0.0)) { 2211f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch DCHECK(object->IsHeapObject()); // -0.0 can't be a Smi. 2212f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Isolate* isolate = HeapObject::cast(*object)->GetIsolate(); 2213f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object = isolate->factory()->minus_zero_value(); 2214f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object_ = Unique<Object>::CreateUninitialized(object); 2215f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2216f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2217f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasDoubleValueField::update(bit_field_, true); 2218f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsHeapObject()) { 2220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); 2221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = heap_object->GetIsolate(); 2222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map(heap_object->map(), isolate); 2223958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update( 2224958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, !isolate->heap()->InNewSpace(*object)); 2225958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = InstanceTypeField::update(bit_field_, map->instance_type()); 2226958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = 2227958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::update(bit_field_, map->is_undetectable()); 2228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_ = IsCallableField::update(bit_field_, map->is_callable()); 2229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map->is_stable()) object_map_ = Unique<Map>::CreateImmovable(map); 2230958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasStableMapValueField::update( 2231958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, 2232958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasMapValue() && Handle<Map>::cast(heap_object)->is_stable()); 2233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2239958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(Unique<Object> object, Unique<Map> object_map, 2240958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool has_stable_map_value, Representation r, HType type, 2241958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, bool boolean_value, 2242958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_undetectable, InstanceType instance_type) 2243958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(type), 2244958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(object), 2245958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(object_map), 2246958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(has_stable_map_value) | 2247958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | 2248958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(false) | 2249958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2250958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2251958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2252958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(boolean_value) | 2253958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(is_undetectable) | 2254958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(instance_type)) { 2255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object.handle().is_null()); 2256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!type.IsTaggedNumber() || type.IsNone()); 2257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2261958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(int32_t integer_value, Representation r, 2262958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2263958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2264958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2265958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2266958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(Smi::IsValid(integer_value)) | 2267958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(true) | 2268958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2269958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2270958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2271958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(integer_value != 0) | 2272958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2273958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2274958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int32_value_(integer_value), 2275958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double_value_(FastI2D(integer_value)) { 2276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2279958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2284958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(double double_value, Representation r, 2285958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2286958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2287958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2288958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2289958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(IsInteger32(double_value)) | 2290958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2291958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2292958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2293958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(double_value != 0 && 2294958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier !std::isnan(double_value)) | 2295958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2296958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2297f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch int32_value_(DoubleToInt32(double_value)) { 2298958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasSmiValueField::update( 2299958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, HasInteger32Value() && Smi::IsValid(int32_value_)); 2300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2303958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2305f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (std::isnan(double_value)) { 2306f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = std::numeric_limits<double>::quiet_NaN(); 2307f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 2308f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = double_value; 2309f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(ExternalReference reference) 2315958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::Any()), 2316958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>(Handle<Object>::null())), 2317958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2318958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_( 2319958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasStableMapValueField::encode(false) | 2320958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2321958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2322958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(true) | 2323958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(true) | BooleanValueField::encode(true) | 2324958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2325958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2326958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier external_reference_value_(reference) { 2327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(Representation::External()); 2328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HConstant::Initialize(Representation r) { 2332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsNone()) { 2333958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasSmiValue() && SmiValuesAre31Bits()) { 2334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Smi(); 2335958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasInteger32Value()) { 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 2337958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Double(); 2339958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::External(); 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = object_.handle(); 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsJSObject()) { 2344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to eagerly migrate JSObjects that have deprecated maps. 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> js_object = Handle<JSObject>::cast(object); 2346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (js_object->map()->is_deprecated()) { 2347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::TryMigrateInstance(js_object); 2348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Tagged(); 2351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 2354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we have an existing handle, zap it, because it might be a heap 2355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // number which we must not re-use when copying this HConstant to 2356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Tagged representation later, because having Smi representation now 2357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // could cause heap object checks not to get emitted. 2358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_ = Unique<Object>(Handle<Object>::null()); 2359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2360014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (r.IsSmiOrInteger32() && object_.handle().is_null()) { 2361958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // If it's not a heap object, it can't be in new space. 2362958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update(bit_field_, true); 2363958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_representation(r); 2365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kUseGVN); 2366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::ImmortalImmovable() const { 2370958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2373958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSpecialDouble()) { 2375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2378b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2379958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate()->heap(); 2385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->minus_zero_value())); 2386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->nan_value())); 2387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return 2388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define IMMORTAL_IMMOVABLE_ROOT(name) \ 2389958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_.IsKnownGlobal(heap->root(Heap::k##name##RootIndex)) || 2390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IMMORTAL_IMMOVABLE_ROOT_LIST(IMMORTAL_IMMOVABLE_ROOT) 2391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef IMMORTAL_IMMOVABLE_ROOT 2392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define INTERNALIZED_STRING(name, value) \ 2393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name()) || 2394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INTERNALIZED_STRING_LIST(INTERNALIZED_STRING) 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef INTERNALIZED_STRING 2396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define STRING_TYPE(NAME, size, name, Name) \ 2397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name##_map()) || 2398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STRING_TYPE_LIST(STRING_TYPE) 2399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef STRING_TYPE 2400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false; 2401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::EmitAtUses() { 2405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 2406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block()->graph()->has_osr() && 2407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->IsStandardConstant(this)) { 2408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return true; 2411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsCell()) return false; 2412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsDouble()) return false; 2413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsExternal()) return false; 2414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2415b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2416b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2417b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant* HConstant::CopyToRepresentation(Representation r, Zone* zone) const { 2419958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsSmi() && !HasSmiValue()) return NULL; 2420958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsInteger32() && !HasInteger32Value()) return NULL; 2421958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsDouble() && !HasDoubleValue()) return NULL; 2422958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsExternal() && !HasExternalReferenceValue()) return NULL; 2423958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2424958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(int32_value_, r, NotInNewSpace(), object_); 2425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2426958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2427958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(double_value_, r, NotInNewSpace(), object_); 2428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2429958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(external_reference_value_); 2431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2433958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(object_, object_map_, HasStableMapValue(), r, 2434958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier type_, NotInNewSpace(), BooleanValue(), 2435958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectable(), GetInstanceType()); 2436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2438b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMaybe<HConstant*> HConstant::CopyToTruncatedInt32(Zone* zone) { 2440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2441958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2442958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) HConstant(int32_value_, Representation::Integer32(), 2443958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2444958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2445958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) 2446958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HConstant(DoubleToInt32(double_value_), Representation::Integer32(), 2447958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2449014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2453014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochMaybe<HConstant*> HConstant::CopyToTruncatedNumber(Isolate* isolate, 2454014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Zone* zone) { 2455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2456014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> handle = this->handle(isolate); 2457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (handle->IsBoolean()) { 2458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = handle->BooleanValue() ? 2459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) HConstant(1) : new(zone) HConstant(0); 246013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch } else if (handle->IsUndefined(isolate)) { 2461014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch res = new (zone) HConstant(std::numeric_limits<double>::quiet_NaN()); 246213e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch } else if (handle->IsNull(isolate)) { 2463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(0); 2464109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } else if (handle->IsString()) { 2465109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch res = new(zone) HConstant(String::ToNumber(Handle<String>::cast(handle))); 24668b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 2467014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2471958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HConstant::PrintDataTo(std::ostream& os) const { // NOLINT 2472958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << int32_value_ << " "; 2474958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << double_value_ << " "; 2476958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << reinterpret_cast<void*>(external_reference_value_.address()) << " "; 2478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The handle() method is silently and lazily mutating the object. 2480014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> h = const_cast<HConstant*>(this)->handle(isolate()); 2481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Brief(*h) << " "; 2482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasStableMapValue()) os << "[stable-map] "; 2483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasObjectMap()) os << "[map " << *ObjectMap().handle() << "] "; 2484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2485958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (!NotInNewSpace()) os << "[new space] "; 2486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2490958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 2491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCanOverflow)) os << " !"; 2493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 2494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::InferRepresentation(HInferRepresentationPhase* h_infer) { 2499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 2504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 2505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 2506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.IsNone()) { 2509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 2510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 2511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromOutput(); 2513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "output"); 2514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromInputs() { 2519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Determine the worst case of observed input representations and 2520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the currently assumed output representation. 2521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i <= 2; ++i) { 2523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_input_representation(i)); 2524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 2526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 2527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBinaryOperation::IgnoreObservedOutputRepresentation( 2537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation current_rep) { 2538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ((current_rep.IsInteger32() && CheckUsesForFlag(kTruncatingToInt32)) || 2539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (current_rep.IsSmi() && CheckUsesForFlag(kTruncatingToSmi))) && 2540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mul in Integer32 mode would be too precise. 2541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!this->IsMul() || HMul::cast(this)->MulMinusOne()); 25428b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 25438b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 2544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromOutput() { 2546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Consider observed output representation, but ignore it if it's Double, 2548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this instruction is not a division, and all its uses are truncating 2549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to Integer32. 2550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.is_more_general_than(rep) && 2551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !IgnoreObservedOutputRepresentation(rep)) { 2552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return observed_output_representation_; 2553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 2555b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2556b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::AssumeRepresentation(Representation r) { 2559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(1, r); 2560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(2, r); 2561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue::AssumeRepresentation(r); 2562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HMathMinMax::InferRepresentation(HInferRepresentationPhase* h_infer) { 2566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not care about uses. 2570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25733ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HBitwise::InferRange(Zone* zone) { 2574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == Token::BIT_XOR) { 2575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->HasRange() && right()->HasRange()) { 2576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The maximum value has the high bit, and all bits below, set: 2577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (1 << high) - 1. 2578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the range can be negative, the minimum int is a negative number with 2579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the high bit, and all bits below, unset: 2580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -(1 << high). 2581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If it cannot be negative, conservatively choose 0 as minimum int. 2582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_upper = left()->range()->upper(); 2583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_lower = left()->range()->lower(); 2584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_upper = right()->range()->upper(); 2585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_lower = right()->range()->lower(); 2586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_upper < 0) left_upper = ~left_upper; 2588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_lower < 0) left_lower = ~left_lower; 2589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_upper < 0) right_upper = ~right_upper; 2590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_lower < 0) right_lower = ~right_lower; 2591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int high = MostSignificantBit( 2593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<uint32_t>( 2594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_upper | left_lower | right_upper | right_lower)); 2595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t limit = 1; 2597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit <<= high; 2598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t min = (left()->range()->CanBeNegative() || 2599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->range()->CanBeNegative()) 2600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? static_cast<int32_t>(-limit) : 0; 2601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(min, static_cast<int32_t>(limit - 1)); 2602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 26073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int32_t kDefaultMask = static_cast<int32_t>(0xffffffff); 2608e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t left_mask = (left()->range() != NULL) 2609e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? left()->range()->Mask() 26103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 2611e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t right_mask = (right()->range() != NULL) 2612e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? right()->range()->Mask() 26133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 26143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result_mask = (op() == Token::BIT_AND) 26153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left_mask & right_mask 26163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : left_mask | right_mask; 2617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result_mask >= 0) return new(zone) Range(0, result_mask); 2618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2622b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2623b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2624b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26253ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSar::InferRange(Zone* zone) { 2626b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2629e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 26303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2632e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Sar(c->Integer32Value()); 2633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 26363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26403ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShr::InferRange(Zone* zone) { 264169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (right()->IsConstant()) { 264269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HConstant* c = HConstant::cast(right()); 264369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (c->HasInteger32Value()) { 264469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch int shift_count = c->Integer32Value() & 0x1f; 264569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (left()->range()->CanBeNegative()) { 264669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Only compute bounds if the result always fits into an int32. 264769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return (shift_count >= 1) 26483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? new(zone) Range(0, 26493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<uint32_t>(0xffffffff) >> shift_count) 26503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 265169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else { 265269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // For positive inputs we can use the >> operator. 265369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (left()->range() != NULL) 26543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 265669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->Sar(c->Integer32Value()); 265769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 265869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 265969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 266069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 26613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 266269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 266369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 266469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 26653ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShl::InferRange(Zone* zone) { 2666b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2667b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2669e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 26703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2672e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Shl(c->Integer32Value()); 2673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 26763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2677b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2678b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2679b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadNamedField::InferRange(Zone* zone) { 2681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger8()) { 2682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger8()) { 2685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger16()) { 2688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger16()) { 2691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 2692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().IsStringLength()) { 2694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(0, String::kMaxLength); 2695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 2697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadKeyed::InferRange(Zone* zone) { 27013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (elements_kind()) { 2702014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT8_ELEMENTS: 2703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2704014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_ELEMENTS: 2705014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_CLAMPED_ELEMENTS: 2706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2707014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT16_ELEMENTS: 2708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2709014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT16_ELEMENTS: 2710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 27113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 27123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 27133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 27153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2717958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareGeneric::PrintDataTo(std::ostream& os) const { // NOLINT 2718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryOperation::PrintDataTo(os); 2720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2723958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringCompareAndBranch::PrintDataTo( 2724958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2730958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareNumericAndBranch::PrintDataTo( 2731958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " " << NameOf(left()) << " " << NameOf(right()); 2733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2737958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareObjectEqAndBranch::PrintDataTo( 2738958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareObjectEqAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left()->IsConstant() && right()->IsConstant()) { 2750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(left())->DataEquals(HConstant::cast(right())) 2751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsStringAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->HasStringValue() 2766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsString()) { 2770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = FirstSuccessor(); 2771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsSmi() || 2774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsNull() || 2775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsBoolean() || 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsUndefined() || 2777014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch value()->type().IsJSReceiver()) { 2778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SecondSuccessor(); 2779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsUndetectableAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->IsUndetectable() 2789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 27923b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsNull() || value()->type().IsUndefined()) { 27933b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = FirstSuccessor(); 27943b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 27953b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 27963b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsBoolean() || 27973b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsSmi() || 27983b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsString() || 27993b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsJSReceiver()) { 28003b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = SecondSuccessor(); 28013b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 28023b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 2803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HHasInstanceTypeAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType type = HConstant::cast(value())->GetInstanceType(); 2811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (from_ <= type) && (type <= to_) 2812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareHoleAndBranch::InferRepresentation( 2821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(value()->representation()); 2823b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2825b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareNumericAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left() == right() && 2828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left()->representation().IsSmiOrInteger32()) { 2829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (token() == Token::EQ || 2830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::EQ_STRICT || 2831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::LTE || 2832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::GTE) 2833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 28383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 28393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2841958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HGoto::PrintDataTo(std::ostream& os) const { // NOLINT 2842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << *SuccessorAt(0); 28433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 28443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 28453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareNumericAndBranch::InferRepresentation( 2847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_left = observed_input_representation(0); 2851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_right = observed_input_representation(1); 2852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 2854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_left); 2855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_right); 2856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone() || rep.IsSmiOrInteger32()) { 2857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Double(); 2861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 28643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // According to the ES5 spec (11.9.3, 11.8.5), Equality comparisons (==, === 28653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // and !=) have special handling of undefined, e.g. undefined == undefined 28663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // is 'true'. Relational comparisons have a different semantic, first 28673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // calling ToPrimitive() on their arguments. The standard Crankshaft 2868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // tagged-to-double conversion to ensure the HCompareNumericAndBranch's 2869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inputs are doubles caused 'undefined' to be converted to NaN. That's 2870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // compatible out-of-the box with ordered relational comparisons (<, >, <=, 28713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // >=). However, for equality comparisons (and for 'in' and 'instanceof'), 28723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // it is not consistent with the spec. For example, it would cause undefined 28733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // == undefined (should be true) to be evaluated as NaN == NaN 28743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // (false). Therefore, any comparisons other than ordered relational 28753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // comparisons must cause a deopt when one of their arguments is undefined. 28763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // See also v8:1434 2877109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (Token::IsOrderedRelationalCompareOp(token_)) { 2878c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch SetFlag(kTruncatingToNumber); 28793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2880b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(rep); 2882b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2883b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2884b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2885958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HParameter::PrintDataTo(std::ostream& os) const { // NOLINT 2886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << index(); 2887b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2888b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2890958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 2891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_; 2892b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps() != NULL) { 2894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [" << *maps()->at(0).handle(); 2895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 2896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 289744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 289944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 290044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 290344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 290444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 290544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2906958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 2907014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 2908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 2909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2910014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 2911014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 2912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 2913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 291469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 2916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 291869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (RequiresHoleCheck()) os << " check_hole"; 2921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 292269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 292369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 292469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 2926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 2927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 2928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 2929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 2930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t base_offset = BaseOffsetField::decode(bit_field_); 2931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset; 2932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 2933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 2934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset = addition_result.ValueOrDie(); 2935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!BaseOffsetField::is_valid(base_offset)) return false; 2936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bit_field_ = BaseOffsetField::update(bit_field_, base_offset); 2937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2938b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2939b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2940b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::UsesMustHandleHole() const { 2942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2946014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hole_mode() == ALLOW_RETURN_HOLE) { 2951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return AllUsesCanTreatHoleAsNaN(); 2953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Holes are only returned as tagged values. 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsTagged()) { 29633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return false; 29643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2966257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2967257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* use = it.value(); 2968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use->IsChange()) return false; 2969257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 29703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::AllUsesCanTreatHoleAsNaN() const { 2976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsFastDoubleElementsKind(elements_kind()) && 2977c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch CheckUsesForFlag(HValue::kTruncatingToNumber); 2978257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2979257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2980257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::RequiresHoleCheck() const { 2982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2986014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2987014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 2988014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2989014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2990014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { 2991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !UsesMustHandleHole(); 29953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 29963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2997c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen MurdochHValue* HCallWithDescriptor::Canonicalize() { 2998c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (kind() != Code::KEYED_LOAD_IC) return this; 29993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Recognize generic keyed loads that use property name generated 30013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by for-in statement as a key and rewrite them into fast property load 30023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by index. 3003c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch typedef LoadWithVectorDescriptor Descriptor; 3004c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HValue* key = parameter(Descriptor::kName); 3005c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (key->IsLoadKeyed()) { 3006c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HLoadKeyed* key_load = HLoadKeyed::cast(key); 3007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_load->elements()->IsForInCacheArray()) { 30083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* names_cache = 3009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HForInCacheArray::cast(key_load->elements()); 30103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3011c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HValue* object = parameter(Descriptor::kReceiver); 3012c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (names_cache->enumerable() == object) { 30133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* index_cache = 30143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch names_cache->index_cache(); 3015014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HCheckMapValue* map_check = HCheckMapValue::New( 3016014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 3017c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch block()->graph()->GetInvalidContext(), object, names_cache->map()); 3018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* index = HLoadKeyed::New( 3019014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 3020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->GetInvalidContext(), index_cache, key_load->key(), 3021014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch key_load->key(), nullptr, key_load->elements_kind()); 30223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch map_check->InsertBefore(this); 30233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index->InsertBefore(this); 3024c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Prepend(new (block()->zone()) HLoadFieldByIndex(object, index)); 30253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 30293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3031958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 3032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_ << " = " << NameOf(value()); 3033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsWriteBarrier()) os << " (write-barrier)"; 3034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_transition()) os << " (transition map " << *transition_map() << ")"; 3035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 3036b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3039958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 3040014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 3041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 3042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3043014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 3044014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 3045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 3046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 3049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 3050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "] = " << NameOf(value()); 30513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 30523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3054958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTransitionElementsKind::PrintDataTo( 3055958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()); 3057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = original_map().handle()->elements_kind(); 3058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = transitioned_map().handle()->elements_kind(); 3059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << *original_map().handle() << " [" 3060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(from_kind)->name() << "] -> " 3061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << *transitioned_map().handle() << " [" 3062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(to_kind)->name() << "]"; 3063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) os << " (simple)"; 3064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 30653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3068958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInnerAllocatedObject::PrintDataTo( 3069958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(base_object()) << " offset "; 3071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return offset()->PrintTo(os); 3072b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3073b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3074b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3075958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadContextSlot::PrintDataTo(std::ostream& os) const { // NOLINT 3076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << "[" << slot_index() << "]"; 30771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 30781e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3080958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreContextSlot::PrintDataTo( 3081958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(context()) << "[" << slot_index() 3083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3084b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 3085b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3086b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3087b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Implementation of type inference and type conversions. Calculates 3088b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// the inferred type of this instruction based on the input operands. 3089b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3090e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHType HValue::CalculateInferredType() { 3091b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return type_; 3092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HPhi::CalculateInferredType() { 3096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (OperandCount() == 0) return HType::Tagged(); 3097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType result = OperandAt(0)->type(); 3098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < OperandCount(); ++i) { 3099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType current = OperandAt(i)->type(); 3100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = result.Combine(current); 3101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3103b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3104b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HChange::CalculateInferredType() { 3107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsDouble() && to().IsTagged()) return HType::HeapNumber(); 3108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return type(); 3109b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3110b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3111b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromInputs() { 3113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (SupportsFlexibleFloorAndRound() && 3114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (op_ == kMathFloor || op_ == kMathRound)) { 3115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Floor and Round always take a double input. The integral result can be 3116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // used as an integer or a double. Infer the representation from the uses. 3117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 3120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 3121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 3122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation input_rep = value()->representation(); 3123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!input_rep.IsTagged()) { 3124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(input_rep); 3125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3127b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3128b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3129b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HAllocate::HandleSideEffectDominator(GVNFlag side_effect, 3131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator) { 3132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(side_effect == kNewSpacePromotion); 3133bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch DCHECK(!IsAllocationFolded()); 3134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3135014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Isolate* isolate = block()->isolate(); 3136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_use_allocation_folding) return false; 3137b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to fold allocations together with their dominating allocations. 3139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator->IsAllocate()) { 3140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s)\n", 3142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3146b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check whether we are folding within the same block for local folding. 3148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_use_local_allocation_folding && dominator->block() != block()) { 3149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), crosses basic blocks\n", 3151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3154b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3155b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAllocate* dominator_allocate = HAllocate::cast(dominator); 3157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator_size = dominator_allocate->size(); 3158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* current_size = size(); 3159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): Add support for non-constant allocation in dominator. 3161bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!current_size->IsInteger32Constant() || 3162bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch !dominator_size->IsInteger32Constant()) { 3163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), " 3165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "dynamic allocation size in dominator\n", 3166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3171f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFoldingDominator()) { 3172f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (FLAG_trace_allocation_folding) { 3173f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), already dominator\n", id(), 3174f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Mnemonic(), dominator->id(), dominator->Mnemonic()); 3175f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3176f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch return false; 3177f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3178014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3179014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!IsFoldable(dominator_allocate)) { 3180014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (FLAG_trace_allocation_folding) { 3181014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), different spaces\n", id(), 3182014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Mnemonic(), dominator->id(), dominator->Mnemonic()); 3183014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3187014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK( 3188014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsNewSpaceAllocation() && dominator_allocate->IsNewSpaceAllocation()) || 3189014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsOldSpaceAllocation() && dominator_allocate->IsOldSpaceAllocation())); 3190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // First update the size of the dominator allocate instruction. 3192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size = dominator_allocate->size(); 3193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t original_object_size = 3194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(dominator_size)->GetInteger32Constant(); 3195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t dominator_size_constant = original_object_size; 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((dominator_size_constant & kDoubleAlignmentMask) != 0) { 3199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant += kDoubleSize / 2; 3200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3203bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch int32_t current_size_max_value = size()->GetInteger32Constant(); 3204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t new_dominator_size = dominator_size_constant + current_size_max_value; 32053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we clear the first word after folded memory, we cannot use the 3207f3b273f5e6ffd2f6ba1c18a27a17db41dfb113c3Ben Murdoch // whole kMaxRegularHeapObjectSize memory. 3208f3b273f5e6ffd2f6ba1c18a27a17db41dfb113c3Ben Murdoch if (new_dominator_size > kMaxRegularHeapObjectSize - kPointerSize) { 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s) due to size: %d\n", 3211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic(), new_dominator_size); 3213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 32163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3217bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HInstruction* new_dominator_size_value = HConstant::CreateAndInsertBefore( 3218bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch isolate, zone, context(), new_dominator_size, Representation::None(), 3219bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate); 32201e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->UpdateSize(new_dominator_size_value); 3222b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator_allocate->MustAllocateDoubleAligned()) { 3225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->MakeDoubleAligned(); 3226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3228b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3229bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!dominator_allocate->IsAllocationFoldingDominator()) { 3230bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate* first_alloc = 3231bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate::New(isolate, zone, dominator_allocate->context(), 3232bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_size, dominator_allocate->type(), 3233bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch IsNewSpaceAllocation() ? NOT_TENURED : TENURED, 3234bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch JS_OBJECT_TYPE, block()->graph()->GetConstant0()); 3235bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->InsertAfter(dominator_allocate); 3236bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->ReplaceAllUsesWith(first_alloc); 3237bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->MakeAllocationFoldingDominator(); 3238bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->MakeFoldedAllocation(dominator_allocate); 3239bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (FLAG_trace_allocation_folding) { 3240bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) inserted for dominator #%d (%s)\n", first_alloc->id(), 3241bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->Mnemonic(), dominator_allocate->id(), 3242bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->Mnemonic()); 3243bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3244bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3246bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch MakeFoldedAllocation(dominator_allocate); 3247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3249bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) folded into #%d (%s), new dominator size: %d\n", id(), 3250bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch Mnemonic(), dominator_allocate->id(), dominator_allocate->Mnemonic(), 3251bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch new_dominator_size); 3252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3254b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3255b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3256b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3257958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAllocate::PrintDataTo(std::ostream& os) const { // NOLINT 3258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(size()) << " ("; 3259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsNewSpaceAllocation()) os << "N"; 3260014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsOldSpaceAllocation()) os << "P"; 3261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) os << "A"; 3262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustPrefillWithFiller()) os << "F"; 3263f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFoldingDominator()) os << "d"; 3264f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFolded()) os << "f"; 3265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3268b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 3270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 3271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 3272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 3273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 3274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset_; 3275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 3276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 3277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset_ = addition_result.ValueOrDie(); 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3279b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3280b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3281b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::NeedsCanonicalization() { 3283014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch switch (value()->opcode()) { 3284014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kLoadKeyed: { 3285014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ElementsKind load_kind = HLoadKeyed::cast(value())->elements_kind(); 3286014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return IsFixedFloatElementsKind(load_kind); 3287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3288014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kChange: { 3289014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation from = HChange::cast(value())->from(); 3290014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return from.IsTagged() || from.IsHeapObject(); 3291014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3292f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch case kConstant: 3293f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Double constants are canonicalized upon construction. 3294014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 3295f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch default: 3296f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch return !value()->IsBinaryOperation(); 3297b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3298b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3299b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3300b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3301014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_INT(val) \ 3302014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<int32_t>(val)) 3303014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_DOUBLE(val) \ 3304014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<double>(val)) 3305b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3306109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HInstr, op) \ 3307109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3308109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3309109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3310109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3311109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3312109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3313109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch double double_res = c_left->DoubleValue() op c_right->DoubleValue(); \ 3314109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (IsInt32Double(double_res)) { \ 3315109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(double_res); \ 3316109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3317109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_DOUBLE(double_res); \ 3318109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3319109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3320109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3321014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3322b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HAdd, +) 3324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HMul, *) 3325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HSub, -) 3326257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR 3328257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3330014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringAdd::New(Isolate* isolate, Zone* zone, HValue* context, 3331014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, 3332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PretenureFlag pretenure_flag, 3333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddFlags flags, 3334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<AllocationSite> allocation_site) { 3335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasStringValue() && c_right->HasStringValue()) { 3339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> left_string = c_left->StringValue(); 3340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> right_string = c_right->StringValue(); 3341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prevent possible exception by invalid string length. 3342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_string->length() + right_string->length() < String::kMaxLength) { 3343014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MaybeHandle<String> concat = isolate->factory()->NewConsString( 3344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_left->StringValue(), c_right->StringValue()); 3345014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, concat.ToHandleChecked()); 3346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3348b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3349014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return new (zone) 3350014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HStringAdd(context, left, right, pretenure_flag, flags, allocation_site); 3351b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3352b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3353b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3354958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringAdd::PrintDataTo(std::ostream& os) const { // NOLINT 3355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_BOTH) { 3356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckBoth"; 3357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_LEFT) { 3358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckLeft"; 3359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_RIGHT) { 3360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckRight"; 3361b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::PrintDataTo(os); 3363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " ("; 3364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pretenure_flag() == NOT_TENURED) 3365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "N"; 3366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch else if (pretenure_flag() == TENURED) 3367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "D"; 3368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3372014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringCharFromCode::New(Isolate* isolate, Zone* zone, 3373014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* char_code) { 3374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && char_code->IsConstant()) { 3375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_code = HConstant::cast(char_code); 3376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_code->HasNumberValue()) { 3377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isfinite(c_code->DoubleValue())) { 3378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t code = c_code->NumberValueAsInteger32() & 0xffff; 3379014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New( 3380014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate, zone, context, 3381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->factory()->LookupSingleCharacterStringFromCode(code)); 3382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3383014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, 3384014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate->factory()->empty_string()); 3385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HStringCharFromCode(context, char_code); 3388b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3390b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3391014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HUnaryMathOperation::New(Isolate* isolate, Zone* zone, 3392014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 3393014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BuiltinFunctionId op) { 3394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch do { 3395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_fold_constants) break; 3396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsConstant()) break; 3397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value); 3398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!constant->HasNumberValue()) break; 3399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d = constant->DoubleValue(); 3400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isnan(d)) { // NaN poisons everything. 3401014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isinf(d)) { // +Infinity and -Infinity. 3404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 340513e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 340613e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 340713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 3409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0); 3410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 3411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3412014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE( 3413014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (d > 0.0) ? d : std::numeric_limits<double>::quiet_NaN()); 3414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d); 3417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(d); 3421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 3422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(32); 3423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 342913e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 343013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::cos(d)); 3431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 343213e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::exp(d)); 3433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 343413e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::log(d)); 343513e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 343613e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::sin(d)); 3437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3438014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch lazily_initialize_fast_sqrt(isolate); 3439014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(fast_sqrt(d, isolate)); 3440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(power_double_double(d, 0.5)); 3442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d); 3444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -0.5 .. -0.0 round to -0.0. 3446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0); 3447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Doubles are represented as Significant * 2 ^ Exponent. If the 3448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Exponent is not negative, the double value is already an integer. 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Double(d).Exponent() >= 0) return H_CONSTANT_DOUBLE(d); 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d + 0.5)); 3451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<double>(static_cast<float>(d))); 3453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d)); 3455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: { 3456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t i = DoubleToUint32(d); 3457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(base::bits::CountLeadingZeros32(i)); 3458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } while (false); 3464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HUnaryMathOperation(context, value, op); 3465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3466b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3467b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromUses() { 3469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op_ != kMathFloor && op_ != kMathRound) { 3470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::RepresentationFromUses(); 3471b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3472b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The instruction can have an int32 or double output. Prefer a double 3474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation if there are double uses. 3475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool use_double = false; 3476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int use_index = it.index(); 3480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_observed = use->observed_input_representation(use_index); 3481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_required = use->RequiredInputRepresentation(use_index); 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use_double |= (rep_observed.IsDouble() || rep_required.IsDouble()); 3483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_double && !FLAG_trace_representation) { 3484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Having seen one double is enough. 3485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 3488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!rep_required.IsDouble() || rep_observed.IsDouble()) { 3489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 3490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_observed.Mnemonic(), 3492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is required by #%d %s as %s%s\n", 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_required.Mnemonic(), 3497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3500b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return use_double ? Representation::Double() : Representation::Integer32(); 3502b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3503b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3504b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3505014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HPower::New(Isolate* isolate, Zone* zone, HValue* context, 3506014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right) { 3507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3511014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch double result = 3512014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch power_helper(isolate, c_left->DoubleValue(), c_right->DoubleValue()); 3513014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::isnan(result) 3514014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? std::numeric_limits<double>::quiet_NaN() 3515014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : result); 3516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HPower(left, right); 35193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3522014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMathMinMax::New(Isolate* isolate, Zone* zone, HValue* context, 3523014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, Operation op) { 3524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_left = c_left->DoubleValue(); 3529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_right = c_right->DoubleValue(); 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == kMathMin) { 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_right); 3532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_left); 3533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_left 3536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_right); 3537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_right); 3540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_left); 3541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_right 3544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_left); 3545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // All comparisons failed, must be NaN. 3548014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HMathMinMax(context, left, right, op); 3552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 35533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3554014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMod::New(Isolate* isolate, Zone* zone, HValue* context, 3555109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_left->HasInteger32Value() && c_right->HasInteger32Value()) { 35603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t dividend = c_left->Integer32Value(); 35613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t divisor = c_right->Integer32Value(); 3562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dividend == kMinInt && divisor == -1) { 3563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 3564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 35653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (divisor != 0) { 35663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t res = dividend % divisor; 35673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((res == 0) && (dividend < 0)) { 35683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 35693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(res); 35713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3574109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HMod(context, left, right); 35753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3577014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HDiv::New(Isolate* isolate, Zone* zone, HValue* context, 3578109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 35793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If left and right are constant values, try to return a constant value. 3580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 3584c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (std::isnan(c_left->DoubleValue()) || 3585c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch std::isnan(c_right->DoubleValue())) { 3586c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3587c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else if (c_right->DoubleValue() != 0) { 35883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double double_res = c_left->DoubleValue() / c_right->DoubleValue(); 3589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsInt32Double(double_res)) { 3590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(double_res); 35913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(double_res); 3593c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else if (c_left->DoubleValue() != 0) { 3594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int sign = Double(c_left->DoubleValue()).Sign() * 3595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Double(c_right->DoubleValue()).Sign(); // Right could be -0. 3596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(sign * V8_INFINITY); 3597c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else { 3598c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 35993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3602109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HDiv(context, left, right); 36033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3605014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HBitwise::New(Isolate* isolate, Zone* zone, HValue* context, 3606109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch Token::Value op, HValue* left, HValue* right) { 3607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 36083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 36093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 36103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 36113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result; 36123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_left = c_left->NumberValueAsInteger32(); 36133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_right = c_right->NumberValueAsInteger32(); 36143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 36153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_XOR: 36163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left ^ v_right; 36173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_AND: 36193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left & v_right; 36203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_OR: 36223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left | v_right; 36233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 36253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = 0; // Please the compiler. 36263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 36273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(result); 36293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3631109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HBitwise(context, op, left, right); 36323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3634109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_BITWISE_INSTR(HInstr, result) \ 3635109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3636109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3637109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3638109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3639109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3640109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3641109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(result); \ 3642109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3643109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3644109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3645014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 36463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36473ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HSar, 36483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() >> (c_right->NumberValueAsInteger32() & 0x1f)) 36493ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HShl, 36503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() << (c_right->NumberValueAsInteger32() & 0x1f)) 36513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef DEFINE_NEW_H_BITWISE_INSTR 36533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3654014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HShr::New(Isolate* isolate, Zone* zone, HValue* context, 3655109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 36573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 36583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 36593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 36603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t left_val = c_left->NumberValueAsInteger32(); 36613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t right_val = c_right->NumberValueAsInteger32() & 0x1f; 36623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((right_val == 0) && (left_val < 0)) { 3663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<uint32_t>(left_val)); 36643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(static_cast<uint32_t>(left_val) >> right_val); 36663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3668109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HShr(context, left, right); 36693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3672014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HSeqStringGetChar::New(Isolate* isolate, Zone* zone, 3673014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, String::Encoding encoding, 3674014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* string, HValue* index) { 3675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && string->IsConstant() && index->IsConstant()) { 3676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_string = HConstant::cast(string); 3677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_index = HConstant::cast(index); 3678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_string->HasStringValue() && c_index->HasInteger32Value()) { 3679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> s = c_string->StringValue(); 3680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t i = c_index->Integer32Value(); 3681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, i); 3682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(i, s->length()); 3683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(s->Get(i)); 3684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HSeqStringGetChar(encoding, string, index); 3687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef H_CONSTANT_INT 36913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef H_CONSTANT_DOUBLE 36923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3694958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBitwise::PrintDataTo(std::ostream& os) const { // NOLINT 3695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(op_) << " "; 3696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBitwiseBinaryOperation::PrintDataTo(os); 3697257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 3698257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3699257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::SimplifyConstantInputs() { 3701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert constant inputs to integers when all uses are truncating. 3702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This must happen before representation inference takes place. 3703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!CheckUsesForFlag(kTruncatingToInt32)) return; 37043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!OperandAt(i)->IsConstant()) return; 3706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HGraph* graph = block()->graph(); 3708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* operand = HConstant::cast(OperandAt(i)); 3710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand->HasInteger32Value()) { 37113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch continue; 3712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasDoubleValue()) { 3713014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant* integer_input = HConstant::New( 3714014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch graph->isolate(), graph->zone(), graph->GetInvalidContext(), 3715014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DoubleToInt32(operand->DoubleValue())); 3716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch integer_input->InsertAfter(operand); 3717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, integer_input); 3718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasBooleanValue()) { 3719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, operand->BooleanValue() ? graph->GetConstant1() 3720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : graph->GetConstant0()); 3721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->ImmortalImmovable()) { 3722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, graph->GetConstant0()); 37233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Overwrite observed input representations because they are likely Tagged. 3726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use->IsBinaryOperation()) { 3729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::cast(use)->set_observed_input_representation( 3730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.index(), Representation::Smi()); 37313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 37323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 37353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::InferRepresentation(HInferRepresentationPhase* h_infer) { 3737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 3738958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation new_rep = RepresentationFromUses(); 3739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 3740958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier new_rep = RepresentationFromInputs(); 3741958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier UpdateRepresentation(new_rep, h_infer, "inputs"); 3742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUseRequirements(); 3743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "use requirements"); 3744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HPhi::RepresentationFromInputs() { 3748958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation r = representation(); 3749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3750958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Ignore conservative Tagged assumption of parameters if we have 3751958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // reason to believe that it's too conservative. 3752014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (has_type_feedback_from_uses() && OperandAt(i)->IsParameter()) { 3753014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch continue; 3754014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3755958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = r.generalize(OperandAt(i)->KnownOptimalRepresentation()); 3757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return r; 3759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns a representation if all uses agree on the same representation. 3763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Integer32 is also returned when some uses are Smi but others are Integer32. 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUseRequirements() { 3765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ignore the use requirement from never run code 3768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->block()->IsUnreachable()) continue; 3769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone()) { 3774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = use_rep; 3775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_rep.IsNone() || rep.Equals(use_rep)) continue; 3778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.generalize(use_rep).IsInteger32()) { 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Integer32(); 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasNonSmiUse() { 3789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use_rep.IsNone() && 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsSmi() && 3795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsTagged()) { 3796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 38003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 38013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 38023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Node-specific verification code is only included in debug mode. 3804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 3805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HPhi::Verify() { 3807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(OperandCount() == block()->predecessors()->length()); 3808b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 3809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* value = OperandAt(i); 3810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* defining_block = value->block(); 3811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* predecessor_block = block()->predecessors()->at(i); 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(defining_block == predecessor_block || 3813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch defining_block->Dominates(predecessor_block)); 3814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3817b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HSimulate::Verify() { 3819b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasAstId() || next()->IsEnterInlined()); 3821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3823b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckHeapObject::Verify() { 3825b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3828b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3829b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckValue::Verify() { 3831b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3833b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 3836b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForFixedArrayHeader(int offset) { 3839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset < FixedArray::kHeaderSize); 3841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == FixedArray::kLengthOffset) return ForFixedArrayLength(); 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3844b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3845b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForMapAndOffset(Handle<Map> map, int offset, 3847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool existing_inobject_property = true; 3857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!map.is_null()) { 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch existing_inobject_property = (offset < 3859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch map->instance_size() - map->unused_property_fields() * kPointerSize); 3860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, representation, Handle<String>::null(), 3862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, existing_inobject_property); 3863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForAllocationSiteOffset(int offset) { 3867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (offset) { 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kTransitionInfoOffset: 3869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kNestedSiteOffset: 3871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureDataOffset: 3873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureCreateCountOffset: 3875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kDependentCodeOffset: 3877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kWeakNextOffset: 3879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3884b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForContextSlot(int index) { 3888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index >= 0); 3889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = Context::kHeaderSize + index * kPointerSize; 3891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(offset, Context::SlotOffset(index) + kHeapObjectTag); 3892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, Representation::Tagged()); 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3896958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHObjectAccess HObjectAccess::ForScriptContext(int index) { 3897958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(index >= 0); 3898958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Portion portion = kInobject; 3899958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int offset = ScriptContextTable::GetContextOffset(index); 3900958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return HObjectAccess(portion, offset, Representation::Tagged()); 3901958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 3902958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3903958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForJSArrayOffset(int offset) { 3905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSArray::kLengthOffset) { 3911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kArrayLengths; 3912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset); 3916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForBackingStoreOffset(int offset, 3920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, 3923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String>::null(), false, false); 3924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForField(Handle<Map> map, int index, 3928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation, 3929014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name) { 3930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index < 0) { 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Negative property indices are in-object properties, indexed 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // from the end of the fixed part of the object. 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + map->instance_size(); 3934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, representation, name, false, true); 3935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Non-negative property indices are in the properties array. 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + FixedArray::kHeaderSize; 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, name, 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, false); 3940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HObjectAccess::SetGVNFlags(HValue *instr, PropertyAccessType access_type) { 3945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // set the appropriate GVN flags for a given load or store instruction 3946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // track dominating allocations in order to eliminate write barriers 3948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kNewSpacePromotion); 3949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kTrackSideEffectDominators); 3950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // try to GVN loads, but don't hoist above map changes 3952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kUseGVN); 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 3954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (portion()) { 3957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kArrayLengths: 3958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kArrayLengths); 3960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kArrayLengths); 3962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kStringLengths: 3965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kStringLengths); 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kStringLengths); 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kInobject: 3972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kInobjectFields); 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kInobjectFields); 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kDouble: 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kDoubleFields); 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kDoubleFields); 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kBackingStore: 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kBackingStoreFields); 3988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kBackingStoreFields); 3990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kElementsPointer: 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kElementsPointer); 3995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kElementsPointer); 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMaps: 4000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kMaps); 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 4004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kExternalMemory: 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kExternalMemory); 4009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kExternalMemory); 4011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4017958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HObjectAccess& access) { 4018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "."; 4019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (access.portion()) { 4021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kArrayLengths: 4022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kStringLengths: 4023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%length"; 4024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kElementsPointer: 4026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%elements"; 4027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kMaps: 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%map"; 4030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kDouble: // fall through 4032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kInobject: 4033014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[in-object]"; 4037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kBackingStore: 4039014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[backing-store]"; 4043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kExternalMemory: 4045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[external-memory]"; 4046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "@" << access.offset(); 4050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4051b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4052014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace internal 4053014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace v8 4054