hydrogen-instructions.cc revision c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7a
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" 15b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#if V8_TARGET_ARCH_IA32 17014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ia32/lithium-ia32.h" // NOLINT 18b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_X64 19014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x64/lithium-x64.h" // NOLINT 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_ARM64 21014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm64/lithium-arm64.h" // NOLINT 22b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_ARM 23014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm/lithium-arm.h" // NOLINT 24014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#elif V8_TARGET_ARCH_PPC 25014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ppc/lithium-ppc.h" // NOLINT 2644f0eee88ff00398ff7f715fab053374d808c90dSteve Block#elif V8_TARGET_ARCH_MIPS 27014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips/lithium-mips.h" // NOLINT 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_MIPS64 29014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips64/lithium-mips64.h" // NOLINT 303b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#elif V8_TARGET_ARCH_S390 313b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#include "src/crankshaft/s390/lithium-s390.h" // NOLINT 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_X87 33014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x87/lithium-x87.h" // NOLINT 34b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#else 35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#error Unsupported target architecture. 36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 37b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 39b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 40b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 41b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#define DEFINE_COMPILE(type) \ 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ 43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return builder->Do##type(this); \ 44b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 45b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochHYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) 46b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef DEFINE_COMPILE 47b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 48c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen MurdochRepresentation RepresentationFromMachineType(MachineType type) { 49c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::Int32()) { 50c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Integer32(); 51c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 52c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 53c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::TaggedSigned()) { 54c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Smi(); 55c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 56c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 57c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (type == MachineType::Pointer()) { 58c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::External(); 59c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } 60c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch 61c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Representation::Tagged(); 62c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch} 63b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochIsolate* HValue::isolate() const { 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->isolate(); 673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 70257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::AssumeRepresentation(Representation r) { 71257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (CheckFlag(kFlexibleRepresentation)) { 72257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ChangeRepresentation(r); 73257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The representation of the value is dictated by type feedback and 74257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // will not be changed later. 75257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ClearFlag(kFlexibleRepresentation); 76257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 77b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 78b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 79b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::InferRepresentation(HInferRepresentationPhase* h_infer) { 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 83b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUses() { 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return Representation::None(); 95014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation result = Representation::None(); 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = use->observed_input_representation(it.index()); 100014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize(rep); 101014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 108014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsPhi()) { 109014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize( 110014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HPhi::cast(this)->representation_from_indirect_uses()); 111014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 113014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // External representations are dealt with separately. 114014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return result.IsExternal() ? Representation::None() : result; 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::UpdateRepresentation(Representation new_rep, 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer, 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* reason) { 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_rep.is_more_general_than(r)) { 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCannotBeTagged) && new_rep.IsTagged()) return; 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Changing #%d %s representation %s -> %s based on %s\n", 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), r.Mnemonic(), new_rep.Mnemonic(), reason); 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(new_rep); 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDependantsToWorklist(h_infer); 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::AddDependantsToWorklist(HInferRepresentationPhase* h_infer) { 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(it.value()); 137b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(OperandAt(i)); 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t ConvertAndSetOverflow(Representation r, 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t result, 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > Smi::kMaxValue) { 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMaxValue; 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < Smi::kMinValue) { 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMinValue; 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > kMaxInt) { 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMaxInt; 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < kMinInt) { 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMinInt; 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 165b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return static_cast<int32_t>(result); 167b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 169b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AddWithoutOverflow(Representation r, 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 174b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) + static_cast<int64_t>(b); 175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 176b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 177b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 178b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t SubWithoutOverflow(Representation r, 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) - static_cast<int64_t>(b); 184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t MulWithoutOverflow(const Representation& r, 189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 192b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) * static_cast<int64_t>(b); 193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 194b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 195b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 196b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 197b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochint32_t Range::Mask() const { 198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ == upper_) return lower_; 199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ >= 0) { 200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t res = 1; 201b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (res < upper_) { 202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch res = (res << 1) | 1; 203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return 0xffffffff; 207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 208b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 209b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::AddConstant(int32_t value) { 211b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (value == 0) return; 212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; // Overflow is ignored here. 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = Representation::Integer32(); 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, value, &may_overflow); 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, value, &may_overflow); 2163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 217b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 219b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 220b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 221b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 222e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Intersect(Range* other) { 223e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Min(upper_, other->upper_); 224e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Max(lower_, other->lower_); 225e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() && other->CanBeMinusZero(); 226e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 227e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 228e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 229e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 230e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Union(Range* other) { 231e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Max(upper_, other->upper_); 232e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Min(lower_, other->lower_); 233e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() || other->CanBeMinusZero(); 234e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 235e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 236e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 237e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMax(Range* other) { 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Max(upper_, other->upper_); 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Max(lower_, other->lower_); 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMin(Range* other) { 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Min(upper_, other->upper_); 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Min(lower_, other->lower_); 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 252e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Sar(int32_t value) { 253e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 254e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ >> bits; 255e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ >> bits; 256e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 257e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 258e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 259e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 260e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Shl(int32_t value) { 261e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 262e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_lower = lower_; 263e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_upper = upper_; 264e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ << bits; 265e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ << bits; 266e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (old_lower != lower_ >> bits || old_upper != upper_ >> bits) { 267e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = kMaxInt; 268e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = kMinInt; 269e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 270e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 271e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 272e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 273e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::AddAndCheckOverflow(const Representation& r, Range* other) { 275b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, other->lower(), &may_overflow); 277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, other->upper(), &may_overflow); 278f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 279f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 280f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 281f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch KeepOrder(); 282f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 286b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 287b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 288b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::SubAndCheckOverflow(const Representation& r, Range* other) { 291b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = SubWithoutOverflow(r, lower_, other->upper(), &may_overflow); 293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = SubWithoutOverflow(r, upper_, other->lower(), &may_overflow); 294f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 295f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 296f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 297f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch KeepOrder(); 298f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 300b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 302b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 303b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 305f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdochvoid Range::Clear() { 306f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch lower_ = kMinInt; 307f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch upper_ = kMaxInt; 308f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch} 309b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 310b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::KeepOrder() { 311b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ > upper_) { 312b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t tmp = lower_; 313b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = upper_; 314b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = tmp; 315b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 316b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 317b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 318b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 320b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::Verify() const { 321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(lower_ <= upper_); 322b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 324b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 325b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::MulAndCheckOverflow(const Representation& r, Range* other) { 327b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v1 = MulWithoutOverflow(r, lower_, other->lower(), &may_overflow); 329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v2 = MulWithoutOverflow(r, lower_, other->upper(), &may_overflow); 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v3 = MulWithoutOverflow(r, upper_, other->lower(), &may_overflow); 331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v4 = MulWithoutOverflow(r, upper_, other->upper(), &may_overflow); 332f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (may_overflow) { 333f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Clear(); 334f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 335f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch lower_ = Min(Min(v1, v2), Min(v3, v4)); 336f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch upper_ = Max(Max(v1, v2), Max(v3, v4)); 337f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 339b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 341b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 342b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 343b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 344b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 345257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochbool HValue::IsDefinedAfter(HBasicBlock* other) const { 346257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return block()->block_id() > other->block_id(); 347257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 348257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 349257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3503ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHUseListNode* HUseListNode::tail() { 3513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Skip and remove dead items in the use list. 3523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (tail_ != NULL && tail_->value()->CheckFlag(HValue::kIsDead)) { 3533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch tail_ = tail_->tail_; 3543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return tail_; 3563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f) const { 3603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 3623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!it.value()->CheckFlag(f)) return false; 3633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return true; 3653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f, HValue** value) const { 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) { 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *value = it.value(); 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasAtLeastOneUseWithFlagAndNoneWithout(Flag f) const { 381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool return_value = false; 382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) return false; 385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_value = true; 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return return_value; 388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 391257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseIterator::HUseIterator(HUseListNode* head) : next_(head) { 392257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Advance(); 393257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 394257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 395257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 396257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HUseIterator::Advance() { 397257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current_ = next_; 398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current_ != NULL) { 399257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch next_ = current_->tail(); 400257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value_ = current_->value(); 401257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch index_ = current_->index(); 402b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 403b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 404b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 405b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 406257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochint HValue::UseCount() const { 407257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int count = 0; 408257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) ++count; 409257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return count; 410b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 411b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 412b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 413257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseListNode* HValue::RemoveUse(HValue* value, int index) { 414257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* previous = NULL; 415257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* current = use_list_; 416257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (current != NULL) { 417257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current->value() == value && current->index() == index) { 418257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (previous == NULL) { 419257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = current->tail(); 420257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 421257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous->set_tail(current->tail()); 422257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 423257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch break; 424b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 425257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 426257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous = current; 427257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = current->tail(); 428b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 429257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 430257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#ifdef DEBUG 431257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Do not reuse use list nodes in debug mode, zap them. 432257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current != NULL) { 433257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* temp = 434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(block()->zone()) 435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUseListNode(current->value(), current->index(), NULL); 436257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current->Zap(); 437257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = temp; 438257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 439257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#endif 440257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return current; 441b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 444e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HValue::Equals(HValue* other) { 445b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (other->opcode() != opcode()) return false; 446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->representation().Equals(representation())) return false; 447b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->type_.Equals(type_)) return false; 4481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (other->flags() != flags()) return false; 449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandCount() != other->OperandCount()) return false; 450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandAt(i)->id() != other->OperandAt(i)->id()) return false; 452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = DataEquals(other); 454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result || Hashcode() == other->Hashcode()); 455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 459e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochintptr_t HValue::Hashcode() { 460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch intptr_t result = opcode(); 461b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 462b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < count; ++i) { 463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result = result * 19 + OperandAt(i)->id() + (result >> 7); 464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 466b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 467b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 468b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 469257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochconst char* HValue::Mnemonic() const { 470257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (opcode()) { 471257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#define MAKE_CASE(type) case k##type: return #type; 472257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE) 473257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef MAKE_CASE 474257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case kPhi: return "Phi"; 475257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: return ""; 476257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 477257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 478257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 479257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CanReplaceWithDummyUses() { 481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FLAG_unreachable_code_elimination && 482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(block()->IsReachable() || 483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsBlockEntry() || 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsControlInstruction() || 485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsArgumentsObject() || 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsCapturedObject() || 487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSimulate() || 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsEnterInlined() || 489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsLeaveInlined()); 490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::IsInteger32Constant() { 494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsConstant() && HConstant::cast(this)->HasInteger32Value(); 495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t HValue::GetInteger32Constant() { 499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::cast(this)->Integer32Value(); 500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::EqualsInteger32Constant(int32_t value) { 504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsInteger32Constant() && GetInteger32Constant() == value; 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 508b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::SetOperandAt(int index, HValue* value) { 509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RegisterUse(index, value); 510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InternalSetOperandAt(index, value); 511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 512b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 513b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 514257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::DeleteAndReplaceWith(HValue* other) { 515257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We replace all uses first, so Delete can assert that there are none. 516257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (other != NULL) ReplaceAllUsesWith(other); 5173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Kill(); 518257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DeleteFromGraph(); 519b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 522257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::ReplaceAllUsesWith(HValue* other) { 523257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (use_list_ != NULL) { 524257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* list_node = use_list_; 525257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = list_node->value(); 526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->block()->IsStartBlock()); 527257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value->InternalSetOperandAt(list_node->index(), other); 528257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = list_node->tail(); 529257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch list_node->set_tail(other->use_list_); 530257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch other->use_list_ = list_node; 531b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 532b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 533b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 534b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::Kill() { 5363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Instead of going through the entire use list of each operand, we only 5373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // check the first item in each use list and rely on the tail() method to 5383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // skip dead items, removing them lazily next time we traverse the list. 5393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetFlag(kIsDead); 540b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 5413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HValue* operand = OperandAt(i); 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand == NULL) continue; 5433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HUseListNode* first = operand->use_list_; 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (first != NULL && first->value()->CheckFlag(kIsDead)) { 5453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch operand->use_list_ = first->tail(); 5463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 547b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 548b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 550b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 551257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::SetBlock(HBasicBlock* block) { 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block_ == NULL || block == NULL); 553257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch block_ = block; 554257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (id_ == kNoNumber && block != NULL) { 555257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch id_ = block->graph()->GetNextValueID(this); 556b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 560958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HValue& v) { 561958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return v.PrintTo(os); 562958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 565958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const TypeOf& t) { 566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (t.value->representation().IsTagged() && 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !t.value->type().Equals(HType::Tagged())) 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << " type:" << t.value->type(); 570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 573958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const ChangesOf& c) { 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVNFlagSet changes_flags = c.value->ChangesFlags(); 575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.IsEmpty()) return os; 576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " changes["; 577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags == c.value->AllSideEffectsFlagSet()) { 578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "*"; 579257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool add_comma = false; 581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define PRINT_DO(Type) \ 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.Contains(k##Type)) { \ 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (add_comma) os << ","; \ 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add_comma = true; \ 585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << #Type; \ 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_TRACKED_FLAG_LIST(PRINT_DO); 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_UNTRACKED_FLAG_LIST(PRINT_DO); 589257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef PRINT_DO 590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "]"; 592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasMonomorphicJSObjectType() { 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !GetMonomorphicJSObjectMap().is_null(); 597b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 598b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 599b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 600b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HValue::UpdateInferredType() { 601b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HType type = CalculateInferredType(); 602b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = (!type.Equals(type_)); 603b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch type_ = type; 604b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 605b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 606b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 607b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RegisterUse(int index, HValue* new_value) { 609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* old_value = OperandAt(index); 610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (old_value == new_value) return; 611257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 612257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* removed = NULL; 613257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (old_value != NULL) { 614257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed = old_value->RemoveUse(this, index); 615257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 616257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 617b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (new_value != NULL) { 618257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (removed == NULL) { 619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_value->use_list_ = new(new_value->block()->zone()) HUseListNode( 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, index, new_value->use_list_); 621257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 622257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed->set_tail(new_value->use_list_); 623257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch new_value->use_list_ = removed; 624257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 625b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 626b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::AddNewRange(Range* r, Zone* zone) { 6303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) ComputeInitialRange(zone); 6313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) range_ = new(zone) Range(); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch r->StackUpon(range_); 634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = r; 635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 636b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RemoveLastAddedRange() { 639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(range_->next() != NULL); 641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = range_->next(); 642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 643b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::ComputeInitialRange(Zone* zone) { 646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!HasRange()); 6473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch range_ = InferRange(zone); 648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 652958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintTo(std::ostream& os) const { // NOLINT 653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Mnemonic() << " "; 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintDataTo(os) << ChangesOf(this) << TypeOf(this); 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kHasNoObservableSideEffects)) os << " [noOSE]"; 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kIsDead)) os << " [dead]"; 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 658257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 659b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 661958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintDataTo(std::ostream& os) const { // NOLINT 662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << " "; 664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)); 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 667b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::Unlink() { 671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); // Must never move control instructions. 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsBlockEntry()); // Doesn't make sense to delete these. 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(previous_ != NULL); 675e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch previous_->next_ = next_; 676e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (next_ == NULL) { 677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block()->last() == this); 678e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch block()->set_last(previous_); 679e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 680e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch next_->previous_ = previous_; 681e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch clear_block(); 683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 685b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 686b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertBefore(HInstruction* next) { 687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->IsBlockEntry()); 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); 690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->block()->IsStartBlock()); 691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->previous_ != NULL); 692b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* prev = next->previous(); 693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch prev->next_ = this; 694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next->previous_ = this; 695b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 696b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = prev; 697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(next->block()); 698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && next->has_position()) { 699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(next->position()); 700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 701b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 702b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 704b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertAfter(HInstruction* previous) { 705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!previous->IsControlInstruction()); 707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction() || previous->next_ == NULL); 708b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* block = previous->block(); 709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Never insert anything except constants into the start block after finishing 710b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // it. 711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block->IsStartBlock() && block->IsFinished() && !IsConstant()) { 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block->end()->SecondSuccessor() == NULL); 713b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InsertAfter(block->end()->FirstSuccessor()->first()); 714b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 715b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 717b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // If we're inserting after an instruction with side-effects that is 718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // followed by a simulate instruction, we need to insert after the 719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // simulate instruction instead. 720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* next = previous->next_; 7213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (previous->HasObservableSideEffects() && next != NULL) { 722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->IsSimulate()); 723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous = next; 724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next = previous->next_; 725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = previous; 728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(block); 730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous->next_ = this; 731b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (next != NULL) next->previous_ = this; 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block->last() == previous) { 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block->set_last(this); 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && previous->has_position()) { 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(previous->position()); 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::Dominates(HInstruction* other) { 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block() != other->block()) { 743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->Dominates(other->block()); 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Both instructions are in the same basic block. This instruction 746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // should precede the other one in order to dominate it. 747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HInstruction* instr = next(); instr != NULL; instr = instr->next()) { 748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr == other) { 749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 7571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HInstruction::Verify() { 758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that input operands are defined before use. 759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* cur_block = block(); 760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* other_operand = OperandAt(i); 762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (other_operand == NULL) continue; 763b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* other_block = other_operand->block(); 764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur_block == other_block) { 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other_operand->IsPhi()) { 7663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HInstruction* cur = this->previous(); 767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (cur != NULL) { 768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur == other_operand) break; 7693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch cur = cur->previous(); 770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Must reach other operand in the same block! 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(cur == other_operand); 773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 775257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the following assert fires, you may have forgotten an 776257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // AddInstruction. 777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(other_block->Dominates(cur_block)); 778b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that instructions that may have side-effects are followed 782b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // by a simulate instruction. 7833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasObservableSideEffects() && !IsOsrEntry()) { 784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next()->IsSimulate()); 785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 7861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 7871e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Verify that instructions that can be eliminated by GVN have overridden 7881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // HValue::DataEquals. The default implementation is UNREACHABLE. We 7891e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // don't actually care whether DataEquals returns true or false here. 7901e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (CheckFlag(kUseGVN)) DataEquals(this); 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify that all uses are in the graph. 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator use = uses(); !use.Done(); use.Advance()) { 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use.value()->IsInstruction()) { 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HInstruction::cast(use.value())->IsLinked()); 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 798b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::CanDeoptimize() { 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (opcode()) { 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAbnormalExit: 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAccessArgumentsAt: 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAllocate: 807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsElements: 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsLength: 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsObject: 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBlockEntry: 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallNewArray: 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCapturedObject: 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClassOfTestAndBranch: 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareGeneric: 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareHoleAndBranch: 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareMap: 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareNumericAndBranch: 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareObjectEqAndBranch: 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstant: 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kContext: 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDebugBreak: 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeclareGlobals: 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDummyUse: 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnterInlined: 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnvironmentMarker: 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForceRepresentation: 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGoto: 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasInstanceTypeAndBranch: 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInnerAllocatedObject: 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsSmiAndBranch: 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsStringAndBranch: 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsUndetectableAndBranch: 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLeaveInlined: 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFieldByIndex: 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedField: 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadRoot: 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathMinMax: 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kParameter: 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPhi: 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPushArguments: 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kReturn: 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringGetChar: 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreCodeEntry: 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyed: 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedField: 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharCodeAt: 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharFromCode: 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kThisFunction: 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeofIsAndBranch: 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnknownOSRValue: 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUseConst: 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAdd: 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kApplyArguments: 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBitwise: 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBoundsCheck: 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBranch: 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallRuntime: 860958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier case HValue::kCallWithDescriptor: 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kChange: 862014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kCheckArrayBufferNotNeutered: 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckHeapObject: 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckInstanceType: 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMapValue: 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMaps: 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckSmi: 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckValue: 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClampToUint8: 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeoptimize: 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDiv: 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInCacheArray: 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInPrepareMap: 874014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kHasInPrototypeChainAndBranch: 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInvokeFunction: 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadContextSlot: 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFunctionPrototype: 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyed: 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathFloorOfDiv: 880014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kMaybeGrowElements: 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMod: 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMul: 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kOsrEntry: 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPower: 885014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kPrologue: 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kRor: 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSar: 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringSetChar: 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShl: 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShr: 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSimulate: 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStackCheck: 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreContextSlot: 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringAdd: 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCompareAndBranch: 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSub: 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTransitionElementsKind: 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTrapAllocationMemento: 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeof: 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnaryMathOperation: 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kWrapReceiver: 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 909958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const NameOf& v) { 910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << v.value->representation().Mnemonic() << v.value->id(); 911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 913958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HDummyUse::PrintDataTo(std::ostream& os) const { // NOLINT 914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 918958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnvironmentMarker::PrintDataTo( 919958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << (kind() == BIND ? "bind" : "lookup") << " var[" << index() 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 925958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " #" << argument_count(); 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 930958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(first()) << " " << NameOf(second()) << " #" 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << argument_count(); 93369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 93469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 9353b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintTo(std::ostream& os) const { // NOLINT 9363b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (tail_call_mode() == TailCallMode::kAllow) os << "Tail"; 9373b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return HBinaryCall::PrintTo(os); 938014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 939014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 9403b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintDataTo(std::ostream& os) const { // NOLINT 9413b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch HBinaryCall::PrintDataTo(os); 9423b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 9433b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 9453b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 948958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBoundsCheck::PrintDataTo(std::ostream& os) const { // NOLINT 949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()) << " " << NameOf(length()); 950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != NULL && (offset() != 0 || scale() != 0)) { 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " base: (("; 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != index()) { 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()); 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "index"; 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " + " << offset() << ") >> " << scale() << ")"; 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip_check()) os << " [DISABLED]"; 960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBoundsCheck::InferRepresentation(HInferRepresentationPhase* h_infer) { 965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_index = index()->ActualValue(); 967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_length = length()->ActualValue(); 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation index_rep = actual_index->representation(); 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation length_rep = actual_length->representation(); 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index_rep.IsTagged() && actual_index->type().IsSmi()) { 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_rep = Representation::Smi(); 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_rep.IsTagged() && actual_length->type().IsSmi()) { 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_rep = Representation::Smi(); 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = index_rep.generalize(length_rep); 977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.is_more_general_than(Representation::Integer32())) { 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(r, h_infer, "boundscheck"); 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HBoundsCheck::InferRange(Zone* zone) { 985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && length()->HasRange()) { 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = length()->range()->upper() - (allow_equality() ? 0 : 1); 988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = 0; 989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(lower, upper); 991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index()->HasRange()) { 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->Intersect(index()->range()); 993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp result to Smi::kMaxValue. 996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1003958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallWithDescriptor::PrintDataTo( 1004958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); i++) { 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)) << " "; 1007b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 10083b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << "#" << argument_count(); 10093b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 10103b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 10113b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 10123b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 1013b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1014b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1015b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1016958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallNewArray::PrintDataTo(std::ostream& os) const { // NOLINT 1017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << ElementsKindToString(elements_kind()) << " "; 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryCall::PrintDataTo(os); 1019b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1020b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1021b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1022958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallRuntime::PrintDataTo(std::ostream& os) const { // NOLINT 1023014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch os << function()->name << " "; 1024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (save_doubles() == kSaveFPRegs) os << "[save doubles] "; 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "#" << argument_count(); 1026b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1027b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1028b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1029958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HClassOfTestAndBranch::PrintDataTo( 1030958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "class_of_test(" << NameOf(value()) << ", \"" 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << class_name()->ToCString().get() << "\")"; 1033b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1034b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1035b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1036958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HWrapReceiver::PrintDataTo(std::ostream& os) const { // NOLINT 1037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(receiver()) << " " << NameOf(function()); 1038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1041958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAccessArgumentsAt::PrintDataTo( 1042958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(arguments()) << "[" << NameOf(index()) << "], length " 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(length()); 1045b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1048958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HControlInstruction::PrintDataTo( 1049958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " goto ("; 10513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool first_block = true; 10523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (HSuccessorIterator it(this); !it.Done(); it.Advance()) { 1053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!first_block) os << ", "; 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << *it.Current(); 10553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch first_block = false; 10561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1061958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryControlInstruction::PrintDataTo( 1062958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1068958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HReturn::PrintDataTo(std::ostream& os) const { // NOLINT 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " (pop " << NameOf(parameter_count()) 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << " values)"; 1071b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1072b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1073b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBranch::observed_input_representation(int index) { 1075c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & (ToBooleanHint::kNull | ToBooleanHint::kReceiver | 1076c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch ToBooleanHint::kString | ToBooleanHint::kSymbol | 1077c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch ToBooleanHint::kSimdValue)) { 1078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1080c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kUndefined) { 1081c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kHeapNumber) { 1082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1086c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kHeapNumber) { 1087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1089c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (expected_input_types_ & ToBooleanHint::kSmallInteger) { 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Smi(); 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 1093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1095b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBranch::KnownSuccessorBlock(HBasicBlock** block) { 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = this->value(); 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->EmitAtUses()) { 1099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(value->IsConstant()); 1100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->representation().IsDouble()); 1101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value)->BooleanValue() 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : SecondSuccessor(); 1104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 11083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 11093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 11103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1111958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBranch::PrintDataTo(std::ostream& os) const { // NOLINT 1112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryControlInstruction::PrintDataTo(os) << " " 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << expected_input_types(); 11143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 11153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 11163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1117958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " (" << *map().handle() << ")"; 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HControlInstruction::PrintDataTo(os); 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() == 0) { 1121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [true]"; 1122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (known_successor_index() == 1) { 1123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [false]"; 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1126b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1127b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1128b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1129b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochconst char* HUnaryMathOperation::OpName() const { 1130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op()) { 1131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "floor"; 1133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "fround"; 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "round"; 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "abs"; 113913e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 114013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "cos"; 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "log"; 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "exp"; 114513e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 114613e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "sin"; 1147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "sqrt"; 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "pow-half"; 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "clz32"; 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 1156b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1157b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1158b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HUnaryMathOperation::InferRange(Zone* zone) { 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathClz32) return new(zone) Range(0, 32); 1163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && value()->HasRange()) { 1164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathAbs) { 1165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = value()->range()->upper(); 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = value()->range()->lower(); 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool spans_zero = value()->range()->CanBeZero(); 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Math.abs(kMinInt) overflows its representation, on which the 1169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction deopts. Hence clamp it to kMaxInt. 1170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_upper = upper == kMinInt ? kMaxInt : abs(upper); 1171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_lower = lower == kMinInt ? kMaxInt : abs(lower); 1172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = 1173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) Range(spans_zero ? 0 : Min(abs_lower, abs_upper), 1174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Max(abs_lower, abs_upper)); 1175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp Math.abs(Smi::kMinValue) to 1176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi::kMaxValue. 1177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1182b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1185958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryMathOperation::PrintDataTo( 1186958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << OpName() << " " << NameOf(value()); 1188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1190b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1191958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 1192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1196958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HHasInstanceTypeAndBranch::PrintDataTo( 1197958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (from_) { 12003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case FIRST_JS_RECEIVER_TYPE: 1201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == LAST_TYPE) os << " spec_object"; 1202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_REGEXP_TYPE: 1204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_REGEXP_TYPE) os << " reg_exp"; 1205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_ARRAY_TYPE: 1207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_ARRAY_TYPE) os << " array"; 1208b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1209b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_FUNCTION_TYPE: 1210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_FUNCTION_TYPE) os << " function"; 1211b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1213b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1214b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1219958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeofIsAndBranch::PrintDataTo( 1220958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " == " << type_literal()->ToCString().get(); 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1226014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochnamespace { 1227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochString* TypeOfString(HConstant* constant, Isolate* isolate) { 1229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate->heap(); 1230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasNumberValue()) return heap->number_string(); 1231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasStringValue()) return heap->string_string(); 1232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant->GetInstanceType()) { 1233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case ODDBALL_TYPE: { 1234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> unique = constant->GetUnique(); 1235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->true_value()) || 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch unique.IsKnownGlobal(heap->false_value())) { 1237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->boolean_string(); 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->null_value())) { 1240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(unique.IsKnownGlobal(heap->undefined_value())); 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->undefined_string(); 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SYMBOL_TYPE: 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->symbol_string(); 1247014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case SIMD128_VALUE_TYPE: { 1248014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Unique<Map> map = constant->ObjectMap(); 1249014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \ 1250014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (map.IsKnownGlobal(heap->type##_map())) { \ 1251014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return heap->type##_string(); \ 1252014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1253014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch SIMD128_TYPES(SIMD128_TYPE) 1254014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#undef SIMD128_TYPE 1255014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch UNREACHABLE(); 1256014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return nullptr; 1257014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1259bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (constant->IsUndetectable()) return heap->undefined_string(); 1260014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (constant->IsCallable()) return heap->function_string(); 1261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1265014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace 1266014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HTypeofIsAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value()); 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* type_string = TypeOfString(constant, isolate()); 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool same_type = type_literal_.IsKnownGlobal(type_string); 1273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = same_type ? FirstSuccessor() : SecondSuccessor(); 1274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (value()->representation().IsSpecialization()) { 1276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool number_type = 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type_literal_.IsKnownGlobal(isolate()->heap()->number_string()); 1278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = number_type ? FirstSuccessor() : SecondSuccessor(); 1279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1283b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1286958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMapValue::PrintDataTo(std::ostream& os) const { // NOLINT 1287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << NameOf(map()); 12883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMapValue::Canonicalize() { 1292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map()->IsConstant()) { 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_map = HConstant::cast(map()); 1294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HCheckMaps::CreateAndInsertAfter( 1295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->zone(), value(), c_map->MapValue(), 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_map->HasStableMapValue(), this); 1297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1302958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInPrepareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()); 13043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1307958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInCacheArray::PrintDataTo(std::ostream& os) const { // NOLINT 1308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()) << " " << NameOf(map()) << "[" << idx_ 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 13103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1313958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadFieldByIndex::PrintDataTo( 1314958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << " " << NameOf(index()); 13163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchLeftIsOnes(HValue* l, HValue* r, HValue** negated) { 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!l->EqualsInteger32Constant(~0)) return false; 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *negated = r; 1322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 13233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchNegationViaXor(HValue* instr, HValue** negated) { 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsBitwise()) return false; 1328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBitwise* b = HBitwise::cast(instr); 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (b->op() == Token::BIT_XOR) && 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (MatchLeftIsOnes(b->left(), b->right(), negated) || 1331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchLeftIsOnes(b->right(), b->left(), negated)); 13323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchDoubleNegation(HValue* instr, HValue** arg) { 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* negated; 1337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MatchNegationViaXor(instr, &negated) && 1338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchNegationViaXor(negated, arg); 13393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13423ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HBitwise::Canonicalize() { 1343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsSmiOrInteger32()) return this; 13443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If x is an int32, then x & -1 == x, x | 0 == x and x ^ 0 == x. 13453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t nop_constant = (op() == Token::BIT_AND) ? -1 : 0; 1346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(nop_constant) && 1347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !right()->CheckFlag(kUint32)) { 13483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return right(); 13493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right()->EqualsInteger32Constant(nop_constant) && 1351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->CheckFlag(kUint32)) { 13523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return left(); 13533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimize double negation, a common pattern used for ToInt32(x). 1355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* arg; 1356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MatchDoubleNegation(this, &arg) && !arg->CheckFlag(kUint32)) { 1357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg; 1358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 13603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1363014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch// static 1364014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HAdd::New(Isolate* isolate, Zone* zone, HValue* context, 1365109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right, 1366014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ExternalAddType external_add_type) { 1367014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // For everything else, you should use the other factory method without 1368014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // ExternalAddType. 1369014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(external_add_type, AddOfExternalAndTagged); 1370109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HAdd(context, left, right, external_add_type); 1371014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 1372014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1373014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RepresentationFromInputs() { 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::External(); 1378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RepresentationFromInputs(); 1380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RequiredInputRepresentation(int index) { 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index == 2) { 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1387014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (external_add_type_ == AddOfExternalAndTagged) { 1388014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Tagged(); 1389014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 1390014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Integer32(); 1391014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RequiredInputRepresentation(index); 1395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsIdentityOperation(HValue* arg1, HValue* arg2, int32_t identity) { 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg1->representation().IsSpecialization() && 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch arg2->EqualsInteger32Constant(identity); 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 14043ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HAdd::Canonicalize() { 1405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adding 0 is an identity operation except in case of -0: -0 + 0 = +0 1406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0) && 1407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Left could be -0. 1408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return left(); 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 0) && 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Right could be -0. 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return right(); 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14183ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HSub::Canonicalize() { 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0)) return left(); 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMul::Canonicalize() { 1425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 1426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 1)) return right(); 1427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HMul::MulMinusOne() { 1432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(-1) || 1433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->EqualsInteger32Constant(-1)) { 1434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMod::Canonicalize() { 1442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HDiv::Canonicalize() { 1447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 14483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14523ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HChange::Canonicalize() { 14533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return (from().Equals(to())) ? value() : this; 14543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14573ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HWrapReceiver::Canonicalize() { 14583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasNoUses()) return NULL; 1459014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (receiver()->type().IsJSReceiver()) { 14603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return receiver(); 14613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1466958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeof::PrintDataTo(std::ostream& os) const { // NOLINT 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1468b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1469b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1470b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1471014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HForceRepresentation::New(Isolate* isolate, Zone* zone, 1472014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 1473014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation representation) { 1474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value->IsConstant()) { 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c = HConstant::cast(value); 1476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c = c->CopyToRepresentation(representation, zone); 1477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c != NULL) return c; 1478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HForceRepresentation(value, representation); 1480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1483958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForceRepresentation::PrintDataTo( 1484958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << representation().Mnemonic() << " " << NameOf(value()); 1486589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 1487589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1488589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1489958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HChange::PrintDataTo(std::ostream& os) const { // NOLINT 1490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUnaryOperation::PrintDataTo(os); 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << from().Mnemonic() << " to " << to().Mnemonic(); 1492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToSmi()) os << " truncating-smi"; 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToInt32()) os << " truncating-int32"; 1495c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (CanTruncateToNumber()) os << " truncating-number"; 1496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 1497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HUnaryMathOperation::Canonicalize() { 1502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathRound || op() == kMathFloor) { 1503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* val = value(); 1504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->IsChange()) val = HChange::cast(val)->value(); 1505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().IsSmiOrInteger32()) { 1506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().Equals(representation())) return val; 1507c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Prepend(new (block()->zone()) 1508c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HChange(val, representation(), false, false, true)); 1509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15113b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (op() == kMathFloor && representation().IsSmiOrInteger32() && 15123b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->IsDiv() && value()->HasOneUse()) { 1513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = HDiv::cast(value()); 1514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left = hdiv->left(); 1516014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (left->representation().IsInteger32() && !left->CheckFlag(kUint32)) { 1517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1518014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (left->IsChange() && HChange::cast(left)->from().IsInteger32() && 1519014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(left)->value()->CheckFlag(kUint32)) { 1520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = HChange::cast(left)->value(); 1522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(1).IsSmiOrInteger32()) { 1523c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch left = Prepend(new (block()->zone()) HChange( 1524c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch left, Representation::Integer32(), false, false, true)); 1525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right = hdiv->right(); 1530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsInteger32Constant()) { 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(HConstant::cast(right)->CopyToRepresentation( 1532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), right->block()->zone())); 1533014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (right->representation().IsInteger32() && 1534014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !right->CheckFlag(kUint32)) { 1535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (right->IsChange() && 1537014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HChange::cast(right)->from().IsInteger32() && 1538014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(right)->value()->CheckFlag(kUint32)) { 1539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = HChange::cast(right)->value(); 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(2).IsSmiOrInteger32()) { 1542c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch right = Prepend(new (block()->zone()) HChange( 1543c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch right, Representation::Integer32(), false, false, true)); 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(HMathFloorOfDiv::New( 1549014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->zone(), context(), left, right)); 1550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckInstanceType::Canonicalize() { 1556014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if ((check_ == IS_JS_RECEIVER && value()->type().IsJSReceiver()) || 1557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) || 1558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_STRING && value()->type().IsString())) { 1559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_ == IS_INTERNALIZED_STRING && value()->IsConstant()) { 1563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HConstant::cast(value())->HasInternalizedStringValue()) { 1564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 15683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 15693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 15703fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1571257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckInterval(InstanceType* first, 1572257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType* last) { 1573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_interval_check()); 1574257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1575014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: 1576014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = FIRST_JS_RECEIVER_TYPE; 1577014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *last = LAST_JS_RECEIVER_TYPE; 1578257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1579257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_JS_ARRAY: 1580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *first = *last = JS_ARRAY_TYPE; 1581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 158213e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case IS_JS_FUNCTION: 158313e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch *first = *last = JS_FUNCTION_TYPE; 158413e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return; 1585014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1586014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = *last = JS_DATE_TYPE; 1587014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return; 1588257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1589257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1590257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1591257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 1592257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1593257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1594257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckMaskAndTag(uint8_t* mask, uint8_t* tag) { 1595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!is_interval_check()); 1596257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1597257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_STRING: 1598257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *mask = kIsNotStringMask; 1599257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *tag = kStringTag; 1600257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *mask = kIsNotStringMask | kIsNotInternalizedMask; 1603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *tag = kInternalizedTag; 1604257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1605257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1606257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1607257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1611958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMaps::PrintDataTo(std::ostream& os) const { // NOLINT 1612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " [" << *maps()->at(0).handle(); 1613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 1614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 1615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 1617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsStabilityCheck()) os << "(stability-check)"; 1618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMaps::Canonicalize() { 1623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsStabilityCheck() && maps_are_stable() && value()->IsConstant()) { 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_value = HConstant::cast(value()); 1625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->HasObjectMap()) { 1626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps()->size(); ++i) { 1627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->ObjectMap() == maps()->at(i)) { 1628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps()->size() > 1) { 1629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_maps(new(block()->graph()->zone()) UniqueSet<Map>( 1630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch maps()->at(i), block()->graph()->zone())); 1631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkAsStabilityCheck(); 1633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 16373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1642958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckValue::PrintDataTo(std::ostream& os) const { // NOLINT 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << Brief(*object().handle()); 1644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1646b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckValue::Canonicalize() { 1648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (value()->IsConstant() && 1649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(value())->EqualsUnique(object_)) ? NULL : this; 1650b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1651b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1652b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochconst char* HCheckInstanceType::GetCheckName() const { 16543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (check_) { 1655014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: return "object"; 16563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_JS_ARRAY: return "array"; 165713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case IS_JS_FUNCTION: 165813e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return "function"; 1659014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1660014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return "date"; 16613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_STRING: return "string"; 1662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: return "internalized_string"; 16633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 16643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 16653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ""; 16663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 16673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1669958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckInstanceType::PrintDataTo( 1670958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << GetCheckName() << " "; 1672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryOperation::PrintDataTo(os); 1673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1676958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnknownOSRValue::PrintDataTo(std::ostream& os) const { // NOLINT 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* type = "expression"; 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_local_index(index_)) type = "local"; 1679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_special_index(index_)) type = "special"; 1680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_parameter_index(index_)) type = "parameter"; 1681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << type << " @ " << index_; 1682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16853ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HValue::InferRange(Zone* zone) { 1686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result; 1687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() || type().IsSmi()) { 1688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(Smi::kMinValue, Smi::kMaxValue); 1689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 1690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(); 1692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32)); 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(jkummerow): The range cannot be minus zero when the upper type 1694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // bound is Integer32. 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 169669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 169769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 169869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 169969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 17003ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HChange::InferRange(Zone* zone) { 170169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* input_range = value()->range(); 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsInteger32() && !value()->CheckFlag(HInstruction::kUint32) && 1703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsSmi() || 1704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsTagged() && 1705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange()))) { 170769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch set_type(HType::Smi()); 1708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearChangesFlag(kNewSpacePromotion); 1709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmiOrTagged() && 1711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange() && 1713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!SmiValuesAre32Bits() || 1714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !value()->CheckFlag(HValue::kUint32) || 1715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->upper() != kMaxInt)) { 1716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The Range class can't express upper bounds in the (kMaxInt, kMaxUint32] 1717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // interval, so we treat kMaxInt as a sentinel for this entire interval. 1718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 172069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (input_range != NULL) 17213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? input_range->Copy(zone) 17223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : HValue::InferRange(zone); 1723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!to().IsSmiOrInteger32() || 1724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(CheckFlag(kAllUsesTruncatingToInt32) || 1725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckFlag(kAllUsesTruncatingToSmi))); 1726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmi()) result->ClampToSmi(); 172769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 1728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17313ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HConstant::InferRange(Zone* zone) { 1732958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 17333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(int32_value_, int32_value_); 1734b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result->set_can_be_minus_zero(false); 1735b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1736b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 17373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1738b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1739b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1741014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochSourcePosition HPhi::position() const { return block()->first()->position(); } 1742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17443ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HPhi::InferRange(Zone* zone) { 1745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block()->IsLoopHeader()) { 1748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* range = r.IsSmi() 1749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? new(zone) Range(Smi::kMinValue, Smi::kMaxValue) 1750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : new(zone) Range(kMinInt, kMaxInt); 1751b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* range = OperandAt(0)->range()->Copy(zone); 1754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 1; i < OperandCount(); ++i) { 1755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range->Union(OperandAt(i)->range()); 1756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1757b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1762b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1763b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17653ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HAdd::InferRange(Zone* zone) { 1766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->AddAndCheckOverflow(r, b) || 1772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeMinusZero()); 1779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1782b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1783b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1784b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17863ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSub::InferRange(Zone* zone) { 1787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->SubAndCheckOverflow(r, b) || 1793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeZero()); 1800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18073ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMul::InferRange(Zone* zone) { 1808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 18123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->MulAndCheckOverflow(r, b) || 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (((r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) && 1816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MulMinusOne())) { 1817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Truncated int multiplication is too precise and therefore not the 1818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // same as converting to Double and back. 1819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle truncated integer multiplication by -1 special. 1820b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ((a->CanBeZero() && b->CanBeNegative()) || 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeNegative() && b->CanBeZero()))); 1826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1829b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1830b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1831b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1832b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18333ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HDiv::InferRange(Zone* zone) { 1834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(); 1838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathFloorOfDiv::InferRange(Zone* zone) { 1856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsInteger32()) { 1857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 18593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(); 1860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt)) { 1864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kLeftCanBeMinInt); 1865b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1866b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1869b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1870b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBePositive()) { 1872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBePositive); 1873b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1874b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1881b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1882b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1883b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1886b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1887b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1888b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns the absolute value of its argument minus one, avoiding undefined 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// behavior at kMinInt. 1891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AbsMinus1(int32_t a) { return a < 0 ? -(a + 1) : (a - 1); } 1892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 18943ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMod::InferRange(Zone* zone) { 1895b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1896b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The magnitude of the modulus is bounded by the right operand. 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t positive_bound = Max(AbsMinus1(b->lower()), AbsMinus1(b->upper())); 1901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The result of the modulo operation has the sign of its left operand. 1903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool left_can_be_negative = a->CanBeMinusZero() || a->CanBeNegative(); 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(left_can_be_negative ? -positive_bound : 0, 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBePositive() ? positive_bound : 0); 1906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_can_be_negative); 1909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kCanOverflow); 1916b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1919b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(HValue::kCanBeDivByZero); 1920b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1921b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1922b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 19233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1924b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1925b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1926b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1927b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathMinMax::InferRange(Zone* zone) { 1929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmiOrInteger32()) { 1930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* res = a->Copy(zone); 1933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation_ == kMathMax) { 1934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMax(b); 1935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(operation_ == kMathMin); 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMin(b); 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return res; 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPushArguments::AddInput(HValue* value) { 1947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(OperandCount() - 1, value); 1949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1952958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HPhi::PrintTo(std::ostream& os) const { // NOLINT 1953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "["; 1954b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 1955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << NameOf(OperandAt(i)) << " "; 1956b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1957014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return os << " uses" << UseCount() 1958014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch << representation_from_indirect_uses().Mnemonic() << " " 1959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << TypeOf(this) << "]"; 1960b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1962b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddInput(HValue* value) { 1964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1965b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetOperandAt(OperandCount() - 1, value); 1966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Mark phis that may have 'arguments' directly or indirectly as an operand. 1967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!CheckFlag(kIsArguments) && value->CheckFlag(kIsArguments)) { 1968b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetFlag(kIsArguments); 1969b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1970b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 197344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockbool HPhi::HasRealUses() { 1974257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 1975257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!it.value()->IsPhi()) return true; 197644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 197744f0eee88ff00398ff7f715fab053374d808c90dSteve Block return false; 197844f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 197944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 198044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1981e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHValue* HPhi::GetRedundantReplacement() { 1982b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* candidate = NULL; 1983b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 1984b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int position = 0; 1985b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count && candidate == NULL) { 1986b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this) candidate = current; 1988b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1989b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count) { 1990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this && current != candidate) return NULL; 1992b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(candidate != this); 1994b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return candidate; 1995b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1996b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1997b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1998b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::DeleteFromGraph() { 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 2000b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch block()->RemovePhi(this); 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() == NULL); 2002b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2003b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2004b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2005b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::InitRealUses(int phi_id) { 2006b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Initialize real uses. 2007b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch phi_id_ = phi_id; 2008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute a conservative approximation of truncating uses before inferring 2009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representations. The proper, exact computation will be done later, when 2010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inserting representation changes. 2011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToSmi); 2012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToInt32); 2013257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2014257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = it.value(); 2015257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!value->IsPhi()) { 2016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = value->observed_input_representation(it.index()); 2017014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses_ = 2018014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses().generalize(rep); 2019014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (rep.IsSmi() || rep.IsInteger32() || rep.IsDouble()) { 2020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch has_type_feedback_from_uses_ = true; 2021014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2022014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d Phi is used by real #%d %s as %s\n", 2025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), value->id(), value->Mnemonic(), rep.Mnemonic()); 2026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsSimulate()) { 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToSmi)) { 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToSmi); 2030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToInt32)) { 2032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToInt32); 2033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2035b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2036b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddNonPhiUsesFrom(HPhi* other) { 2041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2042014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF( 2043014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "generalizing use representation '%s' of #%d Phi " 2044014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "with uses of #%d Phi '%s'\n", 2045014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().Mnemonic(), id(), other->id(), 2046014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses().Mnemonic()); 2047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2048b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2049014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses_ = 2050014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().generalize( 2051014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses()); 2052b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2053b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2054b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::MergeWith(ZoneList<HSimulate*>* list) { 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!list->is_empty()) { 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSimulate* from = list->RemoveLast(); 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ZoneList<HValue*>* from_values = &from->values_; 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < from_values->length(); ++i) { 2060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from->HasAssignedIndexAt(i)) { 2061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = from->GetAssignedIndexAt(i); 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasValueForIndex(index)) continue; 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddAssignedValue(index, from_values->at(i)); 20643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 2065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) { 2066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_--; 2067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddPushedValue(from_values->at(i)); 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2070b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2071b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_ += from->pop_count_; 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch from->DeleteAndReplaceWith(NULL); 2074b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2075b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2076b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2077b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2078958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HSimulate::PrintDataTo(std::ostream& os) const { // NOLINT 2079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "id=" << ast_id().ToInt(); 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " pop " << pop_count_; 2081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (values_.length() > 0) { 2082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " /"; 2083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values_.length() - 1; i >= 0; --i) { 2084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " var[" << GetAssignedIndexAt(i) << "] = "; 2086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " push "; 2088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(values_[i]); 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << ","; 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 20923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 20943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 20953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 20963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::ReplayEnvironment(HEnvironment* env) { 2098958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (is_done_with_replay()) return; 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->set_ast_id(ast_id()); 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Drop(pop_count()); 2102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values()->length() - 1; i >= 0; --i) { 2103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values()->at(i); 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Bind(GetAssignedIndexAt(i), value); 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Push(value); 2108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2110958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier set_done_with_replay(); 2111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2112b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2113b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic void ReplayEnvironmentNested(const ZoneList<HValue*>* values, 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCapturedObject* other) { 2116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < values->length(); ++i) { 2117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values->at(i); 2118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->IsCapturedObject()) { 2119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HCapturedObject::cast(value)->capture_id() == other->capture_id()) { 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch values->at(i) = other; 2121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(HCapturedObject::cast(value)->values(), other); 2123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Replay captured objects by replacing all captured objects with the 2130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// same capture id in the current and all outer environments. 2131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCapturedObject::ReplayEnvironment(HEnvironment* env) { 2132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (env != NULL) { 2134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(env->values(), this); 2135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env = env->outer(); 2136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2140958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCapturedObject::PrintDataTo(std::ostream& os) const { // NOLINT 2141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "#" << capture_id() << " "; 2142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HDematerializedObject::PrintDataTo(os); 2143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HEnterInlined::RegisterReturnTarget(HBasicBlock* return_target, 2147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone) { 2148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(return_target->IsInlineReturnTarget()); 2149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_targets_.Add(return_target, zone); 2150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2153958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnterInlined::PrintDataTo(std::ostream& os) const { // NOLINT 21543b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << function()->debug_name()->ToCString().get(); 21553b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 21563b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 21573b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 21583b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 2159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsInteger32(double value) { 2163958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (value >= std::numeric_limits<int32_t>::min() && 2164958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier value <= std::numeric_limits<int32_t>::max()) { 2165958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double roundtrip_value = static_cast<double>(static_cast<int32_t>(value)); 2166958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return bit_cast<int64_t>(roundtrip_value) == bit_cast<int64_t>(value); 2167958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2168958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return false; 2169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2172014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHConstant::HConstant(Special special) 2173014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : HTemplateInstruction<0>(HType::TaggedNumber()), 2174014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_(Handle<Object>::null()), 2175014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_map_(Handle<Map>::null()), 2176014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_(HasDoubleValueField::encode(true) | 2177014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)), 2178014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_value_(0) { 2179014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(kHoleNaN, special); 2180014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch std::memcpy(&double_value_, &kHoleNanInt64, sizeof(double_value_)); 2181014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Initialize(Representation::Double()); 2182014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 2183014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2184014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(Handle<Object> object, Representation r) 2186958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::FromValue(object)), 2187958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>::CreateUninitialized(object)), 2188958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2189014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_( 2190014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasStableMapValueField::encode(false) | 2191014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasDoubleValueField::encode(false) | 2193014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasExternalReferenceValueField::encode(false) | 2194014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsNotInNewSpaceField::encode(true) | 2195014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BooleanValueField::encode(object->BooleanValue()) | 2196014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsUndetectableField::encode(false) | IsCallableField::encode(false) | 2197014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)) { 2198f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (object->IsNumber()) { 2199f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double n = object->Number(); 2200f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bool has_int32_value = IsInteger32(n); 2201f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasInt32ValueField::update(bit_field_, has_int32_value); 2202f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch int32_value_ = DoubleToInt32(n); 2203f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasSmiValueField::update( 2204f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_, has_int32_value && Smi::IsValid(int32_value_)); 2205f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (std::isnan(n)) { 2206f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = std::numeric_limits<double>::quiet_NaN(); 2207f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Canonicalize object with NaN value. 2208f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch DCHECK(object->IsHeapObject()); // NaN can't be a Smi. 2209f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Isolate* isolate = HeapObject::cast(*object)->GetIsolate(); 2210f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object = isolate->factory()->nan_value(); 2211f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object_ = Unique<Object>::CreateUninitialized(object); 2212f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 2213f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = n; 2214f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Canonicalize object with -0.0 value. 2215f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (bit_cast<int64_t>(n) == bit_cast<int64_t>(-0.0)) { 2216f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch DCHECK(object->IsHeapObject()); // -0.0 can't be a Smi. 2217f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Isolate* isolate = HeapObject::cast(*object)->GetIsolate(); 2218f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object = isolate->factory()->minus_zero_value(); 2219f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch object_ = Unique<Object>::CreateUninitialized(object); 2220f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2221f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2222f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch bit_field_ = HasDoubleValueField::update(bit_field_, true); 2223f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsHeapObject()) { 2225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); 2226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = heap_object->GetIsolate(); 2227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map(heap_object->map(), isolate); 2228958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update( 2229958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, !isolate->heap()->InNewSpace(*object)); 2230958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = InstanceTypeField::update(bit_field_, map->instance_type()); 2231958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = 2232958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::update(bit_field_, map->is_undetectable()); 2233014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_ = IsCallableField::update(bit_field_, map->is_callable()); 2234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map->is_stable()) object_map_ = Unique<Map>::CreateImmovable(map); 2235958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasStableMapValueField::update( 2236958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, 2237958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasMapValue() && Handle<Map>::cast(heap_object)->is_stable()); 2238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2244958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(Unique<Object> object, Unique<Map> object_map, 2245958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool has_stable_map_value, Representation r, HType type, 2246958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, bool boolean_value, 2247958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_undetectable, InstanceType instance_type) 2248958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(type), 2249958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(object), 2250958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(object_map), 2251958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(has_stable_map_value) | 2252958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | 2253958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(false) | 2254958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2255958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2256958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2257958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(boolean_value) | 2258958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(is_undetectable) | 2259958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(instance_type)) { 2260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object.handle().is_null()); 2261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!type.IsTaggedNumber() || type.IsNone()); 2262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2266958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(int32_t integer_value, Representation r, 2267958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2268958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2269958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2270958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2271958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(Smi::IsValid(integer_value)) | 2272958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(true) | 2273958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2274958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2275958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2276958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(integer_value != 0) | 2277958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2278958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2279958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int32_value_(integer_value), 2280958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double_value_(FastI2D(integer_value)) { 2281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2284958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2289958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(double double_value, Representation r, 2290958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2291958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2292958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2293958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2294958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(IsInteger32(double_value)) | 2295958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2296958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2297958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2298958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(double_value != 0 && 2299958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier !std::isnan(double_value)) | 2300958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2301958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2302f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch int32_value_(DoubleToInt32(double_value)) { 2303958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasSmiValueField::update( 2304958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, HasInteger32Value() && Smi::IsValid(int32_value_)); 2305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2308958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2310f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (std::isnan(double_value)) { 2311f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = std::numeric_limits<double>::quiet_NaN(); 2312f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } else { 2313f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch double_value_ = double_value; 2314f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 2315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(ExternalReference reference) 2320958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::Any()), 2321958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>(Handle<Object>::null())), 2322958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2323958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_( 2324958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasStableMapValueField::encode(false) | 2325958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2326958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2327958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(true) | 2328958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(true) | BooleanValueField::encode(true) | 2329958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2330958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2331958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier external_reference_value_(reference) { 2332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(Representation::External()); 2333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HConstant::Initialize(Representation r) { 2337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsNone()) { 2338958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasSmiValue() && SmiValuesAre31Bits()) { 2339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Smi(); 2340958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasInteger32Value()) { 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 2342958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Double(); 2344958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::External(); 2346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = object_.handle(); 2348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsJSObject()) { 2349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to eagerly migrate JSObjects that have deprecated maps. 2350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> js_object = Handle<JSObject>::cast(object); 2351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (js_object->map()->is_deprecated()) { 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::TryMigrateInstance(js_object); 2353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Tagged(); 2356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 2359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we have an existing handle, zap it, because it might be a heap 2360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // number which we must not re-use when copying this HConstant to 2361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Tagged representation later, because having Smi representation now 2362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // could cause heap object checks not to get emitted. 2363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_ = Unique<Object>(Handle<Object>::null()); 2364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2365014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (r.IsSmiOrInteger32() && object_.handle().is_null()) { 2366958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // If it's not a heap object, it can't be in new space. 2367958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update(bit_field_, true); 2368958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_representation(r); 2370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kUseGVN); 2371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::ImmortalImmovable() const { 2375958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2378958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSpecialDouble()) { 2380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2384958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate()->heap(); 2390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->minus_zero_value())); 2391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->nan_value())); 2392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return 2393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define IMMORTAL_IMMOVABLE_ROOT(name) \ 2394958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_.IsKnownGlobal(heap->root(Heap::k##name##RootIndex)) || 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IMMORTAL_IMMOVABLE_ROOT_LIST(IMMORTAL_IMMOVABLE_ROOT) 2396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef IMMORTAL_IMMOVABLE_ROOT 2397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define INTERNALIZED_STRING(name, value) \ 2398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name()) || 2399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INTERNALIZED_STRING_LIST(INTERNALIZED_STRING) 2400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef INTERNALIZED_STRING 2401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define STRING_TYPE(NAME, size, name, Name) \ 2402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name##_map()) || 2403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STRING_TYPE_LIST(STRING_TYPE) 2404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef STRING_TYPE 2405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false; 2406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::EmitAtUses() { 2410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 2411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block()->graph()->has_osr() && 2412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->IsStandardConstant(this)) { 2413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return true; 2416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsCell()) return false; 2417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsDouble()) return false; 2418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsExternal()) return false; 2419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2420b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2421b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant* HConstant::CopyToRepresentation(Representation r, Zone* zone) const { 2424958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsSmi() && !HasSmiValue()) return NULL; 2425958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsInteger32() && !HasInteger32Value()) return NULL; 2426958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsDouble() && !HasDoubleValue()) return NULL; 2427958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsExternal() && !HasExternalReferenceValue()) return NULL; 2428958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2429958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(int32_value_, r, NotInNewSpace(), object_); 2430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2431958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2432958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(double_value_, r, NotInNewSpace(), object_); 2433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2434958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(external_reference_value_); 2436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2438958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(object_, object_map_, HasStableMapValue(), r, 2439958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier type_, NotInNewSpace(), BooleanValue(), 2440958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectable(), GetInstanceType()); 2441b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMaybe<HConstant*> HConstant::CopyToTruncatedInt32(Zone* zone) { 2445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2446958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2447958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) HConstant(int32_value_, Representation::Integer32(), 2448958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2449958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2450958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) 2451958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HConstant(DoubleToInt32(double_value_), Representation::Integer32(), 2452958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2454014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2458014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochMaybe<HConstant*> HConstant::CopyToTruncatedNumber(Isolate* isolate, 2459014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Zone* zone) { 2460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2461014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> handle = this->handle(isolate); 2462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (handle->IsBoolean()) { 2463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = handle->BooleanValue() ? 2464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) HConstant(1) : new(zone) HConstant(0); 246513e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch } else if (handle->IsUndefined(isolate)) { 2466014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch res = new (zone) HConstant(std::numeric_limits<double>::quiet_NaN()); 246713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch } else if (handle->IsNull(isolate)) { 2468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(0); 2469109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } else if (handle->IsString()) { 2470109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch res = new(zone) HConstant(String::ToNumber(Handle<String>::cast(handle))); 24718b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 2472014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2476958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HConstant::PrintDataTo(std::ostream& os) const { // NOLINT 2477958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << int32_value_ << " "; 2479958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << double_value_ << " "; 2481958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << reinterpret_cast<void*>(external_reference_value_.address()) << " "; 2483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The handle() method is silently and lazily mutating the object. 2485014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> h = const_cast<HConstant*>(this)->handle(isolate()); 2486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Brief(*h) << " "; 2487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasStableMapValue()) os << "[stable-map] "; 2488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasObjectMap()) os << "[map " << *ObjectMap().handle() << "] "; 2489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2490958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (!NotInNewSpace()) os << "[new space] "; 2491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2495958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 2496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCanOverflow)) os << " !"; 2498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 2499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::InferRepresentation(HInferRepresentationPhase* h_infer) { 2504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 2509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 2510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 2511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.IsNone()) { 2514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 2515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 2516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromOutput(); 2518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "output"); 2519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromInputs() { 2524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Determine the worst case of observed input representations and 2525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the currently assumed output representation. 2526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i <= 2; ++i) { 2528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_input_representation(i)); 2529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 2531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 2538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBinaryOperation::IgnoreObservedOutputRepresentation( 2542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation current_rep) { 2543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ((current_rep.IsInteger32() && CheckUsesForFlag(kTruncatingToInt32)) || 2544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (current_rep.IsSmi() && CheckUsesForFlag(kTruncatingToSmi))) && 2545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mul in Integer32 mode would be too precise. 2546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!this->IsMul() || HMul::cast(this)->MulMinusOne()); 25478b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 25488b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 2549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromOutput() { 2551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Consider observed output representation, but ignore it if it's Double, 2553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this instruction is not a division, and all its uses are truncating 2554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to Integer32. 2555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.is_more_general_than(rep) && 2556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !IgnoreObservedOutputRepresentation(rep)) { 2557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return observed_output_representation_; 2558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 2560b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2561b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::AssumeRepresentation(Representation r) { 2564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(1, r); 2565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(2, r); 2566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue::AssumeRepresentation(r); 2567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2568b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2569b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HMathMinMax::InferRepresentation(HInferRepresentationPhase* h_infer) { 2571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not care about uses. 2575b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2576b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25783ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HBitwise::InferRange(Zone* zone) { 2579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == Token::BIT_XOR) { 2580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->HasRange() && right()->HasRange()) { 2581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The maximum value has the high bit, and all bits below, set: 2582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (1 << high) - 1. 2583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the range can be negative, the minimum int is a negative number with 2584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the high bit, and all bits below, unset: 2585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -(1 << high). 2586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If it cannot be negative, conservatively choose 0 as minimum int. 2587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_upper = left()->range()->upper(); 2588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_lower = left()->range()->lower(); 2589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_upper = right()->range()->upper(); 2590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_lower = right()->range()->lower(); 2591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_upper < 0) left_upper = ~left_upper; 2593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_lower < 0) left_lower = ~left_lower; 2594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_upper < 0) right_upper = ~right_upper; 2595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_lower < 0) right_lower = ~right_lower; 2596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int high = MostSignificantBit( 2598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<uint32_t>( 2599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_upper | left_lower | right_upper | right_lower)); 2600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t limit = 1; 2602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit <<= high; 2603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t min = (left()->range()->CanBeNegative() || 2604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->range()->CanBeNegative()) 2605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? static_cast<int32_t>(-limit) : 0; 2606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(min, static_cast<int32_t>(limit - 1)); 2607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 26123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int32_t kDefaultMask = static_cast<int32_t>(0xffffffff); 2613e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t left_mask = (left()->range() != NULL) 2614e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? left()->range()->Mask() 26153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 2616e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t right_mask = (right()->range() != NULL) 2617e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? right()->range()->Mask() 26183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 26193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result_mask = (op() == Token::BIT_AND) 26203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left_mask & right_mask 26213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : left_mask | right_mask; 2622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result_mask >= 0) return new(zone) Range(0, result_mask); 2623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26303ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSar::InferRange(Zone* zone) { 2631b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2632b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2634e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 26353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2637e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Sar(c->Integer32Value()); 2638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 26413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2643b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26453ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShr::InferRange(Zone* zone) { 264669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (right()->IsConstant()) { 264769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HConstant* c = HConstant::cast(right()); 264869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (c->HasInteger32Value()) { 264969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch int shift_count = c->Integer32Value() & 0x1f; 265069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (left()->range()->CanBeNegative()) { 265169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Only compute bounds if the result always fits into an int32. 265269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return (shift_count >= 1) 26533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? new(zone) Range(0, 26543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<uint32_t>(0xffffffff) >> shift_count) 26553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 265669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else { 265769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // For positive inputs we can use the >> operator. 265869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (left()->range() != NULL) 26593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 266169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->Sar(c->Integer32Value()); 266269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 266369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 266469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 266569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 26663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 266769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 266869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 266969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 26703ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShl::InferRange(Zone* zone) { 2671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2674e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 26753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2677e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Shl(c->Integer32Value()); 2678b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2679b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2680b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 26813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadNamedField::InferRange(Zone* zone) { 2686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger8()) { 2687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger8()) { 2690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger16()) { 2693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger16()) { 2696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 2697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().IsStringLength()) { 2699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(0, String::kMaxLength); 2700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 2702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadKeyed::InferRange(Zone* zone) { 27063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (elements_kind()) { 2707014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT8_ELEMENTS: 2708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2709014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_ELEMENTS: 2710014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_CLAMPED_ELEMENTS: 2711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2712014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT16_ELEMENTS: 2713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2714014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT16_ELEMENTS: 2715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 27163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 27173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 27183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 27203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2722958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareGeneric::PrintDataTo(std::ostream& os) const { // NOLINT 2723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryOperation::PrintDataTo(os); 2725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2728958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringCompareAndBranch::PrintDataTo( 2729958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2735958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareNumericAndBranch::PrintDataTo( 2736958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " " << NameOf(left()) << " " << NameOf(right()); 2738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2742958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareObjectEqAndBranch::PrintDataTo( 2743958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareObjectEqAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left()->IsConstant() && right()->IsConstant()) { 2755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(left())->DataEquals(HConstant::cast(right())) 2756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsStringAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->HasStringValue() 2771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsString()) { 2775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = FirstSuccessor(); 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsSmi() || 2779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsNull() || 2780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsBoolean() || 2781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsUndefined() || 2782014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch value()->type().IsJSReceiver()) { 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SecondSuccessor(); 2784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsUndetectableAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->IsUndetectable() 2794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 27973b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsNull() || value()->type().IsUndefined()) { 27983b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = FirstSuccessor(); 27993b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 28003b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 28013b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsBoolean() || 28023b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsSmi() || 28033b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsString() || 28043b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsJSReceiver()) { 28053b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = SecondSuccessor(); 28063b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 28073b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 2808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HHasInstanceTypeAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType type = HConstant::cast(value())->GetInstanceType(); 2816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (from_ <= type) && (type <= to_) 2817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareHoleAndBranch::InferRepresentation( 2826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(value()->representation()); 2828b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2829b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2830b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareNumericAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left() == right() && 2833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left()->representation().IsSmiOrInteger32()) { 2834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (token() == Token::EQ || 2835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::EQ_STRICT || 2836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::LTE || 2837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::GTE) 2838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 28433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 28443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2846958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HGoto::PrintDataTo(std::ostream& os) const { // NOLINT 2847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << *SuccessorAt(0); 28483fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 28493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 28503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareNumericAndBranch::InferRepresentation( 2852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_left = observed_input_representation(0); 2856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_right = observed_input_representation(1); 2857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 2859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_left); 2860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_right); 2861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone() || rep.IsSmiOrInteger32()) { 2862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Double(); 2866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 28693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // According to the ES5 spec (11.9.3, 11.8.5), Equality comparisons (==, === 28703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // and !=) have special handling of undefined, e.g. undefined == undefined 28713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // is 'true'. Relational comparisons have a different semantic, first 28723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // calling ToPrimitive() on their arguments. The standard Crankshaft 2873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // tagged-to-double conversion to ensure the HCompareNumericAndBranch's 2874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inputs are doubles caused 'undefined' to be converted to NaN. That's 2875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // compatible out-of-the box with ordered relational comparisons (<, >, <=, 28763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // >=). However, for equality comparisons (and for 'in' and 'instanceof'), 28773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // it is not consistent with the spec. For example, it would cause undefined 28783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // == undefined (should be true) to be evaluated as NaN == NaN 28793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // (false). Therefore, any comparisons other than ordered relational 28803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // comparisons must cause a deopt when one of their arguments is undefined. 28813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // See also v8:1434 2882109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (Token::IsOrderedRelationalCompareOp(token_)) { 2883c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch SetFlag(kTruncatingToNumber); 28843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(rep); 2887b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2888b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2890958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HParameter::PrintDataTo(std::ostream& os) const { // NOLINT 2891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << index(); 2892b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2893b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2894b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2895958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 2896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_; 2897b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps() != NULL) { 2899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [" << *maps()->at(0).handle(); 2900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 2901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 290244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 2903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 290444f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 290544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 290844f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 290944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 291044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2911958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 2912014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 2913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 2914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2915014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 2916014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 2918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 291969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 2921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 2922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 292369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (RequiresHoleCheck()) os << " check_hole"; 2926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 292769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 292869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 292969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 2931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 2932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 2933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 2934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 2935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t base_offset = BaseOffsetField::decode(bit_field_); 2936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset; 2937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 2938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 2939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset = addition_result.ValueOrDie(); 2940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!BaseOffsetField::is_valid(base_offset)) return false; 2941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bit_field_ = BaseOffsetField::update(bit_field_, base_offset); 2942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2943b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2945b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::UsesMustHandleHole() const { 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2951014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hole_mode() == ALLOW_RETURN_HOLE) { 2956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return AllUsesCanTreatHoleAsNaN(); 2958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Holes are only returned as tagged values. 2967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsTagged()) { 29683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return false; 29693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2971257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2972257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* use = it.value(); 2973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use->IsChange()) return false; 2974257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 29753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::AllUsesCanTreatHoleAsNaN() const { 2981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsFastDoubleElementsKind(elements_kind()) && 2982c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch CheckUsesForFlag(HValue::kTruncatingToNumber); 2983257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2984257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2985257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::RequiresHoleCheck() const { 2987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2991014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2992014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 2993014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2994014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2995014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { 2996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !UsesMustHandleHole(); 30003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 30013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3002c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen MurdochHValue* HCallWithDescriptor::Canonicalize() { 3003c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (kind() != Code::KEYED_LOAD_IC) return this; 30043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Recognize generic keyed loads that use property name generated 30063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by for-in statement as a key and rewrite them into fast property load 30073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by index. 3008c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch typedef LoadWithVectorDescriptor Descriptor; 3009c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HValue* key = parameter(Descriptor::kName); 3010c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (key->IsLoadKeyed()) { 3011c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HLoadKeyed* key_load = HLoadKeyed::cast(key); 3012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_load->elements()->IsForInCacheArray()) { 30133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* names_cache = 3014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HForInCacheArray::cast(key_load->elements()); 30153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3016c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch HValue* object = parameter(Descriptor::kReceiver); 3017c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (names_cache->enumerable() == object) { 30183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* index_cache = 30193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch names_cache->index_cache(); 3020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HCheckMapValue* map_check = HCheckMapValue::New( 3021014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 3022c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch block()->graph()->GetInvalidContext(), object, names_cache->map()); 3023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* index = HLoadKeyed::New( 3024014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 3025014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->GetInvalidContext(), index_cache, key_load->key(), 3026014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch key_load->key(), nullptr, key_load->elements_kind()); 30273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch map_check->InsertBefore(this); 30283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index->InsertBefore(this); 3029c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return Prepend(new (block()->zone()) HLoadFieldByIndex(object, index)); 30303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 30343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3036958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 3037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_ << " = " << NameOf(value()); 3038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsWriteBarrier()) os << " (write-barrier)"; 3039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_transition()) os << " (transition map " << *transition_map() << ")"; 3040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 3041b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3044958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 3045014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 3046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 3047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3048014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 3049014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 3050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 3051b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3052b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 3054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 3055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "] = " << NameOf(value()); 30563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 30573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3059958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTransitionElementsKind::PrintDataTo( 3060958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()); 3062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = original_map().handle()->elements_kind(); 3063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = transitioned_map().handle()->elements_kind(); 3064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << *original_map().handle() << " [" 3065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(from_kind)->name() << "] -> " 3066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << *transitioned_map().handle() << " [" 3067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(to_kind)->name() << "]"; 3068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) os << " (simple)"; 3069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 30703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3073958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInnerAllocatedObject::PrintDataTo( 3074958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(base_object()) << " offset "; 3076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return offset()->PrintTo(os); 3077b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3078b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3079b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3080958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadContextSlot::PrintDataTo(std::ostream& os) const { // NOLINT 3081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << "[" << slot_index() << "]"; 30821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 30831e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30841e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3085958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreContextSlot::PrintDataTo( 3086958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(context()) << "[" << slot_index() 3088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3089b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 3090b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3091b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Implementation of type inference and type conversions. Calculates 3093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// the inferred type of this instruction based on the input operands. 3094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3095e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHType HValue::CalculateInferredType() { 3096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return type_; 3097b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3098b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3099b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HPhi::CalculateInferredType() { 3101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (OperandCount() == 0) return HType::Tagged(); 3102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType result = OperandAt(0)->type(); 3103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < OperandCount(); ++i) { 3104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType current = OperandAt(i)->type(); 3105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = result.Combine(current); 3106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3108b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3109b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3110b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HChange::CalculateInferredType() { 3112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsDouble() && to().IsTagged()) return HType::HeapNumber(); 3113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return type(); 3114b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3115b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3116b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromInputs() { 3118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (SupportsFlexibleFloorAndRound() && 3119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (op_ == kMathFloor || op_ == kMathRound)) { 3120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Floor and Round always take a double input. The integral result can be 3121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // used as an integer or a double. Infer the representation from the uses. 3122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 3125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 3126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 3127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation input_rep = value()->representation(); 3128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!input_rep.IsTagged()) { 3129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(input_rep); 3130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HAllocate::HandleSideEffectDominator(GVNFlag side_effect, 3136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator) { 3137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(side_effect == kNewSpacePromotion); 3138bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch DCHECK(!IsAllocationFolded()); 3139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3140014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Isolate* isolate = block()->isolate(); 3141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_use_allocation_folding) return false; 3142b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to fold allocations together with their dominating allocations. 3144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator->IsAllocate()) { 3145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s)\n", 3147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check whether we are folding within the same block for local folding. 3153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_use_local_allocation_folding && dominator->block() != block()) { 3154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), crosses basic blocks\n", 3156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3160b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAllocate* dominator_allocate = HAllocate::cast(dominator); 3162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator_size = dominator_allocate->size(); 3163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* current_size = size(); 3164b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): Add support for non-constant allocation in dominator. 3166bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!current_size->IsInteger32Constant() || 3167bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch !dominator_size->IsInteger32Constant()) { 3168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), " 3170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "dynamic allocation size in dominator\n", 3171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3175b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3176f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFoldingDominator()) { 3177f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (FLAG_trace_allocation_folding) { 3178f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), already dominator\n", id(), 3179f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch Mnemonic(), dominator->id(), dominator->Mnemonic()); 3180f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3181f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch return false; 3182f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch } 3183014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3184014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!IsFoldable(dominator_allocate)) { 3185014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (FLAG_trace_allocation_folding) { 3186014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), different spaces\n", id(), 3187014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Mnemonic(), dominator->id(), dominator->Mnemonic()); 3188014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK( 3193014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsNewSpaceAllocation() && dominator_allocate->IsNewSpaceAllocation()) || 3194014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsOldSpaceAllocation() && dominator_allocate->IsOldSpaceAllocation())); 3195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // First update the size of the dominator allocate instruction. 3197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size = dominator_allocate->size(); 3198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t original_object_size = 3199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(dominator_size)->GetInteger32Constant(); 3200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t dominator_size_constant = original_object_size; 3201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((dominator_size_constant & kDoubleAlignmentMask) != 0) { 3204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant += kDoubleSize / 2; 3205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3208bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch int32_t current_size_max_value = size()->GetInteger32Constant(); 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t new_dominator_size = dominator_size_constant + current_size_max_value; 32103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we clear the first word after folded memory, we cannot use the 3212f3b273f5e6ffd2f6ba1c18a27a17db41dfb113c3Ben Murdoch // whole kMaxRegularHeapObjectSize memory. 3213f3b273f5e6ffd2f6ba1c18a27a17db41dfb113c3Ben Murdoch if (new_dominator_size > kMaxRegularHeapObjectSize - kPointerSize) { 3214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s) due to size: %d\n", 3216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic(), new_dominator_size); 3218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 32213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3222bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HInstruction* new_dominator_size_value = HConstant::CreateAndInsertBefore( 3223bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch isolate, zone, context(), new_dominator_size, Representation::None(), 3224bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate); 32251e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->UpdateSize(new_dominator_size_value); 3227b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator_allocate->MustAllocateDoubleAligned()) { 3230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->MakeDoubleAligned(); 3231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3233b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3234bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!dominator_allocate->IsAllocationFoldingDominator()) { 3235bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate* first_alloc = 3236bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate::New(isolate, zone, dominator_allocate->context(), 3237bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_size, dominator_allocate->type(), 3238bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch IsNewSpaceAllocation() ? NOT_TENURED : TENURED, 3239bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch JS_OBJECT_TYPE, block()->graph()->GetConstant0()); 3240bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->InsertAfter(dominator_allocate); 3241bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->ReplaceAllUsesWith(first_alloc); 3242bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->MakeAllocationFoldingDominator(); 3243bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->MakeFoldedAllocation(dominator_allocate); 3244bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (FLAG_trace_allocation_folding) { 3245bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) inserted for dominator #%d (%s)\n", first_alloc->id(), 3246bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->Mnemonic(), dominator_allocate->id(), 3247bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->Mnemonic()); 3248bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3249bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3251bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch MakeFoldedAllocation(dominator_allocate); 3252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3254bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) folded into #%d (%s), new dominator size: %d\n", id(), 3255bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch Mnemonic(), dominator_allocate->id(), dominator_allocate->Mnemonic(), 3256bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch new_dominator_size); 3257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3260b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3262958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAllocate::PrintDataTo(std::ostream& os) const { // NOLINT 3263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(size()) << " ("; 3264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsNewSpaceAllocation()) os << "N"; 3265014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsOldSpaceAllocation()) os << "P"; 3266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) os << "A"; 3267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustPrefillWithFiller()) os << "F"; 3268f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFoldingDominator()) os << "d"; 3269f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch if (IsAllocationFolded()) os << "f"; 3270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3273b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 3275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 3276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 3277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 3279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset_; 3280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 3281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 3282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset_ = addition_result.ValueOrDie(); 3283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3286b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::NeedsCanonicalization() { 3288014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch switch (value()->opcode()) { 3289014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kLoadKeyed: { 3290014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ElementsKind load_kind = HLoadKeyed::cast(value())->elements_kind(); 3291014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return IsFixedFloatElementsKind(load_kind); 3292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3293014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kChange: { 3294014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation from = HChange::cast(value())->from(); 3295014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return from.IsTagged() || from.IsHeapObject(); 3296014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3297f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch case kConstant: 3298f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch // Double constants are canonicalized upon construction. 3299014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 3300f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch default: 3301f91f0611dbaf29ca0f1d4aecb357ce243a19d2faBen Murdoch return !value()->IsBinaryOperation(); 3302b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3303b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3305b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3306014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_INT(val) \ 3307014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<int32_t>(val)) 3308014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_DOUBLE(val) \ 3309014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<double>(val)) 3310b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3311109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HInstr, op) \ 3312109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3313109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3314109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3315109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3316109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3317109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3318109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch double double_res = c_left->DoubleValue() op c_right->DoubleValue(); \ 3319109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (IsInt32Double(double_res)) { \ 3320109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(double_res); \ 3321109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3322109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_DOUBLE(double_res); \ 3323109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3324109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3325109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3326014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3327b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HAdd, +) 3329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HMul, *) 3330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HSub, -) 3331257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR 3333257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3335014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringAdd::New(Isolate* isolate, Zone* zone, HValue* context, 3336014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, 3337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PretenureFlag pretenure_flag, 3338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddFlags flags, 3339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<AllocationSite> allocation_site) { 3340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasStringValue() && c_right->HasStringValue()) { 3344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> left_string = c_left->StringValue(); 3345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> right_string = c_right->StringValue(); 3346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prevent possible exception by invalid string length. 3347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_string->length() + right_string->length() < String::kMaxLength) { 3348014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MaybeHandle<String> concat = isolate->factory()->NewConsString( 3349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_left->StringValue(), c_right->StringValue()); 3350014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, concat.ToHandleChecked()); 3351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3353b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3354014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return new (zone) 3355014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HStringAdd(context, left, right, pretenure_flag, flags, allocation_site); 3356b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3357b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3358b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3359958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringAdd::PrintDataTo(std::ostream& os) const { // NOLINT 3360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_BOTH) { 3361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckBoth"; 3362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_LEFT) { 3363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckLeft"; 3364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_RIGHT) { 3365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckRight"; 3366b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::PrintDataTo(os); 3368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " ("; 3369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pretenure_flag() == NOT_TENURED) 3370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "N"; 3371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch else if (pretenure_flag() == TENURED) 3372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "D"; 3373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3377014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringCharFromCode::New(Isolate* isolate, Zone* zone, 3378014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* char_code) { 3379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && char_code->IsConstant()) { 3380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_code = HConstant::cast(char_code); 3381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_code->HasNumberValue()) { 3382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isfinite(c_code->DoubleValue())) { 3383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t code = c_code->NumberValueAsInteger32() & 0xffff; 3384014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New( 3385014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate, zone, context, 3386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->factory()->LookupSingleCharacterStringFromCode(code)); 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3388014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, 3389014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate->factory()->empty_string()); 3390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HStringCharFromCode(context, char_code); 3393b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3394b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3395b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3396014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HUnaryMathOperation::New(Isolate* isolate, Zone* zone, 3397014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 3398014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BuiltinFunctionId op) { 3399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch do { 3400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_fold_constants) break; 3401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsConstant()) break; 3402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value); 3403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!constant->HasNumberValue()) break; 3404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d = constant->DoubleValue(); 3405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isnan(d)) { // NaN poisons everything. 3406014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isinf(d)) { // +Infinity and -Infinity. 3409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 341013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 341113e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 341213e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 3414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0); 3415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 3416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3417014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE( 3418014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (d > 0.0) ? d : std::numeric_limits<double>::quiet_NaN()); 3419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d); 3422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(d); 3426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 3427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(32); 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 343413e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathCos: 343513e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::cos(d)); 3436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 343713e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::exp(d)); 3438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 343913e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::log(d)); 344013e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch case kMathSin: 344113e2dadd00298019ed862f2b2fc5068bba730bcfBen Murdoch return H_CONSTANT_DOUBLE(base::ieee754::sin(d)); 3442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3443014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch lazily_initialize_fast_sqrt(isolate); 3444014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(fast_sqrt(d, isolate)); 3445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(power_double_double(d, 0.5)); 3447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d); 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -0.5 .. -0.0 round to -0.0. 3451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0); 3452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Doubles are represented as Significant * 2 ^ Exponent. If the 3453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Exponent is not negative, the double value is already an integer. 3454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Double(d).Exponent() >= 0) return H_CONSTANT_DOUBLE(d); 3455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d + 0.5)); 3456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<double>(static_cast<float>(d))); 3458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d)); 3460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: { 3461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t i = DoubleToUint32(d); 3462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(base::bits::CountLeadingZeros32(i)); 3463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } while (false); 3469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HUnaryMathOperation(context, value, op); 3470b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3471b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3472b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromUses() { 3474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op_ != kMathFloor && op_ != kMathRound) { 3475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::RepresentationFromUses(); 3476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The instruction can have an int32 or double output. Prefer a double 3479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation if there are double uses. 3480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool use_double = false; 3481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int use_index = it.index(); 3485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_observed = use->observed_input_representation(use_index); 3486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_required = use->RequiredInputRepresentation(use_index); 3487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use_double |= (rep_observed.IsDouble() || rep_required.IsDouble()); 3488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_double && !FLAG_trace_representation) { 3489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Having seen one double is enough. 3490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 3493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!rep_required.IsDouble() || rep_observed.IsDouble()) { 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_observed.Mnemonic(), 3497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is required by #%d %s as %s%s\n", 3500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_required.Mnemonic(), 3502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3505b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return use_double ? Representation::Double() : Representation::Integer32(); 3507b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3508b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3510014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HPower::New(Isolate* isolate, Zone* zone, HValue* context, 3511014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right) { 3512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3516014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch double result = 3517014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch power_helper(isolate, c_left->DoubleValue(), c_right->DoubleValue()); 3518014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::isnan(result) 3519014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? std::numeric_limits<double>::quiet_NaN() 3520014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : result); 3521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HPower(left, right); 35243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3527014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMathMinMax::New(Isolate* isolate, Zone* zone, HValue* context, 3528014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, Operation op) { 3529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_left = c_left->DoubleValue(); 3534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_right = c_right->DoubleValue(); 3535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == kMathMin) { 3536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_right); 3537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_left); 3538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_left 3541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_right); 3542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_right); 3545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_left); 3546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_right 3549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_left); 3550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // All comparisons failed, must be NaN. 3553014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HMathMinMax(context, left, right, op); 3557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 35583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3559014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMod::New(Isolate* isolate, Zone* zone, HValue* context, 3560109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_left->HasInteger32Value() && c_right->HasInteger32Value()) { 35653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t dividend = c_left->Integer32Value(); 35663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t divisor = c_right->Integer32Value(); 3567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dividend == kMinInt && divisor == -1) { 3568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 3569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 35703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (divisor != 0) { 35713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t res = dividend % divisor; 35723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((res == 0) && (dividend < 0)) { 35733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 35743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(res); 35763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3579109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HMod(context, left, right); 35803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3582014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HDiv::New(Isolate* isolate, Zone* zone, HValue* context, 3583109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 35843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If left and right are constant values, try to return a constant value. 3585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 3589c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch if (std::isnan(c_left->DoubleValue()) || 3590c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch std::isnan(c_right->DoubleValue())) { 3591c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3592c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else if (c_right->DoubleValue() != 0) { 35933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double double_res = c_left->DoubleValue() / c_right->DoubleValue(); 3594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsInt32Double(double_res)) { 3595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(double_res); 35963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(double_res); 3598c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else if (c_left->DoubleValue() != 0) { 3599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int sign = Double(c_left->DoubleValue()).Sign() * 3600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Double(c_right->DoubleValue()).Sign(); // Right could be -0. 3601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(sign * V8_INFINITY); 3602c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch } else { 3603c8c1d9e03f4babd16833b0f8ccf6aab5fa6e8c7aBen Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 36043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3607109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HDiv(context, left, right); 36083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3610014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HBitwise::New(Isolate* isolate, Zone* zone, HValue* context, 3611109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch Token::Value op, HValue* left, HValue* right) { 3612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 36133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 36143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 36153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 36163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result; 36173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_left = c_left->NumberValueAsInteger32(); 36183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_right = c_right->NumberValueAsInteger32(); 36193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 36203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_XOR: 36213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left ^ v_right; 36223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_AND: 36243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left & v_right; 36253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_OR: 36273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left | v_right; 36283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 36303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = 0; // Please the compiler. 36313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 36323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(result); 36343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3636109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HBitwise(context, op, left, right); 36373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3639109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_BITWISE_INSTR(HInstr, result) \ 3640109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3641109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3642109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3643109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3644109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3645109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3646109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(result); \ 3647109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3648109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3649109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3650014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 36513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36523ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HSar, 36533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() >> (c_right->NumberValueAsInteger32() & 0x1f)) 36543ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HShl, 36553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() << (c_right->NumberValueAsInteger32() & 0x1f)) 36563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef DEFINE_NEW_H_BITWISE_INSTR 36583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3659014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HShr::New(Isolate* isolate, Zone* zone, HValue* context, 3660109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 36623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 36633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 36643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 36653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t left_val = c_left->NumberValueAsInteger32(); 36663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t right_val = c_right->NumberValueAsInteger32() & 0x1f; 36673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((right_val == 0) && (left_val < 0)) { 3668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<uint32_t>(left_val)); 36693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(static_cast<uint32_t>(left_val) >> right_val); 36713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3673109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HShr(context, left, right); 36743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3677014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HSeqStringGetChar::New(Isolate* isolate, Zone* zone, 3678014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, String::Encoding encoding, 3679014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* string, HValue* index) { 3680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && string->IsConstant() && index->IsConstant()) { 3681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_string = HConstant::cast(string); 3682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_index = HConstant::cast(index); 3683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_string->HasStringValue() && c_index->HasInteger32Value()) { 3684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> s = c_string->StringValue(); 3685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t i = c_index->Integer32Value(); 3686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, i); 3687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(i, s->length()); 3688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(s->Get(i)); 3689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HSeqStringGetChar(encoding, string, index); 3692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef H_CONSTANT_INT 36963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef H_CONSTANT_DOUBLE 36973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3699958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBitwise::PrintDataTo(std::ostream& os) const { // NOLINT 3700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(op_) << " "; 3701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBitwiseBinaryOperation::PrintDataTo(os); 3702257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 3703257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3704257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::SimplifyConstantInputs() { 3706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert constant inputs to integers when all uses are truncating. 3707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This must happen before representation inference takes place. 3708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!CheckUsesForFlag(kTruncatingToInt32)) return; 37093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!OperandAt(i)->IsConstant()) return; 3711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HGraph* graph = block()->graph(); 3713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* operand = HConstant::cast(OperandAt(i)); 3715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand->HasInteger32Value()) { 37163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch continue; 3717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasDoubleValue()) { 3718014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant* integer_input = HConstant::New( 3719014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch graph->isolate(), graph->zone(), graph->GetInvalidContext(), 3720014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DoubleToInt32(operand->DoubleValue())); 3721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch integer_input->InsertAfter(operand); 3722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, integer_input); 3723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasBooleanValue()) { 3724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, operand->BooleanValue() ? graph->GetConstant1() 3725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : graph->GetConstant0()); 3726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->ImmortalImmovable()) { 3727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, graph->GetConstant0()); 37283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Overwrite observed input representations because they are likely Tagged. 3731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use->IsBinaryOperation()) { 3734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::cast(use)->set_observed_input_representation( 3735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.index(), Representation::Smi()); 37363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 37373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 37403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::InferRepresentation(HInferRepresentationPhase* h_infer) { 3742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 3743958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation new_rep = RepresentationFromUses(); 3744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 3745958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier new_rep = RepresentationFromInputs(); 3746958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier UpdateRepresentation(new_rep, h_infer, "inputs"); 3747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUseRequirements(); 3748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "use requirements"); 3749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HPhi::RepresentationFromInputs() { 3753958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation r = representation(); 3754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3755958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Ignore conservative Tagged assumption of parameters if we have 3756958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // reason to believe that it's too conservative. 3757014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (has_type_feedback_from_uses() && OperandAt(i)->IsParameter()) { 3758014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch continue; 3759014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3760958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = r.generalize(OperandAt(i)->KnownOptimalRepresentation()); 3762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return r; 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns a representation if all uses agree on the same representation. 3768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Integer32 is also returned when some uses are Smi but others are Integer32. 3769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUseRequirements() { 3770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 3771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ignore the use requirement from never run code 3773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->block()->IsUnreachable()) continue; 3774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone()) { 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = use_rep; 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_rep.IsNone() || rep.Equals(use_rep)) continue; 3783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.generalize(use_rep).IsInteger32()) { 3784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Integer32(); 3785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasNonSmiUse() { 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use_rep.IsNone() && 3799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsSmi() && 3800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsTagged()) { 3801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 38053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 38063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 38073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3808b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Node-specific verification code is only included in debug mode. 3809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 3810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38111e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HPhi::Verify() { 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(OperandCount() == block()->predecessors()->length()); 3813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 3814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* value = OperandAt(i); 3815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* defining_block = value->block(); 3816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* predecessor_block = block()->predecessors()->at(i); 3817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(defining_block == predecessor_block || 3818b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch defining_block->Dominates(predecessor_block)); 3819b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3820b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38231e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HSimulate::Verify() { 3824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasAstId() || next()->IsEnterInlined()); 3826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3828b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckHeapObject::Verify() { 3830b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3832b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3833b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckValue::Verify() { 3836b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3838b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3839b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 3841b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForFixedArrayHeader(int offset) { 3844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset < FixedArray::kHeaderSize); 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == FixedArray::kLengthOffset) return ForFixedArrayLength(); 3847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3848b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3849b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3850b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForMapAndOffset(Handle<Map> map, int offset, 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool existing_inobject_property = true; 3862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!map.is_null()) { 3863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch existing_inobject_property = (offset < 3864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch map->instance_size() - map->unused_property_fields() * kPointerSize); 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, representation, Handle<String>::null(), 3867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, existing_inobject_property); 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForAllocationSiteOffset(int offset) { 3872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (offset) { 3873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kTransitionInfoOffset: 3874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kNestedSiteOffset: 3876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureDataOffset: 3878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureCreateCountOffset: 3880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kDependentCodeOffset: 3882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kWeakNextOffset: 3884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3890b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForContextSlot(int index) { 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index >= 0); 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = Context::kHeaderSize + index * kPointerSize; 3896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(offset, Context::SlotOffset(index) + kHeapObjectTag); 3897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, Representation::Tagged()); 3898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3901958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHObjectAccess HObjectAccess::ForScriptContext(int index) { 3902958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(index >= 0); 3903958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Portion portion = kInobject; 3904958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int offset = ScriptContextTable::GetContextOffset(index); 3905958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return HObjectAccess(portion, offset, Representation::Tagged()); 3906958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 3907958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3908958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForJSArrayOffset(int offset) { 3910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSArray::kLengthOffset) { 3916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kArrayLengths; 3917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset); 3921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForBackingStoreOffset(int offset, 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, 3928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String>::null(), false, false); 3929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForField(Handle<Map> map, int index, 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation, 3934014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name) { 3935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index < 0) { 3936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Negative property indices are in-object properties, indexed 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // from the end of the fixed part of the object. 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + map->instance_size(); 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, representation, name, false, true); 3940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Non-negative property indices are in the properties array. 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + FixedArray::kHeaderSize; 3943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, name, 3944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, false); 3945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HObjectAccess::SetGVNFlags(HValue *instr, PropertyAccessType access_type) { 3950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // set the appropriate GVN flags for a given load or store instruction 3951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // track dominating allocations in order to eliminate write barriers 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kNewSpacePromotion); 3954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kTrackSideEffectDominators); 3955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // try to GVN loads, but don't hoist above map changes 3957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kUseGVN); 3958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 3959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (portion()) { 3962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kArrayLengths: 3963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kArrayLengths); 3965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kArrayLengths); 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kStringLengths: 3970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kStringLengths); 3972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kStringLengths); 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kInobject: 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kInobjectFields); 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kInobjectFields); 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kDouble: 3984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kDoubleFields); 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kDoubleFields); 3988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kBackingStore: 3991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kBackingStoreFields); 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kBackingStoreFields); 3995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kElementsPointer: 3998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kElementsPointer); 4000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kElementsPointer); 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMaps: 4005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kMaps); 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 4009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kExternalMemory: 4012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 4013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kExternalMemory); 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kExternalMemory); 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4022958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HObjectAccess& access) { 4023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "."; 4024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (access.portion()) { 4026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kArrayLengths: 4027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kStringLengths: 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%length"; 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kElementsPointer: 4031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%elements"; 4032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kMaps: 4034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%map"; 4035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kDouble: // fall through 4037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kInobject: 4038014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[in-object]"; 4042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kBackingStore: 4044014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[backing-store]"; 4048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kExternalMemory: 4050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[external-memory]"; 4051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "@" << access.offset(); 4055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4056b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4057014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace internal 4058014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace v8 4059