hydrogen-instructions.cc revision bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8
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" 8014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/base/safe_math.h" 9014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/hydrogen-infer-representation.h" 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/double.h" 11014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/elements.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/factory.h" 13b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 14b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#if V8_TARGET_ARCH_IA32 15014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ia32/lithium-ia32.h" // NOLINT 16b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_X64 17014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x64/lithium-x64.h" // NOLINT 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_ARM64 19014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm64/lithium-arm64.h" // NOLINT 20b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#elif V8_TARGET_ARCH_ARM 21014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm/lithium-arm.h" // NOLINT 22014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#elif V8_TARGET_ARCH_PPC 23014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/ppc/lithium-ppc.h" // NOLINT 2444f0eee88ff00398ff7f715fab053374d808c90dSteve Block#elif V8_TARGET_ARCH_MIPS 25014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips/lithium-mips.h" // NOLINT 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_MIPS64 27014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/mips64/lithium-mips64.h" // NOLINT 283b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#elif V8_TARGET_ARCH_S390 293b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch#include "src/crankshaft/s390/lithium-s390.h" // NOLINT 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#elif V8_TARGET_ARCH_X87 31014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/x87/lithium-x87.h" // NOLINT 32b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#else 33b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#error Unsupported target architecture. 34b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 37b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 39b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#define DEFINE_COMPILE(type) \ 40b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LInstruction* H##type::CompileToLithium(LChunkBuilder* builder) { \ 41b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return builder->Do##type(this); \ 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochHYDROGEN_CONCRETE_INSTRUCTION_LIST(DEFINE_COMPILE) 44b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef DEFINE_COMPILE 45b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 46b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochIsolate* HValue::isolate() const { 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->isolate(); 503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 53257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::AssumeRepresentation(Representation r) { 54257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (CheckFlag(kFlexibleRepresentation)) { 55257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ChangeRepresentation(r); 56257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The representation of the value is dictated by type feedback and 57257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // will not be changed later. 58257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch ClearFlag(kFlexibleRepresentation); 59257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 60b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 61b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 62b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::InferRepresentation(HInferRepresentationPhase* h_infer) { 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 67b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUses() { 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return Representation::None(); 78014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation result = Representation::None(); 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 81b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 82b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = use->observed_input_representation(it.index()); 83014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize(rep); 84014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), use->Mnemonic(), rep.Mnemonic(), 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 91014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsPhi()) { 92014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch result = result.generalize( 93014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HPhi::cast(this)->representation_from_indirect_uses()); 94014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 96014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // External representations are dealt with separately. 97014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return result.IsExternal() ? Representation::None() : result; 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 99b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::UpdateRepresentation(Representation new_rep, 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer, 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* reason) { 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_rep.is_more_general_than(r)) { 106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCannotBeTagged) && new_rep.IsTagged()) return; 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Changing #%d %s representation %s -> %s based on %s\n", 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), r.Mnemonic(), new_rep.Mnemonic(), reason); 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(new_rep); 112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDependantsToWorklist(h_infer); 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HValue::AddDependantsToWorklist(HInferRepresentationPhase* h_infer) { 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(it.value()); 120b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch h_infer->AddToWorklist(OperandAt(i)); 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t ConvertAndSetOverflow(Representation r, 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t result, 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > Smi::kMaxValue) { 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMaxValue; 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < Smi::kMinValue) { 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::kMinValue; 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result > kMaxInt) { 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMaxInt; 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result < kMinInt) { 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *overflow = true; 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return kMinInt; 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 148b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 149b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return static_cast<int32_t>(result); 150b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 152b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AddWithoutOverflow(Representation r, 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 157b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) + static_cast<int64_t>(b); 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 160b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 161b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t SubWithoutOverflow(Representation r, 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) - static_cast<int64_t>(b); 167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 169b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t MulWithoutOverflow(const Representation& r, 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t a, 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t b, 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool* overflow) { 175b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int64_t result = static_cast<int64_t>(a) * static_cast<int64_t>(b); 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ConvertAndSetOverflow(r, result, overflow); 177b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 178b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 179b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 180b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochint32_t Range::Mask() const { 181b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ == upper_) return lower_; 182b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ >= 0) { 183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t res = 1; 184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (res < upper_) { 185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch res = (res << 1) | 1; 186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return 0xffffffff; 190b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 192b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 193b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::AddConstant(int32_t value) { 194b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (value == 0) return; 195b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; // Overflow is ignored here. 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = Representation::Integer32(); 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, value, &may_overflow); 198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, value, &may_overflow); 1993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 205e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Intersect(Range* other) { 206e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Min(upper_, other->upper_); 207e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Max(lower_, other->lower_); 208e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() && other->CanBeMinusZero(); 209e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 210e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 211e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 212e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 213e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Union(Range* other) { 214e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = Max(upper_, other->upper_); 215e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = Min(lower_, other->lower_); 216e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool b = CanBeMinusZero() || other->CanBeMinusZero(); 217e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(b); 218e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 219e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 220e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMax(Range* other) { 222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Max(upper_, other->upper_); 223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Max(lower_, other->lower_); 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Range::CombinedMin(Range* other) { 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = Min(upper_, other->upper_); 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = Min(lower_, other->lower_); 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_can_be_minus_zero(CanBeMinusZero() || other->CanBeMinusZero()); 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 235e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Sar(int32_t value) { 236e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 237e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ >> bits; 238e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ >> bits; 239e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 240e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 241e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 242e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 243e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid Range::Shl(int32_t value) { 244e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t bits = value & 0x1F; 245e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_lower = lower_; 246e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int old_upper = upper_; 247e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = lower_ << bits; 248e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = upper_ << bits; 249e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (old_lower != lower_ >> bits || old_upper != upper_ >> bits) { 250e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch upper_ = kMaxInt; 251e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch lower_ = kMinInt; 252e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 253e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch set_can_be_minus_zero(false); 254e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 255e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 256e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::AddAndCheckOverflow(const Representation& r, Range* other) { 258b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = AddWithoutOverflow(r, lower_, other->lower(), &may_overflow); 260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = AddWithoutOverflow(r, upper_, other->upper(), &may_overflow); 261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch KeepOrder(); 2623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 263b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 265b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 268b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::SubAndCheckOverflow(const Representation& r, Range* other) { 270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch lower_ = SubWithoutOverflow(r, lower_, other->upper(), &may_overflow); 272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch upper_ = SubWithoutOverflow(r, upper_, other->lower(), &may_overflow); 273b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch KeepOrder(); 2743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 275b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 2763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 277b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 278b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 279b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 280b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 281b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::KeepOrder() { 282b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (lower_ > upper_) { 283b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int32_t tmp = lower_; 284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = upper_; 285b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = tmp; 286b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 287b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 288b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 291b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid Range::Verify() const { 292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(lower_ <= upper_); 293b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 295b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 296b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Range::MulAndCheckOverflow(const Representation& r, Range* other) { 298b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool may_overflow = false; 299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v1 = MulWithoutOverflow(r, lower_, other->lower(), &may_overflow); 300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v2 = MulWithoutOverflow(r, lower_, other->upper(), &may_overflow); 301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v3 = MulWithoutOverflow(r, upper_, other->lower(), &may_overflow); 302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int v4 = MulWithoutOverflow(r, upper_, other->upper(), &may_overflow); 303b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch lower_ = Min(Min(v1, v2), Min(v3, v4)); 304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch upper_ = Max(Max(v1, v2), Max(v3, v4)); 3053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 306b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Verify(); 3073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 308b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return may_overflow; 309b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 310b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 311b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 312257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochbool HValue::IsDefinedAfter(HBasicBlock* other) const { 313257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return block()->block_id() > other->block_id(); 314257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 315257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 316257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3173ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHUseListNode* HUseListNode::tail() { 3183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Skip and remove dead items in the use list. 3193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (tail_ != NULL && tail_->value()->CheckFlag(HValue::kIsDead)) { 3203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch tail_ = tail_->tail_; 3213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return tail_; 3233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f) const { 3273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 3293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!it.value()->CheckFlag(f)) return false; 3303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return true; 3323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 3333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CheckUsesForFlag(Flag f, HValue** value) const { 336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) { 339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *value = it.value(); 340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasAtLeastOneUseWithFlagAndNoneWithout(Flag f) const { 348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool return_value = false; 349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->IsSimulate()) continue; 351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!it.value()->CheckFlag(f)) return false; 352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_value = true; 353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return return_value; 355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 358257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseIterator::HUseIterator(HUseListNode* head) : next_(head) { 359257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Advance(); 360257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 361257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 362257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 363257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HUseIterator::Advance() { 364257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current_ = next_; 365257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current_ != NULL) { 366257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch next_ = current_->tail(); 367257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value_ = current_->value(); 368257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch index_ = current_->index(); 369b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 370b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 371b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 372b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 373257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochint HValue::UseCount() const { 374257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int count = 0; 375257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) ++count; 376257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return count; 377b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 378b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 379b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 380257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochHUseListNode* HValue::RemoveUse(HValue* value, int index) { 381257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* previous = NULL; 382257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* current = use_list_; 383257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (current != NULL) { 384257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current->value() == value && current->index() == index) { 385257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (previous == NULL) { 386257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = current->tail(); 387257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 388257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous->set_tail(current->tail()); 389257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 390257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch break; 391b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 392257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 393257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch previous = current; 394257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = current->tail(); 395b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 396257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 397257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#ifdef DEBUG 398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Do not reuse use list nodes in debug mode, zap them. 399257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (current != NULL) { 400257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* temp = 401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(block()->zone()) 402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUseListNode(current->value(), current->index(), NULL); 403257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current->Zap(); 404257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch current = temp; 405257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 406257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#endif 407257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return current; 408b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 409b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 410b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 411e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HValue::Equals(HValue* other) { 412b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (other->opcode() != opcode()) return false; 413b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->representation().Equals(representation())) return false; 414b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other->type_.Equals(type_)) return false; 4151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (other->flags() != flags()) return false; 416b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandCount() != other->OperandCount()) return false; 417b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 418b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (OperandAt(i)->id() != other->OperandAt(i)->id()) return false; 419b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 420b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = DataEquals(other); 421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result || Hashcode() == other->Hashcode()); 422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 423b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 424b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 425b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 426e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochintptr_t HValue::Hashcode() { 427b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch intptr_t result = opcode(); 428b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 429b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < count; ++i) { 430b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result = result * 19 + OperandAt(i)->id() + (result >> 7); 431b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 433b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 436257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochconst char* HValue::Mnemonic() const { 437257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (opcode()) { 438257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#define MAKE_CASE(type) case k##type: return #type; 439257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HYDROGEN_CONCRETE_INSTRUCTION_LIST(MAKE_CASE) 440257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef MAKE_CASE 441257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case kPhi: return "Phi"; 442257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: return ""; 443257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 444257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 445257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 446257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::CanReplaceWithDummyUses() { 448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FLAG_unreachable_code_elimination && 449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(block()->IsReachable() || 450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsBlockEntry() || 451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsControlInstruction() || 452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsArgumentsObject() || 453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsCapturedObject() || 454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSimulate() || 455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsEnterInlined() || 456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsLeaveInlined()); 457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::IsInteger32Constant() { 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsConstant() && HConstant::cast(this)->HasInteger32Value(); 462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t HValue::GetInteger32Constant() { 466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HConstant::cast(this)->Integer32Value(); 467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::EqualsInteger32Constant(int32_t value) { 471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsInteger32Constant() && GetInteger32Constant() == value; 472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 475b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::SetOperandAt(int index, HValue* value) { 476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RegisterUse(index, value); 477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InternalSetOperandAt(index, value); 478b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 479b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 481257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::DeleteAndReplaceWith(HValue* other) { 482257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We replace all uses first, so Delete can assert that there are none. 483257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (other != NULL) ReplaceAllUsesWith(other); 4843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Kill(); 485257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DeleteFromGraph(); 486b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 487b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 488b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 489257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::ReplaceAllUsesWith(HValue* other) { 490257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch while (use_list_ != NULL) { 491257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* list_node = use_list_; 492257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = list_node->value(); 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->block()->IsStartBlock()); 494257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch value->InternalSetOperandAt(list_node->index(), other); 495257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch use_list_ = list_node->tail(); 496257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch list_node->set_tail(other->use_list_); 497257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch other->use_list_ = list_node; 498b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 499b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 500b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 501b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::Kill() { 5033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Instead of going through the entire use list of each operand, we only 5043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // check the first item in each use list and rely on the tail() method to 5053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // skip dead items, removing them lazily next time we traverse the list. 5063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetFlag(kIsDead); 507b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 5083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HValue* operand = OperandAt(i); 509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand == NULL) continue; 5103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HUseListNode* first = operand->use_list_; 511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (first != NULL && first->value()->CheckFlag(kIsDead)) { 5123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch operand->use_list_ = first->tail(); 5133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 514b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 515b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 516b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 517b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 518257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HValue::SetBlock(HBasicBlock* block) { 519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block_ == NULL || block == NULL); 520257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch block_ = block; 521257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (id_ == kNoNumber && block != NULL) { 522257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch id_ = block->graph()->GetNextValueID(this); 523b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 524b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 525b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 526b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 527958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HValue& v) { 528958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return v.PrintTo(os); 529958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 530b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 531b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 532958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const TypeOf& t) { 533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (t.value->representation().IsTagged() && 534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !t.value->type().Equals(HType::Tagged())) 535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << " type:" << t.value->type(); 537b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 538b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 540958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const ChangesOf& c) { 541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVNFlagSet changes_flags = c.value->ChangesFlags(); 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.IsEmpty()) return os; 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " changes["; 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags == c.value->AllSideEffectsFlagSet()) { 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "*"; 546257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 547257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool add_comma = false; 548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define PRINT_DO(Type) \ 549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (changes_flags.Contains(k##Type)) { \ 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (add_comma) os << ","; \ 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch add_comma = true; \ 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << #Type; \ 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_TRACKED_FLAG_LIST(PRINT_DO); 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GVN_UNTRACKED_FLAG_LIST(PRINT_DO); 556257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#undef PRINT_DO 557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "]"; 559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 560b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 561b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasMonomorphicJSObjectType() { 563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !GetMonomorphicJSObjectMap().is_null(); 564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HValue::UpdateInferredType() { 568b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HType type = CalculateInferredType(); 569b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool result = (!type.Equals(type_)); 570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch type_ = type; 571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 573b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 575b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RegisterUse(int index, HValue* new_value) { 576b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* old_value = OperandAt(index); 577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (old_value == new_value) return; 578257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 579257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HUseListNode* removed = NULL; 580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (old_value != NULL) { 581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed = old_value->RemoveUse(this, index); 582257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 583257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 584b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (new_value != NULL) { 585257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (removed == NULL) { 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_value->use_list_ = new(new_value->block()->zone()) HUseListNode( 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, index, new_value->use_list_); 588257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 589257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch removed->set_tail(new_value->use_list_); 590257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch new_value->use_list_ = removed; 591257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::AddNewRange(Range* r, Zone* zone) { 5973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) ComputeInitialRange(zone); 5983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!HasRange()) range_ = new(zone) Range(); 599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 600b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch r->StackUpon(range_); 601b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = r; 602b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 603b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 604b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 605b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HValue::RemoveLastAddedRange() { 606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(range_->next() != NULL); 608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range_ = range_->next(); 609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 611b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 6123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HValue::ComputeInitialRange(Zone* zone) { 613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!HasRange()); 6143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch range_ = InferRange(zone); 615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasRange()); 616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 619958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintTo(std::ostream& os) const { // NOLINT 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Mnemonic() << " "; 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintDataTo(os) << ChangesOf(this) << TypeOf(this); 622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kHasNoObservableSideEffects)) os << " [noOSE]"; 623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(HValue::kIsDead)) os << " [dead]"; 624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 625257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 626b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 628958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInstruction::PrintDataTo(std::ostream& os) const { // NOLINT 629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << " "; 631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 636b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::Unlink() { 638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); // Must never move control instructions. 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsBlockEntry()); // Doesn't make sense to delete these. 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(previous_ != NULL); 642e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch previous_->next_ = next_; 643e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (next_ == NULL) { 644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block()->last() == this); 645e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch block()->set_last(previous_); 646e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 647e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch next_->previous_ = previous_; 648e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 649b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch clear_block(); 650b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 651b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 652b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 653b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertBefore(HInstruction* next) { 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->IsBlockEntry()); 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction()); 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!next->block()->IsStartBlock()); 658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->previous_ != NULL); 659b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* prev = next->previous(); 660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch prev->next_ = this; 661b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next->previous_ = this; 662b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = prev; 664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(next->block()); 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && next->has_position()) { 666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(next->position()); 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HInstruction::InsertAfter(HInstruction* previous) { 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsLinked()); 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!previous->IsControlInstruction()); 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!IsControlInstruction() || previous->next_ == NULL); 675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* block = previous->block(); 676b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Never insert anything except constants into the start block after finishing 677b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // it. 678b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block->IsStartBlock() && block->IsFinished() && !IsConstant()) { 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block->end()->SecondSuccessor() == NULL); 680b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch InsertAfter(block->end()->FirstSuccessor()->first()); 681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // If we're inserting after an instruction with side-effects that is 685b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // followed by a simulate instruction, we need to insert after the 686b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // simulate instruction instead. 687b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction* next = previous->next_; 6883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (previous->HasObservableSideEffects() && next != NULL) { 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next->IsSimulate()); 690b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous = next; 691b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next = previous->next_; 692b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous_ = previous; 695b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch next_ = next; 696b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetBlock(block); 697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch previous->next_ = this; 698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (next != NULL) next->previous_ = this; 699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block->last() == previous) { 700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block->set_last(this); 701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!has_position() && previous->has_position()) { 703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_position(previous->position()); 704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::Dominates(HInstruction* other) { 709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block() != other->block()) { 710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return block()->Dominates(other->block()); 711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Both instructions are in the same basic block. This instruction 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // should precede the other one in order to dominate it. 714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HInstruction* instr = next(); instr != NULL; instr = instr->next()) { 715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr == other) { 716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 722b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 7241e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HInstruction::Verify() { 725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that input operands are defined before use. 726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* cur_block = block(); 727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* other_operand = OperandAt(i); 729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (other_operand == NULL) continue; 730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* other_block = other_operand->block(); 731b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur_block == other_block) { 732b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!other_operand->IsPhi()) { 7333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HInstruction* cur = this->previous(); 734b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (cur != NULL) { 735b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (cur == other_operand) break; 7363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch cur = cur->previous(); 737b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 738b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Must reach other operand in the same block! 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(cur == other_operand); 740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 741b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 742257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the following assert fires, you may have forgotten an 743257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // AddInstruction. 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(other_block->Dominates(cur_block)); 745b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 746b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Verify that instructions that may have side-effects are followed 749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // by a simulate instruction. 7503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasObservableSideEffects() && !IsOsrEntry()) { 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(next()->IsSimulate()); 752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 7531e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 7541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Verify that instructions that can be eliminated by GVN have overridden 7551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // HValue::DataEquals. The default implementation is UNREACHABLE. We 7561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // don't actually care whether DataEquals returns true or false here. 7571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (CheckFlag(kUseGVN)) DataEquals(this); 758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Verify that all uses are in the graph. 760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator use = uses(); !use.Done(); use.Advance()) { 761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use.value()->IsInstruction()) { 762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HInstruction::cast(use.value())->IsLinked()); 763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HInstruction::CanDeoptimize() { 770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (opcode()) { 771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAbnormalExit: 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAccessArgumentsAt: 773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAllocate: 774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsElements: 775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsLength: 776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kArgumentsObject: 777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBlockEntry: 778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallNewArray: 779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCapturedObject: 780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClassOfTestAndBranch: 781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareGeneric: 782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareHoleAndBranch: 783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareMap: 784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareNumericAndBranch: 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCompareObjectEqAndBranch: 786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstant: 787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kConstructDouble: 788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kContext: 789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDebugBreak: 790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeclareGlobals: 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDoubleBits: 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDummyUse: 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnterInlined: 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kEnvironmentMarker: 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForceRepresentation: 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGetCachedArrayIndex: 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kGoto: 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasCachedArrayIndexAndBranch: 799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kHasInstanceTypeAndBranch: 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInnerAllocatedObject: 801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsSmiAndBranch: 802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsStringAndBranch: 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kIsUndetectableAndBranch: 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLeaveInlined: 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFieldByIndex: 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadGlobalGeneric: 807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedField: 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadNamedGeneric: 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadRoot: 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathMinMax: 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kParameter: 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPhi: 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPushArguments: 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kReturn: 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringGetChar: 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreCodeEntry: 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyed: 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedField: 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreNamedGeneric: 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharCodeAt: 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCharFromCode: 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kThisFunction: 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeofIsAndBranch: 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnknownOSRValue: 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUseConst: 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kAdd: 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kApplyArguments: 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBitwise: 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBoundsCheck: 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kBranch: 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCallRuntime: 834958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier case HValue::kCallWithDescriptor: 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kChange: 836014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kCheckArrayBufferNotNeutered: 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckHeapObject: 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckInstanceType: 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMapValue: 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckMaps: 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckSmi: 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kCheckValue: 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kClampToUint8: 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDeoptimize: 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kDiv: 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInCacheArray: 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kForInPrepareMap: 848014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kHasInPrototypeChainAndBranch: 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kInvokeFunction: 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadContextSlot: 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadFunctionPrototype: 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyed: 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kLoadKeyedGeneric: 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMathFloorOfDiv: 855014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kMaybeGrowElements: 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMod: 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kMul: 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kOsrEntry: 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kPower: 860014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case HValue::kPrologue: 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kRor: 862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSar: 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSeqStringSetChar: 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShl: 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kShr: 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSimulate: 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStackCheck: 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreContextSlot: 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStoreKeyedGeneric: 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringAdd: 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kStringCompareAndBranch: 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kSub: 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTransitionElementsKind: 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTrapAllocationMemento: 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kTypeof: 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kUnaryMathOperation: 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HValue::kWrapReceiver: 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 885958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const NameOf& v) { 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << v.value->representation().Mnemonic() << v.value->id(); 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 889958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HDummyUse::PrintDataTo(std::ostream& os) const { // NOLINT 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 894958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnvironmentMarker::PrintDataTo( 895958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << (kind() == BIND ? "bind" : "lookup") << " var[" << index() 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 901958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " #" << argument_count(); 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 906958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryCall::PrintDataTo(std::ostream& os) const { // NOLINT 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(first()) << " " << NameOf(second()) << " #" 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << argument_count(); 90969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 91069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 9113b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintTo(std::ostream& os) const { // NOLINT 9123b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (tail_call_mode() == TailCallMode::kAllow) os << "Tail"; 9133b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return HBinaryCall::PrintTo(os); 914014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 915014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 9163b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdochstd::ostream& HInvokeFunction::PrintDataTo(std::ostream& os) const { // NOLINT 9173b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch HBinaryCall::PrintDataTo(os); 9183b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 9193b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 9213b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 924958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBoundsCheck::PrintDataTo(std::ostream& os) const { // NOLINT 925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()) << " " << NameOf(length()); 926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != NULL && (offset() != 0 || scale() != 0)) { 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " base: (("; 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base() != index()) { 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(index()); 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "index"; 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " + " << offset() << ") >> " << scale() << ")"; 934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip_check()) os << " [DISABLED]"; 936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBoundsCheck::InferRepresentation(HInferRepresentationPhase* h_infer) { 941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_index = index()->ActualValue(); 943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* actual_length = length()->ActualValue(); 944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation index_rep = actual_index->representation(); 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation length_rep = actual_length->representation(); 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index_rep.IsTagged() && actual_index->type().IsSmi()) { 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_rep = Representation::Smi(); 948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (length_rep.IsTagged() && actual_length->type().IsSmi()) { 950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch length_rep = Representation::Smi(); 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = index_rep.generalize(length_rep); 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.is_more_general_than(Representation::Integer32())) { 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(r, h_infer, "boundscheck"); 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HBoundsCheck::InferRange(Zone* zone) { 961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && length()->HasRange()) { 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = length()->range()->upper() - (allow_equality() ? 0 : 1); 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = 0; 965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(lower, upper); 967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index()->HasRange()) { 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->Intersect(index()->range()); 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp result to Smi::kMaxValue. 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 979958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallWithDescriptor::PrintDataTo( 980958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); i++) { 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(OperandAt(i)) << " "; 983b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 9843b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << "#" << argument_count(); 9853b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 9863b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 9873b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 9883b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 989b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 992958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallNewArray::PrintDataTo(std::ostream& os) const { // NOLINT 993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << ElementsKindToString(elements_kind()) << " "; 994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryCall::PrintDataTo(os); 995b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 996b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 997b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 998958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCallRuntime::PrintDataTo(std::ostream& os) const { // NOLINT 999014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch os << function()->name << " "; 1000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (save_doubles() == kSaveFPRegs) os << "[save doubles] "; 1001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "#" << argument_count(); 1002b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1003b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1004b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1005958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HClassOfTestAndBranch::PrintDataTo( 1006958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "class_of_test(" << NameOf(value()) << ", \"" 1008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << class_name()->ToCString().get() << "\")"; 1009b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1010b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1011b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1012958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HWrapReceiver::PrintDataTo(std::ostream& os) const { // NOLINT 1013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(receiver()) << " " << NameOf(function()); 1014b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1015b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1016b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1017958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAccessArgumentsAt::PrintDataTo( 1018958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(arguments()) << "[" << NameOf(index()) << "], length " 1020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(length()); 1021b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1022b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1024958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HControlInstruction::PrintDataTo( 1025958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " goto ("; 10273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool first_block = true; 10283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (HSuccessorIterator it(this); !it.Done(); it.Advance()) { 1029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!first_block) os << ", "; 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << *it.Current(); 10313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch first_block = false; 10321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 1033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 1034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1037958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryControlInstruction::PrintDataTo( 1038958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1044958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HReturn::PrintDataTo(std::ostream& os) const { // NOLINT 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " (pop " << NameOf(parameter_count()) 1046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << " values)"; 1047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1048b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1049b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBranch::observed_input_representation(int index) { 10513b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (expected_input_types_.Contains(ToBooleanICStub::NULL_TYPE) || 10523b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch expected_input_types_.Contains(ToBooleanICStub::SPEC_OBJECT) || 10533b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch expected_input_types_.Contains(ToBooleanICStub::STRING) || 10543b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch expected_input_types_.Contains(ToBooleanICStub::SYMBOL) || 10553b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch expected_input_types_.Contains(ToBooleanICStub::SIMD_VALUE)) { 1056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 10583b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (expected_input_types_.Contains(ToBooleanICStub::UNDEFINED)) { 10593b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (expected_input_types_.Contains(ToBooleanICStub::HEAP_NUMBER)) { 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Tagged(); 1063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 10643b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (expected_input_types_.Contains(ToBooleanICStub::HEAP_NUMBER)) { 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Double(); 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 10673b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (expected_input_types_.Contains(ToBooleanICStub::SMI)) { 1068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::Smi(); 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 1071b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1072b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1073b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBranch::KnownSuccessorBlock(HBasicBlock** block) { 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = this->value(); 1076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->EmitAtUses()) { 1077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(value->IsConstant()); 1078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!value->representation().IsDouble()); 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value)->BooleanValue() 1080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() 1081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : SecondSuccessor(); 1082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 10863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 10873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 10883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1089958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBranch::PrintDataTo(std::ostream& os) const { // NOLINT 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryControlInstruction::PrintDataTo(os) << " " 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << expected_input_types(); 10923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 10933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 10943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1095958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " (" << *map().handle() << ")"; 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HControlInstruction::PrintDataTo(os); 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() == 0) { 1099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [true]"; 1100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (known_successor_index() == 1) { 1101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [false]"; 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1104b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochconst char* HUnaryMathOperation::OpName() const { 1108b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op()) { 1109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 1110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "floor"; 1111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 1112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "fround"; 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 1114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "round"; 1115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 1116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "abs"; 1117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 1118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "log"; 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "exp"; 1121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 1122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "sqrt"; 1123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "pow-half"; 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 1126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return "clz32"; 1127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 1129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return NULL; 1130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1131b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HUnaryMathOperation::InferRange(Zone* zone) { 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathClz32) return new(zone) Range(0, 32); 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32() && value()->HasRange()) { 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathAbs) { 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int upper = value()->range()->upper(); 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int lower = value()->range()->lower(); 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool spans_zero = value()->range()->CanBeZero(); 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Math.abs(kMinInt) overflows its representation, on which the 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction deopts. Hence clamp it to kMaxInt. 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_upper = upper == kMinInt ? kMaxInt : abs(upper); 1145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int abs_lower = lower == kMinInt ? kMaxInt : abs(lower); 1146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = 1147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) Range(spans_zero ? 0 : Min(abs_lower, abs_upper), 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Max(abs_lower, abs_upper)); 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In case of Smi representation, clamp Math.abs(Smi::kMinValue) to 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi::kMaxValue. 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) result->ClampToSmi(); 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1156b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1157b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1158b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1159958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryMathOperation::PrintDataTo( 1160958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << OpName() << " " << NameOf(value()); 1162b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1163b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1164b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1165958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1170958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HHasInstanceTypeAndBranch::PrintDataTo( 1171958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()); 1173b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (from_) { 11743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case FIRST_JS_RECEIVER_TYPE: 1175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == LAST_TYPE) os << " spec_object"; 1176b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1177b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_REGEXP_TYPE: 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_REGEXP_TYPE) os << " reg_exp"; 1179b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1180b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_ARRAY_TYPE: 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_ARRAY_TYPE) os << " array"; 1182b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case JS_FUNCTION_TYPE: 1184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_ == JS_FUNCTION_TYPE) os << " function"; 1185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1193958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeofIsAndBranch::PrintDataTo( 1194958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " == " << type_literal()->ToCString().get(); 1196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 1197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1200014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochnamespace { 1201014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1202014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochString* TypeOfString(HConstant* constant, Isolate* isolate) { 1203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate->heap(); 1204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasNumberValue()) return heap->number_string(); 1205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant->HasStringValue()) return heap->string_string(); 1206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant->GetInstanceType()) { 1207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case ODDBALL_TYPE: { 1208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Unique<Object> unique = constant->GetUnique(); 1209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->true_value()) || 1210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch unique.IsKnownGlobal(heap->false_value())) { 1211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->boolean_string(); 1212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (unique.IsKnownGlobal(heap->null_value())) { 1214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(unique.IsKnownGlobal(heap->undefined_value())); 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->undefined_string(); 1218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SYMBOL_TYPE: 1220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->symbol_string(); 1221014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case SIMD128_VALUE_TYPE: { 1222014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Unique<Map> map = constant->ObjectMap(); 1223014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \ 1224014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (map.IsKnownGlobal(heap->type##_map())) { \ 1225014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return heap->type##_string(); \ 1226014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch SIMD128_TYPES(SIMD128_TYPE) 1228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#undef SIMD128_TYPE 1229014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch UNREACHABLE(); 1230014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return nullptr; 1231014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 1233bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (constant->IsUndetectable()) return heap->undefined_string(); 1234014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (constant->IsCallable()) return heap->function_string(); 1235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return heap->object_string(); 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1239014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace 1240014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HTypeofIsAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value()); 1245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* type_string = TypeOfString(constant, isolate()); 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool same_type = type_literal_.IsKnownGlobal(type_string); 1247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = same_type ? FirstSuccessor() : SecondSuccessor(); 1248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (value()->representation().IsSpecialization()) { 1250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool number_type = 1251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type_literal_.IsKnownGlobal(isolate()->heap()->number_string()); 1252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = number_type ? FirstSuccessor() : SecondSuccessor(); 1253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 1256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1257b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1258b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1260958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMapValue::PrintDataTo(std::ostream& os) const { // NOLINT 1261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << NameOf(map()); 12623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMapValue::Canonicalize() { 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map()->IsConstant()) { 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_map = HConstant::cast(map()); 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HCheckMaps::CreateAndInsertAfter( 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->zone(), value(), c_map->MapValue(), 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_map->HasStableMapValue(), this); 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1276958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInPrepareMap::PrintDataTo(std::ostream& os) const { // NOLINT 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()); 12783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1281958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForInCacheArray::PrintDataTo(std::ostream& os) const { // NOLINT 1282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(enumerable()) << " " << NameOf(map()) << "[" << idx_ 1283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "]"; 12843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1287958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadFieldByIndex::PrintDataTo( 1288958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << " " << NameOf(index()); 12903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchLeftIsOnes(HValue* l, HValue* r, HValue** negated) { 1294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!l->EqualsInteger32Constant(~0)) return false; 1295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *negated = r; 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 12973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 12983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchNegationViaXor(HValue* instr, HValue** negated) { 1301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsBitwise()) return false; 1302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBitwise* b = HBitwise::cast(instr); 1303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (b->op() == Token::BIT_XOR) && 1304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (MatchLeftIsOnes(b->left(), b->right(), negated) || 1305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchLeftIsOnes(b->right(), b->left(), negated)); 13063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool MatchDoubleNegation(HValue* instr, HValue** arg) { 1310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* negated; 1311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MatchNegationViaXor(instr, &negated) && 1312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MatchNegationViaXor(negated, arg); 13133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13163ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HBitwise::Canonicalize() { 1317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsSmiOrInteger32()) return this; 13183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If x is an int32, then x & -1 == x, x | 0 == x and x ^ 0 == x. 13193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t nop_constant = (op() == Token::BIT_AND) ? -1 : 0; 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(nop_constant) && 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !right()->CheckFlag(kUint32)) { 13223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return right(); 13233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right()->EqualsInteger32Constant(nop_constant) && 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->CheckFlag(kUint32)) { 13263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return left(); 13273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimize double negation, a common pattern used for ToInt32(x). 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* arg; 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MatchDoubleNegation(this, &arg) && !arg->CheckFlag(kUint32)) { 1331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg; 1332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 13343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1337014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch// static 1338014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HAdd::New(Isolate* isolate, Zone* zone, HValue* context, 1339109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right, 1340014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ExternalAddType external_add_type) { 1341014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // For everything else, you should use the other factory method without 1342014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // ExternalAddType. 1343014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(external_add_type, AddOfExternalAndTagged); 1344109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HAdd(context, left, right, external_add_type); 1345014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 1346014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1347014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RepresentationFromInputs() { 1349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::External(); 1352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RepresentationFromInputs(); 1354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HAdd::RequiredInputRepresentation(int index) { 1358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index == 2) { 1359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 1360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_rep.IsExternal()) { 1361014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (external_add_type_ == AddOfExternalAndTagged) { 1362014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Tagged(); 1363014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 1364014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Representation::Integer32(); 1365014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HArithmeticBinaryOperation::RequiredInputRepresentation(index); 1369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsIdentityOperation(HValue* arg1, HValue* arg2, int32_t identity) { 1373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return arg1->representation().IsSpecialization() && 1374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch arg2->EqualsInteger32Constant(identity); 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 13783ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HAdd::Canonicalize() { 1379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adding 0 is an identity operation except in case of -0: -0 + 0 = +0 1380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0) && 1381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Left could be -0. 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return left(); 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 0) && 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !left()->representation().IsDouble()) { // Right could be -0. 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return right(); 1387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 13893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 13903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 13923ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HSub::Canonicalize() { 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 0)) return left(); 1394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMul::Canonicalize() { 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(right(), left(), 1)) return right(); 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HMul::MulMinusOne() { 1406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->EqualsInteger32Constant(-1) || 1407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->EqualsInteger32Constant(-1)) { 1408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HMod::Canonicalize() { 1416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HDiv::Canonicalize() { 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsIdentityOperation(left(), right(), 1)) return left(); 14223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14263ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HChange::Canonicalize() { 14273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return (from().Equals(to())) ? value() : this; 14283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14313ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HWrapReceiver::Canonicalize() { 14323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (HasNoUses()) return NULL; 1433014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (receiver()->type().IsJSReceiver()) { 14343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return receiver(); 14353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 14373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1440958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTypeof::PrintDataTo(std::ostream& os) const { // NOLINT 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()); 1442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1445014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HForceRepresentation::New(Isolate* isolate, Zone* zone, 1446014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 1447014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation representation) { 1448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value->IsConstant()) { 1449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c = HConstant::cast(value); 1450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c = c->CopyToRepresentation(representation, zone); 1451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c != NULL) return c; 1452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HForceRepresentation(value, representation); 1454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1457958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HForceRepresentation::PrintDataTo( 1458958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << representation().Mnemonic() << " " << NameOf(value()); 1460589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 1461589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1462589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 1463958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HChange::PrintDataTo(std::ostream& os) const { // NOLINT 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HUnaryOperation::PrintDataTo(os); 1465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << from().Mnemonic() << " to " << to().Mnemonic(); 1466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToSmi()) os << " truncating-smi"; 1468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CanTruncateToInt32()) os << " truncating-int32"; 1469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 1470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kAllowUndefinedAsNaN)) os << " allow-undefined-as-nan"; 1471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HUnaryMathOperation::Canonicalize() { 1476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == kMathRound || op() == kMathFloor) { 1477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* val = value(); 1478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->IsChange()) val = HChange::cast(val)->value(); 1479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().IsSmiOrInteger32()) { 1480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (val->representation().Equals(representation())) return val; 1481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(new(block()->zone()) HChange( 1482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch val, representation(), false, false)); 1483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14853b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (op() == kMathFloor && representation().IsSmiOrInteger32() && 14863b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->IsDiv() && value()->HasOneUse()) { 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = HDiv::cast(value()); 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* left = hdiv->left(); 1490014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (left->representation().IsInteger32() && !left->CheckFlag(kUint32)) { 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1492014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (left->IsChange() && HChange::cast(left)->from().IsInteger32() && 1493014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(left)->value()->CheckFlag(kUint32)) { 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = HChange::cast(left)->value(); 1496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(1).IsSmiOrInteger32()) { 1497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left = Prepend(new(block()->zone()) HChange( 1498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left, Representation::Integer32(), false, false)); 1499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* right = hdiv->right(); 1504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsInteger32Constant()) { 1505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(HConstant::cast(right)->CopyToRepresentation( 1506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), right->block()->zone())); 1507014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (right->representation().IsInteger32() && 1508014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !right->CheckFlag(kUint32)) { 1509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A value with an integer representation does not need to be transformed. 1510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (right->IsChange() && 1511014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HChange::cast(right)->from().IsInteger32() && 1512014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch !HChange::cast(right)->value()->CheckFlag(kUint32)) { 1513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // A change from an integer32 can be replaced by the integer32 value. 1514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = HChange::cast(right)->value(); 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (hdiv->observed_input_representation(2).IsSmiOrInteger32()) { 1516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right = Prepend(new(block()->zone()) HChange( 1517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right, Representation::Integer32(), false, false)); 1518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(HMathFloorOfDiv::New( 1523014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->zone(), context(), left, right)); 1524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckInstanceType::Canonicalize() { 1530014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if ((check_ == IS_JS_RECEIVER && value()->type().IsJSReceiver()) || 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_JS_ARRAY && value()->type().IsJSArray()) || 1532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (check_ == IS_STRING && value()->type().IsString())) { 1533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_ == IS_INTERNALIZED_STRING && value()->IsConstant()) { 1537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HConstant::cast(value())->HasInternalizedStringValue()) { 1538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return value(); 1539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 15423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 15433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 15443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1545257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckInterval(InstanceType* first, 1546257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType* last) { 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_interval_check()); 1548257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1549014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: 1550014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = FIRST_JS_RECEIVER_TYPE; 1551014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *last = LAST_JS_RECEIVER_TYPE; 1552257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1553257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_JS_ARRAY: 1554257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *first = *last = JS_ARRAY_TYPE; 1555257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1556014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1557014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch *first = *last = JS_DATE_TYPE; 1558014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return; 1559257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1560257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1561257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1562257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 1563257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1564257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1565257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid HCheckInstanceType::GetCheckMaskAndTag(uint8_t* mask, uint8_t* tag) { 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!is_interval_check()); 1567257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch switch (check_) { 1568257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case IS_STRING: 1569257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *mask = kIsNotStringMask; 1570257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch *tag = kStringTag; 1571257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: 1573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *mask = kIsNotStringMask | kIsNotInternalizedMask; 1574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *tag = kInternalizedTag; 1575257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return; 1576257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch default: 1577257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch UNREACHABLE(); 1578257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 1579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1580b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1581b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1582958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckMaps::PrintDataTo(std::ostream& os) const { // NOLINT 1583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(value()) << " [" << *maps()->at(0).handle(); 1584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 1585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 1586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 1588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsStabilityCheck()) os << "(stability-check)"; 1589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 1590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckMaps::Canonicalize() { 1594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsStabilityCheck() && maps_are_stable() && value()->IsConstant()) { 1595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_value = HConstant::cast(value()); 1596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->HasObjectMap()) { 1597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps()->size(); ++i) { 1598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_value->ObjectMap() == maps()->at(i)) { 1599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps()->size() > 1) { 1600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_maps(new(block()->graph()->zone()) UniqueSet<Map>( 1601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch maps()->at(i), block()->graph()->zone())); 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MarkAsStabilityCheck(); 1604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 16083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return this; 1610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1613958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckValue::PrintDataTo(std::ostream& os) const { // NOLINT 1614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << " " << Brief(*object().handle()); 1615b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1616b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1617b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHValue* HCheckValue::Canonicalize() { 1619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (value()->IsConstant() && 1620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(value())->EqualsUnique(object_)) ? NULL : this; 1621b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1622b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1623b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochconst char* HCheckInstanceType::GetCheckName() const { 16253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (check_) { 1626014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_RECEIVER: return "object"; 16273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_JS_ARRAY: return "array"; 1628014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case IS_JS_DATE: 1629014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return "date"; 16303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case IS_STRING: return "string"; 1631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case IS_INTERNALIZED_STRING: return "internalized_string"; 16323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 16333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 16343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ""; 16353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 16363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1638958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCheckInstanceType::PrintDataTo( 1639958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 1640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << GetCheckName() << " "; 1641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HUnaryOperation::PrintDataTo(os); 1642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1645958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HUnknownOSRValue::PrintDataTo(std::ostream& os) const { // NOLINT 1646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* type = "expression"; 1647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_local_index(index_)) type = "local"; 1648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_special_index(index_)) type = "special"; 1649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment_->is_parameter_index(index_)) type = "parameter"; 1650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << type << " @ " << index_; 1651b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1652b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1653b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16543ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HValue::InferRange(Zone* zone) { 1655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result; 1656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() || type().IsSmi()) { 1657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(Smi::kMinValue, Smi::kMaxValue); 1658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 1659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = new(zone) Range(); 1661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32)); 1662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(jkummerow): The range cannot be minus zero when the upper type 1663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // bound is Integer32. 1664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 166569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 166669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 166769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 166869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 16693ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HChange::InferRange(Zone* zone) { 167069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* input_range = value()->range(); 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsInteger32() && !value()->CheckFlag(HInstruction::kUint32) && 1672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsSmi() || 1673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (to().IsTagged() && 1674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange()))) { 167669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch set_type(HType::Smi()); 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearChangesFlag(kNewSpacePromotion); 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmiOrTagged() && 1680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range != NULL && 1681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->IsInSmiRange() && 1682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!SmiValuesAre32Bits() || 1683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !value()->CheckFlag(HValue::kUint32) || 1684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch input_range->upper() != kMaxInt)) { 1685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The Range class can't express upper bounds in the (kMaxInt, kMaxUint32] 1686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // interval, so we treat kMaxInt as a sentinel for this entire interval. 1687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1688b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 168969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (input_range != NULL) 16903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? input_range->Copy(zone) 16913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : HValue::InferRange(zone); 1692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!to().IsSmiOrInteger32() || 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !(CheckFlag(kAllUsesTruncatingToInt32) || 1694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckFlag(kAllUsesTruncatingToSmi))); 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to().IsSmi()) result->ClampToSmi(); 169669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 1697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1699b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17003ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HConstant::InferRange(Zone* zone) { 1701958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 17023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(int32_value_, int32_value_); 1703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch result->set_can_be_minus_zero(false); 1704b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1705b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 17063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1707b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1708b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1710014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochSourcePosition HPhi::position() const { return block()->first()->position(); } 1711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 17133ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HPhi::InferRange(Zone* zone) { 1714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (block()->IsLoopHeader()) { 1717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* range = r.IsSmi() 1718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? new(zone) Range(Smi::kMinValue, Smi::kMaxValue) 1719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : new(zone) Range(kMinInt, kMaxInt); 1720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* range = OperandAt(0)->range()->Copy(zone); 1723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 1; i < OperandCount(); ++i) { 1724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch range->Union(OperandAt(i)->range()); 1725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return range; 1727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1731b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1732b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1733b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17343ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HAdd::InferRange(Zone* zone) { 1735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1737b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1738b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->AddAndCheckOverflow(r, b) || 1741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1743b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeMinusZero()); 1748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1751b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17553ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSub::InferRange(Zone* zone) { 1756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->SubAndCheckOverflow(r, b) || 1762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) { 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBeMinusZero() && b->CanBeZero()); 1769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17763ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMul::InferRange(Zone* zone) { 1777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation r = representation(); 1778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmiOrInteger32()) { 1779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* b = right()->range(); 17813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* res = a->Copy(zone); 1782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!res->MulAndCheckOverflow(r, b) || 1783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (((r.IsInteger32() && CheckFlag(kAllUsesTruncatingToInt32)) || 1784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (r.IsSmi() && CheckFlag(kAllUsesTruncatingToSmi))) && 1785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MulMinusOne())) { 1786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Truncated int multiplication is too precise and therefore not the 1787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // same as converting to Double and back. 1788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle truncated integer multiplication by -1 special. 1789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(kCanOverflow); 1790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToSmi) && 1792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !CheckFlag(kAllUsesTruncatingToInt32) && 1793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ((a->CanBeZero() && b->CanBeNegative()) || 1794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeNegative() && b->CanBeZero()))); 1795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return res; 1796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1798b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 18023ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HDiv::InferRange(Zone* zone) { 1803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(); 1807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 1818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathFloorOfDiv::InferRange(Zone* zone) { 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsInteger32()) { 1826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 18283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Range* result = new(zone) Range(); 1829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeMinusZero() || 1831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (a->CanBeZero() && b->CanBeNegative()))); 1832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt)) { 1833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kLeftCanBeMinInt); 1834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1835b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1838b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1839b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBePositive()) { 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBePositive); 1842b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanOverflow); 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kCanBeDivByZero); 1850b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1851b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1852b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1854b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1855b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1856b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1857b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns the absolute value of its argument minus one, avoiding undefined 1859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// behavior at kMinInt. 1860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int32_t AbsMinus1(int32_t a) { return a < 0 ? -(a + 1) : (a - 1); } 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 18633ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HMod::InferRange(Zone* zone) { 1864b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (representation().IsInteger32()) { 1865b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Range* a = left()->range(); 1866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The magnitude of the modulus is bounded by the right operand. 1869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t positive_bound = Max(AbsMinus1(b->lower()), AbsMinus1(b->upper())); 1870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The result of the modulo operation has the sign of its left operand. 1872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool left_can_be_negative = a->CanBeMinusZero() || a->CanBeNegative(); 1873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = new(zone) Range(left_can_be_negative ? -positive_bound : 0, 1874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch a->CanBePositive() ? positive_bound : 0); 1875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(!CheckFlag(kAllUsesTruncatingToInt32) && 1877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_can_be_negative); 1878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->CanBeNegative()) { 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kLeftCanBeNegative); 1881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!a->Includes(kMinInt) || !b->Includes(-1)) { 1884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(HValue::kCanOverflow); 1885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!b->CanBeZero()) { 1888b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ClearFlag(HValue::kCanBeDivByZero); 1889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1890b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 1891b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 1893b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1894b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1895b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1896b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HMathMinMax::InferRange(Zone* zone) { 1898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmiOrInteger32()) { 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* a = left()->range(); 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* b = right()->range(); 1901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* res = a->Copy(zone); 1902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation_ == kMathMax) { 1903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMax(b); 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(operation_ == kMathMin); 1906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res->CombinedMin(b); 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return res; 1909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 1911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPushArguments::AddInput(HValue* value) { 1916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(OperandCount() - 1, value); 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1921958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HPhi::PrintTo(std::ostream& os) const { // NOLINT 1922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "["; 1923b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << NameOf(OperandAt(i)) << " "; 1925b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1926014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return os << " uses" << UseCount() 1927014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch << representation_from_indirect_uses().Mnemonic() << " " 1928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << TypeOf(this) << "]"; 1929b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1930b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1931b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1932b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddInput(HValue* value) { 1933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch inputs_.Add(NULL, value->block()->zone()); 1934b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetOperandAt(OperandCount() - 1, value); 1935b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Mark phis that may have 'arguments' directly or indirectly as an operand. 1936b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!CheckFlag(kIsArguments) && value->CheckFlag(kIsArguments)) { 1937b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SetFlag(kIsArguments); 1938b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1939b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1940b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1941b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 194244f0eee88ff00398ff7f715fab053374d808c90dSteve Blockbool HPhi::HasRealUses() { 1943257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 1944257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!it.value()->IsPhi()) return true; 194544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 194644f0eee88ff00398ff7f715fab053374d808c90dSteve Block return false; 194744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 194844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 194944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1950e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHValue* HPhi::GetRedundantReplacement() { 1951b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* candidate = NULL; 1952b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int count = OperandCount(); 1953b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int position = 0; 1954b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count && candidate == NULL) { 1955b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1956b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this) candidate = current; 1957b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1958b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (position < count) { 1959b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* current = OperandAt(position++); 1960b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (current != this && current != candidate) return NULL; 1961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(candidate != this); 1963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return candidate; 1964b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1965b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::DeleteFromGraph() { 1968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() != NULL); 1969b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch block()->RemovePhi(this); 1970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(block() == NULL); 1971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1973b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1974b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::InitRealUses(int phi_id) { 1975b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Initialize real uses. 1976b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch phi_id_ = phi_id; 1977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute a conservative approximation of truncating uses before inferring 1978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representations. The proper, exact computation will be done later, when 1979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inserting representation changes. 1980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToSmi); 1981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kTruncatingToInt32); 1982257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 1983257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* value = it.value(); 1984257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!value->IsPhi()) { 1985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = value->observed_input_representation(it.index()); 1986014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses_ = 1987014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_non_phi_uses().generalize(rep); 1988014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (rep.IsSmi() || rep.IsInteger32() || rep.IsDouble()) { 1989014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch has_type_feedback_from_uses_ = true; 1990014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1991014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 1992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 1993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d Phi is used by real #%d %s as %s\n", 1994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), value->id(), value->Mnemonic(), rep.Mnemonic()); 1995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsSimulate()) { 1997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToSmi)) { 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToSmi); 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->CheckFlag(kTruncatingToInt32)) { 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ClearFlag(kTruncatingToInt32); 2002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2004b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2005b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2006b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2007b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2008b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2009b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HPhi::AddNonPhiUsesFrom(HPhi* other) { 2010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 2011014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF( 2012014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "generalizing use representation '%s' of #%d Phi " 2013014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch "with uses of #%d Phi '%s'\n", 2014014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().Mnemonic(), id(), other->id(), 2015014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses().Mnemonic()); 2016b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2017b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2018014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses_ = 2019014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch representation_from_indirect_uses().generalize( 2020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch other->representation_from_non_phi_uses()); 2021b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2022b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::MergeWith(ZoneList<HSimulate*>* list) { 2025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!list->is_empty()) { 2026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HSimulate* from = list->RemoveLast(); 2027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ZoneList<HValue*>* from_values = &from->values_; 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < from_values->length(); ++i) { 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from->HasAssignedIndexAt(i)) { 2030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = from->GetAssignedIndexAt(i); 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasValueForIndex(index)) continue; 2032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddAssignedValue(index, from_values->at(i)); 20333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 2034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) { 2035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_--; 2036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddPushedValue(from_values->at(i)); 2038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch pop_count_ += from->pop_count_; 2042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch from->DeleteAndReplaceWith(NULL); 2043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2044b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2045b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2047958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HSimulate::PrintDataTo(std::ostream& os) const { // NOLINT 2048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "id=" << ast_id().ToInt(); 2049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " pop " << pop_count_; 2050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (values_.length() > 0) { 2051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pop_count_ > 0) os << " /"; 2052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values_.length() - 1; i >= 0; --i) { 2053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " var[" << GetAssignedIndexAt(i) << "] = "; 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " push "; 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(values_[i]); 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (i > 0) os << ","; 2060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 20613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 20633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 20643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 20653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HSimulate::ReplayEnvironment(HEnvironment* env) { 2067958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (is_done_with_replay()) return; 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->set_ast_id(ast_id()); 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Drop(pop_count()); 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = values()->length() - 1; i >= 0; --i) { 2072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values()->at(i); 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasAssignedIndexAt(i)) { 2074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Bind(GetAssignedIndexAt(i), value); 2075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env->Push(value); 2077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2079958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier set_done_with_replay(); 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2081b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2082b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic void ReplayEnvironmentNested(const ZoneList<HValue*>* values, 2084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HCapturedObject* other) { 2085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < values->length(); ++i) { 2086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = values->at(i); 2087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value->IsCapturedObject()) { 2088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HCapturedObject::cast(value)->capture_id() == other->capture_id()) { 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch values->at(i) = other; 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(HCapturedObject::cast(value)->values(), other); 2092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Replay captured objects by replacing all captured objects with the 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// same capture id in the current and all outer environments. 2100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCapturedObject::ReplayEnvironment(HEnvironment* env) { 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(env != NULL); 2102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (env != NULL) { 2103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReplayEnvironmentNested(env->values(), this); 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch env = env->outer(); 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2109958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCapturedObject::PrintDataTo(std::ostream& os) const { // NOLINT 2110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "#" << capture_id() << " "; 2111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HDematerializedObject::PrintDataTo(os); 2112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HEnterInlined::RegisterReturnTarget(HBasicBlock* return_target, 2116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone) { 2117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(return_target->IsInlineReturnTarget()); 2118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return_targets_.Add(return_target, zone); 2119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2122958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HEnterInlined::PrintDataTo(std::ostream& os) const { // NOLINT 21233b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << function()->debug_name()->ToCString().get(); 21243b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (syntactic_tail_call_mode() == TailCallMode::kAllow) { 21253b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch os << ", JSTailCall"; 21263b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 21273b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return os; 2128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic bool IsInteger32(double value) { 2132958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (value >= std::numeric_limits<int32_t>::min() && 2133958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier value <= std::numeric_limits<int32_t>::max()) { 2134958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double roundtrip_value = static_cast<double>(static_cast<int32_t>(value)); 2135958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return bit_cast<int64_t>(roundtrip_value) == bit_cast<int64_t>(value); 2136958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2137958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return false; 2138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2141014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHConstant::HConstant(Special special) 2142014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : HTemplateInstruction<0>(HType::TaggedNumber()), 2143014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_(Handle<Object>::null()), 2144014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch object_map_(Handle<Map>::null()), 2145014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_(HasDoubleValueField::encode(true) | 2146014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)), 2147014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_value_(0) { 2148014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK_EQ(kHoleNaN, special); 2149014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch std::memcpy(&double_value_, &kHoleNanInt64, sizeof(double_value_)); 2150014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Initialize(Representation::Double()); 2151014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 2152014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2153014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(Handle<Object> object, Representation r) 2155958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::FromValue(object)), 2156958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>::CreateUninitialized(object)), 2157958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2158014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_( 2159014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasStableMapValueField::encode(false) | 2160014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2161014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasDoubleValueField::encode(false) | 2162014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HasExternalReferenceValueField::encode(false) | 2163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsNotInNewSpaceField::encode(true) | 2164014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BooleanValueField::encode(object->BooleanValue()) | 2165014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch IsUndetectableField::encode(false) | IsCallableField::encode(false) | 2166014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceTypeField::encode(kUnknownInstanceType)) { 2167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsHeapObject()) { 2168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> heap_object = Handle<HeapObject>::cast(object); 2169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = heap_object->GetIsolate(); 2170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map(heap_object->map(), isolate); 2171958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update( 2172958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, !isolate->heap()->InNewSpace(*object)); 2173958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = InstanceTypeField::update(bit_field_, map->instance_type()); 2174958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = 2175958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::update(bit_field_, map->is_undetectable()); 2176014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch bit_field_ = IsCallableField::update(bit_field_, map->is_callable()); 2177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (map->is_stable()) object_map_ = Unique<Map>::CreateImmovable(map); 2178958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasStableMapValueField::update( 2179958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, 2180958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasMapValue() && Handle<Map>::cast(heap_object)->is_stable()); 2181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsNumber()) { 2183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double n = object->Number(); 2184958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool has_int32_value = IsInteger32(n); 2185958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasInt32ValueField::update(bit_field_, has_int32_value); 2186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_value_ = DoubleToInt32(n); 2187958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasSmiValueField::update( 2188958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, has_int32_value && Smi::IsValid(int32_value_)); 2189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch double_value_ = n; 2190958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasDoubleValueField::update(bit_field_, true); 2191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2197958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(Unique<Object> object, Unique<Map> object_map, 2198958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool has_stable_map_value, Representation r, HType type, 2199958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, bool boolean_value, 2200958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_undetectable, InstanceType instance_type) 2201958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(type), 2202958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(object), 2203958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(object_map), 2204958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(has_stable_map_value) | 2205958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | 2206958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(false) | 2207958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2208958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2209958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2210958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(boolean_value) | 2211958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(is_undetectable) | 2212958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(instance_type)) { 2213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object.handle().is_null()); 2214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!type.IsTaggedNumber() || type.IsNone()); 2215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2219958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(int32_t integer_value, Representation r, 2220958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2221958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2222958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2223958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2224958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(Smi::IsValid(integer_value)) | 2225958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(true) | 2226958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2227958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2228958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2229958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(integer_value != 0) | 2230958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2231958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2232958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int32_value_(integer_value), 2233958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double_value_(FastI2D(integer_value)) { 2234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2237958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2243958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHConstant::HConstant(double double_value, Representation r, 2244958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_not_in_new_space, Unique<Object> object) 2245958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : object_(object), 2246958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2247958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_(HasStableMapValueField::encode(false) | 2248958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasInt32ValueField::encode(IsInteger32(double_value)) | 2249958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(true) | 2250958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(false) | 2251958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(is_not_in_new_space) | 2252958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier BooleanValueField::encode(double_value != 0 && 2253958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier !std::isnan(double_value)) | 2254958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2255958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2256014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_value_(DoubleToInt32(double_value)), 2257958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier double_value_(double_value) { 2258958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = HasSmiValueField::update( 2259958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_, HasInteger32Value() && Smi::IsValid(int32_value_)); 2260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // It's possible to create a constant with a value in Smi-range but stored 2261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // in a (pre-existing) HeapNumber. See crbug.com/349878. 2262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool could_be_heapobject = r.IsTagged() && !object.handle().is_null(); 2263958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bool is_smi = HasSmiValue() && !could_be_heapobject; 2264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_type(is_smi ? HType::Smi() : HType::TaggedNumber()); 2265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(r); 2266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant::HConstant(ExternalReference reference) 2270958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier : HTemplateInstruction<0>(HType::Any()), 2271958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_(Unique<Object>(Handle<Object>::null())), 2272958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_map_(Handle<Map>::null()), 2273958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_( 2274958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasStableMapValueField::encode(false) | 2275958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasSmiValueField::encode(false) | HasInt32ValueField::encode(false) | 2276958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasDoubleValueField::encode(false) | 2277958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HasExternalReferenceValueField::encode(true) | 2278958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsNotInNewSpaceField::encode(true) | BooleanValueField::encode(true) | 2279958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectableField::encode(false) | 2280958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier InstanceTypeField::encode(kUnknownInstanceType)), 2281958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier external_reference_value_(reference) { 2282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Initialize(Representation::External()); 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HConstant::Initialize(Representation r) { 2287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsNone()) { 2288958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasSmiValue() && SmiValuesAre31Bits()) { 2289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Smi(); 2290958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasInteger32Value()) { 2291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Integer32(); 2292958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Double(); 2294958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::External(); 2296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = object_.handle(); 2298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->IsJSObject()) { 2299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to eagerly migrate JSObjects that have deprecated maps. 2300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSObject> js_object = Handle<JSObject>::cast(object); 2301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (js_object->map()->is_deprecated()) { 2302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch JSObject::TryMigrateInstance(js_object); 2303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = Representation::Tagged(); 2306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 2309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we have an existing handle, zap it, because it might be a heap 2310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // number which we must not re-use when copying this HConstant to 2311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Tagged representation later, because having Smi representation now 2312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // could cause heap object checks not to get emitted. 2313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_ = Unique<Object>(Handle<Object>::null()); 2314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2315014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (r.IsSmiOrInteger32() && object_.handle().is_null()) { 2316958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // If it's not a heap object, it can't be in new space. 2317958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier bit_field_ = IsNotInNewSpaceField::update(bit_field_, true); 2318958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 2319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_representation(r); 2320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kUseGVN); 2321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::ImmortalImmovable() const { 2325958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2328958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSpecialDouble()) { 2330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2333b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2334958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate()->heap(); 2340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->minus_zero_value())); 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.IsKnownGlobal(heap->nan_value())); 2342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define IMMORTAL_IMMOVABLE_ROOT(name) \ 2344958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier object_.IsKnownGlobal(heap->root(Heap::k##name##RootIndex)) || 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IMMORTAL_IMMOVABLE_ROOT_LIST(IMMORTAL_IMMOVABLE_ROOT) 2346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef IMMORTAL_IMMOVABLE_ROOT 2347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define INTERNALIZED_STRING(name, value) \ 2348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name()) || 2349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INTERNALIZED_STRING_LIST(INTERNALIZED_STRING) 2350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef INTERNALIZED_STRING 2351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define STRING_TYPE(NAME, size, name, Name) \ 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_.IsKnownGlobal(heap->name##_map()) || 2353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STRING_TYPE_LIST(STRING_TYPE) 2354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef STRING_TYPE 2355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false; 2356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HConstant::EmitAtUses() { 2360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsLinked()); 2361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (block()->graph()->has_osr() && 2362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch block()->graph()->IsStandardConstant(this)) { 2363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasNoUses()) return true; 2366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsCell()) return false; 2367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsDouble()) return false; 2368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsExternal()) return false; 2369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2370b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2371b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2372b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHConstant* HConstant::CopyToRepresentation(Representation r, Zone* zone) const { 2374958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsSmi() && !HasSmiValue()) return NULL; 2375958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsInteger32() && !HasInteger32Value()) return NULL; 2376958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsDouble() && !HasDoubleValue()) return NULL; 2377958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (r.IsExternal() && !HasExternalReferenceValue()) return NULL; 2378958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2379958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(int32_value_, r, NotInNewSpace(), object_); 2380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2381958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasDoubleValue()) { 2382958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(double_value_, r, NotInNewSpace(), object_); 2383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2384958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasExternalReferenceValue()) { 2385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HConstant(external_reference_value_); 2386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!object_.handle().is_null()); 2388958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return new (zone) HConstant(object_, object_map_, HasStableMapValue(), r, 2389958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier type_, NotInNewSpace(), BooleanValue(), 2390958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier IsUndetectable(), GetInstanceType()); 2391b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2392b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2393b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMaybe<HConstant*> HConstant::CopyToTruncatedInt32(Zone* zone) { 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2396958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2397958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) HConstant(int32_value_, Representation::Integer32(), 2398958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2399958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2400958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier res = new (zone) 2401958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier HConstant(DoubleToInt32(double_value_), Representation::Integer32(), 2402958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier NotInNewSpace(), object_); 2403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2404014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2405b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2406b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2407b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2408014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochMaybe<HConstant*> HConstant::CopyToTruncatedNumber(Isolate* isolate, 2409014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Zone* zone) { 2410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* res = NULL; 2411014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> handle = this->handle(isolate); 2412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (handle->IsBoolean()) { 2413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = handle->BooleanValue() ? 2414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone) HConstant(1) : new(zone) HConstant(0); 2415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (handle->IsUndefined()) { 2416014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch res = new (zone) HConstant(std::numeric_limits<double>::quiet_NaN()); 2417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (handle->IsNull()) { 2418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch res = new(zone) HConstant(0); 2419109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } else if (handle->IsString()) { 2420109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch res = new(zone) HConstant(String::ToNumber(Handle<String>::cast(handle))); 24218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 2422014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return res != NULL ? Just(res) : Nothing<HConstant*>(); 2423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2426958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HConstant::PrintDataTo(std::ostream& os) const { // NOLINT 2427958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (HasInteger32Value()) { 2428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << int32_value_ << " "; 2429958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasDoubleValue()) { 2430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << double_value_ << " "; 2431958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else if (HasExternalReferenceValue()) { 2432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << reinterpret_cast<void*>(external_reference_value_.address()) << " "; 2433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The handle() method is silently and lazily mutating the object. 2435014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Object> h = const_cast<HConstant*>(this)->handle(isolate()); 2436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Brief(*h) << " "; 2437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasStableMapValue()) os << "[stable-map] "; 2438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasObjectMap()) os << "[map " << *ObjectMap().handle() << "] "; 2439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2440958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (!NotInNewSpace()) os << "[new space] "; 2441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2445958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBinaryOperation::PrintDataTo(std::ostream& os) const { // NOLINT 2446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kCanOverflow)) os << " !"; 2448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CheckFlag(kBailoutOnMinusZero)) os << " -0?"; 2449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 2450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::InferRepresentation(HInferRepresentationPhase* h_infer) { 2454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation().IsSmi() && HasNonSmiUse()) { 2459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation( 2460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation::Integer32(), h_infer, "use requirements"); 2461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.IsNone()) { 2464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUses(); 2465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 2466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromOutput(); 2468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "output"); 2469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromInputs() { 2474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Determine the worst case of observed input representations and 2475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the currently assumed output representation. 2476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i <= 2; ++i) { 2478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_input_representation(i)); 2479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 2481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 2482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 2488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HBinaryOperation::IgnoreObservedOutputRepresentation( 2492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation current_rep) { 2493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ((current_rep.IsInteger32() && CheckUsesForFlag(kTruncatingToInt32)) || 2494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (current_rep.IsSmi() && CheckUsesForFlag(kTruncatingToSmi))) && 2495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Mul in Integer32 mode would be too precise. 2496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!this->IsMul() || HMul::cast(this)->MulMinusOne()); 24978b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 24988b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 2499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HBinaryOperation::RepresentationFromOutput() { 2501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 2502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Consider observed output representation, but ignore it if it's Double, 2503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this instruction is not a division, and all its uses are truncating 2504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to Integer32. 2505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (observed_output_representation_.is_more_general_than(rep) && 2506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !IgnoreObservedOutputRepresentation(rep)) { 2507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return observed_output_representation_; 2508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 2510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2512b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HBinaryOperation::AssumeRepresentation(Representation r) { 2514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(1, r); 2515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch set_observed_input_representation(2, r); 2516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue::AssumeRepresentation(r); 2517b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2518b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2519b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HMathMinMax::InferRepresentation(HInferRepresentationPhase* h_infer) { 2521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 2522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation new_rep = RepresentationFromInputs(); 2523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "inputs"); 2524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not care about uses. 2525b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2526b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2527b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25283ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HBitwise::InferRange(Zone* zone) { 2529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op() == Token::BIT_XOR) { 2530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left()->HasRange() && right()->HasRange()) { 2531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The maximum value has the high bit, and all bits below, set: 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (1 << high) - 1. 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the range can be negative, the minimum int is a negative number with 2534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the high bit, and all bits below, unset: 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -(1 << high). 2536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If it cannot be negative, conservatively choose 0 as minimum int. 2537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_upper = left()->range()->upper(); 2538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t left_lower = left()->range()->lower(); 2539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_upper = right()->range()->upper(); 2540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t right_lower = right()->range()->lower(); 2541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_upper < 0) left_upper = ~left_upper; 2543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_lower < 0) left_lower = ~left_lower; 2544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_upper < 0) right_upper = ~right_upper; 2545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_lower < 0) right_lower = ~right_lower; 2546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int high = MostSignificantBit( 2548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<uint32_t>( 2549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left_upper | left_lower | right_upper | right_lower)); 2550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int64_t limit = 1; 2552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch limit <<= high; 2553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t min = (left()->range()->CanBeNegative() || 2554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch right()->range()->CanBeNegative()) 2555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? static_cast<int32_t>(-limit) : 0; 2556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(min, static_cast<int32_t>(limit - 1)); 2557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 25623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const int32_t kDefaultMask = static_cast<int32_t>(0xffffffff); 2563e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t left_mask = (left()->range() != NULL) 2564e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? left()->range()->Mask() 25653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 2566e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int32_t right_mask = (right()->range() != NULL) 2567e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ? right()->range()->Mask() 25683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : kDefaultMask; 25693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result_mask = (op() == Token::BIT_AND) 25703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left_mask & right_mask 25713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : left_mask | right_mask; 2572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result_mask >= 0) return new(zone) Range(0, result_mask); 2573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Range* result = HValue::InferRange(zone); 2575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result->set_can_be_minus_zero(false); 2576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 2577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2578b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25803ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HSar::InferRange(Zone* zone) { 2581b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2582b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2583b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2584e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 25853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 25863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2587e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Sar(c->Integer32Value()); 2588b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2589b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 25913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25953ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShr::InferRange(Zone* zone) { 259669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (right()->IsConstant()) { 259769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HConstant* c = HConstant::cast(right()); 259869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (c->HasInteger32Value()) { 259969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch int shift_count = c->Integer32Value() & 0x1f; 260069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (left()->range()->CanBeNegative()) { 260169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Only compute bounds if the result always fits into an int32. 260269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return (shift_count >= 1) 26033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? new(zone) Range(0, 26043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<uint32_t>(0xffffffff) >> shift_count) 26053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 260669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else { 260769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // For positive inputs we can use the >> operator. 260869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Range* result = (left()->range() != NULL) 26093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 261169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->Sar(c->Integer32Value()); 261269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 261369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 261469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 261569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 26163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 261769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 261869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 261969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 26203ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochRange* HShl::InferRange(Zone* zone) { 2621b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (right()->IsConstant()) { 2622b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HConstant* c = HConstant::cast(right()); 2623b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (c->HasInteger32Value()) { 2624e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Range* result = (left()->range() != NULL) 26253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? left()->range()->Copy(zone) 26263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : new(zone) Range(); 2627e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch result->Shl(c->Integer32Value()); 2628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 2629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 26313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 2632b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadNamedField::InferRange(Zone* zone) { 2636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger8()) { 2637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger8()) { 2640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsInteger16()) { 2643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().representation().IsUInteger16()) { 2646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 2647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access().IsStringLength()) { 2649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(0, String::kMaxLength); 2650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::InferRange(zone); 2652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRange* HLoadKeyed::InferRange(Zone* zone) { 26563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (elements_kind()) { 2657014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT8_ELEMENTS: 2658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt8, kMaxInt8); 2659014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_ELEMENTS: 2660014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT8_CLAMPED_ELEMENTS: 2661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt8, kMaxUInt8); 2662014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case INT16_ELEMENTS: 2663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinInt16, kMaxInt16); 2664014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case UINT16_ELEMENTS: 2665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) Range(kMinUInt16, kMaxUInt16); 26663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 26673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return HValue::InferRange(zone); 26683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 26693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 26703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2672958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareGeneric::PrintDataTo(std::ostream& os) const { // NOLINT 2673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBinaryOperation::PrintDataTo(os); 2675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2678958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringCompareAndBranch::PrintDataTo( 2679958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " "; 2681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2685958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareNumericAndBranch::PrintDataTo( 2686958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(token()) << " " << NameOf(left()) << " " << NameOf(right()); 2688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2692958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HCompareObjectEqAndBranch::PrintDataTo( 2693958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(left()) << " " << NameOf(right()); 2695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HControlInstruction::PrintDataTo(os); 2696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareObjectEqAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left()->IsConstant() && right()->IsConstant()) { 2705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(left())->DataEquals(HConstant::cast(right())) 2706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsStringAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_successor_index() != kNoKnownSuccessorIndex) { 2716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SuccessorAt(known_successor_index()); 2717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->HasStringValue() 2721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsString()) { 2725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = FirstSuccessor(); 2726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (value()->type().IsSmi() || 2729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsNull() || 2730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsBoolean() || 2731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value()->type().IsUndefined() || 2732014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch value()->type().IsJSReceiver()) { 2733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = SecondSuccessor(); 2734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HIsUndetectableAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = HConstant::cast(value())->IsUndetectable() 2744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 27473b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsNull() || value()->type().IsUndefined()) { 27483b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = FirstSuccessor(); 27493b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 27503b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 27513b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch if (value()->type().IsBoolean() || 27523b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsSmi() || 27533b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsString() || 27543b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch value()->type().IsJSReceiver()) { 27553b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch *block = SecondSuccessor(); 27563b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch return true; 27573b9bc31999c9787eb726ecdbfd5796bfdec32a18Ben Murdoch } 2758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HHasInstanceTypeAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && value()->IsConstant()) { 2765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceType type = HConstant::cast(value())->GetInstanceType(); 2766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (from_ <= type) && (type <= to_) 2767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareHoleAndBranch::InferRepresentation( 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(value()->representation()); 2778b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HCompareNumericAndBranch::KnownSuccessorBlock(HBasicBlock** block) { 2782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left() == right() && 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch left()->representation().IsSmiOrInteger32()) { 2784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = (token() == Token::EQ || 2785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::EQ_STRICT || 2786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::LTE || 2787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch token() == Token::GTE) 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? FirstSuccessor() : SecondSuccessor(); 2789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *block = NULL; 2792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 27933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 27943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 27953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2796958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HGoto::PrintDataTo(std::ostream& os) const { // NOLINT 2797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << *SuccessorAt(0); 27983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 27993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 28003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCompareNumericAndBranch::InferRepresentation( 2802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInferRepresentationPhase* h_infer) { 2803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation left_rep = left()->representation(); 2804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation right_rep = right()->representation(); 2805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_left = observed_input_representation(0); 2806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation observed_right = observed_input_representation(1); 2807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 2809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_left); 2810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(observed_right); 2811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone() || rep.IsSmiOrInteger32()) { 2812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_rep.IsTagged()) rep = rep.generalize(left_rep); 2813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!right_rep.IsTagged()) rep = rep.generalize(right_rep); 2814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Double(); 2816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 28193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // According to the ES5 spec (11.9.3, 11.8.5), Equality comparisons (==, === 28203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // and !=) have special handling of undefined, e.g. undefined == undefined 28213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // is 'true'. Relational comparisons have a different semantic, first 28223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // calling ToPrimitive() on their arguments. The standard Crankshaft 2823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // tagged-to-double conversion to ensure the HCompareNumericAndBranch's 2824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // inputs are doubles caused 'undefined' to be converted to NaN. That's 2825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // compatible out-of-the box with ordered relational comparisons (<, >, <=, 28263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // >=). However, for equality comparisons (and for 'in' and 'instanceof'), 28273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // it is not consistent with the spec. For example, it would cause undefined 28283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // == undefined (should be true) to be evaluated as NaN == NaN 28293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // (false). Therefore, any comparisons other than ordered relational 28303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // comparisons must cause a deopt when one of their arguments is undefined. 28313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // See also v8:1434 2832109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (Token::IsOrderedRelationalCompareOp(token_)) { 2833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetFlag(kAllowUndefinedAsNaN); 28343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2835b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ChangeRepresentation(rep); 2837b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2838b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2839b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2840958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HParameter::PrintDataTo(std::ostream& os) const { // NOLINT 2841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << index(); 2842b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2844b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2845958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 2846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_; 2847b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (maps() != NULL) { 2849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " [" << *maps()->at(0).handle(); 2850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < maps()->size(); ++i) { 2851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "," << *maps()->at(i).handle(); 285244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 2853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 285444f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 285544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 285844f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 285944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 286044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2861958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadNamedGeneric::PrintDataTo( 2862958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> n = Handle<String>::cast(name()); 2864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "." << n->ToCString().get(); 286544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 286644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 286744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2868958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 2869014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 2870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 2871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2872014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 2873014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 2874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 2875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 287669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 2878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 2879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "]"; 288069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (HasDependency()) os << " " << NameOf(dependency()); 2882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (RequiresHoleCheck()) os << " check_hole"; 2883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 288469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 288569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 288669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 2888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 2889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 2890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 2891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 2892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t base_offset = BaseOffsetField::decode(bit_field_); 2893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset; 2894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 2895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 2896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset = addition_result.ValueOrDie(); 2897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!BaseOffsetField::is_valid(base_offset)) return false; 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bit_field_ = BaseOffsetField::update(bit_field_, base_offset); 2899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2900b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2901b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2902b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::UsesMustHandleHole() const { 2904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2908014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hole_mode() == ALLOW_RETURN_HOLE) { 2913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return AllUsesCanTreatHoleAsNaN(); 2915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastDoubleElementsKind(elements_kind())) { 2920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Holes are only returned as tagged values. 2924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!representation().IsTagged()) { 29253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return false; 29263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2928257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 2929257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch HValue* use = it.value(); 2930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use->IsChange()) return false; 2931257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 29323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 2934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::AllUsesCanTreatHoleAsNaN() const { 2938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return IsFastDoubleElementsKind(elements_kind()) && 2939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CheckUsesForFlag(HValue::kAllowUndefinedAsNaN); 2940257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2941257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2942257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HLoadKeyed::RequiresHoleCheck() const { 2944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(elements_kind())) { 2945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2948014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsFixedTypedArrayElementsKind(elements_kind())) { 2949014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 2950014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2951014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2952014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { 2953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 2954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return !UsesMustHandleHole(); 29573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 29583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 29593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2960958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadKeyedGeneric::PrintDataTo( 2961958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "[" << NameOf(key()) << "]"; 2963e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 2964e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2965e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 29663ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHValue* HLoadKeyedGeneric::Canonicalize() { 29673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Recognize generic keyed loads that use property name generated 29683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by for-in statement as a key and rewrite them into fast property load 29693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // by index. 2970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key()->IsLoadKeyed()) { 2971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HLoadKeyed* key_load = HLoadKeyed::cast(key()); 2972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_load->elements()->IsForInCacheArray()) { 29733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* names_cache = 2974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HForInCacheArray::cast(key_load->elements()); 29753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 29763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (names_cache->enumerable() == object()) { 29773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HForInCacheArray* index_cache = 29783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch names_cache->index_cache(); 2979014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HCheckMapValue* map_check = HCheckMapValue::New( 2980014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 2981014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->GetInvalidContext(), object(), 2982014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch names_cache->map()); 2983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HInstruction* index = HLoadKeyed::New( 2984014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->isolate(), block()->graph()->zone(), 2985014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch block()->graph()->GetInvalidContext(), index_cache, key_load->key(), 2986014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch key_load->key(), nullptr, key_load->elements_kind()); 29873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch map_check->InsertBefore(this); 29883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index->InsertBefore(this); 2989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Prepend(new(block()->zone()) HLoadFieldByIndex( 2990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object(), index)); 29913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 29943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 29953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return this; 29963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 29973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 29983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2999958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreNamedGeneric::PrintDataTo( 3000958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> n = Handle<String>::cast(name()); 3002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "." << n->ToCString().get() << " = " 3003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << NameOf(value()); 30041e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 30051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3007958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreNamedField::PrintDataTo(std::ostream& os) const { // NOLINT 3008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()) << access_ << " = " << NameOf(value()); 3009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsWriteBarrier()) os << " (write-barrier)"; 3010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (has_transition()) os << " (transition map " << *transition_map() << ")"; 3011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 3012b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3013b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3014b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3015958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreKeyed::PrintDataTo(std::ostream& os) const { // NOLINT 3016014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!is_fixed_typed_array()) { 3017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()); 3018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3019014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(elements_kind() >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && 3020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch elements_kind() <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND); 3021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(elements()) << "." << ElementsKindToString(elements_kind()); 3022b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[" << NameOf(key()); 3025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsDehoisted()) os << " + " << base_offset(); 3026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "] = " << NameOf(value()); 30273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 30283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3030958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreKeyedGeneric::PrintDataTo( 3031958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(object()) << "[" << NameOf(key()) 3033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3034e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3035e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3036e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3037958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HTransitionElementsKind::PrintDataTo( 3038958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(object()); 3040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = original_map().handle()->elements_kind(); 3041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = transitioned_map().handle()->elements_kind(); 3042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " " << *original_map().handle() << " [" 3043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(from_kind)->name() << "] -> " 3044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << *transitioned_map().handle() << " [" 3045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << ElementsAccessor::ForKind(to_kind)->name() << "]"; 3046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) os << " (simple)"; 3047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os; 30483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3051958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadGlobalGeneric::PrintDataTo( 3052958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << name()->ToCString().get() << " "; 30548b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 30558b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 30568b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3057958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HInnerAllocatedObject::PrintDataTo( 3058958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(base_object()) << " offset "; 3060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return offset()->PrintTo(os); 3061b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3062b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3063b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3064958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HLoadContextSlot::PrintDataTo(std::ostream& os) const { // NOLINT 3065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(value()) << "[" << slot_index() << "]"; 30661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 30671e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3069958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStoreContextSlot::PrintDataTo( 3070958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier std::ostream& os) const { // NOLINT 3071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << NameOf(context()) << "[" << slot_index() 3072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch << "] = " << NameOf(value()); 3073b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 3074b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3075b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3076b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Implementation of type inference and type conversions. Calculates 3077b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// the inferred type of this instruction based on the input operands. 3078b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3079e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHType HValue::CalculateInferredType() { 3080b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return type_; 3081b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3082b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3083b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HPhi::CalculateInferredType() { 3085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (OperandCount() == 0) return HType::Tagged(); 3086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType result = OperandAt(0)->type(); 3087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 1; i < OperandCount(); ++i) { 3088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HType current = OperandAt(i)->type(); 3089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result = result.Combine(current); 3090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 3092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHType HChange::CalculateInferredType() { 3096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from().IsDouble() && to().IsTagged()) return HType::HeapNumber(); 3097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return type(); 3098b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3099b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromInputs() { 3102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (SupportsFlexibleFloorAndRound() && 3103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (op_ == kMathFloor || op_ == kMathRound)) { 3104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Floor and Round always take a double input. The integral result can be 3105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // used as an integer or a double. Infer the representation from the uses. 3106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = representation(); 3109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If any of the actual input representation is more general than what we 3110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have so far but not Tagged, use that representation instead. 3111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation input_rep = value()->representation(); 3112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!input_rep.IsTagged()) { 3113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = rep.generalize(input_rep); 3114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3116b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3117b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3118b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HAllocate::HandleSideEffectDominator(GVNFlag side_effect, 3120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator) { 3121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(side_effect == kNewSpacePromotion); 3122bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch DCHECK(!IsAllocationFolded()); 3123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Zone* zone = block()->zone(); 3124014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Isolate* isolate = block()->isolate(); 3125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_use_allocation_folding) return false; 3126b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Try to fold allocations together with their dominating allocations. 3128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator->IsAllocate()) { 3129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s)\n", 3131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3135b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check whether we are folding within the same block for local folding. 3137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_use_local_allocation_folding && dominator->block() != block()) { 3138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), crosses basic blocks\n", 3140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3143b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3144b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HAllocate* dominator_allocate = HAllocate::cast(dominator); 3146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* dominator_size = dominator_allocate->size(); 3147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* current_size = size(); 3148b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(hpayer): Add support for non-constant allocation in dominator. 3150bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!current_size->IsInteger32Constant() || 3151bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch !dominator_size->IsInteger32Constant()) { 3152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), " 3154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "dynamic allocation size in dominator\n", 3155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator->id(), dominator->Mnemonic()); 3156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3160014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3161014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!IsFoldable(dominator_allocate)) { 3162014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (FLAG_trace_allocation_folding) { 3163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PrintF("#%d (%s) cannot fold into #%d (%s), different spaces\n", id(), 3164014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Mnemonic(), dominator->id(), dominator->Mnemonic()); 3165014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3169014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK( 3170014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsNewSpaceAllocation() && dominator_allocate->IsNewSpaceAllocation()) || 3171014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (IsOldSpaceAllocation() && dominator_allocate->IsOldSpaceAllocation())); 3172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // First update the size of the dominator allocate instruction. 3174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size = dominator_allocate->size(); 3175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t original_object_size = 3176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant::cast(dominator_size)->GetInteger32Constant(); 3177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t dominator_size_constant = original_object_size; 3178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((dominator_size_constant & kDoubleAlignmentMask) != 0) { 3181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_size_constant += kDoubleSize / 2; 3182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3185bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch int32_t current_size_max_value = size()->GetInteger32Constant(); 3186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t new_dominator_size = dominator_size_constant + current_size_max_value; 31873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we clear the first word after folded memory, we cannot use the 3189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // whole Page::kMaxRegularHeapObjectSize memory. 3190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (new_dominator_size > Page::kMaxRegularHeapObjectSize - kPointerSize) { 3191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d (%s) cannot fold into #%d (%s) due to size: %d\n", 3193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), dominator_allocate->id(), 3194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->Mnemonic(), new_dominator_size); 3195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 3197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 31983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3199bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HInstruction* new_dominator_size_value = HConstant::CreateAndInsertBefore( 3200bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch isolate, zone, context(), new_dominator_size, Representation::None(), 3201bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate); 32021e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->UpdateSize(new_dominator_size_value); 3204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) { 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!dominator_allocate->MustAllocateDoubleAligned()) { 3207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dominator_allocate->MakeDoubleAligned(); 3208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3211bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (IsAllocationFoldingDominator()) { 3212bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch DeleteAndReplaceWith(dominator_allocate); 3213bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (FLAG_trace_allocation_folding) { 3214bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF( 3215bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch "#%d (%s) folded dominator into #%d (%s), new dominator size: %d\n", 3216bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch id(), Mnemonic(), dominator_allocate->id(), 3217bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->Mnemonic(), new_dominator_size); 3218bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3219bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch return true; 3220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3221b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3222bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (!dominator_allocate->IsAllocationFoldingDominator()) { 3223bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate* first_alloc = 3224bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch HAllocate::New(isolate, zone, dominator_allocate->context(), 3225bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_size, dominator_allocate->type(), 3226bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch IsNewSpaceAllocation() ? NOT_TENURED : TENURED, 3227bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch JS_OBJECT_TYPE, block()->graph()->GetConstant0()); 3228bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->InsertAfter(dominator_allocate); 3229bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->ReplaceAllUsesWith(first_alloc); 3230bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->MakeAllocationFoldingDominator(); 3231bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->MakeFoldedAllocation(dominator_allocate); 3232bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch if (FLAG_trace_allocation_folding) { 3233bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) inserted for dominator #%d (%s)\n", first_alloc->id(), 3234bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch first_alloc->Mnemonic(), dominator_allocate->id(), 3235bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch dominator_allocate->Mnemonic()); 3236bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3237bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch } 3238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3239bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch MakeFoldedAllocation(dominator_allocate); 3240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_allocation_folding) { 3242bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch PrintF("#%d (%s) folded into #%d (%s), new dominator size: %d\n", id(), 3243bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch Mnemonic(), dominator_allocate->id(), dominator_allocate->Mnemonic(), 3244bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8Ben Murdoch new_dominator_size); 3245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3247b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3248b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3249b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3250958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HAllocate::PrintDataTo(std::ostream& os) const { // NOLINT 3251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << NameOf(size()) << " ("; 3252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsNewSpaceAllocation()) os << "N"; 3253014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (IsOldSpaceAllocation()) os << "P"; 3254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustAllocateDoubleAligned()) os << "A"; 3255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (MustPrefillWithFiller()) os << "F"; 3256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3257b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3258b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::TryIncreaseBaseOffset(uint32_t increase_by_value) { 3261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The base offset is usually simply the size of the array header, except 3262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with dehoisting adds an addition offset due to a array index key 3263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // manipulation, in which case it becomes (array header size + 3264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // constant-offset-from-key * kPointerSize) 3265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::base::internal::CheckedNumeric<uint32_t> addition_result = base_offset_; 3266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch addition_result += increase_by_value; 3267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!addition_result.IsValid()) return false; 3268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset_ = addition_result.ValueOrDie(); 3269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HStoreKeyed::NeedsCanonicalization() { 3274014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch switch (value()->opcode()) { 3275014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kLoadKeyed: { 3276014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ElementsKind load_kind = HLoadKeyed::cast(value())->elements_kind(); 3277014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return IsFixedFloatElementsKind(load_kind); 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3279014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kChange: { 3280014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Representation from = HChange::cast(value())->from(); 3281014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return from.IsTagged() || from.IsHeapObject(); 3282014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3283014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kLoadNamedField: 3284014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case kPhi: { 3285014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Better safe than sorry... 3286014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return true; 3287b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3288014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch default: 3289014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return false; 3290b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3291b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3292b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3293b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3294014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_INT(val) \ 3295014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<int32_t>(val)) 3296014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define H_CONSTANT_DOUBLE(val) \ 3297014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant::New(isolate, zone, context, static_cast<double>(val)) 3298b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3299109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HInstr, op) \ 3300109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3301109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3302109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3303109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3304109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3305109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3306109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch double double_res = c_left->DoubleValue() op c_right->DoubleValue(); \ 3307109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (IsInt32Double(double_res)) { \ 3308109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(double_res); \ 3309109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3310109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_DOUBLE(double_res); \ 3311109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3312109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3313109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3314014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3315b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HAdd, +) 3317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HMul, *) 3318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR(HSub, -) 3319257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef DEFINE_NEW_H_SIMPLE_ARITHMETIC_INSTR 3321257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3323014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringAdd::New(Isolate* isolate, Zone* zone, HValue* context, 3324014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, 3325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PretenureFlag pretenure_flag, 3326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddFlags flags, 3327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<AllocationSite> allocation_site) { 3328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasStringValue() && c_right->HasStringValue()) { 3332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> left_string = c_left->StringValue(); 3333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> right_string = c_right->StringValue(); 3334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prevent possible exception by invalid string length. 3335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_string->length() + right_string->length() < String::kMaxLength) { 3336014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MaybeHandle<String> concat = isolate->factory()->NewConsString( 3337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch c_left->StringValue(), c_right->StringValue()); 3338014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, concat.ToHandleChecked()); 3339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3341b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3342014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return new (zone) 3343014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HStringAdd(context, left, right, pretenure_flag, flags, allocation_site); 3344b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3345b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3346b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3347958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HStringAdd::PrintDataTo(std::ostream& os) const { // NOLINT 3348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_BOTH) { 3349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckBoth"; 3350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_LEFT) { 3351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckLeft"; 3352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if ((flags() & STRING_ADD_CHECK_BOTH) == STRING_ADD_CHECK_RIGHT) { 3353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "_CheckRight"; 3354b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::PrintDataTo(os); 3356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << " ("; 3357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (pretenure_flag() == NOT_TENURED) 3358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "N"; 3359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch else if (pretenure_flag() == TENURED) 3360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "D"; 3361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << ")"; 3362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3365014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HStringCharFromCode::New(Isolate* isolate, Zone* zone, 3366014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* char_code) { 3367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && char_code->IsConstant()) { 3368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_code = HConstant::cast(char_code); 3369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_code->HasNumberValue()) { 3370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isfinite(c_code->DoubleValue())) { 3371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t code = c_code->NumberValueAsInteger32() & 0xffff; 3372014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New( 3373014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate, zone, context, 3374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->factory()->LookupSingleCharacterStringFromCode(code)); 3375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3376014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return HConstant::New(isolate, zone, context, 3377014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate->factory()->empty_string()); 3378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HStringCharFromCode(context, char_code); 3381b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3382b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3384014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HUnaryMathOperation::New(Isolate* isolate, Zone* zone, 3385014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, HValue* value, 3386014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch BuiltinFunctionId op) { 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch do { 3388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!FLAG_fold_constants) break; 3389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!value->IsConstant()) break; 3390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = HConstant::cast(value); 3391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!constant->HasNumberValue()) break; 3392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d = constant->DoubleValue(); 3393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isnan(d)) { // NaN poisons everything. 3394014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (std::isinf(d)) { // +Infinity and -Infinity. 3397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 3398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 3399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : 0.0); 3400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 3401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3402014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE( 3403014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch (d > 0.0) ? d : std::numeric_limits<double>::quiet_NaN()); 3404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d > 0.0) ? d : -d); 3407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(d); 3411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: 3412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(32); 3413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (op) { 3419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathExp: 3420014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch lazily_initialize_fast_exp(isolate); 3421014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(fast_exp(d, isolate)); 3422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathLog: 3423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(std::log(d)); 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathSqrt: 3425014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch lazily_initialize_fast_sqrt(isolate); 3426014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(fast_sqrt(d, isolate)); 3427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathPowHalf: 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(power_double_double(d, 0.5)); 3429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathAbs: 3430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d); 3431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathRound: 3432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // -0.5 .. -0.0 round to -0.0. 3433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0); 3434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Doubles are represented as Significant * 2 ^ Exponent. If the 3435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Exponent is not negative, the double value is already an integer. 3436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (Double(d).Exponent() >= 0) return H_CONSTANT_DOUBLE(d); 3437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d + 0.5)); 3438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFround: 3439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<double>(static_cast<float>(d))); 3440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathFloor: 3441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(Floor(d)); 3442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMathClz32: { 3443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t i = DoubleToUint32(d); 3444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(base::bits::CountLeadingZeros32(i)); 3445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } while (false); 3451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HUnaryMathOperation(context, value, op); 3452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HUnaryMathOperation::RepresentationFromUses() { 3456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op_ != kMathFloor && op_ != kMathRound) { 3457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HValue::RepresentationFromUses(); 3458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The instruction can have an int32 or double output. Prefer a double 3461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation if there are double uses. 3462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool use_double = false; 3463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int use_index = it.index(); 3467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_observed = use->observed_input_representation(use_index); 3468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep_required = use->RequiredInputRepresentation(use_index); 3469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use_double |= (rep_observed.IsDouble() || rep_required.IsDouble()); 3470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_double && !FLAG_trace_representation) { 3471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Having seen one double is enough. 3472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_representation) { 3475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!rep_required.IsDouble() || rep_observed.IsDouble()) { 3476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is used by #%d %s as %s%s\n", 3477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_observed.Mnemonic(), 3479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("#%d %s is required by #%d %s as %s%s\n", 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch id(), Mnemonic(), use->id(), 3483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch use->Mnemonic(), rep_required.Mnemonic(), 3484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (use->CheckFlag(kTruncatingToInt32) ? "-trunc" : "")); 3485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3487b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return use_double ? Representation::Double() : Representation::Integer32(); 3489b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3490b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3491b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3492014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HPower::New(Isolate* isolate, Zone* zone, HValue* context, 3493014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right) { 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3498014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch double result = 3499014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch power_helper(isolate, c_left->DoubleValue(), c_right->DoubleValue()); 3500014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::isnan(result) 3501014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ? std::numeric_limits<double>::quiet_NaN() 3502014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : result); 3503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HPower(left, right); 35063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3509014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMathMinMax::New(Isolate* isolate, Zone* zone, HValue* context, 3510014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* left, HValue* right, Operation op) { 3511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 3512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_left = HConstant::cast(left); 3513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_right = HConstant::cast(right); 3514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_left->HasNumberValue() && c_right->HasNumberValue()) { 3515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_left = c_left->DoubleValue(); 3516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double d_right = c_right->DoubleValue(); 3517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == kMathMin) { 3518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_right); 3519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_left); 3520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_left 3523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_right); 3524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left < d_right) return H_CONSTANT_DOUBLE(d_right); 3527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left > d_right) return H_CONSTANT_DOUBLE(d_left); 3528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (d_left == d_right) { 3529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Handle +0 and -0. 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE((Double(d_left).Sign() == -1) ? d_right 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : d_left); 3532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // All comparisons failed, must be NaN. 3535014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return H_CONSTANT_DOUBLE(std::numeric_limits<double>::quiet_NaN()); 3536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HMathMinMax(context, left, right, op); 3539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 35403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3541014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HMod::New(Isolate* isolate, Zone* zone, HValue* context, 3542109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_left->HasInteger32Value() && c_right->HasInteger32Value()) { 35473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t dividend = c_left->Integer32Value(); 35483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t divisor = c_right->Integer32Value(); 3549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dividend == kMinInt && divisor == -1) { 3550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 3551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 35523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (divisor != 0) { 35533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t res = dividend % divisor; 35543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((res == 0) && (dividend < 0)) { 35553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(-0.0); 35563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(res); 35583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3561109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HMod(context, left, right); 35623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3564014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HDiv::New(Isolate* isolate, Zone* zone, HValue* context, 3565109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 35663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If left and right are constant values, try to return a constant value. 3567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 35713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (c_right->DoubleValue() != 0) { 35723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double double_res = c_left->DoubleValue() / c_right->DoubleValue(); 3573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsInt32Double(double_res)) { 3574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(double_res); 35753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return H_CONSTANT_DOUBLE(double_res); 3577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int sign = Double(c_left->DoubleValue()).Sign() * 3579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Double(c_right->DoubleValue()).Sign(); // Right could be -0. 3580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(sign * V8_INFINITY); 35813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3584109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HDiv(context, left, right); 35853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3587014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HBitwise::New(Isolate* isolate, Zone* zone, HValue* context, 3588109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch Token::Value op, HValue* left, HValue* right) { 3589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 35903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 35913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 35923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 35933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t result; 35943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_left = c_left->NumberValueAsInteger32(); 35953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t v_right = c_right->NumberValueAsInteger32(); 35963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 35973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_XOR: 35983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left ^ v_right; 35993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_AND: 36013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left & v_right; 36023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::BIT_OR: 36043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = v_left | v_right; 36053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 36063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 36073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch result = 0; // Please the compiler. 36083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 36093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(result); 36113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3613109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HBitwise(context, op, left, right); 36143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3616109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch#define DEFINE_NEW_H_BITWISE_INSTR(HInstr, result) \ 3617109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HInstruction* HInstr::New(Isolate* isolate, Zone* zone, HValue* context, \ 3618109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { \ 3619109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { \ 3620109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_left = HConstant::cast(left); \ 3621109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HConstant* c_right = HConstant::cast(right); \ 3622109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { \ 3623109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return H_CONSTANT_INT(result); \ 3624109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3625109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch } \ 3626109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HInstr(context, left, right); \ 3627014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 36283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36293ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HSar, 36303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() >> (c_right->NumberValueAsInteger32() & 0x1f)) 36313ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochDEFINE_NEW_H_BITWISE_INSTR(HShl, 36323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochc_left->NumberValueAsInteger32() << (c_right->NumberValueAsInteger32() & 0x1f)) 36333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef DEFINE_NEW_H_BITWISE_INSTR 36353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3636014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HShr::New(Isolate* isolate, Zone* zone, HValue* context, 3637109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch HValue* left, HValue* right) { 3638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) { 36393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_left = HConstant::cast(left); 36403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HConstant* c_right = HConstant::cast(right); 36413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((c_left->HasNumberValue() && c_right->HasNumberValue())) { 36423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t left_val = c_left->NumberValueAsInteger32(); 36433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int32_t right_val = c_right->NumberValueAsInteger32() & 0x1f; 36443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((right_val == 0) && (left_val < 0)) { 3645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_DOUBLE(static_cast<uint32_t>(left_val)); 36463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(static_cast<uint32_t>(left_val) >> right_val); 36483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3650109988c7ccb6f3fd1a58574fa3dfb88beaef6632Ben Murdoch return new (zone) HShr(context, left, right); 36513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3654014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochHInstruction* HSeqStringGetChar::New(Isolate* isolate, Zone* zone, 3655014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* context, String::Encoding encoding, 3656014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HValue* string, HValue* index) { 3657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_fold_constants && string->IsConstant() && index->IsConstant()) { 3658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_string = HConstant::cast(string); 3659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* c_index = HConstant::cast(index); 3660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c_string->HasStringValue() && c_index->HasInteger32Value()) { 3661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> s = c_string->StringValue(); 3662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t i = c_index->Integer32Value(); 3663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, i); 3664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(i, s->length()); 3665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return H_CONSTANT_INT(s->Get(i)); 3666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return new(zone) HSeqStringGetChar(encoding, string, index); 3669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef H_CONSTANT_INT 36733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#undef H_CONSTANT_DOUBLE 36743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3676958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& HBitwise::PrintDataTo(std::ostream& os) const { // NOLINT 3677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Token::Name(op_) << " "; 3678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HBitwiseBinaryOperation::PrintDataTo(os); 3679257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 3680257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3681257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::SimplifyConstantInputs() { 3683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert constant inputs to integers when all uses are truncating. 3684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This must happen before representation inference takes place. 3685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!CheckUsesForFlag(kTruncatingToInt32)) return; 36863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!OperandAt(i)->IsConstant()) return; 3688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HGraph* graph = block()->graph(); 3690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* operand = HConstant::cast(OperandAt(i)); 3692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operand->HasInteger32Value()) { 36933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch continue; 3694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasDoubleValue()) { 3695014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch HConstant* integer_input = HConstant::New( 3696014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch graph->isolate(), graph->zone(), graph->GetInvalidContext(), 3697014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DoubleToInt32(operand->DoubleValue())); 3698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch integer_input->InsertAfter(operand); 3699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, integer_input); 3700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->HasBooleanValue()) { 3701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, operand->BooleanValue() ? graph->GetConstant1() 3702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : graph->GetConstant0()); 3703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (operand->ImmortalImmovable()) { 3704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetOperandAt(i, graph->GetConstant0()); 37053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Overwrite observed input representations because they are likely Tagged. 3708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* use = it.value(); 3710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use->IsBinaryOperation()) { 3711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation::cast(use)->set_observed_input_representation( 3712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.index(), Representation::Smi()); 37133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 37143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 37173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HPhi::InferRepresentation(HInferRepresentationPhase* h_infer) { 3719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(CheckFlag(kFlexibleRepresentation)); 3720958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation new_rep = RepresentationFromUses(); 3721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "uses"); 3722958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier new_rep = RepresentationFromInputs(); 3723958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier UpdateRepresentation(new_rep, h_infer, "inputs"); 3724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_rep = RepresentationFromUseRequirements(); 3725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UpdateRepresentation(new_rep, h_infer, "use requirements"); 3726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 37273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HPhi::RepresentationFromInputs() { 3730958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Representation r = representation(); 3731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < OperandCount(); ++i) { 3732958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Ignore conservative Tagged assumption of parameters if we have 3733958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // reason to believe that it's too conservative. 3734014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (has_type_feedback_from_uses() && OperandAt(i)->IsParameter()) { 3735014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch continue; 3736014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3737958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r = r.generalize(OperandAt(i)->KnownOptimalRepresentation()); 3739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return r; 3741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Returns a representation if all uses agree on the same representation. 3745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Integer32 is also returned when some uses are Smi but others are Integer32. 3746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochRepresentation HValue::RepresentationFromUseRequirements() { 3747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = Representation::None(); 3748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ignore the use requirement from never run code 3750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (it.value()->block()->IsUnreachable()) continue; 3751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsNone()) { 3756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = use_rep; 3757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (use_rep.IsNone() || rep.Equals(use_rep)) continue; 3760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.generalize(use_rep).IsInteger32()) { 3761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch rep = Representation::Integer32(); 3762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch continue; 3763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Representation::None(); 3765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return rep; 3767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool HValue::HasNonSmiUse() { 3771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HUseIterator it(uses()); !it.Done(); it.Advance()) { 3772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We check for observed_input_representation elsewhere. 3773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation use_rep = 3774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.value()->RequiredInputRepresentation(it.index()); 3775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!use_rep.IsNone() && 3776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsSmi() && 3777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !use_rep.IsTagged()) { 3778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return true; 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return false; 37823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 37833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 37843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// Node-specific verification code is only included in debug mode. 3786b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 3787b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 37881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HPhi::Verify() { 3789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(OperandCount() == block()->predecessors()->length()); 3790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < OperandCount(); ++i) { 3791b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HValue* value = OperandAt(i); 3792b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* defining_block = value->block(); 3793b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HBasicBlock* predecessor_block = block()->predecessors()->at(i); 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(defining_block == predecessor_block || 3795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch defining_block->Dominates(predecessor_block)); 3796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3797b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3798b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 38001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid HSimulate::Verify() { 3801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasAstId() || next()->IsEnterInlined()); 3803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckHeapObject::Verify() { 3807b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HCheckValue::Verify() { 3813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HInstruction::Verify(); 3814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(HasNoUses()); 3815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 3818b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForFixedArrayHeader(int offset) { 3821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset < FixedArray::kHeaderSize); 3823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == FixedArray::kLengthOffset) return ForFixedArrayLength(); 3824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3825b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForMapAndOffset(Handle<Map> map, int offset, 3829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool existing_inobject_property = true; 3839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!map.is_null()) { 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch existing_inobject_property = (offset < 3841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch map->instance_size() - map->unused_property_fields() * kPointerSize); 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, representation, Handle<String>::null(), 3844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, existing_inobject_property); 3845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForAllocationSiteOffset(int offset) { 3849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (offset) { 3850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kTransitionInfoOffset: 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kNestedSiteOffset: 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureDataOffset: 3855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kPretenureCreateCountOffset: 3857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Smi()); 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kDependentCodeOffset: 3859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case AllocationSite::kWeakNextOffset: 3861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, Representation::Tagged()); 3862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch default: 3863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 3864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset); 3866b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3867b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForContextSlot(int index) { 3870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index >= 0); 3871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = Context::kHeaderSize + index * kPointerSize; 3873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(offset, Context::SlotOffset(index) + kHeapObjectTag); 3874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset, Representation::Tagged()); 3875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3878958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily BernierHObjectAccess HObjectAccess::ForScriptContext(int index) { 3879958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(index >= 0); 3880958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Portion portion = kInobject; 3881958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int offset = ScriptContextTable::GetContextOffset(index); 3882958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier return HObjectAccess(portion, offset, Representation::Tagged()); 3883958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier} 3884958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3885958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForJSArrayOffset(int offset) { 3887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Portion portion = kInobject; 3889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (offset == JSObject::kElementsOffset) { 3891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kElementsPointer; 3892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSArray::kLengthOffset) { 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kArrayLengths; 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (offset == JSObject::kMapOffset) { 3895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch portion = kMaps; 3896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(portion, offset); 3898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForBackingStoreOffset(int offset, 3902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation) { 3903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(offset >= 0); 3904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, 3905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String>::null(), false, false); 3906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHObjectAccess HObjectAccess::ForField(Handle<Map> map, int index, 3910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation, 3911014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Name> name) { 3912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index < 0) { 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Negative property indices are in-object properties, indexed 3914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // from the end of the fixed part of the object. 3915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + map->instance_size(); 3916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kInobject, offset, representation, name, false, true); 3917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Non-negative property indices are in the properties array. 3919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = (index * kPointerSize) + FixedArray::kHeaderSize; 3920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return HObjectAccess(kBackingStore, offset, representation, name, 3921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false, false); 3922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid HObjectAccess::SetGVNFlags(HValue *instr, PropertyAccessType access_type) { 3927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // set the appropriate GVN flags for a given load or store instruction 3928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // track dominating allocations in order to eliminate write barriers 3930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kNewSpacePromotion); 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kTrackSideEffectDominators); 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // try to GVN loads, but don't hoist above map changes 3934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetFlag(HValue::kUseGVN); 3935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 3936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (portion()) { 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kArrayLengths: 3940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kArrayLengths); 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kArrayLengths); 3944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kStringLengths: 3947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kStringLengths); 3949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kStringLengths); 3951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kInobject: 3954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kInobjectFields); 3956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kInobjectFields); 3958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kDouble: 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kDoubleFields); 3963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kDoubleFields); 3965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kBackingStore: 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kBackingStoreFields); 3970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kBackingStoreFields); 3972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kElementsPointer: 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kElementsPointer); 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kElementsPointer); 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kMaps: 3982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kMaps); 3984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kMaps); 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kExternalMemory: 3989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access_type == STORE) { 3990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetChangesFlag(::v8::internal::kExternalMemory); 3991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->SetDependsOnFlag(::v8::internal::kExternalMemory); 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 3995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3999958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernierstd::ostream& operator<<(std::ostream& os, const HObjectAccess& access) { 4000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "."; 4001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (access.portion()) { 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kArrayLengths: 4004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kStringLengths: 4005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%length"; 4006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kElementsPointer: 4008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%elements"; 4009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kMaps: 4011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "%map"; 4012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kDouble: // fall through 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kInobject: 4015014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[in-object]"; 4019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kBackingStore: 4021014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (!access.name().is_null() && access.name()->IsString()) { 4022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << Handle<String>::cast(access.name())->ToCString().get(); 4023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[backing-store]"; 4025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case HObjectAccess::kExternalMemory: 4027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch os << "[external-memory]"; 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return os << "@" << access.offset(); 4032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4033b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4034014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace internal 4035014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace v8 4036