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/arm/lithium-codegen-arm.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/base/bits.h" 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/code-factory.h" 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/code-stubs.h" 10014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/arm/lithium-gap-resolver-arm.h" 11014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/crankshaft/hydrogen-osr.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/ic.h" 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/stub-cache.h" 14014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#include "src/profiler/cpu-profiler.h" 15b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 17b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 18b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 19b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 20014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochclass SafepointGenerator final : public CallWrapper { 21b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch public: 22b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SafepointGenerator(LCodeGen* codegen, 23b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LPointerMap* pointers, 242b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode mode) 25b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch : codegen_(codegen), 26b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch pointers_(pointers), 272b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch deopt_mode_(mode) { } 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual ~SafepointGenerator() {} 29b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 30014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void BeforeCall(int call_size) const override {} 3144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 32014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void AfterCall() const override { 332b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch codegen_->RecordSafepoint(pointers_, deopt_mode_); 34b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 35b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 36b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch private: 37b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LCodeGen* codegen_; 38b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LPointerMap* pointers_; 392b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode_; 40b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch}; 41b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 42b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 43b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#define __ masm()-> 44b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 45b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GenerateCode() { 46b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LPhase phase("Z_Code generation", chunk()); 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_unused()); 48b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch status_ = GENERATING; 493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Open a frame scope to indicate that there is a frame on the stack. The 513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // NONE indicates that the scope shouldn't actually generate code to set up 523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the frame (that is done in GeneratePrologue). 533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FrameScope frame_scope(masm_, StackFrame::NONE); 543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GeneratePrologue() && GenerateBody() && GenerateDeferredCode() && 56b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateJumpTable() && GenerateSafepointTable(); 57b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 58b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 59b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 60b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::FinishCode(Handle<Code> code) { 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_done()); 62257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch code->set_stack_slots(GetStackSlotCount()); 631e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block code->set_safepoint_table_offset(safepoints_.GetCodeOffset()); 64b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch PopulateDeoptimizationData(code); 65b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 66b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 67b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::SaveCallerDoubles() { 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->saves_caller_doubles()); 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(NeedsEagerFrame()); 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Save clobbered callee double registers"); 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int count = 0; 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector* doubles = chunk()->allocated_double_registers(); 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector::Iterator save_iterator(doubles); 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!save_iterator.Done()) { 76014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ vstr(DoubleRegister::from_code(save_iterator.Current()), 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(sp, count * kDoubleSize)); 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch save_iterator.Advance(); 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch count++; 80b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 81b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 82b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 83b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 84b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::RestoreCallerDoubles() { 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->saves_caller_doubles()); 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(NeedsEagerFrame()); 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Restore clobbered callee double registers"); 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector* doubles = chunk()->allocated_double_registers(); 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector::Iterator save_iterator(doubles); 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int count = 0; 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!save_iterator.Done()) { 92014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ vldr(DoubleRegister::from_code(save_iterator.Current()), 93014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MemOperand(sp, count * kDoubleSize)); 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch save_iterator.Advance(); 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch count++; 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 97b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 98b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 99b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GeneratePrologue() { 101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_generating()); 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsOptimizing()) { 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ProfileEntryHookStub::MaybeCallEntryHook(masm_); 105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (strlen(FLAG_stop_at) > 0 && 108014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch info_->literal()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("stop_at"); 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 111b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 112b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r1: Callee's JS function. 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // cp: Callee's context. 115014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // pp: Callee's constant pool pointer (if enabled) 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // fp: Caller's frame pointer. 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // lr: Caller's pc. 118257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 119257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info()->set_prologue_offset(masm_->pc_offset()); 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsStub()) { 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StubPrologue(); 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 125014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Prologue(info()->GeneratePreagedPrologue()); 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = true; 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 129b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Reserve space for the stack slots needed by the code. 131257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int slots = GetStackSlotCount(); 132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (slots > 0) { 133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_debug_code) { 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r0); 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(r0, sp, Operand(slots * kPointerSize)); 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r1, Operand(kSlotsZapValue)); 139b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label loop; 140b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&loop); 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kPointerSize)); 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r1, MemOperand(r0, 2 * kPointerSize)); 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, sp); 144b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(ne, &loop); 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r1); 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r0); 147b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 148b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 149b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 150b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->saves_caller_doubles()) { 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SaveCallerDoubles(); 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 155014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return !is_aborted(); 156014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 157014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 158014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 159014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::DoPrologue(LPrologue* instr) { 160014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Comment(";;; Prologue begin"); 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 162e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Possibly allocate a local context. 163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (info()->scope()->num_heap_slots() > 0) { 164e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Comment(";;; Allocate local context"); 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool need_write_barrier = true; 166e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Argument to NewContext is the function, which is in r1. 167014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int slots = info()->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 168014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Safepoint::DeoptMode deopt_mode = Safepoint::kNoLazyDeopt; 169014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (info()->scope()->is_script_scope()) { 170014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ push(r1); 171014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Push(info()->scope()->GetScopeInfo(info()->isolate())); 172014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CallRuntime(Runtime::kNewScriptContext); 173014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch deopt_mode = Safepoint::kLazyDeopt; 174014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (slots <= FastNewContextStub::kMaximumSlots) { 175014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FastNewContextStub stub(isolate(), slots); 176e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CallStub(&stub); 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Result of FastNewContextStub is always in new space. 178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch need_write_barrier = false; 179e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 181014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CallRuntime(Runtime::kNewFunctionContext); 182e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 183014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch RecordSafepoint(deopt_mode); 184014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 185e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Context is returned in both r0 and cp. It replaces the context 186e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // passed to us. It's saved in the stack and kept live in cp. 187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, r0); 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset)); 189e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Copy any necessary parameters into the context. 190e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int num_parameters = scope()->num_parameters(); 191014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int first_parameter = scope()->has_this_declaration() ? -1 : 0; 192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch for (int i = first_parameter; i < num_parameters; i++) { 193014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Variable* var = (i == -1) ? scope()->receiver() : scope()->parameter(i); 194589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (var->IsContextSlot()) { 195e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int parameter_offset = StandardFrameConstants::kCallerSPOffset + 196e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch (num_parameters - 1 - i) * kPointerSize; 197e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Load parameter from stack. 198e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(r0, MemOperand(fp, parameter_offset)); 199e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Store it in the context. 200014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MemOperand target = ContextMemOperand(cp, var->index()); 2013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(r0, target); 2023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Update the write barrier. This clobbers r3 and r0. 203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (need_write_barrier) { 204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteContextSlot( 205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cp, 206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target.offset(), 207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r0, 208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r3, 209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs); 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (FLAG_debug_code) { 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfInNewSpace(cp, r0, &done); 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Abort(kExpectedNewSpaceObject); 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 217e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 218e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 219e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Comment(";;; End allocate local context"); 220e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 221e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 222014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Comment(";;; Prologue end"); 223b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 224b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 225b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::GenerateOsrPrologue() { 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Generate the OSR entry prologue at the first unknown OSR value, or if there 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // are none, at the OSR entrypoint instruction. 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (osr_pc_offset_ >= 0) return; 230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch osr_pc_offset_ = masm()->pc_offset(); 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adjust the frame size, subsuming the unoptimized frame into the 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // optimized frame. 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(slots >= 0); 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) { 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->IsCall()) { 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsLazyBailout() && !instr->IsGap()) { 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoints_.BumpLastLazySafepointIndex(); 247b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 248b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 249b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 250b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 251b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GenerateDeferredCode() { 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_generating()); 2533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (deferred_.length() > 0) { 2543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { 2553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LDeferredCode* code = deferred_[i]; 256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = 258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instructions_->at(code->instruction_index())->hydrogen_value(); 259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordAndWritePosition( 260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch chunk()->graph()->SourcePositionToScriptPosition(value->position())); 261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; <@%d,#%d> " 263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "-------------------- Deferred %s --------------------", 2643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->instruction_index(), 265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code->instr()->hydrogen_value()->id(), 2663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->instr()->Mnemonic()); 267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(code->entry()); 268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsDeferredFrame()) { 269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Build frame"); 270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!frame_is_built_); 271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub()); 272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = true; 273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PushFixedFrame(); 274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch0(), Operand(Smi::FromInt(StackFrame::STUB))); 275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(scratch0()); 276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Deferred code"); 278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch code->Generate(); 280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsDeferredFrame()) { 281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Destroy frame"); 282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(frame_is_built_); 283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(ip); 284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PopFixedFrame(); 285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = false; 286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ jmp(code->exit()); 2883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 290b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 291257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Force constant pool emission at the end of the deferred code to make 292257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // sure that no constant pools are emitted after. 293b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch masm()->CheckConstPool(true, false); 294b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 295257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return !is_aborted(); 296257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 297257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 298257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool LCodeGen::GenerateJumpTable() { 300257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check that the jump table is accessible from everywhere in the function 3013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // code, i.e. that offsets to the table can be encoded in the 24bit signed 302257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // immediate of a branch instruction. 303257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // To simplify we consider the code size from the first instruction to the 304257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // end of the jump table. We also don't consider the pc load delta. 305257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Each entry in the jump table generates one instruction and inlines one 306257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // 32bit data after it. 307257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!is_int24((masm()->pc_offset() / Assembler::kInstrSize) + 308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch jump_table_.length() * 7)) { 309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kGeneratedCodeIsTooLarge); 310257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 311257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (jump_table_.length() > 0) { 313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label needs_frame, call_deopt_entry; 314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; -------------------- Jump table --------------------"); 316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address base = jump_table_[0].address; 317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register entry_offset = scratch0(); 319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int length = jump_table_.length(); 321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < length; i++) { 322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; 323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&table_entry->label); 324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(jump_table_[0].bailout_type, table_entry->bailout_type); 326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address entry = table_entry->address; 327014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptComment(table_entry->deopt_info); 328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Second-level deopt table entries are contiguous and small, so instead 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // of loading the full, absolute address of each one, load an immediate 331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // offset which will be added to the base address later. 332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(entry_offset, Operand(entry - base)); 333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (table_entry->needs_frame) { 335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->saves_caller_doubles()); 336014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Comment(";;; call deopt with frame"); 337014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ PushFixedFrame(); 338014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bl(&needs_frame); 339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 340014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bl(&call_deopt_entry); 341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 342014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch info()->LogDeoptCallPosition(masm()->pc_offset(), 343014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch table_entry->deopt_info.inlining_id); 344014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch masm()->CheckConstPool(false, false); 345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 347014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (needs_frame.is_linked()) { 348014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&needs_frame); 349014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // This variant of deopt can only be used with stubs. Since we don't 350014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // have a function pointer to install in the stack frame that we're 351014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // building, install a special marker there instead. 352014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(info()->IsStub()); 353014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(ip, Operand(Smi::FromInt(StackFrame::STUB))); 354014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ push(ip); 355014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 356014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 358014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Comment(";;; call deopt"); 359014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&call_deopt_entry); 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 361014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (info()->saves_caller_doubles()) { 362014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(info()->IsStub()); 363014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch RestoreCallerDoubles(); 364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 365014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 366014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Add the base address to the offset previously loaded in entry_offset. 367014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ add(entry_offset, entry_offset, 368014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Operand(ExternalReference::ForDeoptEntry(base))); 369014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bx(entry_offset); 370257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Force constant pool emission at the end of the deopt jump table to make 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // sure that no constant pools are emitted after. 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->CheckConstPool(true, false); 375257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 376257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The deoptimization jump table is the last part of the instruction 377257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // sequence. Mark the generated code as done unless we bailed out. 378b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!is_aborted()) status_ = DONE; 379b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return !is_aborted(); 380b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 381b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 382b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GenerateSafepointTable() { 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_done()); 385257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch safepoints_.Emit(masm(), GetStackSlotCount()); 386b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return !is_aborted(); 387b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 388b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 390014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochRegister LCodeGen::ToRegister(int code) const { 391014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return Register::from_code(code); 392b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 393b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 394b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 395014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben MurdochDwVfpRegister LCodeGen::ToDoubleRegister(int code) const { 396014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return DwVfpRegister::from_code(code); 397b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 398b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 399b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 400b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochRegister LCodeGen::ToRegister(LOperand* op) const { 401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsRegister()); 402b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToRegister(op->index()); 403b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 404b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 405b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 406b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochRegister LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) { 407b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsRegister()) { 408b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToRegister(op->index()); 409b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 4103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(const_op); 412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> literal = constant->handle(isolate()); 4133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 4143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (r.IsInteger32()) { 415014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch AllowDeferredHandleDereference get_number; 416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(literal->IsNumber()); 4173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(scratch, Operand(static_cast<int32_t>(literal->Number()))); 4183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (r.IsDouble()) { 419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kEmitLoadRegisterUnsupportedDoubleImmediate); 4203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsSmiOrTagged()); 422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(scratch, literal); 4233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 424b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (op->IsStackSlot()) { 426b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ ldr(scratch, ToMemOperand(op)); 427b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 428b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 429b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 430b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 431b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 433b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDwVfpRegister LCodeGen::ToDoubleRegister(LOperand* op) const { 435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsDoubleRegister()); 436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToDoubleRegister(op->index()); 437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 438b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 439b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDwVfpRegister LCodeGen::EmitLoadDoubleRegister(LOperand* op, 441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SwVfpRegister flt_scratch, 442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch) { 443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsDoubleRegister()) { 444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToDoubleRegister(op->index()); 445b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(const_op); 448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> literal = constant->handle(isolate()); 449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (r.IsInteger32()) { 451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(literal->IsNumber()); 452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ mov(ip, Operand(static_cast<int32_t>(literal->Number()))); 453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vmov(flt_scratch, ip); 454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vcvt_f64_s32(dbl_scratch, flt_scratch); 455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kUnsupportedDoubleImmediate); 458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsTagged()) { 459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kUnsupportedTaggedImmediate); 460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (op->IsStackSlot()) { 462b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // TODO(regis): Why is vldr not taking a MemOperand? 463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // __ vldr(dbl_scratch, ToMemOperand(op)); 464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch MemOperand mem_op = ToMemOperand(op); 465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vldr(dbl_scratch, mem_op.rn(), mem_op.offset()); 466b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 467b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 468b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 469b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 470b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 471b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 472b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4733ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHandle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { 474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(chunk_->LookupLiteralRepresentation(op).IsSmiOrTagged()); 476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return constant->handle(isolate()); 4773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 4783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochbool LCodeGen::IsInteger32(LConstantOperand* op) const { 481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32(); 482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool LCodeGen::IsSmi(LConstantOperand* op) const { 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return chunk_->LookupLiteralRepresentation(op).IsSmi(); 487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t LCodeGen::ToInteger32(LConstantOperand* op) const { 491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ToRepresentation(op, Representation::Integer32()); 492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t LCodeGen::ToRepresentation(LConstantOperand* op, 496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const Representation& r) const { 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = constant->Integer32Value(); 499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsInteger32()) return value; 500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsSmiOrTagged()); 501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return reinterpret_cast<int32_t>(Smi::FromInt(value)); 5023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochSmi* LCodeGen::ToSmi(LConstantOperand* op) const { 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::FromInt(constant->Integer32Value()); 508b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochdouble LCodeGen::ToDouble(LConstantOperand* op) const { 512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasDoubleValue()); 514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return constant->DoubleValue(); 5153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 518b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochOperand LCodeGen::ToOperand(LOperand* op) { 519b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsConstantOperand()) { 520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk()->LookupConstant(const_op); 522b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasSmiValue()); 525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(Smi::FromInt(constant->Integer32Value())); 526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (r.IsInteger32()) { 527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasInteger32Value()); 528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(constant->Integer32Value()); 529b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kToOperandUnsupportedDoubleImmediate); 531b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsTagged()); 533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(constant->handle(isolate())); 534b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsRegister()) { 535b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return Operand(ToRegister(op)); 536b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleRegister()) { 537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kToOperandIsDoubleRegisterUnimplemented); 538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand::Zero(); 539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 540b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Stack slots not implemented, use ToMemOperand instead. 541b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand::Zero(); 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int ArgumentsOffsetWithoutFrame(int index) { 547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index < 0); 548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return -(index + 1) * kPointerSize; 549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 550b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 551b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 552b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochMemOperand LCodeGen::ToMemOperand(LOperand* op) const { 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!op->IsRegister()); 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!op->IsDoubleRegister()); 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot()); 556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(fp, StackSlotOffset(op->index())); 558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Retrieve parameter without eager stack-frame relative to the 560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // stack-pointer. 561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(sp, ArgumentsOffsetWithoutFrame(op->index())); 562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 566e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochMemOperand LCodeGen::ToHighMemOperand(LOperand* op) const { 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsDoubleStackSlot()); 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(fp, StackSlotOffset(op->index()) + kPointerSize); 570e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Retrieve parameter without eager stack-frame relative to the 572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // stack-pointer. 573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand( 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sp, ArgumentsOffsetWithoutFrame(op->index()) + kPointerSize); 575e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 576e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 577e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 578e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 579b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdochvoid LCodeGen::WriteTranslation(LEnvironment* environment, 580b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Translation* translation) { 581b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch if (environment == NULL) return; 582b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 583b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // The translation includes one command per value in the environment. 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int translation_size = environment->translation_size(); 585b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 586b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch WriteTranslation(environment->outer(), translation); 587014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch WriteTranslationFrame(environment, translation); 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_index = 0; 590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dematerialized_index = 0; 591b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch for (int i = 0; i < translation_size; ++i) { 592b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch LOperand* value = environment->values()->at(i); 593014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch AddToTranslation( 594014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch environment, translation, value, environment->HasTaggedValueAt(i), 595014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch environment->HasUint32ValueAt(i), &object_index, &dematerialized_index); 596b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 597b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 598b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 599b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::AddToTranslation(LEnvironment* environment, 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Translation* translation, 602b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* op, 603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_tagged, 604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_uint32, 605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int* object_index_pointer, 606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int* dematerialized_index_pointer) { 607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == LEnvironment::materialization_marker()) { 608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_index = (*object_index_pointer)++; 609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment->ObjectIsDuplicateAt(object_index)) { 610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dupe_of = environment->ObjectDuplicateOfAt(object_index); 611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->DuplicateObject(dupe_of); 612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_length = environment->ObjectLengthAt(object_index); 615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment->ObjectIsArgumentsAt(object_index)) { 616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginArgumentsObject(object_length); 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginCapturedObject(object_length); 619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dematerialized_index = *dematerialized_index_pointer; 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int env_offset = environment->translation_size() + dematerialized_index; 622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *dematerialized_index_pointer += object_length; 623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < object_length; ++i) { 624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* value = environment->values()->at(env_offset + i); 625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddToTranslation(environment, 626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation, 627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value, 628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasTaggedValueAt(env_offset + i), 629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasUint32ValueAt(env_offset + i), 630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_index_pointer, 631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dematerialized_index_pointer); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op->IsStackSlot()) { 637014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int index = op->index(); 638014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (index >= 0) { 639014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch index += StandardFrameConstants::kFixedFrameSize / kPointerSize; 640014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (is_tagged) { 642014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch translation->StoreStackSlot(index); 643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (is_uint32) { 644014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch translation->StoreUint32StackSlot(index); 645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 646014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch translation->StoreInt32StackSlot(index); 647b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 648b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleStackSlot()) { 649014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int index = op->index(); 650014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (index >= 0) { 651014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch index += StandardFrameConstants::kFixedFrameSize / kPointerSize; 652014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 653014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch translation->StoreDoubleStackSlot(index); 654b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsRegister()) { 655b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(op); 656b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (is_tagged) { 657b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreRegister(reg); 658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (is_uint32) { 659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->StoreUint32Register(reg); 660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 661b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreInt32Register(reg); 662b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleRegister()) { 664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DoubleRegister reg = ToDoubleRegister(op); 665b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreDoubleRegister(reg); 666b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk()->LookupConstant(LConstantOperand::cast(op)); 668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int src_index = DefineDeoptimizationLiteral(constant->handle(isolate())); 669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreLiteral(src_index); 670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint LCodeGen::CallCodeSize(Handle<Code> code, RelocInfo::Mode mode) { 677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int size = masm()->CallSize(code, mode); 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code->kind() == Code::BINARY_OP_IC || 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code->kind() == Code::COMPARE_IC) { 680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch size += Assembler::kInstrSize; // extra nop() added in CallCodeGeneric. 681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return size; 683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 686b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::CallCode(Handle<Code> code, 687b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RelocInfo::Mode mode, 688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TargetAddressStorageMode storage_mode) { 690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT, storage_mode); 6918b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 6928b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 6938b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 6948b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::CallCodeGeneric(Handle<Code> code, 6958b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RelocInfo::Mode mode, 6968b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch LInstruction* instr, 697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SafepointMode safepoint_mode, 698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TargetAddressStorageMode storage_mode) { 699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr != NULL); 700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission to ensure nop indicating no inlined smi code 701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is in the correct position. 702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(code, mode, TypeFeedbackId::None(), al, storage_mode); 7042b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt(instr, safepoint_mode); 70518a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch 70618a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch // Signal that we don't inline smi code before these stubs in the 70718a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch // optimizing code generator. 708257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (code->kind() == Code::BINARY_OP_IC || 70918a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch code->kind() == Code::COMPARE_IC) { 71018a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch __ nop(); 71118a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch } 712b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 713b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 714b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 71544f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::CallRuntime(const Runtime::Function* function, 716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int num_arguments, 717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SaveFPRegsMode save_doubles) { 719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr != NULL); 720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntime(function, num_arguments, save_doubles); 722b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 7232b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 7248b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 7258b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 7268b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::LoadContextFromDeferred(LOperand* context) { 728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (context->IsRegister()) { 729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(cp, ToRegister(context)); 730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (context->IsStackSlot()) { 731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, ToMemOperand(context)); 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (context->IsConstantOperand()) { 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch chunk_->LookupConstant(LConstantOperand::cast(context)); 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(cp, Handle<Object>::cast(constant->handle(isolate()))); 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7428b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, 7438b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch int argc, 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* context) { 746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadContextFromDeferred(context); 7478b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ CallRuntimeSaveDoubles(id); 7488b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RecordSafepointWithRegisters( 7492b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); 750b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 751b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 7532b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RegisterEnvironmentForDeoptimization(LEnvironment* environment, 7542b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode mode) { 755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->set_has_been_used(); 756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!environment->HasBeenRegistered()) { 757b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Physical stack frame layout: 758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // -x ............. -4 0 ..................................... y 759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [incoming arguments] [spill slots] [pushed outgoing arguments] 760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Layout of the environment: 762b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // 0 ..................................................... size-1 763b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [parameters] [locals] [expression stack including arguments] 764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Layout of the translation: 766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // 0 ........................................................ size - 1 + 4 767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [expression stack including arguments] [locals] [4 words] [parameters] 768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // |>------------ translation_size ------------<| 769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int frame_count = 0; 7713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int jsframe_count = 0; 772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (LEnvironment* e = environment; e != NULL; e = e->outer()) { 773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ++frame_count; 7743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (e->frame_type() == JS_FUNCTION) { 7753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ++jsframe_count; 7763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 777b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Translation translation(&translations_, frame_count, jsframe_count, zone()); 779b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch WriteTranslation(environment, &translation); 780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int deoptimization_index = deoptimizations_.length(); 7812b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch int pc_offset = masm()->pc_offset(); 7822b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch environment->Register(deoptimization_index, 7832b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch translation.index(), 7842b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deoptimizations_.Add(environment, zone()); 786b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 787b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 788b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DeoptimizeIf(Condition condition, LInstruction* instr, 791014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Deoptimizer::DeoptReason deopt_reason, 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType bailout_type) { 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LEnvironment* environment = instr->environment(); 7942b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(environment->HasBeenRegistered()); 796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int id = environment->deoptimization_index(); 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address entry = 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type); 799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (entry == NULL) { 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kBailoutWasNotPrepared); 801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 802b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_deopt_every_n_times != 0 && !info()->IsStub()) { 805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalReference count = ExternalReference::stress_deopt_count(isolate()); 807b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Store the condition on the stack if necessary 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand::Zero(), LeaveCC, NegateCondition(condition)); 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(1), LeaveCC, condition); 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(scratch); 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(count)); 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r1, MemOperand(scratch)); 818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r1, r1, Operand(1), SetCC); 819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r1, Operand(FLAG_deopt_every_n_times), LeaveCC, eq); 820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r1, MemOperand(scratch)); 821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r1); 822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Clean up the stack before the deoptimizer call 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(scratch); 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(entry, RelocInfo::RUNTIME_ENTRY, eq); 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // 'Restore' the condition in a slightly hacky way. (It would be better 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to use 'msr' and 'mrs' instructions here, but they are not supported by 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // our ARM simulator). 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch condition = ne; 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand::Zero()); 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 837b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 838b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->ShouldTrapOnDeopt()) { 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("trap_on_deopt", condition); 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 842257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 843014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Deoptimizer::DeoptInfo deopt_info = MakeDeoptInfo(instr, deopt_reason); 844014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub() || frame_is_built_); 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Go through jump table if we need to handle condition, build frame, or 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // restore caller doubles. 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition == al && frame_is_built_ && 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !info()->saves_caller_doubles()) { 850014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptComment(deopt_info); 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(entry, RelocInfo::RUNTIME_ENTRY); 852014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch info()->LogDeoptCallPosition(masm()->pc_offset(), deopt_info.inlining_id); 853b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 854014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Deoptimizer::JumpTableEntry table_entry(entry, deopt_info, bailout_type, 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !frame_is_built_); 856257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We often have several deopts to the same entry, reuse the last 857257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // jump entry if this is the case. 858014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (FLAG_trace_deopt || isolate()->cpu_profiler()->is_profiling() || 859014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch jump_table_.is_empty() || 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !table_entry.IsEquivalentTo(jump_table_.last())) { 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch jump_table_.Add(table_entry, zone()); 862b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, &jump_table_.last().label); 864b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 865b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 866b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 867b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DeoptimizeIf(Condition condition, LInstruction* instr, 869014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Deoptimizer::DeoptReason deopt_reason) { 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType bailout_type = info()->IsStub() 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? Deoptimizer::LAZY 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Deoptimizer::EAGER; 873014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(condition, instr, deopt_reason, bailout_type); 874b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 875b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 876b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 8772b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RecordSafepointWithLazyDeopt( 8782b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LInstruction* instr, SafepointMode safepoint_mode) { 8792b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { 8802b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); 8812b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } else { 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 8832b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithRegisters( 8842b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr->pointer_map(), 0, Safepoint::kLazyDeopt); 8852b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 8862b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch} 8872b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 8882b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 8891e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::RecordSafepoint( 8901e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LPointerMap* pointers, 8911e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Safepoint::Kind kind, 8921e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block int arguments, 8932b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(expected_safepoint_kind_ == kind); 8958b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 8963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); 897b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Safepoint safepoint = safepoints_.DefineSafepoint(masm(), 8982b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch kind, arguments, deopt_mode); 899b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < operands->length(); i++) { 900b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* pointer = operands->at(i); 901b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (pointer->IsStackSlot()) { 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoint.DefinePointerSlot(pointer->index(), zone()); 9031e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoint.DefinePointerRegister(ToRegister(pointer), zone()); 905b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 906b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 9071e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 9081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 9091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 9101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::RecordSafepoint(LPointerMap* pointers, 9112b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 9122b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(pointers, Safepoint::kSimple, 0, deopt_mode); 913b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 914b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 915b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 9162b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RecordSafepoint(Safepoint::DeoptMode deopt_mode) { 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LPointerMap empty_pointers(zone()); 9182b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(&empty_pointers, deopt_mode); 919e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 920e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 921e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 922b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, 923b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int arguments, 9242b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 9252b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint( 9262b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch pointers, Safepoint::kWithRegisters, arguments, deopt_mode); 927b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 928b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 929b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::RecordAndWritePosition(int position) { 931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (position == RelocInfo::kNoPosition) return; 932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->positions_recorder()->RecordPosition(position); 933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->positions_recorder()->WriteRecordedPositions(); 934b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 935b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 936b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic const char* LabelType(LLabel* label) { 938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (label->is_loop_header()) return " (loop header)"; 939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (label->is_osr_entry()) return " (OSR entry)"; 940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ""; 941b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 942b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 943b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLabel(LLabel* label) { 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_instruction_, 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch label->hydrogen_value()->id(), 948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch label->block_id(), 949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LabelType(label)); 950b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(label->label()); 951b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch current_block_ = label->block_id(); 952257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DoGap(label); 953b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 954b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 955b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 956b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoParallelMove(LParallelMove* move) { 957e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch resolver_.Resolve(move); 958b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 959b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 960b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoGap(LGap* gap) { 962b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = LGap::FIRST_INNER_POSITION; 963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i <= LGap::LAST_INNER_POSITION; 964b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i++) { 965b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); 966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LParallelMove* move = gap->GetParallelMove(inner_pos); 967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (move != NULL) DoParallelMove(move); 968b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 969b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 970b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 972257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoInstructionGap(LInstructionGap* instr) { 973257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DoGap(instr); 974257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 975257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 976257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 977b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoParameter(LParameter* instr) { 978b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Nothing to do. 979b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 980b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 981b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 982b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallStub(LCallStub* instr) { 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 9859fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block switch (instr->hydrogen()->major_key()) { 9869fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block case CodeStub::RegExpExec: { 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RegExpExecStub stub(isolate()); 9889fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 9899fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block break; 9909fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 9919fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block case CodeStub::SubString: { 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SubStringStub stub(isolate()); 9939fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 9949fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block break; 9959fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 9969fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block default: 9979fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block UNREACHABLE(); 9989fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 999b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1000b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1001b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1002b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { 1003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateOsrPrologue(); 1004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoModByPowerOf2I(LModByPowerOf2I* instr) { 1008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(dividend.is(ToRegister(instr->result()))); 1011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Theoretically, a variation of the branch-free code for integer division by 1013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // a power of 2 (calculating the remainder via an additional multiplication 1014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (which gets simplified to an 'and') and subtraction) should be faster, and 1015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this is exactly what GCC and clang emit. Nevertheless, benchmarks seem to 1016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // indicate that positive dividends are heavily favored, so the branching 1017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // version performs better. 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); 1020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label dividend_is_not_negative, done; 1021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kLeftCanBeNegative)) { 1022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, ÷nd_is_not_negative); 1024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Note that this is correct even for kMinInt operands. 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(dividend, dividend, Operand::Zero()); 1026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(dividend, dividend, Operand(mask)); 1027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(dividend, dividend, Operand::Zero(), SetCC); 1028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1029014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(÷nd_is_not_negative); 1035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(dividend, dividend, Operand(mask)); 1036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoModByConstI(LModByConstI* instr) { 1041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1047014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kDivisionByZero); 1048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(Abs(divisor))); 1053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, ip, result, ip); 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, dividend, result, SetCC); 1055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for negative zero. 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label remainder_not_zero; 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &remainder_not_zero); 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1062014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(lt, instr, Deoptimizer::kMinusZero); 1063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&remainder_not_zero); 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1065b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1066b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1067b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1068b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoModI(LModI* instr) { 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 107244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(instr->left()); 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = ToRegister(instr->right()); 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 107644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x % 0, sdiv might signal an exception. We have to deopt in this 1079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // case because we can't return a NaN. 1080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanBeDivByZero)) { 1081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand::Zero()); 1082014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kDivisionByZero); 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 108444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for kMinInt % -1, sdiv will return kMinInt, which is not what we 1086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // want. We have to deopt if we care about -0, because we can't return that. 1087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanOverflow)) { 1088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_overflow_possible; 1089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand(kMinInt)); 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_overflow_possible); 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand(-1)); 1092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1093014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_overflow_possible); 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, Operand::Zero()); 1097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 1098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_overflow_possible); 1100b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 110144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // For 'r3 = r1 % r2' we can have the following ARM code: 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // sdiv r3, r1, r2 1104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // mls r3, r3, r2, r1 110544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result_reg, left_reg, right_reg); 1107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(result_reg, result_reg, right_reg, left_reg); 1108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we care about -0, test if the dividend is <0 and the result is 0. 1110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 1112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 1113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand::Zero()); 1114014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(lt, instr, Deoptimizer::kMinusZero); 1115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 111744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // General case, without any SDIV support. 1120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(instr->left()); 1121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = ToRegister(instr->right()); 1122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 1123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(left_reg)); 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(right_reg)); 1126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(result_reg)); 1127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dividend = ToDoubleRegister(instr->temp()); 1128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister divisor = ToDoubleRegister(instr->temp2()); 1129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!divisor.is(dividend)); 1130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister quotient = double_scratch0(); 1131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!quotient.is(dividend)); 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!quotient.is(divisor)); 113344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x % 0, we have to deopt in this case because we can't return a 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NaN. 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanBeDivByZero)) { 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand::Zero()); 1139014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kDivisionByZero); 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1141b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg); 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load the arguments in VFP registers. The divisor value is preloaded 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // before. Be careful that 'right_reg' is only live on entry. 1145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(svenpanne) The last comments seems to be wrong nowadays. 1146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), left_reg); 1147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(dividend, double_scratch0().low()); 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), right_reg); 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(divisor, double_scratch0().low()); 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We do not care about the sign of the divisor. Note that we still handle 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the kMinInt % -1 case correctly, though. 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vabs(divisor, divisor); 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute the quotient and round it to a 32bit integer. 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(quotient, dividend, divisor); 1156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(quotient.low(), quotient); 1157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(quotient, quotient.low()); 1158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute the remainder in result. 1160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmul(double_scratch0(), divisor, quotient); 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), double_scratch0()); 1162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(scratch, double_scratch0().low()); 1163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result_reg, left_reg, scratch, SetCC); 1164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we care about -0, test if the dividend is <0 and the result is 0. 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand::Zero()); 1169014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(mi, instr, Deoptimizer::kMinusZero); 1170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1172b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1174b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 11753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDivByPowerOf2I(LDivByPowerOf2I* instr) { 1177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(divisor == kMinInt || base::bits::IsPowerOfTwo32(Abs(divisor))); 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result.is(dividend)); 118244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = instr->hydrogen(); 1185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1187014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && divisor == -1) { 1191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand(kMinInt)); 1192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kOverflow); 1193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if remainder will not be 0. 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32) && 1196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch divisor != 1 && divisor != -1) { 1197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); 1198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(dividend, Operand(mask)); 1199014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecision); 1200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 120144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == -1) { // Nice shortcut, not needed for correctness. 1203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, dividend, Operand(0)); 1204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2Abs(divisor); 1207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift == 0) { 1208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, dividend); 1209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (shift == 1) { 1210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, dividend, Operand(dividend, LSR, 31)); 121144f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(dividend, ASR, 31)); 1213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, dividend, Operand(result, LSR, 32 - shift)); 121444f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 1215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift > 0) __ mov(result, Operand(result, ASR, shift)); 1216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand(0)); 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1218b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDivByConstI(LDivByConstI* instr) { 1221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kDivisionByZero); 1228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = instr->hydrogen(); 1233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1235014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) { 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(divisor)); 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(scratch0(), ip, result, ip); 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch0(), scratch0(), dividend, SetCC); 1245014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecision); 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1247b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1248b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1249b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// TODO(svenpanne) Refactor this to avoid code duplication with DoFlooringDivI. 1251b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDivI(LDivI* instr) { 1252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation* hdiv = instr->hydrogen(); 1253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register divisor = ToRegister(instr->divisor()); 1255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1256b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1257b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check for x / 0. 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { 1259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand::Zero()); 1260014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kDivisionByZero); 1261b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1262b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1263b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check for (0 / -x) that will produce negative zero. 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { 1265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label positive; 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen_value()->CheckFlag(HValue::kCanBeDivByZero)) { 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the test only if it hadn't be done above. 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand::Zero()); 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &positive); 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1272014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&positive); 1274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && 1278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!CpuFeatures::IsSupported(SUDIV) || 1279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32))) { 1280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We don't need to check for overflow when truncating with sdiv 1281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // support because, on ARM, sdiv kMinInt, -1 -> kMinInt. 1282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand(kMinInt)); 1283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand(-1), eq); 1284014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kOverflow); 1285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 1289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result, dividend, divisor); 1290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vleft = ToDoubleRegister(instr->temp()); 1292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vright = double_scratch0(); 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), dividend); 1294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vleft, double_scratch0().low()); 1295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), divisor); 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vright, double_scratch0().low()); 1297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(vleft, vleft, vright); // vleft now contains the result. 1298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), vleft); 1299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(result, double_scratch0().low()); 1300b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1301b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32)) { 1303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute remainder and deopt if it's not zero. 1304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register remainder = scratch0(); 1305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(remainder, result, divisor, dividend); 1306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(remainder, Operand::Zero()); 1307014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecision); 1308b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1310b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1311b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMultiplyAddD(LMultiplyAddD* instr) { 1313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister addend = ToDoubleRegister(instr->addend()); 1314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); 1315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); 1316b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This is computed in-place. 1318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(addend.is(ToDoubleRegister(instr->result()))); 1319b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmla(addend, multiplier, multiplicand); 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1322b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1323b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMultiplySubD(LMultiplySubD* instr) { 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister minuend = ToDoubleRegister(instr->minuend()); 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); 1328b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This is computed in-place. 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(minuend.is(ToDoubleRegister(instr->result()))); 1331b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmls(minuend, multiplier, multiplicand); 1333b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 1334b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1335b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivByPowerOf2I(LFlooringDivByPowerOf2I* instr) { 1337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1340b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is 1, return the dividend. 1342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 1) { 1343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result, dividend); 1344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1345e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 1346b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is positive, things are easy: There can be no deopts and we 1348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // can simply do an arithmetic right shift. 1349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2Abs(divisor); 1350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor > 1) { 1351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(dividend, ASR, shift)); 1352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1354b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is negative, we have to negate and handle edge cases. 1356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, dividend, Operand::Zero(), SetCC); 1357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 1358014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1360b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Dividing by -1 is basically negation, unless we overflow. 1362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == -1) { 1363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { 1364014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the negation could not overflow, simply shifting is OK. 1370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { 1371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(result, ASR, shift)); 1372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 13743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(kMinInt / divisor), LeaveCC, vs); 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(result, ASR, shift), LeaveCC, vc); 1377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 13783fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivByConstI(LFlooringDivByConstI* instr) { 1381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1387014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kDivisionByZero); 1388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMathFloorOfDiv* hdiv = instr->hydrogen(); 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1395014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Easy case: We need no dynamic check for the dividend and the flooring 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // division is the same as the truncating division. 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((divisor > 0 && !hdiv->CheckFlag(HValue::kLeftCanBeNegative)) || 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (divisor < 0 && !hdiv->CheckFlag(HValue::kLeftCanBePositive))) { 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In the general case we may need to adjust before and after the truncating 1408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // division to get a flooring division. 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp.is(dividend) && !temp.is(result)); 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label needs_adjustment, done; 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(divisor > 0 ? lt : gt, &needs_adjustment); 1414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 1417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&needs_adjustment); 1418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(temp, dividend, Operand(divisor > 0 ? 1 : -1)); 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, temp, Abs(divisor)); 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, result, Operand(1)); 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// TODO(svenpanne) Refactor this to avoid code duplication with DoDivI. 1427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivI(LFlooringDivI* instr) { 1428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation* hdiv = instr->hydrogen(); 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->dividend()); 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(instr->divisor()); 1431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x / 0. 1434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand::Zero()); 1436014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kDivisionByZero); 1437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label positive; 1442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen_value()->CheckFlag(HValue::kCanBeDivByZero)) { 1443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the test only if it hadn't be done above. 1444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand::Zero()); 1445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &positive); 1447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1448014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&positive); 1450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && 1454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!CpuFeatures::IsSupported(SUDIV) || 1455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32))) { 1456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We don't need to check for overflow when truncating with sdiv 1457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // support because, on ARM, sdiv kMinInt, -1 -> kMinInt. 1458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand(kMinInt)); 1459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand(-1), eq); 1460014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kOverflow); 1461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 1465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result, left, right); 1466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vleft = ToDoubleRegister(instr->temp()); 1468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vright = double_scratch0(); 1469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), left); 1470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vleft, double_scratch0().low()); 1471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), right); 1472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vright, double_scratch0().low()); 1473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(vleft, vleft, vright); // vleft now contains the result. 1474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), vleft); 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(result, double_scratch0().low()); 1476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register remainder = scratch0(); 1480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(remainder, result, right, left); 1481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(remainder, Operand::Zero()); 1482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &done); 1483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(remainder, remainder, Operand(right)); 1484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, result, Operand(remainder, ASR, 31)); 1485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMulI(LMulI* instr) { 1490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Note that result may alias left. 1492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 1493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool bailout_on_minus_zero = 1496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero); 1497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 1498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsConstantOperand()) { 1500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t constant = ToInteger32(LConstantOperand::cast(right_op)); 1501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (bailout_on_minus_zero && (constant < 0)) { 1503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The case of a null constant will be handled separately. 1504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If constant is negative and left is null, the result should be -0. 1505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1506014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 1507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant) { 15103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case -1: 1511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (overflow) { 1512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand::Zero(), SetCC); 1513014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand::Zero()); 1516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 15183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case 0: 15193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (bailout_on_minus_zero) { 15203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // If left is strictly negative and the constant is null, the 15213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // result is -0. Deoptimize if required, otherwise return 0. 1522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1523014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(mi, instr, Deoptimizer::kMinusZero); 15243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 15263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 15273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case 1: 15283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 15293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 15303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch default: 15313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Multiplying by powers of two and powers of two plus or minus 15323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // one can be done faster with shifted operands. 15333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // For other constants we emit standard code. 15343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int32_t mask = constant >> 31; 15353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch uint32_t constant_abs = (constant + mask) ^ mask; 15363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base::bits::IsPowerOfTwo32(constant_abs)) { 1538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs); 1539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift)); 15403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Correct the sign of the result is the constant is negative. 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 1542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (base::bits::IsPowerOfTwo32(constant_abs - 1)) { 1543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs - 1); 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, left, Operand(left, LSL, shift)); 1545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Correct the sign of the result is the constant is negative. 1546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (base::bits::IsPowerOfTwo32(constant_abs + 1)) { 1548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs + 1); 1549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand(left, LSL, shift)); 1550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Correct the sign of the result is the constant is negative. 1551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 15523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 15533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Generate standard code. 15543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(ip, Operand(constant)); 15553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mul(result, left, ip); 15563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 15573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 1560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right_op->IsRegister()); 1561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(right_op); 1562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (overflow) { 1564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 15653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // scratch:result = left * right. 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmi()) { 1567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(result, left); 1568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, scratch, result, right); 1569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, scratch, left, right); 1571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(scratch, Operand(result, ASR, 31)); 1573014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kOverflow); 1574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 1575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmi()) { 1576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(result, left); 1577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul(result, result, right); 1578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul(result, left, right); 1580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 15823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 15833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (bailout_on_minus_zero) { 15843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Label done; 1585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ teq(left, Operand(right)); 1586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &done); 1587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Bail out if the result is minus zero. 1588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 1589014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 15903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(&done); 1591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1596b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoBitI(LBitI* instr) { 1597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left_op = instr->left(); 1598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(left_op->IsRegister()); 16003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register left = ToRegister(left_op); 16013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 16023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Operand right(no_reg); 160344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsStackSlot()) { 16053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch right = Operand(EmitLoadRegister(right_op, ip)); 160644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right_op->IsRegister() || right_op->IsConstantOperand()); 16083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch right = ToOperand(right_op); 160944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 161044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1611b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1612b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_AND: 16133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ and_(result, left, right); 1614b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1615b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_OR: 16163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ orr(result, left, right); 1617b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1618b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_XOR: 1619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsConstantOperand() && right.immediate() == int32_t(~0)) { 1620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mvn(result, Operand(left)); 1621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(result, left, right); 1623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1624b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1625b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1626b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1631b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1632b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoShiftI(LShiftI* instr) { 16333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Both 'left' and 'right' are "used at start" (see LCodeGen::DoShift), so 16343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // result may alias either of them. 1635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 16373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 16389fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 16393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (right_op->IsRegister()) { 16403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Mask the right_op operand. 16413fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ and_(scratch, ToRegister(right_op), Operand(0x1F)); 1642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::ROR: 1644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, ROR, scratch)); 1645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1646b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SAR: 16473fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, ASR, scratch)); 1648b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1649b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHR: 1650b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->can_deopt()) { 16513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, scratch), SetCC); 1652014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(mi, instr, Deoptimizer::kNegativeValue); 1653b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 16543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, scratch)); 1655b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1656b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1657b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHL: 16583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSL, scratch)); 1659b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1661b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1662b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 16653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Mask the right_op operand. 16663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int value = ToInteger32(LConstantOperand::cast(right_op)); 1667b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); 1668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::ROR: 1670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_count != 0) { 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, ROR, shift_count)); 1672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result, left); 1674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1676b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SAR: 1677b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (shift_count != 0) { 16783fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, ASR, shift_count)); 16793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 16803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHR: 16843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (shift_count != 0) { 16853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, shift_count)); 1686b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 16873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (instr->can_deopt()) { 16883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ tst(left, Operand(0x80000000)); 1689014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNegativeValue); 16903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 16913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1692b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHL: 1695b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (shift_count != 0) { 1696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi() && 1697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->can_deopt()) { 1698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_count != 1) { 1699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift_count - 1)); 1700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, result, SetCC); 1701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, left, SetCC); 1703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1704014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift_count)); 1707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 17083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 17093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1710b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1712b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1713b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1714b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1715b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1717b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSubI(LSubI* instr) { 1721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 17233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LOperand* result = instr->result(); 172444f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 172544f0eee88ff00398ff7f715fab053374d808c90dSteve Block SBit set_cond = can_overflow ? SetCC : LeaveCC; 172644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 172844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register right_reg = EmitLoadRegister(right, ip); 17293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ sub(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 173044f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 17323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ sub(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 173344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 173444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 173544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (can_overflow) { 1736014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1737b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1738b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1739b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoRSubI(LRSubI* instr) { 1742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 1744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* result = instr->result(); 1745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 1746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SBit set_cond = can_overflow ? SetCC : LeaveCC; 1747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 1749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = EmitLoadRegister(right, ip); 1750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 1751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 1753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 1754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_overflow) { 1757014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantI(LConstantI* instr) { 1763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantS(LConstantS* instr) { 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 17699fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block} 1770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantD(LConstantD* instr) { 1773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->result()->IsDoubleRegister()); 1774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 1775014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#if V8_HOST_ARCH_IA32 1776014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Need some crappy work-around for x87 sNaN -> qNaN breakage in simulator 1777014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // builds. 1778014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch uint64_t bits = instr->bits(); 1779014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if ((bits & V8_UINT64_C(0x7FF8000000000000)) == 1780014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch V8_UINT64_C(0x7FF0000000000000)) { 1781014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch uint32_t lo = static_cast<uint32_t>(bits); 1782014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch uint32_t hi = static_cast<uint32_t>(bits >> 32); 1783014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(ip, Operand(lo)); 1784014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(scratch0(), Operand(hi)); 1785014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ vmov(result, ip, scratch0()); 1786014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch return; 1787014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 1788014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#endif 1789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double v = instr->value(); 1790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Vmov(result, v, scratch0()); 1791b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1792b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1793b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantE(LConstantE* instr) { 1795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 17963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 17973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 17983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantT(LConstantT* instr) { 1800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = instr->value(isolate()); 1801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllowDeferredHandleDereference smi_check; 1802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(ToRegister(instr->result()), object); 1803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1804b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1805b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMapEnumLength(LMapEnumLength* instr) { 1807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register map = ToRegister(instr->value()); 1809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EnumLength(result, map); 1810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1812b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMemOperand LCodeGen::BuildSeqStringOperand(Register string, 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* index, 1815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding) { 1816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index->IsConstantOperand()) { 1817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = ToInteger32(LConstantOperand::cast(index)); 1818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::TWO_BYTE_ENCODING) { 1819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset *= kUC16Size; 1820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kCharSize == 1); 1822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FieldMemOperand(string, SeqString::kHeaderSize + offset); 1823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(string)); 1826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(ToRegister(index))); 1827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 1828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, string, Operand(ToRegister(index))); 1829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kUC16Size == 2); 1831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, string, Operand(ToRegister(index), LSL, 1)); 1832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FieldMemOperand(scratch, SeqString::kHeaderSize); 1834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoSeqStringGetChar(LSeqStringGetChar* instr) { 1838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding = instr->hydrogen()->encoding(); 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register string = ToRegister(instr->string()); 18403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code) { 1843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(string, HeapObject::kMapOffset)); 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(scratch, scratch, 1848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(kStringRepresentationMask | kStringEncodingMask)); 1849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; 1850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; 1851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(encoding == String::ONE_BYTE_ENCODING 1852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? one_byte_seq_type : two_byte_seq_type)); 1853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Check(eq, kUnexpectedStringType); 1854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = BuildSeqStringOperand(string, instr->index(), encoding); 1857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 1858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(result, operand); 1859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrh(result, operand); 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1862b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1863b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1864b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) { 1866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding = instr->hydrogen()->encoding(); 1867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register string = ToRegister(instr->string()); 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 1869b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1870b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_debug_code) { 1871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 1872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; 1873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; 1874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int encoding_mask = 1875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->encoding() == String::ONE_BYTE_ENCODING 1876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? one_byte_seq_type : two_byte_seq_type; 1877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EmitSeqStringSetCharCheck(string, index, value, encoding_mask); 1878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = BuildSeqStringOperand(string, instr->index(), encoding); 1881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ strb(value, operand); 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ strh(value, operand); 1885b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1886b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1887b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1888b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoAddI(LAddI* instr) { 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 18923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LOperand* result = instr->result(); 189344f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 189444f0eee88ff00398ff7f715fab053374d808c90dSteve Block SBit set_cond = can_overflow ? SetCC : LeaveCC; 1895b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 189744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register right_reg = EmitLoadRegister(right, ip); 18983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ add(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 189944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 19013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ add(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 190244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 1903b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 190444f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (can_overflow) { 1905014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 1906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathMinMax(LMathMinMax* instr) { 1911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 1913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMathMinMax::Operation operation = instr->hydrogen()->operation(); 1914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmiOrInteger32()) { 1915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition condition = (operation == HMathMinMax::kMathMin) ? le : ge; 1916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(left); 1917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand right_op = (right->IsRegister() || right->IsConstantOperand()) 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? ToOperand(right) 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Operand(EmitLoadRegister(right, ip)); 1920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 1921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, right_op); 1922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg, condition); 1923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, right_op, LeaveCC, NegateCondition(condition)); 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->representation().IsDouble()); 1926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister left_reg = ToDoubleRegister(left); 1927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister right_reg = ToDoubleRegister(right); 1928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(instr->result()); 1929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label result_is_nan, return_left, return_right, check_zero, done; 1930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(left_reg, right_reg); 1931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation == HMathMinMax::kMathMin) { 1932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(mi, &return_left); 1933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(gt, &return_right); 1934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(mi, &return_right); 1936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(gt, &return_left); 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(vs, &result_is_nan); 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Left equals right => check for -0. 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(left_reg, 0.0); 1941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_reg.is(result_reg) || right_reg.is(result_reg)) { 1942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); // left == right != 0. 1943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &return_left); // left == right != 0. 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // At this point, both left and right are either 0 or -0. 1947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation == HMathMinMax::kMathMin) { 1948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We could use a single 'vorr' instruction here if we had NEON support. 1949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vneg(left_reg, left_reg); 1950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vsub(result_reg, left_reg, right_reg); 1951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vneg(result_reg, result_reg); 1952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we operate on +0 and/or -0, vadd and vand have the same effect; 1954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the decision for vadd is easy because vand is a NEON instruction. 1955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(result_reg, left_reg, right_reg); 1956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 1958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_is_nan); 1960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(result_reg, left_reg, right_reg); 1961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 1962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&return_right); 1964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, right_reg); 1965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_reg.is(result_reg)) { 1966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 1967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&return_left); 1970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg); 1971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1973b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1974b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1975b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1976b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1977b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArithmeticD(LArithmeticD* instr) { 1978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister left = ToDoubleRegister(instr->left()); 1979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister right = ToDoubleRegister(instr->right()); 1980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 1981b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1982b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::ADD: 19833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vadd(result, left, right); 1984b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1985b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SUB: 19863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsub(result, left, right); 1987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1988b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::MUL: 19893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vmul(result, left, right); 1990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::DIV: 19923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vdiv(result, left, right); 1993b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1994b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::MOD: { 1995257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ PrepareCallCFunction(0, 2, scratch0()); 1996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovToFloatParameters(left, right); 199744f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ CallCFunction( 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalReference::mod_two_doubles_operation(isolate()), 1999257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 0, 2); 20001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Move the result in the double result register. 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovFromFloatResult(result); 2002b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2003b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2004b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 2005b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2006b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2007b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2008b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2009b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2010b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2011b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArithmeticT(LArithmeticT* instr) { 2012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->left()).is(r1)); 2014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->right()).is(r0)); 2015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 2016b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> code = 2018014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CodeFactory::BinaryOpIC(isolate(), instr->op(), instr->strength()).code(); 2019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission to ensure nop indicating no inlined smi code 2020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is in the correct position. 2021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 2022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(code, RelocInfo::CODE_TARGET, instr); 2023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2024b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2025b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochtemplate<class InstrType> 2027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitBranch(InstrType instr, Condition condition) { 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int left_block = instr->TrueDestination(chunk_); 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int right_block = instr->FalseDestination(chunk_); 2030b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int next_block = GetNextEmittedBlock(); 2032b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_block == left_block || condition == al) { 2034b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch EmitGoto(left_block); 2035b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (left_block == next_block) { 2036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(NegateCondition(condition), chunk_->GetAssemblyLabel(right_block)); 2037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (right_block == next_block) { 2038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(left_block)); 2039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(left_block)); 2041b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(chunk_->GetAssemblyLabel(right_block)); 2042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2044b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2045b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2046014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochtemplate <class InstrType> 2047014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::EmitTrueBranch(InstrType instr, Condition condition) { 2048014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int true_block = instr->TrueDestination(chunk_); 2049014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(condition, chunk_->GetAssemblyLabel(true_block)); 2050014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 2051014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2052014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2053014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochtemplate <class InstrType> 2054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitFalseBranch(InstrType instr, Condition condition) { 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int false_block = instr->FalseDestination(chunk_); 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(false_block)); 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDebugBreak(LDebugBreak* instr) { 2061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("LBreak"); 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2064b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoBranch(LBranch* instr) { 20663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Representation r = instr->hydrogen()->value()->representation(); 2067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsInteger32() || r.IsSmi()) { 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2072b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister reg = ToDoubleRegister(instr->value()); 2075b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Test the double value. Zero and NaN are false. 2076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(reg, 0.0); 2077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN -> false) 2078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2079b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsTagged()); 2081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 208269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HType type = instr->hydrogen()->value()->type(); 208369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (type.IsBoolean()) { 2084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 208569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kTrueValueRootIndex); 2086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 208769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else if (type.IsSmi()) { 2088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsJSArray()) { 2092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, al); 2094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsHeapNumber()) { 2095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch = double_scratch0(); 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); 2098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Test the double value. Zero and NaN are false. 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(dbl_scratch, 0.0); 2100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN) 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsString()) { 2103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand::Zero()); 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 210869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); 210969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Avoid deopts in the case where we've never executed this path before. 2110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic(); 211169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 211269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::UNDEFINED)) { 211369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // undefined -> false. 211469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kUndefinedValueRootIndex); 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 211669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 211769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::BOOLEAN)) { 211869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Boolean -> its value. 211969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kTrueValueRootIndex); 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->TrueLabel(chunk_)); 212169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kFalseValueRootIndex); 2122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 212369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 212469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::NULL_TYPE)) { 212569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // 'null' -> false. 212669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kNullValueRootIndex); 2127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 212869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 212969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 213069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::SMI)) { 213169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Smis: 0 -> false, all other -> true. 2132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 2134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(reg, instr->TrueLabel(chunk_)); 213569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else if (expected.NeedsMap()) { 213669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // If we need a map later and have a Smi -> deopt. 2137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(reg); 2138014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kSmi); 213969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 214069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 214169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch const Register map = scratch0(); 214269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.NeedsMap()) { 214369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldr(map, FieldMemOperand(reg, HeapObject::kMapOffset)); 214469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 214569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.CanBeUndetectable()) { 214669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Undetectable -> false. 214769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldrb(ip, FieldMemOperand(map, Map::kBitFieldOffset)); 214869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ tst(ip, Operand(1 << Map::kIsUndetectable)); 2149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, instr->FalseLabel(chunk_)); 215069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 215169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 215269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 215369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { 215469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // spec object -> true. 2155014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareInstanceType(map, ip, FIRST_JS_RECEIVER_TYPE); 2156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ge, instr->TrueLabel(chunk_)); 215769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 215869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 215969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::STRING)) { 216069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // String value -> false iff empty. 216169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Label not_string; 216269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareInstanceType(map, ip, FIRST_NONSTRING_TYPE); 216369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ b(ge, ¬_string); 216469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); 2165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand::Zero()); 2166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, instr->TrueLabel(chunk_)); 2167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(instr->FalseLabel(chunk_)); 216869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ bind(¬_string); 216969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 217069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected.Contains(ToBooleanStub::SYMBOL)) { 2172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Symbol value -> true. 2173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareInstanceType(map, ip, SYMBOL_TYPE); 2174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->TrueLabel(chunk_)); 2175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2177014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (expected.Contains(ToBooleanStub::SIMD_VALUE)) { 2178014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // SIMD value -> true. 2179014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareInstanceType(map, ip, SIMD128_VALUE_TYPE); 2180014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(eq, instr->TrueLabel(chunk_)); 2181014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 2182014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 218369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { 218469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // heap number -> false iff +0, -0, or NaN. 2185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch = double_scratch0(); 218669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Label not_heap_number; 218769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(map, Heap::kHeapNumberMapRootIndex); 218869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ b(ne, ¬_heap_number); 218969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); 219069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ VFPCompareAndSetFlags(dbl_scratch, 0.0); 2191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // NaN -> false. 2192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); // +0, -0 -> false. 2193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(instr->TrueLabel(chunk_)); 219469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ bind(¬_heap_number); 219569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 219669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!expected.IsGeneric()) { 2198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We've seen something for the first time -> deopt. 2199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This can only happen if we are not generic already. 2200014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kUnexpectedObject); 2201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2205b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 22073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::EmitGoto(int block) { 2208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsNextEmittedBlock(block)) { 2209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(chunk_->GetAssemblyLabel(LookupDestination(block))); 2210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2211b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2213b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2214b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoGoto(LGoto* instr) { 22153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch EmitGoto(instr->block_id()); 2216b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2217b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2218b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2219b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochCondition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { 22201e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition cond = kNoCondition; 2221b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op) { 2222b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::EQ: 2223b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::EQ_STRICT: 2224b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = eq; 2225b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::NE: 2227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::NE_STRICT: 2228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cond = ne; 2229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 2230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::LT: 2231b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? lo : lt; 2232b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2233b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::GT: 2234b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? hi : gt; 2235b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2236b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::LTE: 2237b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? ls : le; 2238b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2239b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::GTE: 2240b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? hs : ge; 2241b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2242b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::IN: 2243b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::INSTANCEOF: 2244b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 2245b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2246b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2247b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return cond; 2248b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2249b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2250b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) { 2252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 2253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 2254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_unsigned = 2255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->left()->CheckFlag(HInstruction::kUint32) || 2256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->right()->CheckFlag(HInstruction::kUint32); 2257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition cond = TokenToCondition(instr->op(), is_unsigned); 22583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 22593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (left->IsConstantOperand() && right->IsConstantOperand()) { 22603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We can statically evaluate the comparison. 22613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double left_val = ToDouble(LConstantOperand::cast(left)); 22623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double right_val = ToDouble(LConstantOperand::cast(right)); 2263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int next_block = EvalComparison(instr->op(), left_val, right_val) ? 2264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_); 22653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmitGoto(next_block); 22661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 22673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->is_double()) { 22683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compare left and right operands as doubles and load the 22693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // resulting flags into the normal status register. 22703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ VFPCompareAndSetFlags(ToDoubleRegister(left), ToDoubleRegister(right)); 22713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If a NaN is involved, i.e. the result is unordered (V set), 22723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // jump to false block label. 2273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(vs, instr->FalseLabel(chunk_)); 22743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 22753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (right->IsConstantOperand()) { 2276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = ToInteger32(LConstantOperand::cast(right)); 2277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi()) { 2278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(left), Operand(Smi::FromInt(value))); 2279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(left), Operand(value)); 2281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 22823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (left->IsConstantOperand()) { 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = ToInteger32(LConstantOperand::cast(left)); 2284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi()) { 2285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(right), Operand(Smi::FromInt(value))); 2286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(right), Operand(value)); 2288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We commuted the operands, so commute the condition. 2290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cond = CommuteCondition(cond); 22913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 22923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(ToRegister(left), ToRegister(right)); 22933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, cond); 22961e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 2297b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2298b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2299b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 23003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { 2301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 2302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(instr->right()); 23031e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 23041e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(left, Operand(right)); 2305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2306b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2307b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2308b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) { 2310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsTagged()) { 2311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = ToRegister(instr->object()); 2312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(factory()->the_hole_value())); 2313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, ip); 2314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2317257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->object()); 2319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(input_reg, input_reg); 2320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitFalseBranch(instr, vc); 2321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 2323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, input_reg); 2324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(kHoleNanUpper32)); 2325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2326257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2327257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2328257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) { 2330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = instr->hydrogen()->value()->representation(); 2331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!rep.IsInteger32()); 2332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = ToRegister(instr->temp()); 2333b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 2335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(value, 0.0); 2337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitFalseBranch(instr, ne); 2338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, value); 2339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(0x80000000)); 2340b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 2342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CheckMap(value, 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 2344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap::kHeapNumberMapRootIndex, 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->FalseLabel(chunk()), 2346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DO_SMI_CHECK); 2347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(value, HeapNumber::kExponentOffset)); 2348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(value, HeapNumber::kMantissaOffset)); 2349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(0x80000000)); 2350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand(0x00000000), eq); 2351b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2353b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2354b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2355b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 23563ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochCondition LCodeGen::EmitIsString(Register input, 23573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register temp1, 2358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* is_not_string, 2359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = INLINE_SMI_CHECK) { 2360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_needed == INLINE_SMI_CHECK) { 2361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, is_not_string); 2362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 23633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareObjectType(input, temp1, temp1, FIRST_NONSTRING_TYPE); 23643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return lt; 23663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 23673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { 2370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 23723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = 2374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 2375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 23763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Condition true_cond = 2377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitIsString(reg, temp1, instr->FalseLabel(chunk_), check_needed); 23783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, true_cond); 23803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 23813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { 2384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = EmitLoadRegister(instr->value(), ip); 2385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(input_reg); 2386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2387b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2388b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2390257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { 2391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 2393257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, instr->FalseLabel(chunk_)); 2396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2397257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(temp, FieldMemOperand(input, HeapObject::kMapOffset)); 2398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrb(temp, FieldMemOperand(temp, Map::kBitFieldOffset)); 2399257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ tst(temp, Operand(1 << Map::kIsUndetectable)); 2400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2401257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2402257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2403257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 24043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochstatic Condition ComputeCompareCondition(Token::Value op) { 24053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 24063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::EQ_STRICT: 24073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::EQ: 24083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return eq; 24093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::LT: 24103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return lt; 24113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::GT: 24123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return gt; 24133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::LTE: 24143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return le; 24153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::GTE: 24163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ge; 24173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 24183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 24193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return kNoCondition; 24203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 24213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 24223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { 2425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2426014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->left()).is(r1)); 2427014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->right()).is(r0)); 24283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2429014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> code = CodeFactory::StringCompare(isolate()).code(); 2430014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(code, RelocInfo::CODE_TARGET, instr); 2431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, Operand::Zero()); 24323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2433014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitBranch(instr, ComputeCompareCondition(instr->op())); 24343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 24353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochstatic InstanceType TestType(HHasInstanceTypeAndBranch* instr) { 24381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType from = instr->from(); 24391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType to = instr->to(); 2440b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == FIRST_TYPE) return to; 2441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(from == to || to == LAST_TYPE); 2442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return from; 2443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2445b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 24463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochstatic Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { 24471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType from = instr->from(); 24481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType to = instr->to(); 2449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == to) return eq; 2450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (to == LAST_TYPE) return hs; 2451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == FIRST_TYPE) return ls; 2452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return eq; 2454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { 24589fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 2459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 2462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, instr->FalseLabel(chunk_)); 2463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 24651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ CompareObjectType(input, scratch, scratch, TestType(instr->hydrogen())); 2466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, BranchCondition(instr->hydrogen())); 2467b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2468b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2469b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2470e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { 2471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2472e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register result = ToRegister(instr->result()); 2473e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertString(input); 2475e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2476e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(result, FieldMemOperand(input, String::kHashFieldOffset)); 2477e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ IndexFromHash(result, result); 2478e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 2479e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2480e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoHasCachedArrayIndexAndBranch( 2482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LHasCachedArrayIndexAndBranch* instr) { 2483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2484e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register scratch = scratch0(); 2485e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2486e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(scratch, 2487e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch FieldMemOperand(input, String::kHashFieldOffset)); 2488e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ tst(scratch, Operand(String::kContainsCachedArrayIndexMask)); 2489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2490b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2491b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2492b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2493b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch// Branches to a label or falls through with the answer in flags. Trashes 24943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// the temp registers, but not the input. 2495b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::EmitClassOfTest(Label* is_true, 2496b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* is_false, 2497b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<String>class_name, 2498b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input, 2499b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register temp, 2500b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register temp2) { 2501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(temp)); 2502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(temp2)); 2503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp.is(temp2)); 25043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ JumpIfSmi(input, is_false); 2506b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2507014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareObjectType(input, temp, temp2, JS_FUNCTION_TYPE); 2508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (String::Equals(isolate()->factory()->Function_string(), class_name)) { 25093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(eq, is_true); 2510b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 2511014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(eq, is_false); 2512b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 2513b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2514b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check if the constructor in the map is a function. 2515014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register instance_type = ip; 2516014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ GetMapConstructor(temp, temp, temp2, instance_type); 2517b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2518b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Objects with a non-function constructor have class 'Object'. 2519014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(instance_type, Operand(JS_FUNCTION_TYPE)); 2520014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (String::Equals(isolate()->factory()->Object_string(), class_name)) { 2521b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, is_true); 2522b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 2523b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, is_false); 2524b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 2525b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2526b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // temp now contains the constructor function. Grab the 2527b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // instance class name from there. 2528b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(temp, FieldMemOperand(temp, JSFunction::kSharedFunctionInfoOffset)); 2529b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(temp, FieldMemOperand(temp, 2530b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch SharedFunctionInfo::kInstanceClassNameOffset)); 2531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The class name we are testing against is internalized since it's a literal. 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The name in the constructor is internalized because of the way the context 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is booted. This routine isn't expected to work for random API-created 2534b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // classes and it doesn't have to because you can't access it with natives 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // syntax. Since both sides are internalized it is sufficient to use an 2536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // identity comparison. 2537b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(temp, Operand(class_name)); 2538b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // End with the answer in flags. 2539b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2540b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2541b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2542b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { 2543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2544b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register temp = scratch0(); 2545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp()); 2546b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Handle<String> class_name = instr->hydrogen()->class_name(); 2547b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitClassOfTest(instr->TrueLabel(chunk_), instr->FalseLabel(chunk_), 2549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class_name, input, temp, temp2); 2550b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2552b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2553b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2554b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2555b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { 2556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 25589fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 25599fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(temp, FieldMemOperand(reg, HeapObject::kMapOffset)); 25609fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ cmp(temp, Operand(instr->map())); 2561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoInstanceOf(LInstanceOf* instr) { 2566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2567014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->left()).is(InstanceOfDescriptor::LeftRegister())); 2568014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->right()).is(InstanceOfDescriptor::RightRegister())); 2569014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 2570014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch InstanceOfStub stub(isolate()); 2571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 2572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2573b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2575014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::DoHasInPrototypeChainAndBranch( 2576014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LHasInPrototypeChainAndBranch* instr) { 2577014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register const object = ToRegister(instr->object()); 2578014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register const object_map = scratch0(); 2579014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register const object_instance_type = ip; 2580014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register const object_prototype = object_map; 2581014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register const prototype = ToRegister(instr->prototype()); 25821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2583014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // The {object} must be a spec object. It's sufficient to know that {object} 2584014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // is not a smi, since all other non-spec objects have {null} prototypes and 2585014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // will be ruled out below. 2586014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->ObjectNeedsSmiCheck()) { 2587014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ SmiTst(object); 2588014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitFalseBranch(instr, eq); 2589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 25901e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2591014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Loop through the {object}s prototype chain looking for the {prototype}. 2592014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(object_map, FieldMemOperand(object, HeapObject::kMapOffset)); 2593014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Label loop; 2594014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&loop); 2595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2596014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Deoptimize if the object needs to be access checked. 2597014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldrb(object_instance_type, 2598014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FieldMemOperand(object_map, Map::kBitFieldOffset)); 2599014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ tst(object_instance_type, Operand(1 << Map::kIsAccessCheckNeeded)); 2600014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kAccessCheck); 2601014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Deoptimize for proxies. 2602014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE); 2603014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kProxy); 2604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2605014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(object_prototype, FieldMemOperand(object_map, Map::kPrototypeOffset)); 2606014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(object_prototype, prototype); 2607014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitTrueBranch(instr, eq); 2608014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareRoot(object_prototype, Heap::kNullValueRootIndex); 2609014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitFalseBranch(instr, eq); 2610014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(object_map, FieldMemOperand(object_prototype, HeapObject::kMapOffset)); 2611014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(&loop); 2612086aeeaae12517475c22695a200be45495516549Ben Murdoch} 2613086aeeaae12517475c22695a200be45495516549Ben Murdoch 2614b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2615b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCmpT(LCmpT* instr) { 2616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2617b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Token::Value op = instr->op(); 2618b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2619014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = 2620014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CodeFactory::CompareIC(isolate(), op, instr->strength()).code(); 2621b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 2622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This instruction also signals no smi code inlined. 2623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, Operand::Zero()); 2624b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2625b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Condition condition = ComputeCompareCondition(op); 2626b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(ToRegister(instr->result()), 2627b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Heap::kTrueValueRootIndex, 2628b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch condition); 2629b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(ToRegister(instr->result()), 2630b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Heap::kFalseValueRootIndex, 2631b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch NegateCondition(condition)); 2632b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoReturn(LReturn* instr) { 2636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace && info()->IsOptimizing()) { 2637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Push the return value on the stack as the parameter. 2638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Runtime::TraceExit returns its parameter in r0. We're leaving the code 2639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // managed by the register allocator and tearing down the frame, it's 2640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // safe to write to the context register. 2641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ push(r0); 2642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 2643014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CallRuntime(Runtime::kTraceExit); 2644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->saves_caller_doubles()) { 2646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RestoreCallerDoubles(); 2647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 2649014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch masm_->LeaveFrame(StackFrame::JAVA_SCRIPT); 2650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { ConstantPoolUnavailableScope constant_pool_unavailable(masm()); 2652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->has_constant_parameter_count()) { 2653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int parameter_count = ToInteger32(instr->constant_parameter_count()); 2654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t sp_delta = (parameter_count + 1) * kPointerSize; 2655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (sp_delta != 0) { 2656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(sp, sp, Operand(sp_delta)); 2657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2659958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(info()->IsStub()); // Functions would need to drop one more value. 2660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->parameter_count()); 2661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The argument count parameter is a smi 2662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(reg); 2663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(sp, sp, Operand(reg, LSL, kPointerSizeLog2)); 2664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Jump(lr); 2667b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2668b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochtemplate <class T> 2672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitVectorLoadICRegisters(T* instr) { 2673958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register vector_register = ToRegister(instr->temp_vector()); 2674014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register slot_register = LoadDescriptor::SlotRegister(); 2675014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(vector_register.is(LoadWithVectorDescriptor::VectorRegister())); 2676958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(slot_register.is(r0)); 2677958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 2678958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier AllowDeferredHandleDereference vector_structure_check; 2679958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); 2680958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ Move(vector_register, vector); 2681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // No need to allocate this register. 2682014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FeedbackVectorSlot slot = instr->hydrogen()->slot(); 2683014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int index = vector->GetIndex(slot); 2684014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(slot_register, Operand(Smi::FromInt(index))); 2685014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 2686014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2687014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2688014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochtemplate <class T> 2689014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::EmitVectorStoreICRegisters(T* instr) { 2690014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register vector_register = ToRegister(instr->temp_vector()); 2691014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register slot_register = ToRegister(instr->temp_slot()); 2692014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 2693014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch AllowDeferredHandleDereference vector_structure_check; 2694014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); 2695014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(vector_register, vector); 2696014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch FeedbackVectorSlot slot = instr->hydrogen()->slot(); 2697958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier int index = vector->GetIndex(slot); 2698958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ mov(slot_register, Operand(Smi::FromInt(index))); 2699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 27028b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { 2703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->global_object()) 2705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .is(LoadDescriptor::ReceiverRegister())); 2706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 27078b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 2708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(LoadDescriptor::NameRegister(), Operand(instr->name())); 2709014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr); 2710014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = 2711014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CodeFactory::LoadICInOptimizedCode(isolate(), instr->typeof_mode(), 2712014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch SLOPPY, PREMONOMORPHIC).code(); 2713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 27148b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 27158b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 27168b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 2717b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdochvoid LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { 27181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register context = ToRegister(instr->context()); 2719b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register result = ToRegister(instr->result()); 2720014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, ContextMemOperand(context, instr->slot_index())); 27213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 27223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 27233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(result, ip); 27243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->DeoptimizesOnHole()) { 2725014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kHole); 27263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 27273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(result, Operand(factory()->undefined_value()), LeaveCC, eq); 27283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2730b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 2731b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2732b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 27331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { 27341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register context = ToRegister(instr->context()); 27351e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register value = ToRegister(instr->value()); 27363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 2737014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch MemOperand target = ContextMemOperand(context, instr->slot_index()); 27383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 27393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label skip_assignment; 27403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 27413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 27423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch, target); 27433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 27443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(scratch, ip); 27453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->DeoptimizesOnHole()) { 2746014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kHole); 27473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 27483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(ne, &skip_assignment); 27493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2750c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch } 27513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 27523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(value, target); 27533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 27543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SmiCheck check_needed = 2755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 2756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 27573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteContextSlot(context, 27583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch target.offset(), 27593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 27603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch scratch, 2761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 27623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 27633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 27643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch check_needed); 27653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 27673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&skip_assignment); 27681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 27691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 27701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { 2772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = instr->hydrogen()->access(); 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = access.offset(); 2774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->object()); 2775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsExternalMemory()) { 2777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 2778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = MemOperand(object, offset); 2779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Load(result, operand, access.representation()); 2780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsDouble()) { 2784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 2785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, FieldMemOperand(object, offset)); 2786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 27899fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register result = ToRegister(instr->result()); 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!access.IsInobject()) { 27919fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); 2792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object = result; 279344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 2794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(object, offset); 2795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Load(result, operand, access.representation()); 279644f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 279744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 279844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { 2800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); 2802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 2803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Name is always in r2. 2805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(LoadDescriptor::NameRegister(), Operand(instr->name())); 2806014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr); 2807958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Handle<Code> ic = 2808014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CodeFactory::LoadICInOptimizedCode( 2809014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate(), NOT_INSIDE_TYPEOF, instr->hydrogen()->language_mode(), 2810014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->hydrogen()->initialization_state()).code(); 2811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 2812b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 28159fac840a46e8b7e26894f4792ba26dde14c56b04Steve Blockvoid LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { 28169fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 28179fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register function = ToRegister(instr->function()); 28189fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register result = ToRegister(instr->result()); 28199fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28209fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Get the prototype or initial map from the function. 28219fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, 28229fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); 28239fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28249fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Check that the function has a prototype or an initial map. 28259fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 28269fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ cmp(result, ip); 2827014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kHole); 28289fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28299fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // If the function does not have an initial map, we're done. 28309fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Label done; 28319fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ CompareObjectType(result, scratch, scratch, MAP_TYPE); 28329fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ b(ne, &done); 28339fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28349fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Get the prototype from the initial map. 28359fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, FieldMemOperand(result, Map::kPrototypeOffset)); 28369fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28379fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // All done. 28389fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ bind(&done); 28399fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block} 28409fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 28419fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 2842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadRoot(LLoadRoot* instr) { 28431e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 2844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(result, instr->index()); 28451e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 28461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2848b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { 2849086aeeaae12517475c22695a200be45495516549Ben Murdoch Register arguments = ToRegister(instr->arguments()); 2850086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 2851086aeeaae12517475c22695a200be45495516549Ben Murdoch // There are two words between the frame pointer and the last argument. 2852086aeeaae12517475c22695a200be45495516549Ben Murdoch // Subtracting from length accounts for one of them add one more. 2853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->length()->IsConstantOperand()) { 2854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_length = ToInteger32(LConstantOperand::cast(instr->length())); 2855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->index()->IsConstantOperand()) { 2856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 2857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = (const_length - const_index) + 1; 2858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, index * kPointerSize)); 2859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 2861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, index, Operand(const_length + 1)); 2862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 28633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 2864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->index()->IsConstantOperand()) { 2865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 2866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 2867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int loc = const_index - 1; 2868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (loc != 0) { 2869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, length, Operand(loc)); 2870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 2871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, length, LSL, kPointerSizeLog2)); 2873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 2876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 2877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, length, index); 2878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, result, Operand(1)); 2879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 28803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 28813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 28823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 28833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) { 2885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register external_pointer = ToRegister(instr->elements()); 2886257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register key = no_reg; 2887589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch ElementsKind elements_kind = instr->elements_kind(); 2888257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 2889257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int constant_key = 0; 2890257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (key_is_constant) { 2891257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 2892257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (constant_key & 0xF0000000) { 2893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 2894257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 2895257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 2896257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch key = ToRegister(instr->key()); 2897257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(elements_kind); 2899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 2900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 2901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 2902257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2903014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (elements_kind == FLOAT32_ELEMENTS || elements_kind == FLOAT64_ELEMENTS) { 29043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 29053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Operand operand = key_is_constant 2906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? Operand(constant_key << element_size_shift) 29073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch : Operand(key, LSL, shift_size); 2908257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ add(scratch0(), external_pointer, operand); 2909014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (elements_kind == FLOAT32_ELEMENTS) { 2910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(double_scratch0().low(), scratch0(), base_offset); 2911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_f32(result, double_scratch0().low()); 2912589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch } else { // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS 2913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, scratch0(), base_offset); 2914257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 29158b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else { 29163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand mem_operand = PrepareKeyedOperand( 2918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, external_pointer, key_is_constant, constant_key, 2919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch element_size_shift, shift_size, base_offset); 29203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch switch (elements_kind) { 2921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT8_ELEMENTS: 2922257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrsb(result, mem_operand); 29238b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_ELEMENTS: 2925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_CLAMPED_ELEMENTS: 2926257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrb(result, mem_operand); 29278b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT16_ELEMENTS: 2929257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrsh(result, mem_operand); 29308b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT16_ELEMENTS: 2932257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrh(result, mem_operand); 29338b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT32_ELEMENTS: 2935257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(result, mem_operand); 29368b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT32_ELEMENTS: 2938257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(result, mem_operand); 2939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) { 2940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(0x80000000)); 2941014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(cs, instr, Deoptimizer::kNegativeValue); 2942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 29438b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 2944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT32_ELEMENTS: 2945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT64_ELEMENTS: 2946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_DOUBLE_ELEMENTS: 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_ELEMENTS: 2948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_SMI_ELEMENTS: 2949589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_DOUBLE_ELEMENTS: 2950589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_ELEMENTS: 2951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_SMI_ELEMENTS: 2952589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case DICTIONARY_ELEMENTS: 2953014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case FAST_SLOPPY_ARGUMENTS_ELEMENTS: 2954014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: 29558b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch UNREACHABLE(); 29568b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 29578b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 29588b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 29591e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 29601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 29611e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) { 2963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 2964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 2965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = no_reg; 2966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 2967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 2968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); 2970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 2972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 2973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 2974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key & 0xF0000000) { 2975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 2976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset += constant_key * kDoubleSize; 2978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(base_offset)); 2980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!key_is_constant) { 2982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key = ToRegister(instr->key()); 2983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 2984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 2985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, scratch, Operand(key, LSL, shift_size)); 2986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, scratch, 0); 2989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 2991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, MemOperand(scratch, sizeof(kHoleNanLower32))); 2992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(kHoleNanUpper32)); 2993014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kHole); 2994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) { 2999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 3000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 3002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register store_base = scratch; 3003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = instr->base_offset(); 3004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->key()->IsConstantOperand()) { 3006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); 3007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset += ToInteger32(const_operand) * kPointerSize; 3008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_base = elements; 3009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = ToRegister(instr->key()); 3011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Even though the HLoadKeyed instruction forces the input 3012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation for the key to be an integer, the input gets replaced 3013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // during bound check elimination with the index argument to the bounds 3014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check, which can be tagged, so that case must be handled here, too. 3015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->key()->representation().IsSmi()) { 3016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); 3017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); 3019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(store_base, offset)); 3022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for the hole value. 3024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 3025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) { 3026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(result); 3027014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotASmi); 3028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); 3030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, scratch); 3031014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kHole); 3032014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3033014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) { 3034014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS); 3035014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Label done; 3036014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); 3037014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(result, scratch); 3038014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(ne, &done); 3039014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (info()->IsStub()) { 3040014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // A stub can safely convert the hole to undefined only if the array 3041014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // protector cell contains (Smi) Isolate::kArrayProtectorValid. Otherwise 3042014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // it needs to bail out. 3043014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(result, Heap::kArrayProtectorRootIndex); 3044014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, FieldMemOperand(result, Cell::kValueOffset)); 3045014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(result, Operand(Smi::FromInt(Isolate::kArrayProtectorValid))); 3046014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kHole); 3047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3048014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(result, Heap::kUndefinedValueRootIndex); 3049014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&done); 3050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { 3055014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->is_fixed_typed_array()) { 3056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedExternalArray(instr); 3057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->representation().IsDouble()) { 3058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedFixedDoubleArray(instr); 3059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedFixedArray(instr); 3061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMemOperand LCodeGen::PrepareKeyedOperand(Register key, 3066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register base, 3067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant, 3068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key, 3069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size, 3070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size, 3071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset) { 3072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 3073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, (constant_key << element_size) + base_offset); 3074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base_offset == 0) { 3077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_size >= 0) { 3078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, key, LSL, shift_size); 3079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(-1, shift_size); 3081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, key, LSR, 1); 3082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_size >= 0) { 3086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch0(), base, Operand(key, LSL, shift_size)); 3087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(scratch0(), base_offset); 3088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(-1, shift_size); 3090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch0(), base, Operand(key, ASR, 1)); 3091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(scratch0(), base_offset); 3092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { 3097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); 3099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->key()).is(LoadDescriptor::NameRegister())); 3100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3101014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->HasVectorAndSlot()) { 3102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr); 3103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3105014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = CodeFactory::KeyedLoadICInOptimizedCode( 3106014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate(), instr->hydrogen()->language_mode(), 3107014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->hydrogen()->initialization_state()).code(); 3108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 3109b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3110b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3111b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3112b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { 3113086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 3114086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 3115086aeeaae12517475c22695a200be45495516549Ben Murdoch 3116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->from_inlined()) { 3117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, sp, Operand(2 * kPointerSize)); 3118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check if the calling frame is an arguments adaptor frame. 3120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, adapted; 3121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 3122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(scratch, StandardFrameConstants::kContextOffset)); 3123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); 3124086aeeaae12517475c22695a200be45495516549Ben Murdoch 3125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Result is the frame pointer for the frame if not adapted and for the real 3126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // frame below the adaptor frame if adapted. 3127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, fp, LeaveCC, ne); 3128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, scratch, LeaveCC, eq); 3129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3131b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { 3134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elem = ToRegister(instr->elements()); 3135086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 3136086aeeaae12517475c22695a200be45495516549Ben Murdoch 3137086aeeaae12517475c22695a200be45495516549Ben Murdoch Label done; 3138086aeeaae12517475c22695a200be45495516549Ben Murdoch 3139086aeeaae12517475c22695a200be45495516549Ben Murdoch // If no arguments adaptor frame the number of arguments is fixed. 3140086aeeaae12517475c22695a200be45495516549Ben Murdoch __ cmp(fp, elem); 3141086aeeaae12517475c22695a200be45495516549Ben Murdoch __ mov(result, Operand(scope()->num_parameters())); 3142086aeeaae12517475c22695a200be45495516549Ben Murdoch __ b(eq, &done); 3143086aeeaae12517475c22695a200be45495516549Ben Murdoch 3144086aeeaae12517475c22695a200be45495516549Ben Murdoch // Arguments adaptor frame present. Get argument length from there. 3145086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(result, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 3146086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(result, 3147086aeeaae12517475c22695a200be45495516549Ben Murdoch MemOperand(result, ArgumentsAdaptorFrameConstants::kLengthOffset)); 3148086aeeaae12517475c22695a200be45495516549Ben Murdoch __ SmiUntag(result); 3149086aeeaae12517475c22695a200be45495516549Ben Murdoch 3150086aeeaae12517475c22695a200be45495516549Ben Murdoch // Argument length is in result register. 3151086aeeaae12517475c22695a200be45495516549Ben Murdoch __ bind(&done); 3152b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3153b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3154b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 31553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { 3156b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register receiver = ToRegister(instr->receiver()); 3157b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register function = ToRegister(instr->function()); 3158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3159b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register scratch = scratch0(); 3160b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 31613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // If the receiver is null or undefined, we have to pass the global 31623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // object as a receiver to normal functions. Values have to be 31633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // passed unchanged to builtins and strict-mode functions. 3164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label global_object, result_in_receiver; 31653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->known_function()) { 3167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not transform the receiver to object for strict mode 3168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // functions. 3169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, 3170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset)); 3171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, 3172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(scratch, SharedFunctionInfo::kCompilerHintsOffset)); 3173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int mask = 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize); 3174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(mask)); 3175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &result_in_receiver); 31763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not transform the receiver to object for builtins. 3178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize))); 3179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &result_in_receiver); 3180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 31813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 31823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Normal function. Replace undefined or null with global receiver. 3183b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(scratch, Heap::kNullValueRootIndex); 3184b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(receiver, scratch); 31851e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &global_object); 3186b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(scratch, Heap::kUndefinedValueRootIndex); 3187b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(receiver, scratch); 31881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &global_object); 3189b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 31901e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize if the receiver is not a JS object. 3191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(receiver); 3192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kSmi); 3193014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareObjectType(receiver, scratch, scratch, FIRST_JS_RECEIVER_TYPE); 3194014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(lt, instr, Deoptimizer::kNotAJavaScriptObject); 3195b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&result_in_receiver); 31971e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&global_object); 3198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, FieldMemOperand(function, JSFunction::kContextOffset)); 3199014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, ContextMemOperand(result, Context::NATIVE_CONTEXT_INDEX)); 3200014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, ContextMemOperand(result, Context::GLOBAL_PROXY_INDEX)); 3201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result.is(receiver)) { 3203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_in_receiver); 3204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label result_ok; 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&result_ok); 3207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_in_receiver); 3208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, receiver); 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_ok); 3210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 32113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 32123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 32133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 32143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoApplyArguments(LApplyArguments* instr) { 32153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register receiver = ToRegister(instr->receiver()); 32163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register function = ToRegister(instr->function()); 32173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register length = ToRegister(instr->length()); 32183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register elements = ToRegister(instr->elements()); 32193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 3220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(receiver.is(r0)); // Used for parameter count. 3221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(function.is(r1)); // Required by InvokeFunction. 3222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3223b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3224b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Copy the arguments to this function possibly from the 3225b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // adaptor frame below it. 3226b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch const uint32_t kArgumentsLimit = 1 * KB; 3227b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(length, Operand(kArgumentsLimit)); 3228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(hi, instr, Deoptimizer::kTooManyArguments); 3229b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3230b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Push the receiver and use the register to keep the original 3231b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // number of arguments. 3232b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ push(receiver); 3233b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ mov(receiver, length); 3234b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // The arguments are at a one pointer size offset from elements. 3235b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ add(elements, elements, Operand(1 * kPointerSize)); 3236b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3237b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Loop through the arguments pushing them onto the execution 3238b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // stack. 32391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label invoke, loop; 3240b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // length is a small non-negative integer, due to the test above. 3241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(length, Operand::Zero()); 3242b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(eq, &invoke); 3243b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ bind(&loop); 3244b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(scratch, MemOperand(elements, length, LSL, 2)); 3245b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ push(scratch); 3246b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ sub(length, length, Operand(1), SetCC); 3247b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, &loop); 3248b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3249b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ bind(&invoke); 3250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasPointerMap()); 32511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LPointerMap* pointers = instr->pointer_map(); 32522b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch SafepointGenerator safepoint_generator( 32532b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch this, pointers, Safepoint::kLazyDeopt); 32541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // The number of arguments is stored in receiver which is r0, as expected 32551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // by InvokeFunction. 32563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ParameterCount actual(receiver); 3257014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ InvokeFunction(function, no_reg, actual, CALL_FUNCTION, 3258014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch safepoint_generator); 3259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3260b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoPushArgument(LPushArgument* instr) { 3263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* argument = instr->value(); 3264b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (argument->IsDoubleRegister() || argument->IsDoubleStackSlot()) { 3265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kDoPushArgumentNotImplementedForDoubleType); 3266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 3267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register argument_reg = EmitLoadRegister(argument, ip); 3268b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ push(argument_reg); 3269b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDrop(LDrop* instr) { 3274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Drop(instr->count()); 32753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 32763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 32773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoThisFunction(LThisFunction* instr) { 32791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); 32811e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 32821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 32831e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoContext(LContext* instr) { 3285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If there is a non-return use, the context must be moved to a register. 32861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsOptimizing()) { 3288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(fp, StandardFrameConstants::kContextOffset)); 3289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If there is no frame, the context must be in cp. 3291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(result.is(cp)); 3292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 32931e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 32941e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 32951e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 32963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { 3297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(scratch0(), instr->hydrogen()->pairs()); 32993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(scratch0()); 33003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(scratch0(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); 33013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(scratch0()); 3302014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallRuntime(Runtime::kDeclareGlobals, instr); 33033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 33043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3306b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::CallKnownFunction(Handle<JSFunction> function, 3307014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int formal_parameter_count, int arity, 3308014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr) { 3309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool dont_adapt_arguments = 3310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; 3311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_invoke_directly = 3312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dont_adapt_arguments || formal_parameter_count == arity; 3313b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3314014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register function_reg = r1; 3315014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3316b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LPointerMap* pointers = instr->pointer_map(); 3317b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 33183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (can_invoke_directly) { 3319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Change context. 3320014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(cp, FieldMemOperand(function_reg, JSFunction::kContextOffset)); 3321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3322014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Always initialize new target and number of actual arguments. 3323014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(r3, Heap::kUndefinedValueRootIndex); 3324014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(r0, Operand(arity)); 33253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Invoke function. 3327014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(ip, FieldMemOperand(function_reg, JSFunction::kCodeEntryOffset)); 33283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Call(ip); 33293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set up deoptimization. 33313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 33323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 33333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 33343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ParameterCount count(arity); 3335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ParameterCount expected(formal_parameter_count); 3336014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ InvokeFunction(function_reg, expected, count, CALL_FUNCTION, generator); 33373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3338b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3339b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3340b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) { 3342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->context() != NULL); 3343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 33453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 33461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch = scratch0(); 33471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize if not a heap number. 33491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 33501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 33511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(scratch, Operand(ip)); 3352014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumber); 33531e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label done; 33551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register exponent = scratch0(); 33561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block scratch = no_reg; 33571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); 33581e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Check the sign of the argument. If the argument is positive, just 33593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // return it. 33601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ tst(exponent, Operand(HeapNumber::kSignMask)); 33613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Move the input to the result if necessary. 33623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, input); 33631e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &done); 33641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Input is negative. Reverse its sign. 33661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Preserve the value of all registers. 33678b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch { 3368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 33691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33708b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Registers were saved at the safepoint, so we can use 33718b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // many scratch registers. 33728b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp1 = input.is(r1) ? r0 : r1; 33738b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp2 = input.is(r2) ? r0 : r2; 33748b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp3 = input.is(r3) ? r0 : r3; 33758b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp4 = input.is(r4) ? r0 : r4; 33761e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33778b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // exponent: floating point exponent value. 33781e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33798b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Label allocated, slow; 33808b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ LoadRoot(tmp4, Heap::kHeapNumberMapRootIndex); 33818b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ AllocateHeapNumber(tmp1, tmp2, tmp3, tmp4, &slow); 33828b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ b(&allocated); 33831e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33848b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Slow case: Call the runtime system to do the number allocation. 33858b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bind(&slow); 33861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, instr, 3388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->context()); 33898b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Set the pointer to the new heap number in tmp. 33908b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch if (!tmp1.is(r0)) __ mov(tmp1, Operand(r0)); 33918b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Restore input_reg after call to runtime. 33928b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ LoadFromSafepointRegisterSlot(input, input); 33938b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); 33941e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33958b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bind(&allocated); 33968b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // exponent: floating point exponent value. 33978b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // tmp1: allocated heap number. 33988b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bic(exponent, exponent, Operand(HeapNumber::kSignMask)); 33998b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ str(exponent, FieldMemOperand(tmp1, HeapNumber::kExponentOffset)); 34008b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ ldr(tmp2, FieldMemOperand(input, HeapNumber::kMantissaOffset)); 34018b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ str(tmp2, FieldMemOperand(tmp1, HeapNumber::kMantissaOffset)); 34021e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 34033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ StoreToSafepointRegisterSlot(tmp1, result); 34048b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 34051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 34061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&done); 34071e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 34081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 34091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) { 3411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 34123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 3413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input, Operand::Zero()); 34143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, input, pl); 34151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // We can make rsb conditional because the previous cmp instruction 34161e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // will clear the V (overflow) flag and rsb won't set this flag 34171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // if input is positive. 3418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, input, Operand::Zero(), SetCC, mi); 34191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize on overflow. 3420014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 3421b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3423b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathAbs(LMathAbs* instr) { 34251e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Class for deferred case. 3426014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredMathAbsTaggedHeapNumber final : public LDeferredCode { 34271e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block public: 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, LMathAbs* instr) 34291e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block : LDeferredCode(codegen), instr_(instr) { } 3430014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 34311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); 34321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 3433014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 3434958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 34351e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block private: 3436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LMathAbs* instr_; 34371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block }; 34381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 34391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Representation r = instr->hydrogen()->value()->representation(); 34401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (r.IsDouble()) { 3441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 34423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 34433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vabs(result, input); 3444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (r.IsSmiOrInteger32()) { 34451e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block EmitIntegerMathAbs(instr); 34461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 34471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Representation is tagged. 34481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredMathAbsTaggedHeapNumber* deferred = 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 34511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Smi check. 34521e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ JumpIfNotSmi(input, deferred->entry()); 34531e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // If smi, handle it directly. 34541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block EmitIntegerMathAbs(instr); 34551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(deferred->exit()); 34561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 3457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathFloor(LMathFloor* instr) { 3461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 34621e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_high = scratch0(); 3464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, exact; 34651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryInt32Floor(result, input, input_high, double_scratch0(), &done, &exact); 3467014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kLostPrecisionOrNaN); 3468b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&exact); 347044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 347144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Test for -0. 3472b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 347344f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(ne, &done); 3474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_high, Operand::Zero()); 3475014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(mi, instr, Deoptimizer::kMinusZero); 347644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 3477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 3478b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3479b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathRound(LMathRound* instr) { 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3483e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register result = ToRegister(instr->result()); 3484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch1 = ToDoubleRegister(instr->temp()); 3485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_plus_dot_five = double_scratch1; 3486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_high = scratch0(); 3487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dot_five = double_scratch0(); 3488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label convert, done; 3489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Vmov(dot_five, 0.5, scratch0()); 3491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vabs(double_scratch1, input); 3492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(double_scratch1, dot_five); 3493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If input is in [-0.5, -0], the result is -0. 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If input is in [+0, +0.5[, the result is +0. 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the input is +0.5, the result is 1. 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(hi, &convert); // Out of [-0.5, +0.5]. 3497257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 3498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(input_high, input); 3499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_high, Operand::Zero()); 3500958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // [-0.5, -0]. 3501014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(mi, instr, Deoptimizer::kMinusZero); 3502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(input, dot_five); 3504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(1), LeaveCC, eq); // +0.5. 3505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Remaining cases: [+0, +0.5[ or [-0.5, +0.5[, depending on 3506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // flag kBailoutOnMinusZero. 3507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero(), LeaveCC, ne); 3508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 3509257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert); 3511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(input_plus_dot_five, input, dot_five); 3512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Reuse dot_five (double_scratch0) as we no longer need this value. 3513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryInt32Floor(result, input_plus_dot_five, input_high, double_scratch0(), 3514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &done, &done); 3515014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(al, instr, Deoptimizer::kLostPrecisionOrNaN); 3516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 3517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3518257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3519e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathFround(LMathFround* instr) { 3521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->value()); 3522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister output_reg = ToDoubleRegister(instr->result()); 3523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister scratch = double_scratch0(); 3524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f32_f64(scratch.low(), input_reg); 3525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_f32(output_reg, scratch.low()); 3526e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3527e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3528e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathSqrt(LMathSqrt* instr) { 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 35323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsqrt(result, input); 3533b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3534b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3535b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { 3537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister temp = double_scratch0(); 35403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Note that according to ECMA-262 15.8.2.13: 35423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Math.pow(-Infinity, 0.5) == Infinity 35433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Math.sqrt(-Infinity) == NaN 35443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label done; 3545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(temp, -V8_INFINITY, scratch0()); 35463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ VFPCompareAndSetFlags(input, temp); 35473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ vneg(result, temp, eq); 35483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&done, eq); 35493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 355044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Add +0 to convert -0 to +0. 35513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vadd(result, input, kDoubleRegZero); 35523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsqrt(result, result); 35533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&done); 355444f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 355544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 355644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3557e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid LCodeGen::DoPower(LPower* instr) { 3558e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Representation exponent_type = instr->hydrogen()->right()->representation(); 35593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Having marked this as a call, we can use any registers. 35603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Just make sure that the input/output registers are the expected ones. 3561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tagged_exponent = MathPowTaggedDescriptor::exponent(); 3562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->right()->IsDoubleRegister() || 3563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToDoubleRegister(instr->right()).is(d1)); 3564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->right()->IsRegister() || 3565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToRegister(instr->right()).is(tagged_exponent)); 3566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToDoubleRegister(instr->left()).is(d0)); 3567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToDoubleRegister(instr->result()).is(d2)); 3568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (exponent_type.IsSmi()) { 3570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::TAGGED); 3571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallStub(&stub); 3572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (exponent_type.IsTagged()) { 35733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label no_deopt; 3574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(tagged_exponent, &no_deopt); 3575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!r6.is(tagged_exponent)); 3576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r6, FieldMemOperand(tagged_exponent, HeapObject::kMapOffset)); 35773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 3578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r6, Operand(ip)); 3579014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumber); 35803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&no_deopt); 3581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::TAGGED); 35823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 3583e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (exponent_type.IsInteger32()) { 3584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::INTEGER); 35853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 3586e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 3587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(exponent_type.IsDouble()); 3588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::DOUBLE); 35893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 35903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 35913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35925d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 35935d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 3594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathExp(LMathExp* instr) { 3595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch1 = ToDoubleRegister(instr->double_temp()); 3598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch2 = double_scratch0(); 3599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp1()); 3600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp2()); 36013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathExpGenerator::EmitMathExp( 3603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm(), input, result, double_scratch1, double_scratch2, 3604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch temp1, temp2, scratch0()); 36053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathLog(LMathLog* instr) { 3609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PrepareCallCFunction(0, 1, scratch0()); 3610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovToFloatParameter(ToDoubleRegister(instr->value())); 3611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallCFunction(ExternalReference::math_log_double_function(isolate()), 3612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0, 1); 3613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovFromFloatResult(ToDoubleRegister(instr->result())); 36145d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch} 36155d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 36165d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 3617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathClz32(LMathClz32* instr) { 3618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 3619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ clz(result, input); 3621e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3622e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3623e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { 3625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 3627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasPointerMap()); 3628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSFunction> known_function = instr->hydrogen()->known_function(); 3630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_function.is_null()) { 3631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LPointerMap* pointers = instr->pointer_map(); 3632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 3633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ParameterCount count(instr->arity()); 3634014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ InvokeFunction(r1, no_reg, count, CALL_FUNCTION, generator); 3635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallKnownFunction(known_function, 3637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->formal_parameter_count(), 3638014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->arity(), instr); 3639958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 3640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) { 3644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3646958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (instr->hydrogen()->IsTailCall()) { 3647958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (NeedsEagerFrame()) __ LeaveFrame(StackFrame::INTERNAL); 3648958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3649958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (instr->target()->IsConstantOperand()) { 3650958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier LConstantOperand* target = LConstantOperand::cast(instr->target()); 3651958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Handle<Code> code = Handle<Code>::cast(ToHandle(target)); 3652958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ Jump(code, RelocInfo::CODE_TARGET); 3653958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 3654958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(instr->target()->IsRegister()); 3655958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register target = ToRegister(instr->target()); 3656958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Make sure we don't emit any additional entries in the constant pool 3657958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // before the call to ensure that the CallCodeSize() calculated the 3658958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // correct 3659958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // number of instructions for the constant pool load. 3660958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier { 3661958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier ConstantPoolUnavailableScope constant_pool_unavailable(masm_); 3662958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ add(target, target, Operand(Code::kHeaderSize - kHeapObjectTag)); 3663958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 3664958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ Jump(target); 3665958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 3666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3667958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier LPointerMap* pointers = instr->pointer_map(); 3668958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 3669958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 3670958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier if (instr->target()->IsConstantOperand()) { 3671958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier LConstantOperand* target = LConstantOperand::cast(instr->target()); 3672958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Handle<Code> code = Handle<Code>::cast(ToHandle(target)); 3673958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier generator.BeforeCall(__ CallSize(code, RelocInfo::CODE_TARGET)); 3674958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier PlatformInterfaceDescriptor* call_descriptor = 3675958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier instr->descriptor().platform_specific_descriptor(); 3676014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (call_descriptor != NULL) { 3677014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Call(code, RelocInfo::CODE_TARGET, TypeFeedbackId::None(), al, 3678014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch call_descriptor->storage_mode()); 3679014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 3680014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Call(code, RelocInfo::CODE_TARGET, TypeFeedbackId::None(), al); 3681014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3682958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } else { 3683958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier DCHECK(instr->target()->IsRegister()); 3684958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier Register target = ToRegister(instr->target()); 3685958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier generator.BeforeCall(__ CallSize(target)); 3686958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // Make sure we don't emit any additional entries in the constant pool 3687958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // before the call to ensure that the CallCodeSize() calculated the 3688958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // correct 3689958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier // number of instructions for the constant pool load. 3690958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier { 3691958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier ConstantPoolUnavailableScope constant_pool_unavailable(masm_); 3692958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ add(target, target, Operand(Code::kHeaderSize - kHeapObjectTag)); 3693958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier } 3694958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier __ Call(target); 3695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3696958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier generator.AfterCall(); 3697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3698257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 3699257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3700257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallJSFunction(LCallJSFunction* instr) { 3702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 3703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3704086aeeaae12517475c22695a200be45495516549Ben Murdoch 3705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Change context. 3706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); 3707b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3708014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Always initialize new target and number of actual arguments. 3709014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(r3, Heap::kUndefinedValueRootIndex); 3710014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(r0, Operand(instr->arity())); 3711014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load the code entry address 3713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); 3714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(ip); 3715b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 3717b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallFunction(LCallFunction* instr) { 3721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 3723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 37249fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 37259fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block int arity = instr->arity(); 3726014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ConvertReceiverMode mode = instr->hydrogen()->convert_mode(); 3727014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->HasVectorAndSlot()) { 3728014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register slot_register = ToRegister(instr->temp_slot()); 3729014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register vector_register = ToRegister(instr->temp_vector()); 3730014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(slot_register.is(r3)); 3731014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(vector_register.is(r2)); 3732014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3733014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch AllowDeferredHandleDereference vector_structure_check; 3734014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); 3735014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int index = vector->GetIndex(instr->hydrogen()->slot()); 3736014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3737014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(vector_register, vector); 3738014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(slot_register, Operand(Smi::FromInt(index))); 3739014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3740014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = 3741014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CodeFactory::CallICInOptimizedCode(isolate(), arity, mode).code(); 3742014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 3743014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 3744014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(r0, Operand(arity)); 3745014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(isolate()->builtins()->Call(mode), RelocInfo::CODE_TARGET, instr); 3746014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallNewArray(LCallNewArray* instr) { 3751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->constructor()).is(r1)); 3753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ mov(r0, Operand(instr->arity())); 3756014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->arity() == 1) { 3757014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // We only need the allocation site for the case we have a length argument. 3758014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // The case may bail out to the runtime, which will determine the correct 3759014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // elements kind with the site. 3760014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(r2, instr->hydrogen()->site()); 3761014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 3762014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); 3763014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind kind = instr->hydrogen()->elements_kind(); 3765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationSiteOverrideMode override_mode = 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) 3767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? DISABLE_ALLOCATION_SITES 3768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : DONT_OVERRIDE; 3769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->arity() == 0) { 3771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArrayNoArgumentConstructorStub stub(isolate(), kind, override_mode); 3772014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 3773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->arity() == 1) { 3774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 3775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(kind)) { 3776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label packed_case; 3777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We might need a change here 3778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // look at the first argument 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r5, MemOperand(sp, 0)); 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r5, Operand::Zero()); 3781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &packed_case); 3782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind holey_kind = GetHoleyElementsKind(kind); 3784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArraySingleArgumentConstructorStub stub(isolate(), 3785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch holey_kind, 3786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch override_mode); 3787014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 3788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 3789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&packed_case); 3790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArraySingleArgumentConstructorStub stub(isolate(), kind, override_mode); 3793014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 3795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArrayNArgumentsConstructorStub stub(isolate(), kind, override_mode); 3797014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 3798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3801b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3802b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallRuntime(LCallRuntime* instr) { 3803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallRuntime(instr->function(), instr->arity(), instr); 3804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) { 3808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register function = ToRegister(instr->function()); 3809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register code_object = ToRegister(instr->code_object()); 3810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(code_object, code_object, Operand(Code::kHeaderSize - kHeapObjectTag)); 3811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(code_object, 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(function, JSFunction::kCodeEntryOffset)); 3813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) { 3817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register base = ToRegister(instr->base_object()); 3819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->offset()->IsConstantOperand()) { 3820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* offset = LConstantOperand::cast(instr->offset()); 3821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, base, Operand(ToInteger32(offset))); 3822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register offset = ToRegister(instr->offset()); 3824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, base, offset); 3825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3829b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { 3830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation = instr->representation(); 3831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3832086aeeaae12517475c22695a200be45495516549Ben Murdoch Register object = ToRegister(instr->object()); 3833086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 3834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = instr->hydrogen()->access(); 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = access.offset(); 3836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsExternalMemory()) { 3838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 3839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = MemOperand(object, offset); 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 3841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3843086aeeaae12517475c22695a200be45495516549Ben Murdoch 3844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertNotSmi(object); 3845086aeeaae12517475c22695a200be45495516549Ben Murdoch 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!representation.IsSmi() || 3847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !instr->value()->IsConstantOperand() || 3848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSmi(LConstantOperand::cast(instr->value()))); 3849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation.IsDouble()) { 3850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(access.IsInobject()); 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->has_transition()); 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->NeedsWriteBarrier()); 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, FieldMemOperand(object, offset)); 3855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 3856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->has_transition()) { 3859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> transition = instr->hydrogen()->transition_map(); 3860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDeprecationDependency(transition); 3861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(transition)); 3862086aeeaae12517475c22695a200be45495516549Ben Murdoch __ str(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); 3863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->NeedsWriteBarrierForMap()) { 3864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Update the write barrier for the map field. 3866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteForMap(object, 3867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch temp, 3869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 3870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs); 3871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3872086aeeaae12517475c22695a200be45495516549Ben Murdoch } 3873086aeeaae12517475c22695a200be45495516549Ben Murdoch 3874086aeeaae12517475c22695a200be45495516549Ben Murdoch // Do the store. 3875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 3876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsInobject()) { 3877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(object, offset); 3878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 38793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 3880086aeeaae12517475c22695a200be45495516549Ben Murdoch // Update the write barrier for the object for in-object properties. 38813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteField(object, 38823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch offset, 38833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 38843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch scratch, 3885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 38863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 38873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 3888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->SmiCheckForWriteBarrier(), 3889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 3890086aeeaae12517475c22695a200be45495516549Ben Murdoch } 3891086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 3892086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(scratch, FieldMemOperand(object, JSObject::kPropertiesOffset)); 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(scratch, offset); 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 38953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 3896086aeeaae12517475c22695a200be45495516549Ben Murdoch // Update the write barrier for the properties array. 3897086aeeaae12517475c22695a200be45495516549Ben Murdoch // object is used as a scratch register. 38983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteField(scratch, 38993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch offset, 39003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 39013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch object, 3902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 39033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 39043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 3905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->SmiCheckForWriteBarrier(), 3906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 3907086aeeaae12517475c22695a200be45495516549Ben Murdoch } 3908086aeeaae12517475c22695a200be45495516549Ben Murdoch } 3909b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3910b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3911b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3912b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); 3915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); 3916b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3917014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->HasVectorAndSlot()) { 3918014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitVectorStoreICRegisters<LStoreNamedGeneric>(instr); 3919014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 3920014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 3921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(StoreDescriptor::NameRegister(), Operand(instr->name())); 3922014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = CodeFactory::StoreICInOptimizedCode( 3923014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate(), instr->language_mode(), 3924014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->hydrogen()->initialization_state()).code(); 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 3926b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3927b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3928b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3929b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { 3930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition cc = instr->hydrogen()->allow_equality() ? hi : hs; 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->index()->IsConstantOperand()) { 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand index = ToOperand(instr->index()); 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 3934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(length, index); 3935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cc = CommuteCondition(cc); 3936086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand length = ToOperand(instr->length()); 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(index, length); 3940086aeeaae12517475c22695a200be45495516549Ben Murdoch } 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code && instr->hydrogen()->skip_check()) { 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 3943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(NegateCondition(cc), &done); 3944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("eliminated bounds check failed"); 3945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 39463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 3947014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(cc, instr, Deoptimizer::kOutOfBounds); 39483fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 39493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 39503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 39513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) { 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register external_pointer = ToRegister(instr->elements()); 3954257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register key = no_reg; 3955589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch ElementsKind elements_kind = instr->elements_kind(); 3956257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 3957257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int constant_key = 0; 3958257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (key_is_constant) { 3959257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 3960257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (constant_key & 0xF0000000) { 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 3962257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 3963257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 3964257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch key = ToRegister(instr->key()); 3965257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(elements_kind); 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 3970257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3971014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (elements_kind == FLOAT32_ELEMENTS || elements_kind == FLOAT64_ELEMENTS) { 3972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register address = scratch0(); 39738b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch DwVfpRegister value(ToDoubleRegister(instr->value())); 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key != 0) { 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(address, external_pointer, 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(constant_key << element_size_shift)); 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch address = external_pointer; 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(address, external_pointer, Operand(key, LSL, shift_size)); 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3984014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (elements_kind == FLOAT32_ELEMENTS) { 3985257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ vcvt_f32_f64(double_scratch0().low(), value); 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(double_scratch0().low(), address, base_offset); 3987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { // Storing doubles, not floats. 3988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, address, base_offset); 3989257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 39908b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else { 39918b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register value(ToRegister(instr->value())); 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand mem_operand = PrepareKeyedOperand( 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, external_pointer, key_is_constant, constant_key, 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch element_size_shift, shift_size, 3995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset); 39963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch switch (elements_kind) { 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_ELEMENTS: 3998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_CLAMPED_ELEMENTS: 3999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT8_ELEMENTS: 4000257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ strb(value, mem_operand); 40018b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT16_ELEMENTS: 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT16_ELEMENTS: 4004257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ strh(value, mem_operand); 40058b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT32_ELEMENTS: 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT32_ELEMENTS: 4008257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ str(value, mem_operand); 40098b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT32_ELEMENTS: 4011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT64_ELEMENTS: 4012589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_DOUBLE_ELEMENTS: 4013589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_ELEMENTS: 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_SMI_ELEMENTS: 4015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_DOUBLE_ELEMENTS: 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_ELEMENTS: 4017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_SMI_ELEMENTS: 4018589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case DICTIONARY_ELEMENTS: 4019014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case FAST_SLOPPY_ARGUMENTS_ELEMENTS: 4020014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch case SLOW_SLOPPY_ARGUMENTS_ELEMENTS: 40218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch UNREACHABLE(); 40228b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 40238b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 40248b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 402544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 402644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 402744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) { 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 4030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 4031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 4032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch = double_scratch0(); 4033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 4034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 4035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Calculate the effective address of the slot in the array to store the 4037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // double value. 4038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); 4039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 4040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 4041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key & 0xF0000000) { 4042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 4043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, 4045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand((constant_key << element_size_shift) + base_offset)); 4046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 4048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 4049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(base_offset)); 4050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, scratch, 4051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(ToRegister(instr->key()), LSL, shift_size)); 4052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->NeedsCanonicalization()) { 4055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Force a canonical NaN. 4056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (masm()->emit_debug_code()) { 4057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmrs(ip); 4058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(ip, Operand(kVFPDefaultNaNModeControlBit)); 4059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Assert(ne, kDefaultNaNModeNotSet); 4060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCanonicalizeNaN(double_scratch, value); 4062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(double_scratch, scratch, 0); 4063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, scratch, 0); 4065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) { 4070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 4071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 4072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = instr->key()->IsRegister() ? ToRegister(instr->key()) 4073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : no_reg; 4074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 4075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register store_base = scratch; 4076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = instr->base_offset(); 4077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the store. 4079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->key()->IsConstantOperand()) { 4080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->NeedsWriteBarrier()); 4081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); 4082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset += ToInteger32(const_operand) * kPointerSize; 4083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_base = elements; 4084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Even though the HLoadKeyed instruction forces the input 4086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation for the key to be an integer, the input gets replaced 4087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // during bound check elimination with the index argument to the bounds 4088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check, which can be tagged, so that case must be handled here, too. 4089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->key()->representation().IsSmi()) { 4090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); 4091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); 4093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(value, MemOperand(store_base, offset)); 4096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 4098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = 4099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 4100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 4101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute address of modified element and store it into key register. 4102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(key, store_base, Operand(offset)); 4103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWrite(elements, 4104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, 4105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value, 4106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 4107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs, 4108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 4109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch check_needed, 4110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 4111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyed(LStoreKeyed* instr) { 4116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // By cases: external, fast double 4117014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->is_fixed_typed_array()) { 4118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedExternalArray(instr); 4119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->value()->representation().IsDouble()) { 4120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedFixedDoubleArray(instr); 4121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedFixedArray(instr); 4123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4127b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { 4128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); 4130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister())); 4131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); 4132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4133014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->HasVectorAndSlot()) { 4134014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch EmitVectorStoreICRegisters<LStoreKeyedGeneric>(instr); 4135014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4136014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4137014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Handle<Code> ic = CodeFactory::KeyedStoreICInOptimizedCode( 4138014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch isolate(), instr->language_mode(), 4139014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->hydrogen()->initialization_state()).code(); 4140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 41418b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 41428b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 41438b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 4144014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::DoMaybeGrowElements(LMaybeGrowElements* instr) { 4145014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredMaybeGrowElements final : public LDeferredCode { 4146014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch public: 4147014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeferredMaybeGrowElements(LCodeGen* codegen, LMaybeGrowElements* instr) 4148014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch : LDeferredCode(codegen), instr_(instr) {} 4149014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredMaybeGrowElements(instr_); } 4150014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4151014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4152014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch private: 4153014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LMaybeGrowElements* instr_; 4154014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch }; 4155014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4156014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register result = r0; 4157014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeferredMaybeGrowElements* deferred = 4158014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch new (zone()) DeferredMaybeGrowElements(this, instr); 4159014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LOperand* key = instr->key(); 4160014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LOperand* current_capacity = instr->current_capacity(); 4161014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4162014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(instr->hydrogen()->key()->representation().IsInteger32()); 4163014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(instr->hydrogen()->current_capacity()->representation().IsInteger32()); 4164014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(key->IsConstantOperand() || key->IsRegister()); 4165014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(current_capacity->IsConstantOperand() || 4166014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch current_capacity->IsRegister()); 4167014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4168014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (key->IsConstantOperand() && current_capacity->IsConstantOperand()) { 4169014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_t constant_key = ToInteger32(LConstantOperand::cast(key)); 4170014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_t constant_capacity = 4171014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ToInteger32(LConstantOperand::cast(current_capacity)); 4172014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (constant_key >= constant_capacity) { 4173014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Deferred case. 4174014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ jmp(deferred->entry()); 4175014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4176014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (key->IsConstantOperand()) { 4177014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_t constant_key = ToInteger32(LConstantOperand::cast(key)); 4178014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(ToRegister(current_capacity), Operand(constant_key)); 4179014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(le, deferred->entry()); 4180014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (current_capacity->IsConstantOperand()) { 4181014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch int32_t constant_capacity = 4182014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch ToInteger32(LConstantOperand::cast(current_capacity)); 4183014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(ToRegister(key), Operand(constant_capacity)); 4184014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(ge, deferred->entry()); 4185014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 4186014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(ToRegister(key), ToRegister(current_capacity)); 4187014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(ge, deferred->entry()); 4188014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4189014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4190014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->elements()->IsRegister()) { 4191014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(result, ToRegister(instr->elements())); 4192014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 4193014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, ToMemOperand(instr->elements())); 4194014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4195014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4196014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(deferred->exit()); 4197014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 4198014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4199014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4200014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::DoDeferredMaybeGrowElements(LMaybeGrowElements* instr) { 4201014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // TODO(3095996): Get rid of this. For now, we need to make the 4202014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // result register contain a valid pointer because it is already 4203014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // contained in the register pointer map. 4204014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register result = r0; 4205014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(result, Operand::Zero()); 4206014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4207014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // We have to call a stub. 4208014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch { 4209014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PushSafepointRegistersScope scope(this); 4210014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->object()->IsRegister()) { 4211014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(result, ToRegister(instr->object())); 4212014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 4213014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(result, ToMemOperand(instr->object())); 4214014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4215014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4216014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LOperand* key = instr->key(); 4217014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (key->IsConstantOperand()) { 4218014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(r3, Operand(ToSmi(LConstantOperand::cast(key)))); 4219014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else { 4220014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Move(r3, ToRegister(key)); 4221014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ SmiTag(r3); 4222014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4223014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4224014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch GrowArrayElementsStub stub(isolate(), instr->hydrogen()->is_js_array(), 4225014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->hydrogen()->kind()); 4226014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CallStub(&stub); 4227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch RecordSafepointWithLazyDeopt( 4228014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 4229014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ StoreToSafepointRegisterSlot(result, result); 4230014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } 4231014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4232014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Deopt on smi, which means the elements array changed to dictionary mode. 4233014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ SmiTst(result); 4234014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kSmi); 4235014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 4236014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4237014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 42383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { 42393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object_reg = ToRegister(instr->object()); 42403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 42413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 42423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Handle<Map> from_map = instr->original_map(); 42433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Handle<Map> to_map = instr->transitioned_map(); 4244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = instr->from_kind(); 4245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = instr->to_kind(); 42463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 42473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label not_applicable; 42483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch, FieldMemOperand(object_reg, HeapObject::kMapOffset)); 42493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(scratch, Operand(from_map)); 42503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(ne, ¬_applicable); 4251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) { 4253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register new_map_reg = ToRegister(instr->new_map_temp()); 4254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(new_map_reg, Operand(to_map)); 42553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset)); 42563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Write barrier. 4257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteForMap(object_reg, 4258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_map_reg, 4259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 4260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 4261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs); 42623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 4263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(object_reg.is(r0)); 4265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(r1, to_map); 4267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_js_array = from_map->instance_type() == JS_ARRAY_TYPE; 4268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TransitionElementsKindStub stub(isolate(), from_kind, to_kind, is_js_array); 4269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallStub(&stub); 4270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kLazyDeopt); 42723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 42733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(¬_applicable); 42743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 42753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 42763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { 4278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->object()); 4279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 4280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_memento_found; 4281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found); 4282014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMementoFound); 4283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_memento_found); 4284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4287257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoStringAdd(LStringAdd* instr) { 4288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->left()).is(r1)); 4290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->right()).is(r0)); 4291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddStub stub(isolate(), 4292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->flags(), 4293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->pretenure_flag()); 4294257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 4295257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 4296257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4297257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 42981e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { 4299014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredStringCharCodeAt final : public LDeferredCode { 43001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block public: 43011e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) 43021e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block : LDeferredCode(codegen), instr_(instr) { } 4303014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredStringCharCodeAt(instr_); } 4304014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4305958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 43061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block private: 43071e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LStringCharCodeAt* instr_; 43081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block }; 43091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredStringCharCodeAt* deferred = 4311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStringCharCodeAt(this, instr); 43121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch StringCharLoadGenerator::Generate(masm(), 43143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->string()), 43153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->index()), 43163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->result()), 43173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch deferred->entry()); 43181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(deferred->exit()); 43191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 43201e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43211e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43221e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { 43231e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register string = ToRegister(instr->string()); 43241e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 43251e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch = scratch0(); 43261e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43271e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // TODO(3095996): Get rid of this. For now, we need to make the 43281e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // result register contain a valid pointer because it is already 43291e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // contained in the register pointer map. 4330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 43311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 4332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 43331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(string); 43341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Push the index as a smi. This is safe because of the checks in 43351e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // DoStringCharCodeAt above. 43361e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (instr->index()->IsConstantOperand()) { 43371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 43381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ mov(scratch, Operand(Smi::FromInt(const_index))); 43391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(scratch); 43401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 43411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register index = ToRegister(instr->index()); 43421e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ SmiTag(index); 43431e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(index); 43441e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 4345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred(Runtime::kStringCharCodeAtRT, 2, instr, 4346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->context()); 4347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertSmi(r0); 43481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ SmiUntag(r0); 4349e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 43501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 43511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 43521e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 435344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { 4354014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredStringCharFromCode final : public LDeferredCode { 435544f0eee88ff00398ff7f715fab053374d808c90dSteve Block public: 435644f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) 435744f0eee88ff00398ff7f715fab053374d808c90dSteve Block : LDeferredCode(codegen), instr_(instr) { } 4358014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 4359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredStringCharFromCode(instr_); 4360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4361014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4362958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 436344f0eee88ff00398ff7f715fab053374d808c90dSteve Block private: 436444f0eee88ff00398ff7f715fab053374d808c90dSteve Block LStringCharFromCode* instr_; 436544f0eee88ff00398ff7f715fab053374d808c90dSteve Block }; 436644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 436744f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeferredStringCharFromCode* deferred = 4368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStringCharFromCode(this, instr); 436944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->value()->representation().IsInteger32()); 437144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register char_code = ToRegister(instr->char_code()); 437244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result = ToRegister(instr->result()); 4373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!char_code.is(result)); 437444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(char_code, Operand(String::kMaxOneByteCharCode)); 437644f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(hi, deferred->entry()); 437744f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ LoadRoot(result, Heap::kSingleCharacterStringCacheRootIndex); 437844f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ add(result, result, Operand(char_code, LSL, kPointerSizeLog2)); 437944f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ ldr(result, FieldMemOperand(result, FixedArray::kHeaderSize)); 438044f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 438144f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ cmp(result, ip); 438244f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(eq, deferred->entry()); 438344f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ bind(deferred->exit()); 438444f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 438544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 438644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 438744f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { 438844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register char_code = ToRegister(instr->char_code()); 438944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result = ToRegister(instr->result()); 439044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 439144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // TODO(3095996): Get rid of this. For now, we need to make the 439244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // result register contain a valid pointer because it is already 439344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // contained in the register pointer map. 4394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 439544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 439744f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ SmiTag(char_code); 439844f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ push(char_code); 4399014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallRuntimeFromDeferred(Runtime::kStringCharFromCode, 1, instr, 4400014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch instr->context()); 440144f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ StoreToSafepointRegisterSlot(r0, result); 440244f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 440344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 440444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4405b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { 4406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister() || input->IsStackSlot()); 4408b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch LOperand* output = instr->result(); 4409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(output->IsDoubleRegister()); 4410b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch SwVfpRegister single_scratch = double_scratch0().low(); 4411b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch if (input->IsStackSlot()) { 4412b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register scratch = scratch0(); 4413b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(scratch, ToMemOperand(input)); 4414b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vmov(single_scratch, scratch); 4415b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 4416b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vmov(single_scratch, ToRegister(input)); 4417b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 4418b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vcvt_f64_s32(ToDoubleRegister(output), single_scratch); 4419b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4420b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4421b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoUint32ToDouble(LUint32ToDouble* instr) { 4423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* output = instr->result(); 4425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SwVfpRegister flt_scratch = double_scratch0().low(); 4427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(flt_scratch, ToRegister(input)); 4428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_u32(ToDoubleRegister(output), flt_scratch); 4429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberTagI(LNumberTagI* instr) { 4433014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredNumberTagI final : public LDeferredCode { 4434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch public: 4435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) 4436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 4437014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 4438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredNumberTagIU(instr_, 4439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->value(), 4440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp1(), 4441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp2(), 4442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIGNED_INT32); 4443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4444014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4445958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 4446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch private: 4447b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LNumberTagI* instr_; 4448b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch }; 4449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register src = ToRegister(instr->value()); 44513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register dst = ToRegister(instr->result()); 4452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); 44543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiTag(dst, src, SetCC); 4455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(vs, deferred->entry()); 4456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(deferred->exit()); 4457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoNumberTagU(LNumberTagU* instr) { 4461014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredNumberTagU final : public LDeferredCode { 4462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 4463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagU(LCodeGen* codegen, LNumberTagU* instr) 4464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 4465014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 4466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredNumberTagIU(instr_, 4467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->value(), 4468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp1(), 4469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp2(), 4470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNSIGNED_INT32); 4471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4472014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4473958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 4474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 4475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LNumberTagU* instr_; 4476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 4477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 4479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 4480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagU* deferred = new(zone()) DeferredNumberTagU(this, instr); 4482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input, Operand(Smi::kMaxValue)); 4483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(hi, deferred->entry()); 4484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, input); 4485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 4486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredNumberTagIU(LInstruction* instr, 4490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* value, 4491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* temp1, 4492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* temp2, 4493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IntegerSignedness signedness) { 4494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, slow; 4495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register src = ToRegister(value); 4496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dst = ToRegister(instr->result()); 4497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp1 = scratch0(); 4498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp2 = ToRegister(temp1); 4499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp3 = ToRegister(temp2); 4500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister dbl_scratch = double_scratch0(); 4501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (signedness == SIGNED_INT32) { 4503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // There was overflow, so bits 30 and 31 of the original integer 4504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // disagree. Try to allocate a heap number in new space and store 4505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the value in there. If that fails, call the runtime system. 4506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dst.is(src)) { 4507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(src, dst); 4508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(src, src, Operand(0x80000000)); 4509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(dbl_scratch.low(), src); 4511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(dbl_scratch, dbl_scratch.low()); 4512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(dbl_scratch.low(), src); 4514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_u32(dbl_scratch, dbl_scratch.low()); 45153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4517b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_inline_new) { 4518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(tmp3, Heap::kHeapNumberMapRootIndex); 4519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AllocateHeapNumber(dst, tmp1, tmp2, tmp3, &slow, DONT_TAG_RESULT); 4520b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(&done); 4521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4522b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4523b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Slow case: Call the runtime system to do the number allocation. 4524b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&slow); 4525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 4526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(3095996): Put a valid pointer value in the stack slot where the 4527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // result register is stored, as this register is in the pointer map, but 4528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // contains an integer value. 4529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(dst, Operand::Zero()); 4530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Preserve the value of all registers. 4532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NumberTagI and NumberTagD use the context from the frame, rather than 4535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the environment's HContext or HInlinedContext value. 4536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // They only call Runtime::kAllocateHeapNumber. 4537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The corresponding HChange instructions are added in a phase that does 4538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // not have easy access to the local context. 4539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kHeapObjectTag)); 4544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, dst); 4545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4546b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4547b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Done. Put the value in dbl_scratch into the value of the allocated heap 4548b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // number. 4549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(dbl_scratch, dst, HeapNumber::kValueOffset); 4551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(dst, dst, Operand(kHeapObjectTag)); 4552b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4553b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4554b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4555b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberTagD(LNumberTagD* instr) { 4556014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredNumberTagD final : public LDeferredCode { 4557b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch public: 4558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) 4559b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 4560014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredNumberTagD(instr_); } 4561014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4562958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 4563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch private: 4564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LNumberTagD* instr_; 4565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch }; 4566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->value()); 45689fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 4569b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(instr->result()); 4570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 4571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp2()); 4572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); 4574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_inline_new) { 4575b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ LoadRoot(scratch, Heap::kHeapNumberMapRootIndex); 4576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We want the untagged address first for performance 4577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AllocateHeapNumber(reg, temp1, temp2, scratch, deferred->entry(), 4578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DONT_TAG_RESULT); 4579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 4580b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ jmp(deferred->entry()); 4581b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4582b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(deferred->exit()); 4583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(input_reg, reg, HeapNumber::kValueOffset); 4584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Now that we have finished with the object's real address tag it 4585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(reg, reg, Operand(kHeapObjectTag)); 4586b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4587b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4588b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4589b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { 4590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // TODO(3095996): Get rid of this. For now, we need to make the 4591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // result register contain a valid pointer because it is already 4592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // contained in the register pointer map. 4593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(instr->result()); 4594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(reg, Operand::Zero()); 4595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NumberTagI and NumberTagD use the context from the frame, rather than 4598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the environment's HContext or HInlinedContext value. 4599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // They only call Runtime::kAllocateHeapNumber. 4600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The corresponding HChange instructions are added in a phase that does 4601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // not have easy access to the local context. 4602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kHeapObjectTag)); 4607e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ StoreToSafepointRegisterSlot(r0, reg); 4608b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4609b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4610b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4611b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSmiTag(LSmiTag* instr) { 4612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HChange* hchange = instr->hydrogen(); 4613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 4614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register output = ToRegister(instr->result()); 4615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hchange->CheckFlag(HValue::kCanOverflow) && 4616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch hchange->value()->CheckFlag(HValue::kUint32)) { 4617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(input, Operand(0xc0000000)); 4618014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kOverflow); 4619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hchange->CheckFlag(HValue::kCanOverflow) && 4621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hchange->value()->CheckFlag(HValue::kUint32)) { 4622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(output, input, SetCC); 4623014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 4624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(output, input); 4626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSmiUntag(LSmiUntag* instr) { 4631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 46323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 4633086aeeaae12517475c22695a200be45495516549Ben Murdoch if (instr->needs_check()) { 463469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 4635257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the input is a HeapObject, SmiUntag will set the carry flag. 46363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiUntag(result, input, SetCC); 4637014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(cs, instr, Deoptimizer::kNotASmi); 4638257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 46393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiUntag(result, input); 4640086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4643b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitNumberUntagD(LNumberUntagD* instr, Register input_reg, 4645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg, 4646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NumberUntagDMode mode) { 4647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_convert_undefined_to_nan = 4648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->can_convert_undefined_to_nan(); 4649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool deoptimize_on_minus_zero = instr->hydrogen()->deoptimize_on_minus_zero(); 4650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 46519fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 46523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SwVfpRegister flt_scratch = double_scratch0().low(); 4653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result_reg.is(double_scratch0())); 4654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label convert, load_smi, done; 4655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED) { 4656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi check. 4657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ UntagAndJumpIfSmi(scratch, input_reg, &load_smi); 4658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Heap number map check. 4659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); 4660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 4661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(ip)); 4662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_convert_undefined_to_nan) { 4663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &convert); 4664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4665014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumber); 4666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // load heap number 4668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result_reg, input_reg, HeapNumber::kValueOffset - kHeapObjectTag); 4669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (deoptimize_on_minus_zero) { 4670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(scratch, result_reg); 4671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand::Zero()); 4672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 4673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, result_reg); 4674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(HeapNumber::kSignMask)); 4675014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kMinusZero); 4676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 46777d3e7fc4b65010eabe860313ee0c64f50843f6e3Ben Murdoch __ jmp(&done); 4678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_convert_undefined_to_nan) { 4679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert); 4680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert undefined (and hole) to NaN. 4681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 4682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, Operand(ip)); 4683014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumberUndefined); 4684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch, Heap::kNanValueRootIndex); 4685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result_reg, scratch, HeapNumber::kValueOffset - kHeapObjectTag); 4686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 4687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(scratch, input_reg); 4690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(mode == NUMBER_CANDIDATE_IS_SMI); 46913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4692b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Smi to double register conversion 4693b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&load_smi); 46943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // scratch: untagged value of input_reg 46953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ vmov(flt_scratch, scratch); 4696b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vcvt_f64_s32(result_reg, flt_scratch); 4697b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4698b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4699b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4700b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4701b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr) { 4702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = ToRegister(instr->value()); 470344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register scratch1 = scratch0(); 4704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = ToRegister(instr->temp()); 4705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 4706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch2 = ToDoubleRegister(instr->temp2()); 470744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch1.is(input_reg) && !scratch1.is(scratch2)); 4709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch2.is(input_reg) && !scratch2.is(scratch1)); 471044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 471144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label done; 4712b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4713257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The input was optimistically untagged; revert it. 4714257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The carry flag is set when we reach this deferred code as we just executed 4715257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // SmiUntag(heap_object, SetCC) 471669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 4717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ adc(scratch2, input_reg, Operand(input_reg)); 4718257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Heap number map check. 4720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch1, FieldMemOperand(scratch2, HeapObject::kMapOffset)); 4721b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 472244f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ cmp(scratch1, Operand(ip)); 4723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->truncating()) { 472544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Performs a truncating conversion of a floating point number as used by 472644f0eee88ff00398ff7f715fab053374d808c90dSteve Block // the JS bitwise operations. 4727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_heap_number, check_bools, check_false; 4728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_heap_number); 4729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateHeapNumberToI(input_reg, scratch2); 4730b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(&done); 4731b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for Oddballs. Undefined/False is converted to zero and True to one 4733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // for truncating conversions. 4734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_heap_number); 4735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 4736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &check_bools); 4738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand::Zero()); 4739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 474044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_bools); 4742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kTrueValueRootIndex); 4743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &check_false); 4745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand(1)); 4746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 4747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_false); 4749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kFalseValueRootIndex); 4750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4751014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumberUndefinedBoolean); 4752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand::Zero()); 4753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 4754014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumber); 4755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(ip, scratch2, Operand(kHeapObjectTag)); 4757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(double_scratch2, ip, HeapNumber::kValueOffset); 4758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(input_reg, double_scratch2, double_scratch); 4759014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecisionOrNaN); 476044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 4762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, Operand::Zero()); 4763b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(ne, &done); 4764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_scratch2); 476544f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ tst(scratch1, Operand(HeapNumber::kSignMask)); 4766014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kMinusZero); 4767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTaggedToI(LTaggedToI* instr) { 4774014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredTaggedToI final : public LDeferredCode { 47753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 47763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) 47773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 4778014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredTaggedToI(instr_); } 4779014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4780958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 47813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 47823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LTaggedToI* instr_; 47833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch }; 47843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 4787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->Equals(instr->result())); 4788b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input_reg = ToRegister(input); 4790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->value()->representation().IsSmi()) { 4792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(input_reg); 4793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); 4795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimistically untag the input. 4797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the input is a HeapObject, SmiUntag will set the carry flag. 4798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(input_reg, SetCC); 4799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Branch to deferred code if the input was tagged. 4800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The deferred code will take care of restoring the tag. 4801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(cs, deferred->entry()); 4802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 4803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4807b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { 4808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 4810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* result = instr->result(); 4811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(result->IsDoubleRegister()); 4812b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input_reg = ToRegister(input); 4814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(result); 4815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = instr->hydrogen()->value(); 4817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NumberUntagDMode mode = value->representation().IsSmi() 4818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? NUMBER_CANDIDATE_IS_SMI : NUMBER_CANDIDATE_IS_ANY_TAGGED; 4819b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitNumberUntagD(instr, input_reg, result_reg, mode); 4821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4823b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDoubleToI(LDoubleToI* instr) { 482544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result_reg = ToRegister(instr->result()); 48261e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch1 = scratch0(); 4827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_input = ToDoubleRegister(instr->value()); 4828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 48291e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 4830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->truncating()) { 4831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateDoubleToI(result_reg, double_input); 4832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); 4834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if the input wasn't a int32 (inside a double). 4835014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecisionOrNaN); 4836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 4837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 4838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 4839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 4840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_input); 4841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch1, Operand(HeapNumber::kSignMask)); 4842014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kMinusZero); 4843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 4844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) { 4850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 4851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch1 = scratch0(); 4852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_input = ToDoubleRegister(instr->value()); 4853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 48541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 485544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (instr->truncating()) { 4856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateDoubleToI(result_reg, double_input); 485744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 4858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); 4859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if the input wasn't a int32 (inside a double). 4860014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kLostPrecisionOrNaN); 4861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 4862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 4863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 4864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 4865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_input); 4866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch1, Operand(HeapNumber::kSignMask)); 4867014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kMinusZero); 4868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 4869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 48701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 4871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result_reg, SetCC); 4872014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(vs, instr, Deoptimizer::kOverflow); 4873b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4874b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4875b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4876b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCheckSmi(LCheckSmi* instr) { 4877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(ToRegister(input)); 4879014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotASmi); 488044f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 488144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 488244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 488344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { 4884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 4885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(ToRegister(input)); 4887014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kSmi); 4888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4889b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4890b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4891b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4892014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdochvoid LCodeGen::DoCheckArrayBufferNotNeutered( 4893014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LCheckArrayBufferNotNeutered* instr) { 4894014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register view = ToRegister(instr->view()); 4895014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register scratch = scratch0(); 4896014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4897014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset)); 4898014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset)); 4899014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ tst(scratch, Operand(1 << JSArrayBuffer::WasNeutered::kShift)); 4900014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds); 4901014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} 4902014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4903014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 4904b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { 4905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 4906086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 4907086aeeaae12517475c22695a200be45495516549Ben Murdoch 4908086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 4909086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); 4910086aeeaae12517475c22695a200be45495516549Ben Murdoch 4911257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (instr->hydrogen()->is_interval_check()) { 4912257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType first; 4913257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType last; 4914257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch instr->hydrogen()->GetCheckInterval(&first, &last); 4915257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4916257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(first)); 4917257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4918257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If there is only one type in the interval check for equality. 4919257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (first == last) { 4920014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kWrongInstanceType); 4921257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 4922014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(lo, instr, Deoptimizer::kWrongInstanceType); 4923257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Omit check for the last type. 4924257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (last != LAST_TYPE) { 4925257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(last)); 4926014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(hi, instr, Deoptimizer::kWrongInstanceType); 4927257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 4928257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 4929086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 4930257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch uint8_t mask; 4931257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch uint8_t tag; 4932257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); 4933257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base::bits::IsPowerOfTwo32(mask)) { 4935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(tag == 0 || base::bits::IsPowerOfTwo32(tag)); 4936257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ tst(scratch, Operand(mask)); 4937014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(tag == 0 ? ne : eq, instr, Deoptimizer::kWrongInstanceType); 4938257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 4939257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ and_(scratch, scratch, Operand(mask)); 4940257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(tag)); 4941014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kWrongInstanceType); 4942086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4943086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4945b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4946b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCheckValue(LCheckValue* instr) { 49483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register reg = ToRegister(instr->value()); 4949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> object = instr->hydrogen()->object().handle(); 4950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllowDeferredHandleDereference smi_check; 4951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate()->heap()->InNewSpace(*object)) { 49523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register reg = ToRegister(instr->value()); 4953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Cell> cell = isolate()->factory()->NewCell(object); 4954014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(ip, Operand(cell)); 4955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(ip, Cell::kValueOffset)); 49563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(reg, ip); 49573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 4958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand(object)); 49593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4960014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kValueMismatch); 4961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4962b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) { 4965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 4966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(object); 4968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, Operand::Zero()); 4969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kTryMigrateInstance); 4970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 1, Safepoint::kNoLazyDeopt); 4972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, scratch0()); 4973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch0(), Operand(kSmiTagMask)); 4975014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kInstanceMigrationFailed); 49763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 49773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 49783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCheckMaps(LCheckMaps* instr) { 4980014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredCheckMaps final : public LDeferredCode { 4981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 4982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredCheckMaps(LCodeGen* codegen, LCheckMaps* instr, Register object) 4983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), instr_(instr), object_(object) { 4984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetExit(check_maps()); 4985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4986014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 4987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredInstanceMigration(instr_, object_); 4988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* check_maps() { return &check_maps_; } 4990014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 4991958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 4992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 4993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LCheckMaps* instr_; 4994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label check_maps_; 4995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object_; 4996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 4997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->IsStabilityCheck()) { 4999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const UniqueSet<Map>* maps = instr->hydrogen()->maps(); 5000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps->size(); ++i) { 5001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddStabilityDependency(maps->at(i).handle()); 5002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 5004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register map_reg = scratch0(); 5007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 5010b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(input); 5011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); 5013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredCheckMaps* deferred = NULL; 5015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->HasMigrationTarget()) { 5016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deferred = new(zone()) DeferredCheckMaps(this, instr, reg); 5017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->check_maps()); 5018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const UniqueSet<Map>* maps = instr->hydrogen()->maps(); 5021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label success; 5022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps->size() - 1; i++) { 5023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map = maps->at(i).handle(); 5024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareMap(map_reg, map, &success); 5025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &success); 5026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map = maps->at(maps->size() - 1).handle(); 5029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareMap(map_reg, map, &success); 5030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->HasMigrationTarget()) { 5031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, deferred->entry()); 5032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5033014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kWrongMap); 5034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&success); 5037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5039b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5040257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { 5041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value_reg = ToDoubleRegister(instr->unclamped()); 5042257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ClampDoubleToUint8(result_reg, value_reg, double_scratch0()); 5044257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5045257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5046257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5047257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { 5048257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register unclamped_reg = ToRegister(instr->unclamped()); 5049257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5050257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ClampUint8(result_reg, unclamped_reg); 5051257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5052257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5053257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5054257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { 5055257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register scratch = scratch0(); 5056257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register input_reg = ToRegister(instr->unclamped()); 5057257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister temp_reg = ToDoubleRegister(instr->temp()); 5059257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Label is_smi, done, heap_number; 5060257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5061257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Both smi and heap number cases are handled. 50623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ UntagAndJumpIfSmi(result_reg, input_reg, &is_smi); 5063257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5064257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check for heap number 5065257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); 5066257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(factory()->heap_number_map())); 5067257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ b(eq, &heap_number); 5068257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5069257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check for undefined. Undefined is converted to zero for clamping 5070257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // conversions. 5071257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(input_reg, Operand(factory()->undefined_value())); 5072014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kNotAHeapNumberUndefined); 5073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, Operand::Zero()); 5074257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ jmp(&done); 5075257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5076257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Heap number 5077257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&heap_number); 5078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(temp_reg, FieldMemOperand(input_reg, HeapNumber::kValueOffset)); 5079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ClampDoubleToUint8(result_reg, temp_reg, double_scratch0()); 5080257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ jmp(&done); 5081257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5082257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // smi 5083257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&is_smi); 5084257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ClampUint8(result_reg, result_reg); 5085257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5086257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&done); 5087257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5088257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5089257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDoubleBits(LDoubleBits* instr) { 5091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value_reg = ToDoubleRegister(instr->value()); 5092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 5093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->bits() == HDoubleBits::HIGH) { 5094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(result_reg, value_reg); 5095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(result_reg, value_reg); 50979fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 5098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 50999fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 5100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstructDouble(LConstructDouble* instr) { 5102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register hi_reg = ToRegister(instr->hi()); 5103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register lo_reg = ToRegister(instr->lo()); 5104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(instr->result()); 5105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(result_reg, hi_reg); 5106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(result_reg, lo_reg); 5107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5108b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5109b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoAllocate(LAllocate* instr) { 5111014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredAllocate final : public LDeferredCode { 51123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 5113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredAllocate(LCodeGen* codegen, LAllocate* instr) 51143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 5115014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredAllocate(instr_); } 5116014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 5117958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 51183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 5119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LAllocate* instr_; 51203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch }; 51213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredAllocate* deferred = 5123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredAllocate(this, instr); 51243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 51253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 5126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = ToRegister(instr->temp1()); 5127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = ToRegister(instr->temp2()); 5128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Allocate memory for the object. 5130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationFlags flags = TAG_OBJECT; 5131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->MustAllocateDoubleAligned()) { 5132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); 5133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5134014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->IsOldSpaceAllocation()) { 5135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5136014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch flags = static_cast<AllocationFlags>(flags | PRETENURE); 5137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsConstantOperand()) { 5140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5141014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CHECK(size <= Page::kMaxRegularHeapObjectSize); 5142014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); 5143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register size = ToRegister(instr->size()); 5145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); 51463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 51473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 51483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(deferred->exit()); 5149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->MustPrefillWithFiller()) { 5151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 5152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsConstantOperand()) { 5153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(size - kHeapObjectTag)); 5155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, ToRegister(instr->size()), Operand(kHeapObjectTag)); 5157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch2, Operand(isolate()->factory()->one_pointer_filler_map())); 5159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label loop; 5160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&loop); 5161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, scratch, Operand(kPointerSize), SetCC); 5162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(scratch2, MemOperand(result, scratch)); 5163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ge, &loop); 5164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 51653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 51663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 51673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredAllocate(LAllocate* instr) { 51693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 51703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 51713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // TODO(3095996): Get rid of this. For now, we need to make the 51723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // result register contain a valid pointer because it is already 51733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // contained in the register pointer map. 5174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(Smi::FromInt(0))); 5175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsRegister()) { 5178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register size = ToRegister(instr->size()); 5179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!size.is(result)); 5180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(size); 5181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(size); 51829fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } else { 5183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (size >= 0 && size <= Smi::kMaxValue) { 5185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(Smi::FromInt(size)); 51863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 5187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We should never get here at runtime => abort 5188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("invalid allocation size"); 5189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 51903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 51913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 51923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int flags = AllocateDoubleAlignFlag::encode( 5194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->MustAllocateDoubleAligned()); 5195014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (instr->hydrogen()->IsOldSpaceAllocation()) { 5196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5197014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch flags = AllocateTargetSpace::update(flags, OLD_SPACE); 51983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 5199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = AllocateTargetSpace::update(flags, NEW_SPACE); 52009fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 5201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(Smi::FromInt(flags)); 5202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred( 5204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); 5205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 5206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5208b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 520944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoToFastProperties(LToFastProperties* instr) { 5210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(r0)); 521144f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ push(r0); 521244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CallRuntime(Runtime::kToFastProperties, 1, instr); 521344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 521444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 521544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 5216b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTypeof(LTypeof* instr) { 5217014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->value()).is(r3)); 5218014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 5219014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Label end, do_call; 5220014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register value_register = ToRegister(instr->value()); 5221014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ JumpIfNotSmi(value_register, &do_call); 5222014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ mov(r0, Operand(isolate()->factory()->number_string())); 5223014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ jmp(&end); 5224014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&do_call); 5225014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch TypeofStub stub(isolate()); 5226014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 5227014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ bind(&end); 5228b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5229b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5231b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { 5232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 5233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition final_branch_condition = EmitTypeofIs(instr->TrueLabel(chunk_), 5235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->FalseLabel(chunk_), 5236b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch input, 5237b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch instr->type_literal()); 52383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (final_branch_condition != kNoCondition) { 5239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, final_branch_condition); 52403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5241b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5242b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5243b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5244b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochCondition LCodeGen::EmitTypeofIs(Label* true_label, 5245b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* false_label, 5246b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input, 5247b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<String> type_name) { 52481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition final_branch_condition = kNoCondition; 52499fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 5250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Factory* factory = isolate()->factory(); 5251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (String::Equals(type_name, factory->number_string())) { 5252e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, true_label); 5253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareRoot(scratch, Heap::kHeapNumberMapRootIndex); 5255b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = eq; 5256b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->string_string())) { 5258e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareObjectType(input, scratch, no_reg, FIRST_NONSTRING_TYPE); 5260014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch final_branch_condition = lt; 5261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->symbol_string())) { 5263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, false_label); 5264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareObjectType(input, scratch, no_reg, SYMBOL_TYPE); 5265e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch final_branch_condition = eq; 5266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->boolean_string())) { 5268e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kTrueValueRootIndex); 5269b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(eq, true_label); 5270e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kFalseValueRootIndex); 5271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = eq; 5272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->undefined_string())) { 5274e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kUndefinedValueRootIndex); 5275b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(eq, true_label); 5276e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5277b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Check for undetectable objects => true. 5278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitFieldOffset)); 5280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << Map::kIsUndetectable)); 5281b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = ne; 5282b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->function_string())) { 5284e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5285014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5286014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitFieldOffset)); 5287014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ and_(scratch, scratch, 5288014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Operand((1 << Map::kIsCallable) | (1 << Map::kIsUndetectable))); 5289014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ cmp(scratch, Operand(1 << Map::kIsCallable)); 52903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch final_branch_condition = eq; 5291b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->object_string())) { 5293e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareRoot(input, Heap::kNullValueRootIndex); 5295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, true_label); 5296014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch STATIC_ASSERT(LAST_JS_RECEIVER_TYPE == LAST_TYPE); 5297014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareObjectType(input, scratch, ip, FIRST_JS_RECEIVER_TYPE); 5298014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ b(lt, false_label); 5299014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // Check for callable or undetectable objects => false. 5300014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitFieldOffset)); 5301014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ tst(scratch, 5302014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Operand((1 << Map::kIsCallable) | (1 << Map::kIsUndetectable))); 5303e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch final_branch_condition = eq; 5304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5305014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch// clang-format off 5306014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \ 5307014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch } else if (String::Equals(type_name, factory->type##_string())) { \ 5308014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ JumpIfSmi(input, false_label); \ 5309014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); \ 5310014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareRoot(scratch, Heap::k##Type##MapRootIndex); \ 5311014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch final_branch_condition = eq; 5312014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch SIMD128_TYPES(SIMD128_TYPE) 5313014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch#undef SIMD128_TYPE 5314014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch // clang-format on 5315014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch 5316b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 5317b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(false_label); 5318b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 5319b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5320b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return final_branch_condition; 5321b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5322b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5323b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { 5325014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch if (info()->ShouldEnsureSpaceForLazyDeopt()) { 5326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ensure that we have enough space after the previous lazy-bailout 5327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction for patching the code here. 5328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int current_pc = masm()->pc_offset(); 5329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_pc < last_lazy_deopt_pc_ + space_needed) { 5330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission for duration of padding. 5331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 5332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; 5333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(0, padding_size % Assembler::kInstrSize); 5334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (padding_size > 0) { 5335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); 5336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch padding_size -= Assembler::kInstrSize; 5337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 53382b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 53392b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 53402b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch last_lazy_deopt_pc_ = masm()->pc_offset(); 53412b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch} 53422b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 53432b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 5344b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLazyBailout(LLazyBailout* instr) { 5345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch last_lazy_deopt_pc_ = masm()->pc_offset(); 5346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 53472b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 53482b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); 53492b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 5350b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5351b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5352b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5353b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeoptimize(LDeoptimize* instr) { 5354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType type = instr->hydrogen()->type(); 5355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(danno): Stubs expect all deopts to be lazy for historical reasons (the 5356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // needed return address), even though the implementation of LAZY and EAGER is 5357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // now identical. When LAZY is eventually completely folded into EAGER, remove 5358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the special case below. 5359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsStub() && type == Deoptimizer::EAGER) { 5360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type = Deoptimizer::LAZY; 5361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr, instr->hydrogen()->reason(), type); 5364b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5365b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5366b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDummy(LDummy* instr) { 5368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Nothing to see here, move on! 5369257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5370257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5371257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDummyUse(LDummyUse* instr) { 5373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Nothing to see here, move on! 5374b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5375b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5376b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 53773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { 5378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadContextFromDeferred(instr->context()); 53802b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kStackGuard); 53812b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt( 53822b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 5383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 53842b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 53852b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 53863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 53873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 53883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 5389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStackCheck(LStackCheck* instr) { 5390014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredStackCheck final : public LDeferredCode { 53913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch public: 53923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) 53933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 5394014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { codegen()->DoDeferredStackCheck(instr_); } 5395014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 5396958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 53973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch private: 53983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LStackCheck* instr_; 53993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch }; 54003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 5401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 54022b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 54032b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // There is no LLazyBailout instruction for stack-checks. We have to 54042b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // prepare for lazy deoptimization explicitly here. 54053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (instr->hydrogen()->is_function_entry()) { 54063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Perform stack overflow check. 54073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Label done; 54083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ LoadRoot(ip, Heap::kStackLimitRootIndex); 54093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(sp, Operand(ip)); 54103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ b(hs, &done); 5411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> stack_check = isolate()->builtins()->StackCheck(); 5412014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch PredictableCodeSizeScope predictable(masm()); 5413014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch predictable.ExpectSize(CallCodeSize(stack_check, RelocInfo::CODE_TARGET)); 5414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->context()->IsRegister()); 5415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 5416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stack_check, RelocInfo::CODE_TARGET, instr); 54173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(&done); 54183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 5419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->is_backwards_branch()); 54203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Perform stack overflow check if this goto needs it before jumping. 54213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DeferredStackCheck* deferred_stack_check = 5422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStackCheck(this, instr); 54233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ LoadRoot(ip, Heap::kStackLimitRootIndex); 54243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(sp, Operand(ip)); 54253fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ b(lo, deferred_stack_check->entry()); 5426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); 54273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(instr->done_label()); 54283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch deferred_stack_check->SetExit(instr->done_label()); 54292b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); 54302b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // Don't record a deoptimization index for the safepoint here. 54312b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // This will be done explicitly when emitting call and the safepoint in 54322b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // the deferred code. 54333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 5434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoOsrEntry(LOsrEntry* instr) { 54381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // This is a pseudo-instruction that ensures that the environment here is 54391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // properly registered for deoptimization and records the assembler's PC 54401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // offset. 54411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LEnvironment* environment = instr->environment(); 54421e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 54431e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // If the environment were already registered, we would have no way of 54441e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // backpatching it with the spill slot operands. 5445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!environment->HasBeenRegistered()); 54462b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); 5447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateOsrPrologue(); 5449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 54523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) { 5453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(r0); 5454014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kSmi); 54553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5456014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch STATIC_ASSERT(JS_PROXY_TYPE == FIRST_JS_RECEIVER_TYPE); 5457014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ CompareObjectType(r0, r1, r1, JS_PROXY_TYPE); 5458014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(le, instr, Deoptimizer::kWrongInstanceType); 54593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label use_cache, call_runtime; 5461014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch Register null_value = r5; 5462014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch __ LoadRoot(null_value, Heap::kNullValueRootIndex); 54633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CheckEnumCache(null_value, &call_runtime); 54643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset)); 54663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&use_cache); 54673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Get the set of properties to enumerate. 54693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&call_runtime); 54703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(r0); 5471014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallRuntime(Runtime::kGetPropertyNamesFast, instr); 54723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset)); 54743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kMetaMapRootIndex); 54753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(r1, ip); 5476014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kWrongMap); 54773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&use_cache); 54783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 54793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 54813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { 54823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register map = ToRegister(instr->map()); 54833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 5484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label load_cache, done; 5485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EnumLength(result, map); 5486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(Smi::FromInt(0))); 5487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &load_cache); 5488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(isolate()->factory()->empty_fixed_array())); 5489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 5490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&load_cache); 54923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadInstanceDescriptors(map, result); 54933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, 5494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(result, DescriptorArray::kEnumCacheOffset)); 54953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, 54963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FieldMemOperand(result, FixedArray::SizeFor(instr->idx()))); 5497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 5498014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(eq, instr, Deoptimizer::kNoCache); 5499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 55013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 55023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoCheckMapValue(LCheckMapValue* instr) { 55053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object = ToRegister(instr->value()); 55063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register map = ToRegister(instr->map()); 55073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch0(), FieldMemOperand(object, HeapObject::kMapOffset)); 55083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(map, scratch0()); 5509014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DeoptimizeIf(ne, instr, Deoptimizer::kWrongMap); 5510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredLoadMutableDouble(LLoadFieldByIndex* instr, 5514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result, 5515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object, 5516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index) { 5517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(object); 5519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(index); 5520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, Operand::Zero()); 5521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kLoadMutableDouble); 5522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 5523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 2, Safepoint::kNoLazyDeopt); 5524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 55253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 55263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) { 5529014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch class DeferredLoadMutableDouble final : public LDeferredCode { 5530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 5531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredLoadMutableDouble(LCodeGen* codegen, 5532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LLoadFieldByIndex* instr, 5533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result, 5534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object, 5535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index) 5536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), 5537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_(instr), 5538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result_(result), 5539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_(object), 5540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_(index) { 5541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5542014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch void Generate() override { 5543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredLoadMutableDouble(instr_, result_, object_, index_); 5544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5545014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch LInstruction* instr() override { return instr_; } 5546958fae7ec3f466955f8e5b50fa5b8d38b9e91675Emily Bernier 5547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 5548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LLoadFieldByIndex* instr_; 5549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_; 5550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object_; 5551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index_; 5552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 5553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 55543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object = ToRegister(instr->object()); 55553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register index = ToRegister(instr->index()); 55563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 55573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 55583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredLoadMutableDouble* deferred; 5560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deferred = new(zone()) DeferredLoadMutableDouble( 5561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, instr, result, object, index); 5562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 55633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label out_of_object, done; 5564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(index, Operand(Smi::FromInt(1))); 5566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, deferred->entry()); 5567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(index, Operand(index, ASR, 1)); 5568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(index, Operand::Zero()); 55703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(lt, &out_of_object); 55713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, object, Operand::PointerOffsetFromSmiKey(index)); 55733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(scratch, JSObject::kHeaderSize)); 55743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&done); 55763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 55773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&out_of_object); 55783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); 55793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Index is equal to negated out of object property index plus 1. 5580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); 5581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); 55823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(scratch, 55833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FixedArray::kHeaderSize - kPointerSize)); 5584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 55853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&done); 55863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5587257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5588257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { 5590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register context = ToRegister(instr->context()); 5591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(context, MemOperand(fp, StandardFrameConstants::kContextOffset)); 5592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { 5596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<ScopeInfo> scope_info = instr->scope_info(); 5597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(scope_info); 5598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(ToRegister(instr->function())); 5599014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch CallRuntime(Runtime::kPushBlockContext, instr); 5600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepoint(Safepoint::kNoLazyDeopt); 5601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5604b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef __ 5605b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5606014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace internal 5607014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch} // namespace v8 5608