13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/v8.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm/lithium-codegen-arm.h" 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm/lithium-gap-resolver-arm.h" 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/base/bits.h" 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/code-factory.h" 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/code-stubs.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/hydrogen-osr.h" 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/ic.h" 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/stub-cache.h" 15b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 16b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace v8 { 17b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochnamespace internal { 18b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 19b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen 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 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void BeforeCall(int call_size) const OVERRIDE {} 3144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual 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()); 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code->is_optimized_code()) RegisterWeakObjectsInOptimizedCode(code); 65b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch PopulateDeoptimizationData(code); 66b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 67b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 68b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::SaveCallerDoubles() { 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->saves_caller_doubles()); 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(NeedsEagerFrame()); 72b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Save clobbered callee double registers"); 73b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int count = 0; 74b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector* doubles = chunk()->allocated_double_registers(); 75b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector::Iterator save_iterator(doubles); 76b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!save_iterator.Done()) { 77b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(DwVfpRegister::FromAllocationIndex(save_iterator.Current()), 78b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(sp, count * kDoubleSize)); 79b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch save_iterator.Advance(); 80b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch count++; 81b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 82b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 83b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 84b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 85b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::RestoreCallerDoubles() { 86b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->saves_caller_doubles()); 87b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(NeedsEagerFrame()); 88b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Restore clobbered callee double registers"); 89b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector* doubles = chunk()->allocated_double_registers(); 90b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch BitVector::Iterator save_iterator(doubles); 91b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int count = 0; 92b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (!save_iterator.Done()) { 93b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(DwVfpRegister::FromAllocationIndex(save_iterator.Current()), 94b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand(sp, count * kDoubleSize)); 95b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch save_iterator.Advance(); 96b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch count++; 97b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 98b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 99b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 101b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GeneratePrologue() { 102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_generating()); 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsOptimizing()) { 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ProfileEntryHookStub::MaybeCallEntryHook(masm_); 106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#ifdef DEBUG 108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (strlen(FLAG_stop_at) > 0 && 109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info_->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { 110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("stop_at"); 111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 112b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#endif 113b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r1: Callee's JS function. 115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // cp: Callee's context. 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // pp: Callee's constant pool pointer (if FLAG_enable_ool_constant_pool) 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // fp: Caller's frame pointer. 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // lr: Caller's pc. 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Sloppy mode functions and builtins need to replace the receiver with the 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // global proxy when called as functions (without an explicit receiver 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // object). 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info_->this_has_uses() && 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info_->strict_mode() == SLOPPY && 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !info_->is_native()) { 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label ok; 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int receiver_offset = info_->scope()->num_parameters() * kPointerSize; 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r2, MemOperand(sp, receiver_offset)); 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareRoot(r2, Heap::kUndefinedValueRootIndex); 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &ok); 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r2, GlobalObjectOperand()); 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalProxyOffset)); 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r2, MemOperand(sp, receiver_offset)); 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&ok); 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 139257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 140257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info()->set_prologue_offset(masm_->pc_offset()); 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsStub()) { 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StubPrologue(); 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Prologue(info()->IsCodePreAgingActive()); 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = true; 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info_->AddNoFrameRange(0, masm_->pc_offset()); 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 152b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Reserve space for the stack slots needed by the code. 153257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int slots = GetStackSlotCount(); 154b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (slots > 0) { 155b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_debug_code) { 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r0); 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(r0, sp, Operand(slots * kPointerSize)); 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r1, Operand(kSlotsZapValue)); 161b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label loop; 162b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&loop); 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kPointerSize)); 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r1, MemOperand(r0, 2 * kPointerSize)); 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, sp); 166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(ne, &loop); 167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r1); 168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r0); 169b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 171b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 172b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 173b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->saves_caller_doubles()) { 175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SaveCallerDoubles(); 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 178e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Possibly allocate a local context. 179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int heap_slots = info()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 180e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (heap_slots > 0) { 181e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Comment(";;; Allocate local context"); 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool need_write_barrier = true; 183e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Argument to NewContext is the function, which is in r1. 184e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (heap_slots <= FastNewContextStub::kMaximumSlots) { 185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FastNewContextStub stub(isolate(), heap_slots); 186e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CallStub(&stub); 187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Result of FastNewContextStub is always in new space. 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch need_write_barrier = false; 189e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 1913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ CallRuntime(Runtime::kNewFunctionContext, 1); 192e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 1932b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(Safepoint::kNoLazyDeopt); 194e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Context is returned in both r0 and cp. It replaces the context 195e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // passed to us. It's saved in the stack and kept live in cp. 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, r0); 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset)); 198e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Copy any necessary parameters into the context. 199e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int num_parameters = scope()->num_parameters(); 200e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch for (int i = 0; i < num_parameters; i++) { 201589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch Variable* var = scope()->parameter(i); 202589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (var->IsContextSlot()) { 203e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int parameter_offset = StandardFrameConstants::kCallerSPOffset + 204e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch (num_parameters - 1 - i) * kPointerSize; 205e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Load parameter from stack. 206e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(r0, MemOperand(fp, parameter_offset)); 207e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Store it in the context. 2083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MemOperand target = ContextOperand(cp, var->index()); 2093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(r0, target); 2103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Update the write barrier. This clobbers r3 and r0. 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (need_write_barrier) { 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteContextSlot( 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cp, 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch target.offset(), 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r0, 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch r3, 217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs); 219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (FLAG_debug_code) { 220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfInNewSpace(cp, r0, &done); 222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Abort(kExpectedNewSpaceObject); 223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 225e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 226e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 227e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Comment(";;; End allocate local context"); 228e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 229e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Trace the call. 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace && info()->IsOptimizing()) { 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We have not executed any compiled code yet, so cp still holds the 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // incoming context. 234b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ CallRuntime(Runtime::kTraceEnter, 0); 235b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 236b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return !is_aborted(); 237b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 238b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 239b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::GenerateOsrPrologue() { 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Generate the OSR entry prologue at the first unknown OSR value, or if there 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // are none, at the OSR entrypoint instruction. 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (osr_pc_offset_ >= 0) return; 244b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch osr_pc_offset_ = masm()->pc_offset(); 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Adjust the frame size, subsuming the unoptimized frame into the 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // optimized frame. 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(slots >= 0); 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(sp, sp, Operand(slots * kPointerSize)); 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) { 256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->IsCall()) { 257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); 258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->IsLazyBailout() && !instr->IsGap()) { 260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoints_.BumpLastLazySafepointIndex(); 261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 263b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 264b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 265b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GenerateDeferredCode() { 266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_generating()); 2673fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (deferred_.length() > 0) { 2683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { 2693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LDeferredCode* code = deferred_[i]; 270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = 272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instructions_->at(code->instruction_index())->hydrogen_value(); 273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordAndWritePosition( 274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch chunk()->graph()->SourcePositionToScriptPosition(value->position())); 275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; <@%d,#%d> " 277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "-------------------- Deferred %s --------------------", 2783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->instruction_index(), 279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code->instr()->hydrogen_value()->id(), 2803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch code->instr()->Mnemonic()); 281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(code->entry()); 282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsDeferredFrame()) { 283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Build frame"); 284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!frame_is_built_); 285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub()); 286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = true; 287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PushFixedFrame(); 288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch0(), Operand(Smi::FromInt(StackFrame::STUB))); 289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(scratch0()); 290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Deferred code"); 292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch code->Generate(); 294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsDeferredFrame()) { 295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; Destroy frame"); 296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(frame_is_built_); 297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(ip); 298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PopFixedFrame(); 299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch frame_is_built_ = false; 300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ jmp(code->exit()); 3023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 303b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 304b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 305257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Force constant pool emission at the end of the deferred code to make 306257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // sure that no constant pools are emitted after. 307b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch masm()->CheckConstPool(true, false); 308b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 309257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch return !is_aborted(); 310257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 311257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 312257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool LCodeGen::GenerateJumpTable() { 314257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check that the jump table is accessible from everywhere in the function 3153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // code, i.e. that offsets to the table can be encoded in the 24bit signed 316257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // immediate of a branch instruction. 317257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // To simplify we consider the code size from the first instruction to the 318257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // end of the jump table. We also don't consider the pc load delta. 319257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Each entry in the jump table generates one instruction and inlines one 320257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // 32bit data after it. 321257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!is_int24((masm()->pc_offset() / Assembler::kInstrSize) + 322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch jump_table_.length() * 7)) { 323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kGeneratedCodeIsTooLarge); 324257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 325257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (jump_table_.length() > 0) { 327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label needs_frame, call_deopt_entry; 328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; -------------------- Jump table --------------------"); 330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address base = jump_table_[0].address; 331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register entry_offset = scratch0(); 333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int length = jump_table_.length(); 335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < length; i++) { 336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; 337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&table_entry->label); 338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(jump_table_[0].bailout_type, table_entry->bailout_type); 340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address entry = table_entry->address; 341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptComment(table_entry->reason); 342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Second-level deopt table entries are contiguous and small, so instead 344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // of loading the full, absolute address of each one, load an immediate 345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // offset which will be added to the base address later. 346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(entry_offset, Operand(entry - base)); 347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (table_entry->needs_frame) { 349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->saves_caller_doubles()); 350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (needs_frame.is_bound()) { 351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&needs_frame); 352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&needs_frame); 354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; call deopt with frame"); 355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PushFixedFrame(); 356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This variant of deopt can only be used with stubs. Since we don't 357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // have a function pointer to install in the stack frame that we're 358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // building, install a special marker there instead. 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub()); 360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(Smi::FromInt(StackFrame::STUB))); 361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(ip); 362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(fp, sp, 363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&call_deopt_entry); 365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Add the base address to the offset previously loaded in 366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // entry_offset. 367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(entry_offset, entry_offset, 368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(ExternalReference::ForDeoptEntry(base))); 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ blx(entry_offset); 370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->CheckConstPool(false, false); 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The last entry can fall through into `call_deopt_entry`, avoiding a 375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // branch. 376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool need_branch = ((i + 1) != length) || call_deopt_entry.is_bound(); 377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (need_branch) __ b(&call_deopt_entry); 379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->CheckConstPool(false, !need_branch); 381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!call_deopt_entry.is_bound()) { 385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; call deopt"); 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&call_deopt_entry); 387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->saves_caller_doubles()) { 389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub()); 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RestoreCallerDoubles(); 391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Add the base address to the offset previously loaded in entry_offset. 394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(entry_offset, entry_offset, 395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(ExternalReference::ForDeoptEntry(base))); 396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ blx(entry_offset); 397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 398257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Force constant pool emission at the end of the deopt jump table to make 401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // sure that no constant pools are emitted after. 402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->CheckConstPool(true, false); 403257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 404257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The deoptimization jump table is the last part of the instruction 405257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // sequence. Mark the generated code as done unless we bailed out. 406b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!is_aborted()) status_ = DONE; 407b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return !is_aborted(); 408b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 409b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 410b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 411b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool LCodeGen::GenerateSafepointTable() { 412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(is_done()); 413257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch safepoints_.Emit(masm(), GetStackSlotCount()); 414b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return !is_aborted(); 415b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 416b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 417b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 418b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochRegister LCodeGen::ToRegister(int index) const { 419b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return Register::FromAllocationIndex(index); 420b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 421b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDwVfpRegister LCodeGen::ToDoubleRegister(int index) const { 424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return DwVfpRegister::FromAllocationIndex(index); 425b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 426b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 427b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 428b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochRegister LCodeGen::ToRegister(LOperand* op) const { 429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsRegister()); 430b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToRegister(op->index()); 431b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 433b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochRegister LCodeGen::EmitLoadRegister(LOperand* op, Register scratch) { 435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsRegister()) { 436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToRegister(op->index()); 437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 4383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(const_op); 440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> literal = constant->handle(isolate()); 4413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 4423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (r.IsInteger32()) { 443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(literal->IsNumber()); 4443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(scratch, Operand(static_cast<int32_t>(literal->Number()))); 4453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (r.IsDouble()) { 446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kEmitLoadRegisterUnsupportedDoubleImmediate); 4473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsSmiOrTagged()); 449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(scratch, literal); 4503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (op->IsStackSlot()) { 453b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ ldr(scratch, ToMemOperand(op)); 454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return scratch; 458b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 459b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 460b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDwVfpRegister LCodeGen::ToDoubleRegister(LOperand* op) const { 462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsDoubleRegister()); 463b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToDoubleRegister(op->index()); 464b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 465b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 466b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDwVfpRegister LCodeGen::EmitLoadDoubleRegister(LOperand* op, 468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SwVfpRegister flt_scratch, 469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch) { 470b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsDoubleRegister()) { 471b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return ToDoubleRegister(op->index()); 472b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 473b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(const_op); 475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> literal = constant->handle(isolate()); 476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (r.IsInteger32()) { 478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(literal->IsNumber()); 479b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ mov(ip, Operand(static_cast<int32_t>(literal->Number()))); 480b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vmov(flt_scratch, ip); 481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vcvt_f64_s32(dbl_scratch, flt_scratch); 482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 483b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kUnsupportedDoubleImmediate); 485b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsTagged()) { 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kUnsupportedTaggedImmediate); 487b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (op->IsStackSlot()) { 489b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // TODO(regis): Why is vldr not taking a MemOperand? 490b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // __ vldr(dbl_scratch, ToMemOperand(op)); 491b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch MemOperand mem_op = ToMemOperand(op); 492b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vldr(dbl_scratch, mem_op.rn(), mem_op.offset()); 493b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 494b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 495b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 496b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return dbl_scratch; 497b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 498b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 499b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5003ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHandle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { 501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(chunk_->LookupLiteralRepresentation(op).IsSmiOrTagged()); 503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return constant->handle(isolate()); 5043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochbool LCodeGen::IsInteger32(LConstantOperand* op) const { 508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32(); 509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool LCodeGen::IsSmi(LConstantOperand* op) const { 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return chunk_->LookupLiteralRepresentation(op).IsSmi(); 514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t LCodeGen::ToInteger32(LConstantOperand* op) const { 518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ToRepresentation(op, Representation::Integer32()); 519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint32_t LCodeGen::ToRepresentation(LConstantOperand* op, 523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const Representation& r) const { 524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = constant->Integer32Value(); 526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsInteger32()) return value; 527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsSmiOrTagged()); 528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return reinterpret_cast<int32_t>(Smi::FromInt(value)); 5293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochSmi* LCodeGen::ToSmi(LConstantOperand* op) const { 533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Smi::FromInt(constant->Integer32Value()); 535b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 536b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 537b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochdouble LCodeGen::ToDouble(LConstantOperand* op) const { 539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk_->LookupConstant(op); 540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasDoubleValue()); 541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return constant->DoubleValue(); 5423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 545b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochOperand LCodeGen::ToOperand(LOperand* op) { 546b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (op->IsConstantOperand()) { 547b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LConstantOperand* const_op = LConstantOperand::cast(op); 548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk()->LookupConstant(const_op); 549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Representation r = chunk_->LookupLiteralRepresentation(const_op); 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsSmi()) { 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasSmiValue()); 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(Smi::FromInt(constant->Integer32Value())); 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (r.IsInteger32()) { 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(constant->HasInteger32Value()); 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(constant->Integer32Value()); 556b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kToOperandUnsupportedDoubleImmediate); 558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsTagged()); 560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand(constant->handle(isolate())); 561b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsRegister()) { 562b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return Operand(ToRegister(op)); 563b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleRegister()) { 564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kToOperandIsDoubleRegisterUnimplemented); 565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand::Zero(); 566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 567b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Stack slots not implemented, use ToMemOperand instead. 568b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Operand::Zero(); 570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic int ArgumentsOffsetWithoutFrame(int index) { 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(index < 0); 575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return -(index + 1) * kPointerSize; 576b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 577b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 578b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 579b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochMemOperand LCodeGen::ToMemOperand(LOperand* op) const { 580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!op->IsRegister()); 581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!op->IsDoubleRegister()); 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot()); 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(fp, StackSlotOffset(op->index())); 585b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Retrieve parameter without eager stack-frame relative to the 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // stack-pointer. 588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(sp, ArgumentsOffsetWithoutFrame(op->index())); 589b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 593e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochMemOperand LCodeGen::ToHighMemOperand(LOperand* op) const { 594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(op->IsDoubleStackSlot()); 595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(fp, StackSlotOffset(op->index()) + kPointerSize); 597e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Retrieve parameter without eager stack-frame relative to the 599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // stack-pointer. 600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand( 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sp, ArgumentsOffsetWithoutFrame(op->index()) + kPointerSize); 602e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 603e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 604e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 605e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 606b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdochvoid LCodeGen::WriteTranslation(LEnvironment* environment, 607b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Translation* translation) { 608b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch if (environment == NULL) return; 609b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 610b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // The translation includes one command per value in the environment. 611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int translation_size = environment->translation_size(); 612b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // The output frame height does not include the parameters. 613b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch int height = translation_size - environment->parameter_count(); 614b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 615b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch WriteTranslation(environment->outer(), translation); 616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool has_closure_id = !info()->closure().is_null() && 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !info()->closure().is_identical_to(environment->closure()); 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int closure_id = has_closure_id 619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? DefineDeoptimizationLiteral(environment->closure()) 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Translation::kSelfLiteralId; 621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 6223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (environment->frame_type()) { 6233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case JS_FUNCTION: 6243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch translation->BeginJSFrame(environment->ast_id(), closure_id, height); 6253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 6263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case JS_CONSTRUCT: 6273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch translation->BeginConstructStubFrame(closure_id, translation_size); 6283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case JS_GETTER: 630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(translation_size == 1); 631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(height == 0); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginGetterStubFrame(closure_id); 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case JS_SETTER: 635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(translation_size == 2); 636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(height == 0); 637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginSetterStubFrame(closure_id); 638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case STUB: 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginCompiledStubFrame(); 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 6423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case ARGUMENTS_ADAPTOR: 6433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch translation->BeginArgumentsAdaptorFrame(closure_id, translation_size); 6443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 6453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_index = 0; 648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dematerialized_index = 0; 649b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch for (int i = 0; i < translation_size; ++i) { 650b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch LOperand* value = environment->values()->at(i); 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddToTranslation(environment, 652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation, 653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value, 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasTaggedValueAt(i), 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasUint32ValueAt(i), 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &object_index, 657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &dematerialized_index); 658b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 659b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 660b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 661b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::AddToTranslation(LEnvironment* environment, 663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Translation* translation, 664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* op, 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_tagged, 666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_uint32, 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int* object_index_pointer, 668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int* dematerialized_index_pointer) { 669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op == LEnvironment::materialization_marker()) { 670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_index = (*object_index_pointer)++; 671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment->ObjectIsDuplicateAt(object_index)) { 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dupe_of = environment->ObjectDuplicateOfAt(object_index); 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->DuplicateObject(dupe_of); 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int object_length = environment->ObjectLengthAt(object_index); 677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (environment->ObjectIsArgumentsAt(object_index)) { 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginArgumentsObject(object_length); 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->BeginCapturedObject(object_length); 681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int dematerialized_index = *dematerialized_index_pointer; 683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int env_offset = environment->translation_size() + dematerialized_index; 684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *dematerialized_index_pointer += object_length; 685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < object_length; ++i) { 686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* value = environment->values()->at(env_offset + i); 687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddToTranslation(environment, 688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation, 689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value, 690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasTaggedValueAt(env_offset + i), 691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->HasUint32ValueAt(env_offset + i), 692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_index_pointer, 693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dematerialized_index_pointer); 694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (op->IsStackSlot()) { 699b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (is_tagged) { 700b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreStackSlot(op->index()); 701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (is_uint32) { 702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->StoreUint32StackSlot(op->index()); 703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 704b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreInt32StackSlot(op->index()); 705b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 706b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleStackSlot()) { 707b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreDoubleStackSlot(op->index()); 708b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsRegister()) { 709b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(op); 710b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (is_tagged) { 711b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreRegister(reg); 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (is_uint32) { 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translation->StoreUint32Register(reg); 714b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 715b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreInt32Register(reg); 716b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 717b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsDoubleRegister()) { 718b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DoubleRegister reg = ToDoubleRegister(op); 719b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreDoubleRegister(reg); 720b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (op->IsConstantOperand()) { 721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = chunk()->LookupConstant(LConstantOperand::cast(op)); 722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int src_index = DefineDeoptimizationLiteral(constant->handle(isolate())); 723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch translation->StoreLiteral(src_index); 724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 729b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint LCodeGen::CallCodeSize(Handle<Code> code, RelocInfo::Mode mode) { 731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int size = masm()->CallSize(code, mode); 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code->kind() == Code::BINARY_OP_IC || 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code->kind() == Code::COMPARE_IC) { 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch size += Assembler::kInstrSize; // extra nop() added in CallCodeGeneric. 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return size; 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::CallCode(Handle<Code> code, 741b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch RelocInfo::Mode mode, 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TargetAddressStorageMode storage_mode) { 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT, storage_mode); 7458b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 7468b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 7478b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 7488b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::CallCodeGeneric(Handle<Code> code, 7498b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RelocInfo::Mode mode, 7508b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch LInstruction* instr, 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SafepointMode safepoint_mode, 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TargetAddressStorageMode storage_mode) { 753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr != NULL); 754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission to ensure nop indicating no inlined smi code 755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is in the correct position. 756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(code, mode, TypeFeedbackId::None(), al, storage_mode); 7582b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt(instr, safepoint_mode); 75918a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch 76018a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch // Signal that we don't inline smi code before these stubs in the 76118a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch // optimizing code generator. 762257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (code->kind() == Code::BINARY_OP_IC || 76318a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch code->kind() == Code::COMPARE_IC) { 76418a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch __ nop(); 76518a6f57610d404676fb0db2114fd7ad91e0402b0Ben Murdoch } 766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 76944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::CallRuntime(const Runtime::Function* function, 770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int num_arguments, 771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SaveFPRegsMode save_doubles) { 773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr != NULL); 774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntime(function, num_arguments, save_doubles); 776b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 7772b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 7788b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 7798b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 7808b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::LoadContextFromDeferred(LOperand* context) { 782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (context->IsRegister()) { 783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(cp, ToRegister(context)); 784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (context->IsStackSlot()) { 785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, ToMemOperand(context)); 786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (context->IsConstantOperand()) { 787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HConstant* constant = 788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch chunk_->LookupConstant(LConstantOperand::cast(context)); 789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(cp, Handle<Object>::cast(constant->handle(isolate()))); 790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNREACHABLE(); 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7968b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, 7978b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch int argc, 798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LInstruction* instr, 799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* context) { 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadContextFromDeferred(context); 8018b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ CallRuntimeSaveDoubles(id); 8028b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RecordSafepointWithRegisters( 8032b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); 804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 8072b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RegisterEnvironmentForDeoptimization(LEnvironment* environment, 8082b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode mode) { 809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch environment->set_has_been_used(); 810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!environment->HasBeenRegistered()) { 811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Physical stack frame layout: 812b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // -x ............. -4 0 ..................................... y 813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [incoming arguments] [spill slots] [pushed outgoing arguments] 814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Layout of the environment: 816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // 0 ..................................................... size-1 817b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [parameters] [locals] [expression stack including arguments] 818b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 819b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Layout of the translation: 820b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // 0 ........................................................ size - 1 + 4 821b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // [expression stack including arguments] [locals] [4 words] [parameters] 822b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // |>------------ translation_size ------------<| 823b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int frame_count = 0; 8253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int jsframe_count = 0; 826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (LEnvironment* e = environment; e != NULL; e = e->outer()) { 827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ++frame_count; 8283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (e->frame_type() == JS_FUNCTION) { 8293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ++jsframe_count; 8303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 831b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Translation translation(&translations_, frame_count, jsframe_count, zone()); 833b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch WriteTranslation(environment, &translation); 834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int deoptimization_index = deoptimizations_.length(); 8352b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch int pc_offset = masm()->pc_offset(); 8362b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch environment->Register(deoptimization_index, 8372b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch translation.index(), 8382b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deoptimizations_.Add(environment, zone()); 840b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 841b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 842b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DeoptimizeIf(Condition condition, LInstruction* instr, 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* detail, 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType bailout_type) { 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LEnvironment* environment = instr->environment(); 8482b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(environment->HasBeenRegistered()); 850b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int id = environment->deoptimization_index(); 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsOptimizing() || info()->IsStub()); 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address entry = 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type); 854b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (entry == NULL) { 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kBailoutWasNotPrepared); 856b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return; 857b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 858b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_deopt_every_n_times != 0 && !info()->IsStub()) { 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalReference count = ExternalReference::stress_deopt_count(isolate()); 862b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Store the condition on the stack if necessary 864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand::Zero(), LeaveCC, NegateCondition(condition)); 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(1), LeaveCC, condition); 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(scratch); 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(r1); 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(count)); 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r1, MemOperand(scratch)); 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r1, r1, Operand(1), SetCC); 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r1, Operand(FLAG_deopt_every_n_times), LeaveCC, eq); 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(r1, MemOperand(scratch)); 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(r1); 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Clean up the stack before the deoptimizer call 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ pop(scratch); 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(entry, RelocInfo::RUNTIME_ENTRY, eq); 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // 'Restore' the condition in a slightly hacky way. (It would be better 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to use 'msr' and 'mrs' instructions here, but they are not supported by 887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // our ARM simulator). 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition != al) { 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch condition = ne; 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand::Zero()); 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 892b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 893b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->ShouldTrapOnDeopt()) { 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("trap_on_deopt", condition); 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 897257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::Reason reason(instr->hydrogen_value()->position().raw(), 899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->Mnemonic(), detail); 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(info()->IsStub() || frame_is_built_); 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Go through jump table if we need to handle condition, build frame, or 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // restore caller doubles. 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (condition == al && frame_is_built_ && 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !info()->saves_caller_doubles()) { 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptComment(reason); 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(entry, RelocInfo::RUNTIME_ENTRY); 907b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::JumpTableEntry table_entry(entry, reason, bailout_type, 909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !frame_is_built_); 910257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // We often have several deopts to the same entry, reuse the last 911257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // jump entry if this is the case. 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (jump_table_.is_empty() || 913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !table_entry.IsEquivalentTo(jump_table_.last())) { 914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch jump_table_.Add(table_entry, zone()); 915b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, &jump_table_.last().label); 917b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 918b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 919b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 920b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DeoptimizeIf(Condition condition, LInstruction* instr, 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* detail) { 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType bailout_type = info()->IsStub() 924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? Deoptimizer::LAZY 925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Deoptimizer::EAGER; 926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(condition, instr, detail, bailout_type); 927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 930b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::PopulateDeoptimizationData(Handle<Code> code) { 931b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int length = deoptimizations_.length(); 932b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (length == 0) return; 933b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<DeoptimizationInputData> data = 934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizationInputData::New(isolate(), length, TENURED); 935b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<ByteArray> translations = 937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch translations_.CreateByteArray(isolate()->factory()); 938e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch data->SetTranslationByteArray(*translations); 939b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_)); 940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetOptimizationId(Smi::FromInt(info_->optimization_id())); 941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info_->IsOptimizing()) { 942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Reference to shared function info does not change between phases. 943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllowDeferredHandleDereference allow_handle_dereference; 944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetSharedFunctionInfo(*info_->shared_info()); 945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetSharedFunctionInfo(Smi::FromInt(0)); 947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 948b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 949b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<FixedArray> literals = 95044f0eee88ff00398ff7f715fab053374d808c90dSteve Block factory()->NewFixedArray(deoptimization_literals_.length(), TENURED); 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { AllowDeferredHandleDereference copy_handles; 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < deoptimization_literals_.length(); i++) { 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch literals->set(i, *deoptimization_literals_[i]); 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetLiteralArray(*literals); 956b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 957b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetOsrAstId(Smi::FromInt(info_->osr_ast_id().ToInt())); 959b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch data->SetOsrPcOffset(Smi::FromInt(osr_pc_offset_)); 960b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 961b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Populate the deoptimization entries. 962b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < length; i++) { 963b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LEnvironment* env = deoptimizations_[i]; 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch data->SetAstId(i, env->ast_id()); 965b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch data->SetTranslationIndex(i, Smi::FromInt(env->translation_index())); 966b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch data->SetArgumentsStackHeight(i, 967b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Smi::FromInt(env->arguments_stack_height())); 9682b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch data->SetPc(i, Smi::FromInt(env->pc_offset())); 969b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 970b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch code->set_deoptimization_data(*data); 971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 972b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 973b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 974b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochint LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { 975b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int result = deoptimization_literals_.length(); 976b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < deoptimization_literals_.length(); ++i) { 977b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (deoptimization_literals_[i].is_identical_to(literal)) return i; 978b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deoptimization_literals_.Add(literal, zone()); 980b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return result; 981b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 982b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 983b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 984b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { 985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(deoptimization_literals_.length() == 0); 986b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch const ZoneList<Handle<JSFunction> >* inlined_closures = 988b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch chunk()->inlined_closures(); 989b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0, length = inlined_closures->length(); 991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i < length; 992b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i++) { 993b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DefineDeoptimizationLiteral(inlined_closures->at(i)); 994b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 995b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 996b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch inlined_function_count_ = deoptimization_literals_.length(); 997b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 998b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 999b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 10002b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RecordSafepointWithLazyDeopt( 10012b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LInstruction* instr, SafepointMode safepoint_mode) { 10022b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { 10032b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); 10042b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } else { 1005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 10062b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithRegisters( 10072b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr->pointer_map(), 0, Safepoint::kLazyDeopt); 10082b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 10092b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch} 10102b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 10112b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 10121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::RecordSafepoint( 10131e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LPointerMap* pointers, 10141e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Safepoint::Kind kind, 10151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block int arguments, 10162b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 1017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(expected_safepoint_kind_ == kind); 10188b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 10193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); 1020b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Safepoint safepoint = safepoints_.DefineSafepoint(masm(), 10212b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch kind, arguments, deopt_mode); 1022b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < operands->length(); i++) { 1023b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* pointer = operands->at(i); 1024b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (pointer->IsStackSlot()) { 1025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoint.DefinePointerSlot(pointer->index(), zone()); 10261e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { 1027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoint.DefinePointerRegister(ToRegister(pointer), zone()); 1028b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1029b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_enable_ool_constant_pool && (kind & Safepoint::kWithRegisters)) { 1031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Register pp always contains a pointer to the constant pool. 1032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch safepoint.DefinePointerRegister(pp, zone()); 10331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 10341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 10351e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 10361e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 10371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::RecordSafepoint(LPointerMap* pointers, 10382b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 10392b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(pointers, Safepoint::kSimple, 0, deopt_mode); 1040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1041b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 10432b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::RecordSafepoint(Safepoint::DeoptMode deopt_mode) { 1044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LPointerMap empty_pointers(zone()); 10452b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint(&empty_pointers, deopt_mode); 1046e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 1047e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1048e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1049b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, 1050b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int arguments, 10512b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch Safepoint::DeoptMode deopt_mode) { 10522b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepoint( 10532b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch pointers, Safepoint::kWithRegisters, arguments, deopt_mode); 1054b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1055b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1056b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::RecordAndWritePosition(int position) { 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (position == RelocInfo::kNoPosition) return; 1059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->positions_recorder()->RecordPosition(position); 1060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm()->positions_recorder()->WriteRecordedPositions(); 1061b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 1062b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1063b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic const char* LabelType(LLabel* label) { 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (label->is_loop_header()) return " (loop header)"; 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (label->is_osr_entry()) return " (OSR entry)"; 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return ""; 1068b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1069b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1070b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1071b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLabel(LLabel* label) { 1072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", 1073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_instruction_, 1074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch label->hydrogen_value()->id(), 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch label->block_id(), 1076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LabelType(label)); 1077b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(label->label()); 1078b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch current_block_ = label->block_id(); 1079257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DoGap(label); 1080b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1081b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1082b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1083b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoParallelMove(LParallelMove* move) { 1084e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch resolver_.Resolve(move); 1085b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1086b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1087b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1088b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoGap(LGap* gap) { 1089b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = LGap::FIRST_INNER_POSITION; 1090b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i <= LGap::LAST_INNER_POSITION; 1091b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch i++) { 1092b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); 1093b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LParallelMove* move = gap->GetParallelMove(inner_pos); 1094b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (move != NULL) DoParallelMove(move); 1095b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1096b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1097b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1098b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1099257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoInstructionGap(LInstructionGap* instr) { 1100257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch DoGap(instr); 1101257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 1102257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1103257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 1104b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoParameter(LParameter* instr) { 1105b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Nothing to do. 1106b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1107b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1108b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1109b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallStub(LCallStub* instr) { 1110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 1111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 11129fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block switch (instr->hydrogen()->major_key()) { 11139fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block case CodeStub::RegExpExec: { 1114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RegExpExecStub stub(isolate()); 11159fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 11169fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block break; 11179fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 11189fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block case CodeStub::SubString: { 1119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SubStringStub stub(isolate()); 11209fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 11219fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block break; 11229fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 11239fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block case CodeStub::StringCompare: { 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringCompareStub stub(isolate()); 1125b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 11269fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block break; 11279fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 11289fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block default: 11299fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block UNREACHABLE(); 11309fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 1131b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateOsrPrologue(); 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoModByPowerOf2I(LModByPowerOf2I* instr) { 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(dividend.is(ToRegister(instr->result()))); 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Theoretically, a variation of the branch-free code for integer division by 1145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // a power of 2 (calculating the remainder via an additional multiplication 1146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // (which gets simplified to an 'and') and subtraction) should be faster, and 1147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // this is exactly what GCC and clang emit. Nevertheless, benchmarks seem to 1148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // indicate that positive dividends are heavily favored, so the branching 1149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // version performs better. 1150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label dividend_is_not_negative, done; 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kLeftCanBeNegative)) { 1154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, ÷nd_is_not_negative); 1156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Note that this is correct even for kMinInt operands. 1157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(dividend, dividend, Operand::Zero()); 1158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(dividend, dividend, Operand(mask)); 1159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(dividend, dividend, Operand::Zero(), SetCC); 1160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 1164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(÷nd_is_not_negative); 1167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(dividend, dividend, Operand(mask)); 1168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoModByConstI(LModByConstI* instr) { 1173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 1180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(Abs(divisor))); 1185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, ip, result, ip); 1186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, dividend, result, SetCC); 1187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for negative zero. 1189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label remainder_not_zero; 1192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &remainder_not_zero); 1193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(lt, instr); 1195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&remainder_not_zero); 1196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1197b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoModI(LModI* instr) { 1201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMod* hmod = instr->hydrogen(); 1202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 120444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(instr->left()); 1206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = ToRegister(instr->right()); 1207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 120844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x % 0, sdiv might signal an exception. We have to deopt in this 1211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // case because we can't return a NaN. 1212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanBeDivByZero)) { 1213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand::Zero()); 1214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 121644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for kMinInt % -1, sdiv will return kMinInt, which is not what we 1218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // want. We have to deopt if we care about -0, because we can't return that. 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanOverflow)) { 1220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_overflow_possible; 1221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand(kMinInt)); 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_overflow_possible); 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand(-1)); 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_overflow_possible); 1228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, Operand::Zero()); 1229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 1230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_overflow_possible); 1232b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 123344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // For 'r3 = r1 % r2' we can have the following ARM code: 1235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // sdiv r3, r1, r2 1236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // mls r3, r3, r2, r1 123744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result_reg, left_reg, right_reg); 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(result_reg, result_reg, right_reg, left_reg); 1240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we care about -0, test if the dividend is <0 and the result is 0. 1242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 1244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 1245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand::Zero()); 1246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(lt, instr); 1247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 124944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // General case, without any SDIV support. 1252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(instr->left()); 1253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = ToRegister(instr->right()); 1254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 1255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 1256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(left_reg)); 1257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(right_reg)); 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(result_reg)); 1259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dividend = ToDoubleRegister(instr->temp()); 1260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister divisor = ToDoubleRegister(instr->temp2()); 1261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!divisor.is(dividend)); 1262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister quotient = double_scratch0(); 1263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!quotient.is(dividend)); 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!quotient.is(divisor)); 126544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x % 0, we have to deopt in this case because we can't return a 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NaN. 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kCanBeDivByZero)) { 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right_reg, Operand::Zero()); 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1273b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg); 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load the arguments in VFP registers. The divisor value is preloaded 1276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // before. Be careful that 'right_reg' is only live on entry. 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(svenpanne) The last comments seems to be wrong nowadays. 1278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), left_reg); 1279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(dividend, double_scratch0().low()); 1280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), right_reg); 1281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(divisor, double_scratch0().low()); 1282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We do not care about the sign of the divisor. Note that we still handle 1284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the kMinInt % -1 case correctly, though. 1285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vabs(divisor, divisor); 1286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute the quotient and round it to a 32bit integer. 1287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(quotient, dividend, divisor); 1288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(quotient.low(), quotient); 1289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(quotient, quotient.low()); 1290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute the remainder in result. 1292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmul(double_scratch0(), divisor, quotient); 1293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), double_scratch0()); 1294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(scratch, double_scratch0().low()); 1295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result_reg, left_reg, scratch, SetCC); 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If we care about -0, test if the dividend is <0 and the result is 0. 1298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { 1299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 1300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, Operand::Zero()); 1301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(mi, instr); 1302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1304b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1306b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 13073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDivByPowerOf2I(LDivByPowerOf2I* instr) { 1309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(divisor == kMinInt || base::bits::IsPowerOfTwo32(Abs(divisor))); 1313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result.is(dividend)); 131444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = instr->hydrogen(); 1317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && divisor == -1) { 1323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand(kMinInt)); 1324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if remainder will not be 0. 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32) && 1328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch divisor != 1 && divisor != -1) { 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(dividend, Operand(mask)); 1331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 1332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 133344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == -1) { // Nice shortcut, not needed for correctness. 1335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, dividend, Operand(0)); 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2Abs(divisor); 1339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift == 0) { 1340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, dividend); 1341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (shift == 1) { 1342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, dividend, Operand(dividend, LSR, 31)); 134344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(dividend, ASR, 31)); 1345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, dividend, Operand(result, LSR, 32 - shift)); 134644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 1347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift > 0) __ mov(result, Operand(result, ASR, shift)); 1348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand(0)); 1349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1350b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDivByConstI(LDivByConstI* instr) { 1353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 1360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HDiv* hdiv = instr->hydrogen(); 1365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) { 1374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(divisor)); 1375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(scratch0(), ip, result, ip); 1376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch0(), scratch0(), dividend, SetCC); 1377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 1378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1379b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1380b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1381b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// TODO(svenpanne) Refactor this to avoid code duplication with DoFlooringDivI. 1383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDivI(LDivI* instr) { 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation* hdiv = instr->hydrogen(); 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register divisor = ToRegister(instr->divisor()); 1387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1388b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1389b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check for x / 0. 1390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { 1391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand::Zero()); 1392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1393b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1394b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1395b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check for (0 / -x) that will produce negative zero. 1396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { 1397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label positive; 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen_value()->CheckFlag(HValue::kCanBeDivByZero)) { 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the test only if it hadn't be done above. 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand::Zero()); 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &positive); 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&positive); 1406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!CpuFeatures::IsSupported(SUDIV) || 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32))) { 1412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We don't need to check for overflow when truncating with sdiv 1413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // support because, on ARM, sdiv kMinInt, -1 -> kMinInt. 1414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand(kMinInt)); 1415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(divisor, Operand(-1), eq); 1416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result, dividend, divisor); 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vleft = ToDoubleRegister(instr->temp()); 1424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vright = double_scratch0(); 1425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), dividend); 1426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vleft, double_scratch0().low()); 1427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), divisor); 1428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vright, double_scratch0().low()); 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(vleft, vleft, vright); // vleft now contains the result. 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), vleft); 1431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(result, double_scratch0().low()); 1432b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1433b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32)) { 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute remainder and deopt if it's not zero. 1436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register remainder = scratch0(); 1437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(remainder, result, divisor, dividend); 1438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(remainder, Operand::Zero()); 1439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 1440b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1442b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1443b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMultiplyAddD(LMultiplyAddD* instr) { 1445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister addend = ToDoubleRegister(instr->addend()); 1446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); 1447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); 1448b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This is computed in-place. 1450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(addend.is(ToDoubleRegister(instr->result()))); 1451b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmla(addend, multiplier, multiplicand); 1453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1454b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1455b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMultiplySubD(LMultiplySubD* instr) { 1457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister minuend = ToDoubleRegister(instr->minuend()); 1458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplier = ToDoubleRegister(instr->multiplier()); 1459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister multiplicand = ToDoubleRegister(instr->multiplicand()); 1460b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This is computed in-place. 1462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(minuend.is(ToDoubleRegister(instr->result()))); 1463b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmls(minuend, multiplier, multiplicand); 1465b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 1466b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1467b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivByPowerOf2I(LFlooringDivByPowerOf2I* instr) { 1469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1472b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is 1, return the dividend. 1474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 1) { 1475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result, dividend); 1476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1477e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 1478b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is positive, things are easy: There can be no deopts and we 1480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // can simply do an arithmetic right shift. 1481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2Abs(divisor); 1482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor > 1) { 1483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(dividend, ASR, shift)); 1484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1486b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the divisor is negative, we have to negate and handle edge cases. 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, dividend, Operand::Zero(), SetCC); 1489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 1490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1492b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Dividing by -1 is basically negation, unless we overflow. 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == -1) { 1495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { 1496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 1497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the negation could not overflow, simply shifting is OK. 1502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { 1503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(result, ASR, shift)); 1504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 15063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(kMinInt / divisor), LeaveCC, vs); 1508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(result, ASR, shift), LeaveCC, vc); 1509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 15103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivByConstI(LFlooringDivByConstI* instr) { 1513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dividend = ToRegister(instr->dividend()); 1514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t divisor = instr->divisor(); 1515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!dividend.is(result)); 1517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor == 0) { 1519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 1520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMathFloorOfDiv* hdiv = instr->hydrogen(); 1525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { 1526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Easy case: We need no dynamic check for the dividend and the flooring 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // division is the same as the truncating division. 1532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((divisor > 0 && !hdiv->CheckFlag(HValue::kLeftCanBeNegative)) || 1533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (divisor < 0 && !hdiv->CheckFlag(HValue::kLeftCanBePositive))) { 1534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // In the general case we may need to adjust before and after the truncating 1540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // division to get a flooring division. 1541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 1542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp.is(dividend) && !temp.is(result)); 1543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label needs_adjustment, done; 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(dividend, Operand::Zero()); 1545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(divisor > 0 ? lt : gt, &needs_adjustment); 1546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, dividend, Abs(divisor)); 1547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 1549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&needs_adjustment); 1550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(temp, dividend, Operand(divisor > 0 ? 1 : -1)); 1551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncatingDiv(result, temp, Abs(divisor)); 1552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (divisor < 0) __ rsb(result, result, Operand::Zero()); 1553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, result, Operand(1)); 1554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// TODO(svenpanne) Refactor this to avoid code duplication with DoDivI. 1559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoFlooringDivI(LFlooringDivI* instr) { 1560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HBinaryOperation* hdiv = instr->hydrogen(); 1561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->dividend()); 1562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(instr->divisor()); 1563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for x / 0. 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { 1567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand::Zero()); 1568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (0 / -x) that will produce negative zero. 1572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { 1573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label positive; 1574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen_value()->CheckFlag(HValue::kCanBeDivByZero)) { 1575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the test only if it hadn't be done above. 1576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand::Zero()); 1577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &positive); 1579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&positive); 1582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for (kMinInt / -1). 1585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hdiv->CheckFlag(HValue::kCanOverflow) && 1586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!CpuFeatures::IsSupported(SUDIV) || 1587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32))) { 1588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We don't need to check for overflow when truncating with sdiv 1589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // support because, on ARM, sdiv kMinInt, -1 -> kMinInt. 1590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand(kMinInt)); 1591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(right, Operand(-1), eq); 1592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (CpuFeatures::IsSupported(SUDIV)) { 1596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatureScope scope(masm(), SUDIV); 1597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sdiv(result, left, right); 1598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vleft = ToDoubleRegister(instr->temp()); 1600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoubleRegister vright = double_scratch0(); 1601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), left); 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vleft, double_scratch0().low()); 1603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(double_scratch0().low(), right); 1604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(vright, double_scratch0().low()); 1605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vdiv(vleft, vleft, vright); // vleft now contains the result. 1606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_s32_f64(double_scratch0().low(), vleft); 1607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(result, double_scratch0().low()); 1608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 1611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register remainder = scratch0(); 1612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Mls(remainder, result, right, left); 1613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(remainder, Operand::Zero()); 1614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &done); 1615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(remainder, remainder, Operand(right)); 1616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, result, Operand(remainder, ASR, 31)); 1617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 1618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1619b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMulI(LMulI* instr) { 1622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Note that result may alias left. 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 1625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool bailout_on_minus_zero = 1628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero); 1629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 1630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsConstantOperand()) { 1632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t constant = ToInteger32(LConstantOperand::cast(right_op)); 1633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (bailout_on_minus_zero && (constant < 0)) { 1635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The case of a null constant will be handled separately. 1636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If constant is negative and left is null, the result should be -0. 1637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 1639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch switch (constant) { 16423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case -1: 1643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (overflow) { 1644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand::Zero(), SetCC); 1645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 1646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand::Zero()); 1648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 16493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 16503fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case 0: 16513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (bailout_on_minus_zero) { 16523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // If left is strictly negative and the constant is null, the 16533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // result is -0. Deoptimize if required, otherwise return 0. 1654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left, Operand::Zero()); 1655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(mi, instr); 16563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 16583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 16593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch case 1: 16603fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 16613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch break; 16623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch default: 16633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Multiplying by powers of two and powers of two plus or minus 16643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // one can be done faster with shifted operands. 16653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // For other constants we emit standard code. 16663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int32_t mask = constant >> 31; 16673fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch uint32_t constant_abs = (constant + mask) ^ mask; 16683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base::bits::IsPowerOfTwo32(constant_abs)) { 1670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs); 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift)); 16723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Correct the sign of the result is the constant is negative. 1673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 1674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (base::bits::IsPowerOfTwo32(constant_abs - 1)) { 1675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs - 1); 1676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, left, Operand(left, LSL, shift)); 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Correct the sign of the result is the constant is negative. 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 1679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (base::bits::IsPowerOfTwo32(constant_abs + 1)) { 1680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t shift = WhichPowerOf2(constant_abs + 1); 1681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, left, Operand(left, LSL, shift)); 1682b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Correct the sign of the result is the constant is negative. 1683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant < 0) __ rsb(result, result, Operand::Zero()); 16843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 16853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Generate standard code. 16863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(ip, Operand(constant)); 16873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mul(result, left, ip); 16883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 16893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 1690b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1691b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 1692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right_op->IsRegister()); 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(right_op); 1694b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (overflow) { 1696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 16973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // scratch:result = left * right. 1698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmi()) { 1699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(result, left); 1700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, scratch, result, right); 1701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ smull(result, scratch, left, right); 1703b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 17043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(scratch, Operand(result, ASR, 31)); 1705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 1706b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 1707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmi()) { 1708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(result, left); 1709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul(result, result, right); 1710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mul(result, left, right); 1712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 17133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 17143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 17153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (bailout_on_minus_zero) { 17163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Label done; 1717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ teq(left, Operand(right)); 1718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(pl, &done); 1719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Bail out if the result is minus zero. 1720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 1721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 17223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(&done); 1723b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1724b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1725b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1726b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1727b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1728b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoBitI(LBitI* instr) { 1729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left_op = instr->left(); 1730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(left_op->IsRegister()); 17323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register left = ToRegister(left_op); 17333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 17343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Operand right(no_reg); 173544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsStackSlot()) { 17373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch right = Operand(EmitLoadRegister(right_op, ip)); 173844f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right_op->IsRegister() || right_op->IsConstantOperand()); 17403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch right = ToOperand(right_op); 174144f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 174244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1743b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_AND: 17453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ and_(result, left, right); 1746b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_OR: 17483fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ orr(result, left, right); 1749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1750b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::BIT_XOR: 1751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_op->IsConstantOperand() && right.immediate() == int32_t(~0)) { 1752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mvn(result, Operand(left)); 1753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(result, left, right); 1755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1757b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1759b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1760b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1761b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1762b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1763b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1764b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoShiftI(LShiftI* instr) { 17653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Both 'left' and 'right' are "used at start" (see LCodeGen::DoShift), so 17663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // result may alias either of them. 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right_op = instr->right(); 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 17693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 17709fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 17713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (right_op->IsRegister()) { 17723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Mask the right_op operand. 17733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ and_(scratch, ToRegister(right_op), Operand(0x1F)); 1774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::ROR: 1776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, ROR, scratch)); 1777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1778b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SAR: 17793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, ASR, scratch)); 1780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHR: 1782b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->can_deopt()) { 17833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, scratch), SetCC); 1784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(mi, instr); 1785b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, scratch)); 1787b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1788b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHL: 17903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSL, scratch)); 1791b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1792b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1793b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1794b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1795b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 17973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Mask the right_op operand. 17983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int value = ToInteger32(LConstantOperand::cast(right_op)); 1799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); 1800b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 1801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::ROR: 1802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_count != 0) { 1803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, ROR, shift_count)); 1804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result, left); 1806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1808b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SAR: 1809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (shift_count != 0) { 18103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, ASR, shift_count)); 18113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 18123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHR: 18163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (shift_count != 0) { 18173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ mov(result, Operand(left, LSR, shift_count)); 1818b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 18193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (instr->can_deopt()) { 18203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ tst(left, Operand(0x80000000)); 1821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 18223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 18233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1824b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1825b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1826b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SHL: 1827b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (shift_count != 0) { 1828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi() && 1829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->can_deopt()) { 1830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_count != 1) { 1831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift_count - 1)); 1832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, result, SetCC); 1833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, left, SetCC); 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(left, LSL, shift_count)); 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 18403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 18413fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, left); 1842b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1843b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1844b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 1845b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 1846b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 1847b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1848b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1849b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1850b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1851b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1852b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSubI(LSubI* instr) { 1853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 18553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LOperand* result = instr->result(); 185644f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 185744f0eee88ff00398ff7f715fab053374d808c90dSteve Block SBit set_cond = can_overflow ? SetCC : LeaveCC; 185844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 1859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 186044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register right_reg = EmitLoadRegister(right, ip); 18613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ sub(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 186244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 1863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 18643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ sub(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 186544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 186644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 186744f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (can_overflow) { 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 1869b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1870b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1871b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1872b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoRSubI(LRSubI* instr) { 1874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 1875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 1876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* result = instr->result(); 1877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 1878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SBit set_cond = can_overflow ? SetCC : LeaveCC; 1879b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 1881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right_reg = EmitLoadRegister(right, ip); 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 1885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 1886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1887b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_overflow) { 1889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1891b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1892b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1893b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantI(LConstantI* instr) { 1895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 1896b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1897b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1898b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantS(LConstantS* instr) { 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 19019fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block} 1902b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1903b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantD(LConstantD* instr) { 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->result()->IsDoubleRegister()); 1906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double v = instr->value(); 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Vmov(result, v, scratch0()); 1909b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1910b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1911b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantE(LConstantE* instr) { 1913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ToRegister(instr->result()), Operand(instr->value())); 19143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 19153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 19163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstantT(LConstantT* instr) { 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Object> object = instr->value(isolate()); 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllowDeferredHandleDereference smi_check; 1920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(ToRegister(instr->result()), object); 1921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1922b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1923b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMapEnumLength(LMapEnumLength* instr) { 1925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 1926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register map = ToRegister(instr->value()); 1927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EnumLength(result, map); 1928b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1929b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1930b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 19313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoDateField(LDateField* instr) { 1932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->date()); 19333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 1934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = ToRegister(instr->temp()); 19353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Smi* index = instr->index(); 19363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label runtime, done; 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(object.is(result)); 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(object.is(r0)); 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(scratch0())); 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(object)); 19413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(object); 1943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 19443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareObjectType(object, scratch, scratch, JS_DATE_TYPE); 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 19463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 19473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (index->value() == 0) { 19483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset)); 19493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 19503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (index->value() < JSDate::kFirstUncachedField) { 19513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ExternalReference stamp = ExternalReference::date_cache_stamp(isolate()); 19523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(scratch, Operand(stamp)); 19533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch, MemOperand(scratch)); 19543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch0(), FieldMemOperand(object, JSDate::kCacheStampOffset)); 19553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(scratch, scratch0()); 19563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(ne, &runtime); 19573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset + 19583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kPointerSize * index->value())); 19593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ jmp(&done); 19603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 19613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&runtime); 19623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ PrepareCallCFunction(2, scratch); 19633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(r1, Operand(index)); 19643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2); 19653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&done); 19663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 19673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 19683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 19693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMemOperand LCodeGen::BuildSeqStringOperand(Register string, 1971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* index, 1972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding) { 1973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (index->IsConstantOperand()) { 1974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = ToInteger32(LConstantOperand::cast(index)); 1975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::TWO_BYTE_ENCODING) { 1976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset *= kUC16Size; 1977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kCharSize == 1); 1979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FieldMemOperand(string, SeqString::kHeaderSize + offset); 1980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 1982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(string)); 1983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch.is(ToRegister(index))); 1984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 1985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, string, Operand(ToRegister(index))); 1986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kUC16Size == 2); 1988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, string, Operand(ToRegister(index), LSL, 1)); 1989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return FieldMemOperand(scratch, SeqString::kHeaderSize); 1991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoSeqStringGetChar(LSeqStringGetChar* instr) { 1995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding = instr->hydrogen()->encoding(); 1996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register string = ToRegister(instr->string()); 19973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code) { 2000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(string, HeapObject::kMapOffset)); 2002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); 2003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ and_(scratch, scratch, 2005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(kStringRepresentationMask | kStringEncodingMask)); 2006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; 2007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; 2008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(encoding == String::ONE_BYTE_ENCODING 2009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? one_byte_seq_type : two_byte_seq_type)); 2010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Check(eq, kUnexpectedStringType); 2011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = BuildSeqStringOperand(string, instr->index(), encoding); 2014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 2015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(result, operand); 2016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrh(result, operand); 2018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2019b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2020b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2021b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) { 2023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String::Encoding encoding = instr->hydrogen()->encoding(); 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register string = ToRegister(instr->string()); 2025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 2026b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2027b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_debug_code) { 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; 2030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int encoding_mask = 2032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->encoding() == String::ONE_BYTE_ENCODING 2033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? one_byte_seq_type : two_byte_seq_type; 2034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EmitSeqStringSetCharCheck(string, index, value, encoding_mask); 2035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = BuildSeqStringOperand(string, instr->index(), encoding); 2038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (encoding == String::ONE_BYTE_ENCODING) { 2039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ strb(value, operand); 2040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ strh(value, operand); 2042b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2044b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2045b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoAddI(LAddI* instr) { 2047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 2048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 20493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LOperand* result = instr->result(); 205044f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool can_overflow = instr->hydrogen()->CheckFlag(HValue::kCanOverflow); 205144f0eee88ff00398ff7f715fab053374d808c90dSteve Block SBit set_cond = can_overflow ? SetCC : LeaveCC; 2052b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right->IsStackSlot()) { 205444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register right_reg = EmitLoadRegister(right, ip); 20553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ add(ToRegister(result), ToRegister(left), Operand(right_reg), set_cond); 205644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(right->IsRegister() || right->IsConstantOperand()); 20583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ add(ToRegister(result), ToRegister(left), ToOperand(right), set_cond); 205944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 2060b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 206144f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (can_overflow) { 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathMinMax(LMathMinMax* instr) { 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HMathMinMax::Operation operation = instr->hydrogen()->operation(); 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsSmiOrInteger32()) { 2072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition condition = (operation == HMathMinMax::kMathMin) ? le : ge; 2073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left_reg = ToRegister(left); 2074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand right_op = (right->IsRegister() || right->IsConstantOperand()) 2075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? ToOperand(right) 2076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : Operand(EmitLoadRegister(right, ip)); 2077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 2078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(left_reg, right_op); 2079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg, condition); 2080b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, right_op, LeaveCC, NegateCondition(condition)); 2081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->representation().IsDouble()); 2083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister left_reg = ToDoubleRegister(left); 2084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister right_reg = ToDoubleRegister(right); 2085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(instr->result()); 2086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label result_is_nan, return_left, return_right, check_zero, done; 2087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(left_reg, right_reg); 2088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation == HMathMinMax::kMathMin) { 2089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(mi, &return_left); 2090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(gt, &return_right); 2091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(mi, &return_right); 2093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(gt, &return_left); 2094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(vs, &result_is_nan); 2096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Left equals right => check for -0. 2097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(left_reg, 0.0); 2098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (left_reg.is(result_reg) || right_reg.is(result_reg)) { 2099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); // left == right != 0. 2100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &return_left); // left == right != 0. 2102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // At this point, both left and right are either 0 or -0. 2104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (operation == HMathMinMax::kMathMin) { 2105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We could use a single 'vorr' instruction here if we had NEON support. 2106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vneg(left_reg, left_reg); 2107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vsub(result_reg, left_reg, right_reg); 2108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vneg(result_reg, result_reg); 2109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Since we operate on +0 and/or -0, vadd and vand have the same effect; 2111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the decision for vadd is easy because vand is a NEON instruction. 2112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(result_reg, left_reg, right_reg); 2113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 2115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_is_nan); 2117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(result_reg, left_reg, right_reg); 2118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 2119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&return_right); 2121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, right_reg); 2122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!left_reg.is(result_reg)) { 2123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 2124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&return_left); 2127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(result_reg, left_reg); 2128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 2130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2131b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2132b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2133b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArithmeticD(LArithmeticD* instr) { 2135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister left = ToDoubleRegister(instr->left()); 2136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister right = ToDoubleRegister(instr->right()); 2137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 2138b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (instr->op()) { 2139b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::ADD: 21403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vadd(result, left, right); 2141b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2142b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::SUB: 21433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsub(result, left, right); 2144b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2145b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::MUL: 21463fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vmul(result, left, right); 2147b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2148b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::DIV: 21493fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vdiv(result, left, right); 2150b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::MOD: { 2152257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ PrepareCallCFunction(0, 2, scratch0()); 2153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovToFloatParameters(left, right); 215444f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ CallCFunction( 2155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalReference::mod_two_doubles_operation(isolate()), 2156257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 0, 2); 21571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Move the result in the double result register. 2158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovFromFloatResult(result); 2159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2160b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2161b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 2162b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2163b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2164b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2165b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2167b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArithmeticT(LArithmeticT* instr) { 2169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->left()).is(r1)); 2171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->right()).is(r0)); 2172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 2173b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> code = 2175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeFactory::BinaryOpIC(isolate(), instr->op(), NO_OVERWRITE).code(); 2176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission to ensure nop indicating no inlined smi code 2177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is in the correct position. 2178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 2179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(code, RelocInfo::CODE_TARGET, instr); 2180b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2181b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2182b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochtemplate<class InstrType> 2184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitBranch(InstrType instr, Condition condition) { 2185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int left_block = instr->TrueDestination(chunk_); 2186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int right_block = instr->FalseDestination(chunk_); 2187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int next_block = GetNextEmittedBlock(); 2189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (right_block == left_block || condition == al) { 2191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch EmitGoto(left_block); 2192b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (left_block == next_block) { 2193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(NegateCondition(condition), chunk_->GetAssemblyLabel(right_block)); 2194b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (right_block == next_block) { 2195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(left_block)); 2196b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(left_block)); 2198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(chunk_->GetAssemblyLabel(right_block)); 2199b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2200b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2201b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochtemplate<class InstrType> 2204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitFalseBranch(InstrType instr, Condition condition) { 2205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int false_block = instr->FalseDestination(chunk_); 2206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(condition, chunk_->GetAssemblyLabel(false_block)); 2207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDebugBreak(LDebugBreak* instr) { 2211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("LBreak"); 2212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2214b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoBranch(LBranch* instr) { 22163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Representation r = instr->hydrogen()->value()->representation(); 2217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r.IsInteger32() || r.IsSmi()) { 2218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2222b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else if (r.IsDouble()) { 2223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister reg = ToDoubleRegister(instr->value()); 2225b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Test the double value. Zero and NaN are false. 2226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(reg, 0.0); 2227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN -> false) 2228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2229b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(r.IsTagged()); 2231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 223269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HType type = instr->hydrogen()->value()->type(); 223369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (type.IsBoolean()) { 2234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 223569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kTrueValueRootIndex); 2236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 223769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else if (type.IsSmi()) { 2238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsJSArray()) { 2242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, al); 2244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsHeapNumber()) { 2245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch = double_scratch0(); 2247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); 2248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Test the double value. Zero and NaN are false. 2249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(dbl_scratch, 0.0); 2250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // If NaN, set the Z flag. (NaN) 2251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (type.IsString()) { 2253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!info()->IsStub()); 2254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); 2255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand::Zero()); 2256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2257b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 225869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); 225969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Avoid deopts in the case where we've never executed this path before. 2260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic(); 226169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 226269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::UNDEFINED)) { 226369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // undefined -> false. 226469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kUndefinedValueRootIndex); 2265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 226669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 226769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::BOOLEAN)) { 226869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Boolean -> its value. 226969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kTrueValueRootIndex); 2270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->TrueLabel(chunk_)); 227169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kFalseValueRootIndex); 2272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 227369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 227469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::NULL_TYPE)) { 227569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // 'null' -> false. 227669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(reg, Heap::kNullValueRootIndex); 2277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 227869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 227969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 228069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::SMI)) { 228169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Smis: 0 -> false, all other -> true. 2282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand::Zero()); 2283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); 2284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(reg, instr->TrueLabel(chunk_)); 228569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } else if (expected.NeedsMap()) { 228669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // If we need a map later and have a Smi -> deopt. 2287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(reg); 2288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 228969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 229069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 229169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch const Register map = scratch0(); 229269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.NeedsMap()) { 229369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldr(map, FieldMemOperand(reg, HeapObject::kMapOffset)); 229469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 229569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.CanBeUndetectable()) { 229669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Undetectable -> false. 229769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldrb(ip, FieldMemOperand(map, Map::kBitFieldOffset)); 229869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ tst(ip, Operand(1 << Map::kIsUndetectable)); 2299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, instr->FalseLabel(chunk_)); 230069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 230169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 230269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 230369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { 230469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // spec object -> true. 230569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareInstanceType(map, ip, FIRST_SPEC_OBJECT_TYPE); 2306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ge, instr->TrueLabel(chunk_)); 230769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 230869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 230969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::STRING)) { 231069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // String value -> false iff empty. 231169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Label not_string; 231269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareInstanceType(map, ip, FIRST_NONSTRING_TYPE); 231369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ b(ge, ¬_string); 231469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ ldr(ip, FieldMemOperand(reg, String::kLengthOffset)); 2315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand::Zero()); 2316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, instr->TrueLabel(chunk_)); 2317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(instr->FalseLabel(chunk_)); 231869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ bind(¬_string); 231969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 232069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (expected.Contains(ToBooleanStub::SYMBOL)) { 2322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Symbol value -> true. 2323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareInstanceType(map, ip, SYMBOL_TYPE); 2324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->TrueLabel(chunk_)); 2325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 232769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { 232869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // heap number -> false iff +0, -0, or NaN. 2329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dbl_scratch = double_scratch0(); 233069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Label not_heap_number; 233169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ CompareRoot(map, Heap::kHeapNumberMapRootIndex); 233269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ b(ne, ¬_heap_number); 233369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ vldr(dbl_scratch, FieldMemOperand(reg, HeapNumber::kValueOffset)); 233469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ VFPCompareAndSetFlags(dbl_scratch, 0.0); 2335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, r0, vs); // NaN -> false. 2336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, instr->FalseLabel(chunk_)); // +0, -0 -> false. 2337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(instr->TrueLabel(chunk_)); 233869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch __ bind(¬_heap_number); 233969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 234069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!expected.IsGeneric()) { 2342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We've seen something for the first time -> deopt. 2343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This can only happen if we are not generic already. 2344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 2345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2346b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2347b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2348b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2349b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2350b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 23513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::EmitGoto(int block) { 2352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!IsNextEmittedBlock(block)) { 2353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(chunk_->GetAssemblyLabel(LookupDestination(block))); 2354b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2355b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2356b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2357b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2358b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoGoto(LGoto* instr) { 23593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch EmitGoto(instr->block_id()); 2360b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2361b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2362b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2363b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochCondition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { 23641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition cond = kNoCondition; 2365b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch switch (op) { 2366b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::EQ: 2367b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::EQ_STRICT: 2368b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = eq; 2369b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::NE: 2371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case Token::NE_STRICT: 2372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cond = ne; 2373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 2374b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::LT: 2375b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? lo : lt; 2376b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2377b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::GT: 2378b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? hi : gt; 2379b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2380b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::LTE: 2381b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? ls : le; 2382b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2383b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::GTE: 2384b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch cond = is_unsigned ? hs : ge; 2385b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch break; 2386b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::IN: 2387b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch case Token::INSTANCEOF: 2388b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch default: 2389b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2390b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2391b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return cond; 2392b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2393b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2394b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) { 2396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* left = instr->left(); 2397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* right = instr->right(); 2398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_unsigned = 2399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->left()->CheckFlag(HInstruction::kUint32) || 2400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->right()->CheckFlag(HInstruction::kUint32); 2401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition cond = TokenToCondition(instr->op(), is_unsigned); 24023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (left->IsConstantOperand() && right->IsConstantOperand()) { 24043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We can statically evaluate the comparison. 24053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double left_val = ToDouble(LConstantOperand::cast(left)); 24063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch double right_val = ToDouble(LConstantOperand::cast(right)); 2407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int next_block = EvalComparison(instr->op(), left_val, right_val) ? 2408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_); 24093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmitGoto(next_block); 24101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 24113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->is_double()) { 24123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Compare left and right operands as doubles and load the 24133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // resulting flags into the normal status register. 24143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ VFPCompareAndSetFlags(ToDoubleRegister(left), ToDoubleRegister(right)); 24153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If a NaN is involved, i.e. the result is unordered (V set), 24163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // jump to false block label. 2417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(vs, instr->FalseLabel(chunk_)); 24183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 24193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (right->IsConstantOperand()) { 2420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = ToInteger32(LConstantOperand::cast(right)); 2421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi()) { 2422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(left), Operand(Smi::FromInt(value))); 2423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(left), Operand(value)); 2425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 24263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (left->IsConstantOperand()) { 2427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t value = ToInteger32(LConstantOperand::cast(left)); 2428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen_value()->representation().IsSmi()) { 2429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(right), Operand(Smi::FromInt(value))); 2430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ToRegister(right), Operand(value)); 2432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We commuted the operands, so commute the condition. 2434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cond = CommuteCondition(cond); 24353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 24363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(ToRegister(left), ToRegister(right)); 24373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 24383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, cond); 24401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 2441b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 24443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { 2445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register left = ToRegister(instr->left()); 2446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register right = ToRegister(instr->right()); 24471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 24481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(left, Operand(right)); 2449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) { 2454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsTagged()) { 2455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = ToRegister(instr->object()); 2456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(factory()->the_hole_value())); 2457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, ip); 2458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 2460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2461257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->object()); 2463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(input_reg, input_reg); 2464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitFalseBranch(instr, vc); 2465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 2467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, input_reg); 2468b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(kHoleNanUpper32)); 2469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2470257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2471257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2472257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2473b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) { 2474b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation rep = instr->hydrogen()->value()->representation(); 2475b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!rep.IsInteger32()); 2476b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = ToRegister(instr->temp()); 2477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (rep.IsDouble()) { 2479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 2480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(value, 0.0); 2481b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitFalseBranch(instr, ne); 2482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, value); 2483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(0x80000000)); 2484b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 2485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 2486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CheckMap(value, 2487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 2488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap::kHeapNumberMapRootIndex, 2489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->FalseLabel(chunk()), 2490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DO_SMI_CHECK); 2491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(value, HeapNumber::kExponentOffset)); 2492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(value, HeapNumber::kMantissaOffset)); 2493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(0x80000000)); 2494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(ip, Operand(0x00000000), eq); 2495b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2497b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2498b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2499b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2500b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochCondition LCodeGen::EmitIsObject(Register input, 2501b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register temp1, 2502b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* is_not_object, 2503b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* is_object) { 25043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register temp2 = scratch0(); 25051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ JumpIfSmi(input, is_not_object); 25061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 25073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ LoadRoot(temp2, Heap::kNullValueRootIndex); 25083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(input, temp2); 25091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, is_object); 25101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 25111e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Load map. 25121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(temp1, FieldMemOperand(input, HeapObject::kMapOffset)); 25131e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Undetectable objects behave like undefined. 25141e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldrb(temp2, FieldMemOperand(temp1, Map::kBitFieldOffset)); 25151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ tst(temp2, Operand(1 << Map::kIsUndetectable)); 25161e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(ne, is_not_object); 25171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 25181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Load instance type and check that it is in object type range. 25191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldrb(temp2, FieldMemOperand(temp1, Map::kInstanceTypeOffset)); 25203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); 25211e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(lt, is_not_object); 25223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE)); 25231e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block return le; 2524b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2525b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2526b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2527b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) { 2528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 25301e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 25311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition true_cond = 2532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitIsObject(reg, temp1, 2533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->FalseLabel(chunk_), instr->TrueLabel(chunk_)); 25341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 2535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, true_cond); 2536b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2537b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2538b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 25393ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochCondition LCodeGen::EmitIsString(Register input, 25403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register temp1, 2541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* is_not_string, 2542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = INLINE_SMI_CHECK) { 2543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (check_needed == INLINE_SMI_CHECK) { 2544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, is_not_string); 2545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 25463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareObjectType(input, temp1, temp1, FIRST_NONSTRING_TYPE); 25473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return lt; 25493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 25503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { 2553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 25553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = 2557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 2558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 25593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Condition true_cond = 2560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitIsString(reg, temp1, instr->FalseLabel(chunk_), check_needed); 25613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, true_cond); 25633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 25643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2566b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { 2567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = EmitLoadRegister(instr->value(), ip); 2568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(input_reg); 2569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2570b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2571b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2572b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2573257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { 2574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 2576257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 2578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, instr->FalseLabel(chunk_)); 2579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2580257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(temp, FieldMemOperand(input, HeapObject::kMapOffset)); 2581257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrb(temp, FieldMemOperand(temp, Map::kBitFieldOffset)); 2582257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ tst(temp, Operand(1 << Map::kIsUndetectable)); 2583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, ne); 2584257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 2585257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 2586257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 25873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochstatic Condition ComputeCompareCondition(Token::Value op) { 25883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch switch (op) { 25893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::EQ_STRICT: 25903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::EQ: 25913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return eq; 25923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::LT: 25933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return lt; 25943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::GT: 25953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return gt; 25963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::LTE: 25973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return le; 25983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case Token::GTE: 25993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return ge; 26003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch default: 26013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch UNREACHABLE(); 26023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return kNoCondition; 26033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 26043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 26053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { 2608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 26093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Token::Value op = instr->op(); 26103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); 26123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 2613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This instruction also signals no smi code inlined. 2614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, Operand::Zero()); 26153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Condition condition = ComputeCompareCondition(op); 26173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, condition); 26193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 26203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochstatic InstanceType TestType(HHasInstanceTypeAndBranch* instr) { 26231e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType from = instr->from(); 26241e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType to = instr->to(); 2625b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == FIRST_TYPE) return to; 2626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(from == to || to == LAST_TYPE); 2627b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return from; 2628b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochstatic Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { 26321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType from = instr->from(); 26331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceType to = instr->to(); 2634b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == to) return eq; 2635b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (to == LAST_TYPE) return hs; 2636b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (from == FIRST_TYPE) return ls; 2637b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch UNREACHABLE(); 2638b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return eq; 2639b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { 26439fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 2644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2646b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 2647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, instr->FalseLabel(chunk_)); 2648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2649b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 26501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ CompareObjectType(input, scratch, scratch, TestType(instr->hydrogen())); 2651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, BranchCondition(instr->hydrogen())); 2652b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2653b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2654b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2655e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { 2656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2657e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register result = ToRegister(instr->result()); 2658e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertString(input); 2660e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2661e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(result, FieldMemOperand(input, String::kHashFieldOffset)); 2662e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ IndexFromHash(result, result); 2663e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 2664e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2665e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2666b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoHasCachedArrayIndexAndBranch( 2667b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LHasCachedArrayIndexAndBranch* instr) { 2668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2669e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register scratch = scratch0(); 2670e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2671e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(scratch, 2672e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch FieldMemOperand(input, String::kHashFieldOffset)); 2673e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ tst(scratch, Operand(String::kContainsCachedArrayIndexMask)); 2674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2675b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2676b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2677b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2678b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch// Branches to a label or falls through with the answer in flags. Trashes 26793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// the temp registers, but not the input. 2680b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::EmitClassOfTest(Label* is_true, 2681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* is_false, 2682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<String>class_name, 2683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input, 2684b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register temp, 2685b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register temp2) { 2686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(temp)); 2687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!input.is(temp2)); 2688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp.is(temp2)); 26893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ JumpIfSmi(input, is_false); 2691b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (String::Equals(isolate()->factory()->Function_string(), class_name)) { 26933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Assuming the following assertions, we can use the same compares to test 26943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // for both being a function type and being in the object type range. 26953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); 26963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == 26973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FIRST_SPEC_OBJECT_TYPE + 1); 26983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == 26993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LAST_SPEC_OBJECT_TYPE - 1); 27003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE); 27013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareObjectType(input, temp, temp2, FIRST_SPEC_OBJECT_TYPE); 27023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(lt, is_false); 27033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(eq, is_true); 27043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(temp2, Operand(LAST_SPEC_OBJECT_TYPE)); 27053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(eq, is_true); 2706b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 27073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Faster code path to avoid two compares: subtract lower bound from the 27083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // actual type and do a signed compare with the width of the type range. 27093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(temp, FieldMemOperand(input, HeapObject::kMapOffset)); 27103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldrb(temp2, FieldMemOperand(temp, Map::kInstanceTypeOffset)); 27113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ sub(temp2, temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); 27123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - 27133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); 27143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(gt, is_false); 2715b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 2716b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 27173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. 2718b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Check if the constructor in the map is a function. 2719b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(temp, FieldMemOperand(temp, Map::kConstructorOffset)); 2720b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2721b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Objects with a non-function constructor have class 'Object'. 2722b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ CompareObjectType(temp, temp2, temp2, JS_FUNCTION_TYPE); 2723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (class_name->IsOneByteEqualTo(STATIC_CHAR_VECTOR("Object"))) { 2724b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, is_true); 2725b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 2726b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, is_false); 2727b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 2728b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2729b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // temp now contains the constructor function. Grab the 2730b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // instance class name from there. 2731b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(temp, FieldMemOperand(temp, JSFunction::kSharedFunctionInfoOffset)); 2732b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(temp, FieldMemOperand(temp, 2733b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch SharedFunctionInfo::kInstanceClassNameOffset)); 2734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The class name we are testing against is internalized since it's a literal. 2735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The name in the constructor is internalized because of the way the context 2736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // is booted. This routine isn't expected to work for random API-created 2737b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // classes and it doesn't have to because you can't access it with natives 2738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // syntax. Since both sides are internalized it is sufficient to use an 2739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // identity comparison. 2740b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(temp, Operand(class_name)); 2741b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // End with the answer in flags. 2742b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2743b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2745b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { 2746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 2747b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register temp = scratch0(); 2748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp()); 2749b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Handle<String> class_name = instr->hydrogen()->class_name(); 2750b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitClassOfTest(instr->TrueLabel(chunk_), instr->FalseLabel(chunk_), 2752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class_name, input, temp, temp2); 2753b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 2754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2755b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2756b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2757b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2758b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { 2759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->value()); 2760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 27619fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 27629fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(temp, FieldMemOperand(reg, HeapObject::kMapOffset)); 27639fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ cmp(temp, Operand(instr->map())); 2764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 2765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2766b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2767b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2768b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoInstanceOf(LInstanceOf* instr) { 2769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->left()).is(r0)); // Object is in r0. 2771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->right()).is(r1)); // Function is in r1. 27729fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 2773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceofStub stub(isolate(), InstanceofStub::kArgsInRegisters); 2774b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 2775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, Operand::Zero()); 277744f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ mov(r0, Operand(factory()->false_value()), LeaveCC, ne); 277844f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ mov(r0, Operand(factory()->true_value()), LeaveCC, eq); 2779b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2782086aeeaae12517475c22695a200be45495516549Ben Murdochvoid LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { 2783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredInstanceOfKnownGlobal FINAL : public LDeferredCode { 27841e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block public: 27851e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredInstanceOfKnownGlobal(LCodeGen* codegen, 27861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LInstanceOfKnownGlobal* instr) 27871e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block : LDeferredCode(codegen), instr_(instr) { } 2788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 2789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_, 2790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &load_bool_); 27911e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 2792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 27931e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label* map_check() { return &map_check_; } 2794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* load_bool() { return &load_bool_; } 2795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 27961e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block private: 27971e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LInstanceOfKnownGlobal* instr_; 27981e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label map_check_; 2799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label load_bool_; 28001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block }; 28011e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28021e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredInstanceOfKnownGlobal* deferred; 2803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deferred = new(zone()) DeferredInstanceOfKnownGlobal(this, instr); 28041e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label done, false_result; 2806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->value()); 2807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 28081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 28091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // A Smi is not instance of anything. 28111e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ JumpIfSmi(object, &false_result); 28121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28131e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // This is the inlined call site instanceof cache. The two occurences of the 28141e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // hole value will be patched to the last map/result pair generated by the 28151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // instanceof stub. 28161e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label cache_miss; 28171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register map = temp; 28181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(map, FieldMemOperand(object, HeapObject::kMapOffset)); 2819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 2820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block constant pool emission to ensure the positions of instructions are 2821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // as expected by the patcher. See InstanceofStub::Generate(). 2822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 2823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->map_check()); // Label for calculating code patching. 2824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We use Factory::the_hole_value() on purpose instead of loading from the 2825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // root array to force relocation to be able to later patch with 2826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the cached map. 2827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Cell> cell = factory()->NewCell(factory()->the_hole_value()); 2828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(Handle<Object>(cell))); 2829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(ip, PropertyCell::kValueOffset)); 2830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(map, Operand(ip)); 2831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &cache_miss); 2832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->load_bool()); // Label for calculating code patching. 2833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We use Factory::the_hole_value() on purpose instead of loading from the 2834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // root array to force relocation to be able to later patch 2835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with true or false. 2836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(factory()->the_hole_value())); 2837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 28381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(&done); 28391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // The inlined call site cache did not match. Check null and string before 28411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // calling the deferred code. 28421e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&cache_miss); 28431e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Null is not instance of anything. 28441e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ LoadRoot(ip, Heap::kNullValueRootIndex); 28451e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(object, Operand(ip)); 28461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &false_result); 28471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // String values is not instance of anything. 28491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition is_string = masm_->IsObjectStringType(object, temp); 28501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(is_string, &false_result); 28511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28521e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Go to the deferred code. 28531e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(deferred->entry()); 28541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&false_result); 28561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ LoadRoot(result, Heap::kFalseValueRootIndex); 28571e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28581e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Here result has either true or false. Deferred code also produces true or 28591e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // false object. 28601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(deferred->exit()); 28611e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&done); 28621e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 28631e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 28652b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdochvoid LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, 2866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* map_check, 2867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* bool_load) { 28681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block InstanceofStub::Flags flags = InstanceofStub::kNoFlags; 28691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags = static_cast<InstanceofStub::Flags>( 28701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags | InstanceofStub::kArgsInRegisters); 28711e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags = static_cast<InstanceofStub::Flags>( 28721e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags | InstanceofStub::kCallSiteInlineCheck); 28731e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags = static_cast<InstanceofStub::Flags>( 28741e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block flags | InstanceofStub::kReturnTrueFalseObject); 2875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch InstanceofStub stub(isolate(), flags); 2876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 2878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadContextFromDeferred(instr->context()); 2879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(InstanceofStub::right(), instr->function()); 2881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int call_size = CallCodeSize(stub.GetCode(), RelocInfo::CODE_TARGET); 2883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int additional_delta = (call_size / Assembler::kInstrSize) + 4; 2884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Make sure that code size is predicable, since we use specific constants 2885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // offsets in the code to find embedded values.. 2886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PredictableCodeSizeScope predictable( 2887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm_, (additional_delta + 1) * Assembler::kInstrSize); 2888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Make sure we don't emit any additional entries in the constant pool before 2889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the call to ensure that the CallCodeSize() calculated the correct number of 2890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instructions for the constant pool load. 2891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 2892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ConstantPoolUnavailableScope constant_pool_unavailable(masm_); 2893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int map_check_delta = 2894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm_->InstructionsGeneratedSince(map_check) + additional_delta; 2895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int bool_load_delta = 2896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm_->InstructionsGeneratedSince(bool_load) + additional_delta; 2897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label before_push_delta; 2898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&before_push_delta); 2899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ BlockConstPoolFor(additional_delta); 2900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r5 is used to communicate the offset to the location of the map check. 2901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r5, Operand(map_check_delta * kPointerSize)); 2902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r6 is used to communicate the offset to the location of the bool load. 2903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r6, Operand(bool_load_delta * kPointerSize)); 2904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The mov above can generate one or two instructions. The delta was 2905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // computed for two instructions, so we need to pad here in case of one 2906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction. 2907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (masm_->InstructionsGeneratedSince(&before_push_delta) != 4) { 2908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); 2909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 29118b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch CallCodeGeneric(stub.GetCode(), 29128b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RelocInfo::CODE_TARGET, 29138b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch instr, 29148b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 2915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LEnvironment* env = instr->GetDeferredLazyDeoptimizationEnvironment(); 29162b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 2917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Put the result value (r0) into the result register slot and 29181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // restore all registers. 2919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, ToRegister(instr->result())); 2920086aeeaae12517475c22695a200be45495516549Ben Murdoch} 2921086aeeaae12517475c22695a200be45495516549Ben Murdoch 2922b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2923b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCmpT(LCmpT* instr) { 2924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 2925b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Token::Value op = instr->op(); 2926b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); 2928b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 2929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This instruction also signals no smi code inlined. 2930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r0, Operand::Zero()); 2931b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2932b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Condition condition = ComputeCompareCondition(op); 2933b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(ToRegister(instr->result()), 2934b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Heap::kTrueValueRootIndex, 2935b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch condition); 2936b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(ToRegister(instr->result()), 2937b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Heap::kFalseValueRootIndex, 2938b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch NegateCondition(condition)); 2939b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2940b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2941b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2942b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoReturn(LReturn* instr) { 2943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace && info()->IsOptimizing()) { 2944b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Push the return value on the stack as the parameter. 2945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Runtime::TraceExit returns its parameter in r0. We're leaving the code 2946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // managed by the register allocator and tearing down the frame, it's 2947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // safe to write to the context register. 2948b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ push(r0); 2949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 2950b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ CallRuntime(Runtime::kTraceExit, 1); 2951b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->saves_caller_doubles()) { 2953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RestoreCallerDoubles(); 2954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int no_frame_start = -1; 2956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (NeedsEagerFrame()) { 2957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch no_frame_start = masm_->LeaveFrame(StackFrame::JAVA_SCRIPT); 2958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { ConstantPoolUnavailableScope constant_pool_unavailable(masm()); 2960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->has_constant_parameter_count()) { 2961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int parameter_count = ToInteger32(instr->constant_parameter_count()); 2962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t sp_delta = (parameter_count + 1) * kPointerSize; 2963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (sp_delta != 0) { 2964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(sp, sp, Operand(sp_delta)); 2965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 2967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register reg = ToRegister(instr->parameter_count()); 2968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The argument count parameter is a smi 2969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(reg); 2970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(sp, sp, Operand(reg, LSL, kPointerSizeLog2)); 2971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Jump(lr); 2974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (no_frame_start != -1) { 2976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); 2977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2979b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2980b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2981b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 29828b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { 2983b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register result = ToRegister(instr->result()); 2984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(ip, Operand(Handle<Object>(instr->hydrogen()->cell().handle()))); 2985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, FieldMemOperand(ip, Cell::kValueOffset)); 29863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 2987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 2988b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ cmp(result, ip); 2989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 2990b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 2991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 2992b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2993b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 2994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochtemplate <class T> 2995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitVectorLoadICRegisters(T* instr) { 2996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(FLAG_vector_ics); 2997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register vector = ToRegister(instr->temp_vector()); 2998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(vector.is(VectorLoadICDescriptor::VectorRegister())); 2999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(vector, instr->hydrogen()->feedback_vector()); 3000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // No need to allocate this register. 3001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(VectorLoadICDescriptor::SlotRegister().is(r0)); 3002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(VectorLoadICDescriptor::SlotRegister(), 3003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(Smi::FromInt(instr->hydrogen()->slot()))); 3004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 30078b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { 3008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->global_object()) 3010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .is(LoadDescriptor::ReceiverRegister())); 3011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 30128b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 3013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(LoadDescriptor::NameRegister(), Operand(instr->name())); 3014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_vector_ics) { 3015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr); 3016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL; 3018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = CodeFactory::LoadIC(isolate(), mode).code(); 3019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr); 30208b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 30218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 30228b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 30238b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochvoid LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { 30243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register value = ToRegister(instr->value()); 30253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register cell = scratch0(); 30261e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30271e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Load the cell. 3028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cell, Operand(instr->hydrogen()->cell().handle())); 30291e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30301e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // If the cell we are storing to contains the hole it could have 30311e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // been deleted from the property dictionary. In that case, we need 30321e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // to update the property details in the property dictionary to mark 30331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // it as no longer deleted. 30343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 30353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We use a temp to check the payload (CompareRoot might clobber ip). 3036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register payload = ToRegister(instr->temp()); 3037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(payload, FieldMemOperand(cell, Cell::kValueOffset)); 30383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareRoot(payload, Heap::kTheHoleValueRootIndex); 3039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 30401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 30411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 30421e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Store the value. 3043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(value, FieldMemOperand(cell, Cell::kValueOffset)); 30443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Cells are always rescanned, so no write barrier here. 3045b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3048b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdochvoid LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { 30491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register context = ToRegister(instr->context()); 3050b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register result = ToRegister(instr->result()); 3051e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ ldr(result, ContextOperand(context, instr->slot_index())); 30523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 30533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 30543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(result, ip); 30553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->DeoptimizesOnHole()) { 3056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 30573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 30583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(result, Operand(factory()->undefined_value()), LeaveCC, eq); 30593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3061b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch} 3062b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3063b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 30641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { 30651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register context = ToRegister(instr->context()); 30661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register value = ToRegister(instr->value()); 30673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 30683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MemOperand target = ContextOperand(context, instr->slot_index()); 30693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label skip_assignment; 30713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 30733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch, target); 30743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 30753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(scratch, ip); 30763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->DeoptimizesOnHole()) { 3077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 30783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 30793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(ne, &skip_assignment); 30803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3081c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch } 30823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(value, target); 30843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 30853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SmiCheck check_needed = 3086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 3087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 30883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteContextSlot(context, 30893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch target.offset(), 30903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 30913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch scratch, 3092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 30933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 30943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 30953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch check_needed); 30963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 30973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&skip_assignment); 30991e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 31001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 31011e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3102b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { 3103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = instr->hydrogen()->access(); 3104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = access.offset(); 3105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->object()); 3106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsExternalMemory()) { 3108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = MemOperand(object, offset); 3110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Load(result, operand, access.representation()); 3111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 3112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->representation().IsDouble()) { 3115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, FieldMemOperand(object, offset)); 3117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 3118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 31209fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register result = ToRegister(instr->result()); 3121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!access.IsInobject()) { 31229fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); 3123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object = result; 312444f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 3125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(object, offset); 3126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Load(result, operand, access.representation()); 312744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 312844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 312944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3130b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { 3131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); 3133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3135b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Name is always in r2. 3136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(LoadDescriptor::NameRegister(), Operand(instr->name())); 3137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_vector_ics) { 3138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr); 3139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = CodeFactory::LoadIC(isolate(), NOT_CONTEXTUAL).code(); 3141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 3142b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3143b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3144b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 31459fac840a46e8b7e26894f4792ba26dde14c56b04Steve Blockvoid LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { 31469fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 31479fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register function = ToRegister(instr->function()); 31489fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register result = ToRegister(instr->result()); 31499fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31509fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Get the prototype or initial map from the function. 31519fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, 31529fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block FieldMemOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); 31539fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31549fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Check that the function has a prototype or an initial map. 31559fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); 31569fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ cmp(result, ip); 3157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 31589fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31599fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // If the function does not have an initial map, we're done. 31609fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Label done; 31619fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ CompareObjectType(result, scratch, scratch, MAP_TYPE); 31629fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ b(ne, &done); 31639fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31649fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // Get the prototype from the initial map. 31659fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ ldr(result, FieldMemOperand(result, Map::kPrototypeOffset)); 31669fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31679fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block // All done. 31689fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block __ bind(&done); 31699fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block} 31709fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 31719fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 3172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadRoot(LLoadRoot* instr) { 31731e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(result, instr->index()); 31751e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 31761e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 31771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3178b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { 3179086aeeaae12517475c22695a200be45495516549Ben Murdoch Register arguments = ToRegister(instr->arguments()); 3180086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 3181086aeeaae12517475c22695a200be45495516549Ben Murdoch // There are two words between the frame pointer and the last argument. 3182086aeeaae12517475c22695a200be45495516549Ben Murdoch // Subtracting from length accounts for one of them add one more. 3183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->length()->IsConstantOperand()) { 3184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_length = ToInteger32(LConstantOperand::cast(instr->length())); 3185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->index()->IsConstantOperand()) { 3186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 3187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = (const_length - const_index) + 1; 3188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, index * kPointerSize)); 3189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 3191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, index, Operand(const_length + 1)); 3192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 31933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 3194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->index()->IsConstantOperand()) { 3195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 3196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 3197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int loc = const_index - 1; 3198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (loc != 0) { 3199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, length, Operand(loc)); 3200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 3201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, length, LSL, kPointerSizeLog2)); 3203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 3206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 3207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, length, index); 3208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, result, Operand(1)); 3209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(arguments, result, LSL, kPointerSizeLog2)); 32103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 32113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 32123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 32133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) { 3215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register external_pointer = ToRegister(instr->elements()); 3216257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register key = no_reg; 3217589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch ElementsKind elements_kind = instr->elements_kind(); 3218257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 3219257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int constant_key = 0; 3220257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (key_is_constant) { 3221257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 3222257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (constant_key & 0xF0000000) { 3223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 3224257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 3225257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 3226257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch key = ToRegister(instr->key()); 3227257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 3228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(elements_kind); 3229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 3230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 3231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 3232257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || 3234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT32_ELEMENTS || 3235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == EXTERNAL_FLOAT64_ELEMENTS || 3236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT64_ELEMENTS) { 3237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 32383fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 32393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Operand operand = key_is_constant 3240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? Operand(constant_key << element_size_shift) 32413fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch : Operand(key, LSL, shift_size); 3242257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ add(scratch0(), external_pointer, operand); 3243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || 3244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT32_ELEMENTS) { 3245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(double_scratch0().low(), scratch0(), base_offset); 3246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_f32(result, double_scratch0().low()); 3247589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch } else { // i.e. elements_kind == EXTERNAL_DOUBLE_ELEMENTS 3248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, scratch0(), base_offset); 3249257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 32508b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else { 32513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 3252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand mem_operand = PrepareKeyedOperand( 3253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, external_pointer, key_is_constant, constant_key, 3254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch element_size_shift, shift_size, base_offset); 32553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch switch (elements_kind) { 3256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT8_ELEMENTS: 3257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT8_ELEMENTS: 3258257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrsb(result, mem_operand); 32598b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_CLAMPED_ELEMENTS: 3261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_ELEMENTS: 3262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_ELEMENTS: 3263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_CLAMPED_ELEMENTS: 3264257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrb(result, mem_operand); 32658b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT16_ELEMENTS: 3267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT16_ELEMENTS: 3268257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrsh(result, mem_operand); 32698b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT16_ELEMENTS: 3271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT16_ELEMENTS: 3272257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldrh(result, mem_operand); 32738b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT32_ELEMENTS: 3275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT32_ELEMENTS: 3276257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(result, mem_operand); 32778b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT32_ELEMENTS: 3279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT32_ELEMENTS: 3280257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(result, mem_operand); 3281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) { 3282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(0x80000000)); 3283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(cs, instr); 3284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 32858b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 3286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT32_ELEMENTS: 3287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT64_ELEMENTS: 3288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_FLOAT32_ELEMENTS: 3289b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_FLOAT64_ELEMENTS: 3290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_DOUBLE_ELEMENTS: 3291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_ELEMENTS: 3292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_SMI_ELEMENTS: 3293589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_DOUBLE_ELEMENTS: 3294589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_ELEMENTS: 3295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_SMI_ELEMENTS: 3296589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case DICTIONARY_ELEMENTS: 3297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SLOPPY_ARGUMENTS_ELEMENTS: 32988b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch UNREACHABLE(); 32998b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 33008b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 33018b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 33021e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 33031e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 33041e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) { 3306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 3307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 3308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = no_reg; 3309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 3311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); 3313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 3315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 3316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 3317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key & 0xF0000000) { 3318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 3319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3320b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset += constant_key * kDoubleSize; 3321b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(base_offset)); 3323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!key_is_constant) { 3325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key = ToRegister(instr->key()); 3326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 3327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 3328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, scratch, Operand(key, LSL, shift_size)); 3329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result, scratch, 0); 3332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 3334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, MemOperand(scratch, sizeof(kHoleNanLower32))); 3335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(kHoleNanUpper32)); 3336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 3337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) { 3342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 3343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 3345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register store_base = scratch; 3346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = instr->base_offset(); 3347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->key()->IsConstantOperand()) { 3349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); 3350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset += ToInteger32(const_operand) * kPointerSize; 3351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_base = elements; 3352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = ToRegister(instr->key()); 3354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Even though the HLoadKeyed instruction forces the input 3355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation for the key to be an integer, the input gets replaced 3356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // during bound check elimination with the index argument to the bounds 3357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check, which can be tagged, so that case must be handled here, too. 3358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->key()->representation().IsSmi()) { 3359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); 3360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); 3362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(store_base, offset)); 3365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for the hole value. 3367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->RequiresHoleCheck()) { 3368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) { 3369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(result); 3370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 3371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); 3373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, scratch); 3374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 3375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { 3381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->is_typed_elements()) { 3382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedExternalArray(instr); 3383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->representation().IsDouble()) { 3384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedFixedDoubleArray(instr); 3385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoLoadKeyedFixedArray(instr); 3387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochMemOperand LCodeGen::PrepareKeyedOperand(Register key, 3392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register base, 3393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant, 3394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key, 3395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size, 3396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size, 3397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset) { 3398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 3399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, (constant_key << element_size) + base_offset); 3400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base_offset == 0) { 3403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_size >= 0) { 3404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, key, LSL, shift_size); 3405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(-1, shift_size); 3407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(base, key, LSR, 1); 3408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (shift_size >= 0) { 3412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch0(), base, Operand(key, LSL, shift_size)); 3413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(scratch0(), base_offset); 3414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(-1, shift_size); 3416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch0(), base, Operand(key, ASR, 1)); 3417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return MemOperand(scratch0(), base_offset); 3418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3422b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { 3423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); 3425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->key()).is(LoadDescriptor::NameRegister())); 3426b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_vector_ics) { 3428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr); 3429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code(); 3432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 3433b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3434b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3435b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { 3437086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 3438086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 3439086aeeaae12517475c22695a200be45495516549Ben Murdoch 3440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->from_inlined()) { 3441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(result, sp, Operand(2 * kPointerSize)); 3442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check if the calling frame is an arguments adaptor frame. 3444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, adapted; 3445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 3446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(scratch, StandardFrameConstants::kContextOffset)); 3447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); 3448086aeeaae12517475c22695a200be45495516549Ben Murdoch 3449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Result is the frame pointer for the frame if not adapted and for the real 3450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // frame below the adaptor frame if adapted. 3451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, fp, LeaveCC, ne); 3452b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, scratch, LeaveCC, eq); 3453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3454b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3455b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3456b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { 3458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elem = ToRegister(instr->elements()); 3459086aeeaae12517475c22695a200be45495516549Ben Murdoch Register result = ToRegister(instr->result()); 3460086aeeaae12517475c22695a200be45495516549Ben Murdoch 3461086aeeaae12517475c22695a200be45495516549Ben Murdoch Label done; 3462086aeeaae12517475c22695a200be45495516549Ben Murdoch 3463086aeeaae12517475c22695a200be45495516549Ben Murdoch // If no arguments adaptor frame the number of arguments is fixed. 3464086aeeaae12517475c22695a200be45495516549Ben Murdoch __ cmp(fp, elem); 3465086aeeaae12517475c22695a200be45495516549Ben Murdoch __ mov(result, Operand(scope()->num_parameters())); 3466086aeeaae12517475c22695a200be45495516549Ben Murdoch __ b(eq, &done); 3467086aeeaae12517475c22695a200be45495516549Ben Murdoch 3468086aeeaae12517475c22695a200be45495516549Ben Murdoch // Arguments adaptor frame present. Get argument length from there. 3469086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(result, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 3470086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(result, 3471086aeeaae12517475c22695a200be45495516549Ben Murdoch MemOperand(result, ArgumentsAdaptorFrameConstants::kLengthOffset)); 3472086aeeaae12517475c22695a200be45495516549Ben Murdoch __ SmiUntag(result); 3473086aeeaae12517475c22695a200be45495516549Ben Murdoch 3474086aeeaae12517475c22695a200be45495516549Ben Murdoch // Argument length is in result register. 3475086aeeaae12517475c22695a200be45495516549Ben Murdoch __ bind(&done); 3476b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3477b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3478b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 34793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { 3480b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register receiver = ToRegister(instr->receiver()); 3481b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register function = ToRegister(instr->function()); 3482b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3483b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register scratch = scratch0(); 3484b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 34853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // If the receiver is null or undefined, we have to pass the global 34863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // object as a receiver to normal functions. Values have to be 34873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // passed unchanged to builtins and strict-mode functions. 3488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label global_object, result_in_receiver; 34893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->known_function()) { 3491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not transform the receiver to object for strict mode 3492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // functions. 3493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, 3494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset)); 3495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, 3496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(scratch, SharedFunctionInfo::kCompilerHintsOffset)); 3497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int mask = 1 << (SharedFunctionInfo::kStrictModeFunction + kSmiTagSize); 3498b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(mask)); 3499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &result_in_receiver); 35003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do not transform the receiver to object for builtins. 3502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << (SharedFunctionInfo::kNative + kSmiTagSize))); 3503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &result_in_receiver); 3504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 35053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 35063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Normal function. Replace undefined or null with global receiver. 3507b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(scratch, Heap::kNullValueRootIndex); 3508b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(receiver, scratch); 35091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &global_object); 3510b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ LoadRoot(scratch, Heap::kUndefinedValueRootIndex); 3511b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(receiver, scratch); 35121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &global_object); 3513b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 35141e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize if the receiver is not a JS object. 3515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(receiver); 3516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 35173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ CompareObjectType(receiver, scratch, scratch, FIRST_SPEC_OBJECT_TYPE); 3518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(lt, instr); 3519b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&result_in_receiver); 35211e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&global_object); 3522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, FieldMemOperand(function, JSFunction::kContextOffset)); 3523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, 3524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ContextOperand(result, Context::GLOBAL_OBJECT_INDEX)); 3525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, FieldMemOperand(result, GlobalObject::kGlobalProxyOffset)); 3526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (result.is(receiver)) { 3528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_in_receiver); 3529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label result_ok; 3531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&result_ok); 3532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_in_receiver); 3533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, receiver); 3534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&result_ok); 3535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 35363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 35373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 35393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoApplyArguments(LApplyArguments* instr) { 35403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register receiver = ToRegister(instr->receiver()); 35413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register function = ToRegister(instr->function()); 35423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register length = ToRegister(instr->length()); 35433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register elements = ToRegister(instr->elements()); 35443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 3545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(receiver.is(r0)); // Used for parameter count. 3546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(function.is(r1)); // Required by InvokeFunction. 3547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 3548b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3549b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Copy the arguments to this function possibly from the 3550b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // adaptor frame below it. 3551b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch const uint32_t kArgumentsLimit = 1 * KB; 3552b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ cmp(length, Operand(kArgumentsLimit)); 3553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(hi, instr); 3554b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3555b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Push the receiver and use the register to keep the original 3556b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // number of arguments. 3557b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ push(receiver); 3558b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ mov(receiver, length); 3559b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // The arguments are at a one pointer size offset from elements. 3560b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ add(elements, elements, Operand(1 * kPointerSize)); 3561b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3562b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // Loop through the arguments pushing them onto the execution 3563b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // stack. 35641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label invoke, loop; 3565b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch // length is a small non-negative integer, due to the test above. 3566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(length, Operand::Zero()); 3567b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(eq, &invoke); 3568b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ bind(&loop); 3569b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(scratch, MemOperand(elements, length, LSL, 2)); 3570b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ push(scratch); 3571b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ sub(length, length, Operand(1), SetCC); 3572b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ b(ne, &loop); 3573b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3574b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ bind(&invoke); 3575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasPointerMap()); 35761e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LPointerMap* pointers = instr->pointer_map(); 35772b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch SafepointGenerator safepoint_generator( 35782b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch this, pointers, Safepoint::kLazyDeopt); 35791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // The number of arguments is stored in receiver which is r0, as expected 35801e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // by InvokeFunction. 35813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ParameterCount actual(receiver); 3582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ InvokeFunction(function, actual, CALL_FUNCTION, safepoint_generator); 3583b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3584b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3585b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3586b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoPushArgument(LPushArgument* instr) { 3587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* argument = instr->value(); 3588b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (argument->IsDoubleRegister() || argument->IsDoubleStackSlot()) { 3589b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kDoPushArgumentNotImplementedForDoubleType); 3590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 3591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register argument_reg = EmitLoadRegister(argument, ip); 3592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ push(argument_reg); 3593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3596b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDrop(LDrop* instr) { 3598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Drop(instr->count()); 35993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 36003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 36013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoThisFunction(LThisFunction* instr) { 36031e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); 36051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 36061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36071e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoContext(LContext* instr) { 3609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If there is a non-return use, the context must be moved to a register. 36101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3611b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsOptimizing()) { 3612b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(result, MemOperand(fp, StandardFrameConstants::kContextOffset)); 3613b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If there is no frame, the context must be in cp. 3615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(result.is(cp)); 3616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 36171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 36181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { 3621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 36223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(cp); // The context is the first argument. 3623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(scratch0(), instr->hydrogen()->pairs()); 36243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(scratch0()); 36253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(scratch0(), Operand(Smi::FromInt(instr->hydrogen()->flags()))); 36263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(scratch0()); 36273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CallRuntime(Runtime::kDeclareGlobals, 3, instr); 36283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 36293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3631b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::CallKnownFunction(Handle<JSFunction> function, 3632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int formal_parameter_count, 3633b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int arity, 3634257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch LInstruction* instr, 3635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch R1State r1_state) { 3636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool dont_adapt_arguments = 3637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; 3638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_invoke_directly = 3639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch dont_adapt_arguments || formal_parameter_count == arity; 3640b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3641b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LPointerMap* pointers = instr->pointer_map(); 3642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 36433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (can_invoke_directly) { 3644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (r1_state == R1_UNINITIALIZED) { 3645b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(r1, function); 36463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3647b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Change context. 3649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); 3650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 36513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set r0 to arguments count if adaption is not needed. Assumes that r0 36523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // is available to write to at this point. 3653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dont_adapt_arguments) { 36543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(r0, Operand(arity)); 36553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 36563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Invoke function. 36583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(ip, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); 36593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ Call(ip); 36603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 36613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Set up deoptimization. 36623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 36633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 36643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 36653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ParameterCount count(arity); 3666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ParameterCount expected(formal_parameter_count); 3667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ InvokeFunction(function, expected, count, CALL_FUNCTION, generator); 36683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 3669b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) { 3673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->context() != NULL); 3674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 36763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 36771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch = scratch0(); 36781e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize if not a heap number. 36801e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 36811e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 36821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(scratch, Operand(ip)); 3683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 36841e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36851e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Label done; 36861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register exponent = scratch0(); 36871e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block scratch = no_reg; 36881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); 36891e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Check the sign of the argument. If the argument is positive, just 36903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // return it. 36911e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ tst(exponent, Operand(HeapNumber::kSignMask)); 36923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Move the input to the result if necessary. 36933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, input); 36941e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ b(eq, &done); 36951e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 36961e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Input is negative. Reverse its sign. 36971e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Preserve the value of all registers. 36988b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch { 3699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 37001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37018b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Registers were saved at the safepoint, so we can use 37028b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // many scratch registers. 37038b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp1 = input.is(r1) ? r0 : r1; 37048b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp2 = input.is(r2) ? r0 : r2; 37058b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp3 = input.is(r3) ? r0 : r3; 37068b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register tmp4 = input.is(r4) ? r0 : r4; 37071e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37088b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // exponent: floating point exponent value. 37091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37108b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Label allocated, slow; 37118b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ LoadRoot(tmp4, Heap::kHeapNumberMapRootIndex); 37128b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ AllocateHeapNumber(tmp1, tmp2, tmp3, tmp4, &slow); 37138b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ b(&allocated); 37141e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37158b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Slow case: Call the runtime system to do the number allocation. 37168b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bind(&slow); 37171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred(Runtime::kAllocateHeapNumber, 0, instr, 3719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->context()); 37208b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Set the pointer to the new heap number in tmp. 37218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch if (!tmp1.is(r0)) __ mov(tmp1, Operand(r0)); 37228b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // Restore input_reg after call to runtime. 37238b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ LoadFromSafepointRegisterSlot(input, input); 37248b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ ldr(exponent, FieldMemOperand(input, HeapNumber::kExponentOffset)); 37251e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37268b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bind(&allocated); 37278b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // exponent: floating point exponent value. 37288b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch // tmp1: allocated heap number. 37298b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ bic(exponent, exponent, Operand(HeapNumber::kSignMask)); 37308b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ str(exponent, FieldMemOperand(tmp1, HeapNumber::kExponentOffset)); 37318b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ ldr(tmp2, FieldMemOperand(input, HeapNumber::kMantissaOffset)); 37328b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch __ str(tmp2, FieldMemOperand(tmp1, HeapNumber::kMantissaOffset)); 37331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ StoreToSafepointRegisterSlot(tmp1, result); 37358b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 37361e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(&done); 37381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 37391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) { 3742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 37433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Register result = ToRegister(instr->result()); 3744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input, Operand::Zero()); 37453fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ Move(result, input, pl); 37461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // We can make rsb conditional because the previous cmp instruction 37471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // will clear the V (overflow) flag and rsb won't set this flag 37481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // if input is positive. 3749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ rsb(result, input, Operand::Zero(), SetCC, mi); 37501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Deoptimize on overflow. 3751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 3752b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3753b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3754b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathAbs(LMathAbs* instr) { 37561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Class for deferred case. 3757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredMathAbsTaggedHeapNumber FINAL : public LDeferredCode { 37581e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block public: 3759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, LMathAbs* instr) 37601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block : LDeferredCode(codegen), instr_(instr) { } 3761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 37621e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); 37631e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 3764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 37651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block private: 3766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LMathAbs* instr_; 37671e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block }; 37681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 37691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Representation r = instr->hydrogen()->value()->representation(); 37701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (r.IsDouble()) { 3771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 37723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 37733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vabs(result, input); 3774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (r.IsSmiOrInteger32()) { 37751e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block EmitIntegerMathAbs(instr); 37761e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 37771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Representation is tagged. 37781e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredMathAbsTaggedHeapNumber* deferred = 3779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); 3780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 37811e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Smi check. 37821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ JumpIfNotSmi(input, deferred->entry()); 37831e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // If smi, handle it directly. 37841e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block EmitIntegerMathAbs(instr); 37851e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(deferred->exit()); 37861e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 3787b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3788b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathFloor(LMathFloor* instr) { 3791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 37921e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 3793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_high = scratch0(); 3794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, exact; 37951e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 3796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryInt32Floor(result, input, input_high, double_scratch0(), &done, &exact); 3797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 3798b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch 3799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&exact); 380044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 380144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Test for -0. 3802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 380344f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(ne, &done); 3804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_high, Operand::Zero()); 3805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(mi, instr); 380644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 3807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 3808b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3809b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathRound(LMathRound* instr) { 3812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3813e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Register result = ToRegister(instr->result()); 3814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch1 = ToDoubleRegister(instr->temp()); 3815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_plus_dot_five = double_scratch1; 3816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_high = scratch0(); 3817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister dot_five = double_scratch0(); 3818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label convert, done; 3819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Vmov(dot_five, 0.5, scratch0()); 3821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vabs(double_scratch1, input); 3822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(double_scratch1, dot_five); 3823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If input is in [-0.5, -0], the result is -0. 3824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If input is in [+0, +0.5[, the result is +0. 3825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the input is +0.5, the result is 1. 3826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(hi, &convert); // Out of [-0.5, +0.5]. 3827257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 3828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(input_high, input); 3829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_high, Operand::Zero()); 3830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(mi, instr); // [-0.5, -0]. 3831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 3832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCompareAndSetFlags(input, dot_five); 3833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(1), LeaveCC, eq); // +0.5. 3834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Remaining cases: [+0, +0.5[ or [-0.5, +0.5[, depending on 3835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // flag kBailoutOnMinusZero. 3836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero(), LeaveCC, ne); 3837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 3838257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert); 3840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vadd(input_plus_dot_five, input, dot_five); 3841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Reuse dot_five (double_scratch0) as we no longer need this value. 3842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryInt32Floor(result, input_plus_dot_five, input_high, double_scratch0(), 3843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch &done, &done); 3844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr); 3845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 3846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 3847257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 3848e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathFround(LMathFround* instr) { 3850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->value()); 3851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister output_reg = ToDoubleRegister(instr->result()); 3852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister scratch = double_scratch0(); 3853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f32_f64(scratch.low(), input_reg); 3854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_f32(output_reg, scratch.low()); 3855e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3856e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3857e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathSqrt(LMathSqrt* instr) { 3859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 38613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsqrt(result, input); 3862b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3863b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3864b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { 3866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister temp = double_scratch0(); 38693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 38703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Note that according to ECMA-262 15.8.2.13: 38713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Math.pow(-Infinity, 0.5) == Infinity 38723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Math.sqrt(-Infinity) == NaN 38733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label done; 3874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(temp, -V8_INFINITY, scratch0()); 38753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ VFPCompareAndSetFlags(input, temp); 38763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ vneg(result, temp, eq); 38773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&done, eq); 38783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 387944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Add +0 to convert -0 to +0. 38803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vadd(result, input, kDoubleRegZero); 38813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ vsqrt(result, result); 38823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&done); 388344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 388444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 388544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 3886e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid LCodeGen::DoPower(LPower* instr) { 3887e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Representation exponent_type = instr->hydrogen()->right()->representation(); 38883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Having marked this as a call, we can use any registers. 38893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Just make sure that the input/output registers are the expected ones. 3890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tagged_exponent = MathPowTaggedDescriptor::exponent(); 3891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->right()->IsDoubleRegister() || 3892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToDoubleRegister(instr->right()).is(d1)); 3893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->right()->IsRegister() || 3894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ToRegister(instr->right()).is(tagged_exponent)); 3895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToDoubleRegister(instr->left()).is(d0)); 3896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToDoubleRegister(instr->result()).is(d2)); 3897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (exponent_type.IsSmi()) { 3899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::TAGGED); 3900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallStub(&stub); 3901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (exponent_type.IsTagged()) { 39023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label no_deopt; 3903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(tagged_exponent, &no_deopt); 3904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!r6.is(tagged_exponent)); 3905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r6, FieldMemOperand(tagged_exponent, HeapObject::kMapOffset)); 39063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 3907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r6, Operand(ip)); 3908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 39093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&no_deopt); 3910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::TAGGED); 39113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 3912e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (exponent_type.IsInteger32()) { 3913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::INTEGER); 39143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 3915e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 3916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(exponent_type.IsDouble()); 3917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathPowStub stub(isolate(), MathPowStub::DOUBLE); 39183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CallStub(&stub); 39193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 39203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 39215d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 39225d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 3923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathExp(LMathExp* instr) { 3924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input = ToDoubleRegister(instr->value()); 3925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result = ToDoubleRegister(instr->result()); 3926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch1 = ToDoubleRegister(instr->double_temp()); 3927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch2 = double_scratch0(); 3928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp1()); 3929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp2()); 39303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MathExpGenerator::EmitMathExp( 3932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch masm(), input, result, double_scratch1, double_scratch2, 3933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch temp1, temp2, scratch0()); 39343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 39353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 39363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathLog(LMathLog* instr) { 3938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ PrepareCallCFunction(0, 1, scratch0()); 3939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovToFloatParameter(ToDoubleRegister(instr->value())); 3940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallCFunction(ExternalReference::math_log_double_function(isolate()), 3941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0, 1); 3942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ MovFromFloatResult(ToDoubleRegister(instr->result())); 39435d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch} 39445d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 39455d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch 3946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoMathClz32(LMathClz32* instr) { 3947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 3948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 3949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ clz(result, input); 3950e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3951e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3952e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { 3954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 3955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 3956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasPointerMap()); 3957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 3958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<JSFunction> known_function = instr->hydrogen()->known_function(); 3959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (known_function.is_null()) { 3960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LPointerMap* pointers = instr->pointer_map(); 3961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 3962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ParameterCount count(instr->arity()); 3963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ InvokeFunction(r1, count, CALL_FUNCTION, generator); 3964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 3965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallKnownFunction(known_function, 3966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->formal_parameter_count(), 3967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->arity(), 3968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr, 3969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch R1_CONTAINS_TARGET); 3970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 39713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 39723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 39733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoTailCallThroughMegamorphicCache( 3975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LTailCallThroughMegamorphicCache* instr) { 3976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register receiver = ToRegister(instr->receiver()); 3977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register name = ToRegister(instr->name()); 3978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(receiver.is(LoadDescriptor::ReceiverRegister())); 3979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(name.is(LoadDescriptor::NameRegister())); 3980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(receiver.is(r1)); 3981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(name.is(r2)); 3982e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = r3; 3984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register extra = r4; 3985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register extra2 = r5; 3986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register extra3 = r6; 3987e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Important for the tail-call. 3989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool must_teardown_frame = NeedsEagerFrame(); 3990e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The probe will tail call to a handler if found. 3992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate()->stub_cache()->GenerateProbe(masm(), instr->hydrogen()->flags(), 3993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch must_teardown_frame, receiver, name, 3994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, extra, extra2, extra3); 3995e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Tail call to miss if we ended up here. 3997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (must_teardown_frame) __ LeaveFrame(StackFrame::INTERNAL); 3998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadIC::GenerateMiss(masm()); 3999b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4000b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4001b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) { 4003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 4004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4005257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch LPointerMap* pointers = instr->pointer_map(); 40062b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); 4007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->target()->IsConstantOperand()) { 4009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* target = LConstantOperand::cast(instr->target()); 4010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> code = Handle<Code>::cast(ToHandle(target)); 4011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch generator.BeforeCall(__ CallSize(code, RelocInfo::CODE_TARGET)); 4012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PlatformInterfaceDescriptor* call_descriptor = 4013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->descriptor().platform_specific_descriptor(); 4014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(code, RelocInfo::CODE_TARGET, TypeFeedbackId::None(), al, 4015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch call_descriptor->storage_mode()); 4016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->target()->IsRegister()); 4018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register target = ToRegister(instr->target()); 4019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch generator.BeforeCall(__ CallSize(target)); 4020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Make sure we don't emit any additional entries in the constant pool 4021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // before the call to ensure that the CallCodeSize() calculated the correct 4022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // number of instructions for the constant pool load. 4023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 4024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ConstantPoolUnavailableScope constant_pool_unavailable(masm_); 4025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(target, target, Operand(Code::kHeaderSize - kHeapObjectTag)); 4026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(target); 4028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch generator.AfterCall(); 4030257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 4031257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4032257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallJSFunction(LCallJSFunction* instr) { 4034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 4035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 4036086aeeaae12517475c22695a200be45495516549Ben Murdoch 4037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->pass_argument_count()) { 4038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r0, Operand(instr->arity())); 4039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4040b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Change context. 4042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); 4043b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Load the code entry address 4045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); 4046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Call(ip); 4047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT); 4049b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4050b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4051b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4052b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallFunction(LCallFunction* instr) { 4053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->function()).is(r1)); 4055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 40569fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 40579fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block int arity = instr->arity(); 4058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallFunctionStub stub(isolate(), arity, instr->hydrogen()->function_flags()); 40599fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 4060b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4061b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4062b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallNew(LCallNew* instr) { 4064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->constructor()).is(r1)); 4066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 4067b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r0, Operand(instr->arity())); 4069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // No cell in r2 for construct type feedback in optimized code 4070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); 4071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallConstructStub stub(isolate(), NO_CALL_CONSTRUCTOR_FLAGS); 4072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); 4073b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4074b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4075b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCallNewArray(LCallNewArray* instr) { 4077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->constructor()).is(r1)); 4079b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->result()).is(r0)); 4080b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4081b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ mov(r0, Operand(instr->arity())); 4082b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(r2, Heap::kUndefinedValueRootIndex); 4083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind kind = instr->hydrogen()->elements_kind(); 4084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationSiteOverrideMode override_mode = 4085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) 4086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? DISABLE_ALLOCATION_SITES 4087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : DONT_OVERRIDE; 4088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->arity() == 0) { 4090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArrayNoArgumentConstructorStub stub(isolate(), kind, override_mode); 4091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); 4092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->arity() == 1) { 4093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 4094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsFastPackedElementsKind(kind)) { 4095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label packed_case; 4096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We might need a change here 4097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // look at the first argument 4098b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r5, MemOperand(sp, 0)); 4099b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(r5, Operand::Zero()); 4100b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &packed_case); 4101b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind holey_kind = GetHoleyElementsKind(kind); 4103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArraySingleArgumentConstructorStub stub(isolate(), 4104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch holey_kind, 4105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch override_mode); 4106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); 4107b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 4108b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&packed_case); 4109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArraySingleArgumentConstructorStub stub(isolate(), kind, override_mode); 4112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); 4113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 4114b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4115b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ArrayNArgumentsConstructorStub stub(isolate(), kind, override_mode); 4116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); 4117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4118b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4119b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4120b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4121b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCallRuntime(LCallRuntime* instr) { 4122b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch CallRuntime(instr->function(), instr->arity(), instr); 4123b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4124b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4125b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) { 4127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register function = ToRegister(instr->function()); 4128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register code_object = ToRegister(instr->code_object()); 4129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(code_object, code_object, Operand(Code::kHeaderSize - kHeapObjectTag)); 4130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(code_object, 4131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(function, JSFunction::kCodeEntryOffset)); 4132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) { 4136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 4137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register base = ToRegister(instr->base_object()); 4138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->offset()->IsConstantOperand()) { 4139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* offset = LConstantOperand::cast(instr->offset()); 4140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, base, Operand(ToInteger32(offset))); 4141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register offset = ToRegister(instr->offset()); 4143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(result, base, offset); 4144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4148b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { 4149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Representation representation = instr->representation(); 4150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4151086aeeaae12517475c22695a200be45495516549Ben Murdoch Register object = ToRegister(instr->object()); 4152086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 4153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HObjectAccess access = instr->hydrogen()->access(); 4154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = access.offset(); 4155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsExternalMemory()) { 4157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 4158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = MemOperand(object, offset); 4159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 4160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 4161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4162086aeeaae12517475c22695a200be45495516549Ben Murdoch 4163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertNotSmi(object); 4164086aeeaae12517475c22695a200be45495516549Ben Murdoch 4165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!representation.IsSmi() || 4166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !instr->value()->IsConstantOperand() || 4167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IsSmi(LConstantOperand::cast(instr->value()))); 4168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (representation.IsDouble()) { 4169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(access.IsInobject()); 4170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->has_transition()); 4171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->NeedsWriteBarrier()); 4172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 4173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, FieldMemOperand(object, offset)); 4174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 4175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->has_transition()) { 4178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> transition = instr->hydrogen()->transition_map(); 4179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddDeprecationDependency(transition); 4180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(transition)); 4181086aeeaae12517475c22695a200be45495516549Ben Murdoch __ str(scratch, FieldMemOperand(object, HeapObject::kMapOffset)); 4182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->NeedsWriteBarrierForMap()) { 4183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 4184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Update the write barrier for the map field. 4185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteForMap(object, 4186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 4187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch temp, 4188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 4189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs); 4190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4191086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4192086aeeaae12517475c22695a200be45495516549Ben Murdoch 4193086aeeaae12517475c22695a200be45495516549Ben Murdoch // Do the store. 4194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 4195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (access.IsInobject()) { 4196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(object, offset); 4197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 41983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 4199086aeeaae12517475c22695a200be45495516549Ben Murdoch // Update the write barrier for the object for in-object properties. 42003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteField(object, 42013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch offset, 42023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 42033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch scratch, 4204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 42053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 42063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 4207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->SmiCheckForWriteBarrier(), 4208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 4209086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4210086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 4211086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(scratch, FieldMemOperand(object, JSObject::kPropertiesOffset)); 4212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand operand = FieldMemOperand(scratch, offset); 4213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Store(value, operand, representation); 42143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 4215086aeeaae12517475c22695a200be45495516549Ben Murdoch // Update the write barrier for the properties array. 4216086aeeaae12517475c22695a200be45495516549Ben Murdoch // object is used as a scratch register. 42173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ RecordWriteField(scratch, 42183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch offset, 42193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch value, 42203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch object, 4221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 42223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kSaveFPRegs, 42233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EMIT_REMEMBERED_SET, 4224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->SmiCheckForWriteBarrier(), 4225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 4226086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4227086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4228b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4229b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4230b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4231b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { 4232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); 4234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); 4235b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(StoreDescriptor::NameRegister(), Operand(instr->name())); 4237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->strict_mode()); 4238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 4239b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4240b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4241b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4242b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { 4243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition cc = instr->hydrogen()->allow_equality() ? hi : hs; 4244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->index()->IsConstantOperand()) { 4245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand index = ToOperand(instr->index()); 4246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register length = ToRegister(instr->length()); 4247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(length, index); 4248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cc = CommuteCondition(cc); 4249086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 4250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index = ToRegister(instr->index()); 4251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand length = ToOperand(instr->length()); 4252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(index, length); 4253086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4254b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_debug_code && instr->hydrogen()->skip_check()) { 4255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 4256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(NegateCondition(cc), &done); 4257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("eliminated bounds check failed"); 4258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 42593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 4260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(cc, instr); 42613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 42623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 42633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 42643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 4265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) { 4266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register external_pointer = ToRegister(instr->elements()); 4267257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register key = no_reg; 4268589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch ElementsKind elements_kind = instr->elements_kind(); 4269257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 4270257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch int constant_key = 0; 4271257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (key_is_constant) { 4272257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 4273257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (constant_key & 0xF0000000) { 4274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 4275257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 4276257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 4277257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch key = ToRegister(instr->key()); 4278257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 4279b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(elements_kind); 4280b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 4281b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 4282b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 4283257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || 4285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT32_ELEMENTS || 4286b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == EXTERNAL_FLOAT64_ELEMENTS || 4287b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT64_ELEMENTS) { 4288b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register address = scratch0(); 42898b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch DwVfpRegister value(ToDoubleRegister(instr->value())); 4290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 4291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key != 0) { 4292b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(address, external_pointer, 4293b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(constant_key << element_size_shift)); 4294b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4295b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch address = external_pointer; 4296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4298b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(address, external_pointer, Operand(key, LSL, shift_size)); 4299b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || 4301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch elements_kind == FLOAT32_ELEMENTS) { 4302257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ vcvt_f32_f64(double_scratch0().low(), value); 4303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(double_scratch0().low(), address, base_offset); 4304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { // Storing doubles, not floats. 4305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, address, base_offset); 4306257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 43078b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else { 43088b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Register value(ToRegister(instr->value())); 4309b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemOperand mem_operand = PrepareKeyedOperand( 4310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, external_pointer, key_is_constant, constant_key, 4311b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch element_size_shift, shift_size, 4312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base_offset); 43133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch switch (elements_kind) { 4314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_CLAMPED_ELEMENTS: 4315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT8_ELEMENTS: 4316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT8_ELEMENTS: 4317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_ELEMENTS: 4318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT8_CLAMPED_ELEMENTS: 4319b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT8_ELEMENTS: 4320257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ strb(value, mem_operand); 43218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT16_ELEMENTS: 4323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT16_ELEMENTS: 4324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT16_ELEMENTS: 4325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT16_ELEMENTS: 4326257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ strh(value, mem_operand); 43278b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_INT32_ELEMENTS: 4329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_UINT32_ELEMENTS: 4330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case INT32_ELEMENTS: 4331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case UINT32_ELEMENTS: 4332257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ str(value, mem_operand); 43338b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 4334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT32_ELEMENTS: 4335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FLOAT64_ELEMENTS: 4336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_FLOAT32_ELEMENTS: 4337b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case EXTERNAL_FLOAT64_ELEMENTS: 4338589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_DOUBLE_ELEMENTS: 4339589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case FAST_ELEMENTS: 4340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_SMI_ELEMENTS: 4341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_DOUBLE_ELEMENTS: 4342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_ELEMENTS: 4343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case FAST_HOLEY_SMI_ELEMENTS: 4344589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch case DICTIONARY_ELEMENTS: 4345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case SLOPPY_ARGUMENTS_ELEMENTS: 43468b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch UNREACHABLE(); 43478b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch break; 43488b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 43498b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 435044f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 435144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 435244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) { 4354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value = ToDoubleRegister(instr->value()); 4355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 4356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 4357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch = double_scratch0(); 4358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool key_is_constant = instr->key()->IsConstantOperand(); 4359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base_offset = instr->base_offset(); 4360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Calculate the effective address of the slot in the array to store the 4362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // double value. 4363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int element_size_shift = ElementsKindToShiftSize(FAST_DOUBLE_ELEMENTS); 4364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (key_is_constant) { 4365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int constant_key = ToInteger32(LConstantOperand::cast(instr->key())); 4366b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (constant_key & 0xF0000000) { 4367b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Abort(kArrayIndexConstantValueTooBig); 4368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, 4370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand((constant_key << element_size_shift) + base_offset)); 4371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int shift_size = (instr->hydrogen()->key()->representation().IsSmi()) 4373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (element_size_shift - kSmiTagSize) : element_size_shift; 4374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(base_offset)); 4375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, scratch, 4376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Operand(ToRegister(instr->key()), LSL, shift_size)); 4377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->NeedsCanonicalization()) { 4380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Force a canonical NaN. 4381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (masm()->emit_debug_code()) { 4382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmrs(ip); 4383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(ip, Operand(kVFPDefaultNaNModeControlBit)); 4384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Assert(ne, kDefaultNaNModeNotSet); 4385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VFPCanonicalizeNaN(double_scratch, value); 4387b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(double_scratch, scratch, 0); 4388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4389b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(value, scratch, 0); 4390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4391b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) { 4395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register value = ToRegister(instr->value()); 4396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register elements = ToRegister(instr->elements()); 4397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register key = instr->key()->IsRegister() ? ToRegister(instr->key()) 4398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : no_reg; 4399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = scratch0(); 4400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register store_base = scratch; 4401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = instr->base_offset(); 4402b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Do the store. 4404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->key()->IsConstantOperand()) { 4405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->NeedsWriteBarrier()); 4406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LConstantOperand* const_operand = LConstantOperand::cast(instr->key()); 4407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset += ToInteger32(const_operand) * kPointerSize; 4408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch store_base = elements; 4409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Even though the HLoadKeyed instruction forces the input 4411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // representation for the key to be an integer, the input gets replaced 4412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // during bound check elimination with the index argument to the bounds 4413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // check, which can be tagged, so that case must be handled here, too. 4414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->key()->representation().IsSmi()) { 4415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand::PointerOffsetFromSmiKey(key)); 4416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, elements, Operand(key, LSL, kPointerSizeLog2)); 4418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(value, MemOperand(store_base, offset)); 4421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->NeedsWriteBarrier()) { 4423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SmiCheck check_needed = 4424b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->value()->type().IsHeapObject() 4425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; 4426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Compute address of modified element and store it into key register. 4427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(key, store_base, Operand(offset)); 4428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWrite(elements, 4429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch key, 4430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch value, 4431b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 4432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kSaveFPRegs, 4433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EMIT_REMEMBERED_SET, 4434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch check_needed, 4435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->PointersToHereCheckForValue()); 4436b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4437b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4438b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4439b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreKeyed(LStoreKeyed* instr) { 4441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // By cases: external, fast double 4442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->is_typed_elements()) { 4443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedExternalArray(instr); 4444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->value()->representation().IsDouble()) { 4445b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedFixedDoubleArray(instr); 4446b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DoStoreKeyedFixedArray(instr); 4448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4452b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { 4453b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4454b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); 4455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister())); 4456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); 4457b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> ic = 4459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeFactory::KeyedStoreIC(isolate(), instr->strict_mode()).code(); 4460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(ic, RelocInfo::CODE_TARGET, instr, NEVER_INLINE_TARGET_ADDRESS); 44618b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 44628b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 44638b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 44643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { 44653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object_reg = ToRegister(instr->object()); 44663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 44673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 44683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Handle<Map> from_map = instr->original_map(); 44693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Handle<Map> to_map = instr->transitioned_map(); 4470b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind from_kind = instr->from_kind(); 4471b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ElementsKind to_kind = instr->to_kind(); 44723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 44733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label not_applicable; 44743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch, FieldMemOperand(object_reg, HeapObject::kMapOffset)); 44753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(scratch, Operand(from_map)); 44763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(ne, ¬_applicable); 4477b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4478b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (IsSimpleMapChangeTransition(from_kind, to_kind)) { 4479b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register new_map_reg = ToRegister(instr->new_map_temp()); 4480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(new_map_reg, Operand(to_map)); 44813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset)); 44823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Write barrier. 4483b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ RecordWriteForMap(object_reg, 4484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_map_reg, 4485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch scratch, 4486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GetLinkRegisterState(), 4487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kDontSaveFPRegs); 44883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 4489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(object_reg.is(r0)); 4491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(r1, to_map); 4493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_js_array = from_map->instance_type() == JS_ARRAY_TYPE; 4494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch TransitionElementsKindStub stub(isolate(), from_kind, to_kind, is_js_array); 4495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallStub(&stub); 4496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kLazyDeopt); 44983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 44993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(¬_applicable); 45003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 45013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 45023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 4503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { 4504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object = ToRegister(instr->object()); 4505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp = ToRegister(instr->temp()); 4506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_memento_found; 4507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found); 4508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 4509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_memento_found); 4510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4513257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoStringAdd(LStringAdd* instr) { 4514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 4515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->left()).is(r1)); 4516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->right()).is(r0)); 4517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringAddStub stub(isolate(), 4518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->flags(), 4519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->pretenure_flag()); 4520257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 4521257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 4522257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4523257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 45241e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { 4525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredStringCharCodeAt FINAL : public LDeferredCode { 45261e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block public: 45271e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) 45281e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block : LDeferredCode(codegen), instr_(instr) { } 4529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 4530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredStringCharCodeAt(instr_); 4531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 45331e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block private: 45341e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LStringCharCodeAt* instr_; 45351e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block }; 45361e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block DeferredStringCharCodeAt* deferred = 4538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStringCharCodeAt(this, instr); 45391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch StringCharLoadGenerator::Generate(masm(), 45413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->string()), 45423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->index()), 45433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ToRegister(instr->result()), 45443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch deferred->entry()); 45451e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ bind(deferred->exit()); 45461e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 45471e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45481e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45491e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { 45501e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register string = ToRegister(instr->string()); 45511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register result = ToRegister(instr->result()); 45521e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch = scratch0(); 45531e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // TODO(3095996): Get rid of this. For now, we need to make the 45551e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // result register contain a valid pointer because it is already 45561e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // contained in the register pointer map. 4557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 45581e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 4559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 45601e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(string); 45611e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Push the index as a smi. This is safe because of the checks in 45621e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // DoStringCharCodeAt above. 45631e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block if (instr->index()->IsConstantOperand()) { 45641e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block int const_index = ToInteger32(LConstantOperand::cast(instr->index())); 45651e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ mov(scratch, Operand(Smi::FromInt(const_index))); 45661e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(scratch); 45671e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } else { 45681e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register index = ToRegister(instr->index()); 45691e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ SmiTag(index); 45701e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ push(index); 45711e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 4572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred(Runtime::kStringCharCodeAtRT, 2, instr, 4573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->context()); 4574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AssertSmi(r0); 45751e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ SmiUntag(r0); 4576e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 45771e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 45781e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 45791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 458044f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { 4581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredStringCharFromCode FINAL : public LDeferredCode { 458244f0eee88ff00398ff7f715fab053374d808c90dSteve Block public: 458344f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) 458444f0eee88ff00398ff7f715fab053374d808c90dSteve Block : LDeferredCode(codegen), instr_(instr) { } 4585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 4586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredStringCharFromCode(instr_); 4587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4588b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 458944f0eee88ff00398ff7f715fab053374d808c90dSteve Block private: 459044f0eee88ff00398ff7f715fab053374d808c90dSteve Block LStringCharFromCode* instr_; 459144f0eee88ff00398ff7f715fab053374d808c90dSteve Block }; 459244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 459344f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeferredStringCharFromCode* deferred = 4594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStringCharFromCode(this, instr); 459544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->value()->representation().IsInteger32()); 459744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register char_code = ToRegister(instr->char_code()); 459844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result = ToRegister(instr->result()); 4599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!char_code.is(result)); 460044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(char_code, Operand(String::kMaxOneByteCharCode)); 460244f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(hi, deferred->entry()); 460344f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ LoadRoot(result, Heap::kSingleCharacterStringCacheRootIndex); 460444f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ add(result, result, Operand(char_code, LSL, kPointerSizeLog2)); 460544f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ ldr(result, FieldMemOperand(result, FixedArray::kHeaderSize)); 460644f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 460744f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ cmp(result, ip); 460844f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ b(eq, deferred->entry()); 460944f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ bind(deferred->exit()); 461044f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 461144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 461244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 461344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { 461444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register char_code = ToRegister(instr->char_code()); 461544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result = ToRegister(instr->result()); 461644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 461744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // TODO(3095996): Get rid of this. For now, we need to make the 461844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // result register contain a valid pointer because it is already 461944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // contained in the register pointer map. 4620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand::Zero()); 462144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 462344f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ SmiTag(char_code); 462444f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ push(char_code); 4625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context()); 462644f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ StoreToSafepointRegisterSlot(r0, result); 462744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 462844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 462944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { 4631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister() || input->IsStackSlot()); 4633b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch LOperand* output = instr->result(); 4634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(output->IsDoubleRegister()); 4635b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch SwVfpRegister single_scratch = double_scratch0().low(); 4636b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch if (input->IsStackSlot()) { 4637b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch Register scratch = scratch0(); 4638b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ ldr(scratch, ToMemOperand(input)); 4639b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vmov(single_scratch, scratch); 4640b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } else { 4641b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vmov(single_scratch, ToRegister(input)); 4642b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch } 4643b8e0da25ee8efac3bb05cd6b2730aafbd96119f4Ben Murdoch __ vcvt_f64_s32(ToDoubleRegister(output), single_scratch); 4644b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4645b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4646b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4647b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoUint32ToDouble(LUint32ToDouble* instr) { 4648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 4649b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* output = instr->result(); 4650b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SwVfpRegister flt_scratch = double_scratch0().low(); 4652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(flt_scratch, ToRegister(input)); 4653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_u32(ToDoubleRegister(output), flt_scratch); 4654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4657b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberTagI(LNumberTagI* instr) { 4658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredNumberTagI FINAL : public LDeferredCode { 4659b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch public: 4660b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) 4661b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 4662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 4663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredNumberTagIU(instr_, 4664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->value(), 4665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp1(), 4666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp2(), 4667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIGNED_INT32); 4668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 4670b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch private: 4671b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LNumberTagI* instr_; 4672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch }; 4673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register src = ToRegister(instr->value()); 46753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register dst = ToRegister(instr->result()); 4676b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); 46783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiTag(dst, src, SetCC); 4679b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(vs, deferred->entry()); 4680b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(deferred->exit()); 4681b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4682b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4683b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoNumberTagU(LNumberTagU* instr) { 4685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredNumberTagU FINAL : public LDeferredCode { 4686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 4687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagU(LCodeGen* codegen, LNumberTagU* instr) 4688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 4689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 4690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredNumberTagIU(instr_, 4691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->value(), 4692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp1(), 4693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_->temp2(), 4694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch UNSIGNED_INT32); 4695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 4697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 4698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LNumberTagU* instr_; 4699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 4700b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4701b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 4702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result = ToRegister(instr->result()); 4703b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4704b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagU* deferred = new(zone()) DeferredNumberTagU(this, instr); 4705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input, Operand(Smi::kMaxValue)); 4706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(hi, deferred->entry()); 4707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result, input); 4708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 4709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 4710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredNumberTagIU(LInstruction* instr, 4713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* value, 4714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* temp1, 4715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* temp2, 4716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch IntegerSignedness signedness) { 4717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done, slow; 4718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register src = ToRegister(value); 4719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register dst = ToRegister(instr->result()); 4720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp1 = scratch0(); 4721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp2 = ToRegister(temp1); 4722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register tmp3 = ToRegister(temp2); 4723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister dbl_scratch = double_scratch0(); 4724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (signedness == SIGNED_INT32) { 4726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // There was overflow, so bits 30 and 31 of the original integer 4727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // disagree. Try to allocate a heap number in new space and store 4728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the value in there. If that fails, call the runtime system. 4729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (dst.is(src)) { 4730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(src, dst); 4731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ eor(src, src, Operand(0x80000000)); 4732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(dbl_scratch.low(), src); 4734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_s32(dbl_scratch, dbl_scratch.low()); 4735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vmov(dbl_scratch.low(), src); 4737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vcvt_f64_u32(dbl_scratch, dbl_scratch.low()); 47383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4740b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_inline_new) { 4741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(tmp3, Heap::kHeapNumberMapRootIndex); 4742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AllocateHeapNumber(dst, tmp1, tmp2, tmp3, &slow, DONT_TAG_RESULT); 4743b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(&done); 4744b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4745b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4746b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Slow case: Call the runtime system to do the number allocation. 4747b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&slow); 4748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 4749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(3095996): Put a valid pointer value in the stack slot where the 4750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // result register is stored, as this register is in the pointer map, but 4751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // contains an integer value. 4752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(dst, Operand::Zero()); 4753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Preserve the value of all registers. 4755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NumberTagI and NumberTagD use the context from the frame, rather than 4758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the environment's HContext or HInlinedContext value. 4759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // They only call Runtime::kAllocateHeapNumber. 4760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The corresponding HChange instructions are added in a phase that does 4761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // not have easy access to the local context. 4762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kHeapObjectTag)); 4767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, dst); 4768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4769b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4770b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Done. Put the value in dbl_scratch into the value of the allocated heap 4771b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // number. 4772b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(dbl_scratch, dst, HeapNumber::kValueOffset); 4774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(dst, dst, Operand(kHeapObjectTag)); 4775b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4776b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4777b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4778b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberTagD(LNumberTagD* instr) { 4779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredNumberTagD FINAL : public LDeferredCode { 4780b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch public: 4781b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) 4782b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 4783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 4784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredNumberTagD(instr_); 4785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 4787b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch private: 4788b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LNumberTagD* instr_; 4789b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch }; 4790b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister input_reg = ToDoubleRegister(instr->value()); 47929fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 4793b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(instr->result()); 4794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 4795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp2 = ToRegister(instr->temp2()); 4796b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); 4798b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (FLAG_inline_new) { 4799b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ LoadRoot(scratch, Heap::kHeapNumberMapRootIndex); 4800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We want the untagged address first for performance 4801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ AllocateHeapNumber(reg, temp1, temp2, scratch, deferred->entry(), 4802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DONT_TAG_RESULT); 4803b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 4804b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ jmp(deferred->entry()); 4805b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4806b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(deferred->exit()); 4807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vstr(input_reg, reg, HeapNumber::kValueOffset); 4808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Now that we have finished with the object's real address tag it 4809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(reg, reg, Operand(kHeapObjectTag)); 4810b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4811b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4812b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4813b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { 4814b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // TODO(3095996): Get rid of this. For now, we need to make the 4815b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // result register contain a valid pointer because it is already 4816b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // contained in the register pointer map. 4817b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(instr->result()); 4818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(reg, Operand::Zero()); 4819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 4821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // NumberTagI and NumberTagD use the context from the frame, rather than 4822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the environment's HContext or HInlinedContext value. 4823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // They only call Runtime::kAllocateHeapNumber. 4824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The corresponding HChange instructions are added in a phase that does 4825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // not have easy access to the local context. 4826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 4827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); 4828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 4829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); 4830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(r0, r0, Operand(kHeapObjectTag)); 4831e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ StoreToSafepointRegisterSlot(r0, reg); 4832b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4833b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4834b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4835b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSmiTag(LSmiTag* instr) { 4836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HChange* hchange = instr->hydrogen(); 4837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 4838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register output = ToRegister(instr->result()); 4839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hchange->CheckFlag(HValue::kCanOverflow) && 4840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch hchange->value()->CheckFlag(HValue::kUint32)) { 4841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(input, Operand(0xc0000000)); 4842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 4843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hchange->CheckFlag(HValue::kCanOverflow) && 4845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !hchange->value()->CheckFlag(HValue::kUint32)) { 4846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(output, input, SetCC); 4847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 4848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(output, input); 4850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4851b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4852b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4853b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4854b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoSmiUntag(LSmiUntag* instr) { 4855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 48563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 4857086aeeaae12517475c22695a200be45495516549Ben Murdoch if (instr->needs_check()) { 485869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 4859257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If the input is a HeapObject, SmiUntag will set the carry flag. 48603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiUntag(result, input, SetCC); 4861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(cs, instr); 4862257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 48633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ SmiUntag(result, input); 4864086aeeaae12517475c22695a200be45495516549Ben Murdoch } 4865b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4866b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4867b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EmitNumberUntagD(LNumberUntagD* instr, Register input_reg, 4869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg, 4870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NumberUntagDMode mode) { 4871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool can_convert_undefined_to_nan = 4872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->can_convert_undefined_to_nan(); 4873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool deoptimize_on_minus_zero = instr->hydrogen()->deoptimize_on_minus_zero(); 4874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 48759fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 48763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SwVfpRegister flt_scratch = double_scratch0().low(); 4877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!result_reg.is(double_scratch0())); 4878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label convert, load_smi, done; 4879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED) { 4880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Smi check. 4881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ UntagAndJumpIfSmi(scratch, input_reg, &load_smi); 4882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Heap number map check. 4883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); 4884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 4885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(ip)); 4886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_convert_undefined_to_nan) { 4887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &convert); 4888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 4890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // load heap number 4892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result_reg, input_reg, HeapNumber::kValueOffset - kHeapObjectTag); 4893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (deoptimize_on_minus_zero) { 4894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(scratch, result_reg); 4895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand::Zero()); 4896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 4897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch, result_reg); 4898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch, Operand(HeapNumber::kSignMask)); 4899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 4900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 49017d3e7fc4b65010eabe860313ee0c64f50843f6e3Ben Murdoch __ jmp(&done); 4902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (can_convert_undefined_to_nan) { 4903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&convert); 4904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Convert undefined (and hole) to NaN. 4905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 4906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, Operand(ip)); 4907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 4908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(scratch, Heap::kNanValueRootIndex); 4909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(result_reg, scratch, HeapNumber::kValueOffset - kHeapObjectTag); 4910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 4911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 4912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 4913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(scratch, input_reg); 4914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(mode == NUMBER_CANDIDATE_IS_SMI); 49153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 4916b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Smi to double register conversion 4917b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&load_smi); 49183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // scratch: untagged value of input_reg 49193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ vmov(flt_scratch, scratch); 4920b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ vcvt_f64_s32(result_reg, flt_scratch); 4921b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4922b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4923b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4924b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4925b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr) { 4926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input_reg = ToRegister(instr->value()); 492744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register scratch1 = scratch0(); 4928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = ToRegister(instr->temp()); 4929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 4930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_scratch2 = ToDoubleRegister(instr->temp2()); 493144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch1.is(input_reg) && !scratch1.is(scratch2)); 4933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!scratch2.is(input_reg) && !scratch2.is(scratch1)); 493444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 493544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Label done; 4936b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4937257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The input was optimistically untagged; revert it. 4938257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // The carry flag is set when we reach this deferred code as we just executed 4939257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // SmiUntag(heap_object, SetCC) 494069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 4941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ adc(scratch2, input_reg, Operand(input_reg)); 4942257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 4943b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Heap number map check. 4944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch1, FieldMemOperand(scratch2, HeapObject::kMapOffset)); 4945b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); 494644f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ cmp(scratch1, Operand(ip)); 4947b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4948b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->truncating()) { 494944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Performs a truncating conversion of a floating point number as used by 495044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // the JS bitwise operations. 4951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label no_heap_number, check_bools, check_false; 4952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &no_heap_number); 4953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateHeapNumberToI(input_reg, scratch2); 4954b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(&done); 4955b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Check for Oddballs. Undefined/False is converted to zero and True to one 4957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // for truncating conversions. 4958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&no_heap_number); 4959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 4960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &check_bools); 4962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand::Zero()); 4963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 496444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_bools); 4966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kTrueValueRootIndex); 4967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &check_false); 4969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand(1)); 4970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(&done); 4971b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&check_false); 4973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ LoadRoot(ip, Heap::kFalseValueRootIndex); 4974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(scratch2, Operand(ip)); 4975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr, "cannot truncate"); 4976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(input_reg, Operand::Zero()); 4977b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 4978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr, "not a heap number"); 4979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 4980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(ip, scratch2, Operand(kHeapObjectTag)); 4981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(double_scratch2, ip, HeapNumber::kValueOffset); 4982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(input_reg, double_scratch2, double_scratch); 4983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr, "lost precision or NaN"); 498444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 4985b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 4986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(input_reg, Operand::Zero()); 4987b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(ne, &done); 4988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_scratch2); 498944f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ tst(scratch1, Operand(HeapNumber::kSignMask)); 4990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr, "minus zero"); 4991b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4992b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 4993b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ bind(&done); 4994b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 4995b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4996b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 4997b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTaggedToI(LTaggedToI* instr) { 4998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredTaggedToI FINAL : public LDeferredCode { 49993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 50003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) 50013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 5002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 5003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredTaggedToI(instr_); 5004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 50063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 50073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LTaggedToI* instr_; 50083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch }; 50093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 5012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->Equals(instr->result())); 5013b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5014b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input_reg = ToRegister(input); 5015b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->value()->representation().IsSmi()) { 5017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(input_reg); 5018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); 5020b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Optimistically untag the input. 5022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // If the input is a HeapObject, SmiUntag will set the carry flag. 5023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiUntag(input_reg, SetCC); 5024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Branch to deferred code if the input was tagged. 5025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The deferred code will take care of restoring the tag. 5026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(cs, deferred->entry()); 5027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 5028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5029b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5030b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5031b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5032b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { 5033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 5035b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch LOperand* result = instr->result(); 5036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(result->IsDoubleRegister()); 5037b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5038b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input_reg = ToRegister(input); 5039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(result); 5040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HValue* value = instr->hydrogen()->value(); 5042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NumberUntagDMode mode = value->representation().IsSmi() 5043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? NUMBER_CANDIDATE_IS_SMI : NUMBER_CANDIDATE_IS_ANY_TAGGED; 5044b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitNumberUntagD(instr, input_reg, result_reg, mode); 5046b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5047b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5048b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5049b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDoubleToI(LDoubleToI* instr) { 505044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Register result_reg = ToRegister(instr->result()); 50511e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Register scratch1 = scratch0(); 5052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_input = ToDoubleRegister(instr->value()); 5053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 50541e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 5055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->truncating()) { 5056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateDoubleToI(result_reg, double_input); 5057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); 5059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if the input wasn't a int32 (inside a double). 5060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 5062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 5063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 5064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 5065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_input); 5066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch1, Operand(HeapNumber::kSignMask)); 5067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 5069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5073b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5074b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) { 5075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 5076b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch1 = scratch0(); 5077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister double_input = ToDoubleRegister(instr->value()); 5078b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LowDwVfpRegister double_scratch = double_scratch0(); 50791e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 508044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (instr->truncating()) { 5081b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TruncateDoubleToI(result_reg, double_input); 508244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 5083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ TryDoubleToInt32Exact(result_reg, double_input, double_scratch); 5084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deoptimize if the input wasn't a int32 (inside a double). 5085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { 5087b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label done; 5088b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result_reg, Operand::Zero()); 5089b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &done); 5090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(scratch1, double_input); 5091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch1, Operand(HeapNumber::kSignMask)); 5092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 5094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 50951e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block } 5096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(result_reg, SetCC); 5097b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(vs, instr); 5098b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5099b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5100b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5101b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCheckSmi(LCheckSmi* instr) { 5102b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(ToRegister(input)); 5104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 510544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 510644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 510744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 510844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { 5109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!instr->hydrogen()->value()->type().IsHeapObject()) { 5110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5111b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(ToRegister(input)); 5112b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 5113b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5114b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5115b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5116b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5117b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { 5118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 5119086aeeaae12517475c22695a200be45495516549Ben Murdoch Register scratch = scratch0(); 5120086aeeaae12517475c22695a200be45495516549Ben Murdoch 5121086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5122086aeeaae12517475c22695a200be45495516549Ben Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); 5123086aeeaae12517475c22695a200be45495516549Ben Murdoch 5124257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (instr->hydrogen()->is_interval_check()) { 5125257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType first; 5126257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch InstanceType last; 5127257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch instr->hydrogen()->GetCheckInterval(&first, &last); 5128257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5129257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(first)); 5130257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5131257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // If there is only one type in the interval check for equality. 5132257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (first == last) { 5133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5134257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 5135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(lo, instr); 5136257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Omit check for the last type. 5137257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (last != LAST_TYPE) { 5138257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(last)); 5139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(hi, instr); 5140257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 5141257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 5142086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 5143257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch uint8_t mask; 5144257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch uint8_t tag; 5145257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); 5146257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (base::bits::IsPowerOfTwo32(mask)) { 5148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(tag == 0 || base::bits::IsPowerOfTwo32(tag)); 5149257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ tst(scratch, Operand(mask)); 5150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(tag == 0 ? ne : eq, instr); 5151257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } else { 5152257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ and_(scratch, scratch, Operand(mask)); 5153257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(tag)); 5154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5155086aeeaae12517475c22695a200be45495516549Ben Murdoch } 5156086aeeaae12517475c22695a200be45495516549Ben Murdoch } 5157b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5158b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5159b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCheckValue(LCheckValue* instr) { 51613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register reg = ToRegister(instr->value()); 5162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<HeapObject> object = instr->hydrogen()->object().handle(); 5163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllowDeferredHandleDereference smi_check; 5164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate()->heap()->InNewSpace(*object)) { 51653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register reg = ToRegister(instr->value()); 5166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Cell> cell = isolate()->factory()->NewCell(object); 51673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ mov(ip, Operand(Handle<Object>(cell))); 5168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(ip, FieldMemOperand(ip, Cell::kValueOffset)); 51693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(reg, ip); 51703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 5171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(reg, Operand(object)); 51723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5174b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5175b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5176b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) { 5178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 5179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(object); 5181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, Operand::Zero()); 5182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kTryMigrateInstance); 5183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 5184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 1, Safepoint::kNoLazyDeopt); 5185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, scratch0()); 5186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch0(), Operand(kSmiTagMask)); 5188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 51893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 51903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 51913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoCheckMaps(LCheckMaps* instr) { 5193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredCheckMaps FINAL : public LDeferredCode { 5194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 5195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredCheckMaps(LCodeGen* codegen, LCheckMaps* instr, Register object) 5196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), instr_(instr), object_(object) { 5197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetExit(check_maps()); 5198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 5200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredInstanceMigration(instr_, object_); 5201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label* check_maps() { return &check_maps_; } 5203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 5204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 5205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LCheckMaps* instr_; 5206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label check_maps_; 5207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object_; 5208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 5209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->IsStabilityCheck()) { 5211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const UniqueSet<Map>* maps = instr->hydrogen()->maps(); 5212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps->size(); ++i) { 5213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AddStabilityDependency(maps->at(i).handle()); 5214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 5216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register map_reg = scratch0(); 5219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOperand* input = instr->value(); 5221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(input->IsRegister()); 5222b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register reg = ToRegister(input); 5223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); 5225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredCheckMaps* deferred = NULL; 5227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->HasMigrationTarget()) { 5228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deferred = new(zone()) DeferredCheckMaps(this, instr, reg); 5229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->check_maps()); 5230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const UniqueSet<Map>* maps = instr->hydrogen()->maps(); 5233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label success; 5234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < maps->size() - 1; i++) { 5235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map = maps->at(i).handle(); 5236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareMap(map_reg, map, &success); 5237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, &success); 5238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Map> map = maps->at(maps->size() - 1).handle(); 5241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareMap(map_reg, map, &success); 5242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->HasMigrationTarget()) { 5243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, deferred->entry()); 5244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&success); 5249b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5250b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5251b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5252257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { 5253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value_reg = ToDoubleRegister(instr->unclamped()); 5254257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5255b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ClampDoubleToUint8(result_reg, value_reg, double_scratch0()); 5256257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5257257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5258257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5259257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { 5260257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register unclamped_reg = ToRegister(instr->unclamped()); 5261257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5262257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ClampUint8(result_reg, unclamped_reg); 5263257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5264257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5265257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5266257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdochvoid LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { 5267257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register scratch = scratch0(); 5268257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register input_reg = ToRegister(instr->unclamped()); 5269257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Register result_reg = ToRegister(instr->result()); 5270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister temp_reg = ToDoubleRegister(instr->temp()); 5271257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Label is_smi, done, heap_number; 5272257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5273257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Both smi and heap number cases are handled. 52743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ UntagAndJumpIfSmi(result_reg, input_reg, &is_smi); 5275257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5276257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check for heap number 5277257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ldr(scratch, FieldMemOperand(input_reg, HeapObject::kMapOffset)); 5278257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(scratch, Operand(factory()->heap_number_map())); 5279257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ b(eq, &heap_number); 5280257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5281257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Check for undefined. Undefined is converted to zero for clamping 5282257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // conversions. 5283257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ cmp(input_reg, Operand(factory()->undefined_value())); 5284b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5285b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result_reg, Operand::Zero()); 5286257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ jmp(&done); 5287257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5288257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // Heap number 5289257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&heap_number); 5290b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ vldr(temp_reg, FieldMemOperand(input_reg, HeapNumber::kValueOffset)); 5291b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ClampDoubleToUint8(result_reg, temp_reg, double_scratch0()); 5292257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ jmp(&done); 5293257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5294257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch // smi 5295257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&is_smi); 5296257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ ClampUint8(result_reg, result_reg); 5297257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5298257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch __ bind(&done); 5299257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5300257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5301257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDoubleBits(LDoubleBits* instr) { 5303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister value_reg = ToDoubleRegister(instr->value()); 5304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_reg = ToRegister(instr->result()); 5305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->bits() == HDoubleBits::HIGH) { 5306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(result_reg, value_reg); 5307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5308b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(result_reg, value_reg); 53099fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 5310b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 53119fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block 5312b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5313b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoConstructDouble(LConstructDouble* instr) { 5314b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register hi_reg = ToRegister(instr->hi()); 5315b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register lo_reg = ToRegister(instr->lo()); 5316b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DwVfpRegister result_reg = ToDoubleRegister(instr->result()); 5317b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovHigh(result_reg, hi_reg); 5318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ VmovLow(result_reg, lo_reg); 5319b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5320b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5321b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoAllocate(LAllocate* instr) { 5323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredAllocate FINAL : public LDeferredCode { 53243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 5325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredAllocate(LCodeGen* codegen, LAllocate* instr) 53263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : LDeferredCode(codegen), instr_(instr) { } 5327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 5328b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredAllocate(instr_); 5329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 53313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 5332b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LAllocate* instr_; 53333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch }; 53343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredAllocate* deferred = 5336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredAllocate(this, instr); 53373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 53383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 5339b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch = ToRegister(instr->temp1()); 5340b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register scratch2 = ToRegister(instr->temp2()); 5341b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5342b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Allocate memory for the object. 5343b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch AllocationFlags flags = TAG_OBJECT; 5344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->MustAllocateDoubleAligned()) { 5345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); 5346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5347b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { 5348b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); 5349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5350b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); 5351b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { 5352b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); 5354b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5355b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5356b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsConstantOperand()) { 5357b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (size <= Page::kMaxRegularHeapObjectSize) { 5359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); 5360b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(deferred->entry()); 53623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register size = ToRegister(instr->size()); 5365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(size, result, scratch, scratch2, deferred->entry(), flags); 53663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 53673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 53683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(deferred->exit()); 5369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5370b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->MustPrefillWithFiller()) { 5371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kHeapObjectTag == 1); 5372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsConstantOperand()) { 5373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch, Operand(size - kHeapObjectTag)); 5375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 5376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, ToRegister(instr->size()), Operand(kHeapObjectTag)); 5377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(scratch2, Operand(isolate()->factory()->one_pointer_filler_map())); 5379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label loop; 5380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&loop); 5381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, scratch, Operand(kPointerSize), SetCC); 5382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(scratch2, MemOperand(result, scratch)); 5383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ge, &loop); 5384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 53853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 53863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 53873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredAllocate(LAllocate* instr) { 53893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 53903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 53913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // TODO(3095996): Get rid of this. For now, we need to make the 53923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // result register contain a valid pointer because it is already 53933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // contained in the register pointer map. 5394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(Smi::FromInt(0))); 5395b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5396b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5397b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->size()->IsRegister()) { 5398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register size = ToRegister(instr->size()); 5399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!size.is(result)); 5400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTag(size); 5401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(size); 54029fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } else { 5403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); 5404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (size >= 0 && size <= Smi::kMaxValue) { 5405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(Smi::FromInt(size)); 54063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 5407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We should never get here at runtime => abort 5408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ stop("invalid allocation size"); 5409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 54103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 54113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 54123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int flags = AllocateDoubleAlignFlag::encode( 5414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->MustAllocateDoubleAligned()); 5415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { 5416b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); 5417b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5418b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); 5419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { 5420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); 5421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE); 54223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 5423b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch flags = AllocateTargetSpace::update(flags, NEW_SPACE); 54249fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block } 5425b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(Smi::FromInt(flags)); 5426b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5427b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntimeFromDeferred( 5428b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); 5429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 5430b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5431b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5432b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 543344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid LCodeGen::DoToFastProperties(LToFastProperties* instr) { 5434b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->value()).is(r0)); 543544f0eee88ff00398ff7f715fab053374d808c90dSteve Block __ push(r0); 543644f0eee88ff00398ff7f715fab053374d808c90dSteve Block CallRuntime(Runtime::kToFastProperties, 1, instr); 543744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 543844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 543944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 5440b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) { 5441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 5442086aeeaae12517475c22695a200be45495516549Ben Murdoch Label materialized; 5443086aeeaae12517475c22695a200be45495516549Ben Murdoch // Registers will be used as follows: 5444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r6 = literals array. 5445086aeeaae12517475c22695a200be45495516549Ben Murdoch // r1 = regexp literal. 5446086aeeaae12517475c22695a200be45495516549Ben Murdoch // r0 = regexp literal clone. 5447b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // r2-5 are used as temporaries. 5448b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int literal_offset = 5449b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index()); 5450b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Move(r6, instr->hydrogen()->literals()); 5451b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(r1, FieldMemOperand(r6, literal_offset)); 5452086aeeaae12517475c22695a200be45495516549Ben Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 5453086aeeaae12517475c22695a200be45495516549Ben Murdoch __ cmp(r1, ip); 5454086aeeaae12517475c22695a200be45495516549Ben Murdoch __ b(ne, &materialized); 5455086aeeaae12517475c22695a200be45495516549Ben Murdoch 5456086aeeaae12517475c22695a200be45495516549Ben Murdoch // Create regexp literal using runtime function 5457086aeeaae12517475c22695a200be45495516549Ben Murdoch // Result will be in r0. 5458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r5, Operand(Smi::FromInt(instr->hydrogen()->literal_index()))); 5459b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r4, Operand(instr->hydrogen()->pattern())); 5460b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r3, Operand(instr->hydrogen()->flags())); 5461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(r6, r5, r4, r3); 5462086aeeaae12517475c22695a200be45495516549Ben Murdoch CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); 5463086aeeaae12517475c22695a200be45495516549Ben Murdoch __ mov(r1, r0); 5464086aeeaae12517475c22695a200be45495516549Ben Murdoch 5465086aeeaae12517475c22695a200be45495516549Ben Murdoch __ bind(&materialized); 5466086aeeaae12517475c22695a200be45495516549Ben Murdoch int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; 5467086aeeaae12517475c22695a200be45495516549Ben Murdoch Label allocated, runtime_allocate; 5468086aeeaae12517475c22695a200be45495516549Ben Murdoch 5469b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Allocate(size, r0, r2, r3, &runtime_allocate, TAG_OBJECT); 5470086aeeaae12517475c22695a200be45495516549Ben Murdoch __ jmp(&allocated); 5471086aeeaae12517475c22695a200be45495516549Ben Murdoch 5472086aeeaae12517475c22695a200be45495516549Ben Murdoch __ bind(&runtime_allocate); 5473086aeeaae12517475c22695a200be45495516549Ben Murdoch __ mov(r0, Operand(Smi::FromInt(size))); 5474086aeeaae12517475c22695a200be45495516549Ben Murdoch __ Push(r1, r0); 5475086aeeaae12517475c22695a200be45495516549Ben Murdoch CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); 5476086aeeaae12517475c22695a200be45495516549Ben Murdoch __ pop(r1); 5477086aeeaae12517475c22695a200be45495516549Ben Murdoch 5478086aeeaae12517475c22695a200be45495516549Ben Murdoch __ bind(&allocated); 5479086aeeaae12517475c22695a200be45495516549Ben Murdoch // Copy the content into the newly allocated memory. 5480b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CopyFields(r0, r1, double_scratch0(), size / kPointerSize); 5481b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5482b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5483b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5484b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) { 5485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 5486086aeeaae12517475c22695a200be45495516549Ben Murdoch // Use the fast case closure allocation code that allocates in new 5487086aeeaae12517475c22695a200be45495516549Ben Murdoch // space for nested functions that don't need literals cloning. 54881e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block bool pretenure = instr->hydrogen()->pretenure(); 5489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!pretenure && instr->hydrogen()->has_no_literals()) { 5490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FastNewClosureStub stub(isolate(), instr->hydrogen()->strict_mode(), 5491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->hydrogen()->kind()); 5492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r2, Operand(instr->hydrogen()->shared_info())); 5493086aeeaae12517475c22695a200be45495516549Ben Murdoch CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); 5494086aeeaae12517475c22695a200be45495516549Ben Murdoch } else { 5495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r2, Operand(instr->hydrogen()->shared_info())); 5496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(r1, Operand(pretenure ? factory()->true_value() 5497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : factory()->false_value())); 5498086aeeaae12517475c22695a200be45495516549Ben Murdoch __ Push(cp, r2, r1); 5499086aeeaae12517475c22695a200be45495516549Ben Murdoch CallRuntime(Runtime::kNewClosure, 3, instr); 5500086aeeaae12517475c22695a200be45495516549Ben Murdoch } 5501b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5502b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5503b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5504b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTypeof(LTypeof* instr) { 5505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 5506086aeeaae12517475c22695a200be45495516549Ben Murdoch __ push(input); 5507086aeeaae12517475c22695a200be45495516549Ben Murdoch CallRuntime(Runtime::kTypeof, 1, instr); 5508b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5509b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5510b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5511b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { 5512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register input = ToRegister(instr->value()); 5513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Condition final_branch_condition = EmitTypeofIs(instr->TrueLabel(chunk_), 5515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->FalseLabel(chunk_), 5516b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch input, 5517b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch instr->type_literal()); 55183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (final_branch_condition != kNoCondition) { 5519b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, final_branch_condition); 55203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 5521b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5522b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5523b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5524b0fe1620dcb4135ac3ab2d66ff93072373911299Ben MurdochCondition LCodeGen::EmitTypeofIs(Label* true_label, 5525b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Label* false_label, 5526b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Register input, 5527b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Handle<String> type_name) { 55281e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block Condition final_branch_condition = kNoCondition; 55299fac840a46e8b7e26894f4792ba26dde14c56b04Steve Block Register scratch = scratch0(); 5530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Factory* factory = isolate()->factory(); 5531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (String::Equals(type_name, factory->number_string())) { 5532e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, true_label); 5533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareRoot(scratch, Heap::kHeapNumberMapRootIndex); 5535b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = eq; 5536b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->string_string())) { 5538e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareObjectType(input, scratch, no_reg, FIRST_NONSTRING_TYPE); 5540e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ b(ge, false_label); 5541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitFieldOffset)); 5542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << Map::kIsUndetectable)); 5543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch final_branch_condition = eq; 5544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->symbol_string())) { 5546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ JumpIfSmi(input, false_label); 5547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareObjectType(input, scratch, no_reg, SYMBOL_TYPE); 5548e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch final_branch_condition = eq; 5549b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->boolean_string())) { 5551e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kTrueValueRootIndex); 5552b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(eq, true_label); 5553e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kFalseValueRootIndex); 5554b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = eq; 5555b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->undefined_string())) { 5557e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ CompareRoot(input, Heap::kUndefinedValueRootIndex); 5558b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(eq, true_label); 5559e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5560b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Check for undetectable objects => true. 5561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(scratch, FieldMemOperand(input, HeapObject::kMapOffset)); 5562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(scratch, Map::kBitFieldOffset)); 5563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << Map::kIsUndetectable)); 5564b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch final_branch_condition = ne; 5565b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->function_string())) { 55673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); 5568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register type_reg = scratch; 5569e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareObjectType(input, scratch, type_reg, JS_FUNCTION_TYPE); 55713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(eq, true_label); 5572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(type_reg, Operand(JS_FUNCTION_PROXY_TYPE)); 55733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch final_branch_condition = eq; 5574b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (String::Equals(type_name, factory->object_string())) { 5576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register map = scratch; 5577e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch __ JumpIfSmi(input, false_label); 5578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CompareRoot(input, Heap::kNullValueRootIndex); 5579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(eq, true_label); 5580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CheckObjectTypeRange(input, 5581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch map, 5582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, 5583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LAST_NONCALLABLE_SPEC_OBJECT_TYPE, 5584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false_label); 5585b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Check for undetectable objects => false. 5586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldrb(scratch, FieldMemOperand(map, Map::kBitFieldOffset)); 5587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(scratch, Operand(1 << Map::kIsUndetectable)); 5588e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch final_branch_condition = eq; 5589b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5590b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } else { 5591b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch __ b(false_label); 5592b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 5593b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5594b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return final_branch_condition; 5595b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5596b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5597b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 55981e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { 5599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register temp1 = ToRegister(instr->temp()); 56001e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56011e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block EmitIsConstructCall(temp1, scratch0()); 5602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EmitBranch(instr, eq); 56031e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 56041e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56051e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56061e0659c275bb392c045087af4f6b0d7565cb3d77Steve Blockvoid LCodeGen::EmitIsConstructCall(Register temp1, Register temp2) { 5607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!temp1.is(temp2)); 56081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Get the frame pointer for the calling frame. 56091e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(temp1, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); 56101e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56111e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Skip the arguments adaptor frame if it exists. 56121e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(temp2, MemOperand(temp1, StandardFrameConstants::kContextOffset)); 56131e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(temp2, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); 5614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kCallerFPOffset), eq); 56151e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56161e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // Check the marker in the calling frame. 56171e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ ldr(temp1, MemOperand(temp1, StandardFrameConstants::kMarkerOffset)); 56181e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block __ cmp(temp1, Operand(Smi::FromInt(StackFrame::CONSTRUCT))); 56191e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block} 56201e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 56211e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 5622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { 5623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!info()->IsStub()) { 5624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Ensure that we have enough space after the previous lazy-bailout 5625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // instruction for patching the code here. 5626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int current_pc = masm()->pc_offset(); 5627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (current_pc < last_lazy_deopt_pc_ + space_needed) { 5628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Block literal pool emission for duration of padding. 5629b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::BlockConstPoolScope block_const_pool(masm()); 5630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; 5631b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(0, padding_size % Assembler::kInstrSize); 5632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (padding_size > 0) { 5633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ nop(); 5634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch padding_size -= Assembler::kInstrSize; 5635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 56362b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 56372b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch } 56382b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch last_lazy_deopt_pc_ = masm()->pc_offset(); 56392b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch} 56402b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 56412b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch 5642b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoLazyBailout(LLazyBailout* instr) { 5643b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch last_lazy_deopt_pc_ = masm()->pc_offset(); 5644b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 56452b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 56462b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); 56472b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 5648b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5649b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5650b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5651b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoDeoptimize(LDeoptimize* instr) { 5652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::BailoutType type = instr->hydrogen()->type(); 5653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(danno): Stubs expect all deopts to be lazy for historical reasons (the 5654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // needed return address), even though the implementation of LAZY and EAGER is 5655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // now identical. When LAZY is eventually completely folded into EAGER, remove 5656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the special case below. 5657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (info()->IsStub() && type == Deoptimizer::EAGER) { 5658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch type = Deoptimizer::LAZY; 5659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(al, instr, instr->hydrogen()->reason(), type); 5662b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5663b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5664b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDummy(LDummy* instr) { 5666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Nothing to see here, move on! 5667257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch} 5668257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5669257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDummyUse(LDummyUse* instr) { 5671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Nothing to see here, move on! 5672b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 56753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { 5676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LoadContextFromDeferred(instr->context()); 56782b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kStackGuard); 56792b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RecordSafepointWithLazyDeopt( 56802b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS); 5681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 56822b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 56832b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); 56843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 56853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 56863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 5687b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoStackCheck(LStackCheck* instr) { 5688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredStackCheck FINAL : public LDeferredCode { 56893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch public: 56903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) 56913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch : LDeferredCode(codegen), instr_(instr) { } 5692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 5693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredStackCheck(instr_); 5694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 56963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch private: 56973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch LStackCheck* instr_; 56983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch }; 56993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 5700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->HasEnvironment()); 57012b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch LEnvironment* env = instr->environment(); 57022b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // There is no LLazyBailout instruction for stack-checks. We have to 57032b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // prepare for lazy deoptimization explicitly here. 57043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (instr->hydrogen()->is_function_entry()) { 57053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Perform stack overflow check. 57063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Label done; 57073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ LoadRoot(ip, Heap::kStackLimitRootIndex); 57083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(sp, Operand(ip)); 57093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ b(hs, &done); 5710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<Code> stack_check = isolate()->builtins()->StackCheck(); 5711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PredictableCodeSizeScope predictable(masm(), 5712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCodeSize(stack_check, RelocInfo::CODE_TARGET)); 5713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->context()->IsRegister()); 5714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(ToRegister(instr->context()).is(cp)); 5715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallCode(stack_check, RelocInfo::CODE_TARGET, instr); 57163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(&done); 57173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 5718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(instr->hydrogen()->is_backwards_branch()); 57193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch // Perform stack overflow check if this goto needs it before jumping. 57203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DeferredStackCheck* deferred_stack_check = 5721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new(zone()) DeferredStackCheck(this, instr); 57223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ LoadRoot(ip, Heap::kStackLimitRootIndex); 57233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ cmp(sp, Operand(ip)); 57243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ b(lo, deferred_stack_check->entry()); 5725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); 57263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch __ bind(instr->done_label()); 57273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch deferred_stack_check->SetExit(instr->done_label()); 57282b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); 57292b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // Don't record a deoptimization index for the safepoint here. 57302b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // This will be done explicitly when emitting call and the safepoint in 57312b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch // the deferred code. 57323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 5733b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5734b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5735b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5736b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid LCodeGen::DoOsrEntry(LOsrEntry* instr) { 57371e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // This is a pseudo-instruction that ensures that the environment here is 57381e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // properly registered for deoptimization and records the assembler's PC 57391e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // offset. 57401e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block LEnvironment* environment = instr->environment(); 57411e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block 57421e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // If the environment were already registered, we would have no way of 57431e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block // backpatching it with the spill slot operands. 5744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!environment->HasBeenRegistered()); 57452b4ba1175df6a5a6b9b5cda034189197bf6565ecBen Murdoch RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); 5746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch GenerateOsrPrologue(); 5748b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 5749b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5750b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 57513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) { 57523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); 57533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(r0, ip); 5754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 57553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register null_value = r5; 57573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(null_value, Heap::kNullValueRootIndex); 57583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(r0, null_value); 5759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 57603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ SmiTst(r0); 5762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 57633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); 57653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CompareObjectType(r0, r1, r1, LAST_JS_PROXY_TYPE); 5766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(le, instr); 57673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label use_cache, call_runtime; 57693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ CheckEnumCache(null_value, &call_runtime); 57703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset)); 57723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&use_cache); 57733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Get the set of properties to enumerate. 57753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&call_runtime); 57763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ push(r0); 57773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); 57783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset)); 57803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadRoot(ip, Heap::kMetaMapRootIndex); 57813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(r1, ip); 5782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 57833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&use_cache); 57843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 57853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 57873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { 57883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register map = ToRegister(instr->map()); 57893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 5790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Label load_cache, done; 5791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ EnumLength(result, map); 5792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand(Smi::FromInt(0))); 5793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, &load_cache); 5794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(result, Operand(isolate()->factory()->empty_fixed_array())); 5795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ jmp(&done); 5796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&load_cache); 57983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ LoadInstanceDescriptors(map, result); 57993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, 5800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FieldMemOperand(result, DescriptorArray::kEnumCacheOffset)); 58013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, 58023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FieldMemOperand(result, FixedArray::SizeFor(instr->idx()))); 5803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(result, Operand::Zero()); 5804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(eq, instr); 5805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(&done); 58073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 58083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoCheckMapValue(LCheckMapValue* instr) { 58113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object = ToRegister(instr->value()); 58123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register map = ToRegister(instr->map()); 58133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(scratch0(), FieldMemOperand(object, HeapObject::kMapOffset)); 58143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ cmp(map, scratch0()); 5815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeoptimizeIf(ne, instr); 5816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoDeferredLoadMutableDouble(LLoadFieldByIndex* instr, 5820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result, 5821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object, 5822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index) { 5823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PushSafepointRegistersScope scope(this); 5824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(object); 5825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(index); 5826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(cp, Operand::Zero()); 5827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ CallRuntimeSaveDoubles(Runtime::kLoadMutableDouble); 5828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepointWithRegisters( 5829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr->pointer_map(), 2, Safepoint::kNoLazyDeopt); 5830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ StoreToSafepointRegisterSlot(r0, result); 58313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 58323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) { 5835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class DeferredLoadMutableDouble FINAL : public LDeferredCode { 5836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 5837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredLoadMutableDouble(LCodeGen* codegen, 5838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LLoadFieldByIndex* instr, 5839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result, 5840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object, 5841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index) 5842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : LDeferredCode(codegen), 5843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch instr_(instr), 5844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result_(result), 5845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_(object), 5846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index_(index) { 5847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void Generate() OVERRIDE { 5849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch codegen()->DoDeferredLoadMutableDouble(instr_, result_, object_, index_); 5850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 5851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual LInstruction* instr() OVERRIDE { return instr_; } 5852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 5853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LLoadFieldByIndex* instr_; 5854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register result_; 5855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register object_; 5856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register index_; 5857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 5858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 58593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register object = ToRegister(instr->object()); 58603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register index = ToRegister(instr->index()); 58613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register result = ToRegister(instr->result()); 58623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Register scratch = scratch0(); 58633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeferredLoadMutableDouble* deferred; 5865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deferred = new(zone()) DeferredLoadMutableDouble( 5866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch this, instr, result, object, index); 5867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 58683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Label out_of_object, done; 5869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ tst(index, Operand(Smi::FromInt(1))); 5871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ b(ne, deferred->entry()); 5872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ mov(index, Operand(index, ASR, 1)); 5873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ cmp(index, Operand::Zero()); 58753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(lt, &out_of_object); 58763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 5877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ add(scratch, object, Operand::PointerOffsetFromSmiKey(index)); 58783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(scratch, JSObject::kHeaderSize)); 58793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ b(&done); 58813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 58823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&out_of_object); 58833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(object, JSObject::kPropertiesOffset)); 58843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Index is equal to negated out of object property index plus 1. 5885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); 5886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index)); 58873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ ldr(result, FieldMemOperand(scratch, 58883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FixedArray::kHeaderSize - kPointerSize)); 5889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ bind(deferred->exit()); 58903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch __ bind(&done); 58913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 5892257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5893257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 5894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { 5895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Register context = ToRegister(instr->context()); 5896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ str(context, MemOperand(fp, StandardFrameConstants::kContextOffset)); 5897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { 5901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<ScopeInfo> scope_info = instr->scope_info(); 5902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ Push(scope_info); 5903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch __ push(ToRegister(instr->function())); 5904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CallRuntime(Runtime::kPushBlockContext, 2, instr); 5905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RecordSafepoint(Safepoint::kNoLazyDeopt); 5906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 5907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5909b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch#undef __ 5910b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 5911b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} } // namespace v8::internal 5912