Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5 | #include "src/v8.h" |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 6 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 7 | #if V8_TARGET_ARCH_X64 |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 8 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 9 | #include "src/base/bits.h" |
| 10 | #include "src/code-factory.h" |
| 11 | #include "src/code-stubs.h" |
| 12 | #include "src/hydrogen-osr.h" |
| 13 | #include "src/ic/ic.h" |
| 14 | #include "src/ic/stub-cache.h" |
| 15 | #include "src/x64/lithium-codegen-x64.h" |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 16 | |
| 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | |
| 20 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 21 | // When invoking builtins, we need to record the safepoint in the middle of |
| 22 | // the invoke instruction sequence generated by the macro assembler. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | class SafepointGenerator FINAL : public CallWrapper { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 24 | public: |
| 25 | SafepointGenerator(LCodeGen* codegen, |
| 26 | LPointerMap* pointers, |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 27 | Safepoint::DeoptMode mode) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 28 | : codegen_(codegen), |
| 29 | pointers_(pointers), |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 30 | deopt_mode_(mode) { } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 31 | virtual ~SafepointGenerator() {} |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 32 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 33 | void BeforeCall(int call_size) const OVERRIDE {} |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 34 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 35 | void AfterCall() const OVERRIDE { |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 36 | codegen_->RecordSafepoint(pointers_, deopt_mode_); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | private: |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 40 | LCodeGen* codegen_; |
| 41 | LPointerMap* pointers_; |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 42 | Safepoint::DeoptMode deopt_mode_; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 43 | }; |
| 44 | |
| 45 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 46 | #define __ masm()-> |
| 47 | |
| 48 | bool LCodeGen::GenerateCode() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 49 | LPhase phase("Z_Code generation", chunk()); |
| 50 | DCHECK(is_unused()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 51 | status_ = GENERATING; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 52 | |
| 53 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 54 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 55 | // the frame (that is done in GeneratePrologue). |
| 56 | FrameScope frame_scope(masm_, StackFrame::MANUAL); |
| 57 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 58 | return GeneratePrologue() && |
| 59 | GenerateBody() && |
| 60 | GenerateDeferredCode() && |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 61 | GenerateJumpTable() && |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 62 | GenerateSafepointTable(); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | void LCodeGen::FinishCode(Handle<Code> code) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 67 | DCHECK(is_done()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 68 | code->set_stack_slots(GetStackSlotCount()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 69 | code->set_safepoint_table_offset(safepoints_.GetCodeOffset()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 70 | if (code->is_optimized_code()) RegisterWeakObjectsInOptimizedCode(code); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 71 | PopulateDeoptimizationData(code); |
| 72 | } |
| 73 | |
| 74 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 75 | #ifdef _MSC_VER |
| 76 | void LCodeGen::MakeSureStackPagesMapped(int offset) { |
| 77 | const int kPageSize = 4 * KB; |
| 78 | for (offset -= kPageSize; offset > 0; offset -= kPageSize) { |
| 79 | __ movp(Operand(rsp, offset), rax); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 80 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 81 | } |
| 82 | #endif |
| 83 | |
| 84 | |
| 85 | void LCodeGen::SaveCallerDoubles() { |
| 86 | DCHECK(info()->saves_caller_doubles()); |
| 87 | DCHECK(NeedsEagerFrame()); |
| 88 | Comment(";;; Save clobbered callee double registers"); |
| 89 | int count = 0; |
| 90 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 91 | BitVector::Iterator save_iterator(doubles); |
| 92 | while (!save_iterator.Done()) { |
| 93 | __ movsd(MemOperand(rsp, count * kDoubleSize), |
| 94 | XMMRegister::FromAllocationIndex(save_iterator.Current())); |
| 95 | save_iterator.Advance(); |
| 96 | count++; |
| 97 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 101 | void LCodeGen::RestoreCallerDoubles() { |
| 102 | DCHECK(info()->saves_caller_doubles()); |
| 103 | DCHECK(NeedsEagerFrame()); |
| 104 | Comment(";;; Restore clobbered callee double registers"); |
| 105 | BitVector* doubles = chunk()->allocated_double_registers(); |
| 106 | BitVector::Iterator save_iterator(doubles); |
| 107 | int count = 0; |
| 108 | while (!save_iterator.Done()) { |
| 109 | __ movsd(XMMRegister::FromAllocationIndex(save_iterator.Current()), |
| 110 | MemOperand(rsp, count * kDoubleSize)); |
| 111 | save_iterator.Advance(); |
| 112 | count++; |
| 113 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | |
| 117 | bool LCodeGen::GeneratePrologue() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 118 | DCHECK(is_generating()); |
| 119 | |
| 120 | if (info()->IsOptimizing()) { |
| 121 | ProfileEntryHookStub::MaybeCallEntryHook(masm_); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 122 | |
| 123 | #ifdef DEBUG |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 124 | if (strlen(FLAG_stop_at) > 0 && |
| 125 | info_->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) { |
| 126 | __ int3(); |
| 127 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 128 | #endif |
| 129 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 130 | // Sloppy mode functions need to replace the receiver with the global proxy |
| 131 | // when called as functions (without an explicit receiver object). |
| 132 | if (info_->this_has_uses() && |
| 133 | info_->strict_mode() == SLOPPY && |
| 134 | !info_->is_native()) { |
| 135 | Label ok; |
| 136 | StackArgumentsAccessor args(rsp, scope()->num_parameters()); |
| 137 | __ movp(rcx, args.GetReceiverOperand()); |
| 138 | |
| 139 | __ CompareRoot(rcx, Heap::kUndefinedValueRootIndex); |
| 140 | __ j(not_equal, &ok, Label::kNear); |
| 141 | |
| 142 | __ movp(rcx, GlobalObjectOperand()); |
| 143 | __ movp(rcx, FieldOperand(rcx, GlobalObject::kGlobalProxyOffset)); |
| 144 | |
| 145 | __ movp(args.GetReceiverOperand(), rcx); |
| 146 | |
| 147 | __ bind(&ok); |
| 148 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 149 | } |
| 150 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 151 | info()->set_prologue_offset(masm_->pc_offset()); |
| 152 | if (NeedsEagerFrame()) { |
| 153 | DCHECK(!frame_is_built_); |
| 154 | frame_is_built_ = true; |
| 155 | if (info()->IsStub()) { |
| 156 | __ StubPrologue(); |
| 157 | } else { |
| 158 | __ Prologue(info()->IsCodePreAgingActive()); |
| 159 | } |
| 160 | info()->AddNoFrameRange(0, masm_->pc_offset()); |
| 161 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 162 | |
| 163 | // Reserve space for the stack slots needed by the code. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 164 | int slots = GetStackSlotCount(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 165 | if (slots > 0) { |
| 166 | if (FLAG_debug_code) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 167 | __ subp(rsp, Immediate(slots * kPointerSize)); |
| 168 | #ifdef _MSC_VER |
| 169 | MakeSureStackPagesMapped(slots * kPointerSize); |
| 170 | #endif |
| 171 | __ Push(rax); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 172 | __ Set(rax, slots); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 173 | __ Set(kScratchRegister, kSlotsZapValue); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 174 | Label loop; |
| 175 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 176 | __ movp(MemOperand(rsp, rax, times_pointer_size, 0), |
| 177 | kScratchRegister); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 178 | __ decl(rax); |
| 179 | __ j(not_zero, &loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 180 | __ Pop(rax); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 181 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 182 | __ subp(rsp, Immediate(slots * kPointerSize)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 183 | #ifdef _MSC_VER |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 184 | MakeSureStackPagesMapped(slots * kPointerSize); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 185 | #endif |
| 186 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 187 | |
| 188 | if (info()->saves_caller_doubles()) { |
| 189 | SaveCallerDoubles(); |
| 190 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 191 | } |
| 192 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 193 | // Possibly allocate a local context. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 194 | int heap_slots = info_->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 195 | if (heap_slots > 0) { |
| 196 | Comment(";;; Allocate local context"); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 197 | bool need_write_barrier = true; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 198 | // Argument to NewContext is the function, which is still in rdi. |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 199 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 200 | FastNewContextStub stub(isolate(), heap_slots); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 201 | __ CallStub(&stub); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 202 | // Result of FastNewContextStub is always in new space. |
| 203 | need_write_barrier = false; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 204 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 205 | __ Push(rdi); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 206 | __ CallRuntime(Runtime::kNewFunctionContext, 1); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 207 | } |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 208 | RecordSafepoint(Safepoint::kNoLazyDeopt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 209 | // Context is returned in rax. It replaces the context passed to us. |
| 210 | // It's saved in the stack and kept live in rsi. |
| 211 | __ movp(rsi, rax); |
| 212 | __ movp(Operand(rbp, StandardFrameConstants::kContextOffset), rax); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 213 | |
| 214 | // Copy any necessary parameters into the context. |
| 215 | int num_parameters = scope()->num_parameters(); |
| 216 | for (int i = 0; i < num_parameters; i++) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 217 | Variable* var = scope()->parameter(i); |
| 218 | if (var->IsContextSlot()) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 219 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 220 | (num_parameters - 1 - i) * kPointerSize; |
| 221 | // Load parameter from stack. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 222 | __ movp(rax, Operand(rbp, parameter_offset)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 223 | // Store it in the context. |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 224 | int context_offset = Context::SlotOffset(var->index()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | __ movp(Operand(rsi, context_offset), rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 226 | // Update the write barrier. This clobbers rax and rbx. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 227 | if (need_write_barrier) { |
| 228 | __ RecordWriteContextSlot(rsi, context_offset, rax, rbx, kSaveFPRegs); |
| 229 | } else if (FLAG_debug_code) { |
| 230 | Label done; |
| 231 | __ JumpIfInNewSpace(rsi, rax, &done, Label::kNear); |
| 232 | __ Abort(kExpectedNewSpaceObject); |
| 233 | __ bind(&done); |
| 234 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 235 | } |
| 236 | } |
| 237 | Comment(";;; End allocate local context"); |
| 238 | } |
| 239 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 240 | // Trace the call. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 241 | if (FLAG_trace && info()->IsOptimizing()) { |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 242 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 243 | } |
| 244 | return !is_aborted(); |
| 245 | } |
| 246 | |
| 247 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 248 | void LCodeGen::GenerateOsrPrologue() { |
| 249 | // Generate the OSR entry prologue at the first unknown OSR value, or if there |
| 250 | // are none, at the OSR entrypoint instruction. |
| 251 | if (osr_pc_offset_ >= 0) return; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 252 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 253 | osr_pc_offset_ = masm()->pc_offset(); |
| 254 | |
| 255 | // Adjust the frame size, subsuming the unoptimized frame into the |
| 256 | // optimized frame. |
| 257 | int slots = GetStackSlotCount() - graph()->osr()->UnoptimizedFrameSlots(); |
| 258 | DCHECK(slots >= 0); |
| 259 | __ subp(rsp, Immediate(slots * kPointerSize)); |
| 260 | } |
| 261 | |
| 262 | |
| 263 | void LCodeGen::GenerateBodyInstructionPre(LInstruction* instr) { |
| 264 | if (instr->IsCall()) { |
| 265 | EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); |
| 266 | } |
| 267 | if (!instr->IsLazyBailout() && !instr->IsGap()) { |
| 268 | safepoints_.BumpLastLazySafepointIndex(); |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | |
| 273 | void LCodeGen::GenerateBodyInstructionPost(LInstruction* instr) { |
| 274 | if (FLAG_debug_code && FLAG_enable_slow_asserts && instr->HasResult() && |
| 275 | instr->hydrogen_value()->representation().IsInteger32() && |
| 276 | instr->result()->IsRegister()) { |
| 277 | __ AssertZeroExtended(ToRegister(instr->result())); |
| 278 | } |
| 279 | |
| 280 | if (instr->HasResult() && instr->MustSignExtendResult(chunk())) { |
| 281 | // We sign extend the dehoisted key at the definition point when the pointer |
| 282 | // size is 64-bit. For x32 port, we sign extend the dehoisted key at the use |
| 283 | // points and MustSignExtendResult is always false. We can't use |
| 284 | // STATIC_ASSERT here as the pointer size is 32-bit for x32. |
| 285 | DCHECK(kPointerSize == kInt64Size); |
| 286 | if (instr->result()->IsRegister()) { |
| 287 | Register result_reg = ToRegister(instr->result()); |
| 288 | __ movsxlq(result_reg, result_reg); |
| 289 | } else { |
| 290 | // Sign extend the 32bit result in the stack slots. |
| 291 | DCHECK(instr->result()->IsStackSlot()); |
| 292 | Operand src = ToOperand(instr->result()); |
| 293 | __ movsxlq(kScratchRegister, src); |
| 294 | __ movq(src, kScratchRegister); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 295 | } |
| 296 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 300 | bool LCodeGen::GenerateJumpTable() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 301 | Label needs_frame; |
| 302 | if (jump_table_.length() > 0) { |
| 303 | Comment(";;; -------------------- Jump table --------------------"); |
| 304 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 305 | for (int i = 0; i < jump_table_.length(); i++) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 306 | Deoptimizer::JumpTableEntry* table_entry = &jump_table_[i]; |
| 307 | __ bind(&table_entry->label); |
| 308 | Address entry = table_entry->address; |
| 309 | DeoptComment(table_entry->reason); |
| 310 | if (table_entry->needs_frame) { |
| 311 | DCHECK(!info()->saves_caller_doubles()); |
| 312 | __ Move(kScratchRegister, ExternalReference::ForDeoptEntry(entry)); |
| 313 | if (needs_frame.is_bound()) { |
| 314 | __ jmp(&needs_frame); |
| 315 | } else { |
| 316 | __ bind(&needs_frame); |
| 317 | __ movp(rsi, MemOperand(rbp, StandardFrameConstants::kContextOffset)); |
| 318 | __ pushq(rbp); |
| 319 | __ movp(rbp, rsp); |
| 320 | __ Push(rsi); |
| 321 | // This variant of deopt can only be used with stubs. Since we don't |
| 322 | // have a function pointer to install in the stack frame that we're |
| 323 | // building, install a special marker there instead. |
| 324 | DCHECK(info()->IsStub()); |
| 325 | __ Move(rsi, Smi::FromInt(StackFrame::STUB)); |
| 326 | __ Push(rsi); |
| 327 | __ movp(rsi, MemOperand(rsp, kPointerSize)); |
| 328 | __ call(kScratchRegister); |
| 329 | } |
| 330 | } else { |
| 331 | if (info()->saves_caller_doubles()) { |
| 332 | DCHECK(info()->IsStub()); |
| 333 | RestoreCallerDoubles(); |
| 334 | } |
| 335 | __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 336 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 337 | } |
| 338 | return !is_aborted(); |
| 339 | } |
| 340 | |
| 341 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 342 | bool LCodeGen::GenerateDeferredCode() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 343 | DCHECK(is_generating()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 344 | if (deferred_.length() > 0) { |
| 345 | for (int i = 0; !is_aborted() && i < deferred_.length(); i++) { |
| 346 | LDeferredCode* code = deferred_[i]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 347 | |
| 348 | HValue* value = |
| 349 | instructions_->at(code->instruction_index())->hydrogen_value(); |
| 350 | RecordAndWritePosition( |
| 351 | chunk()->graph()->SourcePositionToScriptPosition(value->position())); |
| 352 | |
| 353 | Comment(";;; <@%d,#%d> " |
| 354 | "-------------------- Deferred %s --------------------", |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 355 | code->instruction_index(), |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 356 | code->instr()->hydrogen_value()->id(), |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 357 | code->instr()->Mnemonic()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 358 | __ bind(code->entry()); |
| 359 | if (NeedsDeferredFrame()) { |
| 360 | Comment(";;; Build frame"); |
| 361 | DCHECK(!frame_is_built_); |
| 362 | DCHECK(info()->IsStub()); |
| 363 | frame_is_built_ = true; |
| 364 | // Build the frame in such a way that esi isn't trashed. |
| 365 | __ pushq(rbp); // Caller's frame pointer. |
| 366 | __ Push(Operand(rbp, StandardFrameConstants::kContextOffset)); |
| 367 | __ Push(Smi::FromInt(StackFrame::STUB)); |
| 368 | __ leap(rbp, Operand(rsp, 2 * kPointerSize)); |
| 369 | Comment(";;; Deferred code"); |
| 370 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 371 | code->Generate(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 372 | if (NeedsDeferredFrame()) { |
| 373 | __ bind(code->done()); |
| 374 | Comment(";;; Destroy frame"); |
| 375 | DCHECK(frame_is_built_); |
| 376 | frame_is_built_ = false; |
| 377 | __ movp(rsp, rbp); |
| 378 | __ popq(rbp); |
| 379 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 380 | __ jmp(code->exit()); |
| 381 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | // Deferred code is the last part of the instruction sequence. Mark |
| 385 | // the generated code as done unless we bailed out. |
| 386 | if (!is_aborted()) status_ = DONE; |
| 387 | return !is_aborted(); |
| 388 | } |
| 389 | |
| 390 | |
| 391 | bool LCodeGen::GenerateSafepointTable() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 392 | DCHECK(is_done()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 393 | safepoints_.Emit(masm(), GetStackSlotCount()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 394 | return !is_aborted(); |
| 395 | } |
| 396 | |
| 397 | |
| 398 | Register LCodeGen::ToRegister(int index) const { |
| 399 | return Register::FromAllocationIndex(index); |
| 400 | } |
| 401 | |
| 402 | |
| 403 | XMMRegister LCodeGen::ToDoubleRegister(int index) const { |
| 404 | return XMMRegister::FromAllocationIndex(index); |
| 405 | } |
| 406 | |
| 407 | |
| 408 | Register LCodeGen::ToRegister(LOperand* op) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 409 | DCHECK(op->IsRegister()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 410 | return ToRegister(op->index()); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | XMMRegister LCodeGen::ToDoubleRegister(LOperand* op) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 415 | DCHECK(op->IsDoubleRegister()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 416 | return ToDoubleRegister(op->index()); |
| 417 | } |
| 418 | |
| 419 | |
| 420 | bool LCodeGen::IsInteger32Constant(LConstantOperand* op) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 421 | return chunk_->LookupLiteralRepresentation(op).IsSmiOrInteger32(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 422 | } |
| 423 | |
| 424 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 425 | bool LCodeGen::IsDehoistedKeyConstant(LConstantOperand* op) const { |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 426 | return op->IsConstantOperand() && |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 427 | chunk_->IsDehoistedKey(chunk_->LookupConstant(op)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 428 | } |
| 429 | |
| 430 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 431 | bool LCodeGen::IsSmiConstant(LConstantOperand* op) const { |
| 432 | return chunk_->LookupLiteralRepresentation(op).IsSmi(); |
| 433 | } |
| 434 | |
| 435 | |
| 436 | int32_t LCodeGen::ToInteger32(LConstantOperand* op) const { |
| 437 | return ToRepresentation(op, Representation::Integer32()); |
| 438 | } |
| 439 | |
| 440 | |
| 441 | int32_t LCodeGen::ToRepresentation(LConstantOperand* op, |
| 442 | const Representation& r) const { |
| 443 | HConstant* constant = chunk_->LookupConstant(op); |
| 444 | int32_t value = constant->Integer32Value(); |
| 445 | if (r.IsInteger32()) return value; |
| 446 | DCHECK(SmiValuesAre31Bits() && r.IsSmiOrTagged()); |
| 447 | return static_cast<int32_t>(reinterpret_cast<intptr_t>(Smi::FromInt(value))); |
| 448 | } |
| 449 | |
| 450 | |
| 451 | Smi* LCodeGen::ToSmi(LConstantOperand* op) const { |
| 452 | HConstant* constant = chunk_->LookupConstant(op); |
| 453 | return Smi::FromInt(constant->Integer32Value()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 457 | double LCodeGen::ToDouble(LConstantOperand* op) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 458 | HConstant* constant = chunk_->LookupConstant(op); |
| 459 | DCHECK(constant->HasDoubleValue()); |
| 460 | return constant->DoubleValue(); |
| 461 | } |
| 462 | |
| 463 | |
| 464 | ExternalReference LCodeGen::ToExternalReference(LConstantOperand* op) const { |
| 465 | HConstant* constant = chunk_->LookupConstant(op); |
| 466 | DCHECK(constant->HasExternalReferenceValue()); |
| 467 | return constant->ExternalReferenceValue(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 471 | Handle<Object> LCodeGen::ToHandle(LConstantOperand* op) const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 472 | HConstant* constant = chunk_->LookupConstant(op); |
| 473 | DCHECK(chunk_->LookupLiteralRepresentation(op).IsSmiOrTagged()); |
| 474 | return constant->handle(isolate()); |
| 475 | } |
| 476 | |
| 477 | |
| 478 | static int ArgumentsOffsetWithoutFrame(int index) { |
| 479 | DCHECK(index < 0); |
| 480 | return -(index + 1) * kPointerSize + kPCOnStackSize; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 481 | } |
| 482 | |
| 483 | |
| 484 | Operand LCodeGen::ToOperand(LOperand* op) const { |
| 485 | // Does not handle registers. In X64 assembler, plain registers are not |
| 486 | // representable as an Operand. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 487 | DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot()); |
| 488 | if (NeedsEagerFrame()) { |
| 489 | return Operand(rbp, StackSlotOffset(op->index())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 490 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 491 | // Retrieve parameter without eager stack-frame relative to the |
| 492 | // stack-pointer. |
| 493 | return Operand(rsp, ArgumentsOffsetWithoutFrame(op->index())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 494 | } |
| 495 | } |
| 496 | |
| 497 | |
| 498 | void LCodeGen::WriteTranslation(LEnvironment* environment, |
| 499 | Translation* translation) { |
| 500 | if (environment == NULL) return; |
| 501 | |
| 502 | // The translation includes one command per value in the environment. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 503 | int translation_size = environment->translation_size(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 504 | // The output frame height does not include the parameters. |
| 505 | int height = translation_size - environment->parameter_count(); |
| 506 | |
| 507 | WriteTranslation(environment->outer(), translation); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 508 | bool has_closure_id = !info()->closure().is_null() && |
| 509 | !info()->closure().is_identical_to(environment->closure()); |
| 510 | int closure_id = has_closure_id |
| 511 | ? DefineDeoptimizationLiteral(environment->closure()) |
| 512 | : Translation::kSelfLiteralId; |
| 513 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 514 | switch (environment->frame_type()) { |
| 515 | case JS_FUNCTION: |
| 516 | translation->BeginJSFrame(environment->ast_id(), closure_id, height); |
| 517 | break; |
| 518 | case JS_CONSTRUCT: |
| 519 | translation->BeginConstructStubFrame(closure_id, translation_size); |
| 520 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 521 | case JS_GETTER: |
| 522 | DCHECK(translation_size == 1); |
| 523 | DCHECK(height == 0); |
| 524 | translation->BeginGetterStubFrame(closure_id); |
| 525 | break; |
| 526 | case JS_SETTER: |
| 527 | DCHECK(translation_size == 2); |
| 528 | DCHECK(height == 0); |
| 529 | translation->BeginSetterStubFrame(closure_id); |
| 530 | break; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 531 | case ARGUMENTS_ADAPTOR: |
| 532 | translation->BeginArgumentsAdaptorFrame(closure_id, translation_size); |
| 533 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 534 | case STUB: |
| 535 | translation->BeginCompiledStubFrame(); |
| 536 | break; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 537 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 538 | |
| 539 | int object_index = 0; |
| 540 | int dematerialized_index = 0; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 541 | for (int i = 0; i < translation_size; ++i) { |
| 542 | LOperand* value = environment->values()->at(i); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 543 | AddToTranslation(environment, |
| 544 | translation, |
| 545 | value, |
| 546 | environment->HasTaggedValueAt(i), |
| 547 | environment->HasUint32ValueAt(i), |
| 548 | &object_index, |
| 549 | &dematerialized_index); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 550 | } |
| 551 | } |
| 552 | |
| 553 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 554 | void LCodeGen::AddToTranslation(LEnvironment* environment, |
| 555 | Translation* translation, |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 556 | LOperand* op, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 557 | bool is_tagged, |
| 558 | bool is_uint32, |
| 559 | int* object_index_pointer, |
| 560 | int* dematerialized_index_pointer) { |
| 561 | if (op == LEnvironment::materialization_marker()) { |
| 562 | int object_index = (*object_index_pointer)++; |
| 563 | if (environment->ObjectIsDuplicateAt(object_index)) { |
| 564 | int dupe_of = environment->ObjectDuplicateOfAt(object_index); |
| 565 | translation->DuplicateObject(dupe_of); |
| 566 | return; |
| 567 | } |
| 568 | int object_length = environment->ObjectLengthAt(object_index); |
| 569 | if (environment->ObjectIsArgumentsAt(object_index)) { |
| 570 | translation->BeginArgumentsObject(object_length); |
| 571 | } else { |
| 572 | translation->BeginCapturedObject(object_length); |
| 573 | } |
| 574 | int dematerialized_index = *dematerialized_index_pointer; |
| 575 | int env_offset = environment->translation_size() + dematerialized_index; |
| 576 | *dematerialized_index_pointer += object_length; |
| 577 | for (int i = 0; i < object_length; ++i) { |
| 578 | LOperand* value = environment->values()->at(env_offset + i); |
| 579 | AddToTranslation(environment, |
| 580 | translation, |
| 581 | value, |
| 582 | environment->HasTaggedValueAt(env_offset + i), |
| 583 | environment->HasUint32ValueAt(env_offset + i), |
| 584 | object_index_pointer, |
| 585 | dematerialized_index_pointer); |
| 586 | } |
| 587 | return; |
| 588 | } |
| 589 | |
| 590 | if (op->IsStackSlot()) { |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 591 | if (is_tagged) { |
| 592 | translation->StoreStackSlot(op->index()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 593 | } else if (is_uint32) { |
| 594 | translation->StoreUint32StackSlot(op->index()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 595 | } else { |
| 596 | translation->StoreInt32StackSlot(op->index()); |
| 597 | } |
| 598 | } else if (op->IsDoubleStackSlot()) { |
| 599 | translation->StoreDoubleStackSlot(op->index()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 600 | } else if (op->IsRegister()) { |
| 601 | Register reg = ToRegister(op); |
| 602 | if (is_tagged) { |
| 603 | translation->StoreRegister(reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 604 | } else if (is_uint32) { |
| 605 | translation->StoreUint32Register(reg); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 606 | } else { |
| 607 | translation->StoreInt32Register(reg); |
| 608 | } |
| 609 | } else if (op->IsDoubleRegister()) { |
| 610 | XMMRegister reg = ToDoubleRegister(op); |
| 611 | translation->StoreDoubleRegister(reg); |
| 612 | } else if (op->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 613 | HConstant* constant = chunk()->LookupConstant(LConstantOperand::cast(op)); |
| 614 | int src_index = DefineDeoptimizationLiteral(constant->handle(isolate())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 615 | translation->StoreLiteral(src_index); |
| 616 | } else { |
| 617 | UNREACHABLE(); |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 622 | void LCodeGen::CallCodeGeneric(Handle<Code> code, |
| 623 | RelocInfo::Mode mode, |
| 624 | LInstruction* instr, |
| 625 | SafepointMode safepoint_mode, |
| 626 | int argc) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 627 | DCHECK(instr != NULL); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 628 | __ call(code, mode); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 629 | RecordSafepointWithLazyDeopt(instr, safepoint_mode, argc); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 630 | |
| 631 | // Signal that we don't inline smi code before these stubs in the |
| 632 | // optimizing code generator. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 633 | if (code->kind() == Code::BINARY_OP_IC || |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 634 | code->kind() == Code::COMPARE_IC) { |
| 635 | __ nop(); |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 640 | void LCodeGen::CallCode(Handle<Code> code, |
| 641 | RelocInfo::Mode mode, |
| 642 | LInstruction* instr) { |
| 643 | CallCodeGeneric(code, mode, instr, RECORD_SIMPLE_SAFEPOINT, 0); |
| 644 | } |
| 645 | |
| 646 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 647 | void LCodeGen::CallRuntime(const Runtime::Function* function, |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 648 | int num_arguments, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 649 | LInstruction* instr, |
| 650 | SaveFPRegsMode save_doubles) { |
| 651 | DCHECK(instr != NULL); |
| 652 | DCHECK(instr->HasPointerMap()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 653 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 654 | __ CallRuntime(function, num_arguments, save_doubles); |
| 655 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 656 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT, 0); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 660 | void LCodeGen::LoadContextFromDeferred(LOperand* context) { |
| 661 | if (context->IsRegister()) { |
| 662 | if (!ToRegister(context).is(rsi)) { |
| 663 | __ movp(rsi, ToRegister(context)); |
| 664 | } |
| 665 | } else if (context->IsStackSlot()) { |
| 666 | __ movp(rsi, ToOperand(context)); |
| 667 | } else if (context->IsConstantOperand()) { |
| 668 | HConstant* constant = |
| 669 | chunk_->LookupConstant(LConstantOperand::cast(context)); |
| 670 | __ Move(rsi, Handle<Object>::cast(constant->handle(isolate()))); |
| 671 | } else { |
| 672 | UNREACHABLE(); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | |
| 677 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 678 | void LCodeGen::CallRuntimeFromDeferred(Runtime::FunctionId id, |
| 679 | int argc, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 680 | LInstruction* instr, |
| 681 | LOperand* context) { |
| 682 | LoadContextFromDeferred(context); |
| 683 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 684 | __ CallRuntimeSaveDoubles(id); |
| 685 | RecordSafepointWithRegisters( |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 686 | instr->pointer_map(), argc, Safepoint::kNoLazyDeopt); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 690 | void LCodeGen::RegisterEnvironmentForDeoptimization(LEnvironment* environment, |
| 691 | Safepoint::DeoptMode mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 692 | environment->set_has_been_used(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 693 | if (!environment->HasBeenRegistered()) { |
| 694 | // Physical stack frame layout: |
| 695 | // -x ............. -4 0 ..................................... y |
| 696 | // [incoming arguments] [spill slots] [pushed outgoing arguments] |
| 697 | |
| 698 | // Layout of the environment: |
| 699 | // 0 ..................................................... size-1 |
| 700 | // [parameters] [locals] [expression stack including arguments] |
| 701 | |
| 702 | // Layout of the translation: |
| 703 | // 0 ........................................................ size - 1 + 4 |
| 704 | // [expression stack including arguments] [locals] [4 words] [parameters] |
| 705 | // |>------------ translation_size ------------<| |
| 706 | |
| 707 | int frame_count = 0; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 708 | int jsframe_count = 0; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 709 | for (LEnvironment* e = environment; e != NULL; e = e->outer()) { |
| 710 | ++frame_count; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 711 | if (e->frame_type() == JS_FUNCTION) { |
| 712 | ++jsframe_count; |
| 713 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 714 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 715 | Translation translation(&translations_, frame_count, jsframe_count, zone()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 716 | WriteTranslation(environment, &translation); |
| 717 | int deoptimization_index = deoptimizations_.length(); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 718 | int pc_offset = masm()->pc_offset(); |
| 719 | environment->Register(deoptimization_index, |
| 720 | translation.index(), |
| 721 | (mode == Safepoint::kLazyDeopt) ? pc_offset : -1); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 722 | deoptimizations_.Add(environment, environment->zone()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 723 | } |
| 724 | } |
| 725 | |
| 726 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 727 | void LCodeGen::DeoptimizeIf(Condition cc, LInstruction* instr, |
| 728 | const char* detail, |
| 729 | Deoptimizer::BailoutType bailout_type) { |
| 730 | LEnvironment* environment = instr->environment(); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 731 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 732 | DCHECK(environment->HasBeenRegistered()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 733 | int id = environment->deoptimization_index(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 734 | DCHECK(info()->IsOptimizing() || info()->IsStub()); |
| 735 | Address entry = |
| 736 | Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 737 | if (entry == NULL) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 738 | Abort(kBailoutWasNotPrepared); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 739 | return; |
| 740 | } |
| 741 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 742 | if (DeoptEveryNTimes()) { |
| 743 | ExternalReference count = ExternalReference::stress_deopt_count(isolate()); |
| 744 | Label no_deopt; |
| 745 | __ pushfq(); |
| 746 | __ pushq(rax); |
| 747 | Operand count_operand = masm()->ExternalOperand(count, kScratchRegister); |
| 748 | __ movl(rax, count_operand); |
| 749 | __ subl(rax, Immediate(1)); |
| 750 | __ j(not_zero, &no_deopt, Label::kNear); |
| 751 | if (FLAG_trap_on_deopt) __ int3(); |
| 752 | __ movl(rax, Immediate(FLAG_deopt_every_n_times)); |
| 753 | __ movl(count_operand, rax); |
| 754 | __ popq(rax); |
| 755 | __ popfq(); |
| 756 | DCHECK(frame_is_built_); |
| 757 | __ call(entry, RelocInfo::RUNTIME_ENTRY); |
| 758 | __ bind(&no_deopt); |
| 759 | __ movl(count_operand, rax); |
| 760 | __ popq(rax); |
| 761 | __ popfq(); |
| 762 | } |
| 763 | |
| 764 | if (info()->ShouldTrapOnDeopt()) { |
| 765 | Label done; |
| 766 | if (cc != no_condition) { |
| 767 | __ j(NegateCondition(cc), &done, Label::kNear); |
| 768 | } |
| 769 | __ int3(); |
| 770 | __ bind(&done); |
| 771 | } |
| 772 | |
| 773 | Deoptimizer::Reason reason(instr->hydrogen_value()->position().raw(), |
| 774 | instr->Mnemonic(), detail); |
| 775 | DCHECK(info()->IsStub() || frame_is_built_); |
| 776 | // Go through jump table if we need to handle condition, build frame, or |
| 777 | // restore caller doubles. |
| 778 | if (cc == no_condition && frame_is_built_ && |
| 779 | !info()->saves_caller_doubles()) { |
| 780 | DeoptComment(reason); |
| 781 | __ call(entry, RelocInfo::RUNTIME_ENTRY); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 782 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 783 | Deoptimizer::JumpTableEntry table_entry(entry, reason, bailout_type, |
| 784 | !frame_is_built_); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 785 | // We often have several deopts to the same entry, reuse the last |
| 786 | // jump entry if this is the case. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 787 | if (jump_table_.is_empty() || |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 788 | !table_entry.IsEquivalentTo(jump_table_.last())) { |
| 789 | jump_table_.Add(table_entry, zone()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 790 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 791 | if (cc == no_condition) { |
| 792 | __ jmp(&jump_table_.last().label); |
| 793 | } else { |
| 794 | __ j(cc, &jump_table_.last().label); |
| 795 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 796 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 797 | } |
| 798 | |
| 799 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 800 | void LCodeGen::DeoptimizeIf(Condition cc, LInstruction* instr, |
| 801 | const char* detail) { |
| 802 | Deoptimizer::BailoutType bailout_type = info()->IsStub() |
| 803 | ? Deoptimizer::LAZY |
| 804 | : Deoptimizer::EAGER; |
| 805 | DeoptimizeIf(cc, instr, detail, bailout_type); |
| 806 | } |
| 807 | |
| 808 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 809 | void LCodeGen::PopulateDeoptimizationData(Handle<Code> code) { |
| 810 | int length = deoptimizations_.length(); |
| 811 | if (length == 0) return; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 812 | Handle<DeoptimizationInputData> data = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 813 | DeoptimizationInputData::New(isolate(), length, TENURED); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 814 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 815 | Handle<ByteArray> translations = |
| 816 | translations_.CreateByteArray(isolate()->factory()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 817 | data->SetTranslationByteArray(*translations); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 818 | data->SetInlinedFunctionCount(Smi::FromInt(inlined_function_count_)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 819 | data->SetOptimizationId(Smi::FromInt(info_->optimization_id())); |
| 820 | if (info_->IsOptimizing()) { |
| 821 | // Reference to shared function info does not change between phases. |
| 822 | AllowDeferredHandleDereference allow_handle_dereference; |
| 823 | data->SetSharedFunctionInfo(*info_->shared_info()); |
| 824 | } else { |
| 825 | data->SetSharedFunctionInfo(Smi::FromInt(0)); |
| 826 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 827 | |
| 828 | Handle<FixedArray> literals = |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 829 | factory()->NewFixedArray(deoptimization_literals_.length(), TENURED); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 830 | { AllowDeferredHandleDereference copy_handles; |
| 831 | for (int i = 0; i < deoptimization_literals_.length(); i++) { |
| 832 | literals->set(i, *deoptimization_literals_[i]); |
| 833 | } |
| 834 | data->SetLiteralArray(*literals); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 835 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 836 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 837 | data->SetOsrAstId(Smi::FromInt(info_->osr_ast_id().ToInt())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 838 | data->SetOsrPcOffset(Smi::FromInt(osr_pc_offset_)); |
| 839 | |
| 840 | // Populate the deoptimization entries. |
| 841 | for (int i = 0; i < length; i++) { |
| 842 | LEnvironment* env = deoptimizations_[i]; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 843 | data->SetAstId(i, env->ast_id()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 844 | data->SetTranslationIndex(i, Smi::FromInt(env->translation_index())); |
| 845 | data->SetArgumentsStackHeight(i, |
| 846 | Smi::FromInt(env->arguments_stack_height())); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 847 | data->SetPc(i, Smi::FromInt(env->pc_offset())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 848 | } |
| 849 | code->set_deoptimization_data(*data); |
| 850 | } |
| 851 | |
| 852 | |
| 853 | int LCodeGen::DefineDeoptimizationLiteral(Handle<Object> literal) { |
| 854 | int result = deoptimization_literals_.length(); |
| 855 | for (int i = 0; i < deoptimization_literals_.length(); ++i) { |
| 856 | if (deoptimization_literals_[i].is_identical_to(literal)) return i; |
| 857 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 858 | deoptimization_literals_.Add(literal, zone()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 859 | return result; |
| 860 | } |
| 861 | |
| 862 | |
| 863 | void LCodeGen::PopulateDeoptimizationLiteralsWithInlinedFunctions() { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 864 | DCHECK(deoptimization_literals_.length() == 0); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 865 | |
| 866 | const ZoneList<Handle<JSFunction> >* inlined_closures = |
| 867 | chunk()->inlined_closures(); |
| 868 | |
| 869 | for (int i = 0, length = inlined_closures->length(); |
| 870 | i < length; |
| 871 | i++) { |
| 872 | DefineDeoptimizationLiteral(inlined_closures->at(i)); |
| 873 | } |
| 874 | |
| 875 | inlined_function_count_ = deoptimization_literals_.length(); |
| 876 | } |
| 877 | |
| 878 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 879 | void LCodeGen::RecordSafepointWithLazyDeopt( |
| 880 | LInstruction* instr, SafepointMode safepoint_mode, int argc) { |
| 881 | if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) { |
| 882 | RecordSafepoint(instr->pointer_map(), Safepoint::kLazyDeopt); |
| 883 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 884 | DCHECK(safepoint_mode == RECORD_SAFEPOINT_WITH_REGISTERS); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 885 | RecordSafepointWithRegisters( |
| 886 | instr->pointer_map(), argc, Safepoint::kLazyDeopt); |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 891 | void LCodeGen::RecordSafepoint( |
| 892 | LPointerMap* pointers, |
| 893 | Safepoint::Kind kind, |
| 894 | int arguments, |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 895 | Safepoint::DeoptMode deopt_mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 896 | DCHECK(kind == expected_safepoint_kind_); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 897 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 898 | const ZoneList<LOperand*>* operands = pointers->GetNormalizedOperands(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 899 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 900 | Safepoint safepoint = safepoints_.DefineSafepoint(masm(), |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 901 | kind, arguments, deopt_mode); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 902 | for (int i = 0; i < operands->length(); i++) { |
| 903 | LOperand* pointer = operands->at(i); |
| 904 | if (pointer->IsStackSlot()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 905 | safepoint.DefinePointerSlot(pointer->index(), zone()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 906 | } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 907 | safepoint.DefinePointerRegister(ToRegister(pointer), zone()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 908 | } |
| 909 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | |
| 913 | void LCodeGen::RecordSafepoint(LPointerMap* pointers, |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 914 | Safepoint::DeoptMode deopt_mode) { |
| 915 | RecordSafepoint(pointers, Safepoint::kSimple, 0, deopt_mode); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 916 | } |
| 917 | |
| 918 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 919 | void LCodeGen::RecordSafepoint(Safepoint::DeoptMode deopt_mode) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 920 | LPointerMap empty_pointers(zone()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 921 | RecordSafepoint(&empty_pointers, deopt_mode); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 922 | } |
| 923 | |
| 924 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 925 | void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers, |
| 926 | int arguments, |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 927 | Safepoint::DeoptMode deopt_mode) { |
| 928 | RecordSafepoint(pointers, Safepoint::kWithRegisters, arguments, deopt_mode); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 929 | } |
| 930 | |
| 931 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 932 | void LCodeGen::RecordAndWritePosition(int position) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 933 | if (position == RelocInfo::kNoPosition) return; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 934 | masm()->positions_recorder()->RecordPosition(position); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 935 | masm()->positions_recorder()->WriteRecordedPositions(); |
| 936 | } |
| 937 | |
| 938 | |
| 939 | static const char* LabelType(LLabel* label) { |
| 940 | if (label->is_loop_header()) return " (loop header)"; |
| 941 | if (label->is_osr_entry()) return " (OSR entry)"; |
| 942 | return ""; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 943 | } |
| 944 | |
| 945 | |
| 946 | void LCodeGen::DoLabel(LLabel* label) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 947 | Comment(";;; <@%d,#%d> -------------------- B%d%s --------------------", |
| 948 | current_instruction_, |
| 949 | label->hydrogen_value()->id(), |
| 950 | label->block_id(), |
| 951 | LabelType(label)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 952 | __ bind(label->label()); |
| 953 | current_block_ = label->block_id(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 954 | DoGap(label); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 955 | } |
| 956 | |
| 957 | |
| 958 | void LCodeGen::DoParallelMove(LParallelMove* move) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 959 | resolver_.Resolve(move); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 960 | } |
| 961 | |
| 962 | |
| 963 | void LCodeGen::DoGap(LGap* gap) { |
| 964 | for (int i = LGap::FIRST_INNER_POSITION; |
| 965 | i <= LGap::LAST_INNER_POSITION; |
| 966 | i++) { |
| 967 | LGap::InnerPosition inner_pos = static_cast<LGap::InnerPosition>(i); |
| 968 | LParallelMove* move = gap->GetParallelMove(inner_pos); |
| 969 | if (move != NULL) DoParallelMove(move); |
| 970 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 971 | } |
| 972 | |
| 973 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 974 | void LCodeGen::DoInstructionGap(LInstructionGap* instr) { |
| 975 | DoGap(instr); |
| 976 | } |
| 977 | |
| 978 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 979 | void LCodeGen::DoParameter(LParameter* instr) { |
| 980 | // Nothing to do. |
| 981 | } |
| 982 | |
| 983 | |
| 984 | void LCodeGen::DoCallStub(LCallStub* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 985 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 986 | DCHECK(ToRegister(instr->result()).is(rax)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 987 | switch (instr->hydrogen()->major_key()) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 988 | case CodeStub::RegExpExec: { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 989 | RegExpExecStub stub(isolate()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 990 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 991 | break; |
| 992 | } |
| 993 | case CodeStub::SubString: { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 994 | SubStringStub stub(isolate()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 995 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 996 | break; |
| 997 | } |
| 998 | case CodeStub::StringCompare: { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 999 | StringCompareStub stub(isolate()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1000 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 1001 | break; |
| 1002 | } |
| 1003 | default: |
| 1004 | UNREACHABLE(); |
| 1005 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1006 | } |
| 1007 | |
| 1008 | |
| 1009 | void LCodeGen::DoUnknownOSRValue(LUnknownOSRValue* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1010 | GenerateOsrPrologue(); |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | void LCodeGen::DoModByPowerOf2I(LModByPowerOf2I* instr) { |
| 1015 | Register dividend = ToRegister(instr->dividend()); |
| 1016 | int32_t divisor = instr->divisor(); |
| 1017 | DCHECK(dividend.is(ToRegister(instr->result()))); |
| 1018 | |
| 1019 | // Theoretically, a variation of the branch-free code for integer division by |
| 1020 | // a power of 2 (calculating the remainder via an additional multiplication |
| 1021 | // (which gets simplified to an 'and') and subtraction) should be faster, and |
| 1022 | // this is exactly what GCC and clang emit. Nevertheless, benchmarks seem to |
| 1023 | // indicate that positive dividends are heavily favored, so the branching |
| 1024 | // version performs better. |
| 1025 | HMod* hmod = instr->hydrogen(); |
| 1026 | int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); |
| 1027 | Label dividend_is_not_negative, done; |
| 1028 | if (hmod->CheckFlag(HValue::kLeftCanBeNegative)) { |
| 1029 | __ testl(dividend, dividend); |
| 1030 | __ j(not_sign, ÷nd_is_not_negative, Label::kNear); |
| 1031 | // Note that this is correct even for kMinInt operands. |
| 1032 | __ negl(dividend); |
| 1033 | __ andl(dividend, Immediate(mask)); |
| 1034 | __ negl(dividend); |
| 1035 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1036 | DeoptimizeIf(zero, instr, "minus zero"); |
| 1037 | } |
| 1038 | __ jmp(&done, Label::kNear); |
| 1039 | } |
| 1040 | |
| 1041 | __ bind(÷nd_is_not_negative); |
| 1042 | __ andl(dividend, Immediate(mask)); |
| 1043 | __ bind(&done); |
| 1044 | } |
| 1045 | |
| 1046 | |
| 1047 | void LCodeGen::DoModByConstI(LModByConstI* instr) { |
| 1048 | Register dividend = ToRegister(instr->dividend()); |
| 1049 | int32_t divisor = instr->divisor(); |
| 1050 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 1051 | |
| 1052 | if (divisor == 0) { |
| 1053 | DeoptimizeIf(no_condition, instr, "division by zero"); |
| 1054 | return; |
| 1055 | } |
| 1056 | |
| 1057 | __ TruncatingDiv(dividend, Abs(divisor)); |
| 1058 | __ imull(rdx, rdx, Immediate(Abs(divisor))); |
| 1059 | __ movl(rax, dividend); |
| 1060 | __ subl(rax, rdx); |
| 1061 | |
| 1062 | // Check for negative zero. |
| 1063 | HMod* hmod = instr->hydrogen(); |
| 1064 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1065 | Label remainder_not_zero; |
| 1066 | __ j(not_zero, &remainder_not_zero, Label::kNear); |
| 1067 | __ cmpl(dividend, Immediate(0)); |
| 1068 | DeoptimizeIf(less, instr, "minus zero"); |
| 1069 | __ bind(&remainder_not_zero); |
| 1070 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1071 | } |
| 1072 | |
| 1073 | |
| 1074 | void LCodeGen::DoModI(LModI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1075 | HMod* hmod = instr->hydrogen(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1076 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1077 | Register left_reg = ToRegister(instr->left()); |
| 1078 | DCHECK(left_reg.is(rax)); |
| 1079 | Register right_reg = ToRegister(instr->right()); |
| 1080 | DCHECK(!right_reg.is(rax)); |
| 1081 | DCHECK(!right_reg.is(rdx)); |
| 1082 | Register result_reg = ToRegister(instr->result()); |
| 1083 | DCHECK(result_reg.is(rdx)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1084 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1085 | Label done; |
| 1086 | // Check for x % 0, idiv would signal a divide error. We have to |
| 1087 | // deopt in this case because we can't return a NaN. |
| 1088 | if (hmod->CheckFlag(HValue::kCanBeDivByZero)) { |
| 1089 | __ testl(right_reg, right_reg); |
| 1090 | DeoptimizeIf(zero, instr, "division by zero"); |
| 1091 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1092 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1093 | // Check for kMinInt % -1, idiv would signal a divide error. We |
| 1094 | // have to deopt if we care about -0, because we can't return that. |
| 1095 | if (hmod->CheckFlag(HValue::kCanOverflow)) { |
| 1096 | Label no_overflow_possible; |
| 1097 | __ cmpl(left_reg, Immediate(kMinInt)); |
| 1098 | __ j(not_zero, &no_overflow_possible, Label::kNear); |
| 1099 | __ cmpl(right_reg, Immediate(-1)); |
| 1100 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1101 | DeoptimizeIf(equal, instr, "minus zero"); |
Ben Murdoch | 7d3e7fc | 2011-07-12 16:37:06 +0100 | [diff] [blame] | 1102 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1103 | __ j(not_equal, &no_overflow_possible, Label::kNear); |
| 1104 | __ Set(result_reg, 0); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1105 | __ jmp(&done, Label::kNear); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1106 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1107 | __ bind(&no_overflow_possible); |
| 1108 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1109 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1110 | // Sign extend dividend in eax into edx:eax, since we are using only the low |
| 1111 | // 32 bits of the values. |
| 1112 | __ cdq(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1113 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1114 | // If we care about -0, test if the dividend is <0 and the result is 0. |
| 1115 | if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1116 | Label positive_left; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1117 | __ testl(left_reg, left_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1118 | __ j(not_sign, &positive_left, Label::kNear); |
| 1119 | __ idivl(right_reg); |
| 1120 | __ testl(result_reg, result_reg); |
| 1121 | DeoptimizeIf(zero, instr, "minus zero"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1122 | __ jmp(&done, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1123 | __ bind(&positive_left); |
| 1124 | } |
| 1125 | __ idivl(right_reg); |
| 1126 | __ bind(&done); |
| 1127 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1128 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1129 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1130 | void LCodeGen::DoFlooringDivByPowerOf2I(LFlooringDivByPowerOf2I* instr) { |
| 1131 | Register dividend = ToRegister(instr->dividend()); |
| 1132 | int32_t divisor = instr->divisor(); |
| 1133 | DCHECK(dividend.is(ToRegister(instr->result()))); |
| 1134 | |
| 1135 | // If the divisor is positive, things are easy: There can be no deopts and we |
| 1136 | // can simply do an arithmetic right shift. |
| 1137 | if (divisor == 1) return; |
| 1138 | int32_t shift = WhichPowerOf2Abs(divisor); |
| 1139 | if (divisor > 1) { |
| 1140 | __ sarl(dividend, Immediate(shift)); |
| 1141 | return; |
| 1142 | } |
| 1143 | |
| 1144 | // If the divisor is negative, we have to negate and handle edge cases. |
| 1145 | __ negl(dividend); |
| 1146 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1147 | DeoptimizeIf(zero, instr, "minus zero"); |
| 1148 | } |
| 1149 | |
| 1150 | // Dividing by -1 is basically negation, unless we overflow. |
| 1151 | if (divisor == -1) { |
| 1152 | if (instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { |
| 1153 | DeoptimizeIf(overflow, instr, "overflow"); |
| 1154 | } |
| 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | // If the negation could not overflow, simply shifting is OK. |
| 1159 | if (!instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) { |
| 1160 | __ sarl(dividend, Immediate(shift)); |
| 1161 | return; |
| 1162 | } |
| 1163 | |
| 1164 | Label not_kmin_int, done; |
| 1165 | __ j(no_overflow, ¬_kmin_int, Label::kNear); |
| 1166 | __ movl(dividend, Immediate(kMinInt / divisor)); |
| 1167 | __ jmp(&done, Label::kNear); |
| 1168 | __ bind(¬_kmin_int); |
| 1169 | __ sarl(dividend, Immediate(shift)); |
| 1170 | __ bind(&done); |
| 1171 | } |
| 1172 | |
| 1173 | |
| 1174 | void LCodeGen::DoFlooringDivByConstI(LFlooringDivByConstI* instr) { |
| 1175 | Register dividend = ToRegister(instr->dividend()); |
| 1176 | int32_t divisor = instr->divisor(); |
| 1177 | DCHECK(ToRegister(instr->result()).is(rdx)); |
| 1178 | |
| 1179 | if (divisor == 0) { |
| 1180 | DeoptimizeIf(no_condition, instr, "division by zero"); |
| 1181 | return; |
| 1182 | } |
| 1183 | |
| 1184 | // Check for (0 / -x) that will produce negative zero. |
| 1185 | HMathFloorOfDiv* hdiv = instr->hydrogen(); |
| 1186 | if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { |
| 1187 | __ testl(dividend, dividend); |
| 1188 | DeoptimizeIf(zero, instr, "minus zero"); |
| 1189 | } |
| 1190 | |
| 1191 | // Easy case: We need no dynamic check for the dividend and the flooring |
| 1192 | // division is the same as the truncating division. |
| 1193 | if ((divisor > 0 && !hdiv->CheckFlag(HValue::kLeftCanBeNegative)) || |
| 1194 | (divisor < 0 && !hdiv->CheckFlag(HValue::kLeftCanBePositive))) { |
| 1195 | __ TruncatingDiv(dividend, Abs(divisor)); |
| 1196 | if (divisor < 0) __ negl(rdx); |
| 1197 | return; |
| 1198 | } |
| 1199 | |
| 1200 | // In the general case we may need to adjust before and after the truncating |
| 1201 | // division to get a flooring division. |
| 1202 | Register temp = ToRegister(instr->temp3()); |
| 1203 | DCHECK(!temp.is(dividend) && !temp.is(rax) && !temp.is(rdx)); |
| 1204 | Label needs_adjustment, done; |
| 1205 | __ cmpl(dividend, Immediate(0)); |
| 1206 | __ j(divisor > 0 ? less : greater, &needs_adjustment, Label::kNear); |
| 1207 | __ TruncatingDiv(dividend, Abs(divisor)); |
| 1208 | if (divisor < 0) __ negl(rdx); |
| 1209 | __ jmp(&done, Label::kNear); |
| 1210 | __ bind(&needs_adjustment); |
| 1211 | __ leal(temp, Operand(dividend, divisor > 0 ? 1 : -1)); |
| 1212 | __ TruncatingDiv(temp, Abs(divisor)); |
| 1213 | if (divisor < 0) __ negl(rdx); |
| 1214 | __ decl(rdx); |
| 1215 | __ bind(&done); |
| 1216 | } |
| 1217 | |
| 1218 | |
| 1219 | // TODO(svenpanne) Refactor this to avoid code duplication with DoDivI. |
| 1220 | void LCodeGen::DoFlooringDivI(LFlooringDivI* instr) { |
| 1221 | HBinaryOperation* hdiv = instr->hydrogen(); |
| 1222 | Register dividend = ToRegister(instr->dividend()); |
| 1223 | Register divisor = ToRegister(instr->divisor()); |
| 1224 | Register remainder = ToRegister(instr->temp()); |
| 1225 | Register result = ToRegister(instr->result()); |
| 1226 | DCHECK(dividend.is(rax)); |
| 1227 | DCHECK(remainder.is(rdx)); |
| 1228 | DCHECK(result.is(rax)); |
| 1229 | DCHECK(!divisor.is(rax)); |
| 1230 | DCHECK(!divisor.is(rdx)); |
| 1231 | |
| 1232 | // Check for x / 0. |
| 1233 | if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { |
| 1234 | __ testl(divisor, divisor); |
| 1235 | DeoptimizeIf(zero, instr, "division by zero"); |
| 1236 | } |
| 1237 | |
| 1238 | // Check for (0 / -x) that will produce negative zero. |
| 1239 | if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1240 | Label dividend_not_zero; |
| 1241 | __ testl(dividend, dividend); |
| 1242 | __ j(not_zero, ÷nd_not_zero, Label::kNear); |
| 1243 | __ testl(divisor, divisor); |
| 1244 | DeoptimizeIf(sign, instr, "minus zero"); |
| 1245 | __ bind(÷nd_not_zero); |
| 1246 | } |
| 1247 | |
| 1248 | // Check for (kMinInt / -1). |
| 1249 | if (hdiv->CheckFlag(HValue::kCanOverflow)) { |
| 1250 | Label dividend_not_min_int; |
| 1251 | __ cmpl(dividend, Immediate(kMinInt)); |
| 1252 | __ j(not_zero, ÷nd_not_min_int, Label::kNear); |
| 1253 | __ cmpl(divisor, Immediate(-1)); |
| 1254 | DeoptimizeIf(zero, instr, "overflow"); |
| 1255 | __ bind(÷nd_not_min_int); |
| 1256 | } |
| 1257 | |
| 1258 | // Sign extend to rdx (= remainder). |
| 1259 | __ cdq(); |
| 1260 | __ idivl(divisor); |
| 1261 | |
| 1262 | Label done; |
| 1263 | __ testl(remainder, remainder); |
| 1264 | __ j(zero, &done, Label::kNear); |
| 1265 | __ xorl(remainder, divisor); |
| 1266 | __ sarl(remainder, Immediate(31)); |
| 1267 | __ addl(result, remainder); |
| 1268 | __ bind(&done); |
| 1269 | } |
| 1270 | |
| 1271 | |
| 1272 | void LCodeGen::DoDivByPowerOf2I(LDivByPowerOf2I* instr) { |
| 1273 | Register dividend = ToRegister(instr->dividend()); |
| 1274 | int32_t divisor = instr->divisor(); |
| 1275 | Register result = ToRegister(instr->result()); |
| 1276 | DCHECK(divisor == kMinInt || base::bits::IsPowerOfTwo32(Abs(divisor))); |
| 1277 | DCHECK(!result.is(dividend)); |
| 1278 | |
| 1279 | // Check for (0 / -x) that will produce negative zero. |
| 1280 | HDiv* hdiv = instr->hydrogen(); |
| 1281 | if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { |
| 1282 | __ testl(dividend, dividend); |
| 1283 | DeoptimizeIf(zero, instr, "minus zero"); |
| 1284 | } |
| 1285 | // Check for (kMinInt / -1). |
| 1286 | if (hdiv->CheckFlag(HValue::kCanOverflow) && divisor == -1) { |
| 1287 | __ cmpl(dividend, Immediate(kMinInt)); |
| 1288 | DeoptimizeIf(zero, instr, "overflow"); |
| 1289 | } |
| 1290 | // Deoptimize if remainder will not be 0. |
| 1291 | if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32) && |
| 1292 | divisor != 1 && divisor != -1) { |
| 1293 | int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1); |
| 1294 | __ testl(dividend, Immediate(mask)); |
| 1295 | DeoptimizeIf(not_zero, instr, "lost precision"); |
| 1296 | } |
| 1297 | __ Move(result, dividend); |
| 1298 | int32_t shift = WhichPowerOf2Abs(divisor); |
| 1299 | if (shift > 0) { |
| 1300 | // The arithmetic shift is always OK, the 'if' is an optimization only. |
| 1301 | if (shift > 1) __ sarl(result, Immediate(31)); |
| 1302 | __ shrl(result, Immediate(32 - shift)); |
| 1303 | __ addl(result, dividend); |
| 1304 | __ sarl(result, Immediate(shift)); |
| 1305 | } |
| 1306 | if (divisor < 0) __ negl(result); |
| 1307 | } |
| 1308 | |
| 1309 | |
| 1310 | void LCodeGen::DoDivByConstI(LDivByConstI* instr) { |
| 1311 | Register dividend = ToRegister(instr->dividend()); |
| 1312 | int32_t divisor = instr->divisor(); |
| 1313 | DCHECK(ToRegister(instr->result()).is(rdx)); |
| 1314 | |
| 1315 | if (divisor == 0) { |
| 1316 | DeoptimizeIf(no_condition, instr, "division by zero"); |
| 1317 | return; |
| 1318 | } |
| 1319 | |
| 1320 | // Check for (0 / -x) that will produce negative zero. |
| 1321 | HDiv* hdiv = instr->hydrogen(); |
| 1322 | if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) { |
| 1323 | __ testl(dividend, dividend); |
| 1324 | DeoptimizeIf(zero, instr, "minus zero"); |
| 1325 | } |
| 1326 | |
| 1327 | __ TruncatingDiv(dividend, Abs(divisor)); |
| 1328 | if (divisor < 0) __ negl(rdx); |
| 1329 | |
| 1330 | if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) { |
| 1331 | __ movl(rax, rdx); |
| 1332 | __ imull(rax, rax, Immediate(divisor)); |
| 1333 | __ subl(rax, dividend); |
| 1334 | DeoptimizeIf(not_equal, instr, "lost precision"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1335 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1336 | } |
| 1337 | |
| 1338 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1339 | // TODO(svenpanne) Refactor this to avoid code duplication with DoFlooringDivI. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1340 | void LCodeGen::DoDivI(LDivI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1341 | HBinaryOperation* hdiv = instr->hydrogen(); |
| 1342 | Register dividend = ToRegister(instr->dividend()); |
| 1343 | Register divisor = ToRegister(instr->divisor()); |
| 1344 | Register remainder = ToRegister(instr->temp()); |
| 1345 | DCHECK(dividend.is(rax)); |
| 1346 | DCHECK(remainder.is(rdx)); |
| 1347 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 1348 | DCHECK(!divisor.is(rax)); |
| 1349 | DCHECK(!divisor.is(rdx)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1350 | |
| 1351 | // Check for x / 0. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1352 | if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) { |
| 1353 | __ testl(divisor, divisor); |
| 1354 | DeoptimizeIf(zero, instr, "division by zero"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1355 | } |
| 1356 | |
| 1357 | // Check for (0 / -x) that will produce negative zero. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1358 | if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1359 | Label dividend_not_zero; |
| 1360 | __ testl(dividend, dividend); |
| 1361 | __ j(not_zero, ÷nd_not_zero, Label::kNear); |
| 1362 | __ testl(divisor, divisor); |
| 1363 | DeoptimizeIf(sign, instr, "minus zero"); |
| 1364 | __ bind(÷nd_not_zero); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1365 | } |
| 1366 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1367 | // Check for (kMinInt / -1). |
| 1368 | if (hdiv->CheckFlag(HValue::kCanOverflow)) { |
| 1369 | Label dividend_not_min_int; |
| 1370 | __ cmpl(dividend, Immediate(kMinInt)); |
| 1371 | __ j(not_zero, ÷nd_not_min_int, Label::kNear); |
| 1372 | __ cmpl(divisor, Immediate(-1)); |
| 1373 | DeoptimizeIf(zero, instr, "overflow"); |
| 1374 | __ bind(÷nd_not_min_int); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1375 | } |
| 1376 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1377 | // Sign extend to rdx (= remainder). |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1378 | __ cdq(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1379 | __ idivl(divisor); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1380 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1381 | if (!hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32)) { |
| 1382 | // Deoptimize if remainder is not 0. |
| 1383 | __ testl(remainder, remainder); |
| 1384 | DeoptimizeIf(not_zero, instr, "lost precision"); |
| 1385 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1386 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1387 | |
| 1388 | |
| 1389 | void LCodeGen::DoMulI(LMulI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1390 | Register left = ToRegister(instr->left()); |
| 1391 | LOperand* right = instr->right(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1392 | |
| 1393 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1394 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1395 | __ movp(kScratchRegister, left); |
| 1396 | } else { |
| 1397 | __ movl(kScratchRegister, left); |
| 1398 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1399 | } |
| 1400 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1401 | bool can_overflow = |
| 1402 | instr->hydrogen()->CheckFlag(HValue::kCanOverflow); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1403 | if (right->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1404 | int32_t right_value = ToInteger32(LConstantOperand::cast(right)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1405 | if (right_value == -1) { |
| 1406 | __ negl(left); |
| 1407 | } else if (right_value == 0) { |
| 1408 | __ xorl(left, left); |
| 1409 | } else if (right_value == 2) { |
| 1410 | __ addl(left, left); |
| 1411 | } else if (!can_overflow) { |
| 1412 | // If the multiplication is known to not overflow, we |
| 1413 | // can use operations that don't set the overflow flag |
| 1414 | // correctly. |
| 1415 | switch (right_value) { |
| 1416 | case 1: |
| 1417 | // Do nothing. |
| 1418 | break; |
| 1419 | case 3: |
| 1420 | __ leal(left, Operand(left, left, times_2, 0)); |
| 1421 | break; |
| 1422 | case 4: |
| 1423 | __ shll(left, Immediate(2)); |
| 1424 | break; |
| 1425 | case 5: |
| 1426 | __ leal(left, Operand(left, left, times_4, 0)); |
| 1427 | break; |
| 1428 | case 8: |
| 1429 | __ shll(left, Immediate(3)); |
| 1430 | break; |
| 1431 | case 9: |
| 1432 | __ leal(left, Operand(left, left, times_8, 0)); |
| 1433 | break; |
| 1434 | case 16: |
| 1435 | __ shll(left, Immediate(4)); |
| 1436 | break; |
| 1437 | default: |
| 1438 | __ imull(left, left, Immediate(right_value)); |
| 1439 | break; |
| 1440 | } |
| 1441 | } else { |
| 1442 | __ imull(left, left, Immediate(right_value)); |
| 1443 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1444 | } else if (right->IsStackSlot()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1445 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1446 | __ SmiToInteger64(left, left); |
| 1447 | __ imulp(left, ToOperand(right)); |
| 1448 | } else { |
| 1449 | __ imull(left, ToOperand(right)); |
| 1450 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1451 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1452 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1453 | __ SmiToInteger64(left, left); |
| 1454 | __ imulp(left, ToRegister(right)); |
| 1455 | } else { |
| 1456 | __ imull(left, ToRegister(right)); |
| 1457 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1458 | } |
| 1459 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1460 | if (can_overflow) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1461 | DeoptimizeIf(overflow, instr, "overflow"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1462 | } |
| 1463 | |
| 1464 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 1465 | // Bail out if the result is supposed to be negative zero. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1466 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1467 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1468 | __ testp(left, left); |
| 1469 | } else { |
| 1470 | __ testl(left, left); |
| 1471 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1472 | __ j(not_zero, &done, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1473 | if (right->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1474 | // Constant can't be represented as 32-bit Smi due to immediate size |
| 1475 | // limit. |
| 1476 | DCHECK(SmiValuesAre32Bits() |
| 1477 | ? !instr->hydrogen_value()->representation().IsSmi() |
| 1478 | : SmiValuesAre31Bits()); |
| 1479 | if (ToInteger32(LConstantOperand::cast(right)) < 0) { |
| 1480 | DeoptimizeIf(no_condition, instr, "minus zero"); |
| 1481 | } else if (ToInteger32(LConstantOperand::cast(right)) == 0) { |
| 1482 | __ cmpl(kScratchRegister, Immediate(0)); |
| 1483 | DeoptimizeIf(less, instr, "minus zero"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1484 | } |
| 1485 | } else if (right->IsStackSlot()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1486 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1487 | __ orp(kScratchRegister, ToOperand(right)); |
| 1488 | } else { |
| 1489 | __ orl(kScratchRegister, ToOperand(right)); |
| 1490 | } |
| 1491 | DeoptimizeIf(sign, instr, "minus zero"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1492 | } else { |
| 1493 | // Test the non-zero operand for negative sign. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1494 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1495 | __ orp(kScratchRegister, ToRegister(right)); |
| 1496 | } else { |
| 1497 | __ orl(kScratchRegister, ToRegister(right)); |
| 1498 | } |
| 1499 | DeoptimizeIf(sign, instr, "minus zero"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1500 | } |
| 1501 | __ bind(&done); |
| 1502 | } |
| 1503 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1504 | |
| 1505 | |
| 1506 | void LCodeGen::DoBitI(LBitI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1507 | LOperand* left = instr->left(); |
| 1508 | LOperand* right = instr->right(); |
| 1509 | DCHECK(left->Equals(instr->result())); |
| 1510 | DCHECK(left->IsRegister()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1511 | |
| 1512 | if (right->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1513 | int32_t right_operand = |
| 1514 | ToRepresentation(LConstantOperand::cast(right), |
| 1515 | instr->hydrogen()->right()->representation()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1516 | switch (instr->op()) { |
| 1517 | case Token::BIT_AND: |
| 1518 | __ andl(ToRegister(left), Immediate(right_operand)); |
| 1519 | break; |
| 1520 | case Token::BIT_OR: |
| 1521 | __ orl(ToRegister(left), Immediate(right_operand)); |
| 1522 | break; |
| 1523 | case Token::BIT_XOR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1524 | if (right_operand == int32_t(~0)) { |
| 1525 | __ notl(ToRegister(left)); |
| 1526 | } else { |
| 1527 | __ xorl(ToRegister(left), Immediate(right_operand)); |
| 1528 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1529 | break; |
| 1530 | default: |
| 1531 | UNREACHABLE(); |
| 1532 | break; |
| 1533 | } |
| 1534 | } else if (right->IsStackSlot()) { |
| 1535 | switch (instr->op()) { |
| 1536 | case Token::BIT_AND: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1537 | if (instr->IsInteger32()) { |
| 1538 | __ andl(ToRegister(left), ToOperand(right)); |
| 1539 | } else { |
| 1540 | __ andp(ToRegister(left), ToOperand(right)); |
| 1541 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1542 | break; |
| 1543 | case Token::BIT_OR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1544 | if (instr->IsInteger32()) { |
| 1545 | __ orl(ToRegister(left), ToOperand(right)); |
| 1546 | } else { |
| 1547 | __ orp(ToRegister(left), ToOperand(right)); |
| 1548 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1549 | break; |
| 1550 | case Token::BIT_XOR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1551 | if (instr->IsInteger32()) { |
| 1552 | __ xorl(ToRegister(left), ToOperand(right)); |
| 1553 | } else { |
| 1554 | __ xorp(ToRegister(left), ToOperand(right)); |
| 1555 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1556 | break; |
| 1557 | default: |
| 1558 | UNREACHABLE(); |
| 1559 | break; |
| 1560 | } |
| 1561 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1562 | DCHECK(right->IsRegister()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1563 | switch (instr->op()) { |
| 1564 | case Token::BIT_AND: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1565 | if (instr->IsInteger32()) { |
| 1566 | __ andl(ToRegister(left), ToRegister(right)); |
| 1567 | } else { |
| 1568 | __ andp(ToRegister(left), ToRegister(right)); |
| 1569 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1570 | break; |
| 1571 | case Token::BIT_OR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1572 | if (instr->IsInteger32()) { |
| 1573 | __ orl(ToRegister(left), ToRegister(right)); |
| 1574 | } else { |
| 1575 | __ orp(ToRegister(left), ToRegister(right)); |
| 1576 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1577 | break; |
| 1578 | case Token::BIT_XOR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1579 | if (instr->IsInteger32()) { |
| 1580 | __ xorl(ToRegister(left), ToRegister(right)); |
| 1581 | } else { |
| 1582 | __ xorp(ToRegister(left), ToRegister(right)); |
| 1583 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1584 | break; |
| 1585 | default: |
| 1586 | UNREACHABLE(); |
| 1587 | break; |
| 1588 | } |
| 1589 | } |
| 1590 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1591 | |
| 1592 | |
| 1593 | void LCodeGen::DoShiftI(LShiftI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1594 | LOperand* left = instr->left(); |
| 1595 | LOperand* right = instr->right(); |
| 1596 | DCHECK(left->Equals(instr->result())); |
| 1597 | DCHECK(left->IsRegister()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1598 | if (right->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1599 | DCHECK(ToRegister(right).is(rcx)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1600 | |
| 1601 | switch (instr->op()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1602 | case Token::ROR: |
| 1603 | __ rorl_cl(ToRegister(left)); |
| 1604 | break; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1605 | case Token::SAR: |
| 1606 | __ sarl_cl(ToRegister(left)); |
| 1607 | break; |
| 1608 | case Token::SHR: |
| 1609 | __ shrl_cl(ToRegister(left)); |
| 1610 | if (instr->can_deopt()) { |
| 1611 | __ testl(ToRegister(left), ToRegister(left)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1612 | DeoptimizeIf(negative, instr, "negative value"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1613 | } |
| 1614 | break; |
| 1615 | case Token::SHL: |
| 1616 | __ shll_cl(ToRegister(left)); |
| 1617 | break; |
| 1618 | default: |
| 1619 | UNREACHABLE(); |
| 1620 | break; |
| 1621 | } |
| 1622 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1623 | int32_t value = ToInteger32(LConstantOperand::cast(right)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1624 | uint8_t shift_count = static_cast<uint8_t>(value & 0x1F); |
| 1625 | switch (instr->op()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1626 | case Token::ROR: |
| 1627 | if (shift_count != 0) { |
| 1628 | __ rorl(ToRegister(left), Immediate(shift_count)); |
| 1629 | } |
| 1630 | break; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1631 | case Token::SAR: |
| 1632 | if (shift_count != 0) { |
| 1633 | __ sarl(ToRegister(left), Immediate(shift_count)); |
| 1634 | } |
| 1635 | break; |
| 1636 | case Token::SHR: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1637 | if (shift_count != 0) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1638 | __ shrl(ToRegister(left), Immediate(shift_count)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1639 | } else if (instr->can_deopt()) { |
| 1640 | __ testl(ToRegister(left), ToRegister(left)); |
| 1641 | DeoptimizeIf(negative, instr, "negative value"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1642 | } |
| 1643 | break; |
| 1644 | case Token::SHL: |
| 1645 | if (shift_count != 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1646 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1647 | if (SmiValuesAre32Bits()) { |
| 1648 | __ shlp(ToRegister(left), Immediate(shift_count)); |
| 1649 | } else { |
| 1650 | DCHECK(SmiValuesAre31Bits()); |
| 1651 | if (instr->can_deopt()) { |
| 1652 | if (shift_count != 1) { |
| 1653 | __ shll(ToRegister(left), Immediate(shift_count - 1)); |
| 1654 | } |
| 1655 | __ Integer32ToSmi(ToRegister(left), ToRegister(left)); |
| 1656 | DeoptimizeIf(overflow, instr, "overflow"); |
| 1657 | } else { |
| 1658 | __ shll(ToRegister(left), Immediate(shift_count)); |
| 1659 | } |
| 1660 | } |
| 1661 | } else { |
| 1662 | __ shll(ToRegister(left), Immediate(shift_count)); |
| 1663 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1664 | } |
| 1665 | break; |
| 1666 | default: |
| 1667 | UNREACHABLE(); |
| 1668 | break; |
| 1669 | } |
| 1670 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1671 | } |
| 1672 | |
| 1673 | |
| 1674 | void LCodeGen::DoSubI(LSubI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1675 | LOperand* left = instr->left(); |
| 1676 | LOperand* right = instr->right(); |
| 1677 | DCHECK(left->Equals(instr->result())); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1678 | |
| 1679 | if (right->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1680 | int32_t right_operand = |
| 1681 | ToRepresentation(LConstantOperand::cast(right), |
| 1682 | instr->hydrogen()->right()->representation()); |
| 1683 | __ subl(ToRegister(left), Immediate(right_operand)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1684 | } else if (right->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1685 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1686 | __ subp(ToRegister(left), ToRegister(right)); |
| 1687 | } else { |
| 1688 | __ subl(ToRegister(left), ToRegister(right)); |
| 1689 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1690 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1691 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1692 | __ subp(ToRegister(left), ToOperand(right)); |
| 1693 | } else { |
| 1694 | __ subl(ToRegister(left), ToOperand(right)); |
| 1695 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1696 | } |
| 1697 | |
| 1698 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1699 | DeoptimizeIf(overflow, instr, "overflow"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1700 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1701 | } |
| 1702 | |
| 1703 | |
| 1704 | void LCodeGen::DoConstantI(LConstantI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1705 | Register dst = ToRegister(instr->result()); |
| 1706 | if (instr->value() == 0) { |
| 1707 | __ xorl(dst, dst); |
| 1708 | } else { |
| 1709 | __ movl(dst, Immediate(instr->value())); |
| 1710 | } |
| 1711 | } |
| 1712 | |
| 1713 | |
| 1714 | void LCodeGen::DoConstantS(LConstantS* instr) { |
| 1715 | __ Move(ToRegister(instr->result()), instr->value()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1716 | } |
| 1717 | |
| 1718 | |
| 1719 | void LCodeGen::DoConstantD(LConstantD* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1720 | DCHECK(instr->result()->IsDoubleRegister()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1721 | XMMRegister res = ToDoubleRegister(instr->result()); |
| 1722 | double v = instr->value(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1723 | uint64_t int_val = bit_cast<uint64_t, double>(v); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1724 | // Use xor to produce +0.0 in a fast and compact way, but avoid to |
| 1725 | // do so if the constant is -0.0. |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1726 | if (int_val == 0) { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1727 | __ xorps(res, res); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1728 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1729 | Register tmp = ToRegister(instr->temp()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 1730 | __ Set(tmp, int_val); |
| 1731 | __ movq(res, tmp); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1732 | } |
| 1733 | } |
| 1734 | |
| 1735 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1736 | void LCodeGen::DoConstantE(LConstantE* instr) { |
| 1737 | __ LoadAddress(ToRegister(instr->result()), instr->value()); |
| 1738 | } |
| 1739 | |
| 1740 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1741 | void LCodeGen::DoConstantT(LConstantT* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1742 | Handle<Object> object = instr->value(isolate()); |
| 1743 | AllowDeferredHandleDereference smi_check; |
| 1744 | __ Move(ToRegister(instr->result()), object); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1745 | } |
| 1746 | |
| 1747 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1748 | void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1749 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1750 | Register map = ToRegister(instr->value()); |
| 1751 | __ EnumLength(result, map); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1752 | } |
| 1753 | |
| 1754 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1755 | void LCodeGen::DoDateField(LDateField* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1756 | Register object = ToRegister(instr->date()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1757 | Register result = ToRegister(instr->result()); |
| 1758 | Smi* index = instr->index(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1759 | Label runtime, done, not_date_object; |
| 1760 | DCHECK(object.is(result)); |
| 1761 | DCHECK(object.is(rax)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1762 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1763 | Condition cc = masm()->CheckSmi(object); |
| 1764 | DeoptimizeIf(cc, instr, "Smi"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1765 | __ CmpObjectType(object, JS_DATE_TYPE, kScratchRegister); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1766 | DeoptimizeIf(not_equal, instr, "not a date object"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1767 | |
| 1768 | if (index->value() == 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1769 | __ movp(result, FieldOperand(object, JSDate::kValueOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1770 | } else { |
| 1771 | if (index->value() < JSDate::kFirstUncachedField) { |
| 1772 | ExternalReference stamp = ExternalReference::date_cache_stamp(isolate()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1773 | Operand stamp_operand = __ ExternalOperand(stamp); |
| 1774 | __ movp(kScratchRegister, stamp_operand); |
| 1775 | __ cmpp(kScratchRegister, FieldOperand(object, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1776 | JSDate::kCacheStampOffset)); |
| 1777 | __ j(not_equal, &runtime, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1778 | __ movp(result, FieldOperand(object, JSDate::kValueOffset + |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1779 | kPointerSize * index->value())); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1780 | __ jmp(&done, Label::kNear); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1781 | } |
| 1782 | __ bind(&runtime); |
| 1783 | __ PrepareCallCFunction(2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1784 | __ movp(arg_reg_1, object); |
| 1785 | __ Move(arg_reg_2, index, Assembler::RelocInfoNone()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1786 | __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1787 | __ bind(&done); |
| 1788 | } |
| 1789 | } |
| 1790 | |
| 1791 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1792 | Operand LCodeGen::BuildSeqStringOperand(Register string, |
| 1793 | LOperand* index, |
| 1794 | String::Encoding encoding) { |
| 1795 | if (index->IsConstantOperand()) { |
| 1796 | int offset = ToInteger32(LConstantOperand::cast(index)); |
| 1797 | if (encoding == String::TWO_BYTE_ENCODING) { |
| 1798 | offset *= kUC16Size; |
| 1799 | } |
| 1800 | STATIC_ASSERT(kCharSize == 1); |
| 1801 | return FieldOperand(string, SeqString::kHeaderSize + offset); |
| 1802 | } |
| 1803 | return FieldOperand( |
| 1804 | string, ToRegister(index), |
| 1805 | encoding == String::ONE_BYTE_ENCODING ? times_1 : times_2, |
| 1806 | SeqString::kHeaderSize); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1807 | } |
| 1808 | |
| 1809 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1810 | void LCodeGen::DoSeqStringGetChar(LSeqStringGetChar* instr) { |
| 1811 | String::Encoding encoding = instr->hydrogen()->encoding(); |
| 1812 | Register result = ToRegister(instr->result()); |
| 1813 | Register string = ToRegister(instr->string()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1814 | |
| 1815 | if (FLAG_debug_code) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1816 | __ Push(string); |
| 1817 | __ movp(string, FieldOperand(string, HeapObject::kMapOffset)); |
| 1818 | __ movzxbp(string, FieldOperand(string, Map::kInstanceTypeOffset)); |
| 1819 | |
| 1820 | __ andb(string, Immediate(kStringRepresentationMask | kStringEncodingMask)); |
| 1821 | static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; |
| 1822 | static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; |
| 1823 | __ cmpp(string, Immediate(encoding == String::ONE_BYTE_ENCODING |
| 1824 | ? one_byte_seq_type : two_byte_seq_type)); |
| 1825 | __ Check(equal, kUnexpectedStringType); |
| 1826 | __ Pop(string); |
| 1827 | } |
| 1828 | |
| 1829 | Operand operand = BuildSeqStringOperand(string, instr->index(), encoding); |
| 1830 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 1831 | __ movzxbl(result, operand); |
| 1832 | } else { |
| 1833 | __ movzxwl(result, operand); |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | |
| 1838 | void LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) { |
| 1839 | String::Encoding encoding = instr->hydrogen()->encoding(); |
| 1840 | Register string = ToRegister(instr->string()); |
| 1841 | |
| 1842 | if (FLAG_debug_code) { |
| 1843 | Register value = ToRegister(instr->value()); |
| 1844 | Register index = ToRegister(instr->index()); |
| 1845 | static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag; |
| 1846 | static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag; |
| 1847 | int encoding_mask = |
| 1848 | instr->hydrogen()->encoding() == String::ONE_BYTE_ENCODING |
| 1849 | ? one_byte_seq_type : two_byte_seq_type; |
| 1850 | __ EmitSeqStringSetCharCheck(string, index, value, encoding_mask); |
| 1851 | } |
| 1852 | |
| 1853 | Operand operand = BuildSeqStringOperand(string, instr->index(), encoding); |
| 1854 | if (instr->value()->IsConstantOperand()) { |
| 1855 | int value = ToInteger32(LConstantOperand::cast(instr->value())); |
| 1856 | DCHECK_LE(0, value); |
| 1857 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 1858 | DCHECK_LE(value, String::kMaxOneByteCharCode); |
| 1859 | __ movb(operand, Immediate(value)); |
| 1860 | } else { |
| 1861 | DCHECK_LE(value, String::kMaxUtf16CodeUnit); |
| 1862 | __ movw(operand, Immediate(value)); |
| 1863 | } |
| 1864 | } else { |
| 1865 | Register value = ToRegister(instr->value()); |
| 1866 | if (encoding == String::ONE_BYTE_ENCODING) { |
| 1867 | __ movb(operand, value); |
| 1868 | } else { |
| 1869 | __ movw(operand, value); |
| 1870 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1871 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1872 | } |
| 1873 | |
| 1874 | |
| 1875 | void LCodeGen::DoAddI(LAddI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1876 | LOperand* left = instr->left(); |
| 1877 | LOperand* right = instr->right(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1878 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1879 | Representation target_rep = instr->hydrogen()->representation(); |
| 1880 | bool is_p = target_rep.IsSmi() || target_rep.IsExternal(); |
| 1881 | |
| 1882 | if (LAddI::UseLea(instr->hydrogen()) && !left->Equals(instr->result())) { |
| 1883 | if (right->IsConstantOperand()) { |
| 1884 | // No support for smi-immediates for 32-bit SMI. |
| 1885 | DCHECK(SmiValuesAre32Bits() ? !target_rep.IsSmi() : SmiValuesAre31Bits()); |
| 1886 | int32_t offset = |
| 1887 | ToRepresentation(LConstantOperand::cast(right), |
| 1888 | instr->hydrogen()->right()->representation()); |
| 1889 | if (is_p) { |
| 1890 | __ leap(ToRegister(instr->result()), |
| 1891 | MemOperand(ToRegister(left), offset)); |
| 1892 | } else { |
| 1893 | __ leal(ToRegister(instr->result()), |
| 1894 | MemOperand(ToRegister(left), offset)); |
| 1895 | } |
| 1896 | } else { |
| 1897 | Operand address(ToRegister(left), ToRegister(right), times_1, 0); |
| 1898 | if (is_p) { |
| 1899 | __ leap(ToRegister(instr->result()), address); |
| 1900 | } else { |
| 1901 | __ leal(ToRegister(instr->result()), address); |
| 1902 | } |
| 1903 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1904 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1905 | if (right->IsConstantOperand()) { |
| 1906 | // No support for smi-immediates for 32-bit SMI. |
| 1907 | DCHECK(SmiValuesAre32Bits() ? !target_rep.IsSmi() : SmiValuesAre31Bits()); |
| 1908 | int32_t right_operand = |
| 1909 | ToRepresentation(LConstantOperand::cast(right), |
| 1910 | instr->hydrogen()->right()->representation()); |
| 1911 | if (is_p) { |
| 1912 | __ addp(ToRegister(left), Immediate(right_operand)); |
| 1913 | } else { |
| 1914 | __ addl(ToRegister(left), Immediate(right_operand)); |
| 1915 | } |
| 1916 | } else if (right->IsRegister()) { |
| 1917 | if (is_p) { |
| 1918 | __ addp(ToRegister(left), ToRegister(right)); |
| 1919 | } else { |
| 1920 | __ addl(ToRegister(left), ToRegister(right)); |
| 1921 | } |
| 1922 | } else { |
| 1923 | if (is_p) { |
| 1924 | __ addp(ToRegister(left), ToOperand(right)); |
| 1925 | } else { |
| 1926 | __ addl(ToRegister(left), ToOperand(right)); |
| 1927 | } |
| 1928 | } |
| 1929 | if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) { |
| 1930 | DeoptimizeIf(overflow, instr, "overflow"); |
| 1931 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1932 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1933 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1934 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1935 | |
| 1936 | void LCodeGen::DoMathMinMax(LMathMinMax* instr) { |
| 1937 | LOperand* left = instr->left(); |
| 1938 | LOperand* right = instr->right(); |
| 1939 | DCHECK(left->Equals(instr->result())); |
| 1940 | HMathMinMax::Operation operation = instr->hydrogen()->operation(); |
| 1941 | if (instr->hydrogen()->representation().IsSmiOrInteger32()) { |
| 1942 | Label return_left; |
| 1943 | Condition condition = (operation == HMathMinMax::kMathMin) |
| 1944 | ? less_equal |
| 1945 | : greater_equal; |
| 1946 | Register left_reg = ToRegister(left); |
| 1947 | if (right->IsConstantOperand()) { |
| 1948 | Immediate right_imm = Immediate( |
| 1949 | ToRepresentation(LConstantOperand::cast(right), |
| 1950 | instr->hydrogen()->right()->representation())); |
| 1951 | DCHECK(SmiValuesAre32Bits() |
| 1952 | ? !instr->hydrogen()->representation().IsSmi() |
| 1953 | : SmiValuesAre31Bits()); |
| 1954 | __ cmpl(left_reg, right_imm); |
| 1955 | __ j(condition, &return_left, Label::kNear); |
| 1956 | __ movp(left_reg, right_imm); |
| 1957 | } else if (right->IsRegister()) { |
| 1958 | Register right_reg = ToRegister(right); |
| 1959 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1960 | __ cmpp(left_reg, right_reg); |
| 1961 | } else { |
| 1962 | __ cmpl(left_reg, right_reg); |
| 1963 | } |
| 1964 | __ j(condition, &return_left, Label::kNear); |
| 1965 | __ movp(left_reg, right_reg); |
| 1966 | } else { |
| 1967 | Operand right_op = ToOperand(right); |
| 1968 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 1969 | __ cmpp(left_reg, right_op); |
| 1970 | } else { |
| 1971 | __ cmpl(left_reg, right_op); |
| 1972 | } |
| 1973 | __ j(condition, &return_left, Label::kNear); |
| 1974 | __ movp(left_reg, right_op); |
| 1975 | } |
| 1976 | __ bind(&return_left); |
| 1977 | } else { |
| 1978 | DCHECK(instr->hydrogen()->representation().IsDouble()); |
| 1979 | Label check_nan_left, check_zero, return_left, return_right; |
| 1980 | Condition condition = (operation == HMathMinMax::kMathMin) ? below : above; |
| 1981 | XMMRegister left_reg = ToDoubleRegister(left); |
| 1982 | XMMRegister right_reg = ToDoubleRegister(right); |
| 1983 | __ ucomisd(left_reg, right_reg); |
| 1984 | __ j(parity_even, &check_nan_left, Label::kNear); // At least one NaN. |
| 1985 | __ j(equal, &check_zero, Label::kNear); // left == right. |
| 1986 | __ j(condition, &return_left, Label::kNear); |
| 1987 | __ jmp(&return_right, Label::kNear); |
| 1988 | |
| 1989 | __ bind(&check_zero); |
| 1990 | XMMRegister xmm_scratch = double_scratch0(); |
| 1991 | __ xorps(xmm_scratch, xmm_scratch); |
| 1992 | __ ucomisd(left_reg, xmm_scratch); |
| 1993 | __ j(not_equal, &return_left, Label::kNear); // left == right != 0. |
| 1994 | // At this point, both left and right are either 0 or -0. |
| 1995 | if (operation == HMathMinMax::kMathMin) { |
| 1996 | __ orps(left_reg, right_reg); |
| 1997 | } else { |
| 1998 | // Since we operate on +0 and/or -0, addsd and andsd have the same effect. |
| 1999 | __ addsd(left_reg, right_reg); |
| 2000 | } |
| 2001 | __ jmp(&return_left, Label::kNear); |
| 2002 | |
| 2003 | __ bind(&check_nan_left); |
| 2004 | __ ucomisd(left_reg, left_reg); // NaN check. |
| 2005 | __ j(parity_even, &return_left, Label::kNear); |
| 2006 | __ bind(&return_right); |
| 2007 | __ movaps(left_reg, right_reg); |
| 2008 | |
| 2009 | __ bind(&return_left); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2010 | } |
| 2011 | } |
| 2012 | |
| 2013 | |
| 2014 | void LCodeGen::DoArithmeticD(LArithmeticD* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2015 | XMMRegister left = ToDoubleRegister(instr->left()); |
| 2016 | XMMRegister right = ToDoubleRegister(instr->right()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2017 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 2018 | // All operations except MOD are computed in-place. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2019 | DCHECK(instr->op() == Token::MOD || left.is(result)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2020 | switch (instr->op()) { |
| 2021 | case Token::ADD: |
| 2022 | __ addsd(left, right); |
| 2023 | break; |
| 2024 | case Token::SUB: |
| 2025 | __ subsd(left, right); |
| 2026 | break; |
| 2027 | case Token::MUL: |
| 2028 | __ mulsd(left, right); |
| 2029 | break; |
| 2030 | case Token::DIV: |
| 2031 | __ divsd(left, right); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2032 | // Don't delete this mov. It may improve performance on some CPUs, |
| 2033 | // when there is a mulsd depending on the result |
| 2034 | __ movaps(left, left); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2035 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2036 | case Token::MOD: { |
| 2037 | XMMRegister xmm_scratch = double_scratch0(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2038 | __ PrepareCallCFunction(2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2039 | __ movaps(xmm_scratch, left); |
| 2040 | DCHECK(right.is(xmm1)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2041 | __ CallCFunction( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2042 | ExternalReference::mod_two_doubles_operation(isolate()), 2); |
| 2043 | __ movaps(result, xmm_scratch); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2044 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2045 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2046 | default: |
| 2047 | UNREACHABLE(); |
| 2048 | break; |
| 2049 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2050 | } |
| 2051 | |
| 2052 | |
| 2053 | void LCodeGen::DoArithmeticT(LArithmeticT* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2054 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 2055 | DCHECK(ToRegister(instr->left()).is(rdx)); |
| 2056 | DCHECK(ToRegister(instr->right()).is(rax)); |
| 2057 | DCHECK(ToRegister(instr->result()).is(rax)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2058 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2059 | Handle<Code> code = |
| 2060 | CodeFactory::BinaryOpIC(isolate(), instr->op(), NO_OVERWRITE).code(); |
| 2061 | CallCode(code, RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2062 | } |
| 2063 | |
| 2064 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2065 | template<class InstrType> |
| 2066 | void LCodeGen::EmitBranch(InstrType instr, Condition cc) { |
| 2067 | int left_block = instr->TrueDestination(chunk_); |
| 2068 | int right_block = instr->FalseDestination(chunk_); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2069 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2070 | int next_block = GetNextEmittedBlock(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2071 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2072 | if (right_block == left_block || cc == no_condition) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2073 | EmitGoto(left_block); |
| 2074 | } else if (left_block == next_block) { |
| 2075 | __ j(NegateCondition(cc), chunk_->GetAssemblyLabel(right_block)); |
| 2076 | } else if (right_block == next_block) { |
| 2077 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 2078 | } else { |
| 2079 | __ j(cc, chunk_->GetAssemblyLabel(left_block)); |
| 2080 | if (cc != always) { |
| 2081 | __ jmp(chunk_->GetAssemblyLabel(right_block)); |
| 2082 | } |
| 2083 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2084 | } |
| 2085 | |
| 2086 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2087 | template<class InstrType> |
| 2088 | void LCodeGen::EmitFalseBranch(InstrType instr, Condition cc) { |
| 2089 | int false_block = instr->FalseDestination(chunk_); |
| 2090 | __ j(cc, chunk_->GetAssemblyLabel(false_block)); |
| 2091 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2092 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2093 | |
| 2094 | void LCodeGen::DoDebugBreak(LDebugBreak* instr) { |
| 2095 | __ int3(); |
| 2096 | } |
| 2097 | |
| 2098 | |
| 2099 | void LCodeGen::DoBranch(LBranch* instr) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2100 | Representation r = instr->hydrogen()->value()->representation(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2101 | if (r.IsInteger32()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2102 | DCHECK(!info()->IsStub()); |
| 2103 | Register reg = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2104 | __ testl(reg, reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2105 | EmitBranch(instr, not_zero); |
| 2106 | } else if (r.IsSmi()) { |
| 2107 | DCHECK(!info()->IsStub()); |
| 2108 | Register reg = ToRegister(instr->value()); |
| 2109 | __ testp(reg, reg); |
| 2110 | EmitBranch(instr, not_zero); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2111 | } else if (r.IsDouble()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2112 | DCHECK(!info()->IsStub()); |
| 2113 | XMMRegister reg = ToDoubleRegister(instr->value()); |
| 2114 | XMMRegister xmm_scratch = double_scratch0(); |
| 2115 | __ xorps(xmm_scratch, xmm_scratch); |
| 2116 | __ ucomisd(reg, xmm_scratch); |
| 2117 | EmitBranch(instr, not_equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2118 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2119 | DCHECK(r.IsTagged()); |
| 2120 | Register reg = ToRegister(instr->value()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2121 | HType type = instr->hydrogen()->value()->type(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2122 | if (type.IsBoolean()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2123 | DCHECK(!info()->IsStub()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2124 | __ CompareRoot(reg, Heap::kTrueValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2125 | EmitBranch(instr, equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2126 | } else if (type.IsSmi()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2127 | DCHECK(!info()->IsStub()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2128 | __ SmiCompare(reg, Smi::FromInt(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2129 | EmitBranch(instr, not_equal); |
| 2130 | } else if (type.IsJSArray()) { |
| 2131 | DCHECK(!info()->IsStub()); |
| 2132 | EmitBranch(instr, no_condition); |
| 2133 | } else if (type.IsHeapNumber()) { |
| 2134 | DCHECK(!info()->IsStub()); |
| 2135 | XMMRegister xmm_scratch = double_scratch0(); |
| 2136 | __ xorps(xmm_scratch, xmm_scratch); |
| 2137 | __ ucomisd(xmm_scratch, FieldOperand(reg, HeapNumber::kValueOffset)); |
| 2138 | EmitBranch(instr, not_equal); |
| 2139 | } else if (type.IsString()) { |
| 2140 | DCHECK(!info()->IsStub()); |
| 2141 | __ cmpp(FieldOperand(reg, String::kLengthOffset), Immediate(0)); |
| 2142 | EmitBranch(instr, not_equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2143 | } else { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2144 | ToBooleanStub::Types expected = instr->hydrogen()->expected_input_types(); |
| 2145 | // Avoid deopts in the case where we've never executed this path before. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2146 | if (expected.IsEmpty()) expected = ToBooleanStub::Types::Generic(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2147 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2148 | if (expected.Contains(ToBooleanStub::UNDEFINED)) { |
| 2149 | // undefined -> false. |
| 2150 | __ CompareRoot(reg, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2151 | __ j(equal, instr->FalseLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2152 | } |
| 2153 | if (expected.Contains(ToBooleanStub::BOOLEAN)) { |
| 2154 | // true -> true. |
| 2155 | __ CompareRoot(reg, Heap::kTrueValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2156 | __ j(equal, instr->TrueLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2157 | // false -> false. |
| 2158 | __ CompareRoot(reg, Heap::kFalseValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2159 | __ j(equal, instr->FalseLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2160 | } |
| 2161 | if (expected.Contains(ToBooleanStub::NULL_TYPE)) { |
| 2162 | // 'null' -> false. |
| 2163 | __ CompareRoot(reg, Heap::kNullValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2164 | __ j(equal, instr->FalseLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2165 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2166 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2167 | if (expected.Contains(ToBooleanStub::SMI)) { |
| 2168 | // Smis: 0 -> false, all other -> true. |
| 2169 | __ Cmp(reg, Smi::FromInt(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2170 | __ j(equal, instr->FalseLabel(chunk_)); |
| 2171 | __ JumpIfSmi(reg, instr->TrueLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2172 | } else if (expected.NeedsMap()) { |
| 2173 | // If we need a map later and have a Smi -> deopt. |
| 2174 | __ testb(reg, Immediate(kSmiTagMask)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2175 | DeoptimizeIf(zero, instr, "Smi"); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2176 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2177 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2178 | const Register map = kScratchRegister; |
| 2179 | if (expected.NeedsMap()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2180 | __ movp(map, FieldOperand(reg, HeapObject::kMapOffset)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2181 | |
| 2182 | if (expected.CanBeUndetectable()) { |
| 2183 | // Undetectable -> false. |
| 2184 | __ testb(FieldOperand(map, Map::kBitFieldOffset), |
| 2185 | Immediate(1 << Map::kIsUndetectable)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2186 | __ j(not_zero, instr->FalseLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2187 | } |
| 2188 | } |
| 2189 | |
| 2190 | if (expected.Contains(ToBooleanStub::SPEC_OBJECT)) { |
| 2191 | // spec object -> true. |
| 2192 | __ CmpInstanceType(map, FIRST_SPEC_OBJECT_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2193 | __ j(above_equal, instr->TrueLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2194 | } |
| 2195 | |
| 2196 | if (expected.Contains(ToBooleanStub::STRING)) { |
| 2197 | // String value -> false iff empty. |
| 2198 | Label not_string; |
| 2199 | __ CmpInstanceType(map, FIRST_NONSTRING_TYPE); |
| 2200 | __ j(above_equal, ¬_string, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2201 | __ cmpp(FieldOperand(reg, String::kLengthOffset), Immediate(0)); |
| 2202 | __ j(not_zero, instr->TrueLabel(chunk_)); |
| 2203 | __ jmp(instr->FalseLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2204 | __ bind(¬_string); |
| 2205 | } |
| 2206 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2207 | if (expected.Contains(ToBooleanStub::SYMBOL)) { |
| 2208 | // Symbol value -> true. |
| 2209 | __ CmpInstanceType(map, SYMBOL_TYPE); |
| 2210 | __ j(equal, instr->TrueLabel(chunk_)); |
| 2211 | } |
| 2212 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2213 | if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) { |
| 2214 | // heap number -> false iff +0, -0, or NaN. |
| 2215 | Label not_heap_number; |
| 2216 | __ CompareRoot(map, Heap::kHeapNumberMapRootIndex); |
| 2217 | __ j(not_equal, ¬_heap_number, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2218 | XMMRegister xmm_scratch = double_scratch0(); |
| 2219 | __ xorps(xmm_scratch, xmm_scratch); |
| 2220 | __ ucomisd(xmm_scratch, FieldOperand(reg, HeapNumber::kValueOffset)); |
| 2221 | __ j(zero, instr->FalseLabel(chunk_)); |
| 2222 | __ jmp(instr->TrueLabel(chunk_)); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2223 | __ bind(¬_heap_number); |
| 2224 | } |
| 2225 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2226 | if (!expected.IsGeneric()) { |
| 2227 | // We've seen something for the first time -> deopt. |
| 2228 | // This can only happen if we are not generic already. |
| 2229 | DeoptimizeIf(no_condition, instr, "unexpected object"); |
| 2230 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2231 | } |
| 2232 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2233 | } |
| 2234 | |
| 2235 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2236 | void LCodeGen::EmitGoto(int block) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2237 | if (!IsNextEmittedBlock(block)) { |
| 2238 | __ jmp(chunk_->GetAssemblyLabel(chunk_->LookupDestination(block))); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2239 | } |
| 2240 | } |
| 2241 | |
| 2242 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2243 | void LCodeGen::DoGoto(LGoto* instr) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2244 | EmitGoto(instr->block_id()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2245 | } |
| 2246 | |
| 2247 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2248 | inline Condition LCodeGen::TokenToCondition(Token::Value op, bool is_unsigned) { |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2249 | Condition cond = no_condition; |
| 2250 | switch (op) { |
| 2251 | case Token::EQ: |
| 2252 | case Token::EQ_STRICT: |
| 2253 | cond = equal; |
| 2254 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2255 | case Token::NE: |
| 2256 | case Token::NE_STRICT: |
| 2257 | cond = not_equal; |
| 2258 | break; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2259 | case Token::LT: |
| 2260 | cond = is_unsigned ? below : less; |
| 2261 | break; |
| 2262 | case Token::GT: |
| 2263 | cond = is_unsigned ? above : greater; |
| 2264 | break; |
| 2265 | case Token::LTE: |
| 2266 | cond = is_unsigned ? below_equal : less_equal; |
| 2267 | break; |
| 2268 | case Token::GTE: |
| 2269 | cond = is_unsigned ? above_equal : greater_equal; |
| 2270 | break; |
| 2271 | case Token::IN: |
| 2272 | case Token::INSTANCEOF: |
| 2273 | default: |
| 2274 | UNREACHABLE(); |
| 2275 | } |
| 2276 | return cond; |
| 2277 | } |
| 2278 | |
| 2279 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2280 | void LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) { |
| 2281 | LOperand* left = instr->left(); |
| 2282 | LOperand* right = instr->right(); |
| 2283 | bool is_unsigned = |
| 2284 | instr->is_double() || |
| 2285 | instr->hydrogen()->left()->CheckFlag(HInstruction::kUint32) || |
| 2286 | instr->hydrogen()->right()->CheckFlag(HInstruction::kUint32); |
| 2287 | Condition cc = TokenToCondition(instr->op(), is_unsigned); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2288 | |
| 2289 | if (left->IsConstantOperand() && right->IsConstantOperand()) { |
| 2290 | // We can statically evaluate the comparison. |
| 2291 | double left_val = ToDouble(LConstantOperand::cast(left)); |
| 2292 | double right_val = ToDouble(LConstantOperand::cast(right)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2293 | int next_block = EvalComparison(instr->op(), left_val, right_val) ? |
| 2294 | instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2295 | EmitGoto(next_block); |
| 2296 | } else { |
| 2297 | if (instr->is_double()) { |
| 2298 | // Don't base result on EFLAGS when a NaN is involved. Instead |
| 2299 | // jump to the false block. |
| 2300 | __ ucomisd(ToDoubleRegister(left), ToDoubleRegister(right)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2301 | __ j(parity_even, instr->FalseLabel(chunk_)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2302 | } else { |
| 2303 | int32_t value; |
| 2304 | if (right->IsConstantOperand()) { |
| 2305 | value = ToInteger32(LConstantOperand::cast(right)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2306 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2307 | __ Cmp(ToRegister(left), Smi::FromInt(value)); |
| 2308 | } else { |
| 2309 | __ cmpl(ToRegister(left), Immediate(value)); |
| 2310 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2311 | } else if (left->IsConstantOperand()) { |
| 2312 | value = ToInteger32(LConstantOperand::cast(left)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2313 | if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2314 | if (right->IsRegister()) { |
| 2315 | __ Cmp(ToRegister(right), Smi::FromInt(value)); |
| 2316 | } else { |
| 2317 | __ Cmp(ToOperand(right), Smi::FromInt(value)); |
| 2318 | } |
| 2319 | } else if (right->IsRegister()) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2320 | __ cmpl(ToRegister(right), Immediate(value)); |
| 2321 | } else { |
| 2322 | __ cmpl(ToOperand(right), Immediate(value)); |
| 2323 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2324 | // We commuted the operands, so commute the condition. |
| 2325 | cc = CommuteCondition(cc); |
| 2326 | } else if (instr->hydrogen_value()->representation().IsSmi()) { |
| 2327 | if (right->IsRegister()) { |
| 2328 | __ cmpp(ToRegister(left), ToRegister(right)); |
| 2329 | } else { |
| 2330 | __ cmpp(ToRegister(left), ToOperand(right)); |
| 2331 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2332 | } else { |
| 2333 | if (right->IsRegister()) { |
| 2334 | __ cmpl(ToRegister(left), ToRegister(right)); |
| 2335 | } else { |
| 2336 | __ cmpl(ToRegister(left), ToOperand(right)); |
| 2337 | } |
| 2338 | } |
| 2339 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2340 | EmitBranch(instr, cc); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2341 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2342 | } |
| 2343 | |
| 2344 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2345 | void LCodeGen::DoCmpObjectEqAndBranch(LCmpObjectEqAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2346 | Register left = ToRegister(instr->left()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2347 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2348 | if (instr->right()->IsConstantOperand()) { |
| 2349 | Handle<Object> right = ToHandle(LConstantOperand::cast(instr->right())); |
| 2350 | __ Cmp(left, right); |
| 2351 | } else { |
| 2352 | Register right = ToRegister(instr->right()); |
| 2353 | __ cmpp(left, right); |
| 2354 | } |
| 2355 | EmitBranch(instr, equal); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2356 | } |
| 2357 | |
| 2358 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2359 | void LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) { |
| 2360 | if (instr->hydrogen()->representation().IsTagged()) { |
| 2361 | Register input_reg = ToRegister(instr->object()); |
| 2362 | __ Cmp(input_reg, factory()->the_hole_value()); |
| 2363 | EmitBranch(instr, equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2364 | return; |
| 2365 | } |
| 2366 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2367 | XMMRegister input_reg = ToDoubleRegister(instr->object()); |
| 2368 | __ ucomisd(input_reg, input_reg); |
| 2369 | EmitFalseBranch(instr, parity_odd); |
| 2370 | |
| 2371 | __ subp(rsp, Immediate(kDoubleSize)); |
| 2372 | __ movsd(MemOperand(rsp, 0), input_reg); |
| 2373 | __ addp(rsp, Immediate(kDoubleSize)); |
| 2374 | |
| 2375 | int offset = sizeof(kHoleNanUpper32); |
| 2376 | __ cmpl(MemOperand(rsp, -offset), Immediate(kHoleNanUpper32)); |
| 2377 | EmitBranch(instr, equal); |
| 2378 | } |
| 2379 | |
| 2380 | |
| 2381 | void LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) { |
| 2382 | Representation rep = instr->hydrogen()->value()->representation(); |
| 2383 | DCHECK(!rep.IsInteger32()); |
| 2384 | |
| 2385 | if (rep.IsDouble()) { |
| 2386 | XMMRegister value = ToDoubleRegister(instr->value()); |
| 2387 | XMMRegister xmm_scratch = double_scratch0(); |
| 2388 | __ xorps(xmm_scratch, xmm_scratch); |
| 2389 | __ ucomisd(xmm_scratch, value); |
| 2390 | EmitFalseBranch(instr, not_equal); |
| 2391 | __ movmskpd(kScratchRegister, value); |
| 2392 | __ testl(kScratchRegister, Immediate(1)); |
| 2393 | EmitBranch(instr, not_zero); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2394 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2395 | Register value = ToRegister(instr->value()); |
| 2396 | Handle<Map> map = masm()->isolate()->factory()->heap_number_map(); |
| 2397 | __ CheckMap(value, map, instr->FalseLabel(chunk()), DO_SMI_CHECK); |
| 2398 | __ cmpl(FieldOperand(value, HeapNumber::kExponentOffset), |
| 2399 | Immediate(0x1)); |
| 2400 | EmitFalseBranch(instr, no_overflow); |
| 2401 | __ cmpl(FieldOperand(value, HeapNumber::kMantissaOffset), |
| 2402 | Immediate(0x00000000)); |
| 2403 | EmitBranch(instr, equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2404 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2405 | } |
| 2406 | |
| 2407 | |
| 2408 | Condition LCodeGen::EmitIsObject(Register input, |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2409 | Label* is_not_object, |
| 2410 | Label* is_object) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2411 | DCHECK(!input.is(kScratchRegister)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2412 | |
| 2413 | __ JumpIfSmi(input, is_not_object); |
| 2414 | |
| 2415 | __ CompareRoot(input, Heap::kNullValueRootIndex); |
| 2416 | __ j(equal, is_object); |
| 2417 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2418 | __ movp(kScratchRegister, FieldOperand(input, HeapObject::kMapOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2419 | // Undetectable objects behave like undefined. |
| 2420 | __ testb(FieldOperand(kScratchRegister, Map::kBitFieldOffset), |
| 2421 | Immediate(1 << Map::kIsUndetectable)); |
| 2422 | __ j(not_zero, is_not_object); |
| 2423 | |
| 2424 | __ movzxbl(kScratchRegister, |
| 2425 | FieldOperand(kScratchRegister, Map::kInstanceTypeOffset)); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2426 | __ cmpb(kScratchRegister, Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2427 | __ j(below, is_not_object); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2428 | __ cmpb(kScratchRegister, Immediate(LAST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2429 | return below_equal; |
| 2430 | } |
| 2431 | |
| 2432 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2433 | void LCodeGen::DoIsObjectAndBranch(LIsObjectAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2434 | Register reg = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2435 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2436 | Condition true_cond = EmitIsObject( |
| 2437 | reg, instr->FalseLabel(chunk_), instr->TrueLabel(chunk_)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2438 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2439 | EmitBranch(instr, true_cond); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2440 | } |
| 2441 | |
| 2442 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2443 | Condition LCodeGen::EmitIsString(Register input, |
| 2444 | Register temp1, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2445 | Label* is_not_string, |
| 2446 | SmiCheck check_needed = INLINE_SMI_CHECK) { |
| 2447 | if (check_needed == INLINE_SMI_CHECK) { |
| 2448 | __ JumpIfSmi(input, is_not_string); |
| 2449 | } |
| 2450 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2451 | Condition cond = masm_->IsObjectStringType(input, temp1, temp1); |
| 2452 | |
| 2453 | return cond; |
| 2454 | } |
| 2455 | |
| 2456 | |
| 2457 | void LCodeGen::DoIsStringAndBranch(LIsStringAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2458 | Register reg = ToRegister(instr->value()); |
| 2459 | Register temp = ToRegister(instr->temp()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2460 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2461 | SmiCheck check_needed = |
| 2462 | instr->hydrogen()->value()->type().IsHeapObject() |
| 2463 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2464 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2465 | Condition true_cond = EmitIsString( |
| 2466 | reg, temp, instr->FalseLabel(chunk_), check_needed); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2467 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2468 | EmitBranch(instr, true_cond); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2469 | } |
| 2470 | |
| 2471 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2472 | void LCodeGen::DoIsSmiAndBranch(LIsSmiAndBranch* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2473 | Condition is_smi; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2474 | if (instr->value()->IsRegister()) { |
| 2475 | Register input = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2476 | is_smi = masm()->CheckSmi(input); |
| 2477 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2478 | Operand input = ToOperand(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2479 | is_smi = masm()->CheckSmi(input); |
| 2480 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2481 | EmitBranch(instr, is_smi); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2482 | } |
| 2483 | |
| 2484 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2485 | void LCodeGen::DoIsUndetectableAndBranch(LIsUndetectableAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2486 | Register input = ToRegister(instr->value()); |
| 2487 | Register temp = ToRegister(instr->temp()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2488 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2489 | if (!instr->hydrogen()->value()->type().IsHeapObject()) { |
| 2490 | __ JumpIfSmi(input, instr->FalseLabel(chunk_)); |
| 2491 | } |
| 2492 | __ movp(temp, FieldOperand(input, HeapObject::kMapOffset)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2493 | __ testb(FieldOperand(temp, Map::kBitFieldOffset), |
| 2494 | Immediate(1 << Map::kIsUndetectable)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2495 | EmitBranch(instr, not_zero); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2496 | } |
| 2497 | |
| 2498 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2499 | void LCodeGen::DoStringCompareAndBranch(LStringCompareAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2500 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2501 | Token::Value op = instr->op(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2502 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2503 | Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2504 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 2505 | |
| 2506 | Condition condition = TokenToCondition(op, false); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2507 | __ testp(rax, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2508 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2509 | EmitBranch(instr, condition); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2510 | } |
| 2511 | |
| 2512 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2513 | static InstanceType TestType(HHasInstanceTypeAndBranch* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2514 | InstanceType from = instr->from(); |
| 2515 | InstanceType to = instr->to(); |
| 2516 | if (from == FIRST_TYPE) return to; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2517 | DCHECK(from == to || to == LAST_TYPE); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2518 | return from; |
| 2519 | } |
| 2520 | |
| 2521 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2522 | static Condition BranchCondition(HHasInstanceTypeAndBranch* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2523 | InstanceType from = instr->from(); |
| 2524 | InstanceType to = instr->to(); |
| 2525 | if (from == to) return equal; |
| 2526 | if (to == LAST_TYPE) return above_equal; |
| 2527 | if (from == FIRST_TYPE) return below_equal; |
| 2528 | UNREACHABLE(); |
| 2529 | return equal; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2530 | } |
| 2531 | |
| 2532 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2533 | void LCodeGen::DoHasInstanceTypeAndBranch(LHasInstanceTypeAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2534 | Register input = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2535 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2536 | if (!instr->hydrogen()->value()->type().IsHeapObject()) { |
| 2537 | __ JumpIfSmi(input, instr->FalseLabel(chunk_)); |
| 2538 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2539 | |
| 2540 | __ CmpObjectType(input, TestType(instr->hydrogen()), kScratchRegister); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2541 | EmitBranch(instr, BranchCondition(instr->hydrogen())); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2542 | } |
| 2543 | |
| 2544 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2545 | void LCodeGen::DoGetCachedArrayIndex(LGetCachedArrayIndex* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2546 | Register input = ToRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2547 | Register result = ToRegister(instr->result()); |
| 2548 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2549 | __ AssertString(input); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2550 | |
| 2551 | __ movl(result, FieldOperand(input, String::kHashFieldOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2552 | DCHECK(String::kHashShift >= kSmiTagSize); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2553 | __ IndexFromHash(result, result); |
| 2554 | } |
| 2555 | |
| 2556 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2557 | void LCodeGen::DoHasCachedArrayIndexAndBranch( |
| 2558 | LHasCachedArrayIndexAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2559 | Register input = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2560 | |
| 2561 | __ testl(FieldOperand(input, String::kHashFieldOffset), |
| 2562 | Immediate(String::kContainsCachedArrayIndexMask)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2563 | EmitBranch(instr, equal); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2564 | } |
| 2565 | |
| 2566 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2567 | // Branches to a label or falls through with the answer in the z flag. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2568 | // Trashes the temp register. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2569 | void LCodeGen::EmitClassOfTest(Label* is_true, |
| 2570 | Label* is_false, |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2571 | Handle<String> class_name, |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2572 | Register input, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2573 | Register temp, |
| 2574 | Register temp2) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2575 | DCHECK(!input.is(temp)); |
| 2576 | DCHECK(!input.is(temp2)); |
| 2577 | DCHECK(!temp.is(temp2)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2578 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2579 | __ JumpIfSmi(input, is_false); |
| 2580 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2581 | if (String::Equals(isolate()->factory()->Function_string(), class_name)) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2582 | // Assuming the following assertions, we can use the same compares to test |
| 2583 | // for both being a function type and being in the object type range. |
| 2584 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
| 2585 | STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2586 | FIRST_SPEC_OBJECT_TYPE + 1); |
| 2587 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2588 | LAST_SPEC_OBJECT_TYPE - 1); |
| 2589 | STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE); |
| 2590 | __ CmpObjectType(input, FIRST_SPEC_OBJECT_TYPE, temp); |
| 2591 | __ j(below, is_false); |
| 2592 | __ j(equal, is_true); |
| 2593 | __ CmpInstanceType(temp, LAST_SPEC_OBJECT_TYPE); |
| 2594 | __ j(equal, is_true); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2595 | } else { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2596 | // Faster code path to avoid two compares: subtract lower bound from the |
| 2597 | // actual type and do a signed compare with the width of the type range. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2598 | __ movp(temp, FieldOperand(input, HeapObject::kMapOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2599 | __ movzxbl(temp2, FieldOperand(temp, Map::kInstanceTypeOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2600 | __ subp(temp2, Immediate(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 2601 | __ cmpp(temp2, Immediate(LAST_NONCALLABLE_SPEC_OBJECT_TYPE - |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2602 | FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
| 2603 | __ j(above, is_false); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2604 | } |
| 2605 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2606 | // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2607 | // Check if the constructor in the map is a function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2608 | __ movp(temp, FieldOperand(temp, Map::kConstructorOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2609 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2610 | // Objects with a non-function constructor have class 'Object'. |
| 2611 | __ CmpObjectType(temp, JS_FUNCTION_TYPE, kScratchRegister); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2612 | if (String::Equals(class_name, isolate()->factory()->Object_string())) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2613 | __ j(not_equal, is_true); |
| 2614 | } else { |
| 2615 | __ j(not_equal, is_false); |
| 2616 | } |
| 2617 | |
| 2618 | // temp now contains the constructor function. Grab the |
| 2619 | // instance class name from there. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2620 | __ movp(temp, FieldOperand(temp, JSFunction::kSharedFunctionInfoOffset)); |
| 2621 | __ movp(temp, FieldOperand(temp, |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2622 | SharedFunctionInfo::kInstanceClassNameOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2623 | // The class name we are testing against is internalized since it's a literal. |
| 2624 | // The name in the constructor is internalized because of the way the context |
| 2625 | // is booted. This routine isn't expected to work for random API-created |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2626 | // classes and it doesn't have to because you can't access it with natives |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2627 | // syntax. Since both sides are internalized it is sufficient to use an |
| 2628 | // identity comparison. |
| 2629 | DCHECK(class_name->IsInternalizedString()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2630 | __ Cmp(temp, class_name); |
| 2631 | // End with the answer in the z flag. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2632 | } |
| 2633 | |
| 2634 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2635 | void LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2636 | Register input = ToRegister(instr->value()); |
| 2637 | Register temp = ToRegister(instr->temp()); |
| 2638 | Register temp2 = ToRegister(instr->temp2()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2639 | Handle<String> class_name = instr->hydrogen()->class_name(); |
| 2640 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2641 | EmitClassOfTest(instr->TrueLabel(chunk_), instr->FalseLabel(chunk_), |
| 2642 | class_name, input, temp, temp2); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2643 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2644 | EmitBranch(instr, equal); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2645 | } |
| 2646 | |
| 2647 | |
| 2648 | void LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2649 | Register reg = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2650 | |
| 2651 | __ Cmp(FieldOperand(reg, HeapObject::kMapOffset), instr->map()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2652 | EmitBranch(instr, equal); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2653 | } |
| 2654 | |
| 2655 | |
| 2656 | void LCodeGen::DoInstanceOf(LInstanceOf* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2657 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 2658 | InstanceofStub stub(isolate(), InstanceofStub::kNoFlags); |
| 2659 | __ Push(ToRegister(instr->left())); |
| 2660 | __ Push(ToRegister(instr->right())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2661 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2662 | Label true_value, done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2663 | __ testp(rax, rax); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2664 | __ j(zero, &true_value, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2665 | __ LoadRoot(ToRegister(instr->result()), Heap::kFalseValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2666 | __ jmp(&done, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2667 | __ bind(&true_value); |
| 2668 | __ LoadRoot(ToRegister(instr->result()), Heap::kTrueValueRootIndex); |
| 2669 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2670 | } |
| 2671 | |
| 2672 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2673 | void LCodeGen::DoInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2674 | class DeferredInstanceOfKnownGlobal FINAL : public LDeferredCode { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2675 | public: |
| 2676 | DeferredInstanceOfKnownGlobal(LCodeGen* codegen, |
| 2677 | LInstanceOfKnownGlobal* instr) |
| 2678 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2679 | void Generate() OVERRIDE { |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 2680 | codegen()->DoDeferredInstanceOfKnownGlobal(instr_, &map_check_); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2681 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2682 | LInstruction* instr() OVERRIDE { return instr_; } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2683 | Label* map_check() { return &map_check_; } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2684 | private: |
| 2685 | LInstanceOfKnownGlobal* instr_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2686 | Label map_check_; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2687 | }; |
| 2688 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2689 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2690 | DeferredInstanceOfKnownGlobal* deferred; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2691 | deferred = new(zone()) DeferredInstanceOfKnownGlobal(this, instr); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2692 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2693 | Label done, false_result; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2694 | Register object = ToRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2695 | |
| 2696 | // A Smi is not an instance of anything. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2697 | __ JumpIfSmi(object, &false_result, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2698 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2699 | // This is the inlined call site instanceof cache. The two occurences of the |
| 2700 | // hole value will be patched to the last map/result pair generated by the |
| 2701 | // instanceof stub. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2702 | Label cache_miss; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2703 | // Use a temp register to avoid memory operands with variable lengths. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2704 | Register map = ToRegister(instr->temp()); |
| 2705 | __ movp(map, FieldOperand(object, HeapObject::kMapOffset)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2706 | __ bind(deferred->map_check()); // Label for calculating code patching. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2707 | Handle<Cell> cache_cell = factory()->NewCell(factory()->the_hole_value()); |
| 2708 | __ Move(kScratchRegister, cache_cell, RelocInfo::CELL); |
| 2709 | __ cmpp(map, Operand(kScratchRegister, 0)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2710 | __ j(not_equal, &cache_miss, Label::kNear); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2711 | // Patched to load either true or false. |
| 2712 | __ LoadRoot(ToRegister(instr->result()), Heap::kTheHoleValueRootIndex); |
| 2713 | #ifdef DEBUG |
| 2714 | // Check that the code size between patch label and patch sites is invariant. |
| 2715 | Label end_of_patched_code; |
| 2716 | __ bind(&end_of_patched_code); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2717 | DCHECK(true); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2718 | #endif |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2719 | __ jmp(&done, Label::kNear); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2720 | |
| 2721 | // The inlined call site cache did not match. Check for null and string |
| 2722 | // before calling the deferred code. |
| 2723 | __ bind(&cache_miss); // Null is not an instance of anything. |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2724 | __ CompareRoot(object, Heap::kNullValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2725 | __ j(equal, &false_result, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2726 | |
| 2727 | // String values are not instances of anything. |
| 2728 | __ JumpIfNotString(object, kScratchRegister, deferred->entry()); |
| 2729 | |
| 2730 | __ bind(&false_result); |
| 2731 | __ LoadRoot(ToRegister(instr->result()), Heap::kFalseValueRootIndex); |
| 2732 | |
| 2733 | __ bind(deferred->exit()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2734 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2735 | } |
| 2736 | |
| 2737 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 2738 | void LCodeGen::DoDeferredInstanceOfKnownGlobal(LInstanceOfKnownGlobal* instr, |
| 2739 | Label* map_check) { |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2740 | { |
| 2741 | PushSafepointRegistersScope scope(this); |
| 2742 | InstanceofStub::Flags flags = static_cast<InstanceofStub::Flags>( |
| 2743 | InstanceofStub::kNoFlags | InstanceofStub::kCallSiteInlineCheck); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2744 | InstanceofStub stub(isolate(), flags); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2745 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2746 | __ Push(ToRegister(instr->value())); |
| 2747 | __ Push(instr->function()); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2748 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2749 | static const int kAdditionalDelta = kPointerSize == kInt64Size ? 10 : 16; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2750 | int delta = |
| 2751 | masm_->SizeOfCodeGeneratedSince(map_check) + kAdditionalDelta; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2752 | DCHECK(delta >= 0); |
| 2753 | __ PushImm32(delta); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2754 | |
| 2755 | // We are pushing three values on the stack but recording a |
| 2756 | // safepoint with two arguments because stub is going to |
| 2757 | // remove the third argument from the stack before jumping |
| 2758 | // to instanceof builtin on the slow path. |
| 2759 | CallCodeGeneric(stub.GetCode(), |
| 2760 | RelocInfo::CODE_TARGET, |
| 2761 | instr, |
| 2762 | RECORD_SAFEPOINT_WITH_REGISTERS, |
| 2763 | 2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2764 | DCHECK(delta == masm_->SizeOfCodeGeneratedSince(map_check)); |
| 2765 | LEnvironment* env = instr->GetDeferredLazyDeoptimizationEnvironment(); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 2766 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2767 | // Move result to a register that survives the end of the |
| 2768 | // PushSafepointRegisterScope. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2769 | __ movp(kScratchRegister, rax); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2770 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2771 | __ testp(kScratchRegister, kScratchRegister); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2772 | Label load_false; |
| 2773 | Label done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2774 | __ j(not_zero, &load_false, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2775 | __ LoadRoot(rax, Heap::kTrueValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2776 | __ jmp(&done, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2777 | __ bind(&load_false); |
| 2778 | __ LoadRoot(rax, Heap::kFalseValueRootIndex); |
| 2779 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2780 | } |
| 2781 | |
| 2782 | |
| 2783 | void LCodeGen::DoCmpT(LCmpT* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2784 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2785 | Token::Value op = instr->op(); |
| 2786 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2787 | Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2788 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 2789 | |
| 2790 | Condition condition = TokenToCondition(op, false); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2791 | Label true_value, done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2792 | __ testp(rax, rax); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2793 | __ j(condition, &true_value, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2794 | __ LoadRoot(ToRegister(instr->result()), Heap::kFalseValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2795 | __ jmp(&done, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2796 | __ bind(&true_value); |
| 2797 | __ LoadRoot(ToRegister(instr->result()), Heap::kTrueValueRootIndex); |
| 2798 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2799 | } |
| 2800 | |
| 2801 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2802 | void LCodeGen::DoReturn(LReturn* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2803 | if (FLAG_trace && info()->IsOptimizing()) { |
| 2804 | // Preserve the return value on the stack and rely on the runtime call |
| 2805 | // to return the value in the same register. We're leaving the code |
| 2806 | // managed by the register allocator and tearing down the frame, it's |
| 2807 | // safe to write to the context register. |
| 2808 | __ Push(rax); |
| 2809 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2810 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 2811 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2812 | if (info()->saves_caller_doubles()) { |
| 2813 | RestoreCallerDoubles(); |
| 2814 | } |
| 2815 | int no_frame_start = -1; |
| 2816 | if (NeedsEagerFrame()) { |
| 2817 | __ movp(rsp, rbp); |
| 2818 | __ popq(rbp); |
| 2819 | no_frame_start = masm_->pc_offset(); |
| 2820 | } |
| 2821 | if (instr->has_constant_parameter_count()) { |
| 2822 | __ Ret((ToInteger32(instr->constant_parameter_count()) + 1) * kPointerSize, |
| 2823 | rcx); |
| 2824 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2825 | DCHECK(info()->IsStub()); // Functions would need to drop one more value. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2826 | Register reg = ToRegister(instr->parameter_count()); |
| 2827 | // The argument count parameter is a smi |
| 2828 | __ SmiToInteger32(reg, reg); |
| 2829 | Register return_addr_reg = reg.is(rcx) ? rbx : rcx; |
| 2830 | __ PopReturnAddressTo(return_addr_reg); |
| 2831 | __ shlp(reg, Immediate(kPointerSizeLog2)); |
| 2832 | __ addp(rsp, reg); |
| 2833 | __ jmp(return_addr_reg); |
| 2834 | } |
| 2835 | if (no_frame_start != -1) { |
| 2836 | info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); |
| 2837 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2838 | } |
| 2839 | |
| 2840 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2841 | void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2842 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2843 | __ LoadGlobalCell(result, instr->hydrogen()->cell().handle()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2844 | if (instr->hydrogen()->RequiresHoleCheck()) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2845 | __ CompareRoot(result, Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2846 | DeoptimizeIf(equal, instr, "hole"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2847 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2848 | } |
| 2849 | |
| 2850 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2851 | template <class T> |
| 2852 | void LCodeGen::EmitVectorLoadICRegisters(T* instr) { |
| 2853 | DCHECK(FLAG_vector_ics); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2854 | Register vector_register = ToRegister(instr->temp_vector()); |
| 2855 | Register slot_register = VectorLoadICDescriptor::SlotRegister(); |
| 2856 | DCHECK(vector_register.is(VectorLoadICDescriptor::VectorRegister())); |
| 2857 | DCHECK(slot_register.is(rax)); |
| 2858 | |
| 2859 | AllowDeferredHandleDereference vector_structure_check; |
| 2860 | Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); |
| 2861 | __ Move(vector_register, vector); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2862 | // No need to allocate this register. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2863 | FeedbackVectorICSlot slot = instr->hydrogen()->slot(); |
| 2864 | int index = vector->GetIndex(slot); |
| 2865 | __ Move(slot_register, Smi::FromInt(index)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2866 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2867 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2868 | |
| 2869 | void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) { |
| 2870 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 2871 | DCHECK(ToRegister(instr->global_object()) |
| 2872 | .is(LoadDescriptor::ReceiverRegister())); |
| 2873 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 2874 | |
| 2875 | __ Move(LoadDescriptor::NameRegister(), instr->name()); |
| 2876 | if (FLAG_vector_ics) { |
| 2877 | EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr); |
| 2878 | } |
| 2879 | ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2880 | Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode).code(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2881 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2882 | } |
| 2883 | |
| 2884 | |
| 2885 | void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2886 | Register value = ToRegister(instr->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2887 | Handle<Cell> cell_handle = instr->hydrogen()->cell().handle(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2888 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2889 | // If the cell we are storing to contains the hole it could have |
| 2890 | // been deleted from the property dictionary. In that case, we need |
| 2891 | // to update the property details in the property dictionary to mark |
| 2892 | // it as no longer deleted. We deoptimize in that case. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2893 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2894 | // We have a temp because CompareRoot might clobber kScratchRegister. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2895 | Register cell = ToRegister(instr->temp()); |
| 2896 | DCHECK(!value.is(cell)); |
| 2897 | __ Move(cell, cell_handle, RelocInfo::CELL); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2898 | __ CompareRoot(Operand(cell, 0), Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2899 | DeoptimizeIf(equal, instr, "hole"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2900 | // Store the value. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2901 | __ movp(Operand(cell, 0), value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2902 | } else { |
| 2903 | // Store the value. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2904 | __ Move(kScratchRegister, cell_handle, RelocInfo::CELL); |
| 2905 | __ movp(Operand(kScratchRegister, 0), value); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 2906 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2907 | // Cells are always rescanned, so no write barrier here. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2908 | } |
| 2909 | |
| 2910 | |
| 2911 | void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2912 | Register context = ToRegister(instr->context()); |
| 2913 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2914 | __ movp(result, ContextOperand(context, instr->slot_index())); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2915 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2916 | __ CompareRoot(result, Heap::kTheHoleValueRootIndex); |
| 2917 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2918 | DeoptimizeIf(equal, instr, "hole"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2919 | } else { |
| 2920 | Label is_not_hole; |
| 2921 | __ j(not_equal, &is_not_hole, Label::kNear); |
| 2922 | __ LoadRoot(result, Heap::kUndefinedValueRootIndex); |
| 2923 | __ bind(&is_not_hole); |
| 2924 | } |
| 2925 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2926 | } |
| 2927 | |
| 2928 | |
| 2929 | void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) { |
| 2930 | Register context = ToRegister(instr->context()); |
| 2931 | Register value = ToRegister(instr->value()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2932 | |
| 2933 | Operand target = ContextOperand(context, instr->slot_index()); |
| 2934 | |
| 2935 | Label skip_assignment; |
| 2936 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 2937 | __ CompareRoot(target, Heap::kTheHoleValueRootIndex); |
| 2938 | if (instr->hydrogen()->DeoptimizesOnHole()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2939 | DeoptimizeIf(equal, instr, "hole"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2940 | } else { |
| 2941 | __ j(not_equal, &skip_assignment); |
| 2942 | } |
| 2943 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2944 | __ movp(target, value); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2945 | |
| 2946 | if (instr->hydrogen()->NeedsWriteBarrier()) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2947 | SmiCheck check_needed = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2948 | instr->hydrogen()->value()->type().IsHeapObject() |
| 2949 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2950 | int offset = Context::SlotOffset(instr->slot_index()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2951 | Register scratch = ToRegister(instr->temp()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2952 | __ RecordWriteContextSlot(context, |
| 2953 | offset, |
| 2954 | value, |
| 2955 | scratch, |
| 2956 | kSaveFPRegs, |
| 2957 | EMIT_REMEMBERED_SET, |
| 2958 | check_needed); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 2959 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2960 | |
| 2961 | __ bind(&skip_assignment); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2962 | } |
| 2963 | |
| 2964 | |
| 2965 | void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2966 | HObjectAccess access = instr->hydrogen()->access(); |
| 2967 | int offset = access.offset(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 2968 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2969 | if (access.IsExternalMemory()) { |
| 2970 | Register result = ToRegister(instr->result()); |
| 2971 | if (instr->object()->IsConstantOperand()) { |
| 2972 | DCHECK(result.is(rax)); |
| 2973 | __ load_rax(ToExternalReference(LConstantOperand::cast(instr->object()))); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2974 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2975 | Register object = ToRegister(instr->object()); |
| 2976 | __ Load(result, MemOperand(object, offset), access.representation()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2977 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2978 | return; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2979 | } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2980 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2981 | Register object = ToRegister(instr->object()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2982 | if (instr->hydrogen()->representation().IsDouble()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 2983 | DCHECK(access.IsInobject()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2984 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 2985 | __ movsd(result, FieldOperand(object, offset)); |
| 2986 | return; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2987 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2988 | |
| 2989 | Register result = ToRegister(instr->result()); |
| 2990 | if (!access.IsInobject()) { |
| 2991 | __ movp(result, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 2992 | object = result; |
| 2993 | } |
| 2994 | |
| 2995 | Representation representation = access.representation(); |
| 2996 | if (representation.IsSmi() && SmiValuesAre32Bits() && |
| 2997 | instr->hydrogen()->representation().IsInteger32()) { |
| 2998 | if (FLAG_debug_code) { |
| 2999 | Register scratch = kScratchRegister; |
| 3000 | __ Load(scratch, FieldOperand(object, offset), representation); |
| 3001 | __ AssertSmi(scratch); |
| 3002 | } |
| 3003 | |
| 3004 | // Read int value directly from upper half of the smi. |
| 3005 | STATIC_ASSERT(kSmiTag == 0); |
| 3006 | DCHECK(kSmiTagSize + kSmiShiftSize == 32); |
| 3007 | offset += kPointerSize / 2; |
| 3008 | representation = Representation::Integer32(); |
| 3009 | } |
| 3010 | __ Load(result, FieldOperand(object, offset), representation); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3011 | } |
| 3012 | |
| 3013 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3014 | void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3015 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 3016 | DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); |
| 3017 | DCHECK(ToRegister(instr->result()).is(rax)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3018 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3019 | __ Move(LoadDescriptor::NameRegister(), instr->name()); |
| 3020 | if (FLAG_vector_ics) { |
| 3021 | EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr); |
| 3022 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3023 | Handle<Code> ic = |
| 3024 | CodeFactory::LoadICInOptimizedCode(isolate(), NOT_CONTEXTUAL).code(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3025 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3026 | } |
| 3027 | |
| 3028 | |
| 3029 | void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3030 | Register function = ToRegister(instr->function()); |
| 3031 | Register result = ToRegister(instr->result()); |
| 3032 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3033 | // Get the prototype or initial map from the function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3034 | __ movp(result, |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3035 | FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
| 3036 | |
| 3037 | // Check that the function has a prototype or an initial map. |
| 3038 | __ CompareRoot(result, Heap::kTheHoleValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3039 | DeoptimizeIf(equal, instr, "hole"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3040 | |
| 3041 | // If the function does not have an initial map, we're done. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3042 | Label done; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3043 | __ CmpObjectType(result, MAP_TYPE, kScratchRegister); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3044 | __ j(not_equal, &done, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3045 | |
| 3046 | // Get the prototype from the initial map. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3047 | __ movp(result, FieldOperand(result, Map::kPrototypeOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3048 | |
| 3049 | // All done. |
| 3050 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3051 | } |
| 3052 | |
| 3053 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3054 | void LCodeGen::DoLoadRoot(LLoadRoot* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3055 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3056 | __ LoadRoot(result, instr->index()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3057 | } |
| 3058 | |
| 3059 | |
| 3060 | void LCodeGen::DoAccessArgumentsAt(LAccessArgumentsAt* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3061 | Register arguments = ToRegister(instr->arguments()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3062 | Register result = ToRegister(instr->result()); |
| 3063 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3064 | if (instr->length()->IsConstantOperand() && |
| 3065 | instr->index()->IsConstantOperand()) { |
| 3066 | int32_t const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 3067 | int32_t const_length = ToInteger32(LConstantOperand::cast(instr->length())); |
| 3068 | if (const_index >= 0 && const_index < const_length) { |
| 3069 | StackArgumentsAccessor args(arguments, const_length, |
| 3070 | ARGUMENTS_DONT_CONTAIN_RECEIVER); |
| 3071 | __ movp(result, args.GetArgumentOperand(const_index)); |
| 3072 | } else if (FLAG_debug_code) { |
| 3073 | __ int3(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3074 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3075 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3076 | Register length = ToRegister(instr->length()); |
| 3077 | // There are two words between the frame pointer and the last argument. |
| 3078 | // Subtracting from length accounts for one of them add one more. |
| 3079 | if (instr->index()->IsRegister()) { |
| 3080 | __ subl(length, ToRegister(instr->index())); |
| 3081 | } else { |
| 3082 | __ subl(length, ToOperand(instr->index())); |
| 3083 | } |
| 3084 | StackArgumentsAccessor args(arguments, length, |
| 3085 | ARGUMENTS_DONT_CONTAIN_RECEIVER); |
| 3086 | __ movp(result, args.GetArgumentOperand(0)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3087 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3088 | } |
| 3089 | |
| 3090 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3091 | void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 3092 | ElementsKind elements_kind = instr->elements_kind(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3093 | LOperand* key = instr->key(); |
| 3094 | if (kPointerSize == kInt32Size && !key->IsConstantOperand()) { |
| 3095 | Register key_reg = ToRegister(key); |
| 3096 | Representation key_representation = |
| 3097 | instr->hydrogen()->key()->representation(); |
| 3098 | if (ExternalArrayOpRequiresTemp(key_representation, elements_kind)) { |
| 3099 | __ SmiToInteger64(key_reg, key_reg); |
| 3100 | } else if (instr->hydrogen()->IsDehoisted()) { |
| 3101 | // Sign extend key because it could be a 32 bit negative value |
| 3102 | // and the dehoisted address computation happens in 64 bits |
| 3103 | __ movsxlq(key_reg, key_reg); |
| 3104 | } |
| 3105 | } |
| 3106 | Operand operand(BuildFastArrayOperand( |
| 3107 | instr->elements(), |
| 3108 | key, |
| 3109 | instr->hydrogen()->key()->representation(), |
| 3110 | elements_kind, |
| 3111 | instr->base_offset())); |
| 3112 | |
| 3113 | if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || |
| 3114 | elements_kind == FLOAT32_ELEMENTS) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3115 | XMMRegister result(ToDoubleRegister(instr->result())); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3116 | __ movss(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3117 | __ cvtss2sd(result, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3118 | } else if (elements_kind == EXTERNAL_FLOAT64_ELEMENTS || |
| 3119 | elements_kind == FLOAT64_ELEMENTS) { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3120 | __ movsd(ToDoubleRegister(instr->result()), operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3121 | } else { |
| 3122 | Register result(ToRegister(instr->result())); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3123 | switch (elements_kind) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3124 | case EXTERNAL_INT8_ELEMENTS: |
| 3125 | case INT8_ELEMENTS: |
| 3126 | __ movsxbl(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3127 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3128 | case EXTERNAL_UINT8_ELEMENTS: |
| 3129 | case EXTERNAL_UINT8_CLAMPED_ELEMENTS: |
| 3130 | case UINT8_ELEMENTS: |
| 3131 | case UINT8_CLAMPED_ELEMENTS: |
| 3132 | __ movzxbl(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3133 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3134 | case EXTERNAL_INT16_ELEMENTS: |
| 3135 | case INT16_ELEMENTS: |
| 3136 | __ movsxwl(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3137 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3138 | case EXTERNAL_UINT16_ELEMENTS: |
| 3139 | case UINT16_ELEMENTS: |
| 3140 | __ movzxwl(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3141 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3142 | case EXTERNAL_INT32_ELEMENTS: |
| 3143 | case INT32_ELEMENTS: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3144 | __ movl(result, operand); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3145 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3146 | case EXTERNAL_UINT32_ELEMENTS: |
| 3147 | case UINT32_ELEMENTS: |
| 3148 | __ movl(result, operand); |
| 3149 | if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) { |
| 3150 | __ testl(result, result); |
| 3151 | DeoptimizeIf(negative, instr, "negative value"); |
| 3152 | } |
| 3153 | break; |
| 3154 | case EXTERNAL_FLOAT32_ELEMENTS: |
| 3155 | case EXTERNAL_FLOAT64_ELEMENTS: |
| 3156 | case FLOAT32_ELEMENTS: |
| 3157 | case FLOAT64_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 3158 | case FAST_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3159 | case FAST_SMI_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 3160 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3161 | case FAST_HOLEY_ELEMENTS: |
| 3162 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3163 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 3164 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3165 | case SLOPPY_ARGUMENTS_ELEMENTS: |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 3166 | UNREACHABLE(); |
| 3167 | break; |
| 3168 | } |
| 3169 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3170 | } |
| 3171 | |
| 3172 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3173 | void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) { |
| 3174 | XMMRegister result(ToDoubleRegister(instr->result())); |
| 3175 | LOperand* key = instr->key(); |
| 3176 | if (kPointerSize == kInt32Size && !key->IsConstantOperand() && |
| 3177 | instr->hydrogen()->IsDehoisted()) { |
| 3178 | // Sign extend key because it could be a 32 bit negative value |
| 3179 | // and the dehoisted address computation happens in 64 bits |
| 3180 | __ movsxlq(ToRegister(key), ToRegister(key)); |
| 3181 | } |
| 3182 | if (instr->hydrogen()->RequiresHoleCheck()) { |
| 3183 | Operand hole_check_operand = BuildFastArrayOperand( |
| 3184 | instr->elements(), |
| 3185 | key, |
| 3186 | instr->hydrogen()->key()->representation(), |
| 3187 | FAST_DOUBLE_ELEMENTS, |
| 3188 | instr->base_offset() + sizeof(kHoleNanLower32)); |
| 3189 | __ cmpl(hole_check_operand, Immediate(kHoleNanUpper32)); |
| 3190 | DeoptimizeIf(equal, instr, "hole"); |
| 3191 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3192 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3193 | Operand double_load_operand = BuildFastArrayOperand( |
| 3194 | instr->elements(), |
| 3195 | key, |
| 3196 | instr->hydrogen()->key()->representation(), |
| 3197 | FAST_DOUBLE_ELEMENTS, |
| 3198 | instr->base_offset()); |
| 3199 | __ movsd(result, double_load_operand); |
| 3200 | } |
| 3201 | |
| 3202 | |
| 3203 | void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) { |
| 3204 | HLoadKeyed* hinstr = instr->hydrogen(); |
| 3205 | Register result = ToRegister(instr->result()); |
| 3206 | LOperand* key = instr->key(); |
| 3207 | bool requires_hole_check = hinstr->RequiresHoleCheck(); |
| 3208 | Representation representation = hinstr->representation(); |
| 3209 | int offset = instr->base_offset(); |
| 3210 | |
| 3211 | if (kPointerSize == kInt32Size && !key->IsConstantOperand() && |
| 3212 | instr->hydrogen()->IsDehoisted()) { |
| 3213 | // Sign extend key because it could be a 32 bit negative value |
| 3214 | // and the dehoisted address computation happens in 64 bits |
| 3215 | __ movsxlq(ToRegister(key), ToRegister(key)); |
| 3216 | } |
| 3217 | if (representation.IsInteger32() && SmiValuesAre32Bits() && |
| 3218 | hinstr->elements_kind() == FAST_SMI_ELEMENTS) { |
| 3219 | DCHECK(!requires_hole_check); |
| 3220 | if (FLAG_debug_code) { |
| 3221 | Register scratch = kScratchRegister; |
| 3222 | __ Load(scratch, |
| 3223 | BuildFastArrayOperand(instr->elements(), |
| 3224 | key, |
| 3225 | instr->hydrogen()->key()->representation(), |
| 3226 | FAST_ELEMENTS, |
| 3227 | offset), |
| 3228 | Representation::Smi()); |
| 3229 | __ AssertSmi(scratch); |
| 3230 | } |
| 3231 | // Read int value directly from upper half of the smi. |
| 3232 | STATIC_ASSERT(kSmiTag == 0); |
| 3233 | DCHECK(kSmiTagSize + kSmiShiftSize == 32); |
| 3234 | offset += kPointerSize / 2; |
| 3235 | } |
| 3236 | |
| 3237 | __ Load(result, |
| 3238 | BuildFastArrayOperand(instr->elements(), key, |
| 3239 | instr->hydrogen()->key()->representation(), |
| 3240 | FAST_ELEMENTS, offset), |
| 3241 | representation); |
| 3242 | |
| 3243 | // Check for the hole value. |
| 3244 | if (requires_hole_check) { |
| 3245 | if (IsFastSmiElementsKind(hinstr->elements_kind())) { |
| 3246 | Condition smi = __ CheckSmi(result); |
| 3247 | DeoptimizeIf(NegateCondition(smi), instr, "not a Smi"); |
| 3248 | } else { |
| 3249 | __ CompareRoot(result, Heap::kTheHoleValueRootIndex); |
| 3250 | DeoptimizeIf(equal, instr, "hole"); |
| 3251 | } |
| 3252 | } |
| 3253 | } |
| 3254 | |
| 3255 | |
| 3256 | void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) { |
| 3257 | if (instr->is_typed_elements()) { |
| 3258 | DoLoadKeyedExternalArray(instr); |
| 3259 | } else if (instr->hydrogen()->representation().IsDouble()) { |
| 3260 | DoLoadKeyedFixedDoubleArray(instr); |
| 3261 | } else { |
| 3262 | DoLoadKeyedFixedArray(instr); |
| 3263 | } |
| 3264 | } |
| 3265 | |
| 3266 | |
| 3267 | Operand LCodeGen::BuildFastArrayOperand( |
| 3268 | LOperand* elements_pointer, |
| 3269 | LOperand* key, |
| 3270 | Representation key_representation, |
| 3271 | ElementsKind elements_kind, |
| 3272 | uint32_t offset) { |
| 3273 | Register elements_pointer_reg = ToRegister(elements_pointer); |
| 3274 | int shift_size = ElementsKindToShiftSize(elements_kind); |
| 3275 | if (key->IsConstantOperand()) { |
| 3276 | int32_t constant_value = ToInteger32(LConstantOperand::cast(key)); |
| 3277 | if (constant_value & 0xF0000000) { |
| 3278 | Abort(kArrayIndexConstantValueTooBig); |
| 3279 | } |
| 3280 | return Operand(elements_pointer_reg, |
| 3281 | (constant_value << shift_size) + offset); |
| 3282 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3283 | // Guaranteed by ArrayInstructionInterface::KeyedAccessIndexRequirement(). |
| 3284 | DCHECK(key_representation.IsInteger32()); |
| 3285 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3286 | ScaleFactor scale_factor = static_cast<ScaleFactor>(shift_size); |
| 3287 | return Operand(elements_pointer_reg, |
| 3288 | ToRegister(key), |
| 3289 | scale_factor, |
| 3290 | offset); |
| 3291 | } |
| 3292 | } |
| 3293 | |
| 3294 | |
| 3295 | void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) { |
| 3296 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 3297 | DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister())); |
| 3298 | DCHECK(ToRegister(instr->key()).is(LoadDescriptor::NameRegister())); |
| 3299 | |
| 3300 | if (FLAG_vector_ics) { |
| 3301 | EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr); |
| 3302 | } |
| 3303 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3304 | Handle<Code> ic = CodeFactory::KeyedLoadICInOptimizedCode(isolate()).code(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3305 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3306 | } |
| 3307 | |
| 3308 | |
| 3309 | void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3310 | Register result = ToRegister(instr->result()); |
| 3311 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3312 | if (instr->hydrogen()->from_inlined()) { |
| 3313 | __ leap(result, Operand(rsp, -kFPOnStackSize + -kPCOnStackSize)); |
| 3314 | } else { |
| 3315 | // Check for arguments adapter frame. |
| 3316 | Label done, adapted; |
| 3317 | __ movp(result, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
| 3318 | __ Cmp(Operand(result, StandardFrameConstants::kContextOffset), |
| 3319 | Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
| 3320 | __ j(equal, &adapted, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3321 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3322 | // No arguments adaptor frame. |
| 3323 | __ movp(result, rbp); |
| 3324 | __ jmp(&done, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3325 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3326 | // Arguments adaptor frame present. |
| 3327 | __ bind(&adapted); |
| 3328 | __ movp(result, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3329 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3330 | // Result is the frame pointer for the frame if not adapted and for the real |
| 3331 | // frame below the adaptor frame if adapted. |
| 3332 | __ bind(&done); |
| 3333 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3334 | } |
| 3335 | |
| 3336 | |
| 3337 | void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3338 | Register result = ToRegister(instr->result()); |
| 3339 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3340 | Label done; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3341 | |
| 3342 | // If no arguments adaptor frame the number of arguments is fixed. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3343 | if (instr->elements()->IsRegister()) { |
| 3344 | __ cmpp(rbp, ToRegister(instr->elements())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3345 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3346 | __ cmpp(rbp, ToOperand(instr->elements())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3347 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 3348 | __ movl(result, Immediate(scope()->num_parameters())); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3349 | __ j(equal, &done, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3350 | |
| 3351 | // Arguments adaptor frame present. Get argument length from there. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3352 | __ movp(result, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 3353 | __ SmiToInteger32(result, |
| 3354 | Operand(result, |
| 3355 | ArgumentsAdaptorFrameConstants::kLengthOffset)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3356 | |
| 3357 | // Argument length is in result register. |
| 3358 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3359 | } |
| 3360 | |
| 3361 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3362 | void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3363 | Register receiver = ToRegister(instr->receiver()); |
| 3364 | Register function = ToRegister(instr->function()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3365 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3366 | // If the receiver is null or undefined, we have to pass the global |
| 3367 | // object as a receiver to normal functions. Values have to be |
| 3368 | // passed unchanged to builtins and strict-mode functions. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3369 | Label global_object, receiver_ok; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3370 | Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3371 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3372 | if (!instr->hydrogen()->known_function()) { |
| 3373 | // Do not transform the receiver to object for strict mode |
| 3374 | // functions. |
| 3375 | __ movp(kScratchRegister, |
| 3376 | FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); |
| 3377 | __ testb(FieldOperand(kScratchRegister, |
| 3378 | SharedFunctionInfo::kStrictModeByteOffset), |
| 3379 | Immediate(1 << SharedFunctionInfo::kStrictModeBitWithinByte)); |
| 3380 | __ j(not_equal, &receiver_ok, dist); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3381 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3382 | // Do not transform the receiver to object for builtins. |
| 3383 | __ testb(FieldOperand(kScratchRegister, |
| 3384 | SharedFunctionInfo::kNativeByteOffset), |
| 3385 | Immediate(1 << SharedFunctionInfo::kNativeBitWithinByte)); |
| 3386 | __ j(not_equal, &receiver_ok, dist); |
| 3387 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3388 | |
| 3389 | // Normal function. Replace undefined or null with global receiver. |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3390 | __ CompareRoot(receiver, Heap::kNullValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3391 | __ j(equal, &global_object, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3392 | __ CompareRoot(receiver, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3393 | __ j(equal, &global_object, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3394 | |
| 3395 | // The receiver should be a JS object. |
| 3396 | Condition is_smi = __ CheckSmi(receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3397 | DeoptimizeIf(is_smi, instr, "Smi"); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3398 | __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, kScratchRegister); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3399 | DeoptimizeIf(below, instr, "not a JavaScript object"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3400 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3401 | __ jmp(&receiver_ok, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3402 | __ bind(&global_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3403 | __ movp(receiver, FieldOperand(function, JSFunction::kContextOffset)); |
| 3404 | __ movp(receiver, |
| 3405 | Operand(receiver, |
| 3406 | Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 3407 | __ movp(receiver, FieldOperand(receiver, GlobalObject::kGlobalProxyOffset)); |
| 3408 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3409 | __ bind(&receiver_ok); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3410 | } |
| 3411 | |
| 3412 | |
| 3413 | void LCodeGen::DoApplyArguments(LApplyArguments* instr) { |
| 3414 | Register receiver = ToRegister(instr->receiver()); |
| 3415 | Register function = ToRegister(instr->function()); |
| 3416 | Register length = ToRegister(instr->length()); |
| 3417 | Register elements = ToRegister(instr->elements()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3418 | DCHECK(receiver.is(rax)); // Used for parameter count. |
| 3419 | DCHECK(function.is(rdi)); // Required by InvokeFunction. |
| 3420 | DCHECK(ToRegister(instr->result()).is(rax)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3421 | |
| 3422 | // Copy the arguments to this function possibly from the |
| 3423 | // adaptor frame below it. |
| 3424 | const uint32_t kArgumentsLimit = 1 * KB; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3425 | __ cmpp(length, Immediate(kArgumentsLimit)); |
| 3426 | DeoptimizeIf(above, instr, "too many arguments"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3427 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3428 | __ Push(receiver); |
| 3429 | __ movp(receiver, length); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3430 | |
| 3431 | // Loop through the arguments pushing them onto the execution |
| 3432 | // stack. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3433 | Label invoke, loop; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3434 | // length is a small non-negative integer, due to the test above. |
| 3435 | __ testl(length, length); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3436 | __ j(zero, &invoke, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3437 | __ bind(&loop); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3438 | StackArgumentsAccessor args(elements, length, |
| 3439 | ARGUMENTS_DONT_CONTAIN_RECEIVER); |
| 3440 | __ Push(args.GetArgumentOperand(0)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3441 | __ decl(length); |
| 3442 | __ j(not_zero, &loop); |
| 3443 | |
| 3444 | // Invoke the function. |
| 3445 | __ bind(&invoke); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3446 | DCHECK(instr->HasPointerMap()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3447 | LPointerMap* pointers = instr->pointer_map(); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 3448 | SafepointGenerator safepoint_generator( |
| 3449 | this, pointers, Safepoint::kLazyDeopt); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3450 | ParameterCount actual(rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3451 | __ InvokeFunction(function, actual, CALL_FUNCTION, safepoint_generator); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3452 | } |
| 3453 | |
| 3454 | |
| 3455 | void LCodeGen::DoPushArgument(LPushArgument* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3456 | LOperand* argument = instr->value(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3457 | EmitPushTaggedOperand(argument); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3458 | } |
| 3459 | |
| 3460 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3461 | void LCodeGen::DoDrop(LDrop* instr) { |
| 3462 | __ Drop(instr->count()); |
| 3463 | } |
| 3464 | |
| 3465 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3466 | void LCodeGen::DoThisFunction(LThisFunction* instr) { |
| 3467 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3468 | __ movp(result, Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 3469 | } |
| 3470 | |
| 3471 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3472 | void LCodeGen::DoContext(LContext* instr) { |
| 3473 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3474 | if (info()->IsOptimizing()) { |
| 3475 | __ movp(result, Operand(rbp, StandardFrameConstants::kContextOffset)); |
| 3476 | } else { |
| 3477 | // If there is no frame, the context must be in rsi. |
| 3478 | DCHECK(result.is(rsi)); |
| 3479 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3480 | } |
| 3481 | |
| 3482 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3483 | void LCodeGen::DoDeclareGlobals(LDeclareGlobals* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3484 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 3485 | __ Push(rsi); // The context is the first argument. |
| 3486 | __ Push(instr->hydrogen()->pairs()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3487 | __ Push(Smi::FromInt(instr->hydrogen()->flags())); |
| 3488 | CallRuntime(Runtime::kDeclareGlobals, 3, instr); |
| 3489 | } |
| 3490 | |
| 3491 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3492 | void LCodeGen::CallKnownFunction(Handle<JSFunction> function, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3493 | int formal_parameter_count, |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3494 | int arity, |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3495 | LInstruction* instr, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3496 | RDIState rdi_state) { |
| 3497 | bool dont_adapt_arguments = |
| 3498 | formal_parameter_count == SharedFunctionInfo::kDontAdaptArgumentsSentinel; |
| 3499 | bool can_invoke_directly = |
| 3500 | dont_adapt_arguments || formal_parameter_count == arity; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3501 | |
| 3502 | LPointerMap* pointers = instr->pointer_map(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 3503 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3504 | if (can_invoke_directly) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3505 | if (rdi_state == RDI_UNINITIALIZED) { |
| 3506 | __ Move(rdi, function); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3507 | } |
| 3508 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3509 | // Change context. |
| 3510 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 3511 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3512 | // Set rax to arguments count if adaption is not needed. Assumes that rax |
| 3513 | // is available to write to at this point. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3514 | if (dont_adapt_arguments) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3515 | __ Set(rax, arity); |
| 3516 | } |
| 3517 | |
| 3518 | // Invoke function. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3519 | if (function.is_identical_to(info()->closure())) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3520 | __ CallSelf(); |
| 3521 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3522 | __ Call(FieldOperand(rdi, JSFunction::kCodeEntryOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3523 | } |
| 3524 | |
| 3525 | // Set up deoptimization. |
| 3526 | RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT, 0); |
| 3527 | } else { |
| 3528 | // We need to adapt arguments. |
| 3529 | SafepointGenerator generator( |
| 3530 | this, pointers, Safepoint::kLazyDeopt); |
| 3531 | ParameterCount count(arity); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3532 | ParameterCount expected(formal_parameter_count); |
| 3533 | __ InvokeFunction(function, expected, count, CALL_FUNCTION, generator); |
| 3534 | } |
| 3535 | } |
| 3536 | |
| 3537 | |
| 3538 | void LCodeGen::DoTailCallThroughMegamorphicCache( |
| 3539 | LTailCallThroughMegamorphicCache* instr) { |
| 3540 | Register receiver = ToRegister(instr->receiver()); |
| 3541 | Register name = ToRegister(instr->name()); |
| 3542 | DCHECK(receiver.is(LoadDescriptor::ReceiverRegister())); |
| 3543 | DCHECK(name.is(LoadDescriptor::NameRegister())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3544 | Register scratch = rdi; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3545 | DCHECK(!scratch.is(receiver) && !scratch.is(name)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3546 | DCHECK(!FLAG_vector_ics || |
| 3547 | !AreAliased(ToRegister(instr->slot()), ToRegister(instr->vector()), |
| 3548 | scratch)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3549 | |
| 3550 | // Important for the tail-call. |
| 3551 | bool must_teardown_frame = NeedsEagerFrame(); |
| 3552 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3553 | if (!instr->hydrogen()->is_just_miss()) { |
| 3554 | // The probe will tail call to a handler if found. |
| 3555 | DCHECK(!instr->hydrogen()->is_keyed_load()); |
| 3556 | isolate()->stub_cache()->GenerateProbe( |
| 3557 | masm(), Code::LOAD_IC, instr->hydrogen()->flags(), must_teardown_frame, |
| 3558 | receiver, name, scratch, no_reg); |
| 3559 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3560 | |
| 3561 | // Tail call to miss if we ended up here. |
| 3562 | if (must_teardown_frame) __ leave(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3563 | if (instr->hydrogen()->is_keyed_load()) { |
| 3564 | KeyedLoadIC::GenerateMiss(masm()); |
| 3565 | } else { |
| 3566 | LoadIC::GenerateMiss(masm()); |
| 3567 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3568 | } |
| 3569 | |
| 3570 | |
| 3571 | void LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) { |
| 3572 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 3573 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3574 | if (instr->hydrogen()->IsTailCall()) { |
| 3575 | if (NeedsEagerFrame()) __ leave(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3576 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3577 | if (instr->target()->IsConstantOperand()) { |
| 3578 | LConstantOperand* target = LConstantOperand::cast(instr->target()); |
| 3579 | Handle<Code> code = Handle<Code>::cast(ToHandle(target)); |
| 3580 | __ jmp(code, RelocInfo::CODE_TARGET); |
| 3581 | } else { |
| 3582 | DCHECK(instr->target()->IsRegister()); |
| 3583 | Register target = ToRegister(instr->target()); |
| 3584 | __ addp(target, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 3585 | __ jmp(target); |
| 3586 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3587 | } else { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3588 | LPointerMap* pointers = instr->pointer_map(); |
| 3589 | SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); |
| 3590 | |
| 3591 | if (instr->target()->IsConstantOperand()) { |
| 3592 | LConstantOperand* target = LConstantOperand::cast(instr->target()); |
| 3593 | Handle<Code> code = Handle<Code>::cast(ToHandle(target)); |
| 3594 | generator.BeforeCall(__ CallSize(code)); |
| 3595 | __ call(code, RelocInfo::CODE_TARGET); |
| 3596 | } else { |
| 3597 | DCHECK(instr->target()->IsRegister()); |
| 3598 | Register target = ToRegister(instr->target()); |
| 3599 | generator.BeforeCall(__ CallSize(target)); |
| 3600 | __ addp(target, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 3601 | __ call(target); |
| 3602 | } |
| 3603 | generator.AfterCall(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3604 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3605 | } |
| 3606 | |
| 3607 | |
| 3608 | void LCodeGen::DoCallJSFunction(LCallJSFunction* instr) { |
| 3609 | DCHECK(ToRegister(instr->function()).is(rdi)); |
| 3610 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 3611 | |
| 3612 | if (instr->hydrogen()->pass_argument_count()) { |
| 3613 | __ Set(rax, instr->arity()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3614 | } |
Ben Murdoch | 85b7179 | 2012-04-11 18:30:58 +0100 | [diff] [blame] | 3615 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3616 | // Change context. |
| 3617 | __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); |
| 3618 | |
| 3619 | LPointerMap* pointers = instr->pointer_map(); |
| 3620 | SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); |
| 3621 | |
| 3622 | bool is_self_call = false; |
| 3623 | if (instr->hydrogen()->function()->IsConstant()) { |
| 3624 | Handle<JSFunction> jsfun = Handle<JSFunction>::null(); |
| 3625 | HConstant* fun_const = HConstant::cast(instr->hydrogen()->function()); |
| 3626 | jsfun = Handle<JSFunction>::cast(fun_const->handle(isolate())); |
| 3627 | is_self_call = jsfun.is_identical_to(info()->closure()); |
| 3628 | } |
| 3629 | |
| 3630 | if (is_self_call) { |
| 3631 | __ CallSelf(); |
| 3632 | } else { |
| 3633 | Operand target = FieldOperand(rdi, JSFunction::kCodeEntryOffset); |
| 3634 | generator.BeforeCall(__ CallSize(target)); |
| 3635 | __ Call(target); |
| 3636 | } |
| 3637 | generator.AfterCall(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3638 | } |
| 3639 | |
| 3640 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3641 | void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) { |
| 3642 | Register input_reg = ToRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3643 | __ CompareRoot(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 3644 | Heap::kHeapNumberMapRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3645 | DeoptimizeIf(not_equal, instr, "not a heap number"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3646 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3647 | Label slow, allocated, done; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3648 | Register tmp = input_reg.is(rax) ? rcx : rax; |
| 3649 | Register tmp2 = tmp.is(rcx) ? rdx : input_reg.is(rcx) ? rdx : rcx; |
| 3650 | |
| 3651 | // Preserve the value of all registers. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 3652 | PushSafepointRegistersScope scope(this); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3653 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3654 | __ movl(tmp, FieldOperand(input_reg, HeapNumber::kExponentOffset)); |
| 3655 | // Check the sign of the argument. If the argument is positive, just |
| 3656 | // return it. We do not need to patch the stack since |input| and |
| 3657 | // |result| are the same register and |input| will be restored |
| 3658 | // unchanged by popping safepoint registers. |
| 3659 | __ testl(tmp, Immediate(HeapNumber::kSignMask)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3660 | __ j(zero, &done); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3661 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3662 | __ AllocateHeapNumber(tmp, tmp2, &slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3663 | __ jmp(&allocated, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3664 | |
| 3665 | // Slow case: Call the runtime system to do the number allocation. |
| 3666 | __ bind(&slow); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3667 | CallRuntimeFromDeferred( |
| 3668 | Runtime::kAllocateHeapNumber, 0, instr, instr->context()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3669 | // Set the pointer to the new heap number in tmp. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3670 | if (!tmp.is(rax)) __ movp(tmp, rax); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3671 | // Restore input_reg after call to runtime. |
| 3672 | __ LoadFromSafepointRegisterSlot(input_reg, input_reg); |
| 3673 | |
| 3674 | __ bind(&allocated); |
| 3675 | __ movq(tmp2, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3676 | __ shlq(tmp2, Immediate(1)); |
| 3677 | __ shrq(tmp2, Immediate(1)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3678 | __ movq(FieldOperand(tmp, HeapNumber::kValueOffset), tmp2); |
| 3679 | __ StoreToSafepointRegisterSlot(input_reg, tmp); |
| 3680 | |
| 3681 | __ bind(&done); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3682 | } |
| 3683 | |
| 3684 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3685 | void LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) { |
| 3686 | Register input_reg = ToRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3687 | __ testl(input_reg, input_reg); |
| 3688 | Label is_positive; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3689 | __ j(not_sign, &is_positive, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3690 | __ negl(input_reg); // Sets flags. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3691 | DeoptimizeIf(negative, instr, "overflow"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3692 | __ bind(&is_positive); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3693 | } |
| 3694 | |
| 3695 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3696 | void LCodeGen::EmitSmiMathAbs(LMathAbs* instr) { |
| 3697 | Register input_reg = ToRegister(instr->value()); |
| 3698 | __ testp(input_reg, input_reg); |
| 3699 | Label is_positive; |
| 3700 | __ j(not_sign, &is_positive, Label::kNear); |
| 3701 | __ negp(input_reg); // Sets flags. |
| 3702 | DeoptimizeIf(negative, instr, "overflow"); |
| 3703 | __ bind(&is_positive); |
| 3704 | } |
| 3705 | |
| 3706 | |
| 3707 | void LCodeGen::DoMathAbs(LMathAbs* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3708 | // Class for deferred case. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3709 | class DeferredMathAbsTaggedHeapNumber FINAL : public LDeferredCode { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3710 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3711 | DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen, LMathAbs* instr) |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3712 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3713 | void Generate() OVERRIDE { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3714 | codegen()->DoDeferredMathAbsTaggedHeapNumber(instr_); |
| 3715 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 3716 | LInstruction* instr() OVERRIDE { return instr_; } |
| 3717 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3718 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3719 | LMathAbs* instr_; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3720 | }; |
| 3721 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3722 | DCHECK(instr->value()->Equals(instr->result())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3723 | Representation r = instr->hydrogen()->value()->representation(); |
| 3724 | |
| 3725 | if (r.IsDouble()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3726 | XMMRegister scratch = double_scratch0(); |
| 3727 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3728 | __ xorps(scratch, scratch); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3729 | __ subsd(scratch, input_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3730 | __ andps(input_reg, scratch); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3731 | } else if (r.IsInteger32()) { |
| 3732 | EmitIntegerMathAbs(instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3733 | } else if (r.IsSmi()) { |
| 3734 | EmitSmiMathAbs(instr); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3735 | } else { // Tagged case. |
| 3736 | DeferredMathAbsTaggedHeapNumber* deferred = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3737 | new(zone()) DeferredMathAbsTaggedHeapNumber(this, instr); |
| 3738 | Register input_reg = ToRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3739 | // Smi check. |
| 3740 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3741 | EmitSmiMathAbs(instr); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3742 | __ bind(deferred->exit()); |
| 3743 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3744 | } |
| 3745 | |
| 3746 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3747 | void LCodeGen::DoMathFloor(LMathFloor* instr) { |
| 3748 | XMMRegister xmm_scratch = double_scratch0(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3749 | Register output_reg = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3750 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3751 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3752 | if (CpuFeatures::IsSupported(SSE4_1)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3753 | CpuFeatureScope scope(masm(), SSE4_1); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3754 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
| 3755 | // Deoptimize if minus zero. |
| 3756 | __ movq(output_reg, input_reg); |
| 3757 | __ subq(output_reg, Immediate(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3758 | DeoptimizeIf(overflow, instr, "minus zero"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3759 | } |
| 3760 | __ roundsd(xmm_scratch, input_reg, Assembler::kRoundDown); |
| 3761 | __ cvttsd2si(output_reg, xmm_scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3762 | __ cmpl(output_reg, Immediate(0x1)); |
| 3763 | DeoptimizeIf(overflow, instr, "overflow"); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3764 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3765 | Label negative_sign, done; |
| 3766 | // Deoptimize on unordered. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3767 | __ xorps(xmm_scratch, xmm_scratch); // Zero the register. |
| 3768 | __ ucomisd(input_reg, xmm_scratch); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3769 | DeoptimizeIf(parity_even, instr, "NaN"); |
| 3770 | __ j(below, &negative_sign, Label::kNear); |
| 3771 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3772 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3773 | // Check for negative zero. |
| 3774 | Label positive_sign; |
| 3775 | __ j(above, &positive_sign, Label::kNear); |
| 3776 | __ movmskpd(output_reg, input_reg); |
| 3777 | __ testq(output_reg, Immediate(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3778 | DeoptimizeIf(not_zero, instr, "minus zero"); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 3779 | __ Set(output_reg, 0); |
| 3780 | __ jmp(&done); |
| 3781 | __ bind(&positive_sign); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3782 | } |
| 3783 | |
| 3784 | // Use truncating instruction (OK because input is positive). |
| 3785 | __ cvttsd2si(output_reg, input_reg); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3786 | // Overflow is signalled with minint. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3787 | __ cmpl(output_reg, Immediate(0x1)); |
| 3788 | DeoptimizeIf(overflow, instr, "overflow"); |
| 3789 | __ jmp(&done, Label::kNear); |
| 3790 | |
| 3791 | // Non-zero negative reaches here. |
| 3792 | __ bind(&negative_sign); |
| 3793 | // Truncate, then compare and compensate. |
| 3794 | __ cvttsd2si(output_reg, input_reg); |
| 3795 | __ Cvtlsi2sd(xmm_scratch, output_reg); |
| 3796 | __ ucomisd(input_reg, xmm_scratch); |
| 3797 | __ j(equal, &done, Label::kNear); |
| 3798 | __ subl(output_reg, Immediate(1)); |
| 3799 | DeoptimizeIf(overflow, instr, "overflow"); |
| 3800 | |
| 3801 | __ bind(&done); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3802 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3803 | } |
| 3804 | |
| 3805 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3806 | void LCodeGen::DoMathRound(LMathRound* instr) { |
| 3807 | const XMMRegister xmm_scratch = double_scratch0(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3808 | Register output_reg = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3809 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 3810 | XMMRegister input_temp = ToDoubleRegister(instr->temp()); |
| 3811 | static int64_t one_half = V8_INT64_C(0x3FE0000000000000); // 0.5 |
| 3812 | static int64_t minus_one_half = V8_INT64_C(0xBFE0000000000000); // -0.5 |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3813 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3814 | Label done, round_to_zero, below_one_half; |
| 3815 | Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear; |
| 3816 | __ movq(kScratchRegister, one_half); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3817 | __ movq(xmm_scratch, kScratchRegister); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3818 | __ ucomisd(xmm_scratch, input_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3819 | __ j(above, &below_one_half, Label::kNear); |
| 3820 | |
| 3821 | // CVTTSD2SI rounds towards zero, since 0.5 <= x, we use floor(0.5 + x). |
Ben Murdoch | 692be65 | 2012-01-10 18:47:50 +0000 | [diff] [blame] | 3822 | __ addsd(xmm_scratch, input_reg); |
Ben Murdoch | 692be65 | 2012-01-10 18:47:50 +0000 | [diff] [blame] | 3823 | __ cvttsd2si(output_reg, xmm_scratch); |
Steve Block | 053d10c | 2011-06-13 19:13:29 +0100 | [diff] [blame] | 3824 | // Overflow is signalled with minint. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3825 | __ cmpl(output_reg, Immediate(0x1)); |
| 3826 | DeoptimizeIf(overflow, instr, "overflow"); |
| 3827 | __ jmp(&done, dist); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3828 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3829 | __ bind(&below_one_half); |
| 3830 | __ movq(kScratchRegister, minus_one_half); |
| 3831 | __ movq(xmm_scratch, kScratchRegister); |
| 3832 | __ ucomisd(xmm_scratch, input_reg); |
| 3833 | __ j(below_equal, &round_to_zero, Label::kNear); |
| 3834 | |
| 3835 | // CVTTSD2SI rounds towards zero, we use ceil(x - (-0.5)) and then |
| 3836 | // compare and compensate. |
| 3837 | __ movq(input_temp, input_reg); // Do not alter input_reg. |
| 3838 | __ subsd(input_temp, xmm_scratch); |
| 3839 | __ cvttsd2si(output_reg, input_temp); |
| 3840 | // Catch minint due to overflow, and to prevent overflow when compensating. |
| 3841 | __ cmpl(output_reg, Immediate(0x1)); |
| 3842 | DeoptimizeIf(overflow, instr, "overflow"); |
| 3843 | |
| 3844 | __ Cvtlsi2sd(xmm_scratch, output_reg); |
| 3845 | __ ucomisd(xmm_scratch, input_temp); |
| 3846 | __ j(equal, &done, dist); |
| 3847 | __ subl(output_reg, Immediate(1)); |
| 3848 | // No overflow because we already ruled out minint. |
| 3849 | __ jmp(&done, dist); |
| 3850 | |
| 3851 | __ bind(&round_to_zero); |
| 3852 | // We return 0 for the input range [+0, 0.5[, or [-0.5, 0.5[ if |
| 3853 | // we can ignore the difference between a result of -0 and +0. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3854 | if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3855 | __ movq(output_reg, input_reg); |
| 3856 | __ testq(output_reg, output_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3857 | DeoptimizeIf(negative, instr, "minus zero"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3858 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3859 | __ Set(output_reg, 0); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3860 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3861 | } |
| 3862 | |
| 3863 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3864 | void LCodeGen::DoMathFround(LMathFround* instr) { |
| 3865 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 3866 | XMMRegister output_reg = ToDoubleRegister(instr->result()); |
| 3867 | __ cvtsd2ss(output_reg, input_reg); |
| 3868 | __ cvtss2sd(output_reg, output_reg); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3869 | } |
| 3870 | |
| 3871 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3872 | void LCodeGen::DoMathSqrt(LMathSqrt* instr) { |
| 3873 | XMMRegister output = ToDoubleRegister(instr->result()); |
| 3874 | if (instr->value()->IsDoubleRegister()) { |
| 3875 | XMMRegister input = ToDoubleRegister(instr->value()); |
| 3876 | __ sqrtsd(output, input); |
| 3877 | } else { |
| 3878 | Operand input = ToOperand(instr->value()); |
| 3879 | __ sqrtsd(output, input); |
| 3880 | } |
| 3881 | } |
| 3882 | |
| 3883 | |
| 3884 | void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) { |
| 3885 | XMMRegister xmm_scratch = double_scratch0(); |
| 3886 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 3887 | DCHECK(ToDoubleRegister(instr->result()).is(input_reg)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3888 | |
| 3889 | // Note that according to ECMA-262 15.8.2.13: |
| 3890 | // Math.pow(-Infinity, 0.5) == Infinity |
| 3891 | // Math.sqrt(-Infinity) == NaN |
| 3892 | Label done, sqrt; |
| 3893 | // Check base for -Infinity. According to IEEE-754, double-precision |
| 3894 | // -Infinity has the highest 12 bits set and the lowest 52 bits cleared. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3895 | __ movq(kScratchRegister, V8_INT64_C(0xFFF0000000000000)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3896 | __ movq(xmm_scratch, kScratchRegister); |
| 3897 | __ ucomisd(xmm_scratch, input_reg); |
| 3898 | // Comparing -Infinity with NaN results in "unordered", which sets the |
| 3899 | // zero flag as if both were equal. However, it also sets the carry flag. |
| 3900 | __ j(not_equal, &sqrt, Label::kNear); |
| 3901 | __ j(carry, &sqrt, Label::kNear); |
| 3902 | // If input is -Infinity, return Infinity. |
| 3903 | __ xorps(input_reg, input_reg); |
| 3904 | __ subsd(input_reg, xmm_scratch); |
| 3905 | __ jmp(&done, Label::kNear); |
| 3906 | |
| 3907 | // Square root. |
| 3908 | __ bind(&sqrt); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 3909 | __ xorps(xmm_scratch, xmm_scratch); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3910 | __ addsd(input_reg, xmm_scratch); // Convert -0 to +0. |
| 3911 | __ sqrtsd(input_reg, input_reg); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3912 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 3913 | } |
| 3914 | |
| 3915 | |
| 3916 | void LCodeGen::DoPower(LPower* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 3917 | Representation exponent_type = instr->hydrogen()->right()->representation(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3918 | // Having marked this as a call, we can use any registers. |
| 3919 | // Just make sure that the input/output registers are the expected ones. |
| 3920 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3921 | Register tagged_exponent = MathPowTaggedDescriptor::exponent(); |
| 3922 | DCHECK(!instr->right()->IsRegister() || |
| 3923 | ToRegister(instr->right()).is(tagged_exponent)); |
| 3924 | DCHECK(!instr->right()->IsDoubleRegister() || |
| 3925 | ToDoubleRegister(instr->right()).is(xmm1)); |
| 3926 | DCHECK(ToDoubleRegister(instr->left()).is(xmm2)); |
| 3927 | DCHECK(ToDoubleRegister(instr->result()).is(xmm3)); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 3928 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3929 | if (exponent_type.IsSmi()) { |
| 3930 | MathPowStub stub(isolate(), MathPowStub::TAGGED); |
| 3931 | __ CallStub(&stub); |
| 3932 | } else if (exponent_type.IsTagged()) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3933 | Label no_deopt; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3934 | __ JumpIfSmi(tagged_exponent, &no_deopt, Label::kNear); |
| 3935 | __ CmpObjectType(tagged_exponent, HEAP_NUMBER_TYPE, rcx); |
| 3936 | DeoptimizeIf(not_equal, instr, "not a heap number"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3937 | __ bind(&no_deopt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3938 | MathPowStub stub(isolate(), MathPowStub::TAGGED); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3939 | __ CallStub(&stub); |
| 3940 | } else if (exponent_type.IsInteger32()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3941 | MathPowStub stub(isolate(), MathPowStub::INTEGER); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3942 | __ CallStub(&stub); |
| 3943 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3944 | DCHECK(exponent_type.IsDouble()); |
| 3945 | MathPowStub stub(isolate(), MathPowStub::DOUBLE); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3946 | __ CallStub(&stub); |
Ben Murdoch | 85b7179 | 2012-04-11 18:30:58 +0100 | [diff] [blame] | 3947 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3948 | } |
| 3949 | |
| 3950 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3951 | void LCodeGen::DoMathExp(LMathExp* instr) { |
| 3952 | XMMRegister input = ToDoubleRegister(instr->value()); |
| 3953 | XMMRegister result = ToDoubleRegister(instr->result()); |
| 3954 | XMMRegister temp0 = double_scratch0(); |
| 3955 | Register temp1 = ToRegister(instr->temp1()); |
| 3956 | Register temp2 = ToRegister(instr->temp2()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3957 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3958 | MathExpGenerator::EmitMathExp(masm(), input, result, temp0, temp1, temp2); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 3959 | } |
| 3960 | |
| 3961 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3962 | void LCodeGen::DoMathLog(LMathLog* instr) { |
| 3963 | DCHECK(instr->value()->Equals(instr->result())); |
| 3964 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
| 3965 | XMMRegister xmm_scratch = double_scratch0(); |
| 3966 | Label positive, done, zero; |
| 3967 | __ xorps(xmm_scratch, xmm_scratch); |
| 3968 | __ ucomisd(input_reg, xmm_scratch); |
| 3969 | __ j(above, &positive, Label::kNear); |
| 3970 | __ j(not_carry, &zero, Label::kNear); |
| 3971 | ExternalReference nan = |
| 3972 | ExternalReference::address_of_canonical_non_hole_nan(); |
| 3973 | Operand nan_operand = masm()->ExternalOperand(nan); |
| 3974 | __ movsd(input_reg, nan_operand); |
| 3975 | __ jmp(&done, Label::kNear); |
| 3976 | __ bind(&zero); |
| 3977 | ExternalReference ninf = |
| 3978 | ExternalReference::address_of_negative_infinity(); |
| 3979 | Operand ninf_operand = masm()->ExternalOperand(ninf); |
| 3980 | __ movsd(input_reg, ninf_operand); |
| 3981 | __ jmp(&done, Label::kNear); |
| 3982 | __ bind(&positive); |
| 3983 | __ fldln2(); |
| 3984 | __ subp(rsp, Immediate(kDoubleSize)); |
| 3985 | __ movsd(Operand(rsp, 0), input_reg); |
| 3986 | __ fld_d(Operand(rsp, 0)); |
| 3987 | __ fyl2x(); |
| 3988 | __ fstp_d(Operand(rsp, 0)); |
| 3989 | __ movsd(input_reg, Operand(rsp, 0)); |
| 3990 | __ addp(rsp, Immediate(kDoubleSize)); |
| 3991 | __ bind(&done); |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 3992 | } |
| 3993 | |
| 3994 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 3995 | void LCodeGen::DoMathClz32(LMathClz32* instr) { |
| 3996 | Register input = ToRegister(instr->value()); |
| 3997 | Register result = ToRegister(instr->result()); |
| 3998 | Label not_zero_input; |
| 3999 | __ bsrl(result, input); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4000 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4001 | __ j(not_zero, ¬_zero_input); |
| 4002 | __ Set(result, 63); // 63^31 == 32 |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4003 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4004 | __ bind(¬_zero_input); |
| 4005 | __ xorl(result, Immediate(31)); // for x in [0..31], 31^x == 31-x. |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4006 | } |
| 4007 | |
| 4008 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4009 | void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4010 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4011 | DCHECK(ToRegister(instr->function()).is(rdi)); |
| 4012 | DCHECK(instr->HasPointerMap()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4013 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4014 | Handle<JSFunction> known_function = instr->hydrogen()->known_function(); |
| 4015 | if (known_function.is_null()) { |
| 4016 | LPointerMap* pointers = instr->pointer_map(); |
| 4017 | SafepointGenerator generator(this, pointers, Safepoint::kLazyDeopt); |
| 4018 | ParameterCount count(instr->arity()); |
| 4019 | __ InvokeFunction(rdi, count, CALL_FUNCTION, generator); |
| 4020 | } else { |
| 4021 | CallKnownFunction(known_function, |
| 4022 | instr->hydrogen()->formal_parameter_count(), |
| 4023 | instr->arity(), |
| 4024 | instr, |
| 4025 | RDI_CONTAINS_TARGET); |
| 4026 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4027 | } |
| 4028 | |
| 4029 | |
| 4030 | void LCodeGen::DoCallFunction(LCallFunction* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4031 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4032 | DCHECK(ToRegister(instr->function()).is(rdi)); |
| 4033 | DCHECK(ToRegister(instr->result()).is(rax)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4034 | |
| 4035 | int arity = instr->arity(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4036 | CallFunctionStub stub(isolate(), arity, instr->hydrogen()->function_flags()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4037 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4038 | } |
| 4039 | |
| 4040 | |
| 4041 | void LCodeGen::DoCallNew(LCallNew* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4042 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4043 | DCHECK(ToRegister(instr->constructor()).is(rdi)); |
| 4044 | DCHECK(ToRegister(instr->result()).is(rax)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4045 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4046 | __ Set(rax, instr->arity()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4047 | // No cell in ebx for construct type feedback in optimized code |
| 4048 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 4049 | CallConstructStub stub(isolate(), NO_CALL_CONSTRUCTOR_FLAGS); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4050 | CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4051 | } |
| 4052 | |
| 4053 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4054 | void LCodeGen::DoCallNewArray(LCallNewArray* instr) { |
| 4055 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4056 | DCHECK(ToRegister(instr->constructor()).is(rdi)); |
| 4057 | DCHECK(ToRegister(instr->result()).is(rax)); |
| 4058 | |
| 4059 | __ Set(rax, instr->arity()); |
| 4060 | __ LoadRoot(rbx, Heap::kUndefinedValueRootIndex); |
| 4061 | ElementsKind kind = instr->hydrogen()->elements_kind(); |
| 4062 | AllocationSiteOverrideMode override_mode = |
| 4063 | (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) |
| 4064 | ? DISABLE_ALLOCATION_SITES |
| 4065 | : DONT_OVERRIDE; |
| 4066 | |
| 4067 | if (instr->arity() == 0) { |
| 4068 | ArrayNoArgumentConstructorStub stub(isolate(), kind, override_mode); |
| 4069 | CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); |
| 4070 | } else if (instr->arity() == 1) { |
| 4071 | Label done; |
| 4072 | if (IsFastPackedElementsKind(kind)) { |
| 4073 | Label packed_case; |
| 4074 | // We might need a change here |
| 4075 | // look at the first argument |
| 4076 | __ movp(rcx, Operand(rsp, 0)); |
| 4077 | __ testp(rcx, rcx); |
| 4078 | __ j(zero, &packed_case, Label::kNear); |
| 4079 | |
| 4080 | ElementsKind holey_kind = GetHoleyElementsKind(kind); |
| 4081 | ArraySingleArgumentConstructorStub stub(isolate(), |
| 4082 | holey_kind, |
| 4083 | override_mode); |
| 4084 | CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); |
| 4085 | __ jmp(&done, Label::kNear); |
| 4086 | __ bind(&packed_case); |
| 4087 | } |
| 4088 | |
| 4089 | ArraySingleArgumentConstructorStub stub(isolate(), kind, override_mode); |
| 4090 | CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); |
| 4091 | __ bind(&done); |
| 4092 | } else { |
| 4093 | ArrayNArgumentsConstructorStub stub(isolate(), kind, override_mode); |
| 4094 | CallCode(stub.GetCode(), RelocInfo::CONSTRUCT_CALL, instr); |
| 4095 | } |
| 4096 | } |
| 4097 | |
| 4098 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4099 | void LCodeGen::DoCallRuntime(LCallRuntime* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4100 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4101 | CallRuntime(instr->function(), instr->arity(), instr, instr->save_doubles()); |
| 4102 | } |
| 4103 | |
| 4104 | |
| 4105 | void LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) { |
| 4106 | Register function = ToRegister(instr->function()); |
| 4107 | Register code_object = ToRegister(instr->code_object()); |
| 4108 | __ leap(code_object, FieldOperand(code_object, Code::kHeaderSize)); |
| 4109 | __ movp(FieldOperand(function, JSFunction::kCodeEntryOffset), code_object); |
| 4110 | } |
| 4111 | |
| 4112 | |
| 4113 | void LCodeGen::DoInnerAllocatedObject(LInnerAllocatedObject* instr) { |
| 4114 | Register result = ToRegister(instr->result()); |
| 4115 | Register base = ToRegister(instr->base_object()); |
| 4116 | if (instr->offset()->IsConstantOperand()) { |
| 4117 | LConstantOperand* offset = LConstantOperand::cast(instr->offset()); |
| 4118 | __ leap(result, Operand(base, ToInteger32(offset))); |
| 4119 | } else { |
| 4120 | Register offset = ToRegister(instr->offset()); |
| 4121 | __ leap(result, Operand(base, offset, times_1, 0)); |
| 4122 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4123 | } |
| 4124 | |
| 4125 | |
| 4126 | void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4127 | HStoreNamedField* hinstr = instr->hydrogen(); |
| 4128 | Representation representation = instr->representation(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4129 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4130 | HObjectAccess access = hinstr->access(); |
| 4131 | int offset = access.offset(); |
| 4132 | |
| 4133 | if (access.IsExternalMemory()) { |
| 4134 | DCHECK(!hinstr->NeedsWriteBarrier()); |
| 4135 | Register value = ToRegister(instr->value()); |
| 4136 | if (instr->object()->IsConstantOperand()) { |
| 4137 | DCHECK(value.is(rax)); |
| 4138 | LConstantOperand* object = LConstantOperand::cast(instr->object()); |
| 4139 | __ store_rax(ToExternalReference(object)); |
| 4140 | } else { |
| 4141 | Register object = ToRegister(instr->object()); |
| 4142 | __ Store(MemOperand(object, offset), value, representation); |
| 4143 | } |
| 4144 | return; |
| 4145 | } |
| 4146 | |
| 4147 | Register object = ToRegister(instr->object()); |
| 4148 | __ AssertNotSmi(object); |
| 4149 | |
| 4150 | DCHECK(!representation.IsSmi() || |
| 4151 | !instr->value()->IsConstantOperand() || |
| 4152 | IsInteger32Constant(LConstantOperand::cast(instr->value()))); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4153 | if (!FLAG_unbox_double_fields && representation.IsDouble()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4154 | DCHECK(access.IsInobject()); |
| 4155 | DCHECK(!hinstr->has_transition()); |
| 4156 | DCHECK(!hinstr->NeedsWriteBarrier()); |
| 4157 | XMMRegister value = ToDoubleRegister(instr->value()); |
| 4158 | __ movsd(FieldOperand(object, offset), value); |
| 4159 | return; |
| 4160 | } |
| 4161 | |
| 4162 | if (hinstr->has_transition()) { |
| 4163 | Handle<Map> transition = hinstr->transition_map(); |
| 4164 | AddDeprecationDependency(transition); |
| 4165 | if (!hinstr->NeedsWriteBarrierForMap()) { |
| 4166 | __ Move(FieldOperand(object, HeapObject::kMapOffset), transition); |
| 4167 | } else { |
| 4168 | Register temp = ToRegister(instr->temp()); |
| 4169 | __ Move(kScratchRegister, transition); |
| 4170 | __ movp(FieldOperand(object, HeapObject::kMapOffset), kScratchRegister); |
| 4171 | // Update the write barrier for the map field. |
| 4172 | __ RecordWriteForMap(object, |
| 4173 | kScratchRegister, |
| 4174 | temp, |
| 4175 | kSaveFPRegs); |
| 4176 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4177 | } |
| 4178 | |
| 4179 | // Do the store. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4180 | Register write_register = object; |
| 4181 | if (!access.IsInobject()) { |
| 4182 | write_register = ToRegister(instr->temp()); |
| 4183 | __ movp(write_register, FieldOperand(object, JSObject::kPropertiesOffset)); |
| 4184 | } |
| 4185 | |
| 4186 | if (representation.IsSmi() && SmiValuesAre32Bits() && |
| 4187 | hinstr->value()->representation().IsInteger32()) { |
| 4188 | DCHECK(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); |
| 4189 | if (FLAG_debug_code) { |
| 4190 | Register scratch = kScratchRegister; |
| 4191 | __ Load(scratch, FieldOperand(write_register, offset), representation); |
| 4192 | __ AssertSmi(scratch); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4193 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4194 | // Store int value directly to upper half of the smi. |
| 4195 | STATIC_ASSERT(kSmiTag == 0); |
| 4196 | DCHECK(kSmiTagSize + kSmiShiftSize == 32); |
| 4197 | offset += kPointerSize / 2; |
| 4198 | representation = Representation::Integer32(); |
| 4199 | } |
| 4200 | |
| 4201 | Operand operand = FieldOperand(write_register, offset); |
| 4202 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4203 | if (FLAG_unbox_double_fields && representation.IsDouble()) { |
| 4204 | DCHECK(access.IsInobject()); |
| 4205 | XMMRegister value = ToDoubleRegister(instr->value()); |
| 4206 | __ movsd(operand, value); |
| 4207 | |
| 4208 | } else if (instr->value()->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4209 | Register value = ToRegister(instr->value()); |
| 4210 | __ Store(operand, value, representation); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4211 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4212 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
| 4213 | if (IsInteger32Constant(operand_value)) { |
| 4214 | DCHECK(!hinstr->NeedsWriteBarrier()); |
| 4215 | int32_t value = ToInteger32(operand_value); |
| 4216 | if (representation.IsSmi()) { |
| 4217 | __ Move(operand, Smi::FromInt(value)); |
| 4218 | |
| 4219 | } else { |
| 4220 | __ movl(operand, Immediate(value)); |
| 4221 | } |
| 4222 | |
| 4223 | } else { |
| 4224 | Handle<Object> handle_value = ToHandle(operand_value); |
| 4225 | DCHECK(!hinstr->NeedsWriteBarrier()); |
| 4226 | __ Move(operand, handle_value); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4227 | } |
| 4228 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4229 | |
| 4230 | if (hinstr->NeedsWriteBarrier()) { |
| 4231 | Register value = ToRegister(instr->value()); |
| 4232 | Register temp = access.IsInobject() ? ToRegister(instr->temp()) : object; |
| 4233 | // Update the write barrier for the object for in-object properties. |
| 4234 | __ RecordWriteField(write_register, |
| 4235 | offset, |
| 4236 | value, |
| 4237 | temp, |
| 4238 | kSaveFPRegs, |
| 4239 | EMIT_REMEMBERED_SET, |
| 4240 | hinstr->SmiCheckForWriteBarrier(), |
| 4241 | hinstr->PointersToHereCheckForValue()); |
| 4242 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4243 | } |
| 4244 | |
| 4245 | |
| 4246 | void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4247 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4248 | DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); |
| 4249 | DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4250 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4251 | __ Move(StoreDescriptor::NameRegister(), instr->hydrogen()->name()); |
| 4252 | Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->strict_mode()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4253 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 4254 | } |
| 4255 | |
| 4256 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4257 | void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) { |
| 4258 | Representation representation = instr->hydrogen()->length()->representation(); |
| 4259 | DCHECK(representation.Equals(instr->hydrogen()->index()->representation())); |
| 4260 | DCHECK(representation.IsSmiOrInteger32()); |
| 4261 | |
| 4262 | Condition cc = instr->hydrogen()->allow_equality() ? below : below_equal; |
| 4263 | if (instr->length()->IsConstantOperand()) { |
| 4264 | int32_t length = ToInteger32(LConstantOperand::cast(instr->length())); |
| 4265 | Register index = ToRegister(instr->index()); |
| 4266 | if (representation.IsSmi()) { |
| 4267 | __ Cmp(index, Smi::FromInt(length)); |
| 4268 | } else { |
| 4269 | __ cmpl(index, Immediate(length)); |
| 4270 | } |
| 4271 | cc = CommuteCondition(cc); |
| 4272 | } else if (instr->index()->IsConstantOperand()) { |
| 4273 | int32_t index = ToInteger32(LConstantOperand::cast(instr->index())); |
| 4274 | if (instr->length()->IsRegister()) { |
| 4275 | Register length = ToRegister(instr->length()); |
| 4276 | if (representation.IsSmi()) { |
| 4277 | __ Cmp(length, Smi::FromInt(index)); |
| 4278 | } else { |
| 4279 | __ cmpl(length, Immediate(index)); |
| 4280 | } |
| 4281 | } else { |
| 4282 | Operand length = ToOperand(instr->length()); |
| 4283 | if (representation.IsSmi()) { |
| 4284 | __ Cmp(length, Smi::FromInt(index)); |
| 4285 | } else { |
| 4286 | __ cmpl(length, Immediate(index)); |
| 4287 | } |
| 4288 | } |
| 4289 | } else { |
| 4290 | Register index = ToRegister(instr->index()); |
| 4291 | if (instr->length()->IsRegister()) { |
| 4292 | Register length = ToRegister(instr->length()); |
| 4293 | if (representation.IsSmi()) { |
| 4294 | __ cmpp(length, index); |
| 4295 | } else { |
| 4296 | __ cmpl(length, index); |
| 4297 | } |
| 4298 | } else { |
| 4299 | Operand length = ToOperand(instr->length()); |
| 4300 | if (representation.IsSmi()) { |
| 4301 | __ cmpp(length, index); |
| 4302 | } else { |
| 4303 | __ cmpl(length, index); |
| 4304 | } |
| 4305 | } |
| 4306 | } |
| 4307 | if (FLAG_debug_code && instr->hydrogen()->skip_check()) { |
| 4308 | Label done; |
| 4309 | __ j(NegateCondition(cc), &done, Label::kNear); |
| 4310 | __ int3(); |
| 4311 | __ bind(&done); |
| 4312 | } else { |
| 4313 | DeoptimizeIf(cc, instr, "out of bounds"); |
| 4314 | } |
| 4315 | } |
| 4316 | |
| 4317 | |
| 4318 | void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4319 | ElementsKind elements_kind = instr->elements_kind(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4320 | LOperand* key = instr->key(); |
| 4321 | if (kPointerSize == kInt32Size && !key->IsConstantOperand()) { |
| 4322 | Register key_reg = ToRegister(key); |
| 4323 | Representation key_representation = |
| 4324 | instr->hydrogen()->key()->representation(); |
| 4325 | if (ExternalArrayOpRequiresTemp(key_representation, elements_kind)) { |
| 4326 | __ SmiToInteger64(key_reg, key_reg); |
| 4327 | } else if (instr->hydrogen()->IsDehoisted()) { |
| 4328 | // Sign extend key because it could be a 32 bit negative value |
| 4329 | // and the dehoisted address computation happens in 64 bits |
| 4330 | __ movsxlq(key_reg, key_reg); |
| 4331 | } |
| 4332 | } |
| 4333 | Operand operand(BuildFastArrayOperand( |
| 4334 | instr->elements(), |
| 4335 | key, |
| 4336 | instr->hydrogen()->key()->representation(), |
| 4337 | elements_kind, |
| 4338 | instr->base_offset())); |
| 4339 | |
| 4340 | if (elements_kind == EXTERNAL_FLOAT32_ELEMENTS || |
| 4341 | elements_kind == FLOAT32_ELEMENTS) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4342 | XMMRegister value(ToDoubleRegister(instr->value())); |
| 4343 | __ cvtsd2ss(value, value); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4344 | __ movss(operand, value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4345 | } else if (elements_kind == EXTERNAL_FLOAT64_ELEMENTS || |
| 4346 | elements_kind == FLOAT64_ELEMENTS) { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4347 | __ movsd(operand, ToDoubleRegister(instr->value())); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4348 | } else { |
| 4349 | Register value(ToRegister(instr->value())); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4350 | switch (elements_kind) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4351 | case EXTERNAL_UINT8_CLAMPED_ELEMENTS: |
| 4352 | case EXTERNAL_INT8_ELEMENTS: |
| 4353 | case EXTERNAL_UINT8_ELEMENTS: |
| 4354 | case INT8_ELEMENTS: |
| 4355 | case UINT8_ELEMENTS: |
| 4356 | case UINT8_CLAMPED_ELEMENTS: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4357 | __ movb(operand, value); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4358 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4359 | case EXTERNAL_INT16_ELEMENTS: |
| 4360 | case EXTERNAL_UINT16_ELEMENTS: |
| 4361 | case INT16_ELEMENTS: |
| 4362 | case UINT16_ELEMENTS: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4363 | __ movw(operand, value); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4364 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4365 | case EXTERNAL_INT32_ELEMENTS: |
| 4366 | case EXTERNAL_UINT32_ELEMENTS: |
| 4367 | case INT32_ELEMENTS: |
| 4368 | case UINT32_ELEMENTS: |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4369 | __ movl(operand, value); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4370 | break; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4371 | case EXTERNAL_FLOAT32_ELEMENTS: |
| 4372 | case EXTERNAL_FLOAT64_ELEMENTS: |
| 4373 | case FLOAT32_ELEMENTS: |
| 4374 | case FLOAT64_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4375 | case FAST_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4376 | case FAST_SMI_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4377 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4378 | case FAST_HOLEY_ELEMENTS: |
| 4379 | case FAST_HOLEY_SMI_ELEMENTS: |
| 4380 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 4381 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4382 | case SLOPPY_ARGUMENTS_ELEMENTS: |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4383 | UNREACHABLE(); |
| 4384 | break; |
| 4385 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4386 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4387 | } |
| 4388 | |
| 4389 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4390 | void LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4391 | XMMRegister value = ToDoubleRegister(instr->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4392 | LOperand* key = instr->key(); |
| 4393 | if (kPointerSize == kInt32Size && !key->IsConstantOperand() && |
| 4394 | instr->hydrogen()->IsDehoisted()) { |
| 4395 | // Sign extend key because it could be a 32 bit negative value |
| 4396 | // and the dehoisted address computation happens in 64 bits |
| 4397 | __ movsxlq(ToRegister(key), ToRegister(key)); |
| 4398 | } |
| 4399 | if (instr->NeedsCanonicalization()) { |
| 4400 | Label have_value; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4401 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4402 | __ ucomisd(value, value); |
| 4403 | __ j(parity_odd, &have_value, Label::kNear); // NaN. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4404 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4405 | __ Set(kScratchRegister, |
| 4406 | bit_cast<uint64_t>( |
| 4407 | FixedDoubleArray::canonical_not_the_hole_nan_as_double())); |
| 4408 | __ movq(value, kScratchRegister); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4409 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4410 | __ bind(&have_value); |
| 4411 | } |
| 4412 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4413 | Operand double_store_operand = BuildFastArrayOperand( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4414 | instr->elements(), |
| 4415 | key, |
| 4416 | instr->hydrogen()->key()->representation(), |
| 4417 | FAST_DOUBLE_ELEMENTS, |
| 4418 | instr->base_offset()); |
| 4419 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 4420 | __ movsd(double_store_operand, value); |
| 4421 | } |
| 4422 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4423 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4424 | void LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) { |
| 4425 | HStoreKeyed* hinstr = instr->hydrogen(); |
| 4426 | LOperand* key = instr->key(); |
| 4427 | int offset = instr->base_offset(); |
| 4428 | Representation representation = hinstr->value()->representation(); |
| 4429 | |
| 4430 | if (kPointerSize == kInt32Size && !key->IsConstantOperand() && |
| 4431 | instr->hydrogen()->IsDehoisted()) { |
| 4432 | // Sign extend key because it could be a 32 bit negative value |
| 4433 | // and the dehoisted address computation happens in 64 bits |
| 4434 | __ movsxlq(ToRegister(key), ToRegister(key)); |
| 4435 | } |
| 4436 | if (representation.IsInteger32() && SmiValuesAre32Bits()) { |
| 4437 | DCHECK(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); |
| 4438 | DCHECK(hinstr->elements_kind() == FAST_SMI_ELEMENTS); |
| 4439 | if (FLAG_debug_code) { |
| 4440 | Register scratch = kScratchRegister; |
| 4441 | __ Load(scratch, |
| 4442 | BuildFastArrayOperand(instr->elements(), |
| 4443 | key, |
| 4444 | instr->hydrogen()->key()->representation(), |
| 4445 | FAST_ELEMENTS, |
| 4446 | offset), |
| 4447 | Representation::Smi()); |
| 4448 | __ AssertSmi(scratch); |
| 4449 | } |
| 4450 | // Store int value directly to upper half of the smi. |
| 4451 | STATIC_ASSERT(kSmiTag == 0); |
| 4452 | DCHECK(kSmiTagSize + kSmiShiftSize == 32); |
| 4453 | offset += kPointerSize / 2; |
| 4454 | } |
| 4455 | |
| 4456 | Operand operand = |
| 4457 | BuildFastArrayOperand(instr->elements(), |
| 4458 | key, |
| 4459 | instr->hydrogen()->key()->representation(), |
| 4460 | FAST_ELEMENTS, |
| 4461 | offset); |
| 4462 | if (instr->value()->IsRegister()) { |
| 4463 | __ Store(operand, ToRegister(instr->value()), representation); |
| 4464 | } else { |
| 4465 | LConstantOperand* operand_value = LConstantOperand::cast(instr->value()); |
| 4466 | if (IsInteger32Constant(operand_value)) { |
| 4467 | int32_t value = ToInteger32(operand_value); |
| 4468 | if (representation.IsSmi()) { |
| 4469 | __ Move(operand, Smi::FromInt(value)); |
| 4470 | |
| 4471 | } else { |
| 4472 | __ movl(operand, Immediate(value)); |
| 4473 | } |
| 4474 | } else { |
| 4475 | Handle<Object> handle_value = ToHandle(operand_value); |
| 4476 | __ Move(operand, handle_value); |
| 4477 | } |
| 4478 | } |
| 4479 | |
| 4480 | if (hinstr->NeedsWriteBarrier()) { |
| 4481 | Register elements = ToRegister(instr->elements()); |
| 4482 | DCHECK(instr->value()->IsRegister()); |
| 4483 | Register value = ToRegister(instr->value()); |
| 4484 | DCHECK(!key->IsConstantOperand()); |
| 4485 | SmiCheck check_needed = hinstr->value()->type().IsHeapObject() |
| 4486 | ? OMIT_SMI_CHECK : INLINE_SMI_CHECK; |
| 4487 | // Compute address of modified element and store it into key register. |
| 4488 | Register key_reg(ToRegister(key)); |
| 4489 | __ leap(key_reg, operand); |
| 4490 | __ RecordWrite(elements, |
| 4491 | key_reg, |
| 4492 | value, |
| 4493 | kSaveFPRegs, |
| 4494 | EMIT_REMEMBERED_SET, |
| 4495 | check_needed, |
| 4496 | hinstr->PointersToHereCheckForValue()); |
| 4497 | } |
| 4498 | } |
| 4499 | |
| 4500 | |
| 4501 | void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) { |
| 4502 | if (instr->is_typed_elements()) { |
| 4503 | DoStoreKeyedExternalArray(instr); |
| 4504 | } else if (instr->hydrogen()->value()->representation().IsDouble()) { |
| 4505 | DoStoreKeyedFixedDoubleArray(instr); |
| 4506 | } else { |
| 4507 | DoStoreKeyedFixedArray(instr); |
| 4508 | } |
| 4509 | } |
| 4510 | |
| 4511 | |
| 4512 | void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) { |
| 4513 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4514 | DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister())); |
| 4515 | DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister())); |
| 4516 | DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister())); |
| 4517 | |
| 4518 | Handle<Code> ic = |
| 4519 | CodeFactory::KeyedStoreIC(isolate(), instr->strict_mode()).code(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4520 | CallCode(ic, RelocInfo::CODE_TARGET, instr); |
| 4521 | } |
| 4522 | |
| 4523 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4524 | void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) { |
| 4525 | Register object_reg = ToRegister(instr->object()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4526 | |
| 4527 | Handle<Map> from_map = instr->original_map(); |
| 4528 | Handle<Map> to_map = instr->transitioned_map(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4529 | ElementsKind from_kind = instr->from_kind(); |
| 4530 | ElementsKind to_kind = instr->to_kind(); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4531 | |
| 4532 | Label not_applicable; |
| 4533 | __ Cmp(FieldOperand(object_reg, HeapObject::kMapOffset), from_map); |
| 4534 | __ j(not_equal, ¬_applicable); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4535 | if (IsSimpleMapChangeTransition(from_kind, to_kind)) { |
| 4536 | Register new_map_reg = ToRegister(instr->new_map_temp()); |
| 4537 | __ Move(new_map_reg, to_map, RelocInfo::EMBEDDED_OBJECT); |
| 4538 | __ movp(FieldOperand(object_reg, HeapObject::kMapOffset), new_map_reg); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4539 | // Write barrier. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4540 | __ RecordWriteForMap(object_reg, new_map_reg, ToRegister(instr->temp()), |
| 4541 | kDontSaveFPRegs); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4542 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4543 | DCHECK(object_reg.is(rax)); |
| 4544 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4545 | PushSafepointRegistersScope scope(this); |
| 4546 | __ Move(rbx, to_map); |
| 4547 | bool is_js_array = from_map->instance_type() == JS_ARRAY_TYPE; |
| 4548 | TransitionElementsKindStub stub(isolate(), from_kind, to_kind, is_js_array); |
| 4549 | __ CallStub(&stub); |
| 4550 | RecordSafepointWithLazyDeopt(instr, RECORD_SAFEPOINT_WITH_REGISTERS, 0); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4551 | } |
| 4552 | __ bind(¬_applicable); |
| 4553 | } |
| 4554 | |
| 4555 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4556 | void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) { |
| 4557 | Register object = ToRegister(instr->object()); |
| 4558 | Register temp = ToRegister(instr->temp()); |
| 4559 | Label no_memento_found; |
| 4560 | __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found); |
| 4561 | DeoptimizeIf(equal, instr, "memento found"); |
| 4562 | __ bind(&no_memento_found); |
| 4563 | } |
| 4564 | |
| 4565 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4566 | void LCodeGen::DoStringAdd(LStringAdd* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4567 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 4568 | DCHECK(ToRegister(instr->left()).is(rdx)); |
| 4569 | DCHECK(ToRegister(instr->right()).is(rax)); |
| 4570 | StringAddStub stub(isolate(), |
| 4571 | instr->hydrogen()->flags(), |
| 4572 | instr->hydrogen()->pretenure_flag()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4573 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 4574 | } |
| 4575 | |
| 4576 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4577 | void LCodeGen::DoStringCharCodeAt(LStringCharCodeAt* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4578 | class DeferredStringCharCodeAt FINAL : public LDeferredCode { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4579 | public: |
| 4580 | DeferredStringCharCodeAt(LCodeGen* codegen, LStringCharCodeAt* instr) |
| 4581 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4582 | void Generate() OVERRIDE { codegen()->DoDeferredStringCharCodeAt(instr_); } |
| 4583 | LInstruction* instr() OVERRIDE { return instr_; } |
| 4584 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4585 | private: |
| 4586 | LStringCharCodeAt* instr_; |
| 4587 | }; |
| 4588 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4589 | DeferredStringCharCodeAt* deferred = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4590 | new(zone()) DeferredStringCharCodeAt(this, instr); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4591 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 4592 | StringCharLoadGenerator::Generate(masm(), |
| 4593 | ToRegister(instr->string()), |
| 4594 | ToRegister(instr->index()), |
| 4595 | ToRegister(instr->result()), |
| 4596 | deferred->entry()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4597 | __ bind(deferred->exit()); |
| 4598 | } |
| 4599 | |
| 4600 | |
| 4601 | void LCodeGen::DoDeferredStringCharCodeAt(LStringCharCodeAt* instr) { |
| 4602 | Register string = ToRegister(instr->string()); |
| 4603 | Register result = ToRegister(instr->result()); |
| 4604 | |
| 4605 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4606 | // result register contain a valid pointer because it is already |
| 4607 | // contained in the register pointer map. |
| 4608 | __ Set(result, 0); |
| 4609 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 4610 | PushSafepointRegistersScope scope(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4611 | __ Push(string); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4612 | // Push the index as a smi. This is safe because of the checks in |
| 4613 | // DoStringCharCodeAt above. |
| 4614 | STATIC_ASSERT(String::kMaxLength <= Smi::kMaxValue); |
| 4615 | if (instr->index()->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4616 | int32_t const_index = ToInteger32(LConstantOperand::cast(instr->index())); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4617 | __ Push(Smi::FromInt(const_index)); |
| 4618 | } else { |
| 4619 | Register index = ToRegister(instr->index()); |
| 4620 | __ Integer32ToSmi(index, index); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4621 | __ Push(index); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4622 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4623 | CallRuntimeFromDeferred( |
| 4624 | Runtime::kStringCharCodeAtRT, 2, instr, instr->context()); |
| 4625 | __ AssertSmi(rax); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4626 | __ SmiToInteger32(rax, rax); |
| 4627 | __ StoreToSafepointRegisterSlot(result, rax); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4628 | } |
| 4629 | |
| 4630 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4631 | void LCodeGen::DoStringCharFromCode(LStringCharFromCode* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4632 | class DeferredStringCharFromCode FINAL : public LDeferredCode { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4633 | public: |
| 4634 | DeferredStringCharFromCode(LCodeGen* codegen, LStringCharFromCode* instr) |
| 4635 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4636 | void Generate() OVERRIDE { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4637 | codegen()->DoDeferredStringCharFromCode(instr_); |
| 4638 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4639 | LInstruction* instr() OVERRIDE { return instr_; } |
| 4640 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4641 | private: |
| 4642 | LStringCharFromCode* instr_; |
| 4643 | }; |
| 4644 | |
| 4645 | DeferredStringCharFromCode* deferred = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4646 | new(zone()) DeferredStringCharFromCode(this, instr); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4647 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4648 | DCHECK(instr->hydrogen()->value()->representation().IsInteger32()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4649 | Register char_code = ToRegister(instr->char_code()); |
| 4650 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4651 | DCHECK(!char_code.is(result)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4652 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4653 | __ cmpl(char_code, Immediate(String::kMaxOneByteCharCode)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4654 | __ j(above, deferred->entry()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4655 | __ movsxlq(char_code, char_code); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4656 | __ LoadRoot(result, Heap::kSingleCharacterStringCacheRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4657 | __ movp(result, FieldOperand(result, |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4658 | char_code, times_pointer_size, |
| 4659 | FixedArray::kHeaderSize)); |
| 4660 | __ CompareRoot(result, Heap::kUndefinedValueRootIndex); |
| 4661 | __ j(equal, deferred->entry()); |
| 4662 | __ bind(deferred->exit()); |
| 4663 | } |
| 4664 | |
| 4665 | |
| 4666 | void LCodeGen::DoDeferredStringCharFromCode(LStringCharFromCode* instr) { |
| 4667 | Register char_code = ToRegister(instr->char_code()); |
| 4668 | Register result = ToRegister(instr->result()); |
| 4669 | |
| 4670 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4671 | // result register contain a valid pointer because it is already |
| 4672 | // contained in the register pointer map. |
| 4673 | __ Set(result, 0); |
| 4674 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 4675 | PushSafepointRegistersScope scope(this); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4676 | __ Integer32ToSmi(char_code, char_code); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4677 | __ Push(char_code); |
| 4678 | CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4679 | __ StoreToSafepointRegisterSlot(result, rax); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 4680 | } |
| 4681 | |
| 4682 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4683 | void LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4684 | LOperand* input = instr->value(); |
| 4685 | DCHECK(input->IsRegister() || input->IsStackSlot()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4686 | LOperand* output = instr->result(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4687 | DCHECK(output->IsDoubleRegister()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4688 | if (input->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4689 | __ Cvtlsi2sd(ToDoubleRegister(output), ToRegister(input)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4690 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4691 | __ Cvtlsi2sd(ToDoubleRegister(output), ToOperand(input)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4692 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4693 | } |
| 4694 | |
| 4695 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4696 | void LCodeGen::DoUint32ToDouble(LUint32ToDouble* instr) { |
| 4697 | LOperand* input = instr->value(); |
| 4698 | LOperand* output = instr->result(); |
| 4699 | |
| 4700 | __ LoadUint32(ToDoubleRegister(output), ToRegister(input)); |
| 4701 | } |
| 4702 | |
| 4703 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4704 | void LCodeGen::DoNumberTagI(LNumberTagI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4705 | class DeferredNumberTagI FINAL : public LDeferredCode { |
| 4706 | public: |
| 4707 | DeferredNumberTagI(LCodeGen* codegen, LNumberTagI* instr) |
| 4708 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4709 | void Generate() OVERRIDE { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4710 | codegen()->DoDeferredNumberTagIU(instr_, instr_->value(), instr_->temp1(), |
| 4711 | instr_->temp2(), SIGNED_INT32); |
| 4712 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4713 | LInstruction* instr() OVERRIDE { return instr_; } |
| 4714 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4715 | private: |
| 4716 | LNumberTagI* instr_; |
| 4717 | }; |
| 4718 | |
| 4719 | LOperand* input = instr->value(); |
| 4720 | DCHECK(input->IsRegister() && input->Equals(instr->result())); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4721 | Register reg = ToRegister(input); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4722 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4723 | if (SmiValuesAre32Bits()) { |
| 4724 | __ Integer32ToSmi(reg, reg); |
| 4725 | } else { |
| 4726 | DCHECK(SmiValuesAre31Bits()); |
| 4727 | DeferredNumberTagI* deferred = new(zone()) DeferredNumberTagI(this, instr); |
| 4728 | __ Integer32ToSmi(reg, reg); |
| 4729 | __ j(overflow, deferred->entry()); |
| 4730 | __ bind(deferred->exit()); |
| 4731 | } |
| 4732 | } |
| 4733 | |
| 4734 | |
| 4735 | void LCodeGen::DoNumberTagU(LNumberTagU* instr) { |
| 4736 | class DeferredNumberTagU FINAL : public LDeferredCode { |
| 4737 | public: |
| 4738 | DeferredNumberTagU(LCodeGen* codegen, LNumberTagU* instr) |
| 4739 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4740 | void Generate() OVERRIDE { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4741 | codegen()->DoDeferredNumberTagIU(instr_, instr_->value(), instr_->temp1(), |
| 4742 | instr_->temp2(), UNSIGNED_INT32); |
| 4743 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4744 | LInstruction* instr() OVERRIDE { return instr_; } |
| 4745 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4746 | private: |
| 4747 | LNumberTagU* instr_; |
| 4748 | }; |
| 4749 | |
| 4750 | LOperand* input = instr->value(); |
| 4751 | DCHECK(input->IsRegister() && input->Equals(instr->result())); |
| 4752 | Register reg = ToRegister(input); |
| 4753 | |
| 4754 | DeferredNumberTagU* deferred = new(zone()) DeferredNumberTagU(this, instr); |
| 4755 | __ cmpl(reg, Immediate(Smi::kMaxValue)); |
| 4756 | __ j(above, deferred->entry()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4757 | __ Integer32ToSmi(reg, reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4758 | __ bind(deferred->exit()); |
| 4759 | } |
| 4760 | |
| 4761 | |
| 4762 | void LCodeGen::DoDeferredNumberTagIU(LInstruction* instr, |
| 4763 | LOperand* value, |
| 4764 | LOperand* temp1, |
| 4765 | LOperand* temp2, |
| 4766 | IntegerSignedness signedness) { |
| 4767 | Label done, slow; |
| 4768 | Register reg = ToRegister(value); |
| 4769 | Register tmp = ToRegister(temp1); |
| 4770 | XMMRegister temp_xmm = ToDoubleRegister(temp2); |
| 4771 | |
| 4772 | // Load value into temp_xmm which will be preserved across potential call to |
| 4773 | // runtime (MacroAssembler::EnterExitFrameEpilogue preserves only allocatable |
| 4774 | // XMM registers on x64). |
| 4775 | if (signedness == SIGNED_INT32) { |
| 4776 | DCHECK(SmiValuesAre31Bits()); |
| 4777 | // There was overflow, so bits 30 and 31 of the original integer |
| 4778 | // disagree. Try to allocate a heap number in new space and store |
| 4779 | // the value in there. If that fails, call the runtime system. |
| 4780 | __ SmiToInteger32(reg, reg); |
| 4781 | __ xorl(reg, Immediate(0x80000000)); |
| 4782 | __ cvtlsi2sd(temp_xmm, reg); |
| 4783 | } else { |
| 4784 | DCHECK(signedness == UNSIGNED_INT32); |
| 4785 | __ LoadUint32(temp_xmm, reg); |
| 4786 | } |
| 4787 | |
| 4788 | if (FLAG_inline_new) { |
| 4789 | __ AllocateHeapNumber(reg, tmp, &slow); |
| 4790 | __ jmp(&done, kPointerSize == kInt64Size ? Label::kNear : Label::kFar); |
| 4791 | } |
| 4792 | |
| 4793 | // Slow case: Call the runtime system to do the number allocation. |
| 4794 | __ bind(&slow); |
| 4795 | { |
| 4796 | // Put a valid pointer value in the stack slot where the result |
| 4797 | // register is stored, as this register is in the pointer map, but contains |
| 4798 | // an integer value. |
| 4799 | __ Set(reg, 0); |
| 4800 | |
| 4801 | // Preserve the value of all registers. |
| 4802 | PushSafepointRegistersScope scope(this); |
| 4803 | |
| 4804 | // NumberTagIU uses the context from the frame, rather than |
| 4805 | // the environment's HContext or HInlinedContext value. |
| 4806 | // They only call Runtime::kAllocateHeapNumber. |
| 4807 | // The corresponding HChange instructions are added in a phase that does |
| 4808 | // not have easy access to the local context. |
| 4809 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
| 4810 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 4811 | RecordSafepointWithRegisters( |
| 4812 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
| 4813 | __ StoreToSafepointRegisterSlot(reg, rax); |
| 4814 | } |
| 4815 | |
| 4816 | // Done. Put the value in temp_xmm into the value of the allocated heap |
| 4817 | // number. |
| 4818 | __ bind(&done); |
| 4819 | __ movsd(FieldOperand(reg, HeapNumber::kValueOffset), temp_xmm); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4820 | } |
| 4821 | |
| 4822 | |
| 4823 | void LCodeGen::DoNumberTagD(LNumberTagD* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4824 | class DeferredNumberTagD FINAL : public LDeferredCode { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4825 | public: |
| 4826 | DeferredNumberTagD(LCodeGen* codegen, LNumberTagD* instr) |
| 4827 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 4828 | void Generate() OVERRIDE { codegen()->DoDeferredNumberTagD(instr_); } |
| 4829 | LInstruction* instr() OVERRIDE { return instr_; } |
| 4830 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4831 | private: |
| 4832 | LNumberTagD* instr_; |
| 4833 | }; |
| 4834 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4835 | XMMRegister input_reg = ToDoubleRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4836 | Register reg = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4837 | Register tmp = ToRegister(instr->temp()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4838 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4839 | DeferredNumberTagD* deferred = new(zone()) DeferredNumberTagD(this, instr); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4840 | if (FLAG_inline_new) { |
| 4841 | __ AllocateHeapNumber(reg, tmp, deferred->entry()); |
| 4842 | } else { |
| 4843 | __ jmp(deferred->entry()); |
| 4844 | } |
| 4845 | __ bind(deferred->exit()); |
| 4846 | __ movsd(FieldOperand(reg, HeapNumber::kValueOffset), input_reg); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4847 | } |
| 4848 | |
| 4849 | |
| 4850 | void LCodeGen::DoDeferredNumberTagD(LNumberTagD* instr) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4851 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 4852 | // result register contain a valid pointer because it is already |
| 4853 | // contained in the register pointer map. |
| 4854 | Register reg = ToRegister(instr->result()); |
| 4855 | __ Move(reg, Smi::FromInt(0)); |
| 4856 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 4857 | { |
| 4858 | PushSafepointRegistersScope scope(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4859 | // NumberTagD uses the context from the frame, rather than |
| 4860 | // the environment's HContext or HInlinedContext value. |
| 4861 | // They only call Runtime::kAllocateHeapNumber. |
| 4862 | // The corresponding HChange instructions are added in a phase that does |
| 4863 | // not have easy access to the local context. |
| 4864 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
| 4865 | __ CallRuntimeSaveDoubles(Runtime::kAllocateHeapNumber); |
| 4866 | RecordSafepointWithRegisters( |
| 4867 | instr->pointer_map(), 0, Safepoint::kNoLazyDeopt); |
| 4868 | __ movp(kScratchRegister, rax); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 4869 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4870 | __ movp(reg, kScratchRegister); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4871 | } |
| 4872 | |
| 4873 | |
| 4874 | void LCodeGen::DoSmiTag(LSmiTag* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4875 | HChange* hchange = instr->hydrogen(); |
| 4876 | Register input = ToRegister(instr->value()); |
| 4877 | Register output = ToRegister(instr->result()); |
| 4878 | if (hchange->CheckFlag(HValue::kCanOverflow) && |
| 4879 | hchange->value()->CheckFlag(HValue::kUint32)) { |
| 4880 | Condition is_smi = __ CheckUInteger32ValidSmiValue(input); |
| 4881 | DeoptimizeIf(NegateCondition(is_smi), instr, "overflow"); |
| 4882 | } |
| 4883 | __ Integer32ToSmi(output, input); |
| 4884 | if (hchange->CheckFlag(HValue::kCanOverflow) && |
| 4885 | !hchange->value()->CheckFlag(HValue::kUint32)) { |
| 4886 | DeoptimizeIf(overflow, instr, "overflow"); |
| 4887 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4888 | } |
| 4889 | |
| 4890 | |
| 4891 | void LCodeGen::DoSmiUntag(LSmiUntag* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4892 | DCHECK(instr->value()->Equals(instr->result())); |
| 4893 | Register input = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4894 | if (instr->needs_check()) { |
| 4895 | Condition is_smi = __ CheckSmi(input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4896 | DeoptimizeIf(NegateCondition(is_smi), instr, "not a Smi"); |
| 4897 | } else { |
| 4898 | __ AssertSmi(input); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4899 | } |
| 4900 | __ SmiToInteger32(input, input); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4901 | } |
| 4902 | |
| 4903 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4904 | void LCodeGen::EmitNumberUntagD(LNumberUntagD* instr, Register input_reg, |
| 4905 | XMMRegister result_reg, NumberUntagDMode mode) { |
| 4906 | bool can_convert_undefined_to_nan = |
| 4907 | instr->hydrogen()->can_convert_undefined_to_nan(); |
| 4908 | bool deoptimize_on_minus_zero = instr->hydrogen()->deoptimize_on_minus_zero(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4909 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4910 | Label convert, load_smi, done; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4911 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4912 | if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED) { |
| 4913 | // Smi check. |
| 4914 | __ JumpIfSmi(input_reg, &load_smi, Label::kNear); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4915 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4916 | // Heap number map check. |
| 4917 | __ CompareRoot(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 4918 | Heap::kHeapNumberMapRootIndex); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4919 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4920 | // On x64 it is safe to load at heap number offset before evaluating the map |
| 4921 | // check, since all heap objects are at least two words long. |
| 4922 | __ movsd(result_reg, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 4923 | |
| 4924 | if (can_convert_undefined_to_nan) { |
| 4925 | __ j(not_equal, &convert, Label::kNear); |
| 4926 | } else { |
| 4927 | DeoptimizeIf(not_equal, instr, "not a heap number"); |
| 4928 | } |
| 4929 | |
| 4930 | if (deoptimize_on_minus_zero) { |
| 4931 | XMMRegister xmm_scratch = double_scratch0(); |
| 4932 | __ xorps(xmm_scratch, xmm_scratch); |
| 4933 | __ ucomisd(xmm_scratch, result_reg); |
| 4934 | __ j(not_equal, &done, Label::kNear); |
| 4935 | __ movmskpd(kScratchRegister, result_reg); |
| 4936 | __ testq(kScratchRegister, Immediate(1)); |
| 4937 | DeoptimizeIf(not_zero, instr, "minus zero"); |
| 4938 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 4939 | __ jmp(&done, Label::kNear); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4940 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4941 | if (can_convert_undefined_to_nan) { |
| 4942 | __ bind(&convert); |
| 4943 | |
| 4944 | // Convert undefined (and hole) to NaN. Compute NaN as 0/0. |
| 4945 | __ CompareRoot(input_reg, Heap::kUndefinedValueRootIndex); |
| 4946 | DeoptimizeIf(not_equal, instr, "not a heap number/undefined"); |
| 4947 | |
| 4948 | __ xorps(result_reg, result_reg); |
| 4949 | __ divsd(result_reg, result_reg); |
| 4950 | __ jmp(&done, Label::kNear); |
| 4951 | } |
| 4952 | } else { |
| 4953 | DCHECK(mode == NUMBER_CANDIDATE_IS_SMI); |
Ben Murdoch | 7d3e7fc | 2011-07-12 16:37:06 +0100 | [diff] [blame] | 4954 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4955 | |
| 4956 | // Smi to XMM conversion |
| 4957 | __ bind(&load_smi); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 4958 | __ SmiToInteger32(kScratchRegister, input_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4959 | __ Cvtlsi2sd(result_reg, kScratchRegister); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4960 | __ bind(&done); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 4961 | } |
| 4962 | |
| 4963 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4964 | void LCodeGen::DoDeferredTaggedToI(LTaggedToI* instr, Label* done) { |
| 4965 | Register input_reg = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4966 | |
| 4967 | if (instr->truncating()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4968 | Label no_heap_number, check_bools, check_false; |
| 4969 | |
| 4970 | // Heap number map check. |
| 4971 | __ CompareRoot(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 4972 | Heap::kHeapNumberMapRootIndex); |
| 4973 | __ j(not_equal, &no_heap_number, Label::kNear); |
| 4974 | __ TruncateHeapNumberToI(input_reg, input_reg); |
| 4975 | __ jmp(done); |
| 4976 | |
| 4977 | __ bind(&no_heap_number); |
| 4978 | // Check for Oddballs. Undefined/False is converted to zero and True to one |
| 4979 | // for truncating conversions. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4980 | __ CompareRoot(input_reg, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4981 | __ j(not_equal, &check_bools, Label::kNear); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 4982 | __ Set(input_reg, 0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4983 | __ jmp(done); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4984 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4985 | __ bind(&check_bools); |
| 4986 | __ CompareRoot(input_reg, Heap::kTrueValueRootIndex); |
| 4987 | __ j(not_equal, &check_false, Label::kNear); |
| 4988 | __ Set(input_reg, 1); |
| 4989 | __ jmp(done); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4990 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4991 | __ bind(&check_false); |
| 4992 | __ CompareRoot(input_reg, Heap::kFalseValueRootIndex); |
| 4993 | DeoptimizeIf(not_equal, instr, "not a heap number/undefined/true/false"); |
| 4994 | __ Set(input_reg, 0); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 4995 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 4996 | XMMRegister scratch = ToDoubleRegister(instr->temp()); |
| 4997 | DCHECK(!scratch.is(xmm0)); |
| 4998 | __ CompareRoot(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 4999 | Heap::kHeapNumberMapRootIndex); |
| 5000 | DeoptimizeIf(not_equal, instr, "not a heap number"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5001 | __ movsd(xmm0, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5002 | __ cvttsd2si(input_reg, xmm0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5003 | __ Cvtlsi2sd(scratch, input_reg); |
| 5004 | __ ucomisd(xmm0, scratch); |
| 5005 | DeoptimizeIf(not_equal, instr, "lost precision"); |
| 5006 | DeoptimizeIf(parity_even, instr, "NaN"); |
| 5007 | if (instr->hydrogen()->GetMinusZeroMode() == FAIL_ON_MINUS_ZERO) { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5008 | __ testl(input_reg, input_reg); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5009 | __ j(not_zero, done); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5010 | __ movmskpd(input_reg, xmm0); |
| 5011 | __ andl(input_reg, Immediate(1)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5012 | DeoptimizeIf(not_zero, instr, "minus zero"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5013 | } |
| 5014 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5015 | } |
| 5016 | |
| 5017 | |
| 5018 | void LCodeGen::DoTaggedToI(LTaggedToI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5019 | class DeferredTaggedToI FINAL : public LDeferredCode { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5020 | public: |
| 5021 | DeferredTaggedToI(LCodeGen* codegen, LTaggedToI* instr) |
| 5022 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5023 | void Generate() OVERRIDE { codegen()->DoDeferredTaggedToI(instr_, done()); } |
| 5024 | LInstruction* instr() OVERRIDE { return instr_; } |
| 5025 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5026 | private: |
| 5027 | LTaggedToI* instr_; |
| 5028 | }; |
| 5029 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5030 | LOperand* input = instr->value(); |
| 5031 | DCHECK(input->IsRegister()); |
| 5032 | DCHECK(input->Equals(instr->result())); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5033 | Register input_reg = ToRegister(input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5034 | |
| 5035 | if (instr->hydrogen()->value()->representation().IsSmi()) { |
| 5036 | __ SmiToInteger32(input_reg, input_reg); |
| 5037 | } else { |
| 5038 | DeferredTaggedToI* deferred = new(zone()) DeferredTaggedToI(this, instr); |
| 5039 | __ JumpIfNotSmi(input_reg, deferred->entry()); |
| 5040 | __ SmiToInteger32(input_reg, input_reg); |
| 5041 | __ bind(deferred->exit()); |
| 5042 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5043 | } |
| 5044 | |
| 5045 | |
| 5046 | void LCodeGen::DoNumberUntagD(LNumberUntagD* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5047 | LOperand* input = instr->value(); |
| 5048 | DCHECK(input->IsRegister()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5049 | LOperand* result = instr->result(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5050 | DCHECK(result->IsDoubleRegister()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5051 | |
| 5052 | Register input_reg = ToRegister(input); |
| 5053 | XMMRegister result_reg = ToDoubleRegister(result); |
| 5054 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5055 | HValue* value = instr->hydrogen()->value(); |
| 5056 | NumberUntagDMode mode = value->representation().IsSmi() |
| 5057 | ? NUMBER_CANDIDATE_IS_SMI : NUMBER_CANDIDATE_IS_ANY_TAGGED; |
| 5058 | |
| 5059 | EmitNumberUntagD(instr, input_reg, result_reg, mode); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5060 | } |
| 5061 | |
| 5062 | |
| 5063 | void LCodeGen::DoDoubleToI(LDoubleToI* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5064 | LOperand* input = instr->value(); |
| 5065 | DCHECK(input->IsDoubleRegister()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5066 | LOperand* result = instr->result(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5067 | DCHECK(result->IsRegister()); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5068 | |
| 5069 | XMMRegister input_reg = ToDoubleRegister(input); |
| 5070 | Register result_reg = ToRegister(result); |
| 5071 | |
| 5072 | if (instr->truncating()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5073 | __ TruncateDoubleToI(result_reg, input_reg); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5074 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5075 | Label lost_precision, is_nan, minus_zero, done; |
| 5076 | XMMRegister xmm_scratch = double_scratch0(); |
| 5077 | Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear; |
| 5078 | __ DoubleToI(result_reg, input_reg, xmm_scratch, |
| 5079 | instr->hydrogen()->GetMinusZeroMode(), &lost_precision, |
| 5080 | &is_nan, &minus_zero, dist); |
| 5081 | __ jmp(&done, dist); |
| 5082 | __ bind(&lost_precision); |
| 5083 | DeoptimizeIf(no_condition, instr, "lost precision"); |
| 5084 | __ bind(&is_nan); |
| 5085 | DeoptimizeIf(no_condition, instr, "NaN"); |
| 5086 | __ bind(&minus_zero); |
| 5087 | DeoptimizeIf(no_condition, instr, "minus zero"); |
| 5088 | __ bind(&done); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5089 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5090 | } |
| 5091 | |
| 5092 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5093 | void LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) { |
| 5094 | LOperand* input = instr->value(); |
| 5095 | DCHECK(input->IsDoubleRegister()); |
| 5096 | LOperand* result = instr->result(); |
| 5097 | DCHECK(result->IsRegister()); |
| 5098 | |
| 5099 | XMMRegister input_reg = ToDoubleRegister(input); |
| 5100 | Register result_reg = ToRegister(result); |
| 5101 | |
| 5102 | Label lost_precision, is_nan, minus_zero, done; |
| 5103 | XMMRegister xmm_scratch = double_scratch0(); |
| 5104 | Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear; |
| 5105 | __ DoubleToI(result_reg, input_reg, xmm_scratch, |
| 5106 | instr->hydrogen()->GetMinusZeroMode(), &lost_precision, &is_nan, |
| 5107 | &minus_zero, dist); |
| 5108 | __ jmp(&done, dist); |
| 5109 | __ bind(&lost_precision); |
| 5110 | DeoptimizeIf(no_condition, instr, "lost precision"); |
| 5111 | __ bind(&is_nan); |
| 5112 | DeoptimizeIf(no_condition, instr, "NaN"); |
| 5113 | __ bind(&minus_zero); |
| 5114 | DeoptimizeIf(no_condition, instr, "minus zero"); |
| 5115 | __ bind(&done); |
| 5116 | __ Integer32ToSmi(result_reg, result_reg); |
| 5117 | DeoptimizeIf(overflow, instr, "overflow"); |
| 5118 | } |
| 5119 | |
| 5120 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5121 | void LCodeGen::DoCheckSmi(LCheckSmi* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5122 | LOperand* input = instr->value(); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5123 | Condition cc = masm()->CheckSmi(ToRegister(input)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5124 | DeoptimizeIf(NegateCondition(cc), instr, "not a Smi"); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5125 | } |
| 5126 | |
| 5127 | |
| 5128 | void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5129 | if (!instr->hydrogen()->value()->type().IsHeapObject()) { |
| 5130 | LOperand* input = instr->value(); |
| 5131 | Condition cc = masm()->CheckSmi(ToRegister(input)); |
| 5132 | DeoptimizeIf(cc, instr, "Smi"); |
| 5133 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5134 | } |
| 5135 | |
| 5136 | |
| 5137 | void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5138 | Register input = ToRegister(instr->value()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5139 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5140 | __ movp(kScratchRegister, FieldOperand(input, HeapObject::kMapOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5141 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5142 | if (instr->hydrogen()->is_interval_check()) { |
| 5143 | InstanceType first; |
| 5144 | InstanceType last; |
| 5145 | instr->hydrogen()->GetCheckInterval(&first, &last); |
| 5146 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5147 | __ cmpb(FieldOperand(kScratchRegister, Map::kInstanceTypeOffset), |
| 5148 | Immediate(static_cast<int8_t>(first))); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5149 | |
| 5150 | // If there is only one type in the interval check for equality. |
| 5151 | if (first == last) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5152 | DeoptimizeIf(not_equal, instr, "wrong instance type"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5153 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5154 | DeoptimizeIf(below, instr, "wrong instance type"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5155 | // Omit check for the last type. |
| 5156 | if (last != LAST_TYPE) { |
| 5157 | __ cmpb(FieldOperand(kScratchRegister, Map::kInstanceTypeOffset), |
| 5158 | Immediate(static_cast<int8_t>(last))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5159 | DeoptimizeIf(above, instr, "wrong instance type"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5160 | } |
| 5161 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5162 | } else { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5163 | uint8_t mask; |
| 5164 | uint8_t tag; |
| 5165 | instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag); |
| 5166 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5167 | if (base::bits::IsPowerOfTwo32(mask)) { |
| 5168 | DCHECK(tag == 0 || base::bits::IsPowerOfTwo32(tag)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5169 | __ testb(FieldOperand(kScratchRegister, Map::kInstanceTypeOffset), |
| 5170 | Immediate(mask)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5171 | DeoptimizeIf(tag == 0 ? not_zero : zero, instr, "wrong instance type"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5172 | } else { |
| 5173 | __ movzxbl(kScratchRegister, |
| 5174 | FieldOperand(kScratchRegister, Map::kInstanceTypeOffset)); |
| 5175 | __ andb(kScratchRegister, Immediate(mask)); |
| 5176 | __ cmpb(kScratchRegister, Immediate(tag)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5177 | DeoptimizeIf(not_equal, instr, "wrong instance type"); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5178 | } |
| 5179 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5180 | } |
| 5181 | |
| 5182 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5183 | void LCodeGen::DoCheckValue(LCheckValue* instr) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5184 | Register reg = ToRegister(instr->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5185 | __ Cmp(reg, instr->hydrogen()->object().handle()); |
| 5186 | DeoptimizeIf(not_equal, instr, "value mismatch"); |
| 5187 | } |
| 5188 | |
| 5189 | |
| 5190 | void LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) { |
| 5191 | { |
| 5192 | PushSafepointRegistersScope scope(this); |
| 5193 | __ Push(object); |
| 5194 | __ Set(rsi, 0); |
| 5195 | __ CallRuntimeSaveDoubles(Runtime::kTryMigrateInstance); |
| 5196 | RecordSafepointWithRegisters( |
| 5197 | instr->pointer_map(), 1, Safepoint::kNoLazyDeopt); |
| 5198 | |
| 5199 | __ testp(rax, Immediate(kSmiTagMask)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5200 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5201 | DeoptimizeIf(zero, instr, "instance migration failed"); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5202 | } |
| 5203 | |
| 5204 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5205 | void LCodeGen::DoCheckMaps(LCheckMaps* instr) { |
| 5206 | class DeferredCheckMaps FINAL : public LDeferredCode { |
| 5207 | public: |
| 5208 | DeferredCheckMaps(LCodeGen* codegen, LCheckMaps* instr, Register object) |
| 5209 | : LDeferredCode(codegen), instr_(instr), object_(object) { |
| 5210 | SetExit(check_maps()); |
| 5211 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5212 | void Generate() OVERRIDE { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5213 | codegen()->DoDeferredInstanceMigration(instr_, object_); |
| 5214 | } |
| 5215 | Label* check_maps() { return &check_maps_; } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5216 | LInstruction* instr() OVERRIDE { return instr_; } |
| 5217 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5218 | private: |
| 5219 | LCheckMaps* instr_; |
| 5220 | Label check_maps_; |
| 5221 | Register object_; |
| 5222 | }; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5223 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5224 | if (instr->hydrogen()->IsStabilityCheck()) { |
| 5225 | const UniqueSet<Map>* maps = instr->hydrogen()->maps(); |
| 5226 | for (int i = 0; i < maps->size(); ++i) { |
| 5227 | AddStabilityDependency(maps->at(i).handle()); |
| 5228 | } |
| 5229 | return; |
| 5230 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5231 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5232 | LOperand* input = instr->value(); |
| 5233 | DCHECK(input->IsRegister()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5234 | Register reg = ToRegister(input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5235 | |
| 5236 | DeferredCheckMaps* deferred = NULL; |
| 5237 | if (instr->hydrogen()->HasMigrationTarget()) { |
| 5238 | deferred = new(zone()) DeferredCheckMaps(this, instr, reg); |
| 5239 | __ bind(deferred->check_maps()); |
| 5240 | } |
| 5241 | |
| 5242 | const UniqueSet<Map>* maps = instr->hydrogen()->maps(); |
| 5243 | Label success; |
| 5244 | for (int i = 0; i < maps->size() - 1; i++) { |
| 5245 | Handle<Map> map = maps->at(i).handle(); |
| 5246 | __ CompareMap(reg, map); |
| 5247 | __ j(equal, &success, Label::kNear); |
| 5248 | } |
| 5249 | |
| 5250 | Handle<Map> map = maps->at(maps->size() - 1).handle(); |
| 5251 | __ CompareMap(reg, map); |
| 5252 | if (instr->hydrogen()->HasMigrationTarget()) { |
| 5253 | __ j(not_equal, deferred->entry()); |
| 5254 | } else { |
| 5255 | DeoptimizeIf(not_equal, instr, "wrong map"); |
| 5256 | } |
| 5257 | |
| 5258 | __ bind(&success); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5259 | } |
| 5260 | |
| 5261 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5262 | void LCodeGen::DoClampDToUint8(LClampDToUint8* instr) { |
| 5263 | XMMRegister value_reg = ToDoubleRegister(instr->unclamped()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5264 | XMMRegister xmm_scratch = double_scratch0(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5265 | Register result_reg = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5266 | __ ClampDoubleToUint8(value_reg, xmm_scratch, result_reg); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5267 | } |
| 5268 | |
| 5269 | |
| 5270 | void LCodeGen::DoClampIToUint8(LClampIToUint8* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5271 | DCHECK(instr->unclamped()->Equals(instr->result())); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5272 | Register value_reg = ToRegister(instr->result()); |
| 5273 | __ ClampUint8(value_reg); |
| 5274 | } |
| 5275 | |
| 5276 | |
| 5277 | void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5278 | DCHECK(instr->unclamped()->Equals(instr->result())); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5279 | Register input_reg = ToRegister(instr->unclamped()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5280 | XMMRegister temp_xmm_reg = ToDoubleRegister(instr->temp_xmm()); |
| 5281 | XMMRegister xmm_scratch = double_scratch0(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5282 | Label is_smi, done, heap_number; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5283 | Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear; |
| 5284 | __ JumpIfSmi(input_reg, &is_smi, dist); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5285 | |
| 5286 | // Check for heap number |
| 5287 | __ Cmp(FieldOperand(input_reg, HeapObject::kMapOffset), |
| 5288 | factory()->heap_number_map()); |
| 5289 | __ j(equal, &heap_number, Label::kNear); |
| 5290 | |
| 5291 | // Check for undefined. Undefined is converted to zero for clamping |
| 5292 | // conversions. |
| 5293 | __ Cmp(input_reg, factory()->undefined_value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5294 | DeoptimizeIf(not_equal, instr, "not a heap number/undefined"); |
| 5295 | __ xorl(input_reg, input_reg); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5296 | __ jmp(&done, Label::kNear); |
| 5297 | |
| 5298 | // Heap number |
| 5299 | __ bind(&heap_number); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5300 | __ movsd(xmm_scratch, FieldOperand(input_reg, HeapNumber::kValueOffset)); |
| 5301 | __ ClampDoubleToUint8(xmm_scratch, temp_xmm_reg, input_reg); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5302 | __ jmp(&done, Label::kNear); |
| 5303 | |
| 5304 | // smi |
| 5305 | __ bind(&is_smi); |
| 5306 | __ SmiToInteger32(input_reg, input_reg); |
| 5307 | __ ClampUint8(input_reg); |
| 5308 | |
| 5309 | __ bind(&done); |
| 5310 | } |
| 5311 | |
| 5312 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5313 | void LCodeGen::DoDoubleBits(LDoubleBits* instr) { |
| 5314 | XMMRegister value_reg = ToDoubleRegister(instr->value()); |
| 5315 | Register result_reg = ToRegister(instr->result()); |
| 5316 | if (instr->hydrogen()->bits() == HDoubleBits::HIGH) { |
| 5317 | __ movq(result_reg, value_reg); |
| 5318 | __ shrq(result_reg, Immediate(32)); |
| 5319 | } else { |
| 5320 | __ movd(result_reg, value_reg); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5321 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5322 | } |
| 5323 | |
| 5324 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5325 | void LCodeGen::DoConstructDouble(LConstructDouble* instr) { |
| 5326 | Register hi_reg = ToRegister(instr->hi()); |
| 5327 | Register lo_reg = ToRegister(instr->lo()); |
| 5328 | XMMRegister result_reg = ToDoubleRegister(instr->result()); |
| 5329 | XMMRegister xmm_scratch = double_scratch0(); |
| 5330 | __ movd(result_reg, hi_reg); |
| 5331 | __ psllq(result_reg, 32); |
| 5332 | __ movd(xmm_scratch, lo_reg); |
| 5333 | __ orps(result_reg, xmm_scratch); |
| 5334 | } |
| 5335 | |
| 5336 | |
| 5337 | void LCodeGen::DoAllocate(LAllocate* instr) { |
| 5338 | class DeferredAllocate FINAL : public LDeferredCode { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5339 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5340 | DeferredAllocate(LCodeGen* codegen, LAllocate* instr) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5341 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5342 | void Generate() OVERRIDE { codegen()->DoDeferredAllocate(instr_); } |
| 5343 | LInstruction* instr() OVERRIDE { return instr_; } |
| 5344 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5345 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5346 | LAllocate* instr_; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5347 | }; |
| 5348 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5349 | DeferredAllocate* deferred = |
| 5350 | new(zone()) DeferredAllocate(this, instr); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5351 | |
| 5352 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5353 | Register temp = ToRegister(instr->temp()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5354 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5355 | // Allocate memory for the object. |
| 5356 | AllocationFlags flags = TAG_OBJECT; |
| 5357 | if (instr->hydrogen()->MustAllocateDoubleAligned()) { |
| 5358 | flags = static_cast<AllocationFlags>(flags | DOUBLE_ALIGNMENT); |
| 5359 | } |
| 5360 | if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { |
| 5361 | DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); |
| 5362 | DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
| 5363 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_POINTER_SPACE); |
| 5364 | } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { |
| 5365 | DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
| 5366 | flags = static_cast<AllocationFlags>(flags | PRETENURE_OLD_DATA_SPACE); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5367 | } |
| 5368 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5369 | if (instr->size()->IsConstantOperand()) { |
| 5370 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 5371 | if (size <= Page::kMaxRegularHeapObjectSize) { |
| 5372 | __ Allocate(size, result, temp, no_reg, deferred->entry(), flags); |
| 5373 | } else { |
| 5374 | __ jmp(deferred->entry()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5375 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5376 | } else { |
| 5377 | Register size = ToRegister(instr->size()); |
| 5378 | __ Allocate(size, result, temp, no_reg, deferred->entry(), flags); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5379 | } |
| 5380 | |
| 5381 | __ bind(deferred->exit()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5382 | |
| 5383 | if (instr->hydrogen()->MustPrefillWithFiller()) { |
| 5384 | if (instr->size()->IsConstantOperand()) { |
| 5385 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 5386 | __ movl(temp, Immediate((size / kPointerSize) - 1)); |
| 5387 | } else { |
| 5388 | temp = ToRegister(instr->size()); |
| 5389 | __ sarp(temp, Immediate(kPointerSizeLog2)); |
| 5390 | __ decl(temp); |
| 5391 | } |
| 5392 | Label loop; |
| 5393 | __ bind(&loop); |
| 5394 | __ Move(FieldOperand(result, temp, times_pointer_size, 0), |
| 5395 | isolate()->factory()->one_pointer_filler_map()); |
| 5396 | __ decl(temp); |
| 5397 | __ j(not_zero, &loop); |
| 5398 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5399 | } |
| 5400 | |
| 5401 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5402 | void LCodeGen::DoDeferredAllocate(LAllocate* instr) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5403 | Register result = ToRegister(instr->result()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5404 | |
| 5405 | // TODO(3095996): Get rid of this. For now, we need to make the |
| 5406 | // result register contain a valid pointer because it is already |
| 5407 | // contained in the register pointer map. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5408 | __ Move(result, Smi::FromInt(0)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5409 | |
| 5410 | PushSafepointRegistersScope scope(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5411 | if (instr->size()->IsRegister()) { |
| 5412 | Register size = ToRegister(instr->size()); |
| 5413 | DCHECK(!size.is(result)); |
| 5414 | __ Integer32ToSmi(size, size); |
| 5415 | __ Push(size); |
| 5416 | } else { |
| 5417 | int32_t size = ToInteger32(LConstantOperand::cast(instr->size())); |
| 5418 | __ Push(Smi::FromInt(size)); |
| 5419 | } |
| 5420 | |
| 5421 | int flags = 0; |
| 5422 | if (instr->hydrogen()->IsOldPointerSpaceAllocation()) { |
| 5423 | DCHECK(!instr->hydrogen()->IsOldDataSpaceAllocation()); |
| 5424 | DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
| 5425 | flags = AllocateTargetSpace::update(flags, OLD_POINTER_SPACE); |
| 5426 | } else if (instr->hydrogen()->IsOldDataSpaceAllocation()) { |
| 5427 | DCHECK(!instr->hydrogen()->IsNewSpaceAllocation()); |
| 5428 | flags = AllocateTargetSpace::update(flags, OLD_DATA_SPACE); |
| 5429 | } else { |
| 5430 | flags = AllocateTargetSpace::update(flags, NEW_SPACE); |
| 5431 | } |
| 5432 | __ Push(Smi::FromInt(flags)); |
| 5433 | |
| 5434 | CallRuntimeFromDeferred( |
| 5435 | Runtime::kAllocateInTargetSpace, 2, instr, instr->context()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5436 | __ StoreToSafepointRegisterSlot(result, rax); |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 5437 | } |
| 5438 | |
| 5439 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5440 | void LCodeGen::DoToFastProperties(LToFastProperties* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5441 | DCHECK(ToRegister(instr->value()).is(rax)); |
| 5442 | __ Push(rax); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5443 | CallRuntime(Runtime::kToFastProperties, 1, instr); |
| 5444 | } |
| 5445 | |
| 5446 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5447 | void LCodeGen::DoRegExpLiteral(LRegExpLiteral* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5448 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5449 | Label materialized; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5450 | // Registers will be used as follows: |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5451 | // rcx = literals array. |
| 5452 | // rbx = regexp literal. |
| 5453 | // rax = regexp literal clone. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5454 | int literal_offset = |
| 5455 | FixedArray::OffsetOfElementAt(instr->hydrogen()->literal_index()); |
| 5456 | __ Move(rcx, instr->hydrogen()->literals()); |
| 5457 | __ movp(rbx, FieldOperand(rcx, literal_offset)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5458 | __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5459 | __ j(not_equal, &materialized, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5460 | |
| 5461 | // Create regexp literal using runtime function |
| 5462 | // Result will be in rax. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5463 | __ Push(rcx); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5464 | __ Push(Smi::FromInt(instr->hydrogen()->literal_index())); |
| 5465 | __ Push(instr->hydrogen()->pattern()); |
| 5466 | __ Push(instr->hydrogen()->flags()); |
| 5467 | CallRuntime(Runtime::kMaterializeRegExpLiteral, 4, instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5468 | __ movp(rbx, rax); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5469 | |
| 5470 | __ bind(&materialized); |
| 5471 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 5472 | Label allocated, runtime_allocate; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5473 | __ Allocate(size, rax, rcx, rdx, &runtime_allocate, TAG_OBJECT); |
| 5474 | __ jmp(&allocated, Label::kNear); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5475 | |
| 5476 | __ bind(&runtime_allocate); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5477 | __ Push(rbx); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5478 | __ Push(Smi::FromInt(size)); |
| 5479 | CallRuntime(Runtime::kAllocateInNewSpace, 1, instr); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5480 | __ Pop(rbx); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5481 | |
| 5482 | __ bind(&allocated); |
| 5483 | // Copy the content into the newly allocated memory. |
| 5484 | // (Unroll copy loop once for better throughput). |
| 5485 | for (int i = 0; i < size - kPointerSize; i += 2 * kPointerSize) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5486 | __ movp(rdx, FieldOperand(rbx, i)); |
| 5487 | __ movp(rcx, FieldOperand(rbx, i + kPointerSize)); |
| 5488 | __ movp(FieldOperand(rax, i), rdx); |
| 5489 | __ movp(FieldOperand(rax, i + kPointerSize), rcx); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5490 | } |
| 5491 | if ((size % (2 * kPointerSize)) != 0) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5492 | __ movp(rdx, FieldOperand(rbx, size - kPointerSize)); |
| 5493 | __ movp(FieldOperand(rax, size - kPointerSize), rdx); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5494 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5495 | } |
| 5496 | |
| 5497 | |
| 5498 | void LCodeGen::DoFunctionLiteral(LFunctionLiteral* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5499 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5500 | // Use the fast case closure allocation code that allocates in new |
| 5501 | // space for nested functions that don't need literals cloning. |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5502 | bool pretenure = instr->hydrogen()->pretenure(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5503 | if (!pretenure && instr->hydrogen()->has_no_literals()) { |
| 5504 | FastNewClosureStub stub(isolate(), instr->hydrogen()->strict_mode(), |
| 5505 | instr->hydrogen()->kind()); |
| 5506 | __ Move(rbx, instr->hydrogen()->shared_info()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5507 | CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr); |
| 5508 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5509 | __ Push(rsi); |
| 5510 | __ Push(instr->hydrogen()->shared_info()); |
| 5511 | __ PushRoot(pretenure ? Heap::kTrueValueRootIndex : |
| 5512 | Heap::kFalseValueRootIndex); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5513 | CallRuntime(Runtime::kNewClosure, 3, instr); |
| 5514 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5515 | } |
| 5516 | |
| 5517 | |
| 5518 | void LCodeGen::DoTypeof(LTypeof* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5519 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 5520 | LOperand* input = instr->value(); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5521 | EmitPushTaggedOperand(input); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5522 | CallRuntime(Runtime::kTypeof, 1, instr); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5523 | } |
| 5524 | |
| 5525 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5526 | void LCodeGen::EmitPushTaggedOperand(LOperand* operand) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5527 | DCHECK(!operand->IsDoubleRegister()); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5528 | if (operand->IsConstantOperand()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5529 | __ Push(ToHandle(LConstantOperand::cast(operand))); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5530 | } else if (operand->IsRegister()) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5531 | __ Push(ToRegister(operand)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5532 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5533 | __ Push(ToOperand(operand)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5534 | } |
| 5535 | } |
| 5536 | |
| 5537 | |
| 5538 | void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5539 | Register input = ToRegister(instr->value()); |
| 5540 | Condition final_branch_condition = EmitTypeofIs(instr, input); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5541 | if (final_branch_condition != no_condition) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5542 | EmitBranch(instr, final_branch_condition); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5543 | } |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5544 | } |
| 5545 | |
| 5546 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5547 | Condition LCodeGen::EmitTypeofIs(LTypeofIsAndBranch* instr, Register input) { |
| 5548 | Label* true_label = instr->TrueLabel(chunk_); |
| 5549 | Label* false_label = instr->FalseLabel(chunk_); |
| 5550 | Handle<String> type_name = instr->type_literal(); |
| 5551 | int left_block = instr->TrueDestination(chunk_); |
| 5552 | int right_block = instr->FalseDestination(chunk_); |
| 5553 | int next_block = GetNextEmittedBlock(); |
| 5554 | |
| 5555 | Label::Distance true_distance = left_block == next_block ? Label::kNear |
| 5556 | : Label::kFar; |
| 5557 | Label::Distance false_distance = right_block == next_block ? Label::kNear |
| 5558 | : Label::kFar; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5559 | Condition final_branch_condition = no_condition; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5560 | Factory* factory = isolate()->factory(); |
| 5561 | if (String::Equals(type_name, factory->number_string())) { |
| 5562 | __ JumpIfSmi(input, true_label, true_distance); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5563 | __ CompareRoot(FieldOperand(input, HeapObject::kMapOffset), |
| 5564 | Heap::kHeapNumberMapRootIndex); |
| 5565 | |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5566 | final_branch_condition = equal; |
| 5567 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5568 | } else if (String::Equals(type_name, factory->string_string())) { |
| 5569 | __ JumpIfSmi(input, false_label, false_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5570 | __ CmpObjectType(input, FIRST_NONSTRING_TYPE, input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5571 | __ j(above_equal, false_label, false_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5572 | __ testb(FieldOperand(input, Map::kBitFieldOffset), |
| 5573 | Immediate(1 << Map::kIsUndetectable)); |
| 5574 | final_branch_condition = zero; |
| 5575 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5576 | } else if (String::Equals(type_name, factory->symbol_string())) { |
| 5577 | __ JumpIfSmi(input, false_label, false_distance); |
| 5578 | __ CmpObjectType(input, SYMBOL_TYPE, input); |
| 5579 | final_branch_condition = equal; |
| 5580 | |
| 5581 | } else if (String::Equals(type_name, factory->boolean_string())) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5582 | __ CompareRoot(input, Heap::kTrueValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5583 | __ j(equal, true_label, true_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5584 | __ CompareRoot(input, Heap::kFalseValueRootIndex); |
| 5585 | final_branch_condition = equal; |
| 5586 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5587 | } else if (String::Equals(type_name, factory->undefined_string())) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5588 | __ CompareRoot(input, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5589 | __ j(equal, true_label, true_distance); |
| 5590 | __ JumpIfSmi(input, false_label, false_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5591 | // Check for undetectable objects => true. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5592 | __ movp(input, FieldOperand(input, HeapObject::kMapOffset)); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5593 | __ testb(FieldOperand(input, Map::kBitFieldOffset), |
| 5594 | Immediate(1 << Map::kIsUndetectable)); |
| 5595 | final_branch_condition = not_zero; |
| 5596 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5597 | } else if (String::Equals(type_name, factory->function_string())) { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5598 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5599 | __ JumpIfSmi(input, false_label, false_distance); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5600 | __ CmpObjectType(input, JS_FUNCTION_TYPE, input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5601 | __ j(equal, true_label, true_distance); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5602 | __ CmpInstanceType(input, JS_FUNCTION_PROXY_TYPE); |
| 5603 | final_branch_condition = equal; |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5604 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5605 | } else if (String::Equals(type_name, factory->object_string())) { |
| 5606 | __ JumpIfSmi(input, false_label, false_distance); |
| 5607 | __ CompareRoot(input, Heap::kNullValueRootIndex); |
| 5608 | __ j(equal, true_label, true_distance); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5609 | __ CmpObjectType(input, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, input); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5610 | __ j(below, false_label, false_distance); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5611 | __ CmpInstanceType(input, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5612 | __ j(above, false_label, false_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5613 | // Check for undetectable objects => false. |
| 5614 | __ testb(FieldOperand(input, Map::kBitFieldOffset), |
| 5615 | Immediate(1 << Map::kIsUndetectable)); |
| 5616 | final_branch_condition = zero; |
| 5617 | |
| 5618 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5619 | __ jmp(false_label, false_distance); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5620 | } |
| 5621 | |
| 5622 | return final_branch_condition; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5623 | } |
| 5624 | |
| 5625 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5626 | void LCodeGen::DoIsConstructCallAndBranch(LIsConstructCallAndBranch* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5627 | Register temp = ToRegister(instr->temp()); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5628 | |
| 5629 | EmitIsConstructCall(temp); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5630 | EmitBranch(instr, equal); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5631 | } |
| 5632 | |
| 5633 | |
| 5634 | void LCodeGen::EmitIsConstructCall(Register temp) { |
| 5635 | // Get the frame pointer for the calling frame. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5636 | __ movp(temp, Operand(rbp, StandardFrameConstants::kCallerFPOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5637 | |
| 5638 | // Skip the arguments adaptor frame if it exists. |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5639 | Label check_frame_marker; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5640 | __ Cmp(Operand(temp, StandardFrameConstants::kContextOffset), |
| 5641 | Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5642 | __ j(not_equal, &check_frame_marker, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5643 | __ movp(temp, Operand(temp, StandardFrameConstants::kCallerFPOffset)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5644 | |
| 5645 | // Check the marker in the calling frame. |
| 5646 | __ bind(&check_frame_marker); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 5647 | __ Cmp(Operand(temp, StandardFrameConstants::kMarkerOffset), |
| 5648 | Smi::FromInt(StackFrame::CONSTRUCT)); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 5649 | } |
| 5650 | |
| 5651 | |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5652 | void LCodeGen::EnsureSpaceForLazyDeopt(int space_needed) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5653 | if (!info()->IsStub()) { |
| 5654 | // Ensure that we have enough space after the previous lazy-bailout |
| 5655 | // instruction for patching the code here. |
| 5656 | int current_pc = masm()->pc_offset(); |
| 5657 | if (current_pc < last_lazy_deopt_pc_ + space_needed) { |
| 5658 | int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc; |
| 5659 | __ Nop(padding_size); |
| 5660 | } |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5661 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5662 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5663 | } |
| 5664 | |
| 5665 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5666 | void LCodeGen::DoLazyBailout(LLazyBailout* instr) { |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5667 | last_lazy_deopt_pc_ = masm()->pc_offset(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5668 | DCHECK(instr->HasEnvironment()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5669 | LEnvironment* env = instr->environment(); |
| 5670 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 5671 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5672 | } |
| 5673 | |
| 5674 | |
| 5675 | void LCodeGen::DoDeoptimize(LDeoptimize* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5676 | Deoptimizer::BailoutType type = instr->hydrogen()->type(); |
| 5677 | // TODO(danno): Stubs expect all deopts to be lazy for historical reasons (the |
| 5678 | // needed return address), even though the implementation of LAZY and EAGER is |
| 5679 | // now identical. When LAZY is eventually completely folded into EAGER, remove |
| 5680 | // the special case below. |
| 5681 | if (info()->IsStub() && type == Deoptimizer::EAGER) { |
| 5682 | type = Deoptimizer::LAZY; |
| 5683 | } |
| 5684 | DeoptimizeIf(no_condition, instr, instr->hydrogen()->reason(), type); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5685 | } |
| 5686 | |
| 5687 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5688 | void LCodeGen::DoDummy(LDummy* instr) { |
| 5689 | // Nothing to see here, move on! |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 5690 | } |
| 5691 | |
| 5692 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5693 | void LCodeGen::DoDummyUse(LDummyUse* instr) { |
| 5694 | // Nothing to see here, move on! |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5695 | } |
| 5696 | |
| 5697 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5698 | void LCodeGen::DoDeferredStackCheck(LStackCheck* instr) { |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5699 | PushSafepointRegistersScope scope(this); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5700 | __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5701 | __ CallRuntimeSaveDoubles(Runtime::kStackGuard); |
| 5702 | RecordSafepointWithLazyDeopt(instr, RECORD_SAFEPOINT_WITH_REGISTERS, 0); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5703 | DCHECK(instr->HasEnvironment()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5704 | LEnvironment* env = instr->environment(); |
| 5705 | safepoints_.RecordLazyDeoptimizationIndex(env->deoptimization_index()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5706 | } |
| 5707 | |
| 5708 | |
| 5709 | void LCodeGen::DoStackCheck(LStackCheck* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5710 | class DeferredStackCheck FINAL : public LDeferredCode { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5711 | public: |
| 5712 | DeferredStackCheck(LCodeGen* codegen, LStackCheck* instr) |
| 5713 | : LDeferredCode(codegen), instr_(instr) { } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5714 | void Generate() OVERRIDE { codegen()->DoDeferredStackCheck(instr_); } |
| 5715 | LInstruction* instr() OVERRIDE { return instr_; } |
| 5716 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5717 | private: |
| 5718 | LStackCheck* instr_; |
| 5719 | }; |
| 5720 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5721 | DCHECK(instr->HasEnvironment()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5722 | LEnvironment* env = instr->environment(); |
| 5723 | // There is no LLazyBailout instruction for stack-checks. We have to |
| 5724 | // prepare for lazy deoptimization explicitly here. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5725 | if (instr->hydrogen()->is_function_entry()) { |
| 5726 | // Perform stack overflow check. |
| 5727 | Label done; |
| 5728 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 5729 | __ j(above_equal, &done, Label::kNear); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5730 | |
| 5731 | DCHECK(instr->context()->IsRegister()); |
| 5732 | DCHECK(ToRegister(instr->context()).is(rsi)); |
| 5733 | CallCode(isolate()->builtins()->StackCheck(), |
| 5734 | RelocInfo::CODE_TARGET, |
| 5735 | instr); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5736 | __ bind(&done); |
| 5737 | } else { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5738 | DCHECK(instr->hydrogen()->is_backwards_branch()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5739 | // Perform stack overflow check if this goto needs it before jumping. |
| 5740 | DeferredStackCheck* deferred_stack_check = |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5741 | new(zone()) DeferredStackCheck(this, instr); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5742 | __ CompareRoot(rsp, Heap::kStackLimitRootIndex); |
| 5743 | __ j(below, deferred_stack_check->entry()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5744 | EnsureSpaceForLazyDeopt(Deoptimizer::patch_size()); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5745 | __ bind(instr->done_label()); |
| 5746 | deferred_stack_check->SetExit(instr->done_label()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5747 | RegisterEnvironmentForDeoptimization(env, Safepoint::kLazyDeopt); |
| 5748 | // Don't record a deoptimization index for the safepoint here. |
| 5749 | // This will be done explicitly when emitting call and the safepoint in |
| 5750 | // the deferred code. |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 5751 | } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5752 | } |
| 5753 | |
| 5754 | |
| 5755 | void LCodeGen::DoOsrEntry(LOsrEntry* instr) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5756 | // This is a pseudo-instruction that ensures that the environment here is |
| 5757 | // properly registered for deoptimization and records the assembler's PC |
| 5758 | // offset. |
| 5759 | LEnvironment* environment = instr->environment(); |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 5760 | |
| 5761 | // If the environment were already registered, we would have no way of |
| 5762 | // backpatching it with the spill slot operands. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5763 | DCHECK(!environment->HasBeenRegistered()); |
Ben Murdoch | 2b4ba11 | 2012-01-20 14:57:15 +0000 | [diff] [blame] | 5764 | RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5765 | |
| 5766 | GenerateOsrPrologue(); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5767 | } |
| 5768 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5769 | |
| 5770 | void LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5771 | DCHECK(ToRegister(instr->context()).is(rsi)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5772 | __ CompareRoot(rax, Heap::kUndefinedValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5773 | DeoptimizeIf(equal, instr, "undefined"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5774 | |
| 5775 | Register null_value = rdi; |
| 5776 | __ LoadRoot(null_value, Heap::kNullValueRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5777 | __ cmpp(rax, null_value); |
| 5778 | DeoptimizeIf(equal, instr, "null"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5779 | |
| 5780 | Condition cc = masm()->CheckSmi(rax); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5781 | DeoptimizeIf(cc, instr, "Smi"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5782 | |
| 5783 | STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
| 5784 | __ CmpObjectType(rax, LAST_JS_PROXY_TYPE, rcx); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5785 | DeoptimizeIf(below_equal, instr, "wrong instance type"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5786 | |
| 5787 | Label use_cache, call_runtime; |
| 5788 | __ CheckEnumCache(null_value, &call_runtime); |
| 5789 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5790 | __ movp(rax, FieldOperand(rax, HeapObject::kMapOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5791 | __ jmp(&use_cache, Label::kNear); |
| 5792 | |
| 5793 | // Get the set of properties to enumerate. |
| 5794 | __ bind(&call_runtime); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5795 | __ Push(rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5796 | CallRuntime(Runtime::kGetPropertyNamesFast, 1, instr); |
| 5797 | |
| 5798 | __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset), |
| 5799 | Heap::kMetaMapRootIndex); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5800 | DeoptimizeIf(not_equal, instr, "wrong map"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5801 | __ bind(&use_cache); |
| 5802 | } |
| 5803 | |
| 5804 | |
| 5805 | void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) { |
| 5806 | Register map = ToRegister(instr->map()); |
| 5807 | Register result = ToRegister(instr->result()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5808 | Label load_cache, done; |
| 5809 | __ EnumLength(result, map); |
| 5810 | __ Cmp(result, Smi::FromInt(0)); |
| 5811 | __ j(not_equal, &load_cache, Label::kNear); |
| 5812 | __ LoadRoot(result, Heap::kEmptyFixedArrayRootIndex); |
| 5813 | __ jmp(&done, Label::kNear); |
| 5814 | __ bind(&load_cache); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5815 | __ LoadInstanceDescriptors(map, result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5816 | __ movp(result, |
| 5817 | FieldOperand(result, DescriptorArray::kEnumCacheOffset)); |
| 5818 | __ movp(result, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5819 | FieldOperand(result, FixedArray::SizeFor(instr->idx()))); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5820 | __ bind(&done); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5821 | Condition cc = masm()->CheckSmi(result); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5822 | DeoptimizeIf(cc, instr, "no cache"); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5823 | } |
| 5824 | |
| 5825 | |
| 5826 | void LCodeGen::DoCheckMapValue(LCheckMapValue* instr) { |
| 5827 | Register object = ToRegister(instr->value()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5828 | __ cmpp(ToRegister(instr->map()), |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5829 | FieldOperand(object, HeapObject::kMapOffset)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5830 | DeoptimizeIf(not_equal, instr, "wrong map"); |
| 5831 | } |
| 5832 | |
| 5833 | |
| 5834 | void LCodeGen::DoDeferredLoadMutableDouble(LLoadFieldByIndex* instr, |
| 5835 | Register object, |
| 5836 | Register index) { |
| 5837 | PushSafepointRegistersScope scope(this); |
| 5838 | __ Push(object); |
| 5839 | __ Push(index); |
| 5840 | __ xorp(rsi, rsi); |
| 5841 | __ CallRuntimeSaveDoubles(Runtime::kLoadMutableDouble); |
| 5842 | RecordSafepointWithRegisters( |
| 5843 | instr->pointer_map(), 2, Safepoint::kNoLazyDeopt); |
| 5844 | __ StoreToSafepointRegisterSlot(object, rax); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5845 | } |
| 5846 | |
| 5847 | |
| 5848 | void LCodeGen::DoLoadFieldByIndex(LLoadFieldByIndex* instr) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5849 | class DeferredLoadMutableDouble FINAL : public LDeferredCode { |
| 5850 | public: |
| 5851 | DeferredLoadMutableDouble(LCodeGen* codegen, |
| 5852 | LLoadFieldByIndex* instr, |
| 5853 | Register object, |
| 5854 | Register index) |
| 5855 | : LDeferredCode(codegen), |
| 5856 | instr_(instr), |
| 5857 | object_(object), |
| 5858 | index_(index) { |
| 5859 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5860 | void Generate() OVERRIDE { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5861 | codegen()->DoDeferredLoadMutableDouble(instr_, object_, index_); |
| 5862 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 5863 | LInstruction* instr() OVERRIDE { return instr_; } |
| 5864 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5865 | private: |
| 5866 | LLoadFieldByIndex* instr_; |
| 5867 | Register object_; |
| 5868 | Register index_; |
| 5869 | }; |
| 5870 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5871 | Register object = ToRegister(instr->object()); |
| 5872 | Register index = ToRegister(instr->index()); |
| 5873 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5874 | DeferredLoadMutableDouble* deferred; |
| 5875 | deferred = new(zone()) DeferredLoadMutableDouble(this, instr, object, index); |
| 5876 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5877 | Label out_of_object, done; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5878 | __ Move(kScratchRegister, Smi::FromInt(1)); |
| 5879 | __ testp(index, kScratchRegister); |
| 5880 | __ j(not_zero, deferred->entry()); |
| 5881 | |
| 5882 | __ sarp(index, Immediate(1)); |
| 5883 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5884 | __ SmiToInteger32(index, index); |
| 5885 | __ cmpl(index, Immediate(0)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5886 | __ j(less, &out_of_object, Label::kNear); |
| 5887 | __ movp(object, FieldOperand(object, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5888 | index, |
| 5889 | times_pointer_size, |
| 5890 | JSObject::kHeaderSize)); |
| 5891 | __ jmp(&done, Label::kNear); |
| 5892 | |
| 5893 | __ bind(&out_of_object); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5894 | __ movp(object, FieldOperand(object, JSObject::kPropertiesOffset)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5895 | __ negl(index); |
| 5896 | // Index is now equal to out of object property index plus 1. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5897 | __ movp(object, FieldOperand(object, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5898 | index, |
| 5899 | times_pointer_size, |
| 5900 | FixedArray::kHeaderSize - kPointerSize)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5901 | __ bind(deferred->exit()); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 5902 | __ bind(&done); |
| 5903 | } |
| 5904 | |
| 5905 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 5906 | void LCodeGen::DoStoreFrameContext(LStoreFrameContext* instr) { |
| 5907 | Register context = ToRegister(instr->context()); |
| 5908 | __ movp(Operand(rbp, StandardFrameConstants::kContextOffset), context); |
| 5909 | } |
| 5910 | |
| 5911 | |
| 5912 | void LCodeGen::DoAllocateBlockContext(LAllocateBlockContext* instr) { |
| 5913 | Handle<ScopeInfo> scope_info = instr->scope_info(); |
| 5914 | __ Push(scope_info); |
| 5915 | __ Push(ToRegister(instr->function())); |
| 5916 | CallRuntime(Runtime::kPushBlockContext, 2, instr); |
| 5917 | RecordSafepoint(Safepoint::kNoLazyDeopt); |
| 5918 | } |
| 5919 | |
| 5920 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 5921 | #undef __ |
| 5922 | |
| 5923 | } } // namespace v8::internal |
| 5924 | |
| 5925 | #endif // V8_TARGET_ARCH_X64 |