Upgrade V8 to 5.1.281.57
Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index cdd7e34..9b0d706 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -120,8 +120,11 @@
MemOperand ToMemOperand(InstructionOperand* op) const {
DCHECK_NOT_NULL(op);
DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot());
- FrameOffset offset = frame_access_state()->GetFrameOffset(
- AllocatedOperand::cast(op)->index());
+ return SlotToMemOperand(AllocatedOperand::cast(op)->index());
+ }
+
+ MemOperand SlotToMemOperand(int slot) const {
+ FrameOffset offset = frame_access_state()->GetFrameOffset(slot);
return MemOperand(offset.from_stack_pointer() ? sp : fp, offset.offset());
}
};
@@ -221,7 +224,8 @@
value_(value),
scratch0_(scratch0),
scratch1_(scratch1),
- mode_(mode) {}
+ mode_(mode),
+ must_save_lr_(!gen->frame_access_state()->has_frame()) {}
void Generate() final {
if (mode_ > RecordWriteMode::kValueIsPointer) {
@@ -235,7 +239,7 @@
: OMIT_REMEMBERED_SET;
SaveFPRegsMode const save_fp_mode =
frame()->DidAllocateDoubleRegisters() ? kSaveFPRegs : kDontSaveFPRegs;
- if (!frame()->needs_frame()) {
+ if (must_save_lr_) {
// We need to save and restore ra if the frame was elided.
__ Push(ra);
}
@@ -243,7 +247,7 @@
remembered_set_action, save_fp_mode);
__ Addu(scratch1_, object_, index_);
__ CallStub(&stub);
- if (!frame()->needs_frame()) {
+ if (must_save_lr_) {
__ Pop(ra);
}
}
@@ -255,6 +259,7 @@
Register const scratch0_;
Register const scratch1_;
RecordWriteMode const mode_;
+ bool must_save_lr_;
};
@@ -467,6 +472,13 @@
__ bind(&done); \
}
+void CodeGenerator::AssembleDeconstructFrame() {
+ __ mov(sp, fp);
+ __ Pop(ra, fp);
+}
+
+void CodeGenerator::AssembleSetupStackPointer() {}
+
void CodeGenerator::AssembleDeconstructActivationRecord(int stack_param_delta) {
int sp_slot_delta = TailCallFrameStackSlotDelta(stack_param_delta);
if (sp_slot_delta > 0) {
@@ -482,20 +494,44 @@
__ Subu(sp, sp, Operand(-sp_slot_delta * kPointerSize));
frame_access_state()->IncreaseSPDelta(-sp_slot_delta);
}
- if (frame()->needs_frame()) {
+ if (frame_access_state()->has_frame()) {
__ lw(ra, MemOperand(fp, StandardFrameConstants::kCallerPCOffset));
__ lw(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
}
frame_access_state()->SetFrameAccessToSP();
}
+void CodeGenerator::AssemblePopArgumentsAdaptorFrame(Register args_reg,
+ Register scratch1,
+ Register scratch2,
+ Register scratch3) {
+ DCHECK(!AreAliased(args_reg, scratch1, scratch2, scratch3));
+ Label done;
+
+ // Check if current frame is an arguments adaptor frame.
+ __ lw(scratch1, MemOperand(fp, StandardFrameConstants::kContextOffset));
+ __ Branch(&done, ne, scratch1,
+ Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
+
+ // Load arguments count from current arguments adaptor frame (note, it
+ // does not include receiver).
+ Register caller_args_count_reg = scratch1;
+ __ lw(caller_args_count_reg,
+ MemOperand(fp, ArgumentsAdaptorFrameConstants::kLengthOffset));
+ __ SmiUntag(caller_args_count_reg);
+
+ ParameterCount callee_args_count(args_reg);
+ __ PrepareForTailCall(callee_args_count, caller_args_count_reg, scratch2,
+ scratch3);
+ __ bind(&done);
+}
// Assembles an instruction after register allocation, producing machine code.
void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
MipsOperandConverter i(this, instr);
InstructionCode opcode = instr->opcode();
-
- switch (ArchOpcodeField::decode(opcode)) {
+ ArchOpcode arch_opcode = ArchOpcodeField::decode(opcode);
+ switch (arch_opcode) {
case kArchCallCodeObject: {
EnsureSpaceForLazyDeopt();
if (instr->InputAt(0)->IsImmediate()) {
@@ -509,9 +545,15 @@
frame_access_state()->ClearSPDelta();
break;
}
+ case kArchTailCallCodeObjectFromJSFunction:
case kArchTailCallCodeObject: {
int stack_param_delta = i.InputInt32(instr->InputCount() - 1);
AssembleDeconstructActivationRecord(stack_param_delta);
+ if (arch_opcode == kArchTailCallCodeObjectFromJSFunction) {
+ AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister,
+ i.TempRegister(0), i.TempRegister(1),
+ i.TempRegister(2));
+ }
if (instr->InputAt(0)->IsImmediate()) {
__ Jump(Handle<Code>::cast(i.InputHeapObject(0)),
RelocInfo::CODE_TARGET);
@@ -537,6 +579,7 @@
frame_access_state()->ClearSPDelta();
break;
}
+ case kArchTailCallJSFunctionFromJSFunction:
case kArchTailCallJSFunction: {
Register func = i.InputRegister(0);
if (FLAG_debug_code) {
@@ -547,6 +590,11 @@
int stack_param_delta = i.InputInt32(instr->InputCount() - 1);
AssembleDeconstructActivationRecord(stack_param_delta);
+ if (arch_opcode == kArchTailCallJSFunctionFromJSFunction) {
+ AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister,
+ i.TempRegister(0), i.TempRegister(1),
+ i.TempRegister(2));
+ }
__ lw(at, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
__ Jump(at);
frame_access_state()->ClearSPDelta();
@@ -606,7 +654,7 @@
__ mov(i.OutputRegister(), fp);
break;
case kArchParentFramePointer:
- if (frame_access_state()->frame()->needs_frame()) {
+ if (frame_access_state()->has_frame()) {
__ lw(i.OutputRegister(), MemOperand(fp, 0));
} else {
__ mov(i.OutputRegister(), fp);
@@ -875,6 +923,14 @@
case kMipsCmpD:
// Psuedo-instruction used for FP cmp/branch. No opcode emitted here.
break;
+ case kMipsMulPair: {
+ __ Mulu(i.OutputRegister(1), i.OutputRegister(0), i.InputRegister(0),
+ i.InputRegister(2));
+ __ mul(kScratchReg, i.InputRegister(0), i.InputRegister(3));
+ __ mul(kScratchReg2, i.InputRegister(1), i.InputRegister(2));
+ __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg);
+ __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg2);
+ } break;
case kMipsAddD:
// TODO(plind): add special case: combine mult & add.
__ add_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
@@ -1525,17 +1581,16 @@
void CodeGenerator::AssemblePrologue() {
CallDescriptor* descriptor = linkage()->GetIncomingDescriptor();
int stack_shrink_slots = frame()->GetSpillSlotCount();
- if (descriptor->IsCFunctionCall()) {
- __ Push(ra, fp);
- __ mov(fp, sp);
- } else if (descriptor->IsJSFunctionCall()) {
- __ Prologue(this->info()->GeneratePreagedPrologue());
- } else if (frame()->needs_frame()) {
- __ StubPrologue();
- } else {
- frame()->SetElidedFrameSizeInSlots(0);
+ if (frame_access_state()->has_frame()) {
+ if (descriptor->IsCFunctionCall()) {
+ __ Push(ra, fp);
+ __ mov(fp, sp);
+ } else if (descriptor->IsJSFunctionCall()) {
+ __ Prologue(this->info()->GeneratePreagedPrologue());
+ } else {
+ __ StubPrologue(info()->GetOutputStackFrameType());
+ }
}
- frame_access_state()->SetFrameAccessToDefault();
if (info()->is_osr()) {
// TurboFan OSR-compiled functions cannot be entered directly.
@@ -1597,17 +1652,15 @@
}
if (descriptor->IsCFunctionCall()) {
- __ mov(sp, fp);
- __ Pop(ra, fp);
- } else if (frame()->needs_frame()) {
+ AssembleDeconstructFrame();
+ } else if (frame_access_state()->has_frame()) {
// Canonicalize JSFunction return sites for now.
if (return_label_.is_bound()) {
__ Branch(&return_label_);
return;
} else {
__ bind(&return_label_);
- __ mov(sp, fp);
- __ Pop(ra, fp);
+ AssembleDeconstructFrame();
}
}
if (pop_count != 0) {
@@ -1665,9 +1718,9 @@
case Constant::kHeapObject: {
Handle<HeapObject> src_object = src.ToHeapObject();
Heap::RootListIndex index;
- int offset;
- if (IsMaterializableFromFrame(src_object, &offset)) {
- __ lw(dst, MemOperand(fp, offset));
+ int slot;
+ if (IsMaterializableFromFrame(src_object, &slot)) {
+ __ lw(dst, g.SlotToMemOperand(slot));
} else if (IsMaterializableFromRoot(src_object, &index)) {
__ LoadRoot(dst, index);
} else {