A64: Synchronize with r17807.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 264e3001d8cf9ab7805cb0e79429b266f85e1aa3..f06cc5b700f95afd82c97cab5b60a2c1660a6e33 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -118,6 +118,17 @@ void KeyedLoadFastElementStub::InitializeInterfaceDescriptor(
 }
 
 
+void KeyedLoadDictionaryElementStub::InitializeInterfaceDescriptor(
+    Isolate* isolate,
+    CodeStubInterfaceDescriptor* descriptor) {
+  static Register registers[] = { edx, ecx };
+  descriptor->register_param_count_ = 2;
+  descriptor->register_params_ = registers;
+  descriptor->deoptimization_handler_ =
+      FUNCTION_ADDR(KeyedLoadIC_MissFromStubFailure);
+}
+
+
 void LoadFieldStub::InitializeInterfaceDescriptor(
     Isolate* isolate,
     CodeStubInterfaceDescriptor* descriptor) {
@@ -138,6 +149,19 @@ void KeyedLoadFieldStub::InitializeInterfaceDescriptor(
 }
 
 
+void KeyedArrayCallStub::InitializeInterfaceDescriptor(
+    Isolate* isolate,
+    CodeStubInterfaceDescriptor* descriptor) {
+  static Register registers[] = { ecx };
+  descriptor->register_param_count_ = 1;
+  descriptor->register_params_ = registers;
+  descriptor->continuation_type_ = TAIL_CALL_CONTINUATION;
+  descriptor->handler_arguments_mode_ = PASS_ARGUMENTS;
+  descriptor->deoptimization_handler_ =
+      FUNCTION_ADDR(KeyedCallIC_MissFromStubFailure);
+}
+
+
 void KeyedStoreFastElementStub::InitializeInterfaceDescriptor(
     Isolate* isolate,
     CodeStubInterfaceDescriptor* descriptor) {
@@ -168,15 +192,21 @@ static void InitializeArrayConstructorDescriptor(
   // eax -- number of arguments
   // edi -- function
   // ebx -- type info cell with elements kind
-  static Register registers[] = { edi, ebx };
-  descriptor->register_param_count_ = 2;
+  static Register registers_variable_args[] = { edi, ebx, eax };
+  static Register registers_no_args[] = { edi, ebx };
 
-  if (constant_stack_parameter_count != 0) {
+  if (constant_stack_parameter_count == 0) {
+    descriptor->register_param_count_ = 2;
+    descriptor->register_params_ = registers_no_args;
+  } else {
     // stack param count needs (constructor pointer, and single argument)
+    descriptor->handler_arguments_mode_ = PASS_ARGUMENTS;
     descriptor->stack_parameter_count_ = eax;
+    descriptor->register_param_count_ = 3;
+    descriptor->register_params_ = registers_variable_args;
   }
+
   descriptor->hint_stack_parameter_count_ = constant_stack_parameter_count;
-  descriptor->register_params_ = registers;
   descriptor->function_mode_ = JS_FUNCTION_STUB_MODE;
   descriptor->deoptimization_handler_ =
       Runtime::FunctionForId(Runtime::kArrayConstructor)->entry;
@@ -190,15 +220,21 @@ static void InitializeInternalArrayConstructorDescriptor(
   // register state
   // eax -- number of arguments
   // edi -- constructor function
-  static Register registers[] = { edi };
-  descriptor->register_param_count_ = 1;
+  static Register registers_variable_args[] = { edi, eax };
+  static Register registers_no_args[] = { edi };
 
-  if (constant_stack_parameter_count != 0) {
+  if (constant_stack_parameter_count == 0) {
+    descriptor->register_param_count_ = 1;
+    descriptor->register_params_ = registers_no_args;
+  } else {
     // stack param count needs (constructor pointer, and single argument)
+    descriptor->handler_arguments_mode_ = PASS_ARGUMENTS;
     descriptor->stack_parameter_count_ = eax;
+    descriptor->register_param_count_ = 2;
+    descriptor->register_params_ = registers_variable_args;
   }
+
   descriptor->hint_stack_parameter_count_ = constant_stack_parameter_count;
-  descriptor->register_params_ = registers;
   descriptor->function_mode_ = JS_FUNCTION_STUB_MODE;
   descriptor->deoptimization_handler_ =
       Runtime::FunctionForId(Runtime::kInternalArrayConstructor)->entry;
@@ -5647,6 +5683,24 @@ void StubFailureTrampolineStub::Generate(MacroAssembler* masm) {
 }
 
 
+void StubFailureTailCallTrampolineStub::Generate(MacroAssembler* masm) {
+  CEntryStub ces(1, fp_registers_ ? kSaveFPRegs : kDontSaveFPRegs);
+  __ call(ces.GetCode(masm->isolate()), RelocInfo::CODE_TARGET);
+  __ mov(edi, eax);
+  int parameter_count_offset =
+      StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset;
+  __ mov(eax, MemOperand(ebp, parameter_count_offset));
+  // The parameter count above includes the receiver for the arguments passed to
+  // the deoptimization handler. Subtract the receiver for the parameter count
+  // for the call.
+  __ sub(eax, Immediate(1));
+  masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE);
+  ParameterCount argument_count(eax);
+  __ InvokeFunction(
+      edi, argument_count, JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD);
+}
+
+
 void ProfileEntryHookStub::MaybeCallEntryHook(MacroAssembler* masm) {
   if (masm->isolate()->function_entry_hook() != NULL) {
     // It's always safe to call the entry hook stub, as the hook itself
@@ -5773,10 +5827,12 @@ static void CreateArrayDispatchOneArgument(MacroAssembler* masm,
       __ Assert(equal, kExpectedAllocationSiteInCell);
     }
 
-    // Save the resulting elements kind in type info
-    __ SmiTag(edx);
-    __ mov(FieldOperand(ecx, AllocationSite::kTransitionInfoOffset), edx);
-    __ SmiUntag(edx);
+    // Save the resulting elements kind in type info. We can't just store r3
+    // in the AllocationSite::transition_info field because elements kind is
+    // restricted to a portion of the field...upper bits need to be left alone.
+    STATIC_ASSERT(AllocationSite::ElementsKindBits::kShift == 0);
+    __ add(FieldOperand(ecx, AllocationSite::kTransitionInfoOffset),
+           Immediate(Smi::FromInt(kFastElementsKindPackedToHoley)));
 
     __ bind(&normal_sequence);
     int last_index = GetSequenceIndexFromFastElementsKind(
@@ -5917,8 +5973,11 @@ void ArrayConstructorStub::Generate(MacroAssembler* masm) {
       masm->isolate()->factory()->allocation_site_map()));
   __ j(not_equal, &no_info);
 
+  // Only look at the lower 16 bits of the transition info.
   __ mov(edx, FieldOperand(edx, AllocationSite::kTransitionInfoOffset));
   __ SmiUntag(edx);
+  STATIC_ASSERT(AllocationSite::ElementsKindBits::kShift == 0);
+  __ and_(edx, Immediate(AllocationSite::ElementsKindBits::kMask));
   GenerateDispatchToArrayStub(masm, DONT_OVERRIDE);
 
   __ bind(&no_info);