Version 4.6.85.21 (cherry-pick)

src/arm64/builtins-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/arm64/frames-arm64.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
@@ skipping 1452 matching lines @@
           RelocInfo::CODE_TARGET);
   __ Bind(&dont_adapt_args);
 
   __ Ldr(x3, FieldMemOperand(function, JSFunction::kCodeEntryOffset));
   ParameterCount expected(0);
   __ InvokeCode(x3, expected, expected, JUMP_FUNCTION, NullCallWrapper());
 }
 
 
 static void Generate_PushAppliedArguments(MacroAssembler* masm,
+                                          const int vectorOffset,
                                           const int argumentsOffset,
                                           const int indexOffset,
                                           const int limitOffset) {
   Label entry, loop;
   Register receiver = LoadDescriptor::ReceiverRegister();
   Register key = LoadDescriptor::NameRegister();
   Register slot = LoadDescriptor::SlotRegister();
   Register vector = LoadWithVectorDescriptor::VectorRegister();
 
   __ Ldr(key, MemOperand(fp, indexOffset));
   __ B(&entry);
 
   // Load the current argument from the arguments array.
   __ Bind(&loop);
   __ Ldr(receiver, MemOperand(fp, argumentsOffset));
 
   // Use inline caching to speed up access to arguments.
-  Code::Kind kinds[] = {Code::KEYED_LOAD_IC};
-  FeedbackVectorSpec spec(0, 1, kinds);
-  Handle<TypeFeedbackVector> feedback_vector =
-      masm->isolate()->factory()->NewTypeFeedbackVector(&spec);
-  int index = feedback_vector->GetIndex(FeedbackVectorICSlot(0));
-  __ Mov(slot, Smi::FromInt(index));
-  __ Mov(vector, feedback_vector);
+  int slot_index = TypeFeedbackVector::PushAppliedArgumentsIndex();
+  __ Mov(slot, Operand(Smi::FromInt(slot_index)));
+  __ Ldr(vector, MemOperand(fp, vectorOffset));
   Handle<Code> ic =
       KeyedLoadICStub(masm->isolate(), LoadICState(kNoExtraICState)).GetCode();
   __ Call(ic, RelocInfo::CODE_TARGET);
 
   // Push the nth argument.
   __ Push(x0);
 
   __ Ldr(key, MemOperand(fp, indexOffset));
   __ Add(key, key, Smi::FromInt(1));
   __ Str(key, MemOperand(fp, indexOffset));
@@ skipping 14 matching lines @@
 static void Generate_ApplyHelper(MacroAssembler* masm, bool targetIsArgument) {
   const int kFormalParameters = targetIsArgument ? 3 : 2;
   const int kStackSize = kFormalParameters + 1;
 
   {
     FrameScope frame_scope(masm, StackFrame::INTERNAL);
 
     const int kArgumentsOffset =  kFPOnStackSize + kPCOnStackSize;
     const int kReceiverOffset = kArgumentsOffset + kPointerSize;
     const int kFunctionOffset = kReceiverOffset + kPointerSize;
-    const int kIndexOffset    =
-        StandardFrameConstants::kExpressionsOffset - (2 * kPointerSize);
-    const int kLimitOffset    =
-        StandardFrameConstants::kExpressionsOffset - (1 * kPointerSize);
+    const int kVectorOffset =
+        InternalFrameConstants::kCodeOffset - 1 * kPointerSize;
+    const int kIndexOffset = kVectorOffset - (2 * kPointerSize);
+    const int kLimitOffset = kVectorOffset - (1 * kPointerSize);
 
     Register args = x12;
     Register receiver = x14;
     Register function = x15;
+    Register apply_function = x1;
+
+    // Push the vector.
+    __ Ldr(
+        apply_function,
+        FieldMemOperand(apply_function, JSFunction::kSharedFunctionInfoOffset));
+    __ Ldr(apply_function,
+           FieldMemOperand(apply_function,
+                           SharedFunctionInfo::kFeedbackVectorOffset));
+    __ Push(apply_function);
 
     // Get the length of the arguments via a builtin call.
     __ Ldr(function, MemOperand(fp, kFunctionOffset));
     __ Ldr(args, MemOperand(fp, kArgumentsOffset));
     __ Push(function, args);
     if (targetIsArgument) {
       __ InvokeBuiltin(Builtins::REFLECT_APPLY_PREPARE, CALL_FUNCTION);
     } else {
       __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_FUNCTION);
     }
@@ skipping 48 matching lines @@
 
     __ Bind(&use_global_proxy);
     __ Ldr(x10, GlobalObjectMemOperand());
     __ Ldr(receiver, FieldMemOperand(x10, GlobalObject::kGlobalProxyOffset));
 
     // Push the receiver
     __ Bind(&push_receiver);
     __ Push(receiver);
 
     // Copy all arguments from the array to the stack.
-    Generate_PushAppliedArguments(
-        masm, kArgumentsOffset, kIndexOffset, kLimitOffset);
+    Generate_PushAppliedArguments(masm, kVectorOffset, kArgumentsOffset,
+                                  kIndexOffset, kLimitOffset);
 
     // At the end of the loop, the number of arguments is stored in 'current',
     // represented as a smi.
 
     function = x1;  // From now on we want the function to be kept in x1;
     __ Ldr(function, MemOperand(fp, kFunctionOffset));
 
     // Call the function.
     Label call_proxy;
     ParameterCount actual(x0);
@@ skipping 22 matching lines @@
 static void Generate_ConstructHelper(MacroAssembler* masm) {
   const int kFormalParameters = 3;
   const int kStackSize = kFormalParameters + 1;
 
   {
     FrameScope frame_scope(masm, StackFrame::INTERNAL);
 
     const int kNewTargetOffset = kFPOnStackSize + kPCOnStackSize;
     const int kArgumentsOffset =  kNewTargetOffset + kPointerSize;
     const int kFunctionOffset = kArgumentsOffset + kPointerSize;
-
-    const int kIndexOffset    =
-        StandardFrameConstants::kExpressionsOffset - (2 * kPointerSize);
-    const int kLimitOffset    =
-        StandardFrameConstants::kExpressionsOffset - (1 * kPointerSize);
+    const int kVectorOffset =
+        InternalFrameConstants::kCodeOffset - 1 * kPointerSize;
+    const int kIndexOffset = kVectorOffset - (2 * kPointerSize);
+    const int kLimitOffset = kVectorOffset - (1 * kPointerSize);
 
     // Is x11 safe to use?
     Register newTarget = x11;
     Register args = x12;
     Register function = x15;
+    Register construct_function = x1;
+
+    // Push the vector.
+    __ Ldr(construct_function,
+           FieldMemOperand(construct_function,
+                           JSFunction::kSharedFunctionInfoOffset));
+    __ Ldr(construct_function,
+           FieldMemOperand(construct_function,
+                           SharedFunctionInfo::kFeedbackVectorOffset));
+    __ Push(construct_function);
 
     // If newTarget is not supplied, set it to constructor
     Label validate_arguments;
     __ Ldr(x0, MemOperand(fp, kNewTargetOffset));
     __ CompareRoot(x0, Heap::kUndefinedValueRootIndex);
     __ B(ne, &validate_arguments);
     __ Ldr(x0, MemOperand(fp, kFunctionOffset));
     __ Str(x0, MemOperand(fp, kNewTargetOffset));
 
     // Validate arguments
     __ Bind(&validate_arguments);
     __ Ldr(function, MemOperand(fp, kFunctionOffset));
     __ Ldr(args, MemOperand(fp, kArgumentsOffset));
     __ Ldr(newTarget, MemOperand(fp, kNewTargetOffset));
     __ Push(function, args, newTarget);
     __ InvokeBuiltin(Builtins::REFLECT_CONSTRUCT_PREPARE, CALL_FUNCTION);
     Register argc = x0;
 
     Generate_CheckStackOverflow(masm, kFunctionOffset, argc, kArgcIsSmiTagged);
 
     // Push current limit and index & constructor function as callee.
     __ Mov(x1, 0);  // Initial index.
     __ Push(argc, x1, function);
 
     // Copy all arguments from the array to the stack.
-    Generate_PushAppliedArguments(
-        masm, kArgumentsOffset, kIndexOffset, kLimitOffset);
+    Generate_PushAppliedArguments(masm, kVectorOffset, kArgumentsOffset,
+                                  kIndexOffset, kLimitOffset);
 
     // Use undefined feedback vector
     __ LoadRoot(x2, Heap::kUndefinedValueRootIndex);
     __ Ldr(x1, MemOperand(fp, kFunctionOffset));
     __ Ldr(x4, MemOperand(fp, kNewTargetOffset));
 
     // Call the function.
     CallConstructStub stub(masm->isolate(), SUPER_CONSTRUCTOR_CALL);
     __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
 
@@ skipping 233 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM