Collect type feedback on result of Math.[round|ceil|floor]

src/arm64/macro-assembler-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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 1671 matching lines @@
 void MacroAssembler::GetBuiltinEntry(Register target,
                                      Register function,
                                      Builtins::JavaScript id) {
   DCHECK(!AreAliased(target, function));
   GetBuiltinFunction(function, id);
   // Load the code entry point from the builtins object.
   Ldr(target, FieldMemOperand(function, JSFunction::kCodeEntryOffset));
 }
 
 
+void MacroAssembler::BranchIfNotBuiltin(Register function, Register temp,
+                                        BuiltinFunctionId id, Label* miss) {
+  Ldr(temp, FieldMemOperand(function, JSFunction::kSharedFunctionInfoOffset));
+  Ldr(temp, FieldMemOperand(temp, SharedFunctionInfo::kFunctionDataOffset));
+  Cmp(temp, Operand(Smi::FromInt(id)));
+  B(ne, miss);
+}
+
+
 void MacroAssembler::InvokeBuiltin(Builtins::JavaScript id,
                                    InvokeFlag flag,
                                    const CallWrapper& call_wrapper) {
   ASM_LOCATION("MacroAssembler::InvokeBuiltin");
   // You can't call a builtin without a valid frame.
   DCHECK(flag == JUMP_FUNCTION || has_frame());
 
   // Get the builtin entry in x2 and setup the function object in x1.
   GetBuiltinEntry(x2, x1, id);
   if (flag == CALL_FUNCTION) {
@@ skipping 3443 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64