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

src/arm/macro-assembler-arm.cc

 // Copyright 2012 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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
@@ skipping 2571 matching lines @@
 
 
 void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) {
   DCHECK(!target.is(r1));
   GetBuiltinFunction(r1, id);
   // Load the code entry point from the builtins object.
   ldr(target, FieldMemOperand(r1, 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::SetCounter(StatsCounter* counter, int value,
                                 Register scratch1, Register scratch2) {
   if (FLAG_native_code_counters && counter->Enabled()) {
     mov(scratch1, Operand(value));
     mov(scratch2, Operand(ExternalReference(counter)));
     str(scratch1, MemOperand(scratch2));
   }
 }
 
 
@@ skipping 1306 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM