[telemetry] Counter Cleanups

src/arm/code-stubs-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.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 877 matching lines @@
   // Test whether result is zero.  Bail out to check for subnormal result.
   // Due to subnormals, x^-y == (1/x)^y does not hold in all cases.
   __ VFPCompareAndSetFlags(double_result, 0.0);
   __ b(ne, &done);
   // double_exponent may not containe the exponent value if the input was a
   // smi.  We set it with exponent value before bailing out.
   __ vmov(single_scratch, exponent);
   __ vcvt_f64_s32(double_exponent, single_scratch);
 
   // Returning or bailing out.
-  Counters* counters = isolate()->counters();
   if (exponent_type() == ON_STACK) {
     // The arguments are still on the stack.
     __ bind(&call_runtime);
     __ TailCallRuntime(Runtime::kMathPowRT);
 
     // The stub is called from non-optimized code, which expects the result
     // as heap number in exponent.
     __ bind(&done);
     __ AllocateHeapNumber(
         heapnumber, scratch, scratch2, heapnumbermap, &call_runtime);
     __ vstr(double_result,
             FieldMemOperand(heapnumber, HeapNumber::kValueOffset));
     DCHECK(heapnumber.is(r0));
-    __ IncrementCounter(counters->math_pow(), 1, scratch, scratch2);
     __ Ret(2);
   } else {
     __ push(lr);
     {
       AllowExternalCallThatCantCauseGC scope(masm);
       __ PrepareCallCFunction(0, 2, scratch);
       __ MovToFloatParameters(double_base, double_exponent);
       __ CallCFunction(
           ExternalReference::power_double_double_function(isolate()),
           0, 2);
     }
     __ pop(lr);
     __ MovFromFloatResult(double_result);
 
     __ bind(&done);
-    __ IncrementCounter(counters->math_pow(), 1, scratch, scratch2);
     __ Ret();
   }
 }
 
 
 bool CEntryStub::NeedsImmovableCode() {
   return true;
 }
 
 
@@ skipping 4505 matching lines @@
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM