[runtime] Replace COMPARE/COMPARE_STRONG with proper Object::Compare.

src/runtime/runtime-numbers.cc

 // Copyright 2014 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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 
-
-#ifndef _STLP_VENDOR_CSTD
-// STLPort doesn't import isless into the std namespace.
-using std::isless;
-#endif
-
 namespace v8 {
 namespace internal {
 
 RUNTIME_FUNCTION(Runtime_NumberToRadixString) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
   CONVERT_SMI_ARG_CHECKED(radix, 1);
   RUNTIME_ASSERT(2 <= radix && radix <= 36);
 
   // Fast case where the result is a one character string.
@@ skipping 197 matching lines @@
 
   // We rely on implementation-defined behavior below, but at least not on
   // undefined behavior.
   CONVERT_NUMBER_CHECKED(uint32_t, x, Int32, args[0]);
   CONVERT_NUMBER_CHECKED(uint32_t, y, Int32, args[1]);
   int32_t product = static_cast<int32_t>(x * y);
   return *isolate->factory()->NewNumberFromInt(product);
 }
 
 
-RUNTIME_FUNCTION(Runtime_NumberCompare) {
-  SealHandleScope shs(isolate);
-  DCHECK(args.length() == 3);
-
-  CONVERT_DOUBLE_ARG_CHECKED(x, 0);
-  CONVERT_DOUBLE_ARG_CHECKED(y, 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, uncomparable_result, 2)
-  if (std::isnan(x) || std::isnan(y)) return *uncomparable_result;
-  if (x == y) return Smi::FromInt(EQUAL);
-  if (isless(x, y)) return Smi::FromInt(LESS);
-  return Smi::FromInt(GREATER);
-}
-
-
 // Compare two Smis as if they were converted to strings and then
 // compared lexicographically.
 RUNTIME_FUNCTION(Runtime_SmiLexicographicCompare) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 2);
   CONVERT_SMI_ARG_CHECKED(x_value, 0);
   CONVERT_SMI_ARG_CHECKED(y_value, 1);
 
   // If the integers are equal so are the string representations.
   if (x_value == y_value) return Smi::FromInt(EQUAL);
@@ skipping 79 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_GetRootNaN) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 0);
   return isolate->heap()->nan_value();
 }
 
 }  // namespace internal
 }  // namespace v8