[turbofan] Float32Abs and Float64Abs are supported by all backends.

test/cctest/compiler/test-run-machops.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 <cmath>
 #include <functional>
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/base/utils/random-number-generator.h"
@@ skipping 4932 matching lines @@
       CHECK_EQ(expected, result);
     }
   }
 }
 
 
 TEST(RunFloat32Abs) {
   float input = -1.0;
   float result = 0.0;
   RawMachineAssemblerTester<int32_t> m;
-  if (!m.machine()->HasFloat32Abs()) return;
   m.StoreToPointer(&result, kMachFloat32,
                    m.Float32Abs(m.LoadFromPointer(&input, kMachFloat32)));
   m.Return(m.Int32Constant(0));
   FOR_FLOAT32_INPUTS(i) {
     input = *i;
     float expected = std::abs(input);
     CHECK_EQ(0, m.Call());
     CheckFloatEq(expected, result);
   }
 }
 
 
 TEST(RunFloat64Abs) {
   double input = -1.0;
   double result = 0.0;
   RawMachineAssemblerTester<int32_t> m;
-  if (!m.machine()->HasFloat64Abs()) return;
   m.StoreToPointer(&result, kMachFloat64,
                    m.Float64Abs(m.LoadFromPointer(&input, kMachFloat64)));
   m.Return(m.Int32Constant(0));
   FOR_FLOAT64_INPUTS(i) {
     input = *i;
     double expected = std::abs(input);
     CHECK_EQ(0, m.Call());
     CheckDoubleEq(expected, result);
   }
 }
@@ skipping 163 matching lines @@
   m.Return(m.Int32Constant(0));
   for (size_t i = 0; i < arraysize(kValues); ++i) {
     input = kValues[i];
     CHECK_EQ(0, m.Call());
     double expected = round(kValues[i]);
     CHECK_EQ(expected, result);
   }
 }
 
 #endif  // V8_TURBOFAN_TARGET