[turbofan] Add new Float32Abs and Float64Abs operators.

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/codegen.h"
@@ skipping 4927 matching lines @@
       input = bit_cast<uint64_t>(*i);
       uint64_t expected = (input & ~(V8_UINT64_C(0xFFFFFFFF) << 32)) |
                           (static_cast<uint64_t>(bit_cast<uint32_t>(*j)) << 32);
       CHECK_EQ(0, m.Call(*j));
       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);
+  }
+}
+
+
 static double two_30 = 1 << 30;             // 2^30 is a smi boundary.
 static double two_52 = two_30 * (1 << 22);  // 2^52 is a precision boundary.
 static double kValues[] = {0.1,
                            0.2,
                            0.49999999999999994,
                            0.5,
                            0.7,
                            1.0 - std::numeric_limits<double>::epsilon(),
                            -0.1,
                            -0.49999999999999994,
@@ skipping 151 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