[turbofan] Add backend support for load/store float32 values.

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 <functional>
 #include <limits>
 
 #include "src/base/bits.h"
 #include "src/compiler/generic-node-inl.h"
 #include "test/cctest/cctest.h"
@@ skipping 2733 matching lines @@
 
 
 TEST(RunLoadStore) {
   RunLoadStore<int8_t>(kMachInt8);
   RunLoadStore<uint8_t>(kMachUint8);
   RunLoadStore<int16_t>(kMachInt16);
   RunLoadStore<uint16_t>(kMachUint16);
   RunLoadStore<int32_t>(kMachInt32);
   RunLoadStore<uint32_t>(kMachUint32);
   RunLoadStore<void*>(kMachAnyTagged);
+  RunLoadStore<float>(kMachFloat32);
   RunLoadStore<double>(kMachFloat64);
 }
 
 
 TEST(RunFloat64Binop) {
   RawMachineAssemblerTester<int32_t> m;
   double result;
 
   Operator* ops[] = {m.machine()->Float64Add(), m.machine()->Float64Sub(),
                      m.machine()->Float64Mul(), m.machine()->Float64Div(),
@@ skipping 1551 matching lines @@
   RawMachineAssemblerTester<int32_t> m;
   m.Return(m.TruncateFloat64ToInt32(m.LoadFromPointer(&input, kMachFloat64)));
   for (size_t i = 0; i < ARRAY_SIZE(kValues); ++i) {
     input = kValues[i].from;
     uint64_t expected = static_cast<int64_t>(kValues[i].raw);
     CHECK_EQ(static_cast<int>(expected), m.Call());
   }
 }
 
 #endif  // V8_TURBOFAN_TARGET