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

test/compiler-unittests/ia32/instruction-selector-ia32-unittest.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 "test/compiler-unittests/instruction-selector-unittest.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 82 matching lines @@
 }
 
 
 static const MemoryAccess kMemoryAccesses[] = {
     {kMachInt8, kIA32Movsxbl, kIA32Movb},
     {kMachUint8, kIA32Movzxbl, kIA32Movb},
     {kMachInt16, kIA32Movsxwl, kIA32Movw},
     {kMachUint16, kIA32Movzxwl, kIA32Movw},
     {kMachInt32, kIA32Movl, kIA32Movl},
     {kMachUint32, kIA32Movl, kIA32Movl},
+    {kMachFloat32, kIA32Movss, kIA32Movss},
     {kMachFloat64, kIA32Movsd, kIA32Movsd}};
 
 }  // namespace
 
 
 typedef InstructionSelectorTestWithParam<MemoryAccess>
     InstructionSelectorMemoryAccessTest;
 
 
 TEST_P(InstructionSelectorMemoryAccessTest, LoadWithParameters) {
@@ skipping 88 matching lines @@
 }
 
 
 INSTANTIATE_TEST_CASE_P(InstructionSelectorTest,
                         InstructionSelectorMemoryAccessTest,
                         ::testing::ValuesIn(kMemoryAccesses));
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8