[turbofan] Add operators for float32 support.

src/compiler/machine-operator.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/compiler/machine-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 
@@ skipping 79 matching lines @@
   V(Uint32LessThanOrEqual, Operator::kNoProperties, 2, 1)                     \
   V(Int64Add, Operator::kAssociative | Operator::kCommutative, 2, 1)          \
   V(Int64Sub, Operator::kNoProperties, 2, 1)                                  \
   V(Int64Mul, Operator::kAssociative | Operator::kCommutative, 2, 1)          \
   V(Int64Div, Operator::kNoProperties, 2, 1)                                  \
   V(Int64UDiv, Operator::kNoProperties, 2, 1)                                 \
   V(Int64Mod, Operator::kNoProperties, 2, 1)                                  \
   V(Int64UMod, Operator::kNoProperties, 2, 1)                                 \
   V(Int64LessThan, Operator::kNoProperties, 2, 1)                             \
   V(Int64LessThanOrEqual, Operator::kNoProperties, 2, 1)                      \
+  V(ChangeFloat32ToFloat64, Operator::kNoProperties, 1, 1)                    \
   V(ChangeFloat64ToInt32, Operator::kNoProperties, 1, 1)                      \
   V(ChangeFloat64ToUint32, Operator::kNoProperties, 1, 1)                     \
   V(ChangeInt32ToFloat64, Operator::kNoProperties, 1, 1)                      \
   V(ChangeInt32ToInt64, Operator::kNoProperties, 1, 1)                        \
   V(ChangeUint32ToFloat64, Operator::kNoProperties, 1, 1)                     \
   V(ChangeUint32ToUint64, Operator::kNoProperties, 1, 1)                      \
+  V(TruncateFloat64ToFloat32, Operator::kNoProperties, 1, 1)                  \
   V(TruncateFloat64ToInt32, Operator::kNoProperties, 1, 1)                    \
   V(TruncateInt64ToInt32, Operator::kNoProperties, 1, 1)                      \
   V(Float64Add, Operator::kCommutative, 2, 1)                                 \
   V(Float64Sub, Operator::kNoProperties, 2, 1)                                \
   V(Float64Mul, Operator::kCommutative, 2, 1)                                 \
   V(Float64Div, Operator::kNoProperties, 2, 1)                                \
   V(Float64Mod, Operator::kNoProperties, 2, 1)                                \
   V(Float64Equal, Operator::kCommutative, 2, 1)                               \
   V(Float64LessThan, Operator::kNoProperties, 2, 1)                           \
   V(Float64LessThanOrEqual, Operator::kNoProperties, 2, 1)
@@ skipping 116 matching lines @@
     default:
       break;
   }
   UNREACHABLE();
   return NULL;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8