[turbofan] Remove the FloatXXSubPreserveNan operators.

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 142 matching lines @@
   V(ImpossibleToBit, Operator::kNoProperties, 1, 0, 1)                       \
   V(TruncateFloat64ToFloat32, Operator::kNoProperties, 1, 0, 1)              \
   V(TruncateInt64ToInt32, Operator::kNoProperties, 1, 0, 1)                  \
   V(BitcastFloat32ToInt32, Operator::kNoProperties, 1, 0, 1)                 \
   V(BitcastFloat64ToInt64, Operator::kNoProperties, 1, 0, 1)                 \
   V(BitcastInt32ToFloat32, Operator::kNoProperties, 1, 0, 1)                 \
   V(BitcastInt64ToFloat64, Operator::kNoProperties, 1, 0, 1)                 \
   V(Float32Abs, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float32Add, Operator::kCommutative, 2, 0, 1)                             \
   V(Float32Sub, Operator::kNoProperties, 2, 0, 1)                            \
-  V(Float32SubPreserveNan, Operator::kNoProperties, 2, 0, 1)                 \
   V(Float32Mul, Operator::kCommutative, 2, 0, 1)                             \
   V(Float32Div, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float32Neg, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float32Sqrt, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Abs, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Acos, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Acosh, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Asin, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Asinh, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Atan, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Atan2, Operator::kNoProperties, 2, 0, 1)                          \
   V(Float64Atanh, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Cbrt, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Cos, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Cosh, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Exp, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Expm1, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Log, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Log1p, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Log2, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Log10, Operator::kNoProperties, 1, 0, 1)                          \
   V(Float64Max, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float64Min, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float64Neg, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Add, Operator::kCommutative, 2, 0, 1)                             \
   V(Float64Sub, Operator::kNoProperties, 2, 0, 1)                            \
-  V(Float64SubPreserveNan, Operator::kNoProperties, 2, 0, 1)                 \
   V(Float64Mul, Operator::kCommutative, 2, 0, 1)                             \
   V(Float64Div, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float64Mod, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float64Pow, Operator::kNoProperties, 2, 0, 1)                            \
   V(Float64Sin, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Sinh, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Sqrt, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64Tan, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Tanh, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float32Equal, Operator::kCommutative, 2, 0, 1)                           \
@@ skipping 593 matching lines @@
   }
   ATOMIC_REPRESENTATION_LIST(STORE)
 #undef STORE
   UNREACHABLE();
   return nullptr;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8