[WASM SIMD] Remove opcodes that are slow on some platforms.

src/compiler/opcodes.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_OPCODES_H_
 #define V8_COMPILER_OPCODES_H_
 
 #include <iosfwd>
 
 #include "src/globals.h"
@@ skipping 557 matching lines @@
   V(UnsafePointerAdd)
 
 #define MACHINE_SIMD_OP_LIST(V) \
   V(F32x4Splat)                 \
   V(F32x4ExtractLane)           \
   V(F32x4ReplaceLane)           \
   V(F32x4SConvertI32x4)         \
   V(F32x4UConvertI32x4)         \
   V(F32x4Abs)                   \
   V(F32x4Neg)                   \
-  V(F32x4Sqrt)                  \
   V(F32x4RecipApprox)           \
   V(F32x4RecipSqrtApprox)       \
   V(F32x4Add)                   \
   V(F32x4Sub)                   \
   V(F32x4Mul)                   \
-  V(F32x4Div)                   \
   V(F32x4Min)                   \
   V(F32x4Max)                   \
-  V(F32x4MinNum)                \
-  V(F32x4MaxNum)                \
-  V(F32x4RecipRefine)           \
-  V(F32x4RecipSqrtRefine)       \
   V(F32x4Eq)                    \
   V(F32x4Ne)                    \
   V(F32x4Lt)                    \
   V(F32x4Le)                    \
   V(F32x4Gt)                    \
   V(F32x4Ge)                    \
   V(I32x4Splat)                 \
   V(I32x4ExtractLane)           \
   V(I32x4ReplaceLane)           \
   V(I32x4SConvertF32x4)         \
@@ skipping 214 matching lines @@
   }
 };
 
 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, IrOpcode::Value);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_