WIP: wasm oob trap handling experiments

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>
 
 // Opcodes for control operators.
@@ skipping 467 matching lines @@
   V(CheckedLoad)                \
   V(CheckedStore)               \
   V(UnalignedLoad)              \
   V(UnalignedStore)             \
   V(Int32PairAdd)               \
   V(Int32PairSub)               \
   V(Int32PairMul)               \
   V(Word32PairShl)              \
   V(Word32PairShr)              \
   V(Word32PairSar)              \
+  V(TrapableLoad)               \
   V(AtomicLoad)                 \
   V(AtomicStore)                \
   V(UnsafePointerAdd)
 
 #define MACHINE_SIMD_RETURN_SIMD_OP_LIST(V) \
   V(CreateFloat32x4)                        \
   V(Float32x4ReplaceLane)                   \
   V(Float32x4Abs)                           \
   V(Float32x4Neg)                           \
   V(Float32x4Sqrt)                          \
@@ skipping 255 matching lines @@
   }
 };
 
 std::ostream& operator<<(std::ostream&, IrOpcode::Value);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_