[compiler] Add relocatable pointer constants for wasm memory references.

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 14 matching lines @@
   V(DeoptimizeUnless)      \
   V(Return)                \
   V(TailCall)              \
   V(Terminate)             \
   V(OsrNormalEntry)        \
   V(OsrLoopEntry)          \
   V(Throw)                 \
   V(End)
 
 // Opcodes for constant operators.
-#define CONSTANT_OP_LIST(V) \
-  V(Int32Constant)          \
-  V(Int64Constant)          \
-  V(Float32Constant)        \
-  V(Float64Constant)        \
-  V(ExternalConstant)       \
-  V(NumberConstant)         \
-  V(HeapConstant)
+#define CONSTANT_OP_LIST(V)   \
+  V(Int32Constant)            \
+  V(Int64Constant)            \
+  V(Float32Constant)          \
+  V(Float64Constant)          \
+  V(ExternalConstant)         \
+  V(NumberConstant)           \
+  V(HeapConstant)             \
+  V(RelocatableInt32Constant) \
+  V(RelocatableInt64Constant)
 
 #define INNER_OP_LIST(V) \
   V(Select)              \
   V(Phi)                 \
   V(EffectSet)           \
   V(EffectPhi)           \
   V(Guard)               \
   V(BeginRegion)         \
   V(FinishRegion)        \
   V(FrameState)          \
@@ skipping 329 matching lines @@
     return kStart <= value && value <= kEnd;
   }
 
   // Returns true if opcode for JavaScript operator.
   static bool IsJsOpcode(Value value) {
     return kJSEqual <= value && value <= kJSStackCheck;
   }
 
   // Returns true if opcode for constant operator.
   static bool IsConstantOpcode(Value value) {
-    return kInt32Constant <= value && value <= kHeapConstant;
+    return kInt32Constant <= value && value <= kRelocatableInt64Constant;
   }
 
   static bool IsPhiOpcode(Value value) {
     return value == kPhi || value == kEffectPhi;
   }
 
   static bool IsMergeOpcode(Value value) {
     return value == kMerge || value == kLoop;
   }
 
@@ skipping 14 matching lines @@
   }
 };
 
 std::ostream& operator<<(std::ostream&, IrOpcode::Value);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_OPCODES_H_