Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory …

src/compiler/common-operator.h

 // 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.
 
 #ifndef V8_COMPILER_COMMON_OPERATOR_H_
 #define V8_COMPILER_COMMON_OPERATOR_H_
 
 #include "src/assembler.h"
 #include "src/compiler/frame-states.h"
 #include "src/machine-type.h"
@@ skipping 99 matching lines @@
   const char* debug_name_;
 };
 
 std::ostream& operator<<(std::ostream&, ParameterInfo const&);
 
 int ParameterIndexOf(const Operator* const);
 const ParameterInfo& ParameterInfoOf(const Operator* const);
 
 class RelocatablePtrConstantInfo final {
  public:
-  RelocatablePtrConstantInfo(intptr_t value, RelocInfo::Mode rmode)
-      : value_(value), rmode_(rmode) {}
+  enum Type { kInt32, kInt64 };
+
+  RelocatablePtrConstantInfo(int32_t value, RelocInfo::Mode rmode)
+      : value_(value), rmode_(rmode), type_(kInt32) {}
+  RelocatablePtrConstantInfo(int64_t value, RelocInfo::Mode rmode)
+      : value_(value), rmode_(rmode), type_(kInt64) {}
 
   intptr_t value() const { return value_; }
   RelocInfo::Mode rmode() const { return rmode_; }
+  Type type() const { return type_; }
 
  private:
   intptr_t value_;
   RelocInfo::Mode rmode_;
+  Type type_;
 };
 
 bool operator==(RelocatablePtrConstantInfo const& lhs,
                 RelocatablePtrConstantInfo const& rhs);
 bool operator!=(RelocatablePtrConstantInfo const& lhs,
                 RelocatablePtrConstantInfo const& rhs);
 std::ostream& operator<<(std::ostream&, RelocatablePtrConstantInfo const&);
 size_t hash_value(RelocatablePtrConstantInfo const& p);
 
 // Interface for building common operators that can be used at any level of IR,
@@ skipping 75 matching lines @@
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(CommonOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_COMMON_OPERATOR_H_