[wasm] Prerequisites for WebAssembly Table.Grow

src/assembler.h

Index: src/assembler.h
diff --git a/src/assembler.h b/src/assembler.h
index 29a64d73cb5f86459b115bbaae7bf751cd8106e1..a5be37eb29914c22af154e55c86818426c388ae4 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -395,6 +395,7 @@ class RelocInfo {
     WASM_MEMORY_REFERENCE,
     WASM_GLOBAL_REFERENCE,
     WASM_MEMORY_SIZE_REFERENCE,
+    WASM_FUNCTION_TABLE_SIZE_REFERENCE,
     CELL,
 
     // Everything after runtime_entry (inclusive) is not GC'ed.
@@ -437,7 +438,7 @@ class RelocInfo {
     FIRST_REAL_RELOC_MODE = CODE_TARGET,
     LAST_REAL_RELOC_MODE = VENEER_POOL,
     LAST_CODE_ENUM = DEBUGGER_STATEMENT,
-    LAST_GCED_ENUM = WASM_MEMORY_SIZE_REFERENCE,
+    LAST_GCED_ENUM = WASM_FUNCTION_TABLE_SIZE_REFERENCE,
     FIRST_SHAREABLE_RELOC_MODE = CELL,
   };
 
@@ -530,6 +531,22 @@ class RelocInfo {
   static inline bool IsWasmGlobalReference(Mode mode) {
     return mode == WASM_GLOBAL_REFERENCE;
   }
+  static inline bool IsWasmFunctionTableSizeReference(Mode mode) {
+    return mode == WASM_FUNCTION_TABLE_SIZE_REFERENCE;
+  }
+  static inline bool IsWasmReference(Mode mode) {
+    return mode == WASM_MEMORY_REFERENCE || mode == WASM_GLOBAL_REFERENCE ||
+           mode == WASM_MEMORY_SIZE_REFERENCE ||
+           mode == WASM_FUNCTION_TABLE_SIZE_REFERENCE;
+  }
+  static inline bool IsWasmSizeReference(Mode mode) {
+    return mode == WASM_MEMORY_SIZE_REFERENCE ||
+           mode == WASM_FUNCTION_TABLE_SIZE_REFERENCE;
+  }
+  static inline bool IsWasmPtrReference(Mode mode) {
+    return mode == WASM_MEMORY_REFERENCE || mode == WASM_GLOBAL_REFERENCE;
+  }
+
   static inline int ModeMask(Mode mode) { return 1 << mode; }
 
   // Accessors
@@ -558,6 +575,7 @@ class RelocInfo {
 
   Address wasm_memory_reference();
   Address wasm_global_reference();
+  uint32_t wasm_function_table_size_reference();
   uint32_t wasm_memory_size_reference();
   void update_wasm_memory_reference(
       Address old_base, Address new_base, uint32_t old_size, uint32_t new_size,
@@ -565,6 +583,9 @@ class RelocInfo {
   void update_wasm_global_reference(
       Address old_base, Address new_base,
       ICacheFlushMode icache_flush_mode = FLUSH_ICACHE_IF_NEEDED);
+  void update_wasm_function_table_size_reference(
+      uint32_t old_base, uint32_t new_base,
+      ICacheFlushMode icache_flush_mode = FLUSH_ICACHE_IF_NEEDED);
   void set_target_address(
       Address target,
       WriteBarrierMode write_barrier_mode = UPDATE_WRITE_BARRIER,
@@ -673,8 +694,7 @@ class RelocInfo {
  private:
   void unchecked_update_wasm_memory_reference(Address address,
                                               ICacheFlushMode flush_mode);
-  void unchecked_update_wasm_memory_size(uint32_t size,
-                                         ICacheFlushMode flush_mode);
+  void unchecked_update_wasm_size(uint32_t size, ICacheFlushMode flush_mode);
 
   Isolate* isolate_;
   // On ARM, note that pc_ is the address of the constant pool entry