[wasm] Add support for multiple indirect function tables

src/compiler/wasm-compiler.h

 // Copyright 2015 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_WASM_COMPILER_H_
 #define V8_COMPILER_WASM_COMPILER_H_
 
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/compiler.h"
@@ skipping 146 matching lines @@
   Node* JITSingleFunction(Node* base, Node* length, Node* index,
                           uint32_t sig_index, wasm::FunctionSig* sig,
                           wasm::WasmCodePosition position);
   void BuildJSToWasmWrapper(Handle<Code> wasm_code, wasm::FunctionSig* sig);
   void BuildWasmToJSWrapper(Handle<JSFunction> function,
                             wasm::FunctionSig* sig);
 
   Node* ToJS(Node* node, Node* context, wasm::LocalType type);
   Node* FromJS(Node* node, Node* context, wasm::LocalType type);
   Node* Invert(Node* node);
-  Node* FunctionTable();
+  Node* FunctionTable(uint32_t index);
   Node* ChangeToRuntimeCall(Node* node, Runtime::FunctionId function_id,
                             Signature<Conversion>* signature);
 
   //-----------------------------------------------------------------------
   // Operations that concern the linear memory.
   //-----------------------------------------------------------------------
   Node* MemSize(uint32_t offset);
   Node* LoadGlobal(uint32_t index);
   Node* StoreGlobal(uint32_t index, Node* val);
   Node* LoadMem(wasm::LocalType type, MachineType memtype, Node* index,
@@ skipping 26 matching lines @@
 
  private:
   static const int kDefaultBufferSize = 16;
   friend class WasmTrapHelper;
 
   Zone* zone_;
   JSGraph* jsgraph_;
   wasm::ModuleEnv* module_;
   Node* mem_buffer_;
   Node* mem_size_;
-  Node* function_table_;
+  NodeVector function_tables_;
   Node** control_;
   Node** effect_;
   Node** cur_buffer_;
   size_t cur_bufsize_;
   Node* def_buffer_[kDefaultBufferSize];
 
   WasmTrapHelper* trap_;
   wasm::FunctionSig* function_signature_;
   SetOncePointer<const Operator> allocate_heap_number_operator_;
 
@@ skipping 125 matching lines @@
   }
 
   // Simd helper functions
   MachineOperatorBuilder* simd();
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_WASM_COMPILER_H_