Add wasm internal opcodes for asm.js stdlib functions we're missing.

src/wasm/wasm-opcodes.cc

 // 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.
 
 #include "src/wasm/wasm-opcodes.h"
 #include "src/signature.h"
 
 namespace v8 {
 namespace internal {
 namespace wasm {
@@ skipping 48 matching lines @@
     nullptr, FOREACH_SIGNATURE(DECLARE_SIG_ENTRY)};
 
 static byte kSimpleExprSigTable[256];
 
 
 // Initialize the signature table.
 static void InitSigTable() {
 #define SET_SIG_TABLE(name, opcode, sig) \
   kSimpleExprSigTable[opcode] = static_cast<int>(kSigEnum_##sig) + 1;
   FOREACH_SIMPLE_OPCODE(SET_SIG_TABLE);
+  FOREACH_ASMJS_COMPAT_OPCODE(SET_SIG_TABLE);
 #undef SET_SIG_TABLE
 }
 
 
 FunctionSig* WasmOpcodes::Signature(WasmOpcode opcode) {
   // TODO(titzer): use LazyInstance to make this thread safe.
   if (kSimpleExprSigTable[kExprI32Add] == 0) InitSigTable();
   return const_cast<FunctionSig*>(
       kSimpleExprSigs[kSimpleExprSigTable[static_cast<byte>(opcode)]]);
 }
@@ skipping 59 matching lines @@
     default:
       return true;
   }
 #else
   return true;
 #endif
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8