[wasm] cloning compiled module before instantiation

test/cctest/wasm/test-run-wasm.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 <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/base/platform/elapsed-timer.h"
 
@@ skipping 2454 matching lines @@
   module.PopulateIndirectFunctionTable();
 
   // Builder the caller function.
   WasmRunner<int32_t> r(&module, MachineType::Int32(), MachineType::Int32(),
                         MachineType::Int32());
   BUILD(r, WASM_I32_ADD(
                WASM_CALL_INDIRECT2(1, WASM_GET_LOCAL(0), WASM_GET_LOCAL(1),
                                    WASM_GET_LOCAL(2)),
                WASM_CALL_INDIRECT2(1, WASM_GET_LOCAL(1), WASM_GET_LOCAL(2),
                                    WASM_GET_LOCAL(0))));
-
   CHECK_EQ(5, r.Call(0, 1, 2));
   CHECK_EQ(19, r.Call(0, 1, 9));
   CHECK_EQ(1, r.Call(1, 0, 2));
   CHECK_EQ(1, r.Call(1, 0, 9));
 
   CHECK_TRAP(r.Call(0, 2, 1));
   CHECK_TRAP(r.Call(1, 2, 0));
   CHECK_TRAP(r.Call(2, 0, 1));
   CHECK_TRAP(r.Call(2, 1, 0));
 }
@@ skipping 374 matching lines @@
                         MachineType::Int32());
   BUILD(r, WASM_I32_REMS(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)), WASM_ZERO);
   const int32_t kMin = std::numeric_limits<int32_t>::min();
   CHECK_EQ(0, r.Call(133, 100));
   CHECK_EQ(0, r.Call(kMin, -1));
   CHECK_EQ(0, r.Call(0, 1));
   CHECK_TRAP(r.Call(100, 0));
   CHECK_TRAP(r.Call(-1001, 0));
   CHECK_TRAP(r.Call(kMin, 0));
 }