nodejs/deps/v8/test/mjsunit/regress/wasm/regress-325359458.js

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// Copyright 2024 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.
d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
let builder = new WasmModuleBuilder();
let struct = builder.addStruct([makeField(kWasmAnyRef, true)]);
let body = [kExprRefNull, struct];
for (let i = 0; i < 800; i++) {
body = body.concat(...[
kGCPrefix, kExprStructGet, struct, 0,
kGCPrefix, kExprRefCastNull, struct,
]);
}
body = body.concat(...[kExprDrop]);
builder.addFunction("main", kSig_v_v).exportFunc().addBody(body);
let instance = builder.instantiate();
// Just check if we can compile without DCHECK failures.
assertThrows(() => instance.exports.main(), WebAssembly.RuntimeError,
'dereferencing a null pointer');