50930a0fa0
PR-URL: https://github.com/nodejs/node/pull/39469 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
30 lines
870 B
JavaScript
30 lines
870 B
JavaScript
// Copyright 2019 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');
|
|
|
|
// Construct a big table switch. The code size will overflow 4096 bytes.
|
|
const NUM_CASES = 3073;
|
|
|
|
let body = [];
|
|
// Add one block, so we can jump to this block or to the function end.
|
|
body.push(kExprBlock);
|
|
body.push(kWasmVoid);
|
|
|
|
// Add the big BrTable.
|
|
body.push(kExprLocalGet, 0);
|
|
body.push(kExprBrTable, ...wasmSignedLeb(NUM_CASES));
|
|
for (let i = 0; i < NUM_CASES + 1; i++) {
|
|
body.push(i % 2);
|
|
}
|
|
|
|
// End the block.
|
|
body.push(kExprEnd);
|
|
|
|
// Create a module for this.
|
|
let builder = new WasmModuleBuilder();
|
|
builder.addFunction('main', kSig_v_i).addBody(body).exportFunc();
|
|
let instance = builder.instantiate();
|
|
instance.exports.main(0);
|