| // 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. |
| |
| load('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(kWasmStmt); |
| |
| // 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); |
