37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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// Copyright 2024 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --no-wasm-loop-unrolling --no-wasm-loop-peeling
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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const builder = new WasmModuleBuilder();
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let externExternSig = builder.addType(
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makeSig([kWasmExternRef], [kWasmExternRef]));
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let fromCharCodeSig = builder.addType(
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makeSig([kWasmI32], [wasmRefType(kWasmExternRef)]));
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let fromCodePoint = builder.addImport(
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'wasm:js-string', 'fromCodePoint', fromCharCodeSig);
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builder.addFunction('main', makeSig([], []))
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.addLocals(kWasmI32, 1) // loop counter
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.addBody([
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kExprI32Const, 5,
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kExprLocalTee, 0,
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kExprCallFunction, fromCodePoint,
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kExprLoop, externExternSig,
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kExprDrop,
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kExprRefNull, kExternRefCode,
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kExprLocalGet, 0,
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kExprI32Const, 1,
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kExprI32Sub,
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kExprLocalTee, 0,
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kExprBrIf, 0,
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kExprEnd,
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kExprDrop,
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]).exportFunc();
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let kBuiltins = { builtins: ['js-string', 'text-decoder', 'text-encoder'] };
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const instance = builder.instantiate({}, kBuiltins);
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instance.exports.main();
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