918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
// 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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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestLoopUnrolling() {
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var builder = new WasmModuleBuilder();
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builder.addFunction("main", makeSig([kWasmI32], [kWasmI32]))
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.addLocals(kWasmI32, 2)
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.addBody([
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// while (true)
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kExprBlock, kWasmVoid,
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kExprLoop, kWasmVoid,
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// if (param[0] == 0) break;
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kExprLocalGet, 0,
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kExprI32Eqz,
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kExprBrIf, 1,
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// --param[0];
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kExprLocalGet, 0,
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kExprI32Const, 1,
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kExprI32Sub,
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kExprLocalSet, 0,
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// ++local[1];
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kExprLocalGet, 1,
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kExprI32Const, 1,
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kExprI32Add,
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kExprLocalSet, 1,
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// continue;
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kExprBr, 0,
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kExprEnd,
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kExprEnd,
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// while (true)
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kExprLoop, kWasmVoid,
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// if (local[1] == 0) return 42;
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kExprLocalGet, 1,
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kExprI32Eqz,
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kExprIf, kWasmVoid,
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kExprI32Const, 42,
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kExprReturn,
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kExprEnd,
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// ++local[2];
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kExprLocalGet, 2,
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kExprI32Const, 1,
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kExprI32Add,
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// if (local[2] == 5) return local[1];
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kExprLocalTee, 2,
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kExprI32Const, 5,
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kExprI32Eq,
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kExprIf, kWasmVoid,
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kExprLocalGet, 1,
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kExprReturn,
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kExprEnd,
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// continue;
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kExprBr, 0,
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kExprEnd,
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kExprUnreachable,
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]).exportFunc();
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let wasm = builder.instantiate().exports;
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assertEquals(10, wasm.main(10));
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})();
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