cfbf9e0d14
PR-URL: https://github.com/nodejs/node/pull/52465 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
33 lines
1.2 KiB
JavaScript
33 lines
1.2 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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const builder = new WasmModuleBuilder();
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let $sig4 = builder.addType(kSig_i_iii);
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let $mem0 = builder.addMemory(16, 32);
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// func $main: [kWasmI32, kWasmI32, kWasmI32] -> [kWasmI32]
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builder.addFunction('main', $sig4).exportFunc().addBody([
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// Load from memory. The memory is zero-initialized, so the loaded value is
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// 0.
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kExprI32Const, 1,
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kExprI64LoadMem32S, 1, 0,
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// Store to memory using a SIMD store instruction. This store overlaps with
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// the load above.
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...wasmI32Const(3),
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...wasmI32Const(0xFF),
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kSimdPrefix, kExprI8x16Splat,
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kSimdPrefix, kExprS128Store64Lane, 0, 0, 0,
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// Consume the loaded value. Due to a bug the load was "delayed" to this
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// point behind the store causing the load to partially load the stored
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// value.
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kSimdPrefix, kExprI64x2Splat,
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...SimdInstr(kExprI32x4BitMask),
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]);
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const instance = builder.instantiate({});
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assertEquals(0, instance.exports.main(1, 2, 3));
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