43 lines
1.4 KiB
JavaScript
43 lines
1.4 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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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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const builder = new WasmModuleBuilder();
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builder.addMemory(1, 1);
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builder.addFunction("main", kSig_i_v).exportFunc().addBody([
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kExprF32Const, 0x11, 0x00, 0xc0, 0xff,
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kExprF32Const, 0x22, 0x00, 0xc0, 0xff,
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kExprI32Const, 0, // Address.
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kExprI32LoadMem, 2, 0, // Alignment, offset.
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kExprSelect,
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kExprI32ReinterpretF32,
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]);
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builder.addFunction("reinterpret", kSig_i_v).exportFunc().addBody([
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...wasmI32Const(0xffc00011),
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kExprF32ReinterpretI32,
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...wasmI32Const(0xffc00022),
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kExprF32ReinterpretI32,
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kExprI32Const, 0, // Address.
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kExprI32LoadMem, 2, 0, // Alignment, offset.
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kExprSelect,
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kExprI32ReinterpretF32,
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]);
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builder.addFunction("gvn", makeSig([], [kWasmI32, kWasmI32])).exportFunc().addBody([
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kExprF32Const, 0x11, 0x00, 0xc0, 0xff,
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kExprI32ReinterpretF32,
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kExprF32Const, 0x11, 0x00, 0xe0, 0xff, // Note difference in third byte.
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kExprI32ReinterpretF32,
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]);
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const instance = builder.instantiate();
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assertEquals(0xffc00022, instance.exports.main() >>> 0);
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assertEquals(0xffc00022, instance.exports.reinterpret() >>> 0);
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let fs = instance.exports.gvn();
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assertEquals(0xffc00011, fs[0] >>> 0);
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assertEquals(0xffe00011, fs[1] >>> 0);
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