35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
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// Copyright 2022 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: --expose-gc
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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var builder = new WasmModuleBuilder();
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let gc_func = builder.addImport("imports", "gc", { params: [], results: [] });
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let callee = builder.addFunction('callee', {
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params: [
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// More tagged parameters than we can pass in registers on any platform.
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kWasmExternRef, kWasmExternRef, kWasmExternRef, kWasmExternRef,
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kWasmExternRef,
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// An untagged parameter to trip up the stack walker.
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kWasmI32, kWasmExternRef,
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],
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results: [kWasmI64] // An i64 to trigger replacement.
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}).addBody([kExprCallFunction, gc_func, kExprI64Const, 0]);
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builder.addFunction("main", { params: [], results: [] }).addBody([
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kExprRefNull, kExternRefCode,
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kExprRefNull, kExternRefCode,
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kExprRefNull, kExternRefCode,
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kExprRefNull, kExternRefCode,
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kExprRefNull, kExternRefCode,
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kExprI32Const, 0xf,
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kExprRefNull, kExternRefCode,
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kExprCallFunction, callee.index, kExprDrop
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]).exportFunc();
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var instance = builder.instantiate({ imports: { gc: () => { gc(); } } });
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instance.exports.main();
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