63946bd50e
This is the first part of exception handling support in Liftoff. For now, the only supported instruction is throw, and only with empty payload or only i32 values. R=thibaudm@chromium.org Bug: v8:11453 Change-Id: I9fdf1328ef46655674a05186fb93216518886d03 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2704659 Reviewed-by: Thibaud Michaud <thibaudm@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#72871}
26 lines
972 B
JavaScript
26 lines
972 B
JavaScript
// Copyright 2019 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: --experimental-wasm-eh --allow-natives-syntax
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// Disable Liftoff so we can serialize the module.
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// Flags: --no-liftoff
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestSerializeDeserializeRuntimeCall() {
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var builder = new WasmModuleBuilder();
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var except = builder.addException(kSig_v_v);
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builder.addFunction("f", kSig_v_v)
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.addBody([
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kExprThrow, except,
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]).exportFunc();
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var wire_bytes = builder.toBuffer();
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var module = new WebAssembly.Module(wire_bytes);
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var instance1 = new WebAssembly.Instance(module);
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var serialized = %SerializeWasmModule(module);
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module = %DeserializeWasmModule(serialized, wire_bytes);
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var instance2 = new WebAssembly.Instance(module);
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assertThrows(() => instance2.exports.f(), WebAssembly.RuntimeError);
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})();
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