v8/test/mjsunit/regress/wasm/regress-808980.js

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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
Reland "[wasm] Ensure that only TurboFan code is serialized" This is a reland of 60ee70bb40efea6f05476dc19f7a5b490193a107. The wasm c-api flakes were fixed in https://crrev.com/c/2349293. Original change's description: > [wasm] Ensure that only TurboFan code is serialized > > We have the implicit assumption that Liftoff code will never be > serialized, and we start relying on that when implementing new features > (debugging, dynamic tiering). > > This CL makes the serializer fail if the module contains any Liftoff > code. Existing tests are changed to ensure that we fully tiered up > before serializing a module (similar to the logic in Chromium). > The "wasm-clone-module" test needs to serialize the module before > enabling the debugger. > > Note that chrome currently only serializes a module after it fully > tiered up, so that should be fine. If other embedders need the ability > to serialize a module in an arbitrary state, we will have to fix this > later. With this CL we will be on the safe side though and (gracefully) > fail serialization instead of accidentally serializing Liftoff code. > > R=ahaas@chromium.org > > Bug: v8:10777 > Change-Id: I1245e5f7fda3447a544c1e3525e1239cde759174 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2336799 > Commit-Queue: Clemens Backes <clemensb@chromium.org> > Reviewed-by: Andreas Haas <ahaas@chromium.org> > Cr-Commit-Position: refs/heads/master@{#69276} Bug: v8:10777 Change-Id: I2a7c1429812ca46d88a2902b8e0a7b7e3d638b56 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2349290 Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#69335}
2020-08-11 11:36:55 +00:00
// The test needs --wasm-tier-up because we can't serialize and deserialize
// Liftoff code.
// Flags: --allow-natives-syntax --throws --wasm-tier-up
load('test/mjsunit/wasm/wasm-module-builder.js');
let kTableSize = 3;
var builder = new WasmModuleBuilder();
var sig_index1 = builder.addType(kSig_i_v);
builder.addFunction('main', kSig_i_ii).addBody([
kExprLocalGet,
0,
kExprCallIndirect,
sig_index1,
kTableZero
]).exportAs('main');
builder.setTableBounds(kTableSize, kTableSize);
var m1_bytes = builder.toBuffer();
var m1 = new WebAssembly.Module(m1_bytes);
var serialized_m1 = %SerializeWasmModule(m1);
var m1_clone = %DeserializeWasmModule(serialized_m1, m1_bytes);
var i1 = new WebAssembly.Instance(m1_clone);
i1.exports.main(123123);