cdd984ef48
This is a reland of 60ee70bb40.
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}
30 lines
931 B
JavaScript
30 lines
931 B
JavaScript
// Copyright 2018 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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// The test needs --wasm-tier-up because we can't serialize and deserialize
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// Liftoff code.
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// Flags: --allow-natives-syntax --throws --wasm-tier-up
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load('test/mjsunit/wasm/wasm-module-builder.js');
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let kTableSize = 3;
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var builder = new WasmModuleBuilder();
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var sig_index1 = builder.addType(kSig_i_v);
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builder.addFunction('main', kSig_i_ii).addBody([
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kExprLocalGet,
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0,
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kExprCallIndirect,
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sig_index1,
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kTableZero
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]).exportAs('main');
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builder.setTableBounds(kTableSize, kTableSize);
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var m1_bytes = builder.toBuffer();
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var m1 = new WebAssembly.Module(m1_bytes);
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var serialized_m1 = %SerializeWasmModule(m1);
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var m1_clone = %DeserializeWasmModule(serialized_m1, m1_bytes);
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var i1 = new WebAssembly.Instance(m1_clone);
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i1.exports.main(123123);
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