v8/test/mjsunit/regress/wasm/regress-7785.js
Andreas Haas 10e2311f8a [test] Enable --wasm-tier-up when test does serialization
With a recent change, we require WebAssembly code to be tiered up to
serialize it, see https://crrev.com/c/2349290. In that CL tests were
adjusted to set the --wasm-tier-up flag when serialization was involved.
However, the test adjusted in this CL was missing, because this test
used the kExprRefNull instruction, which caused a bailout to TurboFan
anyways. With recent changes, Liftoff can compile kExprRefNull now,
and therefore causes problems.

R=thibaudm@chromium.org

Bug: v8:10852
Change-Id: I9b89f37c22f17cbf046110f3ee1c98bfea73e009
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2387574
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69648}
2020-09-01 15:35:09 +00:00

46 lines
1.6 KiB
JavaScript

// 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.
// The test needs --wasm-tier-up because we can't serialize and deserialize
// Liftoff code.
// Flags: --allow-natives-syntax --experimental-wasm-reftypes --wasm-tier-up
load("test/mjsunit/wasm/wasm-module-builder.js");
(function testExternRefNull() {
const builder = new WasmModuleBuilder();
builder.addFunction('main', kSig_r_v)
.addBody([kExprRefNull, kWasmExternRef])
.exportFunc();
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var buffer = %SerializeWasmModule(module);
module = %DeserializeWasmModule(buffer, wire_bytes);
var instance = new WebAssembly.Instance(module);
assertEquals(null, instance.exports.main());
})();
(function testExternRefIsNull() {
const builder = new WasmModuleBuilder();
builder.addFunction('main', kSig_i_r)
.addBody([kExprLocalGet, 0, kExprRefIsNull])
.exportFunc();
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var buffer = %SerializeWasmModule(module);
module = %DeserializeWasmModule(buffer, wire_bytes);
var instance = new WebAssembly.Instance(module);
assertEquals(0, instance.exports.main({'hello' : 'world'}));
assertEquals(0, instance.exports.main(1234));
assertEquals(0, instance.exports.main(0));
assertEquals(0, instance.exports.main(123.4));
assertEquals(0, instance.exports.main(undefined));
assertEquals(1, instance.exports.main(null));
assertEquals(0, instance.exports.main(print));
})();