9e55d25735
It's been enabled by default since Chrome 91. Bug: v8:6020 Change-Id: Id26b7fb0b7dffe19a88a6f0071dd59203b06415a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3957636 Reviewed-by: Deepti Gandluri <gdeepti@chromium.org> Commit-Queue: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/main@{#83862}
50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
// Copyright 2020 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.
|
|
|
|
d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
|
|
|
|
// Test for S128 global with initialization.
|
|
// This checks for a bug in copying the immediate values from the
|
|
// initialization expression into the globals area of the module.
|
|
(function TestS128GlobalInitialization() {
|
|
var builder = new WasmModuleBuilder();
|
|
var g = builder.addGlobal(
|
|
kWasmS128, false,
|
|
[kSimdPrefix, kExprS128Const,
|
|
1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0, 0]);
|
|
|
|
// Check that all lanes have the right values by creating 4 functions that
|
|
// extract each lane.
|
|
function addGetFunction(i) {
|
|
builder.addFunction(`get${i}`, kSig_i_v)
|
|
.addBody([
|
|
kExprGlobalGet, g.index,
|
|
kSimdPrefix, kExprI32x4ExtractLane, i])
|
|
.exportAs(`get${i}`);
|
|
}
|
|
|
|
for (let i = 0; i < 4; i++) {
|
|
addGetFunction(i);
|
|
}
|
|
|
|
var instance = builder.instantiate();
|
|
|
|
for (let i = 0; i < 4; i++) {
|
|
// get0 will get lane0, which has value 1
|
|
assertEquals(i+1, instance.exports[`get${i}`]());
|
|
}
|
|
})();
|
|
|
|
(function TestS128GlobalImport() {
|
|
// We want to test that a module with an imported V128 global does not crash.
|
|
// But that is a bit tricky because:
|
|
// 1. WebAssembly.Global({value: 'v128'}) is an error
|
|
// 2. WebAssembly.Global of any other type is a type mismatch error
|
|
// So here, we do 2. in order to get further along the code path, where
|
|
// previously it would have crashed, it now checks for v128 and exits early.
|
|
var builder = new WasmModuleBuilder();
|
|
var g = builder.addImportedGlobal('m', 'foo', kWasmS128);
|
|
assertThrows(() => builder.instantiate({m: {foo: 0}}));
|
|
})();
|