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// 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}}));
})();
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