7c74a9caea
Maintaining an AST class just for testing constant exressions does not seem justified. This CL changes constant expressions in mjsunit tests to be represented with bytes, like regular expressions. Change-Id: If5ec5f4d863176952442b1a7e2fec8a61e385971 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3714237 Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org> Cr-Commit-Position: refs/heads/main@{#81266}
52 lines
1.8 KiB
JavaScript
52 lines
1.8 KiB
JavaScript
// Copyright 2020 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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// Flags: --experimental-wasm-simd
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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// Test for S128 global with initialization.
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// This checks for a bug in copying the immediate values from the
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// initialization expression into the globals area of the module.
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(function TestS128GlobalInitialization() {
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var builder = new WasmModuleBuilder();
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var g = builder.addGlobal(
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kWasmS128, false,
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[kSimdPrefix, kExprS128Const,
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1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0, 0]);
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// Check that all lanes have the right values by creating 4 functions that
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// extract each lane.
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function addGetFunction(i) {
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builder.addFunction(`get${i}`, kSig_i_v)
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.addBody([
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kExprGlobalGet, g.index,
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kSimdPrefix, kExprI32x4ExtractLane, i])
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.exportAs(`get${i}`);
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}
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for (let i = 0; i < 4; i++) {
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addGetFunction(i);
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}
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var instance = builder.instantiate();
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for (let i = 0; i < 4; i++) {
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// get0 will get lane0, which has value 1
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assertEquals(i+1, instance.exports[`get${i}`]());
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}
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})();
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(function TestS128GlobalImport() {
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// We want to test that a module with an imported V128 global does not crash.
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// But that is a bit tricky because:
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// 1. WebAssembly.Global({value: 'v128'}) is an error
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// 2. WebAssembly.Global of any other type is a type mismatch error
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// So here, we do 2. in order to get further along the code path, where
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// previously it would have crashed, it now checks for v128 and exits early.
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var builder = new WasmModuleBuilder();
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var g = builder.addImportedGlobal('m', 'foo', kWasmS128);
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assertThrows(() => builder.instantiate({m: {foo: 0}}));
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})();
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