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// Copyright 2016 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.
// Flags: --expose-wasm
load("test/mjsunit/wasm/wasm-module-builder.js");
var debug = false;
function SimpleDataSegmentTest(offset) {
print("SimpleDataSegmentTest(" + offset + ")...");
var builder = new WasmModuleBuilder();
builder.addMemory(1, 1, false);
builder.addFunction("load", kSig_i_i)
.addBody([kExprGetLocal, 0, kExprI32LoadMem, 0, 0])
.exportAs("load");
builder.addDataSegment(offset, [9, 9, 9, 9]);
var buffer = builder.toBuffer(debug);
var instance = new WebAssembly.Instance(new WebAssembly.Module(buffer));
for (var i = offset - 20; i < offset + 20; i += 4) {
if (i < 0) continue;
var expected = (i == offset) ? 151587081 : 0;
assertEquals(expected, instance.exports.load(i));
}
}
SimpleDataSegmentTest(0);
SimpleDataSegmentTest(4);
SimpleDataSegmentTest(12);
SimpleDataSegmentTest(1064);
function GlobalImportedInitTest(pad) {
print("GlobaleImportedInitTest(" + pad + ")...");
var builder = new WasmModuleBuilder();
builder.addMemory(1, 1, false);
var g = builder.addImportedGlobal("mod", "offset", kWasmI32);
while (pad-- > 0) builder.addGlobal(kWasmI32); // pad
builder.addFunction("load", kSig_i_i)
.addBody([kExprGetLocal, 0, kExprI32LoadMem, 0, 0])
.exportAs("load");
builder.addDataSegment(g.index, [5, 5, 5, 5], true);
var buffer = builder.toBuffer(debug);
var module = new WebAssembly.Module(buffer);
for (var offset of [0, 12, 192, 1024]) {
var instance = new WebAssembly.Instance(module, {mod: {offset: offset}});
for (var i = offset - 20; i < offset + 20; i += 4) {
if (i < 0) continue;
var expected = i == offset ? 84215045 : 0;
assertEquals(expected, instance.exports.load(i));
}
}
}
GlobalImportedInitTest(0);
GlobalImportedInitTest(1);
GlobalImportedInitTest(4);
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