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// |jit-test| test-also=--spectre-mitigations=off
// Ensure |index * ByteSize| overflowing int32_t is handled correctly in the
// backend.
const ab = new ArrayBuffer(7 * 1024 * 1024 * 1024);
function testInt16() {
var ta = new Int16Array(ab);
for (var i = 0; i < 2000; i++) {
var idx = 1073741824; // 2147483648 / 2, offset doesn't fit in int32_t.
assertEq(ta[idx], i);
++ta[idx];
idx = 1073741823; // Largest offset that fits in int32_t.
assertEq(ta[idx], i * 2);
ta[idx] += 2;
}
ta[1073741823] = 0;
ta[1073741824] = 0;
}
testInt16();
function testInt32() {
var ta = new Int32Array(ab);
for (var i = 0; i < 2000; i++) {
var idx = 536870912; // 2147483648 / 4, offset doesn't fit in int32_t.
assertEq(ta[idx], i);
++ta[idx];
idx = 536870911; // Largest offset that fits in int32_t.
assertEq(ta[idx], i * 2);
ta[idx] += 2;
}
ta[536870911] = 0;
ta[536870912] = 0;
}
testInt32();
function testFloat64() {
var ta = new Float64Array(ab);
for (var i = 0; i < 2000; i++) {
var idx = 268435456; // 2147483648 / 8
assertEq(ta[idx], i);
++ta[idx];
idx = 268435455; // Largest offset that fits in int32_t.
assertEq(ta[idx], i * 2);
ta[idx] += 2;
}
ta[268435455] = 0;
ta[268435456] = 0;
}
testFloat64();
function testBigInt() {
var ta = new BigInt64Array(ab);
for (var i = 0; i < 2000; i++) {
var idx = 268435456; // 2147483648 / 8
assertEq(ta[idx], BigInt(i));
++ta[idx];
idx = 268435455; // Largest offset that fits in int32_t.
assertEq(ta[idx], BigInt(i * 2));
ta[idx] += 2n;
}
ta[268435455] = 0n;
ta[268435456] = 0n;
}
testBigInt();
function testInt16Atomics() {
var ta = new Int16Array(ab);
for (var i = 0; i < 2000; i++) {
var idx = 1073741824; // 2147483648 / 2, offset doesn't fit in int32_t.
assertEq(Atomics.load(ta, idx), i);
Atomics.add(ta, idx, 1);
Atomics.exchange(ta, idx, 2);
assertEq(ta[idx], 2);
assertEq(Atomics.compareExchange(ta, idx, 2, 3), 2);
Atomics.store(ta, idx, i + 1);
idx = 1073741823; // Largest offset that fits in int32_t.
assertEq(Atomics.load(ta, idx), i);
Atomics.add(ta, idx, 1);
Atomics.exchange(ta, idx, 2);
assertEq(ta[idx], 2);
assertEq(Atomics.compareExchange(ta, idx, 2, 3), 2);
Atomics.store(ta, idx, i + 1);
}
ta[1073741823] = 0;
ta[1073741824] = 0;
}
testInt16Atomics();
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