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-rw-r--r--js/src/jit-test/tests/cacheir/add-dense-element-non-writable-length.js160
1 files changed, 160 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/add-dense-element-non-writable-length.js b/js/src/jit-test/tests/cacheir/add-dense-element-non-writable-length.js
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+++ b/js/src/jit-test/tests/cacheir/add-dense-element-non-writable-length.js
@@ -0,0 +1,160 @@
+// Add dense elements to packed and non-packed arrays. Cover both mono- and
+// polymorphic call sites. Change array length to non-writable during execution.
+
+function testAddDenseEmpty() {
+ var array = [];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ for (var i = 0; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ store(array, i);
+ }
+
+ assertEq(array.length, 5);
+ for (var i = 0; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDenseEmpty();
+
+function testAddDensePacked() {
+ var array = [0, 1];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ for (var i = 2; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ store(array, i);
+ }
+
+ assertEq(array.length, 5);
+ for (var i = 0; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDensePacked();
+
+function testAddDenseNonPacked() {
+ var array = [/* hole */, 1];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ for (var i = 2; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ store(array, i);
+ }
+
+ assertEq(array.length, 5);
+ assertEq(0 in array, false);
+ for (var i = 1; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDenseNonPacked();
+
+function testAddDenseEmptyPoly() {
+ var array = [];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ var objects = [array, {}];
+
+ for (var i = 0; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ for (var j = 0; j < objects.length; ++j) {
+ store(objects[j], i);
+ }
+ }
+
+ assertEq(array.length, 5);
+ for (var i = 0; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDenseEmptyPoly();
+
+function testAddDensePackedPoly() {
+ var array = [0, 1];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ var objects = [array, {}];
+
+ for (var i = 2; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ for (var j = 0; j < objects.length; ++j) {
+ store(objects[j], i);
+ }
+ }
+
+ assertEq(array.length, 5);
+ for (var i = 0; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDensePackedPoly();
+
+function testAddDenseNonPackedPoly() {
+ var array = [/* hole */, 1];
+
+ function store(ar, index) {
+ ar[index] = index;
+ }
+
+ var objects = [array, {}];
+
+ for (var i = 2; i < 10; ++i) {
+ if (i === 5) {
+ Object.defineProperty(array, "length", {writable: false});
+ }
+ for (var j = 0; j < objects.length; ++j) {
+ store(objects[j], i);
+ }
+ }
+
+ assertEq(array.length, 5);
+ assertEq(0 in array, false);
+ for (var i = 1; i < 5; ++i) {
+ assertEq(array[i], i);
+ }
+ for (var i = 5; i < 10; ++i) {
+ assertEq(i in array, false);
+ }
+}
+testAddDenseNonPackedPoly();