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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/warp/map-has-value.js
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
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1 files changed, 97 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/map-has-value.js b/js/src/jit-test/tests/warp/map-has-value.js
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+// Similar test as "cacheir/map-has-value.js", except that we now perform
+// duplicate lookups to ensure GVN works properly.
+
+// Return a new map, possibly filling some dummy entries to enforce creating
+// multiple hash buckets.
+function createMap(values, n) {
+ var xs = [...values];
+ for (var i = 0; i < n; ++i) {
+ xs.push({});
+ }
+ return new Map(xs.map((x, i) => [x, i]));
+}
+
+function runTest(fn) {
+ fn(0);
+ fn(100);
+}
+
+function testPolymorphic_same_map(n) {
+ var xs = [10, 10.5, "test", Symbol("?"), 123n, -123n, {}, []];
+ var ys = [-0, NaN, "bad", Symbol("!"), 42n, -99n, {}, []];
+ var zs = [...xs, ...ys];
+ var map = createMap(xs, n);
+
+ var N = 128;
+ var c = 0;
+ for (var i = 0; i < N; ++i) {
+ var z = zs[i & 15];
+ if (map.has(z)) c++;
+ if (map.has(z)) c++;
+ }
+ assertEq(c, N);
+}
+runTest(testPolymorphic_same_map);
+
+// Duplicate the above tests, but this time use a different map.
+
+function testPolymorphic_different_map(n) {
+ var xs = [10, 10.5, "test", Symbol("?"), 123n, -123n, {}, []];
+ var ys = [-0, NaN, "bad", Symbol("!"), 42n, -99n, {}, []];
+ var zs = [...xs, ...ys];
+ var map1 = createMap(xs, n);
+ var map2 = createMap(xs, n);
+
+ var N = 128;
+ var c = 0;
+ for (var i = 0; i < N; ++i) {
+ var z = zs[i & 15];
+ if (map1.has(z)) c++;
+ if (map2.has(z)) c++;
+ }
+ assertEq(c, N);
+}
+runTest(testPolymorphic_different_map);
+
+// Test the alias information is correct.
+
+function testPolymorphic_alias(n) {
+ var xs = [10, 10.5, "test", Symbol("?"), 123n, -123n, {}, []];
+ var map = createMap([], n);
+
+ var N = 128;
+ var c = 0;
+ for (var i = 0; i < N; ++i) {
+ var x = xs[i & 15];
+
+ map.set(x, x);
+ if (map.has(x)) c++;
+
+ map.delete(x);
+ if (map.has(x)) c++;
+ }
+ assertEq(c, N);
+}
+runTest(testPolymorphic_alias);
+
+// And finally test that we don't actually support GVN for values, because the
+// hash changes when moving a value which holds an object.
+
+function testRekey() {
+ var map = new Map();
+ var c = 0;
+ var N = 100;
+ for (var i = 0; i < N; ++i) {
+ var k = (i & 1) ? {} : null;
+ map.set(k, 1);
+
+ if (map.has(k)) c++;
+
+ minorgc();
+
+ if (map.has(k)) c++;
+ }
+
+ assertEq(c, N * 2);
+}
+testRekey();