From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 js/src/jit-test/tests/warp/map-has-value.js | 97 +++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 js/src/jit-test/tests/warp/map-has-value.js

(limited to 'js/src/jit-test/tests/warp/map-has-value.js')

diff --git a/js/src/jit-test/tests/warp/map-has-value.js b/js/src/jit-test/tests/warp/map-has-value.js
new file mode 100644
index 0000000000..b203b762e4
--- /dev/null
+++ b/js/src/jit-test/tests/warp/map-has-value.js
@@ -0,0 +1,97 @@
+// 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();
-- 
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