1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1762343.js b/js/src/jit-test/tests/ion/bug1762343.js
new file mode 100644
index 0000000000..7e07c5e886
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1762343.js
@@ -0,0 +1,27 @@
+// |jit-test| --fast-warmup; --no-threads
+
+function placeholder() {}
+
+function main() {
+  const fhash = placeholder;
+  const v9 = -62980826;
+
+  let v21;
+  for (let i = 0; i < 32; i++) {
+    // Call Math.fround() to enable the Float32 specialization pass.
+    Math.fround(123);
+
+    // Math.trunc() can produce Float32.
+    const v18 = Math.trunc(-9007199254740992);
+
+    // |valueOf| is always true, but can't be inferred at compile-time.
+    const v20 = valueOf ? v18 : -9007199254740992;
+
+    // Use the Float32 value.
+    v21 = v20 && v9;
+  }
+
+  assertEq(v21, -62980826);
+}
+
+main();