1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/atomics/inline-add2.js b/js/src/jit-test/tests/atomics/inline-add2.js
new file mode 100644
index 0000000000..4a8447022e
--- /dev/null
+++ b/js/src/jit-test/tests/atomics/inline-add2.js
@@ -0,0 +1,28 @@
+// |jit-test| slow;
+//
+// Like inline-add, but with Uint32Array, which is a special case
+// because the value is representable only as a Number.  All this
+// tests is that the Uint32 path is being triggered.
+//
+// This is intended to be run manually with IONFLAGS=logs and
+// postprocessing by iongraph to verify manually (by inspecting the
+// MIR) that:
+//
+//  - the add operation is inlined as it should be, with
+//    a return type 'Double'
+//  - loads and stores are not moved across the add
+//
+// Be sure to run with --ion-eager --ion-offthread-compile=off.
+
+function add(ta) {
+    return Atomics.add(ta, 86, 6);
+}
+
+var sab = new SharedArrayBuffer(4096);
+var ia = new Uint32Array(sab);
+for ( var i=0, limit=ia.length ; i < limit ; i++ )
+    ia[i] = 0xdeadbeef;		// Important: Not an int32-capable value
+var v = 0;
+for ( var i=0 ; i < 1000 ; i++ )
+    v += add(ia);
+//print(v);