1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/extended-const/disabled.js b/js/src/jit-test/tests/wasm/extended-const/disabled.js
new file mode 100644
index 0000000000..01e64f6c44
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/extended-const/disabled.js
@@ -0,0 +1,22 @@
+// |jit-test| skip-if: wasmExtendedConstEnabled()
+
+const { CompileError, validate } = WebAssembly;
+
+const DISABLED = /extended constant expressions not enabled|unrecognized opcode/;
+
+let tests = [
+    "(module (global i32 i32.const 0 i32.const 0 i32.add))",
+    "(module (global i32 i32.const 0 i32.const 0 i32.sub))",
+    "(module (global i32 i32.const 0 i32.const 0 i32.mul))",
+    "(module (global i64 i64.const 0 i64.const 0 i64.add))",
+    "(module (global i64 i64.const 0 i64.const 0 i64.sub))",
+    "(module (global i64 i64.const 0 i64.const 0 i64.mul))",
+];
+
+// Test that use of extended constants fails when disabled.
+
+for (let src of tests) {
+    let bin = wasmTextToBinary(src);
+    assertEq(validate(bin), false);
+    wasmCompilationShouldFail(bin, DISABLED);
+}