3 files changed, 47 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/bug1886870.js b/js/src/jit-test/tests/wasm/regress/bug1886870.js
new file mode 100644
index 0000000000..a4947bd91a
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/bug1886870.js
@@ -0,0 +1,8 @@
+// Check proper handling of OOM after toQuotedString().
+
+oomTest(function () {
+  new WebAssembly.Instance(
+    new WebAssembly.Module(wasmTextToBinary('(import "m" "f" (func $f))')),
+    {}
+  );
+});
diff --git a/js/src/jit-test/tests/wasm/regress/bug1887535.js b/js/src/jit-test/tests/wasm/regress/bug1887535.js
new file mode 100644
index 0000000000..e2793831bf
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/bug1887535.js
@@ -0,0 +1,25 @@
+// |jit-test| slow;
+
+// Tests the exception handling works during stack overflow.
+const v1 = newGlobal({sameZoneAs: this});
+class C2 {
+    static { }
+}
+
+function f() { v1.constructor; }
+
+const { test } = wasmEvalText(`
+(module
+    (import "" "f" (func $f))
+    (export "test" (func $f))
+)`, { "": { f, },}).exports;
+
+
+function f4() {
+    try {
+       f4();
+    } catch(_) {
+       test(); test();
+    }
+}
+f4();
diff --git a/js/src/jit-test/tests/wasm/regress/bug1887596.js b/js/src/jit-test/tests/wasm/regress/bug1887596.js
new file mode 100644
index 0000000000..8ff579fc35
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/bug1887596.js
@@ -0,0 +1,14 @@
+const t = `
+    (module
+        (func $f (result f32)
+            f32.const 1.25
+        )
+        (table (export "table") 10 funcref)
+        (elem (i32.const 0) $f)
+    )`;
+const i = new WebAssembly.Instance(new WebAssembly.Module(wasmTextToBinary(t)));
+const f = i.exports.table.get(0);
+
+// These FP equality comparisons are safe because 1.25 is representable exactly.
+assertEq(1.25, f());
+assertEq(1.25, this.wasmLosslessInvoke(f).value);