1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/ion-many-results.js b/js/src/jit-test/tests/wasm/regress/ion-many-results.js
new file mode 100644
index 0000000000..bc4df59e20
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/regress/ion-many-results.js
@@ -0,0 +1,17 @@
+// This provokes a crash in ion if its tempalloc reservation logic is not
+// up to snuff, bug 1675844.
+
+for ( let i=100; i < 300; i++ ) {
+    let xs = new Array(i).fill(1);
+
+    // Should not crash the compiler but should fail validation
+    assertErrorMessage(() => new WebAssembly.Module(wasmTextToBinary(`
+(module
+  (func $f (result ${xs.map(_ => 'i32 ').join(' ')})
+    ${xs.map((_) => '(i32.const 1)').join(' ')})
+  (func $g
+    (call $f)))`)),
+                       WebAssembly.CompileError,
+                       /(unused values not explicitly dropped)|(values remaining on stack)/);
+
+}