1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/grow-memory.js b/js/src/jit-test/tests/wasm/grow-memory.js
new file mode 100644
index 0000000000..53dcfcc848
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/grow-memory.js
@@ -0,0 +1,47 @@
+load(libdir + "wasm.js");
+
+function linearModule(min, max, ops) {
+  var opsText = ops.map(function (op) {
+    if (op[0] == "CM") {
+      res = `(if i32 (i32.ne (current_memory) (i32.const ${op[1]}))
+                  (i32.load offset=10 (i32.const 4294967295))
+                  (i32.const 0))`
+    } else if (op[0] == "GM") {
+      res = `(if i32 (i32.ne (grow_memory (i32.const ${op[1]})) (i32.const ${op[2]}))
+                 (i32.load offset=10 (i32.const 4294967295))
+                 (i32.const 0))`
+    } else if (op[0] == "L") {
+      var type = op[1];
+      var ext = op[2];
+      var off = op[3];
+      var loc = op[4]
+      var align = 0;
+      res = `(${type}.load${ext} offset=${off} (i32.const ${op[4]}))`;
+    } else if (op[0] == "S") {
+      var type = op[1];
+      var ext = op[2];
+      var off = op[3];
+      var loc = op[4]
+      var align = 0;
+      res = `(${type}.store${ext} offset=${off} (i32.const ${op[4]}) (i32.const 42))`;
+    }
+    return res;
+  }).join("\n")
+
+  let text =
+    `(module
+       (memory ${min} ${max})
+         ` + (min != 0 ? `(data (i32.const 0) "\\00\\01\\02\\03\\04\\05\\06\\07\\08\\09\\0a\\0b\\0c\\0d\\0e\\0f")
+                          (data (i32.const 16) "\\f0\\f1\\f2\\f3\\f4\\f5\\f6\\f7\\f8\\f9\\fa\\fb\\fc\\fd\\fe\\ff")`
+                      : "") +
+       `
+       (func (result i32)
+         (drop ` + opsText + `)
+         (current_memory)
+       ) (export "run" 0))`;
+
+  return text;
+}
+
+// Just grow some memory
+wasmFullPass(linearModule(3,5, [["CM", 3]]), 3);