fix value reference caching in evaluate (#2969)

fixes #2968
2018-03-02 04:04:29 +08:00
parent 56e2a369d0
commit 38f2b4579f
2 changed files with 60 additions and 24 deletions
--- a/test/compress/evaluate.js
+++ b/test/compress/evaluate.js
@@ -1535,3 +1535,34 @@ issue_2926_2: {
    }
    expect_stdout: "function"
 }
+
+issue_2968: {
+    options = {
+        collapse_vars: true,
+        evaluate: true,
+        inline: true,
+        passes: 2,
+        reduce_vars: true,
+        unused: true,
+    }
+    input: {
+        var c = "FAIL";
+        (function() {
+            (function(a, b) {
+                a <<= 0;
+                a && (a[(c = "PASS", 0 >>> (b += 1))] = 0);
+            })(42, -42);
+        })();
+        console.log(c);
+    }
+    expect: {
+        var c = "FAIL";
+        (function() {
+            b = -(a = 42),
+            void ((a <<= 0) && (a[(c = "PASS", 0 >>> (b += 1))] = 0));
+            var a, b;
+        })();
+        console.log(c);
+    }
+    expect_stdout: "PASS"
+}