fix corner case in sign propagation (#3696)

- migrate de-facto functionality to `evaluate`

fixes #3695

2 files changed, 19 insertions, 1 deletions

diff --git a/test/compress/issue-1770.js b/test/compress/issue-1770.js
index 7a529b2c..cd86d9d5 100644
--- a/test/compress/issue-1770.js
+++ b/test/compress/issue-1770.js
@@ -46,7 +46,7 @@ mangle_props: {
             obj[1/0],
             obj["Infinity"],
             obj[-1/0],
-            obj[-1/0],
+            obj[-(1/0)],
             obj["-Infinity"],
             obj[null],
             obj["null"]
diff --git a/test/compress/numbers.js b/test/compress/numbers.js
index e6f6ce23..9fca46f3 100644
--- a/test/compress/numbers.js
+++ b/test/compress/numbers.js
@@ -669,6 +669,9 @@ issue_1710: {
 }
 
 unary_binary_parenthesis: {
+    options = {
+        evaluate: true,
+    }
     input: {
         var v = [ 0, 1, NaN, Infinity, null, undefined, true, false, "", "foo", /foo/ ];
         v.forEach(function(x) {
@@ -1233,3 +1236,18 @@ issue_3684: {
         "Infinity",
     ]
 }
+
+issue_3695: {
+    options = {
+        evaluate: true,
+    }
+    input: {
+        var a = [];
+        console.log(+(a * (a[0] = false)));
+    }
+    expect: {
+        var a = [];
+        console.log(+(a * (a[0] = false)));
+    }
+    expect_stdout: "NaN"
+}