From aa35d4ed361dbb1c24e9802d4f6b854879e395aa Mon Sep 17 00:00:00 2001
From: Alexey Andreev <Alexey.Andreev@jetbrains.com>
Date: Thu, 14 Sep 2017 14:15:50 +0300
Subject: [PATCH] JS: prove that KT-8315 is no more reproducible

---
 .../js/test/semantics/BoxJsTestGenerated.java |  6 ++++++
 .../testData/box/number/incDecOptimization.kt | 20 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 js/js.translator/testData/box/number/incDecOptimization.kt

diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/BoxJsTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/BoxJsTestGenerated.java
index a04a3a63af5..3efbaf02386 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/BoxJsTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/BoxJsTestGenerated.java
@@ -6644,6 +6644,12 @@ public class BoxJsTestGenerated extends AbstractBoxJsTest {
             doTest(fileName);
         }
 
+        @TestMetadata("incDecOptimization.kt")
+        public void testIncDecOptimization() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("js/js.translator/testData/box/number/incDecOptimization.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("intConversions.kt")
         public void testIntConversions() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("js/js.translator/testData/box/number/intConversions.kt");
diff --git a/js/js.translator/testData/box/number/incDecOptimization.kt b/js/js.translator/testData/box/number/incDecOptimization.kt
new file mode 100644
index 00000000000..8b31c9d37c4
--- /dev/null
+++ b/js/js.translator/testData/box/number/incDecOptimization.kt
@@ -0,0 +1,20 @@
+// EXPECTED_REACHABLE_NODES: 1029
+// CHECK_VARS_COUNT: function=test count=1
+
+class A {
+    var i = 23
+}
+
+fun test(a: A): String {
+    var x = ++a.i
+    if (x != 24) return "fail1: $x"
+
+    a.i++
+    if (a.i != 25) return "fail2: $a.i"
+
+    // a.i++, used as expression, requires temporary variable
+
+    return "OK"
+}
+
+fun box(): String = test(A())
\ No newline at end of file