Upgrade V8 to 5.1.281.57 DO NOT MERGE
FPIIM-449
Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/test/mjsunit/ignition/elided-instruction.js b/test/mjsunit/ignition/elided-instruction.js
new file mode 100644
index 0000000..807974b
--- /dev/null
+++ b/test/mjsunit/ignition/elided-instruction.js
@@ -0,0 +1,41 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --expose-debug-as debug
+
+Debug = debug.Debug
+
+var exception = null;
+var break_count = 0;
+
+function listener(event, exec_state, event_data, data) {
+ if (event != Debug.DebugEvent.Break) return;
+ try {
+ print(event_data.sourceLineText());
+ var column = event_data.sourceColumn();
+ assertTrue(event_data.sourceLineText().indexOf(
+ `Break ${break_count++}. ${column}.`) > 0);
+ exec_state.prepareStep(Debug.StepAction.StepIn);
+ } catch (e) {
+ print(e + e.stack);
+ exception = e;
+ }
+};
+
+function f() {
+ var a = 1; // Break 2. 10.
+ // This return statement emits no bytecode instruction for the evaluation of
+ // the to-be-returned expression. Therefore we cannot set a break location
+ // before the statement and a second break location immediately before
+ // returning to the caller.
+ return a;
+} // Break 3. 0.
+
+Debug.setListener(listener);
+debugger; // Break 0. 0.
+f(); // Break 1. 0.
+Debug.setListener(null); // Break 4. 0.
+
+assertNull(exception);
+assertEquals(5, break_count);