[Mono-bugs] [Bug 74805][Maj] New - sometimes setting a variable doesn't change the inferior's execution

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Changed by toshok@ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=74805

--- shadow/74805	2005-05-03 03:51:03.000000000 -0400
+++ shadow/74805.tmp.22444	2005-05-03 03:51:03.000000000 -0400
@@ -0,0 +1,70 @@
+Bug#: 74805
+Product: Mono: Debugger
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: backend
+AssignedTo: toshok@ximian.com                            
+ReportedBy: toshok@ximian.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: sometimes setting a variable doesn't change the inferior's execution
+
+something's wrong between the jit and debugger, most probably.  Take the
+following test:
+
+using System;
+
+public class X
+{
+   public static bool foo() {
+     return false;
+   }
+
+  public static void Main (string[] args) {
+    bool ok = foo();
+
+    if (ok)
+      Console.WriteLine ("true");
+    else
+      Console.WriteLine ("false");
+  }
+}
+
+---
+
+If you run this program and step to the "if (ok)" line:
+
+Process @4 stopped at #0: 0x40d203fd in X.Main(System.String[])+0x1d at
+/home/toshok/src/debugger-tests/bool-set.cs:12.
+  12     if (ok)
+(mdb) print ok
+(System.Boolean) False
+(mdb) set ok = true
+(mdb) print ok
+(System.Boolean) True
+(mdb) c
+false
+Process @4 terminated normally.
+
+---
+
+Now, if we insert another statement between the initialization and the if
+(it doesn't matter what it is), and debug that program, stopping at the
+extra statement:
+
+Process @4 stopped at #0: 0x40d203fb in X.Main(System.String[])+0x1b at
+/home/toshok/src/debugger-tests/bool-set.cs:12.
+  12     foo ();
+(mdb) print ok
+(System.Boolean) False
+(mdb) set ok = true
+(mdb) c
+true
+Process @4 terminated normally.