[Mono-bugs] [Bug 58633][Maj] New - shift right breakage in the JIT
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Tue, 18 May 2004 02:20:53 -0400 (EDT)
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Changed by jackson@ximian.com.
http://bugzilla.ximian.com/show_bug.cgi?id=58633
--- shadow/58633 2004-05-18 02:20:53.000000000 -0400
+++ shadow/58633.tmp.19137 2004-05-18 02:20:53.000000000 -0400
@@ -0,0 +1,51 @@
+Bug#: 58633
+Product: Mono: Runtime
+Version: unspecified
+OS:
+OS Details: (x-86)
+Status: NEW
+Resolution:
+Severity:
+Priority: Major
+Component: misc
+AssignedTo: mono-bugs@ximian.com
+ReportedBy: jackson@ximian.com
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: shift right breakage in the JIT
+
+The shift right operator in the JIT is not working correctly.
+
+From miguel:
+
+using System;
+
+public class X
+{
+ static byte [] buffer = new byte [1];
+
+ public static void Main()
+ {
+ ulong value = 38654838087;
+ int x = 0;
+
+ buffer [x] = ((byte)(value >> x));
+ Console.WriteLine ("Should print 71->" + buffer [x]);
+ }
+}
+
+
+Correct output:
+ Should print 71->71
+
+Current output:
+ Should print 71->9
+
+
+Additional Information:
+Commenting out the ifndefs directives for
+MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS in mini.c and mini-x86.c fix the problem.
+
+This bug prevents ILASM from generating a useable binary.