[Mono-bugs] [Bug 43393][Nor] New - register allocation problem with bytes

bugzilla-daemon@rocky.ximian.com bugzilla-daemon@rocky.ximian.com
Tue, 20 May 2003 13:40:59 -0400 (EDT)


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Changed by vargaz@freemail.hu.

http://bugzilla.ximian.com/show_bug.cgi?id=43393

--- shadow/43393	Tue May 20 13:40:59 2003
+++ shadow/43393.tmp.28011	Tue May 20 13:40:59 2003
@@ -0,0 +1,60 @@
+Bug#: 43393
+Product: Mono/Runtime
+Version: unspecified
+OS: Debian Woody
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: misc
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: vargaz@freemail.hu               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: register allocation problem with bytes
+
+The 'allocate 8/16 bit values in registers' patch caused a regression. The
+following test case fails:
+
+<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+
+using System;
+
+class Bug {
+
+	public static byte foo () {
+		return 42;
+	}
+
+	public static sbyte abyte () {
+		return 42;
+	}
+
+	internal static void bar() {
+		byte bc = (byte)abyte ();
+		byte mode = 5;
+
+		switch(mode) {
+		case 0:
+			break;
+		case 5: {
+			Console.WriteLine ("B: " + abyte ());
+			break;
+		}
+		default:
+			break;
+		}
+		string s = ((byte)0).ToString ();
+	}
+
+	public static void Main () {
+		bar ();
+	}
+}
+<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+
+When running with --optimize=-linears it prints 42 as expected, otherwise
+it prints some random number.