[Mono-bugs] [Bug 82120][Maj] New - += emiited as -= with unary minus expressions

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Changed by rolfkvinge at ya.com.

http://bugzilla.ximian.com/show_bug.cgi?id=82120

--- shadow/82120	2007-07-17 11:22:54.000000000 -0400
+++ shadow/82120.tmp.16013	2007-07-17 11:22:54.000000000 -0400
@@ -0,0 +1,49 @@
+Bug#: 82120
+Product: Mono: Compilers
+Version: 1.0
+OS: other
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: C#
+AssignedTo: rharinath at novell.com                            
+ReportedBy: rolfkvinge at ya.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: += emiited as -= with unary minus expressions
+
+Repro:
+
+class tmp
+{
+	public static void Main ()
+	{
+		int a, c;
+		a = 2; c = 0;
+		c += -a;
+		System.Console.WriteLine (c);
+	}
+}
+
+Prints:
+2
+
+Should print:
+-2
+
+IL:
+     L_0000: ldc.i4.2 
+     L_0001: stloc.0 
+     L_0002: ldc.i4.0 
+     L_0003: stloc.1 
+     L_0004: ldloc.1 
+     L_0005: ldloc.0 
+     L_0006: neg 
+?->  L_0007: sub 
+     L_0008: stloc.1 
+     L_0009: ldloc.1 
+     L_000a: call void [mscorlib]System.Console::WriteLine(int32)