Changeset 10791

Timestamp:

04/24/14 10:07:09 (10 years ago)

Author:

mkommend

Message:

#2177: Added xor support in the IL emitting interpreter.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs

@@ -447 +447 @@
             il.Emit(System.Reflection.Emit.OpCodes.Sub);
             il.Emit(System.Reflection.Emit.OpCodes.Neg); // * -1
+            return;
+          }
+        case OpCodes.XOR: {
+            CompileInstructions(il, state, ds);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+            il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
+
+            for (int i = 1; i < nArgs; i++) {
+              CompileInstructions(il, state, ds);
+              il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+              il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
+              il.Emit(System.Reflection.Emit.OpCodes.Xor);
+            }
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 2.0); // * 2
+            il.Emit(System.Reflection.Emit.OpCodes.Mul);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 1.0); // - 1
+            il.Emit(System.Reflection.Emit.OpCodes.Sub);
             return;
           }