private void MarkOptimizationAndCaseBlocks(InstructionBlock block, RemoveCompilerOptimizationsStep.SwitchData data) { V_0 = new Queue <InstructionBlock>(); V_1 = new HashSet <int>(); V_2 = block.get_Successors(); V_3 = 0; while (V_3 < (int)V_2.Length) { V_0.Enqueue(V_2[V_3]); V_3 = V_3 + 1; } while (V_0.get_Count() > 0) { V_5 = V_0.Dequeue(); dummyVar0 = V_1.Add(V_5.get_First().get_Offset()); if (!this.IsOptimizationBlock(this.blockExpressions.get_Item(V_5.get_First().get_Offset()), data.get_OptimizationVariable())) { if (!this.IsCaseBlock(this.blockExpressions.get_Item(V_5.get_First().get_Offset()), data.get_SwitchExpression()) && !this.IsNullCaseBlock(this.blockExpressions.get_Item(V_5.get_First().get_Offset()), data.get_SwitchExpression())) { continue; } this.switchBlocksToCasesMap.get_Item(block.get_First().get_Offset()).Add(V_5.get_First().get_Offset()); V_8 = V_5.get_Successors()[1]; if (this.IsEmptyStringCaseBlock(this.blockExpressions.get_Item(V_8.get_First().get_Offset()), data.get_SwitchExpression())) { V_5.set_Last(V_8.get_Last()); V_5.set_Successors(V_8.get_Successors()); V_9 = this.blockExpressions.get_Item(V_5.get_First().get_Offset()).get_Item(0) as BinaryExpression; V_9.set_Right(new LiteralExpression("", this.methodContext.get_Method().get_Module().get_TypeSystem(), null)); V_10 = this.blockExpressions.get_Item(V_8.get_First().get_Offset()).get_Item(0).get_UnderlyingSameMethodInstructions(); V_9 = V_9.CloneAndAttachInstructions(V_10) as BinaryExpression; this.blockExpressions.get_Item(V_5.get_First().get_Offset()).set_Item(0, new UnaryExpression(11, V_9, null)); this.blocksToBeRemoved.Add(V_8.get_First().get_Offset()); } dummyVar1 = this.MarkSecondSuccessorForRemovalIfItIsUnconditionalJump(V_5); } else { V_6 = V_5.get_Successors()[0]; if (!V_1.Contains(V_6.get_First().get_Offset())) { V_0.Enqueue(V_6); } V_7 = this.MarkSecondSuccessorForRemovalIfItIsUnconditionalJump(V_5); if (!V_1.Contains(V_7.get_First().get_Offset()) && this.IsOptimizationBlock(this.blockExpressions.get_Item(V_5.get_First().get_Offset()), data.get_OptimizationVariable())) { V_0.Enqueue(V_7); } this.blocksToBeRemoved.Add(V_5.get_First().get_Offset()); } } return; }
private bool TryGetSwitchData(IList <Expression> expressions, out RemoveCompilerOptimizationsStep.SwitchData data) { data = null; if (expressions.get_Count() < 2 || expressions.get_Item(expressions.get_Count() - 2).get_CodeNodeType() != 24) { return(false); } V_0 = expressions.get_Item(expressions.get_Count() - 2) as BinaryExpression; if (!V_0.get_IsAssignmentExpression()) { return(false); } if (V_0.get_Left().get_CodeNodeType() != 26 || V_0.get_Right().get_CodeNodeType() != 19) { return(false); } V_1 = V_0.get_Right() as MethodInvocationExpression; if (!Utilities.IsComputeStringHashMethod(V_1.get_MethodExpression().get_Method())) { return(false); } data = new RemoveCompilerOptimizationsStep.SwitchData((V_0.get_Left() as VariableReferenceExpression).get_Variable(), V_1.get_Arguments().get_Item(0)); return(true); }