private void EmitGotoExpression(Expression expr, CompilationFlags flags) { var node = (GotoExpression)expr; LabelInfo labelInfo = ReferenceLabel(node.Target); CompilationFlags tailCall = flags & CompilationFlags.EmitAsTailCallMask; if (tailCall != CompilationFlags.EmitAsNoTail) { // Since tail call flags are not passed into EmitTryExpression, CanReturn // means the goto will be emitted as Ret. Therefore we can emit the goto's // default value with tail call. This can be improved by detecting if the // target label is equivalent to the return label. tailCall = labelInfo.CanReturn ? CompilationFlags.EmitAsTail : CompilationFlags.EmitAsNoTail; flags = UpdateEmitAsTailCallFlag(flags, tailCall); } if (node.Value != null) { if (node.Target.Type == typeof(void)) { EmitExpressionAsVoid(node.Value, flags); } else { flags = UpdateEmitExpressionStartFlag(flags, CompilationFlags.EmitExpressionStart); EmitExpression(node.Value, flags); } } labelInfo.EmitJump(); EmitUnreachable(node, flags); }