+/// smin_pred_ty - Helper class for identifying signed min predicates.
+struct smin_pred_ty {
+ static bool match(ICmpInst::Predicate Pred) {
+ return Pred == CmpInst::ICMP_SLT || Pred == CmpInst::ICMP_SLE;
+ }
+};
+
+/// umax_pred_ty - Helper class for identifying unsigned max predicates.
+struct umax_pred_ty {
+ static bool match(ICmpInst::Predicate Pred) {
+ return Pred == CmpInst::ICMP_UGT || Pred == CmpInst::ICMP_UGE;
+ }
+};
+
+/// umin_pred_ty - Helper class for identifying unsigned min predicates.
+struct umin_pred_ty {
+ static bool match(ICmpInst::Predicate Pred) {
+ return Pred == CmpInst::ICMP_ULT || Pred == CmpInst::ICMP_ULE;
+ }
+};
+
+template<typename LHS, typename RHS>
+inline MaxMin_match<LHS, RHS, smax_pred_ty>
+m_SMax(const LHS &L, const RHS &R) {
+ return MaxMin_match<LHS, RHS, smax_pred_ty>(L, R);
+}
+
+template<typename LHS, typename RHS>
+inline MaxMin_match<LHS, RHS, smin_pred_ty>
+m_SMin(const LHS &L, const RHS &R) {
+ return MaxMin_match<LHS, RHS, smin_pred_ty>(L, R);
+}
+
+template<typename LHS, typename RHS>
+inline MaxMin_match<LHS, RHS, umax_pred_ty>
+m_UMax(const LHS &L, const RHS &R) {
+ return MaxMin_match<LHS, RHS, umax_pred_ty>(L, R);
+}
+
+template<typename LHS, typename RHS>
+inline MaxMin_match<LHS, RHS, umin_pred_ty>
+m_UMin(const LHS &L, const RHS &R) {
+ return MaxMin_match<LHS, RHS, umin_pred_ty>(L, R);
+}
+
+} // end namespace PatternMatch
+} // end namespace llvm
+
+#endif