[PATCH] Add a new matcher m_ICmpWithPred

[Sanjoy Das]

This simplifies a later change

http://reviews.llvm.org/D6692

Files:
  include/llvm/IR/PatternMatch.h

Index: include/llvm/IR/PatternMatch.h
===================================================================
--- include/llvm/IR/PatternMatch.h
+++ include/llvm/IR/PatternMatch.h
@@ -705,6 +705,24 @@
   }
 };
 
+template<typename LHS_t, typename RHS_t, typename Class, typename PredicateTy, PredicateTy P>
+struct CmpClassPred_match {
+  LHS_t L;
+  RHS_t R;
+
+  CmpClassPred_match(const LHS_t &LHS, const RHS_t &RHS)
+    : L(LHS), R(RHS) {}
+
+  template<typename OpTy>
+  bool match(OpTy *V) {
+    PredicateTy Pred;
+    CmpClass_match<LHS_t, RHS_t, Class, PredicateTy> Inner(Pred, L, R);
+    if (Inner.match(V))
+      return Pred == P;
+    return false;
+  }
+};
+
 template <typename LHS, typename RHS>
 inline CmpClass_match<LHS, RHS, CmpInst, CmpInst::Predicate>
 m_Cmp(CmpInst::Predicate &Pred, const LHS &L, const RHS &R) {
@@ -717,6 +735,13 @@
   return CmpClass_match<LHS, RHS, ICmpInst, ICmpInst::Predicate>(Pred, L, R);
 }
 
+template<ICmpInst::Predicate P, typename LHS, typename RHS>
+inline CmpClassPred_match<LHS, RHS, ICmpInst, ICmpInst::Predicate, P>
+m_ICmpWithPred(const LHS &L, const RHS &R) {
+  return CmpClassPred_match<LHS, RHS,
+                            ICmpInst, ICmpInst::Predicate, P>(L, R);
+}
+
 template <typename LHS, typename RHS>
 inline CmpClass_match<LHS, RHS, FCmpInst, FCmpInst::Predicate>
 m_FCmp(FCmpInst::Predicate &Pred, const LHS &L, const RHS &R) {

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