[llvm] r254391 - Introduce a range version of std::find, and use in SCEV

[Sanjoy Das via llvm-commits]

Author: sanjoy
Date: Tue Dec  1 01:49:27 2015
New Revision: 254391

URL: http://llvm.org/viewvc/llvm-project?rev=254391&view=rev
Log:
Introduce a range version of std::find, and use in SCEV

Reviewers: dblaikie, pcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15064

Modified:
    llvm/trunk/include/llvm/ADT/STLExtras.h
    llvm/trunk/lib/Analysis/ScalarEvolution.cpp

Modified: llvm/trunk/include/llvm/ADT/STLExtras.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/STLExtras.h?rev=254391&r1=254390&r2=254391&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/STLExtras.h (original)
+++ llvm/trunk/include/llvm/ADT/STLExtras.h Tue Dec  1 01:49:27 2015
@@ -379,6 +379,13 @@ bool any_of(R &&Range, UnaryPredicate &&
                      std::forward<UnaryPredicate>(P));
 }
 
+/// Provide wrappers to std::find which take ranges instead of having to pass
+/// begin/end explicitly.
+template<typename R, class T>
+auto find(R &&Range, const T &val) -> decltype(Range.begin()) {
+  return std::find(Range.begin(), Range.end(), val);
+}
+
 //===----------------------------------------------------------------------===//
 //     Extra additions to <memory>
 //===----------------------------------------------------------------------===//

Modified: llvm/trunk/lib/Analysis/ScalarEvolution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolution.cpp?rev=254391&r1=254390&r2=254391&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Tue Dec  1 01:49:27 2015
@@ -7964,8 +7964,7 @@ static bool IsMaxConsistingOf(const SCEV
   const MaxExprType *MaxExpr = dyn_cast<MaxExprType>(MaybeMaxExpr);
   if (!MaxExpr) return false;
 
-  auto It = std::find(MaxExpr->op_begin(), MaxExpr->op_end(), Candidate);
-  return It != MaxExpr->op_end();
+  return find(MaxExpr->operands(), Candidate) != MaxExpr->op_end();
 }