Modify ModRefInfo values using static inline method abstractions [NFC].

Summary:
The aim is to make ModRefInfo checks and changes more intuitive
and less error prone using inline methods that abstract the bit operations.

Ideally ModRefInfo would become an enum class, but that change will require
a wider set of changes into FunctionModRefBehavior.

Reviewers: sanjoy, george.burgess.iv, dberlin, hfinkel

Subscribers: nlopes, llvm-commits

Differential Revision: https://reviews.llvm.org/D40749

llvm-svn: 319821

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp b/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
index f5aa47f927e..a8782e05851 100644
--- a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
@@ -332,7 +332,7 @@ static bool canMoveAboveCall(Instruction *I, CallInst *CI, AliasAnalysis *AA) {
       // Writes to memory only matter if they may alias the pointer
       // being loaded from.
       const DataLayout &DL = L->getModule()->getDataLayout();
-      if ((AA->getModRefInfo(CI, MemoryLocation::get(L)) & MRI_Mod) ||
+      if (isModSet(AA->getModRefInfo(CI, MemoryLocation::get(L))) ||
           !isSafeToLoadUnconditionally(L->getPointerOperand(),
                                        L->getAlignment(), DL, L))
         return false;