[SCEV] Avoid a couple APInt copies by capturing by reference since the method returns a reference.

llvm-svn: 302332

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 8c5813a43c7..2ae4014bd62 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -8943,7 +8943,7 @@ bool ScalarEvolution::isImpliedCondOperandsViaRanges(ICmpInst::Predicate Pred,
   if (!Addend)
     return false;
 
-  APInt ConstFoundRHS = cast<SCEVConstant>(FoundRHS)->getAPInt();
+  const APInt &ConstFoundRHS = cast<SCEVConstant>(FoundRHS)->getAPInt();
 
   // `FoundLHSRange` is the range we know `FoundLHS` to be in by virtue of the
   // antecedent "`FoundLHS` `Pred` `FoundRHS`".
@@ -8955,7 +8955,7 @@ bool ScalarEvolution::isImpliedCondOperandsViaRanges(ICmpInst::Predicate Pred,
 
   // We can also compute the range of values for `LHS` that satisfy the
   // consequent, "`LHS` `Pred` `RHS`":
-  APInt ConstRHS = cast<SCEVConstant>(RHS)->getAPInt();
+  const APInt &ConstRHS = cast<SCEVConstant>(RHS)->getAPInt();
   ConstantRange SatisfyingLHSRange =
       ConstantRange::makeSatisfyingICmpRegion(Pred, ConstRHS);