[SLP] nullptr'ize initial value in `findBuildAggregate()`, NFC.

Initial value of V is sett nullptr, as it is not used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295642 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 5c95f88a3f98eba3141143491a87ddb5f195c838..bab63c2fff57abc0d258461ad2d2a644cd1bef3a 100644 (file)
--- a/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -4614,7 +4614,7 @@ static bool findBuildVector(InsertElementInst *FirstInsertElem,
 static bool findBuildAggregate(InsertValueInst *IV,
                                SmallVectorImpl<Value *> &BuildVector,
                                SmallVectorImpl<Value *> &BuildVectorOpds) {
-  Value *V = IV;
+  Value *V = nullptr;
   do {
     BuildVector.push_back(IV);
     BuildVectorOpds.push_back(IV->getInsertedValueOperand());