[SLP][NFC] Simplify count_if to count

[pfusik]

No description provided.

[llvmbot]

@llvm/pr-subscribers-vectorizers

@llvm/pr-subscribers-llvm-transforms

Author: Piotr Fusik (pfusik)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/149072.diff

1 Files Affected:

• (modified) llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp (+1-2)

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 87de28044b2ae..31b4aff0768db 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -5540,8 +5540,7 @@ BoUpSLP::findReusedOrderedScalars(const BoUpSLP::TreeEntry &TE,
       return std::max(Entries[I].front()->getVectorFactor(),
                       Entries[I].back()->getVectorFactor());
     });
-  unsigned NumUndefs =
-      count_if(CurrentOrder, [&](unsigned Idx) { return Idx == NumScalars; });
+  unsigned NumUndefs = count(CurrentOrder, NumScalars);
   if (ShuffledSubMasks.all() || (NumScalars > 2 && NumUndefs >= NumScalars / 2))
     return std::nullopt;
   return std::move(CurrentOrder);