[ADT] Use llvm::has_single_bit (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-llvm-adt

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/146219.diff

1 Files Affected:

• (modified) llvm/include/llvm/ADT/SmallPtrSet.h (+1-1)

diff --git a/llvm/include/llvm/ADT/SmallPtrSet.h b/llvm/include/llvm/ADT/SmallPtrSet.h
index 2ce934321c456..892040ef4cab1 100644
--- a/llvm/include/llvm/ADT/SmallPtrSet.h
+++ b/llvm/include/llvm/ADT/SmallPtrSet.h
@@ -80,7 +80,7 @@ class SmallPtrSetImplBase : public DebugEpochBase {
   explicit SmallPtrSetImplBase(const void **SmallStorage, unsigned SmallSize)
       : CurArray(SmallStorage), CurArraySize(SmallSize), NumNonEmpty(0),
         NumTombstones(0), IsSmall(true) {
-    assert(SmallSize && (SmallSize & (SmallSize-1)) == 0 &&
+    assert(llvm::has_single_bit(SmallSize) &&
            "Initial size must be a power of two!");
   }