[llvm] 1738d04 - [Support] Use llvm::bit_ceil (NFC)

[Kazu Hirata via llvm-commits]

Author: Kazu Hirata
Date: 2023-01-29T16:07:04-08:00
New Revision: 1738d046631aed29c2ce7e3b1e79c1ba81eef27d

URL: https://github.com/llvm/llvm-project/commit/1738d046631aed29c2ce7e3b1e79c1ba81eef27d
DIFF: https://github.com/llvm/llvm-project/commit/1738d046631aed29c2ce7e3b1e79c1ba81eef27d.diff

LOG: [Support] Use llvm::bit_ceil (NFC)

For nonzero X, NextPowerOf2(X) is equivalent to llvm::bit_ceil(X + 1).

Added: 
    

Modified: 
    llvm/include/llvm/Support/OnDiskHashTable.h

Removed: 
    


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diff  --git a/llvm/include/llvm/Support/OnDiskHashTable.h b/llvm/include/llvm/Support/OnDiskHashTable.h
index 07ee8e79423ba..bb90d8fc3ac7d 100644
--- a/llvm/include/llvm/Support/OnDiskHashTable.h
+++ b/llvm/include/llvm/Support/OnDiskHashTable.h
@@ -163,7 +163,7 @@ template <typename Info> class OnDiskChainedHashTableGenerator {
     //
     // FIXME: Try computing a perfect hash function at this point.
     unsigned TargetNumBuckets =
-        NumEntries <= 2 ? 1 : NextPowerOf2(NumEntries * 4 / 3);
+        NumEntries <= 2 ? 1 : llvm::bit_ceil(NumEntries * 4 / 3 + 1);
     if (TargetNumBuckets != NumBuckets)
       resize(TargetNumBuckets);