[ADT] Use llvm::has_single_bit (NFC) (#146219)

kazutakahirata · web-flow · commit dea8217a7a09 · 2025-06-28T13:03:53.000-07:00
diff --git 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!");
   }
 

Original file line number	Diff line number	Diff line change
`@@ -80,7 +80,7 @@ class SmallPtrSetImplBase : public DebugEpochBase {`
`80`	`80`	`explicit SmallPtrSetImplBase(const void **SmallStorage, unsigned SmallSize)`
`81`	`81`	`: CurArray(SmallStorage), CurArraySize(SmallSize), NumNonEmpty(0),`
`82`	`82`	`NumTombstones(0), IsSmall(true) {`
`83`		`- assert(SmallSize && (SmallSize & (SmallSize-1)) == 0 &&`
	`83`	`+ assert(llvm::has_single_bit(SmallSize) &&`
`84`	`84`	`"Initial size must be a power of two!");`
`85`	`85`	`}`
`86`	`86`