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Merge pull request #60917 from lorentey/no-conversions-please

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[stdlib] Don’t do full integer conversions in _roundUp
This commit is contained in:
Karoy Lorentey
2022-09-04 16:44:56 -07:00
committed by GitHub
parent aa976ffd0d 6eddc2ed42
commit 486dc27e1d
1 changed files with 4 additions and 1 deletions
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5
stdlib/public/core/Builtin.swift
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@@ -39,7 +39,10 @@ internal func _roundUp(_ offset: UInt, toAlignment alignment: Int) -> UInt {
@inlinable
internal func _roundUp(_ offset: Int, toAlignment alignment: Int) -> Int {
_internalInvariant(offset >= 0)
return Int(_roundUpImpl(UInt(bitPattern: offset), toAlignment: alignment))
let offset = UInt(bitPattern: offset)
let result = Int(bitPattern: _roundUpImpl(offset, toAlignment: alignment))
_internalInvariant(result >= 0)
return result
}
/// Returns a tri-state of 0 = no, 1 = yes, 2 = maybe.