vendor/llvm/llvm-trunk-r321017

1 files changed, 6 insertions, 1 deletions

diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h
index fd29865c8475e..a37a16784e2ac 100644
--- a/include/llvm/Support/MathExtras.h
+++ b/include/llvm/Support/MathExtras.h
@@ -424,7 +424,7 @@ constexpr inline bool isPowerOf2_32(uint32_t Value) {
 
 /// Return true if the argument is a power of two > 0 (64 bit edition.)
 constexpr inline bool isPowerOf2_64(uint64_t Value) {
-  return Value && !(Value & (Value - int64_t(1L)));
+  return Value && !(Value & (Value - 1));
 }
 
 /// Return a byte-swapped representation of the 16-bit argument.
@@ -687,6 +687,11 @@ template <uint64_t Align> constexpr inline uint64_t alignTo(uint64_t Value) {
   return (Value + Align - 1) / Align * Align;
 }
 
+/// Returns the integer ceil(Numerator / Denominator).
+inline uint64_t divideCeil(uint64_t Numerator, uint64_t Denominator) {
+  return alignTo(Numerator, Denominator) / Denominator;
+}
+
 /// \c alignTo for contexts where a constant expression is required.
 /// \sa alignTo
 ///