Replace BitUtils with C++20: RotateLeft/RotateRight

Now that we've flipped the C++20 switch, let's start making use of
the nice new <bit> header.

I'm planning on handling this move away from BitUtils.h incrementally
in a series of PRs. There may be a few functions remaining in
BitUtils.h by the end that C++20 doesn't have any equivalents for.

1 files changed, 0 insertions, 44 deletions

diff --git a/Source/Core/Common/BitUtils.h b/Source/Core/Common/BitUtils.h
index 60a6abdc25..273e2a2227 100644
--- a/Source/Core/Common/BitUtils.h
+++ b/Source/Core/Common/BitUtils.h
@@ -108,50 +108,6 @@ constexpr Result ExtractBits(const T src) noexcept
 }
 
 ///
-/// Rotates a value left (ROL).
-///
-/// @param  value  The value to rotate.
-/// @param  amount The number of bits to rotate the value.
-/// @tparam T      An unsigned type.
-///
-/// @return The rotated value.
-///
-template <typename T>
-constexpr T RotateLeft(const T value, size_t amount) noexcept
-{
-  static_assert(std::is_unsigned<T>(), "Can only rotate unsigned types left.");
-
-  amount %= BitSize<T>();
-
-  if (amount == 0)
-    return value;
-
-  return static_cast<T>((value << amount) | (value >> (BitSize<T>() - amount)));
-}
-
-///
-/// Rotates a value right (ROR).
-///
-/// @param  value  The value to rotate.
-/// @param  amount The number of bits to rotate the value.
-/// @tparam T      An unsigned type.
-///
-/// @return The rotated value.
-///
-template <typename T>
-constexpr T RotateRight(const T value, size_t amount) noexcept
-{
-  static_assert(std::is_unsigned<T>(), "Can only rotate unsigned types right.");
-
-  amount %= BitSize<T>();
-
-  if (amount == 0)
-    return value;
-
-  return static_cast<T>((value >> amount) | (value << (BitSize<T>() - amount)));
-}
-
-///
 /// Verifies whether the supplied value is a valid bit mask of the form 0b00...0011...11.
 /// Both edge cases of all zeros and all ones are considered valid masks, too.
 ///