From 7ee5d1913c7cfd0261f86b0ff7be6968b8c07d84 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Fri, 28 Aug 2026 23:56:19 +0800
Subject: [Support] Use standard power-of-two checks

---
 backend/lib/MC/MCSection.cpp | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'backend/lib/MC/MCSection.cpp')

diff --git a/backend/lib/MC/MCSection.cpp b/backend/lib/MC/MCSection.cpp
index 21ba410..464dcc6 100644
--- a/backend/lib/MC/MCSection.cpp
+++ b/backend/lib/MC/MCSection.cpp
@@ -2,6 +2,7 @@
 
 #include "rcc/MC/MCSection.h"
 
+#include <bit>
 #include <cstdint>
 #include <string_view>
 
@@ -19,16 +20,12 @@ namespace {
   return true;
 }
 
-[[nodiscard]] bool isPowerOfTwo(std::uint64_t Value) noexcept {
-  return Value != 0 && (Value & (Value - 1U)) == 0;
-}
-
 } // namespace
 
 Expected<void> MCSectionDesc::verify() const {
   if (!isValidAssemblyName(Name))
     return makeUnexpected(ErrorCode::InvalidArgument, "MC section has an invalid name");
-  if (!isPowerOfTwo(Alignment)) {
+  if (!std::has_single_bit(Alignment)) {
     return makeUnexpected(ErrorCode::InvalidArgument,
                           "MC section alignment must be a nonzero power of two");
   }
-- 
cgit v1.2.3