[libcxx-commits] [libcxx] [libc++] Add `__find_end` optimizations back (PR #171374)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h -- libcxx/include/__algorithm/find_end.h --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__algorithm/find_end.h b/libcxx/include/__algorithm/find_end.h
index 61b7a6f07..84b43e31a 100644
--- a/libcxx/include/__algorithm/find_end.h
+++ b/libcxx/include/__algorithm/find_end.h
@@ -112,8 +112,8 @@ _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_Iter1, _Iter1> __find_
     }
     // *__l1 matches *__l2, now match elements before here
     _Iter1 __match_last = __l1;
-    _Iter1 __m1 = __l1;
-    _Iter2 __m2 = __l2;
+    _Iter1 __m1         = __l1;
+    _Iter2 __m2         = __l2;
     while (true) {
       if (__m2 == __first2) // If pattern exhausted, __m1 is the answer (works for 1 element pattern)
         return std::make_pair(__m1, ++__match_last);

``````````

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https://github.com/llvm/llvm-project/pull/171374