[libcxx-commits] [libcxx] [libc++] Rewrite the std::pop_heap benchmark (PR #179911)

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<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- libcxx/test/benchmarks/algorithms/sorting/pop_heap.bench.cpp --diff_from_common_commit
``````````

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<details>
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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/test/benchmarks/algorithms/sorting/pop_heap.bench.cpp b/libcxx/test/benchmarks/algorithms/sorting/pop_heap.bench.cpp
index ad0ca8bff..d545daa12 100644
--- a/libcxx/test/benchmarks/algorithms/sorting/pop_heap.bench.cpp
+++ b/libcxx/test/benchmarks/algorithms/sorting/pop_heap.bench.cpp
@@ -18,22 +18,29 @@
 
 int main(int argc, char** argv) {
   auto bm = []<class Container>(std::type_identity<Container>, std::string name) {
-    benchmark::RegisterBenchmark(name, [](benchmark::State& state) {
-      std::size_t size = state.range(0);
-
-      Container c;
-      std::generate_n(std::back_inserter(c), size, [] { return Generate<typename Container::value_type>::random(); });
-
-      while (state.KeepRunningBatch(size)) {
-        state.PauseTiming();
-        std::make_heap(c.begin(), c.end());
-        state.ResumeTiming();
-
-        for (auto first = c.begin(), last = c.end(); last != first; --last) {
-          std::pop_heap(first, last);
-        }
-      }
-    })->Arg(8)->Arg(1024)->Arg(8192);
+    benchmark::RegisterBenchmark(
+        name,
+        [](benchmark::State& state) {
+          std::size_t size = state.range(0);
+
+          Container c;
+          std::generate_n(std::back_inserter(c), size, [] {
+            return Generate<typename Container::value_type>::random();
+          });
+
+          while (state.KeepRunningBatch(size)) {
+            state.PauseTiming();
+            std::make_heap(c.begin(), c.end());
+            state.ResumeTiming();
+
+            for (auto first = c.begin(), last = c.end(); last != first; --last) {
+              std::pop_heap(first, last);
+            }
+          }
+        })
+        ->Arg(8)
+        ->Arg(1024)
+        ->Arg(8192);
   };
 
   bm(std::type_identity<std::vector<int>>{}, "std::pop_heap(vector<int>)");

``````````

</details>


https://github.com/llvm/llvm-project/pull/179911