[libcxx-commits] [libcxx] [libc++] Implement single element vector::insert in terms of emplace (PR #210284)

[Louis Dionne via libcxx-commits]

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@@ -375,10 +447,34 @@ void sequence_container_benchmarks(std::string container) {
             c.erase(c.end() - BatchSize, c.end());
           }
         });
+
+        bench("emplace_back() (with reserve)" + tostr(gen), [gen](auto& st) {
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ldionne wrote:

As you noticed, we don't care about the number of elements already in the vector, since it's always constant time. We could probably benchmark this only for 8000 something elements.

https://github.com/llvm/llvm-project/pull/210284