4 ms·
Both clang and gcc do optimize it though - https://godbolt.org/z/cGG9dq756 https://godbolt.org/z/cGG9dq756. You need -fno-builtin or similar to get them to not.
by dzaima 10mo ago
Both clang and gcc do optimize it though - https://godbolt.org/z/cGG9dq756 https://godbolt.org/z/cGG9dq756. You need -fno-builtin or similar to get them to not.