GCC 12 at least on the latest-generation Intel "Alder Lake" processors certain;y seems to be moving in the right direction.

Here is the geometric mean across 87 different open-source benchmarks carried out on GCC 11.2 and GCC 12 Git. It's just slightly faster overall but as shown in some particular workloads are much more sizable improvements. See all of these initial Alder Lake GCC 12 compiler benchmarks on OpenBenchmarking.org.