GCC 9.5 Release Candidate available

[Richard Biener]

The first release candidate for GCC 9.5 is available from

https://sourceware.org/pub/gcc/snapshots/9.5.0-RC-20220520/

and shortly its mirrors.  It has been generated from git commit
1bc79c506205b6a5db82897340bdebaaf7ada934.

I have so far bootstrapped and tested the release candidate
on x86_64-suse-linux.

Please test it and report any issues to bugzilla.

If all goes well I'd like to release 9.5 on Friday, May 27th,
which will then close the branch.