Snapshot gcc-9-20210520 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/9-20210520/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.

This snapshot has been generated from the GCC 9 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch releases/gcc-9 revision 5bd98868260de9cfc44224cf3833eb86e95d7c47

You'll find:

 gcc-9-20210520.tar.xz                Complete GCC

  SHA256=0d71e1410b2b03a79d6c77c1d4aff1f9a2995877892f906c227612bb48838831
  SHA1=8620eb141e82f2f522dd5ca0aa43c79902bf3e3d

Diffs from 9-20210513 are available in the diffs/ subdirectory.

When a particular snapshot is ready for public consumption the LATEST-9
link is updated and a message is sent to the gcc list.  Please do not use
a snapshot before it has been announced that way.