Snapshot gcc-9-20210506 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/9-20210506/
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 702e2995f871becf8c1dbd352a8013d672fe4ad1

You'll find:

 gcc-9-20210506.tar.xz                Complete GCC

  SHA256=7d451f3997276f2263f13ec7a1f40ff6b4aab0ea5274960d6831911982e13eec
  SHA1=742545f333e85987c40ee461faae7409b409850c

Diffs from 9-20210429 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.