The first release candidate for GCC 5.1 is available from ftp://gcc.gnu.org/pub/gcc/snapshots/5.1.0-RC-20150412
and shortly its mirrors. It has been generated from SVN revision 222032. I have so far bootstrapped and tested the release candidate on x86_64-linux and i686-linux. Please test it and report any issues to bugzilla. If all goes well, I'd like to release 5.1 on Wednesday, 22nd.
