This patch by Andreas Schwab adds 64-bit RISC-V support to libgo.
Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.  Committed
to mainline.

Ian


2018-02-22  Andreas Schwab  <schwab@linux-m68k.org>

* go.test/go-test.exp (go-set-goarch): Recognize riscv64-*-*.