[Bug go/94633] golang 1.14.2 fails to bootstrap using GCC 10 on riscv64-linux-gnu

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94633

--- Comment #2 from Ian Lance Taylor <ian at airs dot com> ---
See https://gcc.gnu.org/PR94611 and https://gcc.gnu.org/PR94466.