[Bug target/82981] [7 Regression] unnecessary __multi3 call for mips64r6 linux kernel

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82981

--- Comment #17 from Christophe Lyon <clyon at gcc dot gnu.org> ---
The testcase passes on all the arm configs I am testing, on trunk, gcc-8 and
gcc-7.