[Bug sanitizer/94139] GCC9.2.0 build GCC8.2.0 break

[kangshan0910 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94139

--- Comment #2 from 康 珊 <kangshan0910 at hotmail dot com> ---
This is a benchmark from phoronix
(https://openbenchmarking.org/test/pts/build-gcc-1.1.2). The benchmark uses
gcc-8.2.0.