https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123317
--- Comment #3 from Li Pan <pan2.li at intel dot com> --- -O2 can also reproduce this mis-optimization. -O3 can NOT reproduce this mis-optimization. BTW, there is another issue that --param=gpr2vr-cost=128 is expected to fail the wx combine but not work either.
