[Bug tree-optimization/81740] [6/7/8 Regression] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81740

--- Comment #5 from amker at gcc dot gnu.org ---
Hi Richard, I checked your proposal last time, I tend to think it will result
in an equivalent patch of mine somehow.  But I could be wrong, and it's long
time ago (last year).

Thanks,