https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69197
jiaxun <jia1546 at 163 dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jia1546 at 163 dot com --- Comment #5 from jiaxun <jia1546 at 163 dot com> --- I also meet this problem and I tried the solution provided by Andrew Pinski and it works!. Thank you for Andrew Pinski.