[Bug tree-optimization/97760] GCC outputs wrong values when compiling the testcase with -O3

[yangyang305 at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97760

--- Comment #1 from yangyang <yangyang305 at huawei dot com> ---
Created attachment 49521
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49521&action=edit
testcase