[Bug target/81874] internal compiler error: in do_SUBST, at combine.c:725

[zwzhangwen.zhang at huawei dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81874

--- Comment #4 from zwzhangwen.zhang at huawei dot com ---
I have checked it can be hidden or fixed in gcc.gnu.org/svn/gcc/trunk@239421
But it fixed PR71654 and it affected comparision expr?