https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101796
--- Comment #2 from Hongtao.liu <crazylht at gmail dot com> --- > 2. x86 backend use ix86_gen_scratch_sse_rtx (mode) which prevent > simplication. Correct: ix86_gen_scratch_sse_rtx doesn't prevent optimization here.
