https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90125
--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> --- L(In reply to Jakub Jelinek from comment #2) > Created attachment 46186 [details] > gcc9-pr90125.patch > > Oops, you're right, thanks for noticing. > Here is a full patch including testcases that FAIL without the header patch > and succeed with that. Two tests failed, because the tests rely on actually > using fma and at -O0 for the C code fma is not used and so there is a small > difference, I've just tweaked constants so that it passes regardless. LGTM.