https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105367
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #3) > Created attachment 52864 [details] > gcc12-pr105367-2.patch > > Variant patch (smaller, just i386 backend). Advantage of the first one is > that > we can use that elsewhere later on. This one is certainly obvious. I'm less sure about mapping back modes to _Float and then the corresponding library functions - can we not get into the situation choosing 'double' for SFmode (on targets where double == float) but the target only having sinf() but not sin()? I guess we have to be more clever wrt libm.libc_has_function () and choosing the function when we have multiple choices?
