https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122103
--- Comment #20 from ktkachov at gcc dot gnu.org --- (In reply to Tamar Christina from comment #19) > (In reply to [email protected] from comment #18) > > On Mon, 5 Jan 2026, tnfchris at gcc dot gnu.org wrote: > > > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122103 > > > > > > Tamar Christina <tnfchris at gcc dot gnu.org> changed: > > > > > > What |Removed |Added > > > ---------------------------------------------------------------------------- > > > Summary|[15/16 Regression] SVE |[15 Regression] SVE > > > |vectorisation not honoring |vectorisation not > > > honoring > > > |-ftrapping-math |-ftrapping-math > > > > > > --- Comment #16 from Tamar Christina <tnfchris at gcc dot gnu.org> --- > > > Fixed on trunk so far, not sure if backporting makes sense as it's pretty > > > much > > > never been correct. > > > > It's a bit large of a change and definitely needs soaking time, so > > possibly only for GCC 15.3, but even maybe not to that. > > Agreed. A middle ground might be to only backport the gimple_could_trap and > if-cvt change. This would prevent the wrong codegen since the bug was > reported on GCC 15. > > But indeed probably should be revisited once we see what falls out from the > change. Fixing it in GCC 15.3 would be great if the risk is acceptable. The user reported they can live with a GCC 16-only fix too, but it'd be good to have it in the 15-series too
