https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77308
--- Comment #44 from wilco at gcc dot gnu.org --- (In reply to Bernd Edlinger from comment #38) > Created attachment 39939 [details] > proposed patch, v2 > > Unlike the previous patch, thumb1 stack usage stays at 1588 bytes, > because thumb1 cannot split the adddi3 pattern, once it is emitted. We can split into a new pattern that contains adds/adc together. Splitting should help Thumb-1 the most as it has just 3 allocatable DI mode registers...
