On Thu, Feb 13, 2025 at 09:24:02AM +0100, Samuel Thibault wrote: > Hello, > > Fabian Grünbichler, le jeu. 13 févr. 2025 08:11:14 +0100, a ecrit: > > A mixed approach (raising the baseline to allow LLVM and rustc to bump > > their targets, but keeping GCC's default target and thus the majority of > > packages at the current/old baseline and skip the rebuilds there) might > > be possible, but also has potential perfomance or bugginess implications > > because of switching back and forth between x87 and SSE floating > > operations. > > Which kind of bug? AIUI raising the baseline does not change the > function call ABI, and within a function we use only one compiler?
I am not aware of any (and my quick check yesterday indicates that mixing like that shouldn't be an issue) - but I also haven't done any in-depth research that would make me confident in saying that I'd rule them out ;) the potential performance issue was raised by doko on IRC. Regards, Fabian
