Hi! On Tue, Feb 11, 2020 at 03:46:05PM +0300, Roman Zhuykov wrote: > Hmm, even when trying to move it just few passes earlier many years ago, > got another opinion: > https://gcc.gnu.org/ml/gcc-patches/2011-10/msg01526.html > Although without such a move we still have annoying issues which RTL > folks can't solve, see e.q. > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93264#c2
Basic block partitioning has wildly disproportionate fallout in all later passes, both in terms of what those *do* (or don't, if partitioning is enabled), and of impact on the code (not to mention developer time). Maybe the implementation can be improved, but probably we should do this in a different way altogether. The current situation is not good. Segher
