https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106353
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |matz at gcc dot gnu.org --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC unrolls the outer loop it seems. We fail to have a "loop reorg" pass to flatten the loop hierarchy when that's possible. We might do unroll-and-jam for the outer loop (thus fuse the loops after unrolling).