https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86174
Alexander Monakov <amonakov at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amonakov at gcc dot gnu.org --- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> --- It might be useful to note that what the testcase "wants" to happen is for the compiler to notice that the temporary array 'double C[Si][Sk]' does not need to live in memory - ideally it would correspond to 8 256-bit (or 4 512-bit) registers.