Re: [PATCH V3] Split vector load from parm_del to elemental loads to avoid STLF stalls.

On Fri, Apr 1, 2022 at 4:32 PM liuhongt via Gcc-patches wrote: > > Update in V3: > 1. Add -param=x86-stlf-window-ninsns= (default 64). > 2. Exclude call in the window. > > Since cfg is freed before machine_reorg, just do a rough calculation > of the window according to the layout. > Also according

[PATCH V3] Split vector load from parm_del to elemental loads to avoid STLF stalls.

Update in V3: 1. Add -param=x86-stlf-window-ninsns= (default 64). 2. Exclude call in the window. Since cfg is freed before machine_reorg, just do a rough calculation of the window according to the layout. Also according to an experiment on CLX, set window size to 64. Currently only handle V2DFmod