Module: Mesa Branch: master Commit: fc11dbe13f3470ff2a4cb91c6b063db2456664da URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fc11dbe13f3470ff2a4cb91c6b063db2456664da
Author: Jason Ekstrand <[email protected]> Date: Tue Sep 8 16:45:57 2015 -0700 i965/vec4: Use nir_move_vec_src_uses_to_dest The idea here is not that it gives register coalescing a little bit of a helping hand. It doesn't actually fix the coalescing problems, but it seems to help a good bit. Shader-db results for vec4 programs on Haswell: total instructions in shared programs: 1746280 -> 1683959 (-3.57%) instructions in affected programs: 1259166 -> 1196845 (-4.95%) helped: 11363 HURT: 148 v2 (Jason Ekstrand): - Run nir_move_vec_src_uses_to_dest after going out of SSA - New shader-db numbers Reviewed-by: Eduardo Lima Mitev <[email protected]> --- src/mesa/drivers/dri/i965/brw_nir.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c index f326b23..9a0bbb0 100644 --- a/src/mesa/drivers/dri/i965/brw_nir.c +++ b/src/mesa/drivers/dri/i965/brw_nir.c @@ -187,6 +187,9 @@ brw_create_nir(struct brw_context *brw, nir_validate_shader(nir); if (!is_scalar) { + nir_move_vec_src_uses_to_dest(nir); + nir_validate_shader(nir); + nir_lower_vec_to_movs(nir); nir_validate_shader(nir); } _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
