From e7496fed2a2428b704b8aeab5f42df8e6a2f7ae1 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Tue, 22 Sep 2015 16:57:03 -0700 Subject: [PATCH] prog_to_nir: Use nir_op_dph Shader-db results on HSW: instructions in affected programs: 72 -> 56 (-22.22%) Reviewed-by: Matt Turner Reviewed-by: Kenneth Graunke --- src/mesa/program/prog_to_nir.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/mesa/program/prog_to_nir.c b/src/mesa/program/prog_to_nir.c index ec61100356a..1bd735a47bb 100644 --- a/src/mesa/program/prog_to_nir.c +++ b/src/mesa/program/prog_to_nir.c @@ -527,8 +527,7 @@ ptn_dp4(nir_builder *b, nir_alu_dest dest, nir_ssa_def **src) static void ptn_dph(nir_builder *b, nir_alu_dest dest, nir_ssa_def **src) { - nir_ssa_def *dp3 = nir_fdot3(b, src[0], src[1]); - ptn_move_dest(b, dest, nir_fadd(b, dp3, ptn_channel(b, src[1], W))); + ptn_move_dest(b, dest, nir_fdph(b, src[0], src[1])); } static void -- 2.30.2