From: Jason Ekstrand Date: Thu, 26 Jul 2018 05:52:39 +0000 (-0700) Subject: intel/nir: Split IO arrays into elements X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b0bb547f782301199e75dc107ac335faf4eb990c;p=mesa.git intel/nir: Split IO arrays into elements The NIR nir_lower_io_arrays_to_elements pass attempts to split I/O variables which are arrays or matrices into a sequence of separate variables. This can help link-time optimization by allowing us to remove varyings at a more granular level. Shader-db results on Kaby Lake: total instructions in shared programs: 15177645 -> 15168494 (-0.06%) instructions in affected programs: 79857 -> 70706 (-11.46%) helped: 392 HURT: 0 Reviewed-by: Timothy Arceri Reviewed-by: Kenneth Graunke --- diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c index 17ccfa48af6..29ad68fdb2a 100644 --- a/src/intel/compiler/brw_nir.c +++ b/src/intel/compiler/brw_nir.c @@ -709,6 +709,10 @@ void brw_nir_link_shaders(const struct brw_compiler *compiler, nir_shader **producer, nir_shader **consumer) { + nir_lower_io_arrays_to_elements(*producer, *consumer); + nir_validate_shader(*producer); + nir_validate_shader(*consumer); + NIR_PASS_V(*producer, nir_remove_dead_variables, nir_var_shader_out); NIR_PASS_V(*consumer, nir_remove_dead_variables, nir_var_shader_in);