From: Daniel Schürmann Date: Wed, 29 Apr 2020 14:36:41 +0000 (+0100) Subject: nir: also move b2i in case of nir_move_copies X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e4281dbecc69495d01ddf4b21cddc92085f1cae0;p=mesa.git nir: also move b2i in case of nir_move_copies Booleans are often more efficient with register usage. This also allows to move comparisons further. Totals from affected shaders: (VEGA) SGPRS: 451608 -> 450320 (-0.29 %) VGPRS: 351448 -> 351256 (-0.05 %) Spilled SGPRs: 105 -> 105 (0.00 %) Spilled VGPRs: 0 -> 0 (0.00 %) Private memory VGPRs: 0 -> 0 (0.00 %) Scratch size: 1008 -> 1008 (0.00 %) dwords per thread Code Size: 26555596 -> 26551080 (-0.02 %) bytes LDS: 10323 -> 10323 (0.00 %) blocks Max Waves: 42850 -> 42934 (0.20 %) Reviewed-by: Alyssa Rosenzweig Reviewed-by: Rhys Perry Reviewed-by: Marek Olšák Part-of: --- diff --git a/src/compiler/nir/nir_opt_sink.c b/src/compiler/nir/nir_opt_sink.c index 1d551fe9f8b..03feacfedec 100644 --- a/src/compiler/nir/nir_opt_sink.c +++ b/src/compiler/nir/nir_opt_sink.c @@ -45,7 +45,8 @@ nir_can_move_instr(nir_instr *instr, nir_move_options options) return options & nir_move_const_undef; } case nir_instr_type_alu: { - if (nir_op_is_vec(nir_instr_as_alu(instr)->op)) + if (nir_op_is_vec(nir_instr_as_alu(instr)->op) || + nir_instr_as_alu(instr)->op == nir_op_b2i32) return options & nir_move_copies; if (nir_alu_instr_is_comparison(nir_instr_as_alu(instr))) return options & nir_move_comparisons;