diff options
| -rw-r--r-- | src/intel/compiler/brw_nir.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c index 370b66dc57d..238db902b47 100644 --- a/src/intel/compiler/brw_nir.c +++ b/src/intel/compiler/brw_nir.c @@ -853,6 +853,26 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler, OPT(brw_nir_opt_peephole_ffma); } + if (OPT(nir_opt_comparison_pre)) { + OPT(nir_copy_prop); + OPT(nir_opt_dce); + OPT(nir_opt_cse); + + /* Do the select peepehole again. nir_opt_comparison_pre (combined with + * the other optimization passes) will have removed at least one + * instruction from one of the branches of the if-statement, so now it + * might be under the threshold of conversion to bcsel. + * + * See brw_nir_optimize for the explanation of is_vec4_tessellation. + */ + const bool is_vec4_tessellation = !is_scalar && + (nir->info.stage == MESA_SHADER_TESS_CTRL || + nir->info.stage == MESA_SHADER_TESS_EVAL); + OPT(nir_opt_peephole_select, 0, is_vec4_tessellation, false); + OPT(nir_opt_peephole_select, 1, is_vec4_tessellation, + compiler->devinfo->gen >= 6); + } + OPT(nir_opt_algebraic_late); OPT(nir_lower_to_source_mods, nir_lower_all_source_mods); |