From f69cbb2b53ac3edf7b201ba77430a61471edfa6e Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Thu, 11 Jan 2018 12:47:31 +1100 Subject: [PATCH] st/glsl_to_nir: disable io lowering to temps for tess MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Lowering these to temps makes a big mess, and results in some piglit test failures. Also the radeonsi backend (the only backend to support tess) has support for indirects so there is no need to lower them anyway. Fixes the following piglit tests on radeonsi: tests/spec/arb_tessellation_shader/execution/variable-indexing/tes-input-array-vec3-index-rd.shader_test tests/spec/arb_tessellation_shader/execution/variable-indexing/tes-input-array-vec4-index-rd.shader_test Reviewed-by: Marek Olšák --- src/mesa/state_tracker/st_glsl_to_nir.cpp | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp b/src/mesa/state_tracker/st_glsl_to_nir.cpp index 1c5de3d..bd6d588 100644 --- a/src/mesa/state_tracker/st_glsl_to_nir.cpp +++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp @@ -490,9 +490,12 @@ st_nir_get_mesa_program(struct gl_context *ctx, set_st_program(prog, shader_program, nir); prog->nir = nir; - NIR_PASS_V(nir, nir_lower_io_to_temporaries, - nir_shader_get_entrypoint(nir), - true, true); + if (nir->info.stage != MESA_SHADER_TESS_CTRL && + nir->info.stage != MESA_SHADER_TESS_EVAL) { + NIR_PASS_V(nir, nir_lower_io_to_temporaries, + nir_shader_get_entrypoint(nir), + true, true); + } NIR_PASS_V(nir, nir_lower_global_vars_to_local); NIR_PASS_V(nir, nir_split_var_copies); NIR_PASS_V(nir, nir_lower_var_copies); @@ -665,7 +668,8 @@ st_finalize_nir(struct st_context *st, struct gl_program *prog, NIR_PASS_V(nir, nir_split_var_copies); NIR_PASS_V(nir, nir_lower_var_copies); - if (nir->info.stage != MESA_SHADER_TESS_CTRL) + if (nir->info.stage != MESA_SHADER_TESS_CTRL && + nir->info.stage != MESA_SHADER_TESS_EVAL) NIR_PASS_V(nir, nir_lower_io_arrays_to_elements_no_indirects); if (nir->info.stage == MESA_SHADER_VERTEX) { -- 2.7.4