From 302884d121263455f460a0dc5f433689b8e1a32a Mon Sep 17 00:00:00 2001 From: Bas Nieuwenhuizen Date: Wed, 25 Apr 2018 17:07:16 +0200 Subject: [PATCH] radv: Gather info for deref instr based load/store. Acked-by: Rob Clark Acked-by: Bas Nieuwenhuizen Acked-by: Dave Airlie Reviewed-by: Kenneth Graunke --- src/amd/vulkan/radv_shader_info.c | 60 +++++++++++++++++++++++++++++++++++---- 1 file changed, 55 insertions(+), 5 deletions(-) diff --git a/src/amd/vulkan/radv_shader_info.c b/src/amd/vulkan/radv_shader_info.c index 448babb..5ef7d74 100644 --- a/src/amd/vulkan/radv_shader_info.c +++ b/src/amd/vulkan/radv_shader_info.c @@ -23,6 +23,7 @@ #include "radv_private.h" #include "radv_shader.h" #include "nir/nir.h" +#include "nir/nir_deref.h" static void mark_sampler_desc(const nir_variable *var, struct radv_shader_info *info) @@ -88,14 +89,57 @@ static void get_deref_offset(nir_deref_var *deref, unsigned *const_out) } static void +get_deref_instr_offset(nir_deref_instr *instr, + unsigned *const_out) +{ + nir_variable *var = nir_deref_instr_get_variable(instr); + nir_deref_path path; + unsigned idx_lvl = 1; + + if (var->data.compact) { + assert(instr->deref_type == nir_deref_type_array); + nir_const_value *v = nir_src_as_const_value(instr->arr.index); + assert(v); + *const_out = v->u32[0]; + return; + } + + nir_deref_path_init(&path, instr, NULL); + + uint32_t const_offset = 0; + + for (; path.path[idx_lvl]; ++idx_lvl) { + const struct glsl_type *parent_type = path.path[idx_lvl - 1]->type; + if (path.path[idx_lvl]->deref_type == nir_deref_type_struct) { + unsigned index = path.path[idx_lvl]->strct.index; + + for (unsigned i = 0; i < index; i++) { + const struct glsl_type *ft = glsl_get_struct_field(parent_type, i); + const_offset += glsl_count_attribute_slots(ft, false); + } + } else if(path.path[idx_lvl]->deref_type == nir_deref_type_array) { + unsigned size = glsl_count_attribute_slots(path.path[idx_lvl]->type, false); + nir_const_value *v = nir_src_as_const_value(path.path[idx_lvl]->arr.index); + if (v) + const_offset += v->u32[0] * size; + } else + unreachable("Uhandled deref type in get_deref_instr_offset"); + } + + *const_out = const_offset; + + nir_deref_path_finish(&path); +} + +static void gather_intrinsic_load_var_info(const nir_shader *nir, const nir_intrinsic_instr *instr, struct radv_shader_info *info) { switch (nir->info.stage) { case MESA_SHADER_VERTEX: { - nir_deref_var *dvar = instr->variables[0]; - nir_variable *var = dvar->var; + nir_variable *var = instr->intrinsic == nir_intrinsic_load_var ? instr->variables[0]->var : + nir_deref_instr_get_variable(nir_instr_as_deref(instr->src[0].ssa->parent_instr)); if (var->data.mode == nir_var_shader_in) { unsigned idx = var->data.location; @@ -116,8 +160,8 @@ gather_intrinsic_store_var_info(const nir_shader *nir, const nir_intrinsic_instr *instr, struct radv_shader_info *info) { - nir_deref_var *dvar = instr->variables[0]; - nir_variable *var = dvar->var; + nir_variable *var = instr->intrinsic == nir_intrinsic_store_var ? instr->variables[0]->var : + nir_deref_instr_get_variable(nir_instr_as_deref(instr->src[0].ssa->parent_instr)); if (var->data.mode == nir_var_shader_out) { unsigned attrib_count = glsl_count_attribute_slots(var->type, false); @@ -125,7 +169,10 @@ gather_intrinsic_store_var_info(const nir_shader *nir, unsigned comp = var->data.location_frac; unsigned const_offset = 0; - get_deref_offset(dvar, &const_offset); + if (instr->intrinsic == nir_intrinsic_store_var) + get_deref_offset(instr->variables[0], &const_offset); + else + get_deref_instr_offset(nir_instr_as_deref(instr->src[0].ssa->parent_instr), &const_offset); switch (nir->info.stage) { case MESA_SHADER_VERTEX: @@ -176,6 +223,7 @@ gather_intrinsic_info(const nir_shader *nir, const nir_intrinsic_instr *instr, { switch (instr->intrinsic) { case nir_intrinsic_interp_var_at_sample: + case nir_intrinsic_interp_deref_at_sample: info->ps.needs_sample_positions = true; break; case nir_intrinsic_load_draw_id: @@ -314,9 +362,11 @@ gather_intrinsic_info(const nir_shader *nir, const nir_intrinsic_instr *instr, info->ps.writes_memory = true; break; case nir_intrinsic_load_var: + case nir_intrinsic_load_deref: gather_intrinsic_load_var_info(nir, instr, info); break; case nir_intrinsic_store_var: + case nir_intrinsic_store_deref: gather_intrinsic_store_var_info(nir, instr, info); break; default: -- 2.7.4