* IN THE SOFTWARE.
*/
-#include "main/mtypes.h"
#include "nir.h"
+#include "main/menums.h"
static void
-set_io_mask(nir_shader *shader, nir_variable *var, int offset, int len)
+set_io_mask(nir_shader *shader, nir_variable *var, int offset, int len,
+ bool is_output_read)
{
for (int i = 0; i < len; i++) {
assert(var->data.location != -1);
if (var->data.mode == nir_var_shader_in) {
if (is_patch_generic)
- shader->info->patch_inputs_read |= bitfield;
+ shader->info.patch_inputs_read |= bitfield;
else
- shader->info->inputs_read |= bitfield;
+ shader->info.inputs_read |= bitfield;
- if (shader->stage == MESA_SHADER_FRAGMENT) {
- shader->info->fs.uses_sample_qualifier |= var->data.sample;
+ if (shader->info.stage == MESA_SHADER_FRAGMENT) {
+ shader->info.fs.uses_sample_qualifier |= var->data.sample;
}
} else {
assert(var->data.mode == nir_var_shader_out);
- if (is_patch_generic) {
- shader->info->patch_outputs_written |= bitfield;
- } else if (!var->data.read_only) {
- shader->info->outputs_written |= bitfield;
- }
+ if (is_output_read) {
+ if (is_patch_generic) {
+ shader->info.patch_outputs_read |= bitfield;
+ } else {
+ shader->info.outputs_read |= bitfield;
+ }
+ } else {
+ if (is_patch_generic) {
+ shader->info.patch_outputs_written |= bitfield;
+ } else if (!var->data.read_only) {
+ shader->info.outputs_written |= bitfield;
+ }
+ }
+
if (var->data.fb_fetch_output)
- shader->info->outputs_read |= bitfield;
+ shader->info.outputs_read |= bitfield;
}
}
}
* represents a shader input or output.
*/
static void
-mark_whole_variable(nir_shader *shader, nir_variable *var)
+mark_whole_variable(nir_shader *shader, nir_variable *var, bool is_output_read)
{
const struct glsl_type *type = var->type;
- if (nir_is_per_vertex_io(var, shader->stage)) {
+ if (nir_is_per_vertex_io(var, shader->info.stage)) {
assert(glsl_type_is_array(type));
type = glsl_get_array_element(type);
}
var->data.compact ? DIV_ROUND_UP(glsl_get_length(type), 4)
: glsl_count_attribute_slots(type, false);
- set_io_mask(shader, var, 0, slots);
+ set_io_mask(shader, var, 0, slots, is_output_read);
}
static unsigned
-get_io_offset(nir_deref_var *deref)
+get_io_offset(nir_deref_instr *deref, bool is_vertex_input)
{
unsigned offset = 0;
- nir_deref *tail = &deref->deref;
- while (tail->child != NULL) {
- tail = tail->child;
-
- if (tail->deref_type == nir_deref_type_array) {
- nir_deref_array *deref_array = nir_deref_as_array(tail);
-
- if (deref_array->deref_array_type == nir_deref_array_type_indirect) {
+ for (nir_deref_instr *d = deref; d; d = nir_deref_instr_parent(d)) {
+ if (d->deref_type == nir_deref_type_array) {
+ if (!nir_src_is_const(d->arr.index))
return -1;
- }
- offset += glsl_count_attribute_slots(tail->type, false) *
- deref_array->base_offset;
+ offset += glsl_count_attribute_slots(d->type, is_vertex_input) *
+ nir_src_as_uint(d->arr.index);
}
/* TODO: we can get the offset for structs here see nir_lower_io() */
}
* occurs, then nothing will be marked and false will be returned.
*/
static bool
-try_mask_partial_io(nir_shader *shader, nir_deref_var *deref)
+try_mask_partial_io(nir_shader *shader, nir_variable *var,
+ nir_deref_instr *deref, bool is_output_read)
{
- nir_variable *var = deref->var;
const struct glsl_type *type = var->type;
- if (nir_is_per_vertex_io(var, shader->stage)) {
+ if (nir_is_per_vertex_io(var, shader->info.stage)) {
assert(glsl_type_is_array(type));
type = glsl_get_array_element(type);
}
return false;
}
- unsigned offset = get_io_offset(deref);
+ unsigned offset = get_io_offset(deref, false);
if (offset == -1)
return false;
}
/* double element width for double types that takes two slots */
- if (glsl_type_is_dual_slot(glsl_without_array(type))) {
+ if (glsl_type_is_dual_slot(glsl_without_array(type)))
elem_width *= 2;
- }
if (offset >= num_elems * elem_width * mat_cols) {
/* Constant index outside the bounds of the matrix/array. This could
return false;
}
- set_io_mask(shader, var, offset, elem_width);
+ set_io_mask(shader, var, offset, elem_width, is_output_read);
return true;
}
static void
-gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader)
+gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader,
+ void *dead_ctx)
{
switch (instr->intrinsic) {
+ case nir_intrinsic_demote:
+ case nir_intrinsic_demote_if:
case nir_intrinsic_discard:
case nir_intrinsic_discard_if:
- assert(shader->stage == MESA_SHADER_FRAGMENT);
- shader->info->fs.uses_discard = true;
+ assert(shader->info.stage == MESA_SHADER_FRAGMENT);
+ shader->info.fs.uses_discard = true;
break;
- case nir_intrinsic_interp_var_at_centroid:
- case nir_intrinsic_interp_var_at_sample:
- case nir_intrinsic_interp_var_at_offset:
- case nir_intrinsic_load_var:
- case nir_intrinsic_store_var: {
- nir_variable *var = instr->variables[0]->var;
-
- if (var->data.mode == nir_var_shader_in ||
- var->data.mode == nir_var_shader_out) {
- if (!try_mask_partial_io(shader, instr->variables[0]))
- mark_whole_variable(shader, var);
+ case nir_intrinsic_interp_deref_at_centroid:
+ case nir_intrinsic_interp_deref_at_sample:
+ case nir_intrinsic_interp_deref_at_offset:
+ case nir_intrinsic_load_deref:
+ case nir_intrinsic_store_deref:{
+ nir_deref_instr *deref = nir_src_as_deref(instr->src[0]);
+ if (deref->mode == nir_var_shader_in ||
+ deref->mode == nir_var_shader_out) {
+ nir_variable *var = nir_deref_instr_get_variable(deref);
+ bool is_output_read = false;
+ if (var->data.mode == nir_var_shader_out &&
+ instr->intrinsic == nir_intrinsic_load_deref)
+ is_output_read = true;
+
+ if (!try_mask_partial_io(shader, var, deref, is_output_read))
+ mark_whole_variable(shader, var, is_output_read);
/* We need to track which input_reads bits correspond to a
* dvec3/dvec4 input attribute */
- if (shader->stage == MESA_SHADER_VERTEX &&
+ if (shader->info.stage == MESA_SHADER_VERTEX &&
var->data.mode == nir_var_shader_in &&
glsl_type_is_dual_slot(glsl_without_array(var->type))) {
- for (uint i = 0; i < glsl_count_attribute_slots(var->type, false); i++) {
+ for (unsigned i = 0; i < glsl_count_attribute_slots(var->type, false); i++) {
int idx = var->data.location + i;
- shader->info->double_inputs_read |= BITFIELD64_BIT(idx);
+ shader->info.vs.double_inputs |= BITFIELD64_BIT(idx);
}
}
}
}
case nir_intrinsic_load_draw_id:
+ case nir_intrinsic_load_frag_coord:
+ case nir_intrinsic_load_point_coord:
case nir_intrinsic_load_front_face:
case nir_intrinsic_load_vertex_id:
case nir_intrinsic_load_vertex_id_zero_base:
case nir_intrinsic_load_base_vertex:
+ case nir_intrinsic_load_first_vertex:
+ case nir_intrinsic_load_is_indexed_draw:
case nir_intrinsic_load_base_instance:
case nir_intrinsic_load_instance_id:
case nir_intrinsic_load_sample_id:
case nir_intrinsic_load_tess_coord:
case nir_intrinsic_load_tess_level_outer:
case nir_intrinsic_load_tess_level_inner:
- shader->info->system_values_read |=
+ case nir_intrinsic_load_patch_vertices_in:
+ shader->info.system_values_read |=
(1ull << nir_system_value_from_intrinsic(instr->intrinsic));
break;
+ case nir_intrinsic_quad_broadcast:
+ case nir_intrinsic_quad_swap_horizontal:
+ case nir_intrinsic_quad_swap_vertical:
+ case nir_intrinsic_quad_swap_diagonal:
+ if (shader->info.stage == MESA_SHADER_FRAGMENT)
+ shader->info.fs.needs_helper_invocations = true;
+ break;
+
case nir_intrinsic_end_primitive:
case nir_intrinsic_end_primitive_with_counter:
- assert(shader->stage == MESA_SHADER_GEOMETRY);
- shader->info->gs.uses_end_primitive = 1;
+ assert(shader->info.stage == MESA_SHADER_GEOMETRY);
+ shader->info.gs.uses_end_primitive = 1;
+ /* fall through */
+
+ case nir_intrinsic_emit_vertex:
+ if (nir_intrinsic_stream_id(instr) > 0)
+ shader->info.gs.uses_streams = true;
+
break;
default:
static void
gather_tex_info(nir_tex_instr *instr, nir_shader *shader)
{
- if (instr->op == nir_texop_tg4)
- shader->info->uses_texture_gather = true;
+ if (shader->info.stage == MESA_SHADER_FRAGMENT &&
+ nir_tex_instr_has_implicit_derivative(instr))
+ shader->info.fs.needs_helper_invocations = true;
+
+ switch (instr->op) {
+ case nir_texop_tg4:
+ shader->info.uses_texture_gather = true;
+ break;
+ default:
+ break;
+ }
}
static void
-gather_info_block(nir_block *block, nir_shader *shader)
+gather_alu_info(nir_alu_instr *instr, nir_shader *shader)
+{
+ switch (instr->op) {
+ case nir_op_fddx:
+ case nir_op_fddy:
+ shader->info.uses_fddx_fddy = true;
+ /* Fall through */
+ case nir_op_fddx_fine:
+ case nir_op_fddy_fine:
+ case nir_op_fddx_coarse:
+ case nir_op_fddy_coarse:
+ if (shader->info.stage == MESA_SHADER_FRAGMENT)
+ shader->info.fs.needs_helper_invocations = true;
+ break;
+ default:
+ break;
+ }
+
+ shader->info.uses_64bit |= instr->dest.dest.ssa.bit_size == 64;
+ unsigned num_srcs = nir_op_infos[instr->op].num_inputs;
+ for (unsigned i = 0; i < num_srcs; i++) {
+ shader->info.uses_64bit |= nir_src_bit_size(instr->src[i].src) == 64;
+ }
+}
+
+static void
+gather_info_block(nir_block *block, nir_shader *shader, void *dead_ctx)
{
nir_foreach_instr(instr, block) {
switch (instr->type) {
+ case nir_instr_type_alu:
+ gather_alu_info(nir_instr_as_alu(instr), shader);
+ break;
case nir_instr_type_intrinsic:
- gather_intrinsic_info(nir_instr_as_intrinsic(instr), shader);
+ gather_intrinsic_info(nir_instr_as_intrinsic(instr), shader, dead_ctx);
break;
case nir_instr_type_tex:
gather_tex_info(nir_instr_as_tex(instr), shader);
void
nir_shader_gather_info(nir_shader *shader, nir_function_impl *entrypoint)
{
- shader->info->num_textures = 0;
- shader->info->num_images = 0;
+ shader->info.num_textures = 0;
+ shader->info.num_images = 0;
nir_foreach_variable(var, &shader->uniforms) {
- const struct glsl_type *type = var->type;
- unsigned count = 1;
- if (glsl_type_is_array(type)) {
- count = glsl_get_aoa_size(type);
- type = glsl_without_array(type);
- }
-
- if (glsl_type_is_image(type)) {
- shader->info->num_images += count;
- } else if (glsl_type_is_sampler(type)) {
- shader->info->num_textures += count;
- }
+ shader->info.num_textures += glsl_type_get_sampler_count(var->type);
+ shader->info.num_images += glsl_type_get_image_count(var->type);
}
- shader->info->inputs_read = 0;
- shader->info->outputs_written = 0;
- shader->info->outputs_read = 0;
- shader->info->double_inputs_read = 0;
- shader->info->patch_inputs_read = 0;
- shader->info->patch_outputs_written = 0;
- shader->info->system_values_read = 0;
- if (shader->stage == MESA_SHADER_FRAGMENT) {
- shader->info->fs.uses_sample_qualifier = false;
+ shader->info.inputs_read = 0;
+ shader->info.outputs_written = 0;
+ shader->info.outputs_read = 0;
+ shader->info.patch_outputs_read = 0;
+ shader->info.patch_inputs_read = 0;
+ shader->info.patch_outputs_written = 0;
+ shader->info.system_values_read = 0;
+ if (shader->info.stage == MESA_SHADER_VERTEX) {
+ shader->info.vs.double_inputs = 0;
}
+ if (shader->info.stage == MESA_SHADER_FRAGMENT) {
+ shader->info.fs.uses_sample_qualifier = false;
+ }
+
+ void *dead_ctx = ralloc_context(NULL);
nir_foreach_block(block, entrypoint) {
- gather_info_block(block, shader);
+ gather_info_block(block, shader, dead_ctx);
}
+ ralloc_free(dead_ctx);
}
projects / mesa.git / blobdiff