#include "nir.h"
#include "nir_builder.h"
-static bool
-deref_apply_constant_initializer(nir_deref_var *deref, void *state)
+static void
+build_constant_load(nir_builder *b, nir_deref_instr *deref, nir_constant *c)
{
- struct nir_builder *b = state;
-
- nir_load_const_instr *initializer =
- nir_deref_get_const_initializer_load(b->shader, deref);
- nir_builder_instr_insert(b, &initializer->instr);
-
- nir_store_deref_var(b, deref, &initializer->def, 0xf);
-
- return true;
+ if (glsl_type_is_vector_or_scalar(deref->type)) {
+ nir_load_const_instr *load =
+ nir_load_const_instr_create(b->shader,
+ glsl_get_vector_elements(deref->type),
+ glsl_get_bit_size(deref->type));
+ load->value = c->values[0];
+ nir_builder_instr_insert(b, &load->instr);
+ nir_store_deref(b, deref, &load->def, ~0);
+ } else if (glsl_type_is_matrix(deref->type)) {
+ unsigned cols = glsl_get_matrix_columns(deref->type);
+ unsigned rows = glsl_get_vector_elements(deref->type);
+ unsigned bit_size = glsl_get_bit_size(deref->type);
+ for (unsigned i = 0; i < cols; i++) {
+ nir_load_const_instr *load =
+ nir_load_const_instr_create(b->shader, rows, bit_size);
+ load->value = c->values[i];
+ nir_builder_instr_insert(b, &load->instr);
+ nir_store_deref(b, nir_build_deref_array_imm(b, deref, i),
+ &load->def, ~0);
+ }
+ } else if (glsl_type_is_struct_or_ifc(deref->type)) {
+ unsigned len = glsl_get_length(deref->type);
+ for (unsigned i = 0; i < len; i++) {
+ build_constant_load(b, nir_build_deref_struct(b, deref, i),
+ c->elements[i]);
+ }
+ } else {
+ assert(glsl_type_is_array(deref->type));
+ unsigned len = glsl_get_length(deref->type);
+ for (unsigned i = 0; i < len; i++) {
+ build_constant_load(b,
+ nir_build_deref_array_imm(b, deref, i),
+ c->elements[i]);
+ }
+ }
}
static bool
progress = true;
- nir_deref_var deref;
- deref.deref.deref_type = nir_deref_type_var,
- deref.deref.child = NULL;
- deref.deref.type = var->type,
- deref.var = var;
-
- nir_deref_foreach_leaf(&deref, deref_apply_constant_initializer, b);
+ build_constant_load(b, nir_build_deref_var(b, var),
+ var->constant_initializer);
var->constant_initializer = NULL;
}
{
bool progress = false;
- nir_builder builder;
- if (modes & ~nir_var_local)
- nir_builder_init(&builder, nir_shader_get_entrypoint(shader));
+ nir_foreach_function(function, shader) {
+ if (!function->impl)
+ continue;
- if (modes & nir_var_shader_out)
- progress |= lower_const_initializer(&builder, &shader->outputs);
+ bool impl_progress = false;
- if (modes & nir_var_global)
- progress |= lower_const_initializer(&builder, &shader->globals);
+ nir_builder builder;
+ nir_builder_init(&builder, function->impl);
- if (modes & nir_var_system_value)
- progress |= lower_const_initializer(&builder, &shader->system_values);
+ if ((modes & nir_var_shader_out) && function->is_entrypoint)
+ impl_progress |= lower_const_initializer(&builder, &shader->outputs);
- if (progress) {
- nir_foreach_function(function, shader) {
- if (function->impl) {
- nir_metadata_preserve(function->impl, nir_metadata_block_index |
- nir_metadata_dominance |
- nir_metadata_live_ssa_defs);
- }
- }
- }
+ if ((modes & nir_var_shader_temp) && function->is_entrypoint)
+ impl_progress |= lower_const_initializer(&builder, &shader->globals);
+
+ if ((modes & nir_var_system_value) && function->is_entrypoint)
+ impl_progress |= lower_const_initializer(&builder, &shader->system_values);
+
+ if (modes & nir_var_function_temp)
+ impl_progress |= lower_const_initializer(&builder, &function->impl->locals);
- if (modes & nir_var_local) {
- nir_foreach_function(function, shader) {
- if (!function->impl)
- continue;
-
- nir_builder_init(&builder, function->impl);
- if (lower_const_initializer(&builder, &function->impl->locals)) {
- nir_metadata_preserve(function->impl, nir_metadata_block_index |
- nir_metadata_dominance |
- nir_metadata_live_ssa_defs);
- progress = true;
- }
+ if (impl_progress) {
+ progress = true;
+ nir_metadata_preserve(function->impl, nir_metadata_block_index |
+ nir_metadata_dominance |
+ nir_metadata_live_ssa_defs);
+ } else {
+#ifndef NDEBUG
+ function->impl->valid_metadata &= ~nir_metadata_not_properly_reset;
+#endif
}
}