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spirv: Simplify vtn_ssa_value creation

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For three different functions which create vtn_ssa_values, we had three
completely different implementations.  This unifies them all to roughly
the same algorithm.  While we're at it, we take advantage of the
nir_build_imm helper to avoid some extra code in vtn_const_ssa_value.

Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5278>
This commit is contained in:
Jason Ekstrand
2020-05-30 12:23:50 -05:00
parent 00af1128a9
commit 085ade4125
1 changed files with 36 additions and 95 deletions
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103
src/compiler/spirv/spirv_to_nir.c
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@@ -176,18 +176,12 @@ vtn_undef_ssa_value(struct vtn_builder *b, const struct glsl_type *type)
} else {
unsigned elems = glsl_get_length(val->type);
val->elems = ralloc_array(b, struct vtn_ssa_value *, elems);
if (glsl_type_is_matrix(type)) {
const struct glsl_type *elem_type =
glsl_vector_type(glsl_get_base_type(type),
glsl_get_vector_elements(type));
for (unsigned i = 0; i < elems; i++)
val->elems[i] = vtn_undef_ssa_value(b, elem_type);
} else if (glsl_type_is_array(type)) {
if (glsl_type_is_array_or_matrix(type)) {
const struct glsl_type *elem_type = glsl_get_array_element(type);
for (unsigned i = 0; i < elems; i++)
val->elems[i] = vtn_undef_ssa_value(b, elem_type);
} else {
vtn_assert(glsl_type_is_struct_or_ifc(type));
for (unsigned i = 0; i < elems; i++) {
const struct glsl_type *elem_type = glsl_get_struct_field(type, i);
val->elems[i] = vtn_undef_ssa_value(b, elem_type);
@@ -210,67 +204,34 @@ vtn_const_ssa_value(struct vtn_builder *b, nir_constant *constant,
struct vtn_ssa_value *val = rzalloc(b, struct vtn_ssa_value);
val->type = type;
switch (glsl_get_base_type(type)) {
case GLSL_TYPE_INT:
case GLSL_TYPE_UINT:
case GLSL_TYPE_INT16:
case GLSL_TYPE_UINT16:
case GLSL_TYPE_UINT8:
case GLSL_TYPE_INT8:
case GLSL_TYPE_INT64:
case GLSL_TYPE_UINT64:
case GLSL_TYPE_BOOL:
case GLSL_TYPE_FLOAT:
case GLSL_TYPE_FLOAT16:
case GLSL_TYPE_DOUBLE: {
int bit_size = glsl_get_bit_size(type);
if (glsl_type_is_vector_or_scalar(type)) {
unsigned num_components = glsl_get_vector_elements(val->type);
unsigned bit_size = glsl_get_bit_size(type);
nir_load_const_instr *load =
nir_load_const_instr_create(b->shader, num_components, bit_size);
memcpy(load->value, constant->values,
sizeof(nir_const_value) * load->def.num_components);
sizeof(nir_const_value) * num_components);
nir_instr_insert_before_cf_list(&b->nb.impl->body, &load->instr);
val->def = &load->def;
} else {
assert(glsl_type_is_matrix(type));
unsigned columns = glsl_get_matrix_columns(val->type);
val->elems = ralloc_array(b, struct vtn_ssa_value *, columns);
const struct glsl_type *column_type = glsl_get_column_type(val->type);
for (unsigned i = 0; i < columns; i++)
val->elems[i] = vtn_const_ssa_value(b, constant->elements[i],
column_type);
}
break;
}
case GLSL_TYPE_ARRAY: {
unsigned elems = glsl_get_length(val->type);
val->elems = ralloc_array(b, struct vtn_ssa_value *, elems);
const struct glsl_type *elem_type = glsl_get_array_element(val->type);
for (unsigned i = 0; i < elems; i++)
val->elems[i] = vtn_const_ssa_value(b, constant->elements[i],
elem_type);
break;
}
case GLSL_TYPE_STRUCT:
case GLSL_TYPE_INTERFACE: {
unsigned elems = glsl_get_length(val->type);
val->elems = ralloc_array(b, struct vtn_ssa_value *, elems);
if (glsl_type_is_array_or_matrix(type)) {
const struct glsl_type *elem_type = glsl_get_array_element(type);
for (unsigned i = 0; i < elems; i++) {
const struct glsl_type *elem_type =
glsl_get_struct_field(val->type, i);
val->elems[i] = vtn_const_ssa_value(b, constant->elements[i],
elem_type);
}
break;
} else {
vtn_assert(glsl_type_is_struct_or_ifc(type));
for (unsigned i = 0; i < elems; i++) {
const struct glsl_type *elem_type = glsl_get_struct_field(type, i);
val->elems[i] = vtn_const_ssa_value(b, constant->elements[i],
elem_type);
}
}
default:
vtn_fail("bad constant type");
}
return val;
@@ -2203,38 +2164,18 @@ vtn_create_ssa_value(struct vtn_builder *b, const struct glsl_type *type)
val->type = type;
if (!glsl_type_is_vector_or_scalar(type)) {
unsigned elems = glsl_get_length(type);
unsigned elems = glsl_get_length(val->type);
val->elems = ralloc_array(b, struct vtn_ssa_value *, elems);
if (glsl_type_is_array_or_matrix(type)) {
const struct glsl_type *elem_type = glsl_get_array_element(type);
for (unsigned i = 0; i < elems; i++)
val->elems[i] = vtn_create_ssa_value(b, elem_type);
} else {
vtn_assert(glsl_type_is_struct_or_ifc(type));
for (unsigned i = 0; i < elems; i++) {
const struct glsl_type *child_type;
switch (glsl_get_base_type(type)) {
case GLSL_TYPE_INT:
case GLSL_TYPE_UINT:
case GLSL_TYPE_INT16:
case GLSL_TYPE_UINT16:
case GLSL_TYPE_UINT8:
case GLSL_TYPE_INT8:
case GLSL_TYPE_INT64:
case GLSL_TYPE_UINT64:
case GLSL_TYPE_BOOL:
case GLSL_TYPE_FLOAT:
case GLSL_TYPE_FLOAT16:
case GLSL_TYPE_DOUBLE:
child_type = glsl_get_column_type(type);
break;
case GLSL_TYPE_ARRAY:
child_type = glsl_get_array_element(type);
break;
case GLSL_TYPE_STRUCT:
case GLSL_TYPE_INTERFACE:
child_type = glsl_get_struct_field(type, i);
break;
default:
vtn_fail("unkown base type");
const struct glsl_type *elem_type = glsl_get_struct_field(type, i);
val->elems[i] = vtn_create_ssa_value(b, elem_type);
}
val->elems[i] = vtn_create_ssa_value(b, child_type);
}
}