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-rw-r--r--src/compiler/spirv/spirv_to_nir.c29
-rw-r--r--src/compiler/spirv/vtn_variables.c161
2 files changed, 90 insertions, 100 deletions
diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c
index 7a98843db77..72a890454ed 100644
--- a/src/compiler/spirv/spirv_to_nir.c
+++ b/src/compiler/spirv/spirv_to_nir.c
@@ -520,7 +520,7 @@ struct_member_decoration_cb(struct vtn_builder *b,
ctx->type->offsets[member] = dec->literals[0];
break;
case SpvDecorationMatrixStride:
- mutable_matrix_member(b, ctx->type, member)->stride = dec->literals[0];
+ /* Handled as a second pass */
break;
case SpvDecorationColMajor:
break; /* Nothing to do here. Column-major is the default. */
@@ -571,6 +571,32 @@ struct_member_decoration_cb(struct vtn_builder *b,
}
}
+/* Matrix strides are handled as a separate pass because we need to know
+ * whether the matrix is row-major or not first.
+ */
+static void
+struct_member_matrix_stride_cb(struct vtn_builder *b,
+ struct vtn_value *val, int member,
+ const struct vtn_decoration *dec,
+ void *void_ctx)
+{
+ if (dec->decoration != SpvDecorationMatrixStride)
+ return;
+ assert(member >= 0);
+
+ struct member_decoration_ctx *ctx = void_ctx;
+
+ struct vtn_type *mat_type = mutable_matrix_member(b, ctx->type, member);
+ if (mat_type->row_major) {
+ mat_type->array_element = vtn_type_copy(b, mat_type->array_element);
+ mat_type->stride = mat_type->array_element->stride;
+ mat_type->array_element->stride = dec->literals[0];
+ } else {
+ assert(mat_type->array_element->stride > 0);
+ mat_type->stride = dec->literals[0];
+ }
+}
+
static void
type_decoration_cb(struct vtn_builder *b,
struct vtn_value *val, int member,
@@ -807,6 +833,7 @@ vtn_handle_type(struct vtn_builder *b, SpvOp opcode,
};
vtn_foreach_decoration(b, val, struct_member_decoration_cb, &ctx);
+ vtn_foreach_decoration(b, val, struct_member_matrix_stride_cb, &ctx);
const char *name = val->name ? val->name : "struct";
diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c
index e9020e7e0dc..8e6e4c97a9e 100644
--- a/src/compiler/spirv/vtn_variables.c
+++ b/src/compiler/spirv/vtn_variables.c
@@ -543,114 +543,77 @@ _vtn_block_load_store(struct vtn_builder *b, nir_intrinsic_op op, bool load,
* a vector, a scalar, or a matrix.
*/
if (glsl_type_is_matrix(type->type)) {
- if (chain == NULL) {
- /* Loading the whole matrix */
- struct vtn_ssa_value *transpose;
- unsigned num_ops, vec_width;
- if (type->row_major) {
- num_ops = glsl_get_vector_elements(type->type);
- vec_width = glsl_get_matrix_columns(type->type);
- if (load) {
- const struct glsl_type *transpose_type =
- glsl_matrix_type(base_type, vec_width, num_ops);
- *inout = vtn_create_ssa_value(b, transpose_type);
- } else {
- transpose = vtn_ssa_transpose(b, *inout);
- inout = &transpose;
- }
+ /* Loading the whole matrix */
+ struct vtn_ssa_value *transpose;
+ unsigned num_ops, vec_width, col_stride;
+ if (type->row_major) {
+ num_ops = glsl_get_vector_elements(type->type);
+ vec_width = glsl_get_matrix_columns(type->type);
+ col_stride = type->array_element->stride;
+ if (load) {
+ const struct glsl_type *transpose_type =
+ glsl_matrix_type(base_type, vec_width, num_ops);
+ *inout = vtn_create_ssa_value(b, transpose_type);
} else {
- num_ops = glsl_get_matrix_columns(type->type);
- vec_width = glsl_get_vector_elements(type->type);
+ transpose = vtn_ssa_transpose(b, *inout);
+ inout = &transpose;
}
+ } else {
+ num_ops = glsl_get_matrix_columns(type->type);
+ vec_width = glsl_get_vector_elements(type->type);
+ col_stride = type->stride;
+ }
- for (unsigned i = 0; i < num_ops; i++) {
+ for (unsigned i = 0; i < num_ops; i++) {
+ nir_ssa_def *elem_offset =
+ nir_iadd(&b->nb, offset, nir_imm_int(&b->nb, i * col_stride));
+ _vtn_load_store_tail(b, op, load, index, elem_offset,
+ access_offset, access_size,
+ &(*inout)->elems[i],
+ glsl_vector_type(base_type, vec_width));
+ }
+
+ if (load && type->row_major)
+ *inout = vtn_ssa_transpose(b, *inout);
+ } else {
+ unsigned elems = glsl_get_vector_elements(type->type);
+ unsigned type_size = glsl_get_bit_size(type->type) / 8;
+ if (elems == 1 || type->stride == type_size) {
+ /* This is a tightly-packed normal scalar or vector load */
+ assert(glsl_type_is_vector_or_scalar(type->type));
+ _vtn_load_store_tail(b, op, load, index, offset,
+ access_offset, access_size,
+ inout, type->type);
+ } else {
+ /* This is a strided load. We have to load N things separately.
+ * This is the single column of a row-major matrix case.
+ */
+ assert(type->stride > type_size);
+ assert(type->stride % type_size == 0);
+
+ nir_ssa_def *per_comp[4];
+ for (unsigned i = 0; i < elems; i++) {
nir_ssa_def *elem_offset =
nir_iadd(&b->nb, offset,
- nir_imm_int(&b->nb, i * type->stride));
+ nir_imm_int(&b->nb, i * type->stride));
+ struct vtn_ssa_value *comp, temp_val;
+ if (!load) {
+ temp_val.def = nir_channel(&b->nb, (*inout)->def, i);
+ temp_val.type = glsl_scalar_type(base_type);
+ }
+ comp = &temp_val;
_vtn_load_store_tail(b, op, load, index, elem_offset,
access_offset, access_size,
- &(*inout)->elems[i],
- glsl_vector_type(base_type, vec_width));
+ &comp, glsl_scalar_type(base_type));
+ per_comp[i] = comp->def;
}
- if (load && type->row_major)
- *inout = vtn_ssa_transpose(b, *inout);
- } else if (type->row_major) {
- /* Row-major but with an access chiain. */
- nir_ssa_def *col_offset =
- vtn_access_link_as_ssa(b, chain->link[chain_idx],
- type->array_element->stride);
- offset = nir_iadd(&b->nb, offset, col_offset);
-
- if (chain_idx + 1 < chain->length) {
- /* Picking off a single element */
- nir_ssa_def *row_offset =
- vtn_access_link_as_ssa(b, chain->link[chain_idx + 1],
- type->stride);
- offset = nir_iadd(&b->nb, offset, row_offset);
- if (load)
- *inout = vtn_create_ssa_value(b, glsl_scalar_type(base_type));
- _vtn_load_store_tail(b, op, load, index, offset,
- access_offset, access_size,
- inout, glsl_scalar_type(base_type));
- } else {
- /* Grabbing a column; picking one element off each row */
- unsigned num_comps = glsl_get_vector_elements(type->type);
- const struct glsl_type *column_type =
- glsl_get_column_type(type->type);
-
- nir_ssa_def *comps[4];
- for (unsigned i = 0; i < num_comps; i++) {
- nir_ssa_def *elem_offset =
- nir_iadd(&b->nb, offset,
- nir_imm_int(&b->nb, i * type->stride));
-
- struct vtn_ssa_value *comp, temp_val;
- if (!load) {
- temp_val.def = nir_channel(&b->nb, (*inout)->def, i);
- temp_val.type = glsl_scalar_type(base_type);
- }
- comp = &temp_val;
- _vtn_load_store_tail(b, op, load, index, elem_offset,
- access_offset, access_size,
- &comp, glsl_scalar_type(base_type));
- comps[i] = comp->def;
- }
-
- if (load) {
- if (*inout == NULL)
- *inout = vtn_create_ssa_value(b, column_type);
-
- (*inout)->def = nir_vec(&b->nb, comps, num_comps);
- }
+ if (load) {
+ if (*inout == NULL)
+ *inout = vtn_create_ssa_value(b, type->type);
+ (*inout)->def = nir_vec(&b->nb, per_comp, elems);
}
- } else {
- /* Column-major with a deref. Fall through to array case. */
- nir_ssa_def *col_offset =
- vtn_access_link_as_ssa(b, chain->link[chain_idx], type->stride);
- offset = nir_iadd(&b->nb, offset, col_offset);
-
- _vtn_block_load_store(b, op, load, index, offset,
- access_offset, access_size,
- chain, chain_idx + 1,
- type->array_element, inout);
}
- } else if (chain == NULL) {
- /* Single whole vector */
- assert(glsl_type_is_vector_or_scalar(type->type));
- _vtn_load_store_tail(b, op, load, index, offset,
- access_offset, access_size,
- inout, type->type);
- } else {
- /* Single component of a vector. Fall through to array case. */
- nir_ssa_def *elem_offset =
- vtn_access_link_as_ssa(b, chain->link[chain_idx], type->stride);
- offset = nir_iadd(&b->nb, offset, elem_offset);
-
- _vtn_block_load_store(b, op, load, index, offset,
- access_offset, access_size,
- NULL, 0,
- type->array_element, inout);
}
return;
@@ -709,7 +672,7 @@ vtn_block_load(struct vtn_builder *b, struct vtn_pointer *src)
nir_ssa_def *offset, *index = NULL;
unsigned chain_idx;
struct vtn_type *type;
- offset = vtn_pointer_to_offset(b, src, &index, &type, &chain_idx, true);
+ offset = vtn_pointer_to_offset(b, src, &index, &type, &chain_idx, false);
struct vtn_ssa_value *value = NULL;
_vtn_block_load_store(b, op, true, index, offset,
@@ -725,7 +688,7 @@ vtn_block_store(struct vtn_builder *b, struct vtn_ssa_value *src,
nir_ssa_def *offset, *index = NULL;
unsigned chain_idx;
struct vtn_type *type;
- offset = vtn_pointer_to_offset(b, dst, &index, &type, &chain_idx, true);
+ offset = vtn_pointer_to_offset(b, dst, &index, &type, &chain_idx, false);
_vtn_block_load_store(b, nir_intrinsic_store_ssbo, false, index, offset,
0, 0, dst->chain, chain_idx, type, &src);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 23:17:45 +0000