#include "ast.h"
#include "glsl_types.h"
#include "ir.h"
-
-inline unsigned min(unsigned a, unsigned b)
-{
- return (a < b) ? a : b;
-}
+#include "main/core.h" /* for MIN2 */
static ir_rvalue *
convert_component(ir_rvalue *src, const glsl_type *desired_type);
+bool
+apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
+ struct _mesa_glsl_parse_state *state);
+
static unsigned
process_parameters(exec_list *instructions, exec_list *actual_parameters,
exec_list *parameters,
}
+/**
+ * Generate a source prototype for a function signature
+ *
+ * \param return_type Return type of the function. May be \c NULL.
+ * \param name Name of the function.
+ * \param parameters Parameter list for the function. This may be either a
+ * formal or actual parameter list. Only the type is used.
+ *
+ * \return
+ * A talloced string representing the prototype of the function.
+ */
+char *
+prototype_string(const glsl_type *return_type, const char *name,
+ exec_list *parameters)
+{
+ char *str = NULL;
+
+ if (return_type != NULL)
+ str = talloc_asprintf(str, "%s ", return_type->name);
+
+ str = talloc_asprintf_append(str, "%s(", name);
+
+ const char *comma = "";
+ foreach_list(node, parameters) {
+ const ir_instruction *const param = (ir_instruction *) node;
+
+ str = talloc_asprintf_append(str, "%s%s", comma, param->type->name);
+ comma = ", ";
+ }
+
+ str = talloc_strdup_append(str, ")");
+ return str;
+}
+
+
static ir_rvalue *
-process_call(exec_list *instructions, ir_function *f,
- YYLTYPE *loc, exec_list *actual_parameters,
- struct _mesa_glsl_parse_state *state)
+match_function_by_name(exec_list *instructions, const char *name,
+ YYLTYPE *loc, exec_list *actual_parameters,
+ struct _mesa_glsl_parse_state *state)
{
void *ctx = state;
+ ir_function *f = state->symbols->get_function(name);
+ ir_function_signature *sig;
+
+ sig = f ? f->matching_signature(actual_parameters) : NULL;
- ir_function_signature *sig = f->matching_signature(actual_parameters);
+ /* FINISHME: This doesn't handle the case where shader X contains a
+ * FINISHME: matching signature but shader X + N contains an _exact_
+ * FINISHME: matching signature.
+ */
+ if (sig == NULL && (f == NULL || state->es_shader || !f->has_user_signature()) && state->symbols->get_type(name) == NULL && (state->language_version == 110 || state->symbols->get_variable(name) == NULL)) {
+ /* The current shader doesn't contain a matching function or signature.
+ * Before giving up, look for the prototype in the built-in functions.
+ */
+ for (unsigned i = 0; i < state->num_builtins_to_link; i++) {
+ ir_function *builtin;
+ builtin = state->builtins_to_link[i]->symbols->get_function(name);
+ sig = builtin ? builtin->matching_signature(actual_parameters) : NULL;
+ if (sig != NULL) {
+ if (f == NULL) {
+ f = new(ctx) ir_function(name);
+ state->symbols->add_global_function(f);
+ emit_function(state, instructions, f);
+ }
- /* The instructions param will be used when the FINISHMEs below are done */
- (void) instructions;
+ f->add_signature(sig->clone_prototype(f, NULL));
+ break;
+ }
+ }
+ }
if (sig != NULL) {
/* Verify that 'out' and 'inout' actual parameters are lvalues. This
deref = new(ctx) ir_dereference_variable(var);
ir_assignment *assign = new(ctx) ir_assignment(deref, call, NULL);
instructions->push_tail(assign);
+ if (state->language_version >= 120)
+ var->constant_value = call->constant_expression_value();
deref = new(ctx) ir_dereference_variable(var);
return deref;
return NULL;
}
} else {
- /* FINISHME: Log a better error message here. G++ will show the types
- * FINISHME: of the actual parameters and the set of candidate
- * FINISHME: functions. A different error should also be logged when
- * FINISHME: multiple functions match.
- */
+ char *str = prototype_string(NULL, name, actual_parameters);
+
_mesa_glsl_error(loc, state, "no matching function for call to `%s'",
- f->name);
- return ir_call::get_error_instruction(ctx);
- }
-}
+ str);
+ talloc_free(str);
+ const char *prefix = "candidates are: ";
-static ir_rvalue *
-match_function_by_name(exec_list *instructions, const char *name,
- YYLTYPE *loc, exec_list *actual_parameters,
- struct _mesa_glsl_parse_state *state)
-{
- void *ctx = state;
- ir_function *f = state->symbols->get_function(name);
+ for (int i = -1; i < state->num_builtins_to_link; i++) {
+ glsl_symbol_table *syms = i >= 0 ? state->builtins_to_link[i]->symbols
+ : state->symbols;
+ f = syms->get_function(name);
+ if (f == NULL)
+ continue;
+
+ foreach_list (node, &f->signatures) {
+ ir_function_signature *sig = (ir_function_signature *) node;
+
+ str = prototype_string(sig->return_type, f->name, &sig->parameters);
+ _mesa_glsl_error(loc, state, "%s%s\n", prefix, str);
+ talloc_free(str);
+
+ prefix = " ";
+ }
+
+ }
- if (f == NULL) {
- _mesa_glsl_error(loc, state, "function `%s' undeclared", name);
return ir_call::get_error_instruction(ctx);
}
-
- /* Once we've determined that the function being called might exist, try
- * to find an overload of the function that matches the parameters.
- */
- return process_call(instructions, f, loc, actual_parameters, state);
}
assert(constructor_type->length == parameter_count);
}
- ir_function *f = state->symbols->get_function(constructor_type->name);
-
- /* If the constructor for this type of array does not exist, generate the
- * prototype and add it to the symbol table.
- */
- if (f == NULL) {
- f = constructor_type->generate_constructor(state->symbols);
- }
-
- ir_rvalue *const r =
- process_call(instructions, f, loc, &actual_parameters, state);
-
- assert(r != NULL);
- assert(r->type->is_error() || (r->type == constructor_type));
-
- return r;
-}
-
-
-/**
- * Try to convert a record constructor to a constant expression
- */
-static ir_constant *
-constant_record_constructor(const glsl_type *constructor_type,
- YYLTYPE *loc, exec_list *parameters,
- struct _mesa_glsl_parse_state *state)
-{
- void *ctx = state;
bool all_parameters_are_constant = true;
- exec_node *node = parameters->head;
- for (unsigned i = 0; i < constructor_type->length; i++) {
- ir_instruction *ir = (ir_instruction *) node;
+ /* Type cast each parameter and, if possible, fold constants. */
+ foreach_list_safe(n, &actual_parameters) {
+ ir_rvalue *ir = (ir_rvalue *) n;
+ ir_rvalue *result = ir;
- if (node->is_tail_sentinal()) {
- _mesa_glsl_error(loc, state,
- "insufficient parameters to constructor for `%s'",
- constructor_type->name);
- return NULL;
+ /* Apply implicit conversions (not the scalar constructor rules!) */
+ if (constructor_type->element_type()->is_float()) {
+ const glsl_type *desired_type =
+ glsl_type::get_instance(GLSL_TYPE_FLOAT,
+ ir->type->vector_elements,
+ ir->type->matrix_columns);
+ result = convert_component(ir, desired_type);
}
- if (ir->type != constructor_type->fields.structure[i].type) {
- _mesa_glsl_error(loc, state,
- "parameter type mismatch in constructor for `%s' "
- " (%s vs %s)",
- constructor_type->name,
- ir->type->name,
- constructor_type->fields.structure[i].type->name);
- return NULL;
+ if (result->type != constructor_type->element_type()) {
+ _mesa_glsl_error(loc, state, "type error in array constructor: "
+ "expected: %s, found %s",
+ constructor_type->element_type()->name,
+ result->type->name);
}
- if (ir->as_constant() == NULL)
- all_parameters_are_constant = false;
-
- node = node->next;
- }
-
- if (!all_parameters_are_constant)
- return NULL;
-
- return new(ctx) ir_constant(constructor_type, parameters);
-}
-
+ /* Attempt to convert the parameter to a constant valued expression.
+ * After doing so, track whether or not all the parameters to the
+ * constructor are trivially constant valued expressions.
+ */
+ ir_rvalue *const constant = result->constant_expression_value();
-/**
- * Generate data for a constant matrix constructor w/a single scalar parameter
- *
- * Matrix constructors in GLSL can be passed a single scalar of the
- * approriate type. In these cases, the resulting matrix is the identity
- * matrix multipled by the specified scalar. This function generates data for
- * that matrix.
- *
- * \param type Type of the desired matrix.
- * \param initializer Scalar value used to initialize the matrix diagonal.
- * \param data Location to store the resulting matrix.
- */
-void
-generate_constructor_matrix(const glsl_type *type, ir_constant *initializer,
- ir_constant_data *data)
-{
- switch (type->base_type) {
- case GLSL_TYPE_UINT:
- case GLSL_TYPE_INT:
- for (unsigned i = 0; i < type->components(); i++)
- data->u[i] = 0;
+ if (constant != NULL)
+ result = constant;
+ else
+ all_parameters_are_constant = false;
- for (unsigned i = 0; i < type->matrix_columns; i++) {
- /* The array offset of the ith row and column of the matrix.
- */
- const unsigned idx = (i * type->vector_elements) + i;
+ ir->replace_with(result);
+ }
- data->u[idx] = initializer->value.u[0];
- }
- break;
+ if (all_parameters_are_constant)
+ return new(ctx) ir_constant(constructor_type, &actual_parameters);
- case GLSL_TYPE_FLOAT:
- for (unsigned i = 0; i < type->components(); i++)
- data->f[i] = 0;
+ ir_variable *var = new(ctx) ir_variable(constructor_type, "array_ctor",
+ ir_var_temporary);
+ instructions->push_tail(var);
- for (unsigned i = 0; i < type->matrix_columns; i++) {
- /* The array offset of the ith row and column of the matrix.
- */
- const unsigned idx = (i * type->vector_elements) + i;
+ int i = 0;
+ foreach_list(node, &actual_parameters) {
+ ir_rvalue *rhs = (ir_rvalue *) node;
+ ir_rvalue *lhs = new(ctx) ir_dereference_array(var,
+ new(ctx) ir_constant(i));
- data->f[idx] = initializer->value.f[0];
- }
+ ir_instruction *assignment = new(ctx) ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(assignment);
- break;
-
- default:
- assert(!"Should not get here.");
- break;
+ i++;
}
+
+ return new(ctx) ir_dereference_variable(var);
}
/**
- * Generate data for a constant vector constructor w/a single scalar parameter
- *
- * Vector constructors in GLSL can be passed a single scalar of the
- * approriate type. In these cases, the resulting vector contains the specified
- * value in all components. This function generates data for that vector.
- *
- * \param type Type of the desired vector.
- * \param initializer Scalar value used to initialize the vector.
- * \param data Location to store the resulting vector data.
+ * Try to convert a record constructor to a constant expression
*/
-void
-generate_constructor_vector(const glsl_type *type, ir_constant *initializer,
- ir_constant_data *data)
+static ir_constant *
+constant_record_constructor(const glsl_type *constructor_type,
+ exec_list *parameters, void *mem_ctx)
{
- switch (type->base_type) {
- case GLSL_TYPE_UINT:
- case GLSL_TYPE_INT:
- for (unsigned i = 0; i < type->components(); i++)
- data->u[i] = initializer->value.u[0];
-
- break;
-
- case GLSL_TYPE_FLOAT:
- for (unsigned i = 0; i < type->components(); i++)
- data->f[i] = initializer->value.f[0];
-
- break;
-
- case GLSL_TYPE_BOOL:
- for (unsigned i = 0; i < type->components(); i++)
- data->b[i] = initializer->value.b[0];
-
- break;
-
- default:
- assert(!"Should not get here.");
- break;
+ foreach_list(node, parameters) {
+ ir_constant *constant = ((ir_instruction *) node)->as_constant();
+ if (constant == NULL)
+ return NULL;
+ node->replace_with(constant);
}
+
+ return new(mem_ctx) ir_constant(constructor_type, parameters);
}
const ir_rvalue *const p = (ir_rvalue *) parameters->head;
assert(((ir_rvalue *)p)->as_rvalue() != NULL);
- return (p->type->is_scalar() && p->next->is_tail_sentinal());
+ return (p->type->is_scalar() && p->next->is_tail_sentinel());
}
{
assert(!parameters->is_empty());
- ir_variable *var = new(ctx) ir_variable(type,
- talloc_strdup(ctx, "vec_ctor"),
- ir_var_temporary);
+ ir_variable *var = new(ctx) ir_variable(type, "vec_ctor", ir_var_temporary);
instructions->push_tail(var);
/* There are two kinds of vector constructors.
ir_rvalue *rhs = new(ctx) ir_swizzle(first_param, 0, 0, 0, 0,
lhs_components);
ir_dereference_variable *lhs = new(ctx) ir_dereference_variable(var);
+ const unsigned mask = (1U << lhs_components) - 1;
assert(rhs->type == lhs->type);
- ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL);
+ ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL, mask);
instructions->push_tail(inst);
} else {
unsigned base_component = 0;
+ unsigned base_lhs_component = 0;
+ ir_constant_data data;
+ unsigned constant_mask = 0, constant_components = 0;
+
+ memset(&data, 0, sizeof(data));
+
foreach_list(node, parameters) {
- ir_rvalue *rhs = (ir_rvalue *) node;
- unsigned rhs_components = rhs->type->components();
+ ir_rvalue *param = (ir_rvalue *) node;
+ unsigned rhs_components = param->type->components();
/* Do not try to assign more components to the vector than it has!
*/
- if ((rhs_components + base_component) > lhs_components) {
- rhs_components = lhs_components - base_component;
+ if ((rhs_components + base_lhs_component) > lhs_components) {
+ rhs_components = lhs_components - base_lhs_component;
+ }
+
+ const ir_constant *const c = param->as_constant();
+ if (c != NULL) {
+ for (unsigned i = 0; i < rhs_components; i++) {
+ switch (c->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[i + base_component] = c->get_uint_component(i);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[i + base_component] = c->get_int_component(i);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[i + base_component] = c->get_float_component(i);
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[i + base_component] = c->get_bool_component(i);
+ break;
+ default:
+ assert(!"Should not get here.");
+ break;
+ }
+ }
+
+ /* Mask of fields to be written in the assignment.
+ */
+ constant_mask |= ((1U << rhs_components) - 1) << base_lhs_component;
+ constant_components += rhs_components;
+
+ base_component += rhs_components;
}
+ /* Advance the component index by the number of components
+ * that were just assigned.
+ */
+ base_lhs_component += rhs_components;
+ }
+
+ if (constant_mask != 0) {
+ ir_dereference *lhs = new(ctx) ir_dereference_variable(var);
+ const glsl_type *rhs_type = glsl_type::get_instance(var->type->base_type,
+ constant_components,
+ 1);
+ ir_rvalue *rhs = new(ctx) ir_constant(rhs_type, &data);
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, constant_mask);
+ instructions->push_tail(inst);
+ }
- /* Emit an assignment of the constructor parameter to the next set of
- * components in the temporary variable.
+ base_component = 0;
+ foreach_list(node, parameters) {
+ ir_rvalue *param = (ir_rvalue *) node;
+ unsigned rhs_components = param->type->components();
+
+ /* Do not try to assign more components to the vector than it has!
*/
- unsigned mask[4] = { 0, 0, 0, 0 };
- for (unsigned i = 0; i < rhs_components; i++) {
- mask[i] = i + base_component;
+ if ((rhs_components + base_component) > lhs_components) {
+ rhs_components = lhs_components - base_component;
}
+ const ir_constant *const c = param->as_constant();
+ if (c == NULL) {
+ /* Mask of fields to be written in the assignment.
+ */
+ const unsigned write_mask = ((1U << rhs_components) - 1)
+ << base_component;
- ir_rvalue *lhs_ref = new(ctx) ir_dereference_variable(var);
- ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, mask, rhs_components);
+ ir_dereference *lhs = new(ctx) ir_dereference_variable(var);
- ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL);
- instructions->push_tail(inst);
+ /* Generate a swizzle so that LHS and RHS sizes match.
+ */
+ ir_rvalue *rhs =
+ new(ctx) ir_swizzle(param, 0, 1, 2, 3, rhs_components);
+
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, write_mask);
+ instructions->push_tail(inst);
+ }
/* Advance the component index by the number of components that were
* just assigned.
ir_instruction *
assign_to_matrix_column(ir_variable *var, unsigned column, unsigned row_base,
ir_rvalue *src, unsigned src_base, unsigned count,
- TALLOC_CTX *ctx)
+ void *mem_ctx)
{
- const unsigned mask[8] = { 0, 1, 2, 3, 0, 0, 0, 0 };
-
- ir_constant *col_idx = new(ctx) ir_constant(column);
- ir_rvalue *column_ref = new(ctx) ir_dereference_array(var, col_idx);
+ ir_constant *col_idx = new(mem_ctx) ir_constant(column);
+ ir_dereference *column_ref = new(mem_ctx) ir_dereference_array(var, col_idx);
assert(column_ref->type->components() >= (row_base + count));
- ir_rvalue *lhs = new(ctx) ir_swizzle(column_ref, &mask[row_base], count);
-
assert(src->type->components() >= (src_base + count));
- ir_rvalue *rhs = new(ctx) ir_swizzle(src, &mask[src_base], count);
- return new(ctx) ir_assignment(lhs, rhs, NULL);
+ /* Generate a swizzle that extracts the number of components from the source
+ * that are to be assigned to the column of the matrix.
+ */
+ if (count < src->type->vector_elements) {
+ src = new(mem_ctx) ir_swizzle(src,
+ src_base + 0, src_base + 1,
+ src_base + 2, src_base + 3,
+ count);
+ }
+
+ /* Mask of fields to be written in the assignment.
+ */
+ const unsigned write_mask = ((1U << count) - 1) << row_base;
+
+ return new(mem_ctx) ir_assignment(column_ref, src, NULL, write_mask);
}
{
assert(!parameters->is_empty());
- ir_variable *var = new(ctx) ir_variable(type,
- talloc_strdup(ctx, "mat_ctor"),
- ir_var_temporary);
+ ir_variable *var = new(ctx) ir_variable(type, "mat_ctor", ir_var_temporary);
instructions->push_tail(var);
/* There are three kinds of matrix constructors.
* components with zero.
*/
ir_variable *rhs_var =
- new(ctx) ir_variable(glsl_type::vec4_type,
- talloc_strdup(ctx, "mat_ctor_vec"),
+ new(ctx) ir_variable(glsl_type::vec4_type, "mat_ctor_vec",
ir_var_temporary);
instructions->push_tail(rhs_var);
NULL);
instructions->push_tail(inst);
- ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var);
- ir_rvalue *const x_of_rhs = new(ctx) ir_swizzle(rhs_ref, 0, 0, 0, 0, 1);
+ ir_dereference *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var);
- inst = new(ctx) ir_assignment(x_of_rhs, first_param, NULL);
+ inst = new(ctx) ir_assignment(rhs_ref, first_param, NULL, 0x01);
instructions->push_tail(inst);
/* Assign the temporary vector to each column of the destination matrix
{ 1, 1, 1, 0 }
};
- const unsigned cols_to_init = min(type->matrix_columns,
- type->vector_elements);
+ const unsigned cols_to_init = MIN2(type->matrix_columns,
+ type->vector_elements);
for (unsigned i = 0; i < cols_to_init; i++) {
ir_constant *const col_idx = new(ctx) ir_constant(i);
ir_rvalue *const col_ref = new(ctx) ir_dereference_array(var, col_idx);
* identity matrix. If a matrix argument is given to a matrix
* constructor, it is an error to have any other arguments."
*/
- assert(first_param->next->is_tail_sentinal());
+ assert(first_param->next->is_tail_sentinel());
ir_rvalue *const src_matrix = first_param;
/* If the source matrix is smaller, pre-initialize the relavent parts of
* generate a temporary and copy the paramter there.
*/
ir_variable *const rhs_var =
- new(ctx) ir_variable(first_param->type,
- talloc_strdup(ctx, "mat_ctor_mat"),
+ new(ctx) ir_variable(first_param->type, "mat_ctor_mat",
ir_var_temporary);
instructions->push_tail(rhs_var);
new(ctx) ir_assignment(rhs_var_ref, first_param, NULL);
instructions->push_tail(inst);
+ const unsigned last_row = MIN2(src_matrix->type->vector_elements,
+ var->type->vector_elements);
+ const unsigned last_col = MIN2(src_matrix->type->matrix_columns,
+ var->type->matrix_columns);
+
+ unsigned swiz[4] = { 0, 0, 0, 0 };
+ for (unsigned i = 1; i < last_row; i++)
+ swiz[i] = i;
+
+ const unsigned write_mask = (1U << last_row) - 1;
- const unsigned swiz[4] = { 0, 1, 2, 3 };
- const unsigned last_col = min(src_matrix->type->matrix_columns,
- var->type->matrix_columns);
for (unsigned i = 0; i < last_col; i++) {
- ir_rvalue *const lhs_col =
+ ir_dereference *const lhs =
new(ctx) ir_dereference_array(var, new(ctx) ir_constant(i));
ir_rvalue *const rhs_col =
new(ctx) ir_dereference_array(rhs_var, new(ctx) ir_constant(i));
* It would be perfectly valid to unconditionally generate the
* swizzles, this this will typically result in a more compact IR tree.
*/
- ir_rvalue *lhs;
ir_rvalue *rhs;
- if (lhs_col->type->vector_elements < rhs_col->type->vector_elements) {
- lhs = lhs_col;
-
- rhs = new(ctx) ir_swizzle(rhs_col, swiz,
- lhs_col->type->vector_elements);
- } else if (lhs_col->type->vector_elements
- > rhs_col->type->vector_elements) {
- lhs = new(ctx) ir_swizzle(lhs_col, swiz,
- rhs_col->type->vector_elements);
- rhs = rhs_col;
+ if (lhs->type->vector_elements != rhs_col->type->vector_elements) {
+ rhs = new(ctx) ir_swizzle(rhs_col, swiz, last_row);
} else {
- lhs = lhs_col;
rhs = rhs_col;
}
- assert(lhs->type == rhs->type);
-
- ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL);
+ ir_instruction *inst =
+ new(ctx) ir_assignment(lhs, rhs, NULL, write_mask);
instructions->push_tail(inst);
}
} else {
- const unsigned rows = type->matrix_columns;
- const unsigned cols = type->vector_elements;
+ const unsigned cols = type->matrix_columns;
+ const unsigned rows = type->vector_elements;
unsigned col_idx = 0;
unsigned row_idx = 0;
* generate a temporary and copy the paramter there.
*/
ir_variable *rhs_var =
- new(ctx) ir_variable(rhs->type,
- talloc_strdup(ctx, "mat_ctor_vec"),
- ir_var_temporary);
+ new(ctx) ir_variable(rhs->type, "mat_ctor_vec", ir_var_temporary);
instructions->push_tail(rhs_var);
ir_dereference *rhs_var_ref =
* single vec4, for example, can completely fill a mat2.
*/
if (rhs_components >= components_remaining_this_column) {
- const unsigned count = min(rhs_components,
- components_remaining_this_column);
+ const unsigned count = MIN2(rhs_components,
+ components_remaining_this_column);
rhs_var_ref = new(ctx) ir_dereference_variable(rhs_var);
}
+ir_rvalue *
+emit_inline_record_constructor(const glsl_type *type,
+ exec_list *instructions,
+ exec_list *parameters,
+ void *mem_ctx)
+{
+ ir_variable *const var =
+ new(mem_ctx) ir_variable(type, "record_ctor", ir_var_temporary);
+ ir_dereference_variable *const d = new(mem_ctx) ir_dereference_variable(var);
+
+ instructions->push_tail(var);
+
+ exec_node *node = parameters->head;
+ for (unsigned i = 0; i < type->length; i++) {
+ assert(!node->is_tail_sentinel());
+
+ ir_dereference *const lhs =
+ new(mem_ctx) ir_dereference_record(d->clone(mem_ctx, NULL),
+ type->fields.structure[i].name);
+
+ ir_rvalue *const rhs = ((ir_instruction *) node)->as_rvalue();
+ assert(rhs != NULL);
+
+ ir_instruction *const assign = new(mem_ctx) ir_assignment(lhs, rhs, NULL);
+
+ instructions->push_tail(assign);
+ node = node->next;
+ }
+
+ return d;
+}
+
+
ir_rvalue *
ast_function_expression::hir(exec_list *instructions,
struct _mesa_glsl_parse_state *state)
& loc, &this->expressions, state);
}
+
/* There are two kinds of constructor call. Constructors for built-in
* language types, such as mat4 and vec2, are free form. The only
* requirement is that the parameters must provide enough values of the
* "It is an error to construct matrices from other matrices. This
* is reserved for future use."
*/
- if ((state->language_version <= 110) && (matrix_parameters > 0)
+ if (state->language_version == 110 && matrix_parameters > 0
&& constructor_type->is_matrix()) {
_mesa_glsl_error(& loc, state, "cannot construct `%s' from a "
"matrix in GLSL 1.10",
* arguments to provide an initializer for every component in the
* constructed value."
*/
- if ((components_used < type_components) && (components_used != 1)) {
+ if (components_used < type_components && components_used != 1
+ && matrix_parameters == 0) {
_mesa_glsl_error(& loc, state, "too few components to construct "
"`%s'",
constructor_type->name);
* constant representing the complete collection of parameters.
*/
if (all_parameters_are_constant) {
- if (components_used >= type_components)
- return new(ctx) ir_constant(constructor_type,
- & actual_parameters);
-
- /* The above case must handle all scalar constructors.
- */
- assert(constructor_type->is_vector()
- || constructor_type->is_matrix());
-
- /* Constructors with exactly one component are special for
- * vectors and matrices. For vectors it causes all elements of
- * the vector to be filled with the value. For matrices it
- * causes the matrix to be filled with 0 and the diagonal to be
- * filled with the value.
- */
- ir_constant_data data;
- ir_constant *const initializer =
- (ir_constant *) actual_parameters.head;
- if (constructor_type->is_matrix())
- generate_constructor_matrix(constructor_type, initializer,
- &data);
- else
- generate_constructor_vector(constructor_type, initializer,
- &data);
-
- return new(ctx) ir_constant(constructor_type, &data);
+ return new(ctx) ir_constant(constructor_type, &actual_parameters);
} else if (constructor_type->is_scalar()) {
return dereference_component((ir_rvalue *) actual_parameters.head,
0);
state->symbols->get_type(id->primary_expression.identifier);
if ((type != NULL) && type->is_record()) {
- ir_constant *constant =
- constant_record_constructor(type, &loc, &actual_parameters, state);
+ exec_node *node = actual_parameters.head;
+ for (unsigned i = 0; i < type->length; i++) {
+ ir_rvalue *ir = (ir_rvalue *) node;
+
+ if (node->is_tail_sentinel()) {
+ _mesa_glsl_error(&loc, state,
+ "insufficient parameters to constructor "
+ "for `%s'",
+ type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
- if (constant != NULL)
- return constant;
+ if (apply_implicit_conversion(type->fields.structure[i].type, ir,
+ state)) {
+ node->replace_with(ir);
+ } else {
+ _mesa_glsl_error(&loc, state,
+ "parameter type mismatch in constructor "
+ "for `%s.%s' (%s vs %s)",
+ type->name,
+ type->fields.structure[i].name,
+ ir->type->name,
+ type->fields.structure[i].type->name);
+ return ir_call::get_error_instruction(ctx);;
+ }
+
+ node = node->next;
+ }
+
+ if (!node->is_tail_sentinel()) {
+ _mesa_glsl_error(&loc, state, "too many parameters in constructor "
+ "for `%s'", type->name);
+ return ir_call::get_error_instruction(ctx);
+ }
+
+ ir_rvalue *const constant =
+ constant_record_constructor(type, &actual_parameters, state);
+
+ return (constant != NULL)
+ ? constant
+ : emit_inline_record_constructor(type, instructions,
+ &actual_parameters, state);
}
return match_function_by_name(instructions,
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