error_emitted = true;
break;
- case ast_logic_and:
- case ast_logic_xor:
- case ast_logic_or:
+ case ast_logic_and: {
op[0] = this->subexpressions[0]->hir(instructions, state);
- op[1] = this->subexpressions[1]->hir(instructions, state);
if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
YYLTYPE loc = this->subexpressions[0]->get_location();
error_emitted = true;
}
- if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
- YYLTYPE loc = this->subexpressions[1]->get_location();
+ ir_constant *op0_const = op[0]->constant_expression_value();
+ if (op0_const) {
+ if (op0_const->value.b[0]) {
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+ result = op[1];
+ } else {
+ result = op0_const;
+ }
+ type = glsl_type::bool_type;
+ } else {
+ ir_if *const stmt = new ir_if(op[0]);
+ instructions->push_tail(stmt);
+
+ op[1] = this->subexpressions[1]->hir(&stmt->then_instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_variable *const tmp = generate_temporary(glsl_type::bool_type,
+ instructions, state);
+
+ ir_dereference *const then_deref = new ir_dereference(tmp);
+ ir_assignment *const then_assign =
+ new ir_assignment(then_deref, op[1], NULL);
+ stmt->then_instructions.push_tail(then_assign);
+
+ ir_dereference *const else_deref = new ir_dereference(tmp);
+ ir_assignment *const else_assign =
+ new ir_assignment(else_deref, new ir_constant(false), NULL);
+ stmt->else_instructions.push_tail(else_assign);
- _mesa_glsl_error(& loc, state, "RHS of `%s' must be scalar boolean",
+ result = new ir_dereference(tmp);
+ type = tmp->type;
+ }
+ break;
+ }
+
+ case ast_logic_or: {
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+
+ if (!op[0]->type->is_boolean() || !op[0]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[0]->get_location();
+
+ _mesa_glsl_error(& loc, state, "LHS of `%s' must be scalar boolean",
operator_string(this->oper));
error_emitted = true;
}
+ ir_constant *op0_const = op[0]->constant_expression_value();
+ if (op0_const) {
+ if (op0_const->value.b[0]) {
+ result = op0_const;
+ } else {
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+ result = op[1];
+ }
+ type = glsl_type::bool_type;
+ } else {
+ ir_if *const stmt = new ir_if(op[0]);
+ instructions->push_tail(stmt);
+
+ ir_variable *const tmp = generate_temporary(glsl_type::bool_type,
+ instructions, state);
+
+ op[1] = this->subexpressions[1]->hir(&stmt->then_instructions, state);
+
+ if (!op[1]->type->is_boolean() || !op[1]->type->is_scalar()) {
+ YYLTYPE loc = this->subexpressions[1]->get_location();
+
+ _mesa_glsl_error(& loc, state, "RHS of `%s' must be scalar boolean",
+ operator_string(this->oper));
+ error_emitted = true;
+ }
+
+ ir_dereference *const then_deref = new ir_dereference(tmp);
+ ir_assignment *const then_assign =
+ new ir_assignment(then_deref, new ir_constant(true), NULL);
+ stmt->then_instructions.push_tail(then_assign);
+
+ ir_dereference *const else_deref = new ir_dereference(tmp);
+ ir_assignment *const else_assign =
+ new ir_assignment(else_deref, op[1], NULL);
+ stmt->else_instructions.push_tail(else_assign);
+
+ result = new ir_dereference(tmp);
+ type = tmp->type;
+ }
+ break;
+ }
+
+ case ast_logic_xor:
+ op[0] = this->subexpressions[0]->hir(instructions, state);
+ op[1] = this->subexpressions[1]->hir(instructions, state);
+
+
result = new ir_expression(operations[this->oper], glsl_type::bool_type,
op[0], op[1]);
type = glsl_type::bool_type;
else
var->mode = ir_var_auto;
+ if (qual->uniform)
+ var->shader_in = true;
+ if (qual->varying) {
+ if (qual->in)
+ var->shader_in = true;
+ if (qual->out)
+ var->shader_out = true;
+ }
+
if (qual->flat)
var->interpolation = ir_var_flat;
else if (qual->noperspective)
exec_list_iterator iter_a = list_a->iterator();
exec_list_iterator iter_b = list_b->iterator();
- while (iter_a.has_next()) {
+ while (iter_a.has_next() && iter_b.has_next()) {
ir_variable *a = (ir_variable *)iter_a.get();
ir_variable *b = (ir_variable *)iter_b.get();
- /* If all of the parameters from the other parameter list have been
- * exhausted, the lists have different length and, by definition,
- * do not match.
- */
- if (!iter_b.has_next())
- return false;
-
/* If the types of the parameters do not match, the parameters lists
* are different.
*/
iter_b.next();
}
+ /* Unless both lists are exhausted, they differ in length and, by
+ * definition, do not match.
+ */
+ if (iter_a.has_next() != iter_b.has_next())
+ return false;
+
return true;
}
exec_list hir_parameters;
- /* The prototype part of a function does not generate anything in the IR
- * instruction stream.
- */
- (void) instructions;
-
/* Convert the list of function parameters to HIR now so that they can be
* used below to compare this function's signature with previously seen
* signatures for functions with the same name.
* definition.
*/
if (parameter_lists_match(& hir_parameters, & sig->parameters)) {
- /* FINISHME: Compare return types. */
+ exec_list_iterator iter_a = hir_parameters.iterator();
+ exec_list_iterator iter_b = sig->parameters.iterator();
+
+ /* check that the qualifiers match. */
+ while (iter_a.has_next()) {
+ ir_variable *a = (ir_variable *)iter_a.get();
+ ir_variable *b = (ir_variable *)iter_b.get();
+
+ if (a->read_only != b->read_only ||
+ a->interpolation != b->interpolation ||
+ a->centroid != b->centroid) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "function `%s' parameter `%s' qualifiers "
+ "don't match prototype",
+ name, a->name);
+ }
+
+ iter_a.next();
+ iter_b.next();
+ }
- if (is_definition && (sig->definition != NULL)) {
+ if (sig->return_type != return_type) {
+ YYLTYPE loc = this->get_location();
+
+ _mesa_glsl_error(& loc, state,
+ "function `%s' return type doesn't match "
+ "prototype",
+ name);
+ }
+
+ if (is_definition && sig->is_defined) {
YYLTYPE loc = this->get_location();
_mesa_glsl_error(& loc, state, "function `%s' redefined", name);
} else {
f = new ir_function(name);
state->symbols->add_function(f->name, f);
+
+ /* Emit the new function header */
+ instructions->push_tail(f);
}
/* Verify the return type of main() */
assert(state->current_function == NULL);
state->current_function = signature;
- ir_label *label = new ir_label(signature->function_name(), signature);
- if (signature->definition == NULL) {
- signature->definition = label;
- }
- instructions->push_tail(label);
-
/* Duplicate parameters declared in the prototype as concrete variables.
* Add these to the symbol table.
*/
}
}
- /* Convert the body of the function to HIR, and append the resulting
- * instructions to the list that currently consists of the function label
- * and the function parameters.
- */
+ /* Convert the body of the function to HIR. */
this->body->hir(&signature->body, state);
+ signature->is_defined = true;
state->symbols->pop_scope();
_mesa_glsl_error(& loc, state,
"`return` with a value, in function `%s' "
"returning void",
- state->current_function->definition->label);
+ state->current_function->function_name());
}
ir_expression *const ret = (ir_expression *)
_mesa_glsl_error(& loc, state,
"`return' with no value, in function %s returning "
"non-void",
- state->current_function->definition->label);
+ state->current_function->function_name());
}
inst = new ir_return;
}
ast_iteration_statement::hir(exec_list *instructions,
struct _mesa_glsl_parse_state *state)
{
- /* For loops start a new scope, but while and do-while loops do not.
+ /* For-loops and while-loops start a new scope, but do-while loops do not.
*/
- if (mode == ast_for)
+ if (mode != ast_do_while)
state->symbols->push_scope();
if (init_statement != NULL)
if (mode == ast_do_while)
condition_to_hir(stmt, state);
- if (mode == ast_for)
+ if (mode != ast_do_while)
state->symbols->pop_scope();
/* Restore previous nesting before returning.
projects / mesa.git / blobdiff