* Replaces calls to functions with the body of the function.
*/
-#include <inttypes.h>
#include "ir.h"
#include "ir_visitor.h"
#include "ir_function_inlining.h"
#include "program/hash_table.h"
static void
-do_sampler_replacement(exec_list *instructions,
- ir_variable *sampler,
- ir_dereference *deref);
+do_variable_replacement(exec_list *instructions,
+ ir_variable *orig,
+ ir_dereference *repl);
+
+namespace {
class ir_function_inlining_visitor : public ir_hierarchical_visitor {
public:
virtual ir_visitor_status visit_enter(ir_expression *);
virtual ir_visitor_status visit_enter(ir_call *);
- virtual ir_visitor_status visit_enter(ir_assignment *);
virtual ir_visitor_status visit_enter(ir_return *);
virtual ir_visitor_status visit_enter(ir_texture *);
virtual ir_visitor_status visit_enter(ir_swizzle *);
bool progress;
};
-
-bool
-automatic_inlining_predicate(ir_instruction *ir)
-{
- ir_call *call = ir->as_call();
-
- if (call && can_inline(call))
- return true;
-
- return false;
-}
+} /* unnamed namespace */
bool
do_function_inlining(exec_list *instructions)
{
ir_function_inlining_visitor v;
- do_expression_flattening(instructions, automatic_inlining_predicate);
-
v.run(instructions);
return v.progress;
static void
replace_return_with_assignment(ir_instruction *ir, void *data)
{
- void *ctx = talloc_parent(ir);
- ir_variable *retval = (ir_variable *)data;
+ void *ctx = ralloc_parent(ir);
+ ir_dereference *orig_deref = (ir_dereference *) data;
ir_return *ret = ir->as_return();
if (ret) {
if (ret->value) {
- ir_rvalue *lhs = new(ctx) ir_dereference_variable(retval);
+ ir_rvalue *lhs = orig_deref->clone(ctx, NULL);
ret->replace_with(new(ctx) ir_assignment(lhs, ret->value, NULL));
} else {
/* un-valued return has to be the last return, or we shouldn't
}
}
-ir_rvalue *
+void
ir_call::generate_inline(ir_instruction *next_ir)
{
- void *ctx = talloc_parent(this);
+ void *ctx = ralloc_parent(this);
ir_variable **parameters;
- int num_parameters;
+ unsigned num_parameters;
int i;
- ir_variable *retval = NULL;
struct hash_table *ht;
ht = hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare);
- num_parameters = 0;
- foreach_iter(exec_list_iterator, iter_sig, this->callee->parameters)
- num_parameters++;
-
+ num_parameters = this->callee->parameters.length();
parameters = new ir_variable *[num_parameters];
- /* Generate storage for the return value. */
- if (this->callee->return_type) {
- retval = new(ctx) ir_variable(this->callee->return_type, "_ret_val",
- ir_var_auto);
- next_ir->insert_before(retval);
- }
-
/* Generate the declarations for the parameters to our inlined code,
* and set up the mapping of real function body variables to ours.
*/
i = 0;
- exec_list_iterator sig_param_iter = this->callee->parameters.iterator();
- exec_list_iterator param_iter = this->actual_parameters.iterator();
- for (i = 0; i < num_parameters; i++) {
- ir_variable *sig_param = (ir_variable *) sig_param_iter.get();
- ir_rvalue *param = (ir_rvalue *) param_iter.get();
+ foreach_two_lists(formal_node, &this->callee->parameters,
+ actual_node, &this->actual_parameters) {
+ ir_variable *sig_param = (ir_variable *) formal_node;
+ ir_rvalue *param = (ir_rvalue *) actual_node;
/* Generate a new variable for the parameter. */
- if (sig_param->type->base_type == GLSL_TYPE_SAMPLER) {
- /* For samplers, we want the inlined sampler references
- * referencing the passed in sampler variable, since that
- * will have the location information, which an assignment of
- * a sampler wouldn't. Fix it up below.
+ if (sig_param->type->contains_opaque()) {
+ /* For opaque types, we want the inlined variable references
+ * referencing the passed in variable, since that will have
+ * the location information, which an assignment of an opaque
+ * variable wouldn't. Fix it up below.
*/
parameters[i] = NULL;
} else {
parameters[i] = sig_param->clone(ctx, ht);
- parameters[i]->mode = ir_var_auto;
+ parameters[i]->data.mode = ir_var_auto;
- /* Remove the read-only decoration becuase we're going to write
+ /* Remove the read-only decoration because we're going to write
* directly to this variable. If the cloned variable is left
* read-only and the inlined function is inside a loop, the loop
* analysis code will get confused.
*/
- parameters[i]->read_only = false;
+ parameters[i]->data.read_only = false;
next_ir->insert_before(parameters[i]);
}
/* Move the actual param into our param variable if it's an 'in' type. */
- if (parameters[i] && (sig_param->mode == ir_var_in ||
- sig_param->mode == ir_var_inout)) {
+ if (parameters[i] && (sig_param->data.mode == ir_var_function_in ||
+ sig_param->data.mode == ir_var_const_in ||
+ sig_param->data.mode == ir_var_function_inout)) {
ir_assignment *assign;
assign = new(ctx) ir_assignment(new(ctx) ir_dereference_variable(parameters[i]),
next_ir->insert_before(assign);
}
- sig_param_iter.next();
- param_iter.next();
+ ++i;
}
exec_list new_instructions;
/* Generate the inlined body of the function to a new list */
- foreach_iter(exec_list_iterator, iter, callee->body) {
- ir_instruction *ir = (ir_instruction *)iter.get();
+ foreach_in_list(ir_instruction, ir, &callee->body) {
ir_instruction *new_ir = ir->clone(ctx, ht);
new_instructions.push_tail(new_ir);
- visit_tree(new_ir, replace_return_with_assignment, retval);
+ visit_tree(new_ir, replace_return_with_assignment, this->return_deref);
}
- /* If any samplers were passed in, replace any deref of the sampler
- * with a deref of the sampler argument.
+ /* If any opaque types were passed in, replace any deref of the
+ * opaque variable with a deref of the argument.
*/
- param_iter = this->actual_parameters.iterator();
- sig_param_iter = this->callee->parameters.iterator();
- for (i = 0; i < num_parameters; i++) {
- ir_instruction *const param = (ir_instruction *) param_iter.get();
- ir_variable *sig_param = (ir_variable *) sig_param_iter.get();
+ foreach_two_lists(formal_node, &this->callee->parameters,
+ actual_node, &this->actual_parameters) {
+ ir_rvalue *const param = (ir_rvalue *) actual_node;
+ ir_variable *sig_param = (ir_variable *) formal_node;
- if (sig_param->type->base_type == GLSL_TYPE_SAMPLER) {
+ if (sig_param->type->contains_opaque()) {
ir_dereference *deref = param->as_dereference();
assert(deref);
- do_sampler_replacement(&new_instructions, sig_param, deref);
+ do_variable_replacement(&new_instructions, sig_param, deref);
}
- param_iter.next();
- sig_param_iter.next();
}
/* Now push those new instructions in. */
- foreach_iter(exec_list_iterator, iter, new_instructions) {
- ir_instruction *ir = (ir_instruction *)iter.get();
- next_ir->insert_before(ir);
- }
+ next_ir->insert_before(&new_instructions);
/* Copy back the value of any 'out' parameters from the function body
* variables to our own.
*/
i = 0;
- param_iter = this->actual_parameters.iterator();
- sig_param_iter = this->callee->parameters.iterator();
- for (i = 0; i < num_parameters; i++) {
- ir_instruction *const param = (ir_instruction *) param_iter.get();
- const ir_variable *const sig_param = (ir_variable *) sig_param_iter.get();
+ foreach_two_lists(formal_node, &this->callee->parameters,
+ actual_node, &this->actual_parameters) {
+ ir_rvalue *const param = (ir_rvalue *) actual_node;
+ const ir_variable *const sig_param = (ir_variable *) formal_node;
/* Move our param variable into the actual param if it's an 'out' type. */
- if (parameters[i] && (sig_param->mode == ir_var_out ||
- sig_param->mode == ir_var_inout)) {
+ if (parameters[i] && (sig_param->data.mode == ir_var_function_out ||
+ sig_param->data.mode == ir_var_function_inout)) {
ir_assignment *assign;
assign = new(ctx) ir_assignment(param->clone(ctx, NULL)->as_rvalue(),
next_ir->insert_before(assign);
}
- param_iter.next();
- sig_param_iter.next();
+ ++i;
}
delete [] parameters;
hash_table_dtor(ht);
-
- if (retval)
- return new(ctx) ir_dereference_variable(retval);
- else
- return NULL;
}
ir_function_inlining_visitor::visit_enter(ir_call *ir)
{
if (can_inline(ir)) {
- /* If the call was part of some tree, then it should have been
- * flattened out or we shouldn't have seen it because of a
- * visit_continue_with_parent in this visitor.
- */
- assert(ir == base_ir);
-
- (void) ir->generate_inline(ir);
+ ir->generate_inline(ir);
ir->remove();
this->progress = true;
}
}
-ir_visitor_status
-ir_function_inlining_visitor::visit_enter(ir_assignment *ir)
-{
- ir_call *call = ir->rhs->as_call();
- if (!call || !can_inline(call))
- return visit_continue;
-
- /* generates the parameter setup, function body, and returns the return
- * value of the function
- */
- ir_rvalue *rhs = call->generate_inline(ir);
- assert(rhs);
-
- ir->rhs = rhs;
- this->progress = true;
-
- return visit_continue;
-}
-
/**
- * Replaces references to the "sampler" variable with a clone of "deref."
+ * Replaces references to the "orig" variable with a clone of "repl."
*
- * From the spec, samplers can appear in the tree as function
+ * From the spec, opaque types can appear in the tree as function
* (non-out) parameters and as the result of array indexing and
* structure field selection. In our builtin implementation, they
* also appear in the sampler field of an ir_tex instruction.
*/
-class ir_sampler_replacement_visitor : public ir_hierarchical_visitor {
+class ir_variable_replacement_visitor : public ir_hierarchical_visitor {
public:
- ir_sampler_replacement_visitor(ir_variable *sampler, ir_dereference *deref)
+ ir_variable_replacement_visitor(ir_variable *orig, ir_dereference *repl)
{
- this->sampler = sampler;
- this->deref = deref;
+ this->orig = orig;
+ this->repl = repl;
}
- virtual ~ir_sampler_replacement_visitor()
+ virtual ~ir_variable_replacement_visitor()
{
}
void replace_deref(ir_dereference **deref);
void replace_rvalue(ir_rvalue **rvalue);
- ir_variable *sampler;
- ir_dereference *deref;
+ ir_variable *orig;
+ ir_dereference *repl;
};
void
-ir_sampler_replacement_visitor::replace_deref(ir_dereference **deref)
+ir_variable_replacement_visitor::replace_deref(ir_dereference **deref)
{
ir_dereference_variable *deref_var = (*deref)->as_dereference_variable();
- if (deref_var && deref_var->var == this->sampler) {
- *deref = this->deref->clone(talloc_parent(*deref), NULL);
+ if (deref_var && deref_var->var == this->orig) {
+ *deref = this->repl->clone(ralloc_parent(*deref), NULL);
}
}
void
-ir_sampler_replacement_visitor::replace_rvalue(ir_rvalue **rvalue)
+ir_variable_replacement_visitor::replace_rvalue(ir_rvalue **rvalue)
{
if (!*rvalue)
return;
}
ir_visitor_status
-ir_sampler_replacement_visitor::visit_leave(ir_texture *ir)
+ir_variable_replacement_visitor::visit_leave(ir_texture *ir)
{
replace_deref(&ir->sampler);
}
ir_visitor_status
-ir_sampler_replacement_visitor::visit_leave(ir_dereference_array *ir)
+ir_variable_replacement_visitor::visit_leave(ir_dereference_array *ir)
{
replace_rvalue(&ir->array);
return visit_continue;
}
ir_visitor_status
-ir_sampler_replacement_visitor::visit_leave(ir_dereference_record *ir)
+ir_variable_replacement_visitor::visit_leave(ir_dereference_record *ir)
{
replace_rvalue(&ir->record);
return visit_continue;
}
ir_visitor_status
-ir_sampler_replacement_visitor::visit_leave(ir_call *ir)
+ir_variable_replacement_visitor::visit_leave(ir_call *ir)
{
- foreach_iter(exec_list_iterator, iter, *ir) {
- ir_rvalue *param = (ir_rvalue *)iter.get();
+ foreach_in_list_safe(ir_rvalue, param, &ir->actual_parameters) {
ir_rvalue *new_param = param;
replace_rvalue(&new_param);
}
static void
-do_sampler_replacement(exec_list *instructions,
- ir_variable *sampler,
- ir_dereference *deref)
+do_variable_replacement(exec_list *instructions,
+ ir_variable *orig,
+ ir_dereference *repl)
{
- ir_sampler_replacement_visitor v(sampler, deref);
+ ir_variable_replacement_visitor v(orig, repl);
visit_list_elements(&v, instructions);
}
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