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/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* \file ir_rvalue_visitor.cpp
*
* Generic class to implement the common pattern we have of wanting to
* visit each ir_rvalue * and possibly change that node to a different
* class.
*/
#include "ir.h"
#include "ir_visitor.h"
#include "ir_rvalue_visitor.h"
#include "ir_print_visitor.h"
#include "glsl_types.h"
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_expression *ir)
{
unsigned int operand;
for (operand = 0; operand < ir->get_num_operands(); operand++) {
handle_rvalue(&ir->operands[operand]);
}
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_texture *ir)
{
handle_rvalue(&ir->coordinate);
handle_rvalue(&ir->projector);
handle_rvalue(&ir->shadow_comparitor);
handle_rvalue(&ir->offset);
switch (ir->op) {
case ir_tex:
break;
case ir_txb:
handle_rvalue(&ir->lod_info.bias);
break;
case ir_txf:
case ir_txl:
case ir_txs:
handle_rvalue(&ir->lod_info.lod);
break;
case ir_txd:
handle_rvalue(&ir->lod_info.grad.dPdx);
handle_rvalue(&ir->lod_info.grad.dPdy);
break;
}
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_swizzle *ir)
{
handle_rvalue(&ir->val);
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_dereference_array *ir)
{
/* The array index is not the target of the assignment, so clear the
* 'in_assignee' flag. Restore it after returning from the array index.
*/
const bool was_in_assignee = this->in_assignee;
this->in_assignee = false;
handle_rvalue(&ir->array_index);
this->in_assignee = was_in_assignee;
handle_rvalue(&ir->array);
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_dereference_record *ir)
{
handle_rvalue(&ir->record);
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_assignment *ir)
{
handle_rvalue(&ir->rhs);
handle_rvalue(&ir->condition);
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_call *ir)
{
foreach_iter(exec_list_iterator, iter, *ir) {
ir_rvalue *param = (ir_rvalue *)iter.get();
ir_rvalue *new_param = param;
handle_rvalue(&new_param);
if (new_param != param) {
param->replace_with(new_param);
}
}
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_return *ir)
{
handle_rvalue(&ir->value);;
return visit_continue;
}
ir_visitor_status
ir_rvalue_visitor::visit_leave(ir_if *ir)
{
handle_rvalue(&ir->condition);
return visit_continue;
}
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