1 /* 2 * Copyright 2010 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 /** 25 * \file ir_rvalue_visitor.cpp 26 * 27 * Generic class to implement the common pattern we have of wanting to 28 * visit each ir_rvalue * and possibly change that node to a different 29 * class. 30 */ 31 32 #include "ir.h" 33 #include "ir_visitor.h" 34 #include "ir_rvalue_visitor.h" 35 #include "ir_print_visitor.h" 36 #include "glsl_types.h" 37 38 ir_visitor_status 39 ir_rvalue_visitor::visit_leave(ir_expression *ir) 40 { 41 unsigned int operand; 42 43 for (operand = 0; operand < ir->get_num_operands(); operand++) { 44 handle_rvalue(&ir->operands[operand]); 45 } 46 47 return visit_continue; 48 } 49 50 ir_visitor_status 51 ir_rvalue_visitor::visit_leave(ir_texture *ir) 52 { 53 handle_rvalue(&ir->coordinate); 54 handle_rvalue(&ir->projector); 55 handle_rvalue(&ir->shadow_comparitor); 56 57 switch (ir->op) { 58 case ir_tex: 59 break; 60 case ir_txb: 61 handle_rvalue(&ir->lod_info.bias); 62 break; 63 case ir_txf: 64 case ir_txl: 65 handle_rvalue(&ir->lod_info.lod); 66 break; 67 case ir_txd: 68 handle_rvalue(&ir->lod_info.grad.dPdx); 69 handle_rvalue(&ir->lod_info.grad.dPdy); 70 break; 71 } 72 73 return visit_continue; 74 } 75 76 ir_visitor_status 77 ir_rvalue_visitor::visit_leave(ir_swizzle *ir) 78 { 79 handle_rvalue(&ir->val); 80 return visit_continue; 81 } 82 83 ir_visitor_status 84 ir_rvalue_visitor::visit_leave(ir_dereference_array *ir) 85 { 86 /* The array index is not the target of the assignment, so clear the 87 * 'in_assignee' flag. Restore it after returning from the array index. 88 */ 89 const bool was_in_assignee = this->in_assignee; 90 this->in_assignee = false; 91 handle_rvalue(&ir->array_index); 92 this->in_assignee = was_in_assignee; 93 94 handle_rvalue(&ir->array); 95 return visit_continue; 96 } 97 98 ir_visitor_status 99 ir_rvalue_visitor::visit_leave(ir_dereference_record *ir) 100 { 101 handle_rvalue(&ir->record); 102 return visit_continue; 103 } 104 105 ir_visitor_status 106 ir_rvalue_visitor::visit_leave(ir_assignment *ir) 107 { 108 handle_rvalue(&ir->rhs); 109 handle_rvalue(&ir->condition); 110 111 return visit_continue; 112 } 113 114 ir_visitor_status 115 ir_rvalue_visitor::visit_leave(ir_call *ir) 116 { 117 foreach_iter(exec_list_iterator, iter, *ir) { 118 ir_rvalue *param = (ir_rvalue *)iter.get(); 119 ir_rvalue *new_param = param; 120 handle_rvalue(&new_param); 121 122 if (new_param != param) { 123 param->replace_with(new_param); 124 } 125 } 126 return visit_continue; 127 } 128 129 ir_visitor_status 130 ir_rvalue_visitor::visit_leave(ir_return *ir) 131 { 132 handle_rvalue(&ir->value);; 133 return visit_continue; 134 } 135 136 ir_visitor_status 137 ir_rvalue_visitor::visit_leave(ir_if *ir) 138 { 139 handle_rvalue(&ir->condition); 140 return visit_continue; 141 } 142