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 "compiler/glsl_types.h"
36
37 ir_visitor_status
rvalue_visit(ir_expression * ir)38 ir_rvalue_base_visitor::rvalue_visit(ir_expression *ir)
39 {
40 unsigned int operand;
41
42 for (operand = 0; operand < ir->num_operands; operand++) {
43 handle_rvalue(&ir->operands[operand]);
44 }
45
46 return visit_continue;
47 }
48
49 ir_visitor_status
rvalue_visit(ir_texture * ir)50 ir_rvalue_base_visitor::rvalue_visit(ir_texture *ir)
51 {
52 handle_rvalue(&ir->coordinate);
53 handle_rvalue(&ir->projector);
54 handle_rvalue(&ir->shadow_comparator);
55 handle_rvalue(&ir->offset);
56 handle_rvalue(&ir->clamp);
57
58 switch (ir->op) {
59 case ir_tex:
60 case ir_lod:
61 case ir_query_levels:
62 case ir_texture_samples:
63 case ir_samples_identical:
64 break;
65 case ir_txb:
66 handle_rvalue(&ir->lod_info.bias);
67 break;
68 case ir_txf:
69 case ir_txl:
70 case ir_txs:
71 handle_rvalue(&ir->lod_info.lod);
72 break;
73 case ir_txf_ms:
74 handle_rvalue(&ir->lod_info.sample_index);
75 break;
76 case ir_txd:
77 handle_rvalue(&ir->lod_info.grad.dPdx);
78 handle_rvalue(&ir->lod_info.grad.dPdy);
79 break;
80 case ir_tg4:
81 handle_rvalue(&ir->lod_info.component);
82 break;
83 }
84
85 return visit_continue;
86 }
87
88 ir_visitor_status
rvalue_visit(ir_swizzle * ir)89 ir_rvalue_base_visitor::rvalue_visit(ir_swizzle *ir)
90 {
91 handle_rvalue(&ir->val);
92 return visit_continue;
93 }
94
95 ir_visitor_status
rvalue_visit(ir_dereference_array * ir)96 ir_rvalue_base_visitor::rvalue_visit(ir_dereference_array *ir)
97 {
98 /* The array index is not the target of the assignment, so clear the
99 * 'in_assignee' flag. Restore it after returning from the array index.
100 */
101 const bool was_in_assignee = this->in_assignee;
102 this->in_assignee = false;
103 handle_rvalue(&ir->array_index);
104 this->in_assignee = was_in_assignee;
105
106 handle_rvalue(&ir->array);
107 return visit_continue;
108 }
109
110 ir_visitor_status
rvalue_visit(ir_dereference_record * ir)111 ir_rvalue_base_visitor::rvalue_visit(ir_dereference_record *ir)
112 {
113 handle_rvalue(&ir->record);
114 return visit_continue;
115 }
116
117 ir_visitor_status
rvalue_visit(ir_assignment * ir)118 ir_rvalue_base_visitor::rvalue_visit(ir_assignment *ir)
119 {
120 handle_rvalue(&ir->rhs);
121 return visit_continue;
122 }
123
124 ir_visitor_status
rvalue_visit(ir_call * ir)125 ir_rvalue_base_visitor::rvalue_visit(ir_call *ir)
126 {
127 foreach_in_list_safe(ir_rvalue, param, &ir->actual_parameters) {
128 ir_rvalue *new_param = param;
129 handle_rvalue(&new_param);
130
131 if (new_param != param) {
132 param->replace_with(new_param);
133 }
134 }
135 return visit_continue;
136 }
137
138 ir_visitor_status
rvalue_visit(ir_discard * ir)139 ir_rvalue_base_visitor::rvalue_visit(ir_discard *ir)
140 {
141 handle_rvalue(&ir->condition);
142 return visit_continue;
143 }
144
145 ir_visitor_status
rvalue_visit(ir_return * ir)146 ir_rvalue_base_visitor::rvalue_visit(ir_return *ir)
147 {
148 handle_rvalue(&ir->value);
149 return visit_continue;
150 }
151
152 ir_visitor_status
rvalue_visit(ir_if * ir)153 ir_rvalue_base_visitor::rvalue_visit(ir_if *ir)
154 {
155 handle_rvalue(&ir->condition);
156 return visit_continue;
157 }
158
159 ir_visitor_status
rvalue_visit(ir_emit_vertex * ir)160 ir_rvalue_base_visitor::rvalue_visit(ir_emit_vertex *ir)
161 {
162 handle_rvalue(&ir->stream);
163 return visit_continue;
164 }
165
166 ir_visitor_status
rvalue_visit(ir_end_primitive * ir)167 ir_rvalue_base_visitor::rvalue_visit(ir_end_primitive *ir)
168 {
169 handle_rvalue(&ir->stream);
170 return visit_continue;
171 }
172
173 ir_visitor_status
visit_leave(ir_expression * ir)174 ir_rvalue_visitor::visit_leave(ir_expression *ir)
175 {
176 return rvalue_visit(ir);
177 }
178
179 ir_visitor_status
visit_leave(ir_texture * ir)180 ir_rvalue_visitor::visit_leave(ir_texture *ir)
181 {
182 return rvalue_visit(ir);
183 }
184
185 ir_visitor_status
visit_leave(ir_swizzle * ir)186 ir_rvalue_visitor::visit_leave(ir_swizzle *ir)
187 {
188 return rvalue_visit(ir);
189 }
190
191 ir_visitor_status
visit_leave(ir_dereference_array * ir)192 ir_rvalue_visitor::visit_leave(ir_dereference_array *ir)
193 {
194 return rvalue_visit(ir);
195 }
196
197 ir_visitor_status
visit_leave(ir_dereference_record * ir)198 ir_rvalue_visitor::visit_leave(ir_dereference_record *ir)
199 {
200 return rvalue_visit(ir);
201 }
202
203 ir_visitor_status
visit_leave(ir_assignment * ir)204 ir_rvalue_visitor::visit_leave(ir_assignment *ir)
205 {
206 return rvalue_visit(ir);
207 }
208
209 ir_visitor_status
visit_leave(ir_call * ir)210 ir_rvalue_visitor::visit_leave(ir_call *ir)
211 {
212 return rvalue_visit(ir);
213 }
214
215 ir_visitor_status
visit_leave(ir_discard * ir)216 ir_rvalue_visitor::visit_leave(ir_discard *ir)
217 {
218 return rvalue_visit(ir);
219 }
220
221 ir_visitor_status
visit_leave(ir_return * ir)222 ir_rvalue_visitor::visit_leave(ir_return *ir)
223 {
224 return rvalue_visit(ir);
225 }
226
227 ir_visitor_status
visit_leave(ir_if * ir)228 ir_rvalue_visitor::visit_leave(ir_if *ir)
229 {
230 return rvalue_visit(ir);
231 }
232
233 ir_visitor_status
visit_leave(ir_emit_vertex * ir)234 ir_rvalue_visitor::visit_leave(ir_emit_vertex *ir)
235 {
236 return rvalue_visit(ir);
237 }
238
239 ir_visitor_status
visit_leave(ir_end_primitive * ir)240 ir_rvalue_visitor::visit_leave(ir_end_primitive *ir)
241 {
242 return rvalue_visit(ir);
243 }
244
245 ir_visitor_status
visit_enter(ir_expression * ir)246 ir_rvalue_enter_visitor::visit_enter(ir_expression *ir)
247 {
248 return rvalue_visit(ir);
249 }
250
251 ir_visitor_status
visit_enter(ir_texture * ir)252 ir_rvalue_enter_visitor::visit_enter(ir_texture *ir)
253 {
254 return rvalue_visit(ir);
255 }
256
257 ir_visitor_status
visit_enter(ir_swizzle * ir)258 ir_rvalue_enter_visitor::visit_enter(ir_swizzle *ir)
259 {
260 return rvalue_visit(ir);
261 }
262
263 ir_visitor_status
visit_enter(ir_dereference_array * ir)264 ir_rvalue_enter_visitor::visit_enter(ir_dereference_array *ir)
265 {
266 return rvalue_visit(ir);
267 }
268
269 ir_visitor_status
visit_enter(ir_dereference_record * ir)270 ir_rvalue_enter_visitor::visit_enter(ir_dereference_record *ir)
271 {
272 return rvalue_visit(ir);
273 }
274
275 ir_visitor_status
visit_enter(ir_assignment * ir)276 ir_rvalue_enter_visitor::visit_enter(ir_assignment *ir)
277 {
278 return rvalue_visit(ir);
279 }
280
281 ir_visitor_status
visit_enter(ir_call * ir)282 ir_rvalue_enter_visitor::visit_enter(ir_call *ir)
283 {
284 return rvalue_visit(ir);
285 }
286
287 ir_visitor_status
visit_enter(ir_discard * ir)288 ir_rvalue_enter_visitor::visit_enter(ir_discard *ir)
289 {
290 return rvalue_visit(ir);
291 }
292
293 ir_visitor_status
visit_enter(ir_return * ir)294 ir_rvalue_enter_visitor::visit_enter(ir_return *ir)
295 {
296 return rvalue_visit(ir);
297 }
298
299 ir_visitor_status
visit_enter(ir_if * ir)300 ir_rvalue_enter_visitor::visit_enter(ir_if *ir)
301 {
302 return rvalue_visit(ir);
303 }
304
305 ir_visitor_status
visit_enter(ir_emit_vertex * ir)306 ir_rvalue_enter_visitor::visit_enter(ir_emit_vertex *ir)
307 {
308 return rvalue_visit(ir);
309 }
310
311 ir_visitor_status
visit_enter(ir_end_primitive * ir)312 ir_rvalue_enter_visitor::visit_enter(ir_end_primitive *ir)
313 {
314 return rvalue_visit(ir);
315 }
316