1/*
2 * Copyright (C) 2021 Alyssa Rosenzweig <alyssa@rosenzweig.io>
3 * Copyright (C) 2019-2020 Collabora, Ltd.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25#include "agx_compiler.h"
26
27static void
28agx_print_sized(char prefix, unsigned value, enum agx_size size, FILE *fp)
29{
30   switch (size) {
31   case AGX_SIZE_16:
32      fprintf(fp, "%c%u%c", prefix, value >> 1, (value & 1) ? 'h' : 'l');
33      return;
34   case AGX_SIZE_32:
35      assert((value & 1) == 0);
36      fprintf(fp, "%c%u", prefix, value >> 1);
37      return;
38   case AGX_SIZE_64:
39      assert((value & 1) == 0);
40      fprintf(fp, "%c%u:%c%u", prefix, value >> 1,
41            prefix, (value >> 1) + 1);
42      return;
43   }
44
45   unreachable("Invalid size");
46}
47
48static void
49agx_print_index(agx_index index, FILE *fp)
50{
51   switch (index.type) {
52   case AGX_INDEX_NULL:
53      fprintf(fp, "_");
54      return;
55
56   case AGX_INDEX_NORMAL:
57      if (index.cache)
58         fprintf(fp, "$");
59
60      if (index.discard)
61         fprintf(fp, "`");
62
63      if (index.kill)
64         fprintf(fp, "*");
65
66      fprintf(fp, "%u", index.value);
67      break;
68
69   case AGX_INDEX_IMMEDIATE:
70      fprintf(fp, "#%u", index.value);
71      break;
72
73   case AGX_INDEX_UNIFORM:
74      agx_print_sized('u', index.value, index.size, fp);
75      break;
76
77   case AGX_INDEX_REGISTER:
78      agx_print_sized('r', index.value, index.size, fp);
79      break;
80
81   default:
82      unreachable("Invalid index type");
83   }
84
85   /* Print length suffixes if not implied */
86   if (index.type == AGX_INDEX_NORMAL || index.type == AGX_INDEX_IMMEDIATE) {
87      if (index.size == AGX_SIZE_16)
88         fprintf(fp, "h");
89      else if (index.size == AGX_SIZE_64)
90         fprintf(fp, "d");
91   }
92
93   if (index.abs)
94      fprintf(fp, ".abs");
95
96   if (index.neg)
97      fprintf(fp, ".neg");
98}
99
100void
101agx_print_instr(agx_instr *I, FILE *fp)
102{
103   assert(I->op < AGX_NUM_OPCODES);
104   struct agx_opcode_info info = agx_opcodes_info[I->op];
105
106   fprintf(fp, "   %s", info.name);
107
108   if (I->saturate)
109      fprintf(fp, ".sat");
110
111   if (I->last)
112      fprintf(fp, ".last");
113
114   fprintf(fp, " ");
115
116   bool print_comma = false;
117
118   for (unsigned d = 0; d < info.nr_dests; ++d) {
119      if (print_comma)
120         fprintf(fp, ", ");
121      else
122         print_comma = true;
123
124      agx_print_index(I->dest[d], fp);
125   }
126
127   for (unsigned s = 0; s < I->nr_srcs; ++s) {
128      if (print_comma)
129         fprintf(fp, ", ");
130      else
131         print_comma = true;
132
133      agx_print_index(I->src[s], fp);
134   }
135
136   if (I->mask) {
137      fprintf(fp, ", ");
138
139      for (unsigned i = 0; i < 4; ++i) {
140         if (I->mask & (1 << i))
141            fprintf(fp, "%c", "xyzw"[i]);
142      }
143   }
144
145   /* TODO: Do better for enums, truth tables, etc */
146   if (info.immediates) {
147      if (print_comma)
148         fprintf(fp, ", ");
149      else
150         print_comma = true;
151
152      fprintf(fp, "#%X", I->imm);
153   }
154
155   if (info.immediates & AGX_IMMEDIATE_DIM) {
156      if (print_comma)
157         fprintf(fp, ", ");
158      else
159         print_comma = true;
160
161      fprintf(fp, "dim %u", I->dim); // TODO enumify
162   }
163
164   if (info.immediates & AGX_IMMEDIATE_SCOREBOARD) {
165      if (print_comma)
166         fprintf(fp, ", ");
167      else
168         print_comma = true;
169
170      fprintf(fp, "slot %u", I->scoreboard);
171   }
172
173   if (info.immediates & AGX_IMMEDIATE_NEST) {
174      if (print_comma)
175         fprintf(fp, ", ");
176      else
177         print_comma = true;
178
179      fprintf(fp, "n=%u", I->nest);
180   }
181
182   if ((info.immediates & AGX_IMMEDIATE_INVERT_COND) && I->invert_cond) {
183      if (print_comma)
184         fprintf(fp, ", ");
185      else
186         print_comma = true;
187
188      fprintf(fp, "inv");
189   }
190
191   fprintf(fp, "\n");
192}
193
194void
195agx_print_block(agx_block *block, FILE *fp)
196{
197   fprintf(fp, "block%u {\n", block->index);
198
199   agx_foreach_instr_in_block(block, ins)
200      agx_print_instr(ins, fp);
201
202   fprintf(fp, "}");
203
204   if (block->successors[0]) {
205      fprintf(fp, " -> ");
206
207      agx_foreach_successor(block, succ)
208         fprintf(fp, "block%u ", succ->index);
209   }
210
211   if (block->predecessors.size) {
212      fprintf(fp, " from");
213
214      agx_foreach_predecessor(block, pred)
215         fprintf(fp, " block%u", (*pred)->index);
216   }
217
218   fprintf(fp, "\n\n");
219}
220
221void
222agx_print_shader(agx_context *ctx, FILE *fp)
223{
224   agx_foreach_block(ctx, block)
225      agx_print_block(block, fp);
226}
227