src/freedreno/ir3/ir3_print.c

   1 /*
   2  * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
   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 FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include <stdarg.h>
  28 #include <stdio.h>
  29
  30 #include "ir3.h"
  31
  32 #define PTRID(x) ((unsigned long)(x))
  33
  34 /* ansi escape sequences: */
  35 #define RESET   "\x1b[0m"
  36 #define RED             "\x1b[0;31m"
  37 #define GREEN   "\x1b[0;32m"
  38 #define BLUE    "\x1b[0;34m"
  39 #define MAGENTA "\x1b[0;35m"
  40
  41 /* syntax coloring, mostly to make it easier to see different sorts of
  42  * srcs (immediate, constant, ssa, array, ...)
  43  */
  44 #define SYN_REG(x)              RED x RESET
  45 #define SYN_IMMED(x)    GREEN x RESET
  46 #define SYN_CONST(x)    GREEN x RESET
  47 #define SYN_SSA(x)              BLUE x RESET
  48 #define SYN_ARRAY(x)    MAGENTA x RESET
  49
  50 static const char *
  51 type_name(type_t type)
  52 {
  53         static const char *type_names[] = {
  54                         [TYPE_F16] = "f16",
  55                         [TYPE_F32] = "f32",
  56                         [TYPE_U16] = "u16",
  57                         [TYPE_U32] = "u32",
  58                         [TYPE_S16] = "s16",
  59                         [TYPE_S32] = "s32",
  60                         [TYPE_U8]  = "u8",
  61                         [TYPE_S8]  = "s8",
  62         };
  63         return type_names[type];
  64 }
  65
  66 static void print_instr_name(struct ir3_instruction *instr, bool flags)
  67 {
  68         if (!instr)
  69                 return;
  70 #ifdef DEBUG
  71         printf("%04u:", instr->serialno);
  72 #endif
  73         printf("%04u:", instr->name);
  74         printf("%04u:", instr->ip);
  75         printf("%03d:", instr->depth);
  76         printf("%03u: ", instr->use_count);
  77
  78         if (flags) {
  79                 printf("\t");
  80                 if (instr->flags & IR3_INSTR_SY)
  81                         printf("(sy)");
  82                 if (instr->flags & IR3_INSTR_SS)
  83                         printf("(ss)");
  84                 if (instr->flags & IR3_INSTR_JP)
  85                         printf("(jp)");
  86                 if (instr->repeat)
  87                         printf("(rpt%d)", instr->repeat);
  88                 if (instr->nop)
  89                         printf("(nop%d)", instr->nop);
  90                 if (instr->flags & IR3_INSTR_UL)
  91                         printf("(ul)");
  92         } else {
  93                 printf(" ");
  94         }
  95
  96         if (is_meta(instr)) {
  97                 switch (instr->opc) {
  98                 case OPC_META_INPUT:  printf("_meta:in");   break;
  99                 case OPC_META_SPLIT:        printf("_meta:split");        break;
 100                 case OPC_META_COLLECT:      printf("_meta:collect");      break;
 101                 case OPC_META_TEX_PREFETCH: printf("_meta:tex_prefetch"); break;
 102
 103                 /* shouldn't hit here.. just for debugging: */
 104                 default: printf("_meta:%d", instr->opc);    break;
 105                 }
 106         } else if (instr->opc == OPC_MOV) {
 107                 if (instr->cat1.src_type == instr->cat1.dst_type)
 108                         printf("mov");
 109                 else
 110                         printf("cov");
 111                 printf(".%s%s", type_name(instr->cat1.src_type),
 112                                 type_name(instr->cat1.dst_type));
 113         } else {
 114                 printf("%s", ir3_instr_name(instr));
 115                 if (instr->flags & IR3_INSTR_3D)
 116                         printf(".3d");
 117                 if (instr->flags & IR3_INSTR_A)
 118                         printf(".a");
 119                 if (instr->flags & IR3_INSTR_O)
 120                         printf(".o");
 121                 if (instr->flags & IR3_INSTR_P)
 122                         printf(".p");
 123                 if (instr->flags & IR3_INSTR_S)
 124                         printf(".s");
 125                 if (instr->flags & IR3_INSTR_A1EN)
 126                         printf(".a1en");
 127                 if (instr->flags & IR3_INSTR_B) {
 128                         printf(".base%d",
 129                                    is_tex(instr) ? instr->cat5.tex_base : instr->cat6.base);
 130                 }
 131                 if (instr->flags & IR3_INSTR_S2EN)
 132                         printf(".s2en");
 133         }
 134 }
 135
 136 static void print_reg_name(struct ir3_register *reg)
 137 {
 138         if ((reg->flags & (IR3_REG_FABS | IR3_REG_SABS)) &&
 139                         (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT)))
 140                 printf("(absneg)");
 141         else if (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT))
 142                 printf("(neg)");
 143         else if (reg->flags & (IR3_REG_FABS | IR3_REG_SABS))
 144                 printf("(abs)");
 145
 146         if (reg->flags & IR3_REG_HIGH)
 147                 printf("H");
 148         if (reg->flags & IR3_REG_HALF)
 149                 printf("h");
 150
 151         if (reg->flags & IR3_REG_IMMED) {
 152                 printf(SYN_IMMED("imm[%f,%d,0x%x]"), reg->fim_val, reg->iim_val, reg->iim_val);
 153         } else if (reg->flags & IR3_REG_ARRAY) {
 154                 printf(SYN_ARRAY("arr[id=%u, offset=%d, size=%u"), reg->array.id,
 155                                 reg->array.offset, reg->size);
 156                 /* for ARRAY we could have null src, for example first write
 157                  * instruction..
 158                  */
 159                 if (reg->instr) {
 160                         printf(SYN_ARRAY(", "));
 161                         printf(SYN_SSA("_["));
 162                         print_instr_name(reg->instr, false);
 163                         printf(SYN_SSA("]"));
 164                 }
 165                 printf(SYN_ARRAY("]"));
 166         } else if (reg->flags & IR3_REG_SSA) {
 167                 printf(SYN_SSA("_["));
 168                 print_instr_name(reg->instr, false);
 169                 printf(SYN_SSA("]"));
 170         } else if (reg->flags & IR3_REG_RELATIV) {
 171                 if (reg->flags & IR3_REG_CONST)
 172                         printf(SYN_CONST("c<a0.x + %d>"), reg->array.offset);
 173                 else
 174                         printf(SYN_REG("r<a0.x + %d>")" (%u)", reg->array.offset, reg->size);
 175         } else {
 176                 if (reg->flags & IR3_REG_CONST)
 177                         printf(SYN_CONST("c%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 178                 else
 179                         printf(SYN_REG("r%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 180         }
 181
 182         if (reg->wrmask > 0x1)
 183                 printf(" (wrmask=0x%x)", reg->wrmask);
 184 }
 185
 186 static void
 187 tab(int lvl)
 188 {
 189         for (int i = 0; i < lvl; i++)
 190                 printf("\t");
 191 }
 192
 193 static void
 194 print_instr(struct ir3_instruction *instr, int lvl)
 195 {
 196         unsigned i;
 197
 198         tab(lvl);
 199
 200         print_instr_name(instr, true);
 201
 202         if (is_tex(instr)) {
 203                 printf(" (%s)(", type_name(instr->cat5.type));
 204                 for (i = 0; i < 4; i++)
 205                         if (instr->regs[0]->wrmask & (1 << i))
 206                                 printf("%c", "xyzw"[i]);
 207                 printf(")");
 208         } else if (instr->regs_count > 0) {
 209                 printf(" ");
 210         }
 211
 212         for (i = 0; i < instr->regs_count; i++) {
 213                 struct ir3_register *reg = instr->regs[i];
 214
 215                 printf(i ? ", " : "");
 216                 print_reg_name(reg);
 217         }
 218
 219         if (is_tex(instr) && !(instr->flags & IR3_INSTR_S2EN)) {
 220                 if (!!(instr->flags & IR3_INSTR_B)) {
 221                         if (!!(instr->flags & IR3_INSTR_A1EN)) {
 222                                 printf(", s#%d", instr->cat5.samp);
 223                         } else {
 224                                 printf(", s#%d, t#%d", instr->cat5.samp & 0xf,
 225                                            instr->cat5.samp >> 4);
 226                         }
 227                 } else {
 228                         printf(", s#%d, t#%d", instr->cat5.samp, instr->cat5.tex);
 229                 }
 230         }
 231
 232         if (instr->address) {
 233                 printf(", address=_");
 234                 printf("[");
 235                 print_instr_name(instr->address, false);
 236                 printf("]");
 237         }
 238
 239         if (instr->cp.left) {
 240                 printf(", left=_");
 241                 printf("[");
 242                 print_instr_name(instr->cp.left, false);
 243                 printf("]");
 244         }
 245
 246         if (instr->cp.right) {
 247                 printf(", right=_");
 248                 printf("[");
 249                 print_instr_name(instr->cp.right, false);
 250                 printf("]");
 251         }
 252
 253         if (instr->opc == OPC_META_SPLIT) {
 254                 printf(", off=%d", instr->split.off);
 255         } else if (instr->opc == OPC_META_TEX_PREFETCH) {
 256                 printf(", tex=%d, samp=%d, input_offset=%d", instr->prefetch.tex,
 257                                 instr->prefetch.samp, instr->prefetch.input_offset);
 258         }
 259
 260         if (is_flow(instr) && instr->cat0.target) {
 261                 /* the predicate register src is implied: */
 262                 if (instr->opc == OPC_BR) {
 263                         printf(" %sp0.x", instr->cat0.inv ? "!" : "");
 264                 }
 265                 printf(", target=block%u", block_id(instr->cat0.target));
 266         }
 267
 268         if (instr->deps_count) {
 269                 printf(", false-deps:");
 270                 for (unsigned i = 0; i < instr->deps_count; i++) {
 271                         if (i > 0)
 272                                 printf(", ");
 273                         printf("_[");
 274                         print_instr_name(instr->deps[i], false);
 275                         printf("]");
 276                 }
 277         }
 278
 279         printf("\n");
 280 }
 281
 282 void ir3_print_instr(struct ir3_instruction *instr)
 283 {
 284         print_instr(instr, 0);
 285 }
 286
 287 static void
 288 print_block(struct ir3_block *block, int lvl)
 289 {
 290         tab(lvl); printf("block%u {\n", block_id(block));
 291
 292         /* computerator (ir3 assembler) doesn't really use blocks for flow
 293          * control, so block->predecessors will be null.
 294          */
 295         if (block->predecessors && block->predecessors->entries > 0) {
 296                 unsigned i = 0;
 297                 tab(lvl+1);
 298                 printf("pred: ");
 299                 set_foreach(block->predecessors, entry) {
 300                         struct ir3_block *pred = (struct ir3_block *)entry->key;
 301                         if (i++)
 302                                 printf(", ");
 303                         printf("block%u", block_id(pred));
 304                 }
 305                 printf("\n");
 306         }
 307
 308         foreach_instr (instr, &block->instr_list) {
 309                 print_instr(instr, lvl+1);
 310         }
 311
 312         tab(lvl+1); printf("/* keeps:\n");
 313         for (unsigned i = 0; i < block->keeps_count; i++) {
 314                 print_instr(block->keeps[i], lvl+2);
 315         }
 316         tab(lvl+1); printf(" */\n");
 317
 318         if (block->successors[1]) {
 319                 /* leading into if/else: */
 320                 tab(lvl+1);
 321                 printf("/* succs: if _[");
 322                 print_instr_name(block->condition, false);
 323                 printf("] block%u; else block%u; */\n",
 324                                 block_id(block->successors[0]),
 325                                 block_id(block->successors[1]));
 326         } else if (block->successors[0]) {
 327                 tab(lvl+1);
 328                 printf("/* succs: block%u; */\n",
 329                                 block_id(block->successors[0]));
 330         }
 331         tab(lvl); printf("}\n");
 332 }
 333
 334 void
 335 ir3_print(struct ir3 *ir)
 336 {
 337         foreach_block (block, &ir->block_list)
 338                 print_block(block, 0);
 339
 340         struct ir3_instruction *out;
 341         foreach_output_n (out, i, ir) {
 342                 printf("out%d: ", i);
 343                 print_instr(out, 0);
 344         }
 345 }