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         if (instr->flags & IR3_INSTR_UNUSED) {
  76                 printf("XXX: ");
  77         } else {
  78                 printf("%03u: ", instr->use_count);
  79         }
  80
  81         if (flags) {
  82                 printf("\t");
  83                 if (instr->flags & IR3_INSTR_SY)
  84                         printf("(sy)");
  85                 if (instr->flags & IR3_INSTR_SS)
  86                         printf("(ss)");
  87                 if (instr->flags & IR3_INSTR_JP)
  88                         printf("(jp)");
  89                 if (instr->repeat)
  90                         printf("(rpt%d)", instr->repeat);
  91                 if (instr->nop)
  92                         printf("(nop%d)", instr->nop);
  93                 if (instr->flags & IR3_INSTR_UL)
  94                         printf("(ul)");
  95         } else {
  96                 printf(" ");
  97         }
  98
  99         if (is_meta(instr)) {
 100                 switch (instr->opc) {
 101                 case OPC_META_INPUT:  printf("_meta:in");   break;
 102                 case OPC_META_SPLIT:        printf("_meta:split");        break;
 103                 case OPC_META_COLLECT:      printf("_meta:collect");      break;
 104                 case OPC_META_TEX_PREFETCH: printf("_meta:tex_prefetch"); break;
 105
 106                 /* shouldn't hit here.. just for debugging: */
 107                 default: printf("_meta:%d", instr->opc);    break;
 108                 }
 109         } else if (instr->opc == OPC_MOV) {
 110                 if (instr->cat1.src_type == instr->cat1.dst_type)
 111                         printf("mov");
 112                 else
 113                         printf("cov");
 114                 printf(".%s%s", type_name(instr->cat1.src_type),
 115                                 type_name(instr->cat1.dst_type));
 116         } else {
 117                 printf("%s", ir3_instr_name(instr));
 118                 if (instr->flags & IR3_INSTR_3D)
 119                         printf(".3d");
 120                 if (instr->flags & IR3_INSTR_A)
 121                         printf(".a");
 122                 if (instr->flags & IR3_INSTR_O)
 123                         printf(".o");
 124                 if (instr->flags & IR3_INSTR_P)
 125                         printf(".p");
 126                 if (instr->flags & IR3_INSTR_S)
 127                         printf(".s");
 128                 if (instr->flags & IR3_INSTR_A1EN)
 129                         printf(".a1en");
 130                 if (instr->flags & IR3_INSTR_B) {
 131                         printf(".base%d",
 132                                    is_tex(instr) ? instr->cat5.tex_base : instr->cat6.base);
 133                 }
 134                 if (instr->flags & IR3_INSTR_S2EN)
 135                         printf(".s2en");
 136         }
 137 }
 138
 139 static void print_reg_name(struct ir3_register *reg)
 140 {
 141         if ((reg->flags & (IR3_REG_FABS | IR3_REG_SABS)) &&
 142                         (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT)))
 143                 printf("(absneg)");
 144         else if (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT))
 145                 printf("(neg)");
 146         else if (reg->flags & (IR3_REG_FABS | IR3_REG_SABS))
 147                 printf("(abs)");
 148
 149         if (reg->flags & IR3_REG_HIGH)
 150                 printf("H");
 151         if (reg->flags & IR3_REG_HALF)
 152                 printf("h");
 153
 154         if (reg->flags & IR3_REG_IMMED) {
 155                 printf(SYN_IMMED("imm[%f,%d,0x%x]"), reg->fim_val, reg->iim_val, reg->iim_val);
 156         } else if (reg->flags & IR3_REG_ARRAY) {
 157                 printf(SYN_ARRAY("arr[id=%u, offset=%d, size=%u"), reg->array.id,
 158                                 reg->array.offset, reg->size);
 159                 /* for ARRAY we could have null src, for example first write
 160                  * instruction..
 161                  */
 162                 if (reg->instr) {
 163                         printf(SYN_ARRAY(", "));
 164                         printf(SYN_SSA("_["));
 165                         print_instr_name(reg->instr, false);
 166                         printf(SYN_SSA("]"));
 167                 }
 168                 printf(SYN_ARRAY("]"));
 169         } else if (reg->flags & IR3_REG_SSA) {
 170                 printf(SYN_SSA("_["));
 171                 print_instr_name(reg->instr, false);
 172                 printf(SYN_SSA("]"));
 173         } else if (reg->flags & IR3_REG_RELATIV) {
 174                 if (reg->flags & IR3_REG_CONST)
 175                         printf(SYN_CONST("c<a0.x + %d>"), reg->array.offset);
 176                 else
 177                         printf(SYN_REG("r<a0.x + %d>")" (%u)", reg->array.offset, reg->size);
 178         } else {
 179                 if (reg->flags & IR3_REG_CONST)
 180                         printf(SYN_CONST("c%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 181                 else
 182                         printf(SYN_REG("r%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 183         }
 184
 185         if (reg->wrmask > 0x1)
 186                 printf(" (wrmask=0x%x)", reg->wrmask);
 187 }
 188
 189 static void
 190 tab(int lvl)
 191 {
 192         for (int i = 0; i < lvl; i++)
 193                 printf("\t");
 194 }
 195
 196 static void
 197 print_instr(struct ir3_instruction *instr, int lvl)
 198 {
 199         unsigned i;
 200
 201         tab(lvl);
 202
 203         print_instr_name(instr, true);
 204
 205         if (is_tex(instr)) {
 206                 printf(" (%s)(", type_name(instr->cat5.type));
 207                 for (i = 0; i < 4; i++)
 208                         if (instr->regs[0]->wrmask & (1 << i))
 209                                 printf("%c", "xyzw"[i]);
 210                 printf(")");
 211         } else if (instr->regs_count > 0) {
 212                 printf(" ");
 213         }
 214
 215         for (i = 0; i < instr->regs_count; i++) {
 216                 struct ir3_register *reg = instr->regs[i];
 217
 218                 printf(i ? ", " : "");
 219                 print_reg_name(reg);
 220         }
 221
 222         if (is_tex(instr) && !(instr->flags & IR3_INSTR_S2EN)) {
 223                 if (!!(instr->flags & IR3_INSTR_B)) {
 224                         if (!!(instr->flags & IR3_INSTR_A1EN)) {
 225                                 printf(", s#%d", instr->cat5.samp);
 226                         } else {
 227                                 printf(", s#%d, t#%d", instr->cat5.samp & 0xf,
 228                                            instr->cat5.samp >> 4);
 229                         }
 230                 } else {
 231                         printf(", s#%d, t#%d", instr->cat5.samp, instr->cat5.tex);
 232                 }
 233         }
 234
 235         if (instr->address) {
 236                 printf(", address=_");
 237                 printf("[");
 238                 print_instr_name(instr->address, false);
 239                 printf("]");
 240         }
 241
 242         if (instr->cp.left) {
 243                 printf(", left=_");
 244                 printf("[");
 245                 print_instr_name(instr->cp.left, false);
 246                 printf("]");
 247         }
 248
 249         if (instr->cp.right) {
 250                 printf(", right=_");
 251                 printf("[");
 252                 print_instr_name(instr->cp.right, false);
 253                 printf("]");
 254         }
 255
 256         if (instr->opc == OPC_META_SPLIT) {
 257                 printf(", off=%d", instr->split.off);
 258         } else if (instr->opc == OPC_META_TEX_PREFETCH) {
 259                 printf(", tex=%d, samp=%d, input_offset=%d", instr->prefetch.tex,
 260                                 instr->prefetch.samp, instr->prefetch.input_offset);
 261         }
 262
 263         if (is_flow(instr) && instr->cat0.target) {
 264                 /* the predicate register src is implied: */
 265                 if (instr->opc == OPC_BR) {
 266                         printf(" %sp0.x", instr->cat0.inv ? "!" : "");
 267                 }
 268                 printf(", target=block%u", block_id(instr->cat0.target));
 269         }
 270
 271         if (instr->deps_count) {
 272                 printf(", false-deps:");
 273                 for (unsigned i = 0; i < instr->deps_count; i++) {
 274                         if (i > 0)
 275                                 printf(", ");
 276                         printf("_[");
 277                         print_instr_name(instr->deps[i], false);
 278                         printf("]");
 279                 }
 280         }
 281
 282         printf("\n");
 283 }
 284
 285 void ir3_print_instr(struct ir3_instruction *instr)
 286 {
 287         print_instr(instr, 0);
 288 }
 289
 290 static void
 291 print_block(struct ir3_block *block, int lvl)
 292 {
 293         tab(lvl); printf("block%u {\n", block_id(block));
 294
 295         /* computerator (ir3 assembler) doesn't really use blocks for flow
 296          * control, so block->predecessors will be null.
 297          */
 298         if (block->predecessors && block->predecessors->entries > 0) {
 299                 unsigned i = 0;
 300                 tab(lvl+1);
 301                 printf("pred: ");
 302                 set_foreach(block->predecessors, entry) {
 303                         struct ir3_block *pred = (struct ir3_block *)entry->key;
 304                         if (i++)
 305                                 printf(", ");
 306                         printf("block%u", block_id(pred));
 307                 }
 308                 printf("\n");
 309         }
 310
 311         foreach_instr (instr, &block->instr_list) {
 312                 print_instr(instr, lvl+1);
 313         }
 314
 315         tab(lvl+1); printf("/* keeps:\n");
 316         for (unsigned i = 0; i < block->keeps_count; i++) {
 317                 print_instr(block->keeps[i], lvl+2);
 318         }
 319         tab(lvl+1); printf(" */\n");
 320
 321         if (block->successors[1]) {
 322                 /* leading into if/else: */
 323                 tab(lvl+1);
 324                 printf("/* succs: if _[");
 325                 print_instr_name(block->condition, false);
 326                 printf("] block%u; else block%u; */\n",
 327                                 block_id(block->successors[0]),
 328                                 block_id(block->successors[1]));
 329         } else if (block->successors[0]) {
 330                 tab(lvl+1);
 331                 printf("/* succs: block%u; */\n",
 332                                 block_id(block->successors[0]));
 333         }
 334         tab(lvl); printf("}\n");
 335 }
 336
 337 void
 338 ir3_print(struct ir3 *ir)
 339 {
 340         foreach_block (block, &ir->block_list)
 341                 print_block(block, 0);
 342
 343         struct ir3_instruction *out;
 344         foreach_output_n (out, i, ir) {
 345                 printf("out%d: ", i);
 346                 print_instr(out, 0);
 347         }
 348 }