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_S2EN)
 126                         printf(".s2en");
 127         }
 128 }
 129
 130 static void print_reg_name(struct ir3_register *reg)
 131 {
 132         if ((reg->flags & (IR3_REG_FABS | IR3_REG_SABS)) &&
 133                         (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT)))
 134                 printf("(absneg)");
 135         else if (reg->flags & (IR3_REG_FNEG | IR3_REG_SNEG | IR3_REG_BNOT))
 136                 printf("(neg)");
 137         else if (reg->flags & (IR3_REG_FABS | IR3_REG_SABS))
 138                 printf("(abs)");
 139
 140         if (reg->flags & IR3_REG_HIGH)
 141                 printf("H");
 142         if (reg->flags & IR3_REG_HALF)
 143                 printf("h");
 144
 145         if (reg->flags & IR3_REG_IMMED) {
 146                 printf(SYN_IMMED("imm[%f,%d,0x%x]"), reg->fim_val, reg->iim_val, reg->iim_val);
 147         } else if (reg->flags & IR3_REG_ARRAY) {
 148                 printf(SYN_ARRAY("arr[id=%u, offset=%d, size=%u"), reg->array.id,
 149                                 reg->array.offset, reg->size);
 150                 /* for ARRAY we could have null src, for example first write
 151                  * instruction..
 152                  */
 153                 if (reg->instr) {
 154                         printf(SYN_ARRAY(", "));
 155                         printf(SYN_SSA("_["));
 156                         print_instr_name(reg->instr, false);
 157                         printf(SYN_SSA("]"));
 158                 }
 159                 printf(SYN_ARRAY("]"));
 160         } else if (reg->flags & IR3_REG_SSA) {
 161                 printf(SYN_SSA("_["));
 162                 print_instr_name(reg->instr, false);
 163                 printf(SYN_SSA("]"));
 164         } else if (reg->flags & IR3_REG_RELATIV) {
 165                 if (reg->flags & IR3_REG_CONST)
 166                         printf(SYN_CONST("c<a0.x + %d>"), reg->array.offset);
 167                 else
 168                         printf(SYN_REG("r<a0.x + %d>")" (%u)", reg->array.offset, reg->size);
 169         } else {
 170                 if (reg->flags & IR3_REG_CONST)
 171                         printf(SYN_CONST("c%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 172                 else
 173                         printf(SYN_REG("r%u.%c"), reg_num(reg), "xyzw"[reg_comp(reg)]);
 174         }
 175
 176         if (reg->wrmask > 0x1)
 177                 printf(" (wrmask=0x%x)", reg->wrmask);
 178 }
 179
 180 static void
 181 tab(int lvl)
 182 {
 183         for (int i = 0; i < lvl; i++)
 184                 printf("\t");
 185 }
 186
 187 static void
 188 print_instr(struct ir3_instruction *instr, int lvl)
 189 {
 190         unsigned i;
 191
 192         tab(lvl);
 193
 194         print_instr_name(instr, true);
 195
 196         if (is_tex(instr)) {
 197                 printf(" (%s)(", type_name(instr->cat5.type));
 198                 for (i = 0; i < 4; i++)
 199                         if (instr->regs[0]->wrmask & (1 << i))
 200                                 printf("%c", "xyzw"[i]);
 201                 printf(")");
 202         } else if (instr->regs_count > 0) {
 203                 printf(" ");
 204         }
 205
 206         for (i = 0; i < instr->regs_count; i++) {
 207                 struct ir3_register *reg = instr->regs[i];
 208
 209                 printf(i ? ", " : "");
 210                 print_reg_name(reg);
 211         }
 212
 213         if (is_tex(instr) && !(instr->flags & IR3_INSTR_S2EN))
 214                 printf(", s#%d, t#%d", instr->cat5.samp, instr->cat5.tex);
 215
 216         if (instr->address) {
 217                 printf(", address=_");
 218                 printf("[");
 219                 print_instr_name(instr->address, false);
 220                 printf("]");
 221         }
 222
 223         if (instr->cp.left) {
 224                 printf(", left=_");
 225                 printf("[");
 226                 print_instr_name(instr->cp.left, false);
 227                 printf("]");
 228         }
 229
 230         if (instr->cp.right) {
 231                 printf(", right=_");
 232                 printf("[");
 233                 print_instr_name(instr->cp.right, false);
 234                 printf("]");
 235         }
 236
 237         if (instr->opc == OPC_META_SPLIT) {
 238                 printf(", off=%d", instr->split.off);
 239         } else if (instr->opc == OPC_META_TEX_PREFETCH) {
 240                 printf(", tex=%d, samp=%d, input_offset=%d", instr->prefetch.tex,
 241                                 instr->prefetch.samp, instr->prefetch.input_offset);
 242         }
 243
 244         if (is_flow(instr) && instr->cat0.target) {
 245                 /* the predicate register src is implied: */
 246                 if (instr->opc == OPC_BR) {
 247                         printf(" %sp0.x", instr->cat0.inv ? "!" : "");
 248                 }
 249                 printf(", target=block%u", block_id(instr->cat0.target));
 250         }
 251
 252         if (instr->deps_count) {
 253                 printf(", false-deps:");
 254                 for (unsigned i = 0; i < instr->deps_count; i++) {
 255                         if (i > 0)
 256                                 printf(", ");
 257                         printf("_[");
 258                         print_instr_name(instr->deps[i], false);
 259                         printf("]");
 260                 }
 261         }
 262
 263         printf("\n");
 264 }
 265
 266 void ir3_print_instr(struct ir3_instruction *instr)
 267 {
 268         print_instr(instr, 0);
 269 }
 270
 271 static void
 272 print_block(struct ir3_block *block, int lvl)
 273 {
 274         tab(lvl); printf("block%u {\n", block_id(block));
 275
 276         /* computerator (ir3 assembler) doesn't really use blocks for flow
 277          * control, so block->predecessors will be null.
 278          */
 279         if (block->predecessors && block->predecessors->entries > 0) {
 280                 unsigned i = 0;
 281                 tab(lvl+1);
 282                 printf("pred: ");
 283                 set_foreach(block->predecessors, entry) {
 284                         struct ir3_block *pred = (struct ir3_block *)entry->key;
 285                         if (i++)
 286                                 printf(", ");
 287                         printf("block%u", block_id(pred));
 288                 }
 289                 printf("\n");
 290         }
 291
 292         foreach_instr (instr, &block->instr_list) {
 293                 print_instr(instr, lvl+1);
 294         }
 295
 296         tab(lvl+1); printf("/* keeps:\n");
 297         for (unsigned i = 0; i < block->keeps_count; i++) {
 298                 print_instr(block->keeps[i], lvl+2);
 299         }
 300         tab(lvl+1); printf(" */\n");
 301
 302         if (block->successors[1]) {
 303                 /* leading into if/else: */
 304                 tab(lvl+1);
 305                 printf("/* succs: if _[");
 306                 print_instr_name(block->condition, false);
 307                 printf("] block%u; else block%u; */\n",
 308                                 block_id(block->successors[0]),
 309                                 block_id(block->successors[1]));
 310         } else if (block->successors[0]) {
 311                 tab(lvl+1);
 312                 printf("/* succs: block%u; */\n",
 313                                 block_id(block->successors[0]));
 314         }
 315         tab(lvl); printf("}\n");
 316 }
 317
 318 void
 319 ir3_print(struct ir3 *ir)
 320 {
 321         foreach_block (block, &ir->block_list)
 322                 print_block(block, 0);
 323
 324         struct ir3_instruction *out;
 325         foreach_output_n (out, i, ir) {
 326                 printf("out%d: ", i);
 327                 print_instr(out, 0);
 328         }
 329 }