ir_print_visitor.cpp

   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 #include <cstdio>
  24 #include "ir_print_visitor.h"
  25 #include "glsl_types.h"
  26 #include "glsl_parser_extras.h"
  27
  28 static void print_type(const glsl_type *t);
  29
  30 void
  31 _mesa_print_ir(exec_list *instructions,
  32                struct _mesa_glsl_parse_state *state)
  33 {
  34    for (unsigned i = 0; i < state->num_user_structures; i++) {
  35       const glsl_type *const s = state->user_structures[i];
  36
  37       printf("(structure (%s) (%s@%p) (%u) (\n",
  38              s->name, s->name, s, s->length);
  39
  40       for (unsigned j = 0; j < s->length; j++) {
  41          printf("\t((");
  42          print_type(s->fields.structure[j].type);
  43          printf(")(%s))\n", s->fields.structure[j].name);
  44       }
  45
  46       printf(")\n");
  47    }
  48
  49    printf("(\n");
  50    foreach_iter(exec_list_iterator, iter, *instructions) {
  51       ir_print_visitor v;
  52
  53       ((ir_instruction *)iter.get())->accept(& v);
  54       printf("\n");
  55    }
  56    printf("\n)");
  57 }
  58
  59 static void
  60 print_type(const glsl_type *t)
  61 {
  62    if (t->base_type == GLSL_TYPE_ARRAY) {
  63       printf("(array ");
  64       print_type(t->fields.array);
  65       printf(" %u)", t->length);
  66    } else if ((t->base_type == GLSL_TYPE_STRUCT)
  67               && (strncmp("gl_", t->name, 3) != 0)) {
  68       printf("%s@%p", t->name, t);
  69    } else {
  70       printf("%s", t->name);
  71    }
  72 }
  73
  74
  75 void ir_print_visitor::visit(ir_variable *ir)
  76 {
  77    if (deref_depth) {
  78       printf("%s", ir->name);
  79    } else {
  80       printf("(declare ");
  81
  82       const char *const cent = (ir->centroid) ? "centroid " : "";
  83       const char *const inv = (ir->invariant) ? "invariant " : "";
  84       const char *const mode[] = { "", "uniform ", "in ", "out ", "inout " };
  85       const char *const interp[] = { "", "flat", "noperspective" };
  86
  87       printf("(%s%s%s%s) ",
  88              cent, inv, mode[ir->mode], interp[ir->interpolation]);
  89
  90       print_type(ir->type);
  91       printf(" %s)", ir->name);
  92    }
  93 }
  94
  95
  96 void ir_print_visitor::visit(ir_function_signature *ir)
  97 {
  98    printf("(signature ");
  99    print_type(ir->return_type);
 100    printf("\n  (parameters\n");
 101    foreach_iter(exec_list_iterator, iter, ir->parameters) {
 102       ir_variable *const inst = (ir_variable *) iter.get();
 103
 104       inst->accept(this);
 105       printf("\n");
 106    }
 107    printf("  )\n(");
 108
 109    foreach_iter(exec_list_iterator, iter, ir->body) {
 110       ir_instruction *const inst = (ir_instruction *) iter.get();
 111
 112       inst->accept(this);
 113       printf("\n");
 114    }
 115    printf("))\n");
 116 }
 117
 118
 119 void ir_print_visitor::visit(ir_function *ir)
 120 {
 121    printf("(function %s\n", ir->name);
 122    foreach_iter(exec_list_iterator, iter, *ir) {
 123       ir_function_signature *const sig = (ir_function_signature *) iter.get();
 124
 125       sig->accept(this);
 126       printf("\n");
 127    }
 128
 129    printf(")\n");
 130 }
 131
 132
 133 void ir_print_visitor::visit(ir_expression *ir)
 134 {
 135    printf("(expression ");
 136
 137    print_type(ir->type);
 138
 139    printf(" %s ", ir->operator_string());
 140
 141    if (ir->operands[0])
 142       ir->operands[0]->accept(this);
 143
 144    if (ir->operands[1])
 145       ir->operands[1]->accept(this);
 146    printf(") ");
 147 }
 148
 149
 150 void ir_print_visitor::visit(ir_swizzle *ir)
 151 {
 152    const unsigned swiz[4] = {
 153       ir->mask.x,
 154       ir->mask.y,
 155       ir->mask.z,
 156       ir->mask.w,
 157    };
 158
 159    printf("(swiz ");
 160    for (unsigned i = 0; i < ir->mask.num_components; i++) {
 161       printf("%c", "xyzw"[swiz[i]]);
 162    }
 163    printf(" ");
 164    ir->val->accept(this);
 165    printf(")");
 166 }
 167
 168
 169 void ir_print_visitor::visit(ir_dereference *ir)
 170 {
 171    deref_depth++;
 172
 173    switch (ir->mode) {
 174    case ir_dereference::ir_reference_variable: {
 175       printf("(var_ref ");
 176       ir->var->accept(this);
 177       printf(") ");
 178       break;
 179    }
 180    case ir_dereference::ir_reference_array:
 181       printf("(array_ref ");
 182       ir->var->accept(this);
 183       ir->selector.array_index->accept(this);
 184       printf(") ");
 185       break;
 186    case ir_dereference::ir_reference_record:
 187       printf("(record_ref ");
 188       ir->var->accept(this);
 189       printf("(%s)) ", ir->selector.field);
 190       break;
 191    }
 192
 193    deref_depth--;
 194 }
 195
 196
 197 void ir_print_visitor::visit(ir_assignment *ir)
 198 {
 199    printf("(assign ");
 200
 201    if (ir->condition)
 202       ir->condition->accept(this);
 203    else
 204       printf("(constant bool (1))");
 205
 206    printf(" ");
 207
 208    ir->lhs->accept(this);
 209
 210    printf(" ");
 211
 212    ir->rhs->accept(this);
 213    printf(") ");
 214 }
 215
 216
 217 void ir_print_visitor::visit(ir_constant *ir)
 218 {
 219    const glsl_type *const base_type = ir->type->get_base_type();
 220
 221    printf("(constant ");
 222    print_type(ir->type);
 223    printf(" (");
 224
 225    for (unsigned i = 0; i < ir->type->components(); i++) {
 226       if (i != 0)
 227          printf(", ");
 228
 229       switch (base_type->base_type) {
 230       case GLSL_TYPE_UINT:  printf("%u", ir->value.u[i]); break;
 231       case GLSL_TYPE_INT:   printf("%d", ir->value.i[i]); break;
 232       case GLSL_TYPE_FLOAT: printf("%f", ir->value.f[i]); break;
 233       case GLSL_TYPE_BOOL:  printf("%d", ir->value.b[i]); break;
 234       default: assert(0);
 235       }
 236    }
 237    printf(")) ");
 238 }
 239
 240
 241 void
 242 ir_print_visitor::visit(ir_call *ir)
 243 {
 244    printf("(call %s (", ir->callee_name());
 245    foreach_iter(exec_list_iterator, iter, *ir) {
 246       ir_instruction *const inst = (ir_instruction *) iter.get();
 247
 248       inst->accept(this);
 249    }
 250    printf("))\n");
 251 }
 252
 253
 254 void
 255 ir_print_visitor::visit(ir_return *ir)
 256 {
 257    printf("(return");
 258
 259    ir_rvalue *const value = ir->get_value();
 260    if (value) {
 261       printf(" ");
 262       value->accept(this);
 263    }
 264
 265    printf(")");
 266 }
 267
 268
 269 void
 270 ir_print_visitor::visit(ir_if *ir)
 271 {
 272    printf("(if ");
 273    ir->condition->accept(this);
 274
 275    printf("(\n");
 276    foreach_iter(exec_list_iterator, iter, ir->then_instructions) {
 277       ir_instruction *const inst = (ir_instruction *) iter.get();
 278
 279       inst->accept(this);
 280       printf("\n");
 281    }
 282    printf(")\n");
 283
 284    printf("(\n");
 285    foreach_iter(exec_list_iterator, iter, ir->else_instructions) {
 286       ir_instruction *const inst = (ir_instruction *) iter.get();
 287
 288       inst->accept(this);
 289       printf("\n");
 290    }
 291    printf("))\n");
 292 }
 293
 294
 295 void
 296 ir_print_visitor::visit(ir_loop *ir)
 297 {
 298    printf("(loop (");
 299    if (ir->counter != NULL)
 300       ir->counter->accept(this);
 301    printf(") (");
 302    if (ir->from != NULL)
 303       ir->from->accept(this);
 304    printf(") (");
 305    if (ir->to != NULL)
 306       ir->to->accept(this);
 307    printf(") (");
 308    if (ir->increment != NULL)
 309       ir->increment->accept(this);
 310    printf(") (\n");
 311    foreach_iter(exec_list_iterator, iter, ir->body_instructions) {
 312       ir_instruction *const inst = (ir_instruction *) iter.get();
 313
 314       inst->accept(this);
 315       printf("\n");
 316    }
 317    printf("))\n");
 318 }
 319
 320
 321 void
 322 ir_print_visitor::visit(ir_loop_jump *ir)
 323 {
 324    printf("%s", ir->is_break() ? "break" : "continue");
 325 }