src/mesa/drivers/dri/i965/brw_fs_validate.cpp

   1 /*
   2  * Copyright © 2015 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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /** @file brw_fs_validate.cpp
  25  *
  26  * Implements a pass that validates various invariants of the IR.  The current
  27  * pass only validates that GRF's uses are sane.  More can be added later.
  28  */
  29
  30 #include "brw_fs.h"
  31 #include "brw_cfg.h"
  32
  33 #define fsv_assert(cond) \
  34    if (!(cond)) { \
  35       fprintf(stderr, "ASSERT: Scalar %s validation failed!\n", stage_abbrev); \
  36       dump_instruction(inst, stderr); \
  37       fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, #cond); \
  38       abort(); \
  39    }
  40
  41 void
  42 fs_visitor::validate()
  43 {
  44    foreach_block_and_inst (block, fs_inst, inst, cfg) {
  45       if (inst->dst.file == VGRF) {
  46          fsv_assert(inst->dst.offset / REG_SIZE + regs_written(inst) <=
  47                     alloc.sizes[inst->dst.nr]);
  48       }
  49
  50       for (unsigned i = 0; i < inst->sources; i++) {
  51          if (inst->src[i].file == VGRF) {
  52             fsv_assert(inst->src[i].offset / REG_SIZE + regs_read(inst, i) <=
  53                        alloc.sizes[inst->src[i].nr]);
  54          }
  55       }
  56    }
  57 }