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
validate()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 }
58