1/*
2 * Copyright © 2012 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 * Authors:
24 *    Eric Anholt <eric@anholt.net>
25 *
26 */
27
28#include "brw_fs.h"
29
30class fs_bblock_link : public exec_node {
31public:
32   fs_bblock_link(fs_bblock *block)
33      : block(block)
34   {
35   }
36
37   fs_bblock *block;
38};
39
40class fs_bblock {
41public:
42   static void* operator new(size_t size, void *ctx)
43   {
44      void *node;
45
46      node = rzalloc_size(ctx, size);
47      assert(node != NULL);
48
49      return node;
50   }
51
52   fs_bblock_link *make_list(void *mem_ctx);
53
54   fs_bblock();
55
56   void add_successor(void *mem_ctx, fs_bblock *successor);
57
58   fs_inst *start;
59   fs_inst *end;
60
61   int start_ip;
62   int end_ip;
63
64   exec_list parents;
65   exec_list children;
66   int block_num;
67};
68
69class fs_cfg {
70public:
71   static void* operator new(size_t size, void *ctx)
72   {
73      void *node;
74
75      node = rzalloc_size(ctx, size);
76      assert(node != NULL);
77
78      return node;
79   }
80
81   fs_cfg(fs_visitor *v);
82   ~fs_cfg();
83   fs_bblock *new_block();
84   void set_next_block(fs_bblock *block);
85   void make_block_array();
86
87   /** @{
88    *
89    * Used while generating the block list.
90    */
91   fs_bblock *cur;
92   int ip;
93   /** @} */
94
95   void *mem_ctx;
96
97   /** Ordered list (by ip) of basic blocks */
98   exec_list block_list;
99   fs_bblock **blocks;
100   int num_blocks;
101};
102