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1 /*
2  * Copyright 2010 Tom Stellard <tstellar@gmail.com>
3  *
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining
7  * a copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sublicense, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial
16  * portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  */
27 
28 #ifndef RADEON_EMULATE_LOOPS_H
29 #define RADEON_EMULATE_LOOPS_H
30 
31 #define MAX_ITERATIONS 8
32 
33 struct radeon_compiler;
34 
35 struct loop_info {
36 	struct rc_instruction * BeginLoop;
37 	struct rc_instruction * Cond;
38 	struct rc_instruction * If;
39 	struct rc_instruction * Brk;
40 	struct rc_instruction * EndIf;
41 	struct rc_instruction * EndLoop;
42 };
43 
44 struct emulate_loop_state {
45 	struct radeon_compiler * C;
46 	struct loop_info * Loops;
47 	unsigned int LoopCount;
48 	unsigned int LoopReserved;
49 };
50 
51 void rc_transform_loops(struct radeon_compiler *c, void *user);
52 
53 void rc_unroll_loops(struct radeon_compiler * c, void *user);
54 
55 void rc_emulate_loops(struct radeon_compiler * c, void *user);
56 
57 #endif /* RADEON_EMULATE_LOOPS_H */
58