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      1 /*
      2  * Copyright 2010 Tom Stellard <tstellar (at) 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