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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.