src/gallium/drivers/r300/compiler/radeon_emulate_loops.h

   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 */