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Member "mesa-20.1.8/src/gallium/drivers/r600/sfn/sfn_conditionaljumptracker.h" (16 Sep 2020, 2076 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /* -*- mesa-c++  -*-
    2  *
    3  * Copyright (c) 2018-2019 Collabora LTD
    4  *
    5  * Author: Gert Wollny <gert.wollny@collabora.com>
    6  *
    7  * Permission is hereby granted, free of charge, to any person obtaining a
    8  * copy of this software and associated documentation files (the "Software"),
    9  * to deal in the Software without restriction, including without limitation
   10  * on the rights to use, copy, modify, merge, publish, distribute, sub
   11  * license, and/or sell copies of the Software, and to permit persons to whom
   12  * the Software is furnished to do so, subject to the following conditions:
   13  *
   14  * The above copyright notice and this permission notice (including the next
   15  * paragraph) shall be included in all copies or substantial portions of the
   16  * Software.
   17  *
   18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
   21  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
   22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
   23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
   24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
   25  */
   26 
   27 #ifndef SFN_CONDITIONALJUMPTRACKER_H
   28 #define SFN_CONDITIONALJUMPTRACKER_H
   29 
   30 #include "gallium/drivers/r600/r600_asm.h"
   31 
   32 namespace r600 {
   33 
   34 enum JumpType {
   35    jt_loop,
   36    jt_if
   37 };
   38 
   39 /**
   40   Class to link the jump locations
   41 
   42 */
   43 
   44 
   45 class ConditionalJumpTracker
   46 {
   47 public:
   48    ConditionalJumpTracker();
   49    ~ConditionalJumpTracker();
   50 
   51    /* Mark the start of a loop or a if/else */
   52 
   53    void push(r600_bytecode_cf *start, JumpType type);
   54 
   55    /* Mark the end of a loop or a if/else and fixup the jump sites */
   56    bool pop(r600_bytecode_cf *final, JumpType type);
   57 
   58    /* Add middle sites to the call frame i.e. continue,
   59     * break inside loops, and else in if-then-else constructs.
   60     */
   61    bool add_mid(r600_bytecode_cf *source, JumpType type);
   62 
   63 private:
   64    struct ConditionalJumpTrackerImpl * impl;
   65 };
   66 
   67 }
   68 
   69 #endif // SFN_CONDITIONALJUMPTRACKER_H