src/gallium/drivers/r600/sfn/sfn_instruction_cf.h

   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_IFELSEINSTRUCTION_H
  28 #define SFN_IFELSEINSTRUCTION_H
  29
  30 #include "sfn_instruction_alu.h"
  31
  32 namespace r600  {
  33
  34 class CFInstruction : public Instruction {
  35 protected:
  36    CFInstruction(instr_type type);
  37 };
  38
  39 class IfElseInstruction : public CFInstruction {
  40 public:
  41    IfElseInstruction(instr_type type);
  42 };
  43
  44 class IfInstruction : public IfElseInstruction {
  45 public:
  46    IfInstruction(AluInstruction *pred);
  47    const AluInstruction& pred() const {return *m_pred;}
  48 private:
  49    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  50    bool is_equal_to(const Instruction& lhs) const override;
  51    void do_print(std::ostream& os) const override;
  52    std::shared_ptr<AluInstruction> m_pred;
  53 };
  54
  55 class ElseInstruction : public IfElseInstruction {
  56 public:
  57    ElseInstruction(IfInstruction *jump_src);
  58 private:
  59    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  60    bool is_equal_to(const Instruction& lhs) const override;
  61    void do_print(std::ostream& os) const override;
  62
  63    IfElseInstruction *m_jump_src;
  64 };
  65
  66 class IfElseEndInstruction : public IfElseInstruction {
  67 public:
  68    IfElseEndInstruction();
  69 private:
  70    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  71    bool is_equal_to(const Instruction& lhs) const override;
  72    void do_print(std::ostream& os) const override;
  73 };
  74
  75 class LoopBeginInstruction: public CFInstruction {
  76 public:
  77    LoopBeginInstruction();
  78 private:
  79    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  80    bool is_equal_to(const Instruction& lhs) const override;
  81    void do_print(std::ostream& os) const override;
  82 };
  83
  84 class LoopEndInstruction: public CFInstruction {
  85 public:
  86    LoopEndInstruction(LoopBeginInstruction *start);
  87 private:
  88    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  89    bool is_equal_to(const Instruction& lhs) const override;
  90    void do_print(std::ostream& os) const override;
  91    LoopBeginInstruction *m_start;
  92 };
  93
  94 class LoopBreakInstruction: public CFInstruction {
  95 public:
  96    LoopBreakInstruction();
  97 private:
  98    void do_evalue_liveness(LiverangeEvaluator& eval) const override;
  99    bool is_equal_to(const Instruction& lhs) const override;
 100    void do_print(std::ostream& os) const override;
 101 };
 102
 103 class LoopContInstruction: public CFInstruction {
 104 public:
 105    LoopContInstruction();
 106 private:
 107    bool is_equal_to(const Instruction& lhs) const override;
 108    void do_print(std::ostream& os) const override;
 109 };
 110
 111 }
 112
 113 #endif // SFN_IFELSEINSTRUCTION_H