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
32namespace r600  {
33
34class CFInstruction : public Instruction {
35protected:
36   CFInstruction(instr_type type);
37};
38
39class IfElseInstruction : public CFInstruction {
40public:
41   IfElseInstruction(instr_type type);
42
43};
44
45class IfInstruction : public IfElseInstruction {
46public:
47   IfInstruction(AluInstruction *pred);
48   const AluInstruction& pred() const {return *m_pred;}
49
50   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
51   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
52
53private:
54   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
55   bool is_equal_to(const Instruction& lhs) const override;
56   void do_print(std::ostream& os) const override;
57   std::shared_ptr<AluInstruction> m_pred;
58};
59
60class ElseInstruction : public IfElseInstruction {
61public:
62   ElseInstruction(IfInstruction *jump_src);
63
64   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
65   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
66
67private:
68   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
69   bool is_equal_to(const Instruction& lhs) const override;
70   void do_print(std::ostream& os) const override;
71
72   IfElseInstruction *m_jump_src;
73};
74
75class IfElseEndInstruction : public IfElseInstruction {
76public:
77   IfElseEndInstruction();
78
79   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
80   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
81
82private:
83   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
84   bool is_equal_to(const Instruction& lhs) const override;
85   void do_print(std::ostream& os) const override;
86};
87
88class LoopBeginInstruction: public CFInstruction {
89public:
90   LoopBeginInstruction();
91
92   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
93   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
94
95private:
96   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
97   bool is_equal_to(const Instruction& lhs) const override;
98   void do_print(std::ostream& os) const override;
99};
100
101class LoopEndInstruction: public CFInstruction {
102public:
103   LoopEndInstruction(LoopBeginInstruction *start);
104
105   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
106   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
107
108private:
109   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
110   bool is_equal_to(const Instruction& lhs) const override;
111   void do_print(std::ostream& os) const override;
112   LoopBeginInstruction *m_start;
113};
114
115class LoopBreakInstruction: public CFInstruction {
116public:
117   LoopBreakInstruction();
118
119   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
120   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
121
122private:
123   void do_evalue_liveness(LiverangeEvaluator& eval) const override;
124   bool is_equal_to(const Instruction& lhs) const override;
125   void do_print(std::ostream& os) const override;
126};
127
128class LoopContInstruction: public CFInstruction {
129public:
130   LoopContInstruction();
131
132   bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
133   bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
134
135private:
136   bool is_equal_to(const Instruction& lhs) const override;
137   void do_print(std::ostream& os) const override;
138};
139
140}
141
142#endif // SFN_IFELSEINSTRUCTION_H
143