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 
28 #ifndef sfn_instruction_block_h
29 #define sfn_instruction_block_h
30 
31 #include "sfn_instruction_base.h"
32 
33 namespace r600 {
34 
35 class InstructionBlock : public Instruction
36 {
37 public:
38 	InstructionBlock(unsigned nesting_depth, unsigned block_number);
39 
40         void emit(PInstruction instr);
41 
42 
begin()43         std::vector<PInstruction>::const_iterator begin() const  {
44            return m_block.begin();
45         }
end()46         std::vector<PInstruction>::const_iterator end() const {
47            return m_block.end();
48         }
49 
50         void remap_registers(ValueRemapper& map);
51 
size()52         size_t size() const {
53            return m_block.size();
54         }
55 
56         const PInstruction& operator [] (int i) const {
57            return m_block[i];
58         }
59 
number()60         unsigned number() const  {
61            return m_block_number;
62         }
63 
64         PInstruction last_instruction();
65 
accept(InstructionVisitor & visitor)66         bool accept(InstructionVisitor& visitor) override {return visitor.visit(*this);}
accept(ConstInstructionVisitor & visitor)67         bool accept(ConstInstructionVisitor& visitor) const override {return visitor.visit(*this);}
68 
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         std::vector<PInstruction> m_block;
75 
76         unsigned m_block_number;
77         unsigned m_nesting_depth;
78 };
79 
80 }
81 
82 #endif // INSTRUCTIONBLOCK_H
83