blob: f35c6478acfe3e1f96f14dcda4ddc79f21504081 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <ranges>
#include <tuple>
#include <type_traits>
#include "common/bit_cast.h"
#include "common/bit_util.h"
#include "shader_recompiler/exception.h"
#include "shader_recompiler/frontend/ir/ir_emitter.h"
#include "shader_recompiler/ir_opt/passes.h"
namespace Shader::Optimization {
void VertexATransformPass(IR::Program& program) {
bool replaced_join{};
bool eliminated_epilogue{};
for (IR::Block* const block : program.post_order_blocks) {
for (IR::Inst& inst : block->Instructions()) {
switch (inst.GetOpcode()) {
case IR::Opcode::Return:
inst.ReplaceOpcode(IR::Opcode::Join);
replaced_join = true;
break;
case IR::Opcode::Epilogue:
inst.Invalidate();
eliminated_epilogue = true;
break;
default:
break;
}
if (replaced_join && eliminated_epilogue) {
return;
}
}
}
}
void VertexBTransformPass(IR::Program& program) {
for (IR::Block* const block : program.post_order_blocks | std::views::reverse) {
for (IR::Inst& inst : block->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::Prologue) {
return inst.Invalidate();
}
}
}
}
void DualVertexJoinPass(IR::Program& program) {
const auto& blocks = program.blocks;
s64 s = static_cast<s64>(blocks.size()) - 1;
if (s < 1) {
throw NotImplementedException("Dual Vertex Join pass failed, expected atleast 2 blocks!");
}
for (s64 index = 0; index < s; index++) {
IR::Block* const current_block = blocks[index];
IR::Block* const next_block = blocks[index + 1];
for (IR::Inst& inst : current_block->Instructions()) {
if (inst.GetOpcode() == IR::Opcode::Join) {
IR::IREmitter ir{*current_block, IR::Block::InstructionList::s_iterator_to(inst)};
ir.Branch(next_block);
inst.Invalidate();
// only 1 join should exist
return;
}
}
}
throw NotImplementedException("Dual Vertex Join pass failed, no join present!");
}
} // namespace Shader::Optimization
|
