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video_core: Implement basic compute shaders and more instructions

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raphaelthegreat 2024-05-29 01:28:34 +03:00
parent 10bceb1643
commit 58de7ff55a
58 changed files with 1234 additions and 293 deletions
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29
src/shader_recompiler/frontend/control_flow_graph.cpp
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@ -42,7 +42,7 @@ static IR::Condition MakeCondition(Opcode opcode) {
CFG::CFG(ObjectPool<Block>& block_pool_, std::span<const GcnInst> inst_list_)
: block_pool{block_pool_}, inst_list{inst_list_} {
index_to_pc.resize(inst_list.size());
index_to_pc.resize(inst_list.size() + 1);
EmitLabels();
EmitBlocks();
LinkBlocks();
@ -78,6 +78,7 @@ void CFG::EmitLabels() {
}
pc += inst.length;
}
index_to_pc[inst_list.size()] = pc;
// Sort labels to make sure block insertion is correct.
std::ranges::sort(labels);
@ -90,7 +91,7 @@ void CFG::EmitBlocks() {
}
const auto it_index = std::ranges::lower_bound(index_to_pc, label);
ASSERT(it_index != index_to_pc.end() || label > index_to_pc.back());
return std::distance(index_to_pc.begin(), std::prev(it_index));
return std::distance(index_to_pc.begin(), it_index);
};
for (auto it = labels.begin(); it != labels.end(); it++) {
@ -102,7 +103,7 @@ void CFG::EmitBlocks() {
return;
}
const Label end = *next_it;
const size_t end_index = get_index(end);
const size_t end_index = get_index(end) - 1;
const auto& end_inst = inst_list[end_index];
// Insert block between the labels using the last instruction
@ -146,9 +147,15 @@ void CFG::LinkBlocks() {
block.branch_true = get_block(target_pc);
block.branch_false = get_block(block.end);
block.end_class = EndClass::Branch;
} else if (end_inst.opcode == Opcode::S_ENDPGM) {
const auto& prev_inst = inst_list[block.end_index - 1];
if (prev_inst.opcode == Opcode::EXP && prev_inst.control.exp.en == 0) {
block.end_class = EndClass::Kill;
} else {
block.end_class = EndClass::Exit;
}
} else {
// Exit blocks don't link to anything.
block.end_class = EndClass::Exit;
UNREACHABLE();
}
}
}
@ -187,12 +194,12 @@ std::string CFG::Dot() const {
fmt::format("\t\tN{} [label=\"Exit\"][shape=square][style=stripped];\n", node_uid);
++node_uid;
break;
// case EndClass::Kill:
// dot += fmt::format("\t\t{}->N{};\n", name, node_uid);
// dot += fmt::format("\t\tN{} [label=\"Kill\"][shape=square][style=stripped];\n",
// node_uid);
// ++node_uid;
// break;
case EndClass::Kill:
dot += fmt::format("\t\t{}->N{};\n", name, node_uid);
dot +=
fmt::format("\t\tN{} [label=\"Kill\"][shape=square][style=stripped];\n", node_uid);
++node_uid;
break;
}
}
dot += "\t\tlabel = \"main\";\n\t}\n";