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Merge pull request #2497 from lioncash/shader-ir 

shader/shader_ir: Minor changes
This commit is contained in:
Hexagon12 2019-05-19 15:51:06 +01:00 committed by GitHub
parent fadf66993c e310d943b8
commit 2aebbe9bf9
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 29 additions and 33 deletions
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7
src/video_core/shader/shader_ir.cpp
View File

@ -21,6 +21,13 @@ using Tegra::Shader::PredCondition;
using Tegra::Shader::PredOperation;
using Tegra::Shader::Register;
ShaderIR::ShaderIR(const ProgramCode& program_code, u32 main_offset)
: program_code{program_code}, main_offset{main_offset} {
Decode();
}
ShaderIR::~ShaderIR() = default;
Node ShaderIR::StoreNode(NodeData&& node_data) {
auto store = std::make_unique<NodeData>(node_data);
const Node node = store.get();

43
src/video_core/shader/shader_ir.h
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@ -328,40 +328,31 @@ struct MetaTexture {
u32 element{};
};
inline constexpr MetaArithmetic PRECISE = {true};
inline constexpr MetaArithmetic NO_PRECISE = {false};
constexpr MetaArithmetic PRECISE = {true};
constexpr MetaArithmetic NO_PRECISE = {false};
using Meta = std::variant<MetaArithmetic, MetaTexture, Tegra::Shader::HalfType>;
/// Holds any kind of operation that can be done in the IR
class OperationNode final {
public:
template <typename... T>
explicit constexpr OperationNode(OperationCode code) : code{code}, meta{} {}
explicit OperationNode(OperationCode code) : code{code} {}
explicit OperationNode(OperationCode code, Meta&& meta) : code{code}, meta{std::move(meta)} {}
template <typename... T>
explicit constexpr OperationNode(OperationCode code, Meta&& meta)
: code{code}, meta{std::move(meta)} {}
template <typename... T>
explicit constexpr OperationNode(OperationCode code, const T*... operands)
explicit OperationNode(OperationCode code, const T*... operands)
: OperationNode(code, {}, operands...) {}
template <typename... T>
explicit constexpr OperationNode(OperationCode code, Meta&& meta, const T*... operands_)
: code{code}, meta{std::move(meta)} {
auto operands_list = {operands_...};
for (auto& operand : operands_list) {
operands.push_back(operand);
}
}
explicit OperationNode(OperationCode code, Meta&& meta, const T*... operands_)
: code{code}, meta{std::move(meta)}, operands{operands_...} {}
explicit OperationNode(OperationCode code, Meta&& meta, std::vector<Node>&& operands)
: code{code}, meta{meta}, operands{std::move(operands)} {}
explicit OperationNode(OperationCode code, std::vector<Node>&& operands)
: code{code}, meta{}, operands{std::move(operands)} {}
: code{code}, operands{std::move(operands)} {}
OperationCode GetCode() const {
return code;
@ -567,11 +558,8 @@ private:
class ShaderIR final {
public:
explicit ShaderIR(const ProgramCode& program_code, u32 main_offset)
: program_code{program_code}, main_offset{main_offset} {
Decode();
}
explicit ShaderIR(const ProgramCode& program_code, u32 main_offset);
~ShaderIR();
const std::map<u32, NodeBlock>& GetBasicBlocks() const {
return basic_blocks;
@ -814,11 +802,12 @@ private:
void WriteLop3Instruction(NodeBlock& bb, Tegra::Shader::Register dest, Node op_a, Node op_b,
Node op_c, Node imm_lut, bool sets_cc);
Node TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor);
Node TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) const;
std::optional<u32> TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor);
std::optional<u32> TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor) const;
std::pair<Node, s64> TrackRegister(const GprNode* tracked, const NodeBlock& code, s64 cursor);
std::pair<Node, s64> TrackRegister(const GprNode* tracked, const NodeBlock& code,
s64 cursor) const;
std::tuple<Node, Node, GlobalMemoryBase> TrackAndGetGlobalMemory(NodeBlock& bb,
Node addr_register,
@ -835,12 +824,10 @@ private:
return StoreNode(OperationNode(code, std::move(meta), operands...));
}
template <typename... T>
Node Operation(OperationCode code, std::vector<Node>&& operands) {
return StoreNode(OperationNode(code, std::move(operands)));
}
template <typename... T>
Node Operation(OperationCode code, Meta&& meta, std::vector<Node>&& operands) {
return StoreNode(OperationNode(code, std::move(meta), std::move(operands)));
}

12
src/video_core/shader/track.cpp
View File

@ -17,22 +17,24 @@ std::pair<Node, s64> FindOperation(const NodeBlock& code, s64 cursor,
for (; cursor >= 0; --cursor) {
const Node node = code.at(cursor);
if (const auto operation = std::get_if<OperationNode>(node)) {
if (operation->GetCode() == operation_code)
if (operation->GetCode() == operation_code) {
return {node, cursor};
}
}
if (const auto conditional = std::get_if<ConditionalNode>(node)) {
const auto& conditional_code = conditional->GetCode();
const auto [found, internal_cursor] = FindOperation(
conditional_code, static_cast<s64>(conditional_code.size() - 1), operation_code);
if (found)
if (found) {
return {found, cursor};
}
}
}
return {};
}
} // namespace
Node ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) {
Node ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) const {
if (const auto cbuf = std::get_if<CbufNode>(tracked)) {
// Cbuf found, but it has to be immediate
return std::holds_alternative<ImmediateNode>(*cbuf->GetOffset()) ? tracked : nullptr;
@ -65,7 +67,7 @@ Node ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) {
return nullptr;
}
std::optional<u32> ShaderIR::TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor) {
std::optional<u32> ShaderIR::TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor) const {
// Reduce the cursor in one to avoid infinite loops when the instruction sets the same register
// that it uses as operand
const auto [found, found_cursor] =
@ -80,7 +82,7 @@ std::optional<u32> ShaderIR::TrackImmediate(Node tracked, const NodeBlock& code,
}
std::pair<Node, s64> ShaderIR::TrackRegister(const GprNode* tracked, const NodeBlock& code,
s64 cursor) {
s64 cursor) const {
for (; cursor >= 0; --cursor) {
const auto [found_node, new_cursor] = FindOperation(code, cursor, OperationCode::Assign);
if (!found_node) {