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shader/shader_ir: Mark tracking functions as const member functions

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These don't actually modify instance state, so they can be marked as
const member functions
This commit is contained in:
Lioncash 2019-05-19 04:10:32 -04:00
parent ce04ab38bb
commit e09ee0ff23
2 changed files with 11 additions and 8 deletions
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7
src/video_core/shader/shader_ir.h
View file

@ -811,11 +811,12 @@ private:
void WriteLop3Instruction(NodeBlock& bb, Tegra::Shader::Register dest, Node op_a, Node op_b, void WriteLop3Instruction(NodeBlock& bb, Tegra::Shader::Register dest, Node op_a, Node op_b,
Node op_c, Node imm_lut, bool sets_cc); 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, std::tuple<Node, Node, GlobalMemoryBase> TrackAndGetGlobalMemory(NodeBlock& bb,
Node addr_register, Node addr_register,

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