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https://github.com/yuzu-mirror/yuzu.git
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shader_ir: Separate float-point comparisons in ordered and unordered
This allows us to use native SPIR-V instructions without having to manually check for NAN.
This commit is contained in:
ReinUsesLisp
parent
1121960f0e
commit
4e57f9d5cf
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@ -168,18 +168,22 @@ enum class Pred : u64 {
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};
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enum class PredCondition : u64 {
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LessThan = 1,
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Equal = 2,
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LessEqual = 3,
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GreaterThan = 4,
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NotEqual = 5,
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GreaterEqual = 6,
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LessThanWithNan = 9,
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LessEqualWithNan = 11,
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GreaterThanWithNan = 12,
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NotEqualWithNan = 13,
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GreaterEqualWithNan = 14,
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// TODO(Subv): Other condition types
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F = 0, // Always false
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LT = 1, // Ordered less than
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EQ = 2, // Ordered equal
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LE = 3, // Ordered less than or equal
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GT = 4, // Ordered greater than
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NE = 5, // Ordered not equal
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GE = 6, // Ordered greater than or equal
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NUM = 7, // Ordered
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NAN_ = 8, // Unordered
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LTU = 9, // Unordered less than
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EQU = 10, // Unordered equal
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LEU = 11, // Unordered less than or equal
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GTU = 12, // Unordered greater than
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NEU = 13, // Unordered not equal
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GEU = 14, // Unordered greater than or equal
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T = 15, // Always true
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};
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enum class PredOperation : u64 {
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@ -1840,34 +1840,31 @@ private:
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Type::HalfFloat};
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}
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template <Type type>
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Expression LogicalLessThan(Operation operation) {
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return GenerateBinaryInfix(operation, "<", Type::Bool, type, type);
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template <const std::string_view& op, Type type, bool unordered = false>
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Expression Comparison(Operation operation) {
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static_assert(!unordered || type == Type::Float);
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const Expression expr = GenerateBinaryInfix(operation, op, Type::Bool, type, type);
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if constexpr (!unordered) {
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return expr;
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}
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// Unordered comparisons are always true for NaN operands.
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return {fmt::format("({} || isnan({}) || isnan({}))", expr.AsBool(),
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VisitOperand(operation, 0).AsFloat(),
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VisitOperand(operation, 1).AsFloat()),
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Type::Bool};
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}
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template <Type type>
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Expression LogicalEqual(Operation operation) {
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return GenerateBinaryInfix(operation, "==", Type::Bool, type, type);
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Expression FOrdered(Operation operation) {
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return {fmt::format("(!isnan({}) && !isnan({}))", VisitOperand(operation, 0).AsFloat(),
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VisitOperand(operation, 1).AsFloat()),
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Type::Bool};
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}
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template <Type type>
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Expression LogicalLessEqual(Operation operation) {
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return GenerateBinaryInfix(operation, "<=", Type::Bool, type, type);
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}
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template <Type type>
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Expression LogicalGreaterThan(Operation operation) {
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return GenerateBinaryInfix(operation, ">", Type::Bool, type, type);
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}
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template <Type type>
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Expression LogicalNotEqual(Operation operation) {
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return GenerateBinaryInfix(operation, "!=", Type::Bool, type, type);
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}
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template <Type type>
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Expression LogicalGreaterEqual(Operation operation) {
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return GenerateBinaryInfix(operation, ">=", Type::Bool, type, type);
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Expression FUnordered(Operation operation) {
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return {fmt::format("(isnan({}) || isnan({}))", VisitOperand(operation, 0).AsFloat(),
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VisitOperand(operation, 1).AsFloat()),
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Type::Bool};
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}
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Expression LogicalAddCarry(Operation operation) {
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@ -2324,6 +2321,13 @@ private:
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Func() = delete;
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~Func() = delete;
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static constexpr std::string_view LessThan = "<";
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static constexpr std::string_view Equal = "==";
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static constexpr std::string_view LessEqual = "<=";
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static constexpr std::string_view GreaterThan = ">";
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static constexpr std::string_view NotEqual = "!=";
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static constexpr std::string_view GreaterEqual = ">=";
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static constexpr std::string_view Add = "Add";
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static constexpr std::string_view Min = "Min";
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static constexpr std::string_view Max = "Max";
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@ -2425,27 +2429,34 @@ private:
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&GLSLDecompiler::LogicalPick2,
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&GLSLDecompiler::LogicalAnd2,
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&GLSLDecompiler::LogicalLessThan<Type::Float>,
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&GLSLDecompiler::LogicalEqual<Type::Float>,
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&GLSLDecompiler::LogicalLessEqual<Type::Float>,
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&GLSLDecompiler::LogicalGreaterThan<Type::Float>,
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&GLSLDecompiler::LogicalNotEqual<Type::Float>,
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&GLSLDecompiler::LogicalGreaterEqual<Type::Float>,
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&GLSLDecompiler::LogicalFIsNan,
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&GLSLDecompiler::Comparison<Func::LessThan, Type::Float, false>,
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&GLSLDecompiler::Comparison<Func::Equal, Type::Float, false>,
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&GLSLDecompiler::Comparison<Func::LessEqual, Type::Float, false>,
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&GLSLDecompiler::Comparison<Func::GreaterThan, Type::Float, false>,
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&GLSLDecompiler::Comparison<Func::NotEqual, Type::Float, false>,
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&GLSLDecompiler::Comparison<Func::GreaterEqual, Type::Float, false>,
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&GLSLDecompiler::FOrdered,
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&GLSLDecompiler::FUnordered,
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&GLSLDecompiler::Comparison<Func::LessThan, Type::Float, true>,
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&GLSLDecompiler::Comparison<Func::Equal, Type::Float, true>,
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&GLSLDecompiler::Comparison<Func::LessEqual, Type::Float, true>,
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&GLSLDecompiler::Comparison<Func::GreaterThan, Type::Float, true>,
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&GLSLDecompiler::Comparison<Func::NotEqual, Type::Float, true>,
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&GLSLDecompiler::Comparison<Func::GreaterEqual, Type::Float, true>,
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&GLSLDecompiler::LogicalLessThan<Type::Int>,
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&GLSLDecompiler::LogicalEqual<Type::Int>,
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&GLSLDecompiler::LogicalLessEqual<Type::Int>,
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&GLSLDecompiler::LogicalGreaterThan<Type::Int>,
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&GLSLDecompiler::LogicalNotEqual<Type::Int>,
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&GLSLDecompiler::LogicalGreaterEqual<Type::Int>,
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&GLSLDecompiler::Comparison<Func::LessThan, Type::Int>,
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&GLSLDecompiler::Comparison<Func::Equal, Type::Int>,
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&GLSLDecompiler::Comparison<Func::LessEqual, Type::Int>,
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&GLSLDecompiler::Comparison<Func::GreaterThan, Type::Int>,
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&GLSLDecompiler::Comparison<Func::NotEqual, Type::Int>,
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&GLSLDecompiler::Comparison<Func::GreaterEqual, Type::Int>,
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&GLSLDecompiler::LogicalLessThan<Type::Uint>,
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&GLSLDecompiler::LogicalEqual<Type::Uint>,
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&GLSLDecompiler::LogicalLessEqual<Type::Uint>,
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&GLSLDecompiler::LogicalGreaterThan<Type::Uint>,
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&GLSLDecompiler::LogicalNotEqual<Type::Uint>,
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&GLSLDecompiler::LogicalGreaterEqual<Type::Uint>,
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&GLSLDecompiler::Comparison<Func::LessThan, Type::Uint>,
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&GLSLDecompiler::Comparison<Func::Equal, Type::Uint>,
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&GLSLDecompiler::Comparison<Func::LessEqual, Type::Uint>,
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&GLSLDecompiler::Comparison<Func::GreaterThan, Type::Uint>,
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&GLSLDecompiler::Comparison<Func::NotEqual, Type::Uint>,
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&GLSLDecompiler::Comparison<Func::GreaterEqual, Type::Uint>,
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&GLSLDecompiler::LogicalAddCarry,
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@ -1618,6 +1618,24 @@ private:
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return {};
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}
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Expression LogicalFOrdered(Operation operation) {
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// Emulate SPIR-V's OpOrdered
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const Id op_a = AsFloat(Visit(operation[0]));
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const Id op_b = AsFloat(Visit(operation[1]));
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const Id is_num_a = OpFOrdEqual(t_bool, op_a, op_a);
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const Id is_num_b = OpFOrdEqual(t_bool, op_b, op_b);
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return {OpLogicalAnd(t_bool, is_num_a, is_num_b), Type::Bool};
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}
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Expression LogicalFUnordered(Operation operation) {
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// Emulate SPIR-V's OpUnordered
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const Id op_a = AsFloat(Visit(operation[0]));
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const Id op_b = AsFloat(Visit(operation[1]));
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const Id is_nan_a = OpIsNan(t_bool, op_a);
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const Id is_nan_b = OpIsNan(t_bool, op_b);
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return {OpLogicalOr(t_bool, is_nan_a, is_nan_b), Type::Bool};
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}
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Id GetTextureSampler(Operation operation) {
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const auto& meta = std::get<MetaTexture>(operation.GetMeta());
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ASSERT(!meta.sampler.is_buffer);
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@ -2511,7 +2529,14 @@ private:
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&SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThan, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFOrdNotEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFOrdGreaterThanEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Unary<&Module::OpIsNan, Type::Bool, Type::Float>,
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&SPIRVDecompiler::LogicalFOrdered,
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&SPIRVDecompiler::LogicalFUnordered,
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&SPIRVDecompiler::Binary<&Module::OpFUnordLessThan, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFUnordEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFUnordLessThanEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFUnordGreaterThan, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFUnordNotEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpFUnordGreaterThanEqual, Type::Bool, Type::Float>,
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&SPIRVDecompiler::Binary<&Module::OpSLessThan, Type::Bool, Type::Int>,
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&SPIRVDecompiler::Binary<&Module::OpIEqual, Type::Bool, Type::Int>,
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@ -255,7 +255,7 @@ void ShaderIR::InsertControlFlow(NodeBlock& bb, const ShaderBlock& block) {
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Node n = Operation(OperationCode::Branch, Immediate(branch_case.address));
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Node op_b = Immediate(branch_case.cmp_value);
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Node condition =
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GetPredicateComparisonInteger(Tegra::Shader::PredCondition::Equal, false, op_a, op_b);
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GetPredicateComparisonInteger(Tegra::Shader::PredCondition::EQ, false, op_a, op_b);
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auto result = Conditional(condition, {n});
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bb.push_back(result);
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global_code.push_back(result);
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@ -97,19 +97,19 @@ u32 ShaderIR::DecodeXmad(NodeBlock& bb, u32 pc) {
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return SignedOperation(OperationCode::IAdd, is_signed_c, original_c, shifted_b);
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}
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case Tegra::Shader::XmadMode::CSfu: {
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const Node comp_a = GetPredicateComparisonInteger(PredCondition::Equal, is_signed_a,
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op_a, Immediate(0));
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const Node comp_b = GetPredicateComparisonInteger(PredCondition::Equal, is_signed_b,
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op_b, Immediate(0));
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const Node comp_a =
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GetPredicateComparisonInteger(PredCondition::EQ, is_signed_a, op_a, Immediate(0));
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const Node comp_b =
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GetPredicateComparisonInteger(PredCondition::EQ, is_signed_b, op_b, Immediate(0));
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const Node comp = Operation(OperationCode::LogicalOr, comp_a, comp_b);
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const Node comp_minus_a = GetPredicateComparisonInteger(
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PredCondition::NotEqual, is_signed_a,
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PredCondition::NE, is_signed_a,
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SignedOperation(OperationCode::IBitwiseAnd, is_signed_a, op_a,
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Immediate(0x80000000)),
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Immediate(0));
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const Node comp_minus_b = GetPredicateComparisonInteger(
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PredCondition::NotEqual, is_signed_b,
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PredCondition::NE, is_signed_b,
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SignedOperation(OperationCode::IBitwiseAnd, is_signed_b, op_b,
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Immediate(0x80000000)),
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Immediate(0));
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@ -110,13 +110,20 @@ enum class OperationCode {
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LogicalPick2, /// (bool2 pair, uint index) -> bool
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LogicalAnd2, /// (bool2 a) -> bool
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LogicalFLessThan, /// (float a, float b) -> bool
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LogicalFEqual, /// (float a, float b) -> bool
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LogicalFLessEqual, /// (float a, float b) -> bool
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LogicalFGreaterThan, /// (float a, float b) -> bool
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LogicalFNotEqual, /// (float a, float b) -> bool
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LogicalFGreaterEqual, /// (float a, float b) -> bool
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LogicalFIsNan, /// (float a) -> bool
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LogicalFOrdLessThan, /// (float a, float b) -> bool
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LogicalFOrdEqual, /// (float a, float b) -> bool
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LogicalFOrdLessEqual, /// (float a, float b) -> bool
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LogicalFOrdGreaterThan, /// (float a, float b) -> bool
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LogicalFOrdNotEqual, /// (float a, float b) -> bool
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LogicalFOrdGreaterEqual, /// (float a, float b) -> bool
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LogicalFOrdered, /// (float a, float b) -> bool
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LogicalFUnordered, /// (float a, float b) -> bool
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LogicalFUnordLessThan, /// (float a, float b) -> bool
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LogicalFUnordEqual, /// (float a, float b) -> bool
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LogicalFUnordLessEqual, /// (float a, float b) -> bool
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LogicalFUnordGreaterThan, /// (float a, float b) -> bool
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LogicalFUnordNotEqual, /// (float a, float b) -> bool
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LogicalFUnordGreaterEqual, /// (float a, float b) -> bool
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LogicalILessThan, /// (int a, int b) -> bool
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LogicalIEqual, /// (int a, int b) -> bool
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@ -10,6 +10,7 @@
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "video_core/engines/shader_bytecode.h"
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#include "video_core/shader/node.h"
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#include "video_core/shader/node_helper.h"
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#include "video_core/shader/registry.h"
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#include "video_core/shader/shader_ir.h"
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@ -243,56 +244,44 @@ Node ShaderIR::GetSaturatedHalfFloat(Node value, bool saturate) {
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}
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Node ShaderIR::GetPredicateComparisonFloat(PredCondition condition, Node op_a, Node op_b) {
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static constexpr std::array comparison_table{
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std::pair{PredCondition::LessThan, OperationCode::LogicalFLessThan},
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std::pair{PredCondition::Equal, OperationCode::LogicalFEqual},
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std::pair{PredCondition::LessEqual, OperationCode::LogicalFLessEqual},
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std::pair{PredCondition::GreaterThan, OperationCode::LogicalFGreaterThan},
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std::pair{PredCondition::NotEqual, OperationCode::LogicalFNotEqual},
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std::pair{PredCondition::GreaterEqual, OperationCode::LogicalFGreaterEqual},
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std::pair{PredCondition::LessThanWithNan, OperationCode::LogicalFLessThan},
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std::pair{PredCondition::NotEqualWithNan, OperationCode::LogicalFNotEqual},
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std::pair{PredCondition::LessEqualWithNan, OperationCode::LogicalFLessEqual},
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std::pair{PredCondition::GreaterThanWithNan, OperationCode::LogicalFGreaterThan},
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std::pair{PredCondition::GreaterEqualWithNan, OperationCode::LogicalFGreaterEqual},
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};
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const auto comparison =
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std::find_if(comparison_table.cbegin(), comparison_table.cend(),
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[condition](const auto entry) { return condition == entry.first; });
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UNIMPLEMENTED_IF_MSG(comparison == comparison_table.cend(),
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"Unknown predicate comparison operation");
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Node predicate = Operation(comparison->second, NO_PRECISE, op_a, op_b);
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if (condition == PredCondition::LessThanWithNan ||
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condition == PredCondition::NotEqualWithNan ||
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condition == PredCondition::LessEqualWithNan ||
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condition == PredCondition::GreaterThanWithNan ||
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condition == PredCondition::GreaterEqualWithNan) {
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predicate = Operation(OperationCode::LogicalOr, predicate,
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Operation(OperationCode::LogicalFIsNan, op_a));
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predicate = Operation(OperationCode::LogicalOr, predicate,
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Operation(OperationCode::LogicalFIsNan, op_b));
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if (condition == PredCondition::T) {
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return GetPredicate(true);
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} else if (condition == PredCondition::F) {
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return GetPredicate(false);
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}
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return predicate;
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static constexpr std::array comparison_table{
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OperationCode(0),
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OperationCode::LogicalFOrdLessThan, // LT
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OperationCode::LogicalFOrdEqual, // EQ
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OperationCode::LogicalFOrdLessEqual, // LE
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OperationCode::LogicalFOrdGreaterThan, // GT
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OperationCode::LogicalFOrdNotEqual, // NE
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OperationCode::LogicalFOrdGreaterEqual, // GE
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OperationCode::LogicalFOrdered, // NUM
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OperationCode::LogicalFUnordered, // NAN
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OperationCode::LogicalFUnordLessThan, // LTU
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OperationCode::LogicalFUnordEqual, // EQU
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OperationCode::LogicalFUnordLessEqual, // LEU
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OperationCode::LogicalFUnordGreaterThan, // GTU
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OperationCode::LogicalFUnordNotEqual, // NEU
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OperationCode::LogicalFUnordGreaterEqual, // GEU
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};
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const std::size_t index = static_cast<std::size_t>(condition);
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ASSERT_MSG(index < std::size(comparison_table), "Invalid condition={}", index);
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return Operation(comparison_table[index], op_a, op_b);
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}
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Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_signed, Node op_a,
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Node op_b) {
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static constexpr std::array comparison_table{
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std::pair{PredCondition::LessThan, OperationCode::LogicalILessThan},
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std::pair{PredCondition::Equal, OperationCode::LogicalIEqual},
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std::pair{PredCondition::LessEqual, OperationCode::LogicalILessEqual},
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std::pair{PredCondition::GreaterThan, OperationCode::LogicalIGreaterThan},
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std::pair{PredCondition::NotEqual, OperationCode::LogicalINotEqual},
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std::pair{PredCondition::GreaterEqual, OperationCode::LogicalIGreaterEqual},
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std::pair{PredCondition::LessThanWithNan, OperationCode::LogicalILessThan},
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std::pair{PredCondition::NotEqualWithNan, OperationCode::LogicalINotEqual},
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std::pair{PredCondition::LessEqualWithNan, OperationCode::LogicalILessEqual},
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std::pair{PredCondition::GreaterThanWithNan, OperationCode::LogicalIGreaterThan},
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std::pair{PredCondition::GreaterEqualWithNan, OperationCode::LogicalIGreaterEqual},
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std::pair{PredCondition::LT, OperationCode::LogicalILessThan},
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std::pair{PredCondition::EQ, OperationCode::LogicalIEqual},
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std::pair{PredCondition::LE, OperationCode::LogicalILessEqual},
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std::pair{PredCondition::GT, OperationCode::LogicalIGreaterThan},
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std::pair{PredCondition::NE, OperationCode::LogicalINotEqual},
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std::pair{PredCondition::GE, OperationCode::LogicalIGreaterEqual},
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};
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const auto comparison =
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@ -301,32 +290,24 @@ Node ShaderIR::GetPredicateComparisonInteger(PredCondition condition, bool is_si
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UNIMPLEMENTED_IF_MSG(comparison == comparison_table.cend(),
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"Unknown predicate comparison operation");
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Node predicate = SignedOperation(comparison->second, is_signed, NO_PRECISE, std::move(op_a),
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std::move(op_b));
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UNIMPLEMENTED_IF_MSG(condition == PredCondition::LessThanWithNan ||
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condition == PredCondition::NotEqualWithNan ||
|
||||
condition == PredCondition::LessEqualWithNan ||
|
||||
condition == PredCondition::GreaterThanWithNan ||
|
||||
condition == PredCondition::GreaterEqualWithNan,
|
||||
"NaN comparisons for integers are not implemented");
|
||||
return predicate;
|
||||
return SignedOperation(comparison->second, is_signed, NO_PRECISE, std::move(op_a),
|
||||
std::move(op_b));
|
||||
}
|
||||
|
||||
Node ShaderIR::GetPredicateComparisonHalf(Tegra::Shader::PredCondition condition, Node op_a,
|
||||
Node op_b) {
|
||||
static constexpr std::array comparison_table{
|
||||
std::pair{PredCondition::LessThan, OperationCode::Logical2HLessThan},
|
||||
std::pair{PredCondition::Equal, OperationCode::Logical2HEqual},
|
||||
std::pair{PredCondition::LessEqual, OperationCode::Logical2HLessEqual},
|
||||
std::pair{PredCondition::GreaterThan, OperationCode::Logical2HGreaterThan},
|
||||
std::pair{PredCondition::NotEqual, OperationCode::Logical2HNotEqual},
|
||||
std::pair{PredCondition::GreaterEqual, OperationCode::Logical2HGreaterEqual},
|
||||
std::pair{PredCondition::LessThanWithNan, OperationCode::Logical2HLessThanWithNan},
|
||||
std::pair{PredCondition::NotEqualWithNan, OperationCode::Logical2HNotEqualWithNan},
|
||||
std::pair{PredCondition::LessEqualWithNan, OperationCode::Logical2HLessEqualWithNan},
|
||||
std::pair{PredCondition::GreaterThanWithNan, OperationCode::Logical2HGreaterThanWithNan},
|
||||
std::pair{PredCondition::GreaterEqualWithNan, OperationCode::Logical2HGreaterEqualWithNan},
|
||||
std::pair{PredCondition::LT, OperationCode::Logical2HLessThan},
|
||||
std::pair{PredCondition::EQ, OperationCode::Logical2HEqual},
|
||||
std::pair{PredCondition::LE, OperationCode::Logical2HLessEqual},
|
||||
std::pair{PredCondition::GT, OperationCode::Logical2HGreaterThan},
|
||||
std::pair{PredCondition::NE, OperationCode::Logical2HNotEqual},
|
||||
std::pair{PredCondition::GE, OperationCode::Logical2HGreaterEqual},
|
||||
std::pair{PredCondition::LTU, OperationCode::Logical2HLessThanWithNan},
|
||||
std::pair{PredCondition::LEU, OperationCode::Logical2HLessEqualWithNan},
|
||||
std::pair{PredCondition::GTU, OperationCode::Logical2HGreaterThanWithNan},
|
||||
std::pair{PredCondition::NEU, OperationCode::Logical2HNotEqualWithNan},
|
||||
std::pair{PredCondition::GEU, OperationCode::Logical2HGreaterEqualWithNan},
|
||||
};
|
||||
|
||||
const auto comparison =
|
||||
|
|
@ -397,7 +378,7 @@ void ShaderIR::SetInternalFlagsFromFloat(NodeBlock& bb, Node value, bool sets_cc
|
|||
if (!sets_cc) {
|
||||
return;
|
||||
}
|
||||
Node zerop = Operation(OperationCode::LogicalFEqual, std::move(value), Immediate(0.0f));
|
||||
Node zerop = Operation(OperationCode::LogicalFOrdEqual, std::move(value), Immediate(0.0f));
|
||||
SetInternalFlag(bb, InternalFlag::Zero, std::move(zerop));
|
||||
LOG_WARNING(HW_GPU, "Condition codes implementation is incomplete");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue