New shader translator implementation (#654)

* Start implementing a new shader translator

* Fix shift instructions and a typo

* Small refactoring on StructuredProgram, move RemovePhis method to a separate class

* Initial geometry shader support

* Implement TLD4

* Fix -- There's no negation on FMUL32I

* Add constant folding and algebraic simplification optimizations, nits

* Some leftovers from constant folding

* Avoid cast for constant assignments

* Add a branch elimination pass, and misc small fixes

* Remove redundant branches, add expression propagation and other improvements on the code

* Small leftovers -- add missing break and continue, remove unused properties, other improvements

* Add null check to handle empty block cases on block visitor

* Add HADD2 and HMUL2 half float shader instructions

* Optimize pack/unpack sequences, some fixes related to half float instructions

* Add TXQ, TLD, TLDS and TLD4S shader texture instructions, and some support for bindless textures, some refactoring on codegen

* Fix copy paste mistake that caused RZ to be ignored on the AST instruction

* Add workaround for conditional exit, and fix half float instruction with constant buffer

* Add missing 0.0 source for TLDS.LZ variants

* Simplify the switch for TLDS.LZ

* Texture instructions related fixes

* Implement the HFMA instruction, and some misc. fixes

* Enable constant folding on UnpackHalf2x16 instructions

* Refactor HFMA to use OpCode* for opcode decoding rather than on the helper methods

* Remove the old shader translator

* Remove ShaderDeclInfo and other unused things

* Add dual vertex shader support

* Add ShaderConfig, used to pass shader type and maximum cbuffer size

* Move and rename some instruction enums

* Move texture instructions into a separate file

* Move operand GetExpression and locals management to OperandManager

* Optimize opcode decoding using a simple list and binary search

* Add missing condition for do-while on goto elimination

* Misc. fixes on texture instructions

* Simplify TLDS switch

* Address PR feedback, and a nit

1 files changed, 87 insertions, 0 deletions

diff --git a/Ryujinx.Graphics/Shader/IntermediateRepresentation/Instruction.cs b/Ryujinx.Graphics/Shader/IntermediateRepresentation/Instruction.cs
new file mode 100644
index 00000000..ac0ebc2b
--- /dev/null
+++ b/Ryujinx.Graphics/Shader/IntermediateRepresentation/Instruction.cs
@@ -0,0 +1,87 @@
+using System;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    [Flags]
+    enum Instruction
+    {
+        Absolute = 1,
+        Add,
+        BitfieldExtractS32,
+        BitfieldExtractU32,
+        BitfieldInsert,
+        BitfieldReverse,
+        BitwiseAnd,
+        BitwiseExclusiveOr,
+        BitwiseNot,
+        BitwiseOr,
+        Branch,
+        BranchIfFalse,
+        BranchIfTrue,
+        Ceiling,
+        Clamp,
+        ClampU32,
+        CompareEqual,
+        CompareGreater,
+        CompareGreaterOrEqual,
+        CompareGreaterOrEqualU32,
+        CompareGreaterU32,
+        CompareLess,
+        CompareLessOrEqual,
+        CompareLessOrEqualU32,
+        CompareLessU32,
+        CompareNotEqual,
+        ConditionalSelect,
+        ConvertFPToS32,
+        ConvertS32ToFP,
+        ConvertU32ToFP,
+        Copy,
+        Cosine,
+        Discard,
+        Divide,
+        EmitVertex,
+        EndPrimitive,
+        ExponentB2,
+        Floor,
+        FusedMultiplyAdd,
+        IsNan,
+        LoadConstant,
+        LoadGlobal,
+        LoadLocal,
+        LogarithmB2,
+        LogicalAnd,
+        LogicalExclusiveOr,
+        LogicalNot,
+        LogicalOr,
+        LoopBreak,
+        LoopContinue,
+        MarkLabel,
+        Maximum,
+        MaximumU32,
+        Minimum,
+        MinimumU32,
+        Multiply,
+        Negate,
+        PackDouble2x32,
+        PackHalf2x16,
+        ReciprocalSquareRoot,
+        Return,
+        ShiftLeft,
+        ShiftRightS32,
+        ShiftRightU32,
+        Sine,
+        SquareRoot,
+        StoreGlobal,
+        StoreLocal,
+        Subtract,
+        TextureSample,
+        TextureSize,
+        Truncate,
+        UnpackDouble2x32,
+        UnpackHalf2x16,
+
+        Count,
+        FP   = 1 << 16,
+        Mask = 0xffff
+    }
+}
\ No newline at end of file