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, 420 insertions, 0 deletions

diff --git a/Ryujinx.Graphics/Shader/Translation/EmitterContextInsts.cs b/Ryujinx.Graphics/Shader/Translation/EmitterContextInsts.cs
new file mode 100644
index 00000000..604aa67d
--- /dev/null
+++ b/Ryujinx.Graphics/Shader/Translation/EmitterContextInsts.cs
@@ -0,0 +1,420 @@
+using Ryujinx.Graphics.Shader.IntermediateRepresentation;
+
+using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
+
+namespace Ryujinx.Graphics.Shader.Translation
+{
+    static class EmitterContextInsts
+    {
+        public static Operand BitfieldExtractS32(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.BitfieldExtractS32, Local(), a, b, c);
+        }
+
+        public static Operand BitfieldExtractU32(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.BitfieldExtractU32, Local(), a, b, c);
+        }
+
+        public static Operand BitfieldInsert(this EmitterContext context, Operand a, Operand b, Operand c, Operand d)
+        {
+            return context.Add(Instruction.BitfieldInsert, Local(), a, b, c, d);
+        }
+
+        public static Operand BitfieldReverse(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.BitfieldReverse, Local(), a);
+        }
+
+        public static Operand BitwiseAnd(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.BitwiseAnd, Local(), a, b);
+        }
+
+        public static Operand BitwiseExclusiveOr(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.BitwiseExclusiveOr, Local(), a, b);
+        }
+
+        public static Operand BitwiseNot(this EmitterContext context, Operand a, bool invert)
+        {
+            if (invert)
+            {
+                a = context.BitwiseNot(a);
+            }
+
+            return a;
+        }
+
+        public static Operand BitwiseNot(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.BitwiseNot, Local(), a);
+        }
+
+        public static Operand BitwiseOr(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.BitwiseOr, Local(), a, b);
+        }
+
+        public static Operand Branch(this EmitterContext context, Operand d)
+        {
+            return context.Add(Instruction.Branch, d);
+        }
+
+        public static Operand BranchIfFalse(this EmitterContext context, Operand d, Operand a)
+        {
+            return context.Add(Instruction.BranchIfFalse, d, a);
+        }
+
+        public static Operand BranchIfTrue(this EmitterContext context, Operand d, Operand a)
+        {
+            return context.Add(Instruction.BranchIfTrue, d, a);
+        }
+
+        public static Operand ConditionalSelect(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.ConditionalSelect, Local(), a, b, c);
+        }
+
+        public static Operand Copy(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.Copy, Local(), a);
+        }
+
+        public static void Copy(this EmitterContext context, Operand d, Operand a)
+        {
+            if (d.Type == OperandType.Constant)
+            {
+                return;
+            }
+
+            context.Add(Instruction.Copy, d, a);
+        }
+
+        public static Operand Discard(this EmitterContext context)
+        {
+            return context.Add(Instruction.Discard);
+        }
+
+        public static Operand EmitVertex(this EmitterContext context)
+        {
+            return context.Add(Instruction.EmitVertex);
+        }
+
+        public static Operand EndPrimitive(this EmitterContext context)
+        {
+            return context.Add(Instruction.EndPrimitive);
+        }
+
+        public static Operand FPAbsNeg(this EmitterContext context, Operand a, bool abs, bool neg)
+        {
+            return context.FPNegate(context.FPAbsolute(a, abs), neg);
+        }
+
+        public static Operand FPAbsolute(this EmitterContext context, Operand a, bool abs)
+        {
+            if (abs)
+            {
+                a = context.FPAbsolute(a);
+            }
+
+            return a;
+        }
+
+        public static Operand FPAbsolute(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Absolute, Local(), a);
+        }
+
+        public static Operand FPAdd(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.Add, Local(), a, b);
+        }
+
+        public static Operand FPCeiling(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Ceiling, Local(), a);
+        }
+
+        public static Operand FPCompareEqual(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.CompareEqual, Local(), a, b);
+        }
+
+        public static Operand FPCompareLess(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.CompareLess, Local(), a, b);
+        }
+
+        public static Operand FPConvertToS32(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.ConvertFPToS32, Local(), a);
+        }
+
+        public static Operand FPCosine(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Cosine, Local(), a);
+        }
+
+        public static Operand FPDivide(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.Divide, Local(), a, b);
+        }
+
+        public static Operand FPExponentB2(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.ExponentB2, Local(), a);
+        }
+
+        public static Operand FPFloor(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Floor, Local(), a);
+        }
+
+        public static Operand FPLogarithmB2(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.LogarithmB2, Local(), a);
+        }
+
+        public static Operand FPMaximum(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.Maximum, Local(), a, b);
+        }
+
+        public static Operand FPMinimum(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.Minimum, Local(), a, b);
+        }
+
+        public static Operand FPMultiply(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.FP | Instruction.Multiply, Local(), a, b);
+        }
+
+        public static Operand FPFusedMultiplyAdd(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.FusedMultiplyAdd, Local(), a, b, c);
+        }
+
+        public static Operand FPNegate(this EmitterContext context, Operand a, bool neg)
+        {
+            if (neg)
+            {
+                a = context.FPNegate(a);
+            }
+
+            return a;
+        }
+
+        public static Operand FPNegate(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Negate, Local(), a);
+        }
+
+        public static Operand FPReciprocal(this EmitterContext context, Operand a)
+        {
+            return context.FPDivide(ConstF(1), a);
+        }
+
+        public static Operand FPReciprocalSquareRoot(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.ReciprocalSquareRoot, Local(), a);
+        }
+
+        public static Operand FPSaturate(this EmitterContext context, Operand a, bool sat)
+        {
+            if (sat)
+            {
+                a = context.FPSaturate(a);
+            }
+
+            return a;
+        }
+
+        public static Operand FPSaturate(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Clamp, Local(), a, ConstF(0), ConstF(1));
+        }
+
+        public static Operand FPSine(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.Sine, Local(), a);
+        }
+
+        public static Operand FPSquareRoot(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.FP | Instruction.SquareRoot, Local(), a);
+        }
+
+        public static Operand FPTruncate(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.Truncate, Local(), a);
+        }
+
+        public static Operand IAbsNeg(this EmitterContext context, Operand a, bool abs, bool neg)
+        {
+            return context.INegate(context.IAbsolute(a, abs), neg);
+        }
+
+        public static Operand IAbsolute(this EmitterContext context, Operand a, bool abs)
+        {
+            if (abs)
+            {
+                a = context.IAbsolute(a);
+            }
+
+            return a;
+        }
+
+        public static Operand IAbsolute(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.Absolute, Local(), a);
+        }
+
+        public static Operand IAdd(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.Add, Local(), a, b);
+        }
+
+        public static Operand IClampS32(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.Clamp, Local(), a, b, c);
+        }
+
+        public static Operand IClampU32(this EmitterContext context, Operand a, Operand b, Operand c)
+        {
+            return context.Add(Instruction.ClampU32, Local(), a, b, c);
+        }
+
+        public static Operand ICompareEqual(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.CompareEqual, Local(), a, b);
+        }
+
+        public static Operand ICompareLess(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.CompareLess, Local(), a, b);
+        }
+
+        public static Operand ICompareLessUnsigned(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.CompareLessU32, Local(), a, b);
+        }
+
+        public static Operand ICompareNotEqual(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.CompareNotEqual, Local(), a, b);
+        }
+
+        public static Operand IConvertS32ToFP(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.ConvertS32ToFP, Local(), a);
+        }
+
+        public static Operand IConvertU32ToFP(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.ConvertU32ToFP, Local(), a);
+        }
+
+        public static Operand IMaximumS32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.Maximum, Local(), a, b);
+        }
+
+        public static Operand IMaximumU32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.MaximumU32, Local(), a, b);
+        }
+
+        public static Operand IMinimumS32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.Minimum, Local(), a, b);
+        }
+
+        public static Operand IMinimumU32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.MinimumU32, Local(), a, b);
+        }
+
+        public static Operand IMultiply(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.Multiply, Local(), a, b);
+        }
+
+        public static Operand INegate(this EmitterContext context, Operand a, bool neg)
+        {
+            if (neg)
+            {
+                a = context.INegate(a);
+            }
+
+            return a;
+        }
+
+        public static Operand INegate(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.Negate, Local(), a);
+        }
+
+        public static Operand ISubtract(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.Subtract, Local(), a, b);
+        }
+
+        public static Operand IsNan(this EmitterContext context, Operand a)
+        {
+            return context.Add(Instruction.IsNan, Local(), a);
+        }
+
+        public static Operand LoadConstant(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.LoadConstant, Local(), a, b);
+        }
+
+        public static Operand PackHalf2x16(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.PackHalf2x16, Local(), a, b);
+        }
+
+        public static Operand Return(this EmitterContext context)
+        {
+            context.PrepareForReturn();
+
+            return context.Add(Instruction.Return);
+        }
+
+        public static Operand ShiftLeft(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.ShiftLeft, Local(), a, b);
+        }
+
+        public static Operand ShiftRightS32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.ShiftRightS32, Local(), a, b);
+        }
+
+        public static Operand ShiftRightU32(this EmitterContext context, Operand a, Operand b)
+        {
+            return context.Add(Instruction.ShiftRightU32, Local(), a, b);
+        }
+
+        public static Operand UnpackHalf2x16High(this EmitterContext context, Operand a)
+        {
+            return UnpackHalf2x16(context, a, 1);
+        }
+
+        public static Operand UnpackHalf2x16Low(this EmitterContext context, Operand a)
+        {
+            return UnpackHalf2x16(context, a, 0);
+        }
+
+        private static Operand UnpackHalf2x16(this EmitterContext context, Operand a, int index)
+        {
+            Operand dest = Local();
+
+            context.Add(new Operation(Instruction.UnpackHalf2x16, index, dest, a));
+
+            return dest;
+        }
+    }
+}
\ No newline at end of file