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
2019-04-17 20:57:08 -03:00 · 2019-04-17 20:57:08 -03:00 · 6b23a2c125
commit 6b23a2c125
parent b2e88b04a8
207 changed files with 11514 additions and 6311 deletions
--- a/Ryujinx.Graphics/Shader/IntermediateRepresentation/PhiNode.cs
+++ b/Ryujinx.Graphics/Shader/IntermediateRepresentation/PhiNode.cs
@ -0,0 +1,94 @@
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
+{
+    class PhiNode : INode
+    {
+        private Operand _dest;
+
+        public Operand Dest
+        {
+            get => _dest;
+            set => _dest = AssignDest(value);
+        }
+
+        private HashSet<BasicBlock> _blocks;
+
+        private class PhiSource
+        {
+            public BasicBlock Block   { get; }
+            public Operand    Operand { get; set; }
+
+            public PhiSource(BasicBlock block, Operand operand)
+            {
+                Block   = block;
+                Operand = operand;
+            }
+        }
+
+        private List<PhiSource> _sources;
+
+        public int SourcesCount => _sources.Count;
+
+        public PhiNode(Operand dest)
+        {
+            _blocks = new HashSet<BasicBlock>();
+
+            _sources = new List<PhiSource>();
+
+            dest.AsgOp = this;
+
+            Dest = dest;
+        }
+
+        private Operand AssignDest(Operand dest)
+        {
+            if (dest != null && dest.Type == OperandType.LocalVariable)
+            {
+                dest.AsgOp = this;
+            }
+
+            return dest;
+        }
+
+        public void AddSource(BasicBlock block, Operand operand)
+        {
+            if (_blocks.Add(block))
+            {
+                if (operand.Type == OperandType.LocalVariable)
+                {
+                    operand.UseOps.Add(this);
+                }
+
+                _sources.Add(new PhiSource(block, operand));
+            }
+        }
+
+        public Operand GetSource(int index)
+        {
+            return _sources[index].Operand;
+        }
+
+        public BasicBlock GetBlock(int index)
+        {
+            return _sources[index].Block;
+        }
+
+        public void SetSource(int index, Operand source)
+        {
+            Operand oldSrc = _sources[index].Operand;
+
+            if (oldSrc != null && oldSrc.Type == OperandType.LocalVariable)
+            {
+                oldSrc.UseOps.Remove(this);
+            }
+
+            if (source.Type == OperandType.LocalVariable)
+            {
+                source.UseOps.Add(this);
+            }
+
+            _sources[index].Operand = source;
+        }
+    }
+}