Ryujinx/Ryujinx.Graphics.Shader/StructuredIr/AstHelper.cs

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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 23:57:08 +00:00
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
namespace Ryujinx.Graphics.Shader.StructuredIr
{
static class AstHelper
{
public static void AddUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Add(parent);
}
}
public static void AddDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Add(parent);
}
}
public static void RemoveUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Remove(parent);
}
}
public static void RemoveDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Remove(parent);
}
}
public static AstAssignment Assign(IAstNode destination, IAstNode source)
{
return new AstAssignment(destination, source);
}
public static AstOperand Const(int value)
{
return new AstOperand(OperandType.Constant, value);
}
public static AstOperand Local(VariableType type)
{
AstOperand local = new AstOperand(OperandType.LocalVariable);
local.VarType = type;
return local;
}
public static IAstNode InverseCond(IAstNode cond)
{
return new AstOperation(Instruction.LogicalNot, cond);
}
public static IAstNode Next(IAstNode node)
{
return node.LLNode.Next?.Value;
}
public static IAstNode Previous(IAstNode node)
{
return node.LLNode.Previous?.Value;
}
}
}