Implement CAL and RET shader instructions (#1618)

* Add support for CAL and RET shader instructions

* Remove unused stuff

* Fix a bug that could cause the wrong values to be passed to a function

* Avoid repopulating function id dictionary every time

* PR feedback

* Fix vertex shader A/B merge

1 files changed, 19 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operation.cs b/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operation.cs
index 2c4a88cd..a86a278a 100644
--- a/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operation.cs
+++ b/Ryujinx.Graphics.Shader/IntermediateRepresentation/Operation.cs
@@ -48,6 +48,25 @@ namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
             Index = index;
         }
 
+        public void AppendOperands(params Operand[] operands)
+        {
+            int startIndex = _sources.Length;
+
+            Array.Resize(ref _sources, startIndex + operands.Length);
+
+            for (int index = 0; index < operands.Length; index++)
+            {
+                Operand source = operands[index];
+
+                if (source.Type == OperandType.LocalVariable)
+                {
+                    source.UseOps.Add(this);
+                }
+
+                _sources[startIndex + index] = source;
+            }
+        }
+
         private Operand AssignDest(Operand dest)
         {
             if (dest != null && dest.Type == OperandType.LocalVariable)