PPTC & Pool Enhancements. (#1968)

* PPTC & Pool Enhancements.

* Avoid buffer allocations in CodeGenContext.GetCode(). Avoid stream allocations in PTC.PtcInfo.

Refactoring/nits.

* Use XXHash128, for Ptc.Load & Ptc.Save, x10 faster than Md5.

* Why not a nice Span.

* Added a simple PtcFormatter library for deserialization/serialization, which does not require reflection, in use at PtcJumpTable and PtcProfiler; improves maintainability and simplicity/readability of affected code.

* Nits.

* Revert #1987.

* Revert "Revert #1987."

This reverts commit 998be765cf7f7da5ff0c1c08de704c9012b0f49c.

2 files changed, 34 insertions, 30 deletions

diff --git a/ARMeilleure/IntermediateRepresentation/OperandHelper.cs b/ARMeilleure/IntermediateRepresentation/OperandHelper.cs
index f7381d86..26d66478 100644
--- a/ARMeilleure/IntermediateRepresentation/OperandHelper.cs
+++ b/ARMeilleure/IntermediateRepresentation/OperandHelper.cs
@@ -4,16 +4,6 @@ namespace ARMeilleure.IntermediateRepresentation
 {
     static class OperandHelper
     {
-        private static MemoryOperand MemoryOperand()
-        {
-            return ThreadStaticPool<MemoryOperand>.Instance.Allocate();
-        }
-
-        private static Operand Operand()
-        {
-            return ThreadStaticPool<Operand>.Instance.Allocate();
-        }
-
         public static Operand Const(OperandType type, long value)
         {
             return type == OperandType.I32 ? Operand().With((int)value) : Operand().With(value);
@@ -84,22 +74,34 @@ namespace ARMeilleure.IntermediateRepresentation
             return MemoryOperand().With(type, baseAddress, index, scale, displacement);
         }
 
-        public static void PrepareOperandPool(bool highCq)
+        #region "ThreadStaticPool"
+        public static void PrepareOperandPool(int groupId = 0)
         {
-            ThreadStaticPool<Operand>.PreparePool(highCq ? 1 : 0);
-            ThreadStaticPool<MemoryOperand>.PreparePool(highCq ? 1 : 0);
+            ThreadStaticPool<Operand>.PreparePool(groupId, ChunkSizeLimit.Large);
+            ThreadStaticPool<MemoryOperand>.PreparePool(groupId, ChunkSizeLimit.Small);
+        }
+
+        private static Operand Operand()
+        {
+            return ThreadStaticPool<Operand>.Instance.Allocate();
+        }
+
+        private static MemoryOperand MemoryOperand()
+        {
+            return ThreadStaticPool<MemoryOperand>.Instance.Allocate();
         }
 
-        public static void ReturnOperandPool(bool highCq)
+        public static void ResetOperandPool(int groupId = 0)
         {
-            ThreadStaticPool<Operand>.ReturnPool(highCq ? 1 : 0);
-            ThreadStaticPool<MemoryOperand>.ReturnPool(highCq ? 1 : 0);
+            ThreadStaticPool<MemoryOperand>.ResetPool(groupId);
+            ThreadStaticPool<Operand>.ResetPool(groupId);
         }
 
-        public static void ResetOperandPools()
+        public static void DisposeOperandPools()
         {
-            ThreadStaticPool<Operand>.ResetPools();
-            ThreadStaticPool<MemoryOperand>.ResetPools();
+            ThreadStaticPool<Operand>.DisposePools();
+            ThreadStaticPool<MemoryOperand>.DisposePools();
         }
+        #endregion
     }
 }
diff --git a/ARMeilleure/IntermediateRepresentation/OperationHelper.cs b/ARMeilleure/IntermediateRepresentation/OperationHelper.cs
index 538bdac4..0e560ee0 100644
--- a/ARMeilleure/IntermediateRepresentation/OperationHelper.cs
+++ b/ARMeilleure/IntermediateRepresentation/OperationHelper.cs
@@ -4,11 +4,6 @@ namespace ARMeilleure.IntermediateRepresentation
 {
     static class OperationHelper
     {
-        public static Operation Operation()
-        {
-            return ThreadStaticPool<Operation>.Instance.Allocate();
-        }
-
         public static Operation Operation(Instruction instruction, Operand destination)
         {
             return Operation().With(instruction, destination);
@@ -46,19 +41,26 @@ namespace ARMeilleure.IntermediateRepresentation
             return Operation().With(instruction, destinations, sources);
         }
 
-        public static void PrepareOperationPool(bool highCq)
+        #region "ThreadStaticPool"
+        public static void PrepareOperationPool(int groupId = 0)
         {
-            ThreadStaticPool<Operation>.PreparePool(highCq ? 1 : 0);
+            ThreadStaticPool<Operation>.PreparePool(groupId, ChunkSizeLimit.Medium);
+        }
+
+        private static Operation Operation()
+        {
+            return ThreadStaticPool<Operation>.Instance.Allocate();
         }
 
-        public static void ReturnOperationPool(bool highCq)
+        public static void ResetOperationPool(int groupId = 0)
         {
-            ThreadStaticPool<Operation>.ReturnPool(highCq ? 1 : 0);
+            ThreadStaticPool<Operation>.ResetPool(groupId);
         }
 
-        public static void ResetOperationPools()
+        public static void DisposeOperationPools()
         {
-            ThreadStaticPool<Operation>.ResetPools();
+            ThreadStaticPool<Operation>.DisposePools();
         }
+        #endregion
     }
 }