Micro-optimizations

PerfectNumbers.Core/Gpu/MersenneNumberResidueGpuTester.cs

@@ -45,8 +45,6 @@ public class MersenneNumberResidueGpuTester(bool useGpuOrder)
 		UInt128 batchSize128 = (UInt128)batchSize, q;
 		Span<ulong> orders = orderArray.AsSpan(0, batchSize);
 		ref var ordersRef = ref MemoryMarshal.GetReference(orders);
-		try
-		{
 		while (kStart < maxK && Volatile.Read(ref isPrime))
 		{
 			remaining = maxK - kStart;
@@ -66,8 +64,7 @@ public class MersenneNumberResidueGpuTester(bool useGpuOrder)
 			var ra = new ResidueAutomatonArgs(q0m10, step10, q0m8, step8, q0m3, step3, q0m5, step5);
 
 			kernel(stream, currentSize, exponent, twoPGpu, (GpuUInt128)kStart, last, 0UL,
-						ra, orderBuffer.View, smallCyclesView, primeViews.LastOne, primeViews.LastSeven, primeViews.LastOnePow2, primeViews.LastSevenPow2);                                // kernel(currentSize, exponent, twoPGpu, (GpuUInt128)kStart, last, 0UL,
-																																														   //         ra, orderBuffer.View, smallCyclesView, primeViews.LastOne, primeViews.LastSeven, primeViews.LastOnePow2, primeViews.LastSevenPow2);
+					ra, orderBuffer.View, smallCyclesView, primeViews.LastOne, primeViews.LastSeven, primeViews.LastOnePow2, primeViews.LastSevenPow2);
 
 			accelerator.Synchronize();
 			orderBuffer.View.CopyToCPU(ref ordersRef, currentSize);
@@ -81,18 +78,16 @@ public class MersenneNumberResidueGpuTester(bool useGpuOrder)
 				if (orders[i] != 0UL)
 				{
 					Volatile.Write(ref isPrime, false);
-						break;
+					goto cleanup;
 				}
 			}
 
 			kStart += batchSize128;
 		}
-		}
-		finally
-		{
+
+	cleanup:
 		ArrayPool<ulong>.Shared.Return(orderArray);
 		orderBuffer.Dispose();
 		gpuLease.Dispose();
 	}
-	}
 }