use fixed size lists (dotnet#5011)

tonerdo · May 11, 2020 · e080273 · e080273
1 parent 27d91b0
commit e080273
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/System.Private.Interpreter/src/Internal/Runtime/Interpreter/ILInterpreter.cs b/src/System.Private.Interpreter/src/Internal/Runtime/Interpreter/ILInterpreter.cs
@@ -2679,7 +2679,7 @@ private void InterpretNewObj(int token)
 
                 if (signature.Length == arrayType.Rank)
                 {
-                    lengths = new LowLevelList<int>();
+                    lengths = new LowLevelList<int>(signature.Length);
                     for (int i = arguments.Length - 1; i >= 0; i--)
                     {
                         lengths.Add(arguments[i].AsInt32());
@@ -2689,8 +2689,8 @@ private void InterpretNewObj(int token)
                 {
                     Debug.Assert(arrayType.Rank * 2 == signature.Length);
 
-                    lengths = new LowLevelList<int>();
-                    lowerBounds = new LowLevelList<int>();
+                    lengths = new LowLevelList<int>(arrayType.Rank);
+                    lowerBounds = new LowLevelList<int>(arrayType.Rank);
 
                     for (int i = arguments.Length - 1; i >= 0; i--)
                     {