Add limit to number of generics methods to compile by CrossGen (#5383)

Recursive generic definitions can easily make CrossGen take very
long time to complete. This is the cause of a failure in issue #5366.
This is fixed by limiting the number of methods to compile by CrossGen.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/vm/compile.h b/src/vm/compile.h
index 9a9cc144cc..97c6cc1465 100644
--- a/src/vm/compile.h
+++ b/src/vm/compile.h
@@ -527,6 +527,17 @@ class CEEPreloader : public ICorCompilePreloader
     // Array of methods that we need to compile.
     SArray<MethodDesc*> m_uncompiledMethods;
 
+    int m_methodCompileLimit;
+
+    void AppendUncompiledMethod(MethodDesc *pMD)
+    {
+        if (m_methodCompileLimit > 0)
+        {
+            m_uncompiledMethods.Append(pMD);
+            m_methodCompileLimit--;
+        }
+    }
+
     struct DuplicateMethodEntry
     {
         MethodDesc * pMD;