From 8aeff36d34f8ecf89c5bdf3925a68b5c57614b02 Mon Sep 17 00:00:00 2001
From: Aman Khalid <amankhalid@microsoft.com>
Date: Wed, 31 Jul 2024 15:09:11 +0000
Subject: [PATCH] JIT: Skip GT_LCL_FLD stress if GTF_VAR_CONTEXT is set
 (#105726)

---
 src/coreclr/jit/lclvars.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/coreclr/jit/lclvars.cpp b/src/coreclr/jit/lclvars.cpp
index ad5926522e41d..092aa7f669e0f 100644
--- a/src/coreclr/jit/lclvars.cpp
+++ b/src/coreclr/jit/lclvars.cpp
@@ -8078,6 +8078,14 @@ Compiler::fgWalkResult Compiler::lvaStressLclFldCB(GenTree** pTree, fgWalkData*
             return WALK_CONTINUE;
         }
 
+        // Ignore locals used in runtime lookups
+        if ((tree->gtFlags & GTF_VAR_CONTEXT) != 0)
+        {
+            assert(tree->OperIs(GT_LCL_VAR));
+            varDsc->lvNoLclFldStress = true;
+            return WALK_CONTINUE;
+        }
+
         // Ignore arguments and temps
         if (varDsc->lvIsParam || lclNum >= pComp->info.compLocalsCount)
         {