1 files changed, 6 insertions, 0 deletions
diff --git a/source/slang/slang-ir-specialize-function-call.cpp b/source/slang/slang-ir-specialize-function-call.cpp
index 894d46cce..a2ebbc0cf 100644
--- a/source/slang/slang-ir-specialize-function-call.cpp
+++ b/source/slang/slang-ir-specialize-function-call.cpp
@@ -822,6 +822,12 @@ struct FunctionParameterSpecializationContext
                 {
                     decoration->removeAndDeallocate();
                 }
+                else if (as<IRReadNoneDecoration>(decoration))
+                {
+                    // After specialization, the function may no longer be side effect free
+                    // because the parameter we substituted in maybe a global param. 
+                    decoration->removeAndDeallocate();
+                }
             }
         }