From 875b2ae3d4b471d9f32f675e2c040f1f578e531b Mon Sep 17 00:00:00 2001
From: Manuel Drehwald <git@manuel.drehwald.info>
Date: Sat, 16 Apr 2022 04:06:11 +0200
Subject: [PATCH] fix #607 for -O0 builds (#613)

---
 enzyme/Enzyme/ActivityAnalysis.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/enzyme/Enzyme/ActivityAnalysis.cpp b/enzyme/Enzyme/ActivityAnalysis.cpp
index be2f936c1104f..6cbbec2e7bf95 100644
--- a/enzyme/Enzyme/ActivityAnalysis.cpp
+++ b/enzyme/Enzyme/ActivityAnalysis.cpp
@@ -103,6 +103,7 @@ const char *KnownInactiveFunctionsStartingWith[] = {
     "_ZNSi6ignore",
     // std::ios_base
     "_ZNSt8ios_base",
+    "_ZNKSt9basic_ios",
     "_ZNSt9basic_ios",
     "_ZStorSt13_Ios_OpenmodeS_",
     // std::local