1 files changed, 13 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/Options.cpp b/Source/JavaScriptCore/runtime/Options.cpp
index b5ce39c0d..16c0b5d43 100644
--- a/Source/JavaScriptCore/runtime/Options.cpp
+++ b/Source/JavaScriptCore/runtime/Options.cpp
@@ -138,6 +138,19 @@ void Options::initialize()
     ; // Deconfuse editors that do auto indentation
 #endif
     
+#if !ENABLE(JIT)
+    useJIT() = false;
+    useDFGJIT() = false;
+#endif
+#if !ENABLE(YARR_JIT)
+    useRegExpJIT() = false;
+#endif
+
+#if USE(CF) || OS(UNIX)
+    zombiesAreImmortal() = !!getenv("JSImmortalZombieEnabled");
+    useZombieMode() = zombiesAreImmortal() || !!getenv("JSZombieEnabled");
+#endif
+
     // Do range checks where needed and make corrections to the options:
     ASSERT(thresholdForOptimizeAfterLongWarmUp() >= thresholdForOptimizeAfterWarmUp());
     ASSERT(thresholdForOptimizeAfterWarmUp() >= thresholdForOptimizeSoon());