1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index 624907a..ddef654 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -1423,6 +1423,12 @@ static Align tryEnforceAlignment(Value *V, Align PrefAlign,
     if (!GO->canIncreaseAlignment())
       return CurrentAlign;
 
+    if (GO->isThreadLocal()) {
+      unsigned MaxTLSAlign = GO->getParent()->getMaxTLSAlignment() / CHAR_BIT;
+      if (MaxTLSAlign && PrefAlign > Align(MaxTLSAlign))
+        PrefAlign = Align(MaxTLSAlign);
+    }
+
     GO->setAlignment(PrefAlign);
     return PrefAlign;
   }