vendor/llvm/llvm-trunk-r375505vendor/llvm

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/StackProtector.h b/include/llvm/CodeGen/StackProtector.h
index 2bdf4425e24a..ed52db3e6269 100644
--- a/include/llvm/CodeGen/StackProtector.h
+++ b/include/llvm/CodeGen/StackProtector.h
@@ -61,6 +61,12 @@ private:
   /// protection when -fstack-protection is used.
   unsigned SSPBufferSize = 0;
 
+  /// VisitedPHIs - The set of PHI nodes visited when determining
+  /// if a variable's reference has been taken.  This set
+  /// is maintained to ensure we don't visit the same PHI node multiple
+  /// times.
+  SmallPtrSet<const PHINode *, 16> VisitedPHIs;
+
   // A prologue is generated.
   bool HasPrologue = false;