Add DidCallStackSave variable to CodeGenFunction.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64156 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 58d3a73433..03230949e5 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -260,6 +260,10 @@ private:
   /// which the stack depth changes.
   llvm::Value *StackDepth;
 
+  /// DidCallStackSave - Whether llvm.stacksave has been called. Used to avoid
+  /// calling llvm.stacksave for multiple VLAs in the same scope.
+  bool DidCallStackSave;
+  
   /// StackSaveValues - A stack(!) of stack save values. When a new scope is
   /// entered, a null is pushed on this stack. If a VLA is emitted, then the
   /// return value of llvm.stacksave() is stored at the top of this stack.