For __block variables, cache the LLVM types as well as which LLVM field where the variable is stored.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81599 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 5886035f29..a81f67bda3 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -292,6 +292,16 @@ private:
   /// we know how many temporaries were created by a certain expression.
   llvm::SmallVector<size_t, 4> ConditionalTempDestructionStack;
 
+
+  /// ByrefValueInfoMap - For each __block variable, contains a pair of the LLVM
+  /// type as well as the field number that contains the actual data.
+  llvm::DenseMap<const ValueDecl *, std::pair<const llvm::Type *, 
+                                              unsigned> > ByRefValueInfo;
+  
+  /// getByrefValueFieldNumber - Given a declaration, returns the LLVM field
+  /// number that holds the value.
+  unsigned getByRefValueLLVMField(const ValueDecl *VD) const;
+  
 public:
   CodeGenFunction(CodeGenModule &cgm);