[Temporary, Lifetime] Add lifetime marks for temporaries

With all MaterializeTemporaryExprs coming with a ExprWithCleanups, it's
easy to add correct lifetime.end marks into the right RunCleanupsScope.

Differential Revision: http://reviews.llvm.org/D20499

llvm-svn: 274385

1 files changed, 13 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 441cee54f..9d46ff2 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -302,6 +302,19 @@ public:
 
   llvm::Instruction *CurrentFuncletPad = nullptr;
 
+  class CallLifetimeEnd final : public EHScopeStack::Cleanup {
+    llvm::Value *Addr;
+    llvm::Value *Size;
+
+  public:
+    CallLifetimeEnd(Address addr, llvm::Value *size)
+        : Addr(addr.getPointer()), Size(size) {}
+
+    void Emit(CodeGenFunction &CGF, Flags flags) override {
+      CGF.EmitLifetimeEnd(Size, Addr);
+    }
+  };
+
   /// Header for data within LifetimeExtendedCleanupStack.
   struct LifetimeExtendedCleanupHeader {
     /// The size of the following cleanup object.