Introduce a CXXTemporariesCleanupScope RAII object and use it to cleanup the temporaries code.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99865 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 31ab101..373c46b 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -254,6 +254,27 @@
}
};
+ /// CXXTemporariesCleanupScope - Enters a new scope for catching live
+ /// temporaries, all of which will be popped once the scope is exited.
+ class CXXTemporariesCleanupScope {
+ CodeGenFunction &CGF;
+ size_t NumLiveTemporaries;
+
+ // DO NOT IMPLEMENT
+ CXXTemporariesCleanupScope(const CXXTemporariesCleanupScope &);
+ CXXTemporariesCleanupScope &operator=(const CXXTemporariesCleanupScope &);
+
+ public:
+ explicit CXXTemporariesCleanupScope(CodeGenFunction &CGF)
+ : CGF(CGF), NumLiveTemporaries(CGF.LiveTemporaries.size()) { }
+
+ ~CXXTemporariesCleanupScope() {
+ while (CGF.LiveTemporaries.size() > NumLiveTemporaries)
+ CGF.PopCXXTemporary();
+ }
+ };
+
+
/// EmitCleanupBlocks - Takes the old cleanup stack size and emits the cleanup
/// blocks that have been added.
void EmitCleanupBlocks(size_t OldCleanupStackSize);