Add move semantics to PartialDiagnostic, which can be very expensive to copy.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169535 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/PartialDiagnostic.h b/include/clang/Basic/PartialDiagnostic.h
index 3f4626e..63363a9 100644
--- a/include/clang/Basic/PartialDiagnostic.h
+++ b/include/clang/Basic/PartialDiagnostic.h
@@ -19,6 +19,7 @@
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/SourceLocation.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataTypes.h"
#include <cassert>
@@ -200,6 +201,14 @@
}
}
+#if LLVM_HAS_RVALUE_REFERENCES
+ PartialDiagnostic(PartialDiagnostic &&Other)
+ : DiagID(Other.DiagID), DiagStorage(Other.DiagStorage),
+ Allocator(Other.Allocator) {
+ Other.DiagStorage = 0;
+ }
+#endif
+
PartialDiagnostic(const PartialDiagnostic &Other, Storage *DiagStorage)
: DiagID(Other.DiagID), DiagStorage(DiagStorage),
Allocator(reinterpret_cast<StorageAllocator *>(~uintptr_t(0)))
@@ -242,6 +251,23 @@
return *this;
}
+#if LLVM_HAS_RVALUE_REFERENCES
+ PartialDiagnostic &operator=(PartialDiagnostic &&Other) {
+ if (this != &Other) {
+ if (DiagStorage)
+ freeStorage();
+
+ DiagID = Other.DiagID;
+ DiagStorage = Other.DiagStorage;
+ Allocator = Other.Allocator;
+
+ Other.DiagStorage = 0;
+ }
+
+ return *this;
+ }
+#endif
+
~PartialDiagnostic() {
freeStorage();
}
