Rename three cxx files in unittests to cpp.

LLVM uses cpp as its C++ file extension, these are the only three cxx file in
the monorepo. These files apparently were called to escape a CMake check -- use
the LLVM_OPTIONAL_SOURCES mechanism that's meant as an escape for this case
instead.

No intended behavior change.
https://reviews.llvm.org/D46843

llvm-svn: 332368

1 files changed, 16 insertions, 0 deletions

diff --git a/llvm/unittests/Support/DynamicLibrary/ExportedFuncs.cpp b/llvm/unittests/Support/DynamicLibrary/ExportedFuncs.cpp
new file mode 100644
index 00000000000..370c8cb471d
--- /dev/null
+++ b/llvm/unittests/Support/DynamicLibrary/ExportedFuncs.cpp
@@ -0,0 +1,16 @@
+//===- llvm/unittest/Support/DynamicLibrary/ExportedFuncs.cpp -------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PipSqueak.h"
+
+#ifndef PIPSQUEAK_TESTA_RETURN
+#define PIPSQUEAK_TESTA_RETURN "ProcessCall"
+#endif
+
+extern "C" PIPSQUEAK_EXPORT const char *TestA() { return PIPSQUEAK_TESTA_RETURN; }