Put C++ ABI headers in a special build directory instead of the top level.

    This patch changes where the C++ ABI headers are put during the build. Previously
    they were put in the top level include directory (not the libc++ header directory).
    However that just polutes the top level directory. Instead this patch creates a special
    directory to put them in. The reason they can't be put under c++/v1 until after the build
    is because libc++ uses the in-source headers, so we can't add the include path of the libc++
    headers in the object dir.

    Additionally this patch teaches the test suite how to find the ABI headers,
    and adds a demangling utility to help debug tests with.

llvm-svn: 289195

1 files changed, 37 insertions, 0 deletions

diff --git a/libcxx/test/support/test.support/test_demangle.pass.cpp b/libcxx/test/support/test.support/test_demangle.pass.cpp
new file mode 100644
index 00000000000..c5668d6f569
--- /dev/null
+++ b/libcxx/test/support/test.support/test_demangle.pass.cpp
@@ -0,0 +1,37 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include "demangle.h"
+#include <typeinfo>
+#include <cassert>
+
+struct MyType {};
+
+template <class T, class U> struct ArgumentListID {};
+
+int main() {
+  struct {
+    const char* raw;
+    const char* expect;
+  } TestCases[] = {
+      {typeid(int).name(), "i"}, // FIXME
+      {typeid(MyType).name(), "MyType"},
+      {typeid(ArgumentListID<int, MyType>).name(), "ArgumentListID<int, MyType>"}
+  };
+  const size_t size = sizeof(TestCases) / sizeof(TestCases[0]);
+  for (size_t i=0; i < size; ++i) {
+    const char* raw = TestCases[i].raw;
+    const char* expect = TestCases[i].expect;
+#ifdef TEST_HAS_NO_DEMANGLE
+    assert(demangle(raw) == raw);
+#else
+    assert(demangle(raw) == expect);
+#endif
+  }
+}