Vendor import of clang release_34 branch r197841 (effectively, 3.4 RC3):

https://llvm.org/svn/llvm-project/cfe/branches/release_34@197841

1 files changed, 25 insertions, 0 deletions

diff --git a/test/CodeGenCXX/empty-nontrivially-copyable.cpp b/test/CodeGenCXX/empty-nontrivially-copyable.cpp
new file mode 100644
index 0000000..9ee3281
--- /dev/null
+++ b/test/CodeGenCXX/empty-nontrivially-copyable.cpp
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -triple armv7-apple-ios -x c++ -emit-llvm -o - %s | FileCheck %s
+
+// According to the Itanium ABI (3.1.1), types with non-trivial copy
+// constructors passed by value should be passed indirectly, with the caller
+// creating a temporary.
+
+struct Empty;
+
+struct Empty {
+  Empty(const Empty &e);
+  bool check();
+};
+
+bool foo(Empty e) {
+// CHECK: @_Z3foo5Empty(%struct.Empty* %e)
+// CHECK: call {{.*}} @_ZN5Empty5checkEv(%struct.Empty* %e)
+  return e.check();
+}
+
+void caller(Empty &e) {
+// CHECK: @_Z6callerR5Empty(%struct.Empty* %e)
+// CHECK: call {{.*}} @_ZN5EmptyC1ERKS_(%struct.Empty* [[NEWTMP:%.*]], %struct.Empty*
+// CHECK: call {{.*}} @_Z3foo5Empty(%struct.Empty* [[NEWTMP]])
+  foo(e);
+}