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-rw-r--r--test/CodeGenCXX/copy-constructor-elim.cpp14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGenCXX/copy-constructor-elim.cpp b/test/CodeGenCXX/copy-constructor-elim.cpp
index 8e9bee9..d9b28ce 100644
--- a/test/CodeGenCXX/copy-constructor-elim.cpp
+++ b/test/CodeGenCXX/copy-constructor-elim.cpp
@@ -43,3 +43,17 @@ int main() {
S s;
Call(s);
}
+
+struct V {
+ int x;
+};
+
+typedef V V_over_aligned __attribute((aligned(8)));
+extern const V_over_aligned gv1 = {};
+
+extern "C" V f() { return gv1; }
+
+// Make sure that we obey the destination's alignment requirements when emitting
+// the copy.
+// CHECK-LABEL: define {{.*}} @f(
+// CHECK: call void @llvm.memcpy.p0i8.p0i8.{{i64|i32}}({{.*}}, i8* bitcast (%struct.V* @gv1 to i8*), {{i64|i32}} 4, i32 4, i1 false)
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