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-rw-r--r--clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp43
1 files changed, 43 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp b/clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp
new file mode 100644
index 0000000..eb13503
--- /dev/null
+++ b/clang/test/CodeGenCXX/copy-assign-volatile-synthesis.cpp
@@ -0,0 +1,43 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
+// rdar://9894548
+
+typedef unsigned long word_t;
+typedef unsigned long u64_t;
+typedef unsigned int u32_t;
+
+class ioapic_redir_t {
+public:
+ union {
+ struct {
+ word_t vector : 8;
+
+ word_t delivery_mode : 3;
+ word_t dest_mode : 1;
+
+ word_t delivery_status : 1;
+ word_t polarity : 1;
+ word_t irr : 1;
+ word_t trigger_mode : 1;
+
+ word_t mask : 1;
+ word_t _pad0 : 15;
+
+ word_t dest : 8;
+ };
+ volatile u32_t raw[2];
+ volatile u64_t raw64;
+ };
+};
+
+struct ioapic_shadow_struct
+{
+ ioapic_redir_t redirs[24];
+} ioapic_shadow[16];
+
+void init_ioapic(unsigned long ioapic_id)
+{
+ ioapic_redir_t entry;
+ ioapic_shadow[ioapic_id].redirs[3] = entry;
+}
+
+// CHECK: call void @llvm.memcpy