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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - %s | FileCheck %s
union PR23373 {
PR23373(PR23373&) = default;
PR23373 &operator=(PR23373&) = default;
int n;
float f;
};
extern PR23373 pr23373_a;
PR23373 pr23373_b(pr23373_a);
// CHECK-LABEL: define {{.*}} @__cxx_global_var_init(
// CHECK: call void @llvm.memcpy.p0.p0.{{i32|i64}}({{.*}}align 4{{.*}}@pr23373_b{{.*}}, {{.*}}align 4{{.*}} @pr23373_a{{.*}}, [[W:i32|i64]] 4, i1 false)
PR23373 pr23373_f() { return pr23373_a; }
// CHECK-LABEL: define {{.*}} @_Z9pr23373_fv(
// CHECK: call void @llvm.memcpy.p0.p0.[[W]]({{.*}}align 4{{.*}}align 4{{.*}}, [[W]] 4, i1 false)
void pr23373_g(PR23373 &a, PR23373 &b) { a = b; }
// CHECK-LABEL: define {{.*}} @_Z9pr23373_g
// CHECK: call void @llvm.memcpy.p0.p0.[[W]]({{.*}}align 4{{.*}}align 4{{.*}}, [[W]] 4, i1 false)
struct A { virtual void a(); };
A x(A& y) { return y; }
// CHECK: define linkonce_odr {{.*}} @_ZN1AC1ERKS_(ptr {{.*}}%this, ptr noundef nonnull align {{[0-9]+}} dereferenceable({{[0-9]+}}) %0) unnamed_addr
// CHECK: store ptr getelementptr inbounds inrange(-{{[0-9]+}}, {{[0-9]+}}) ({ [3 x ptr] }, ptr @_ZTV1A, i32 0, i32 0, i32 2)
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