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// RUN: %clang_cc1 %s -std=c++14 -emit-llvm -o - -triple=x86_64-linux-gnu | FileCheck %s
struct AM {
int f1, f2;
};
alignas(8) AM m;
AM load1() {
AM am;
// m is declared to align to 8bytes, so generate load atomic instead
// of libcall.
// CHECK-LABEL: @_Z5load1v
// CHECK: load atomic {{.*}} monotonic, align 8
__atomic_load(&m, &am, 0);
return am;
}
struct BM {
int f1;
alignas(8) AM f2;
};
BM bm;
AM load2() {
AM am;
// BM::f2 is declared to align to 8bytes, so generate load atomic instead
// of libcall.
// CHECK-LABEL: @_Z5load2v
// CHECK: load atomic {{.*}} monotonic, align 8
__atomic_load(&bm.f2, &am, 0);
return am;
}
namespace std {
template <class _Tp>
inline constexpr
__attribute__ ((__visibility__("hidden"), __internal_linkage__))
_Tp* __addressof(_Tp& __x) noexcept
{
return __builtin_addressof(__x);
}
}
AM load3() {
AM am;
// m is declared to align to 8bytes, so generate load atomic instead
// of libcall.
// CHECK-LABEL: @_Z5load3v
// CHECK: load atomic {{.*}} monotonic, align 8
__atomic_load(std::__addressof(m), &am, 0);
return am;
}
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