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// Check that initialization of the only one memcpy-able struct member will not
// be performed twice after successful non-trivial initializtion of the second
// member.
//
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fexceptions -fcxx-exceptions -O0 -fno-elide-constructors -emit-llvm %s -o - | FileCheck %s
int globId = 0;
struct ImplicitCopy {
int id;
ImplicitCopy() { id = 10; }
~ImplicitCopy() { id = 20; }
};
struct ExplicitCopy {
int id;
ExplicitCopy() { id = 15; }
ExplicitCopy(const ExplicitCopy &x) { id = 25; }
~ExplicitCopy() { id = 35; }
};
struct Container {
ImplicitCopy o1; // memcpy-able member.
ExplicitCopy o2; // non-trivial initialization.
Container() { globId = 1000; }
~Container() { globId = 2000; }
};
int main() {
try {
Container c1;
// CHECK-DAG: call void @llvm.memcpy
// CHECK-DAG: declare void @llvm.memcpy
// CHECK-NOT: @llvm.memcpy
Container c2(c1);
return 2;
}
catch (...) {
return 1;
}
return 0;
}
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