b14d123774
iterations of this patch gave explicit template instantiation link-once ODR linkage, which permitted the back end to eliminate unused symbols. Weak ODR linkage still requires the symbols to be generated. llvm-svn: 98441
25 lines
675 B
C++
25 lines
675 B
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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template<typename T> struct A {
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virtual void f(T) { }
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inline void g() { }
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};
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// Explicit instantiations have external linkage.
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// CHECK: define weak_odr void @_ZN1AIiE1gEv(
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template void A<int>::g();
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// CHECK: define weak_odr void @_ZN1AIfE1fEf(
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// CHECK: define weak_odr void @_ZN1AIfE1gEv(
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// FIXME: This should also emit the vtable.
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template struct A<float>;
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// CHECK: define weak_odr void @_Z1fIiEvT_
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template <typename T> void f(T) { }
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template void f<int>(int);
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// CHECK: define weak_odr void @_Z1gIiEvT_
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template <typename T> inline void g(T) { }
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template void g<int>(int);
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